<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns:fn="http://www.w3.org/2005/02/xpath-functions">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../../../doc/otp_doc.css" type="text/css">
<title>Erlang -- io</title>
</head>
<body bgcolor="white" text="#000000" link="#0000ff" vlink="#ff00ff" alink="#ff0000"><div id="container">
<script id="js" type="text/javascript" language="JavaScript" src="../../../../doc/js/flipmenu/flipmenu.js"></script><script id="js2" type="text/javascript" src="../../../../doc/js/erlresolvelinks.js"></script><script language="JavaScript" type="text/javascript">
<!--
function getWinHeight() {
var myHeight = 0;
if( typeof( window.innerHeight ) == 'number' ) {
//Non-IE
myHeight = window.innerHeight;
} else if( document.documentElement && ( document.documentElement.clientWidth ||
document.documentElement.clientHeight ) ) {
//IE 6+ in 'standards compliant mode'
myHeight = document.documentElement.clientHeight;
} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
//IE 4 compatible
myHeight = document.body.clientHeight;
}
return myHeight;
}
function setscrollpos() {
var objf=document.getElementById('loadscrollpos');
document.getElementById("leftnav").scrollTop = objf.offsetTop - getWinHeight()/2;
}
function addEvent(obj, evType, fn){
if (obj.addEventListener){
obj.addEventListener(evType, fn, true);
return true;
} else if (obj.attachEvent){
var r = obj.attachEvent("on"+evType, fn);
return r;
} else {
return false;
}
}
addEvent(window, 'load', setscrollpos);
//--></script><div id="leftnav"><div class="innertube">
<img alt="Erlang logo" src="../../../../doc/erlang-logo.png"><br><small><a href="users_guide.html">User's Guide</a><br><a href="index.html">Reference Manual</a><br><a href="release_notes.html">Release Notes</a><br><a href="../pdf/stdlib-1.18.3.pdf">PDF</a><br><a href="../../../../doc/index.html">Top</a></small><p><strong>STDLIB</strong><br><strong>Reference Manual</strong><br><small>Version 1.18.3</small></p>
<br><a href="javascript:openAllFlips()">Expand All</a><br><a href="javascript:closeAllFlips()">Contract All</a><p><small><strong>Table of Contents</strong></small></p>
<ul class="flipMenu">
<li title="STDLIB (App)"><a href="STDLIB_app.html">STDLIB (App)
</a></li>
<li id="no" title="array " expanded="false">array<ul>
<li><a href="array.html">
Top of manual page
</a></li>
<li title="default-1"><a href="array.html#default-1">default/1</a></li>
<li title="fix-1"><a href="array.html#fix-1">fix/1</a></li>
<li title="foldl-3"><a href="array.html#foldl-3">foldl/3</a></li>
<li title="foldr-3"><a href="array.html#foldr-3">foldr/3</a></li>
<li title="from_list-1"><a href="array.html#from_list-1">from_list/1</a></li>
<li title="from_list-2"><a href="array.html#from_list-2">from_list/2</a></li>
<li title="from_orddict-1"><a href="array.html#from_orddict-1">from_orddict/1</a></li>
<li title="from_orddict-2"><a href="array.html#from_orddict-2">from_orddict/2</a></li>
<li title="get-2"><a href="array.html#get-2">get/2</a></li>
<li title="is_array-1"><a href="array.html#is_array-1">is_array/1</a></li>
<li title="is_fix-1"><a href="array.html#is_fix-1">is_fix/1</a></li>
<li title="map-2"><a href="array.html#map-2">map/2</a></li>
<li title="new-0"><a href="array.html#new-0">new/0</a></li>
<li title="new-1"><a href="array.html#new-1">new/1</a></li>
<li title="new-2"><a href="array.html#new-2">new/2</a></li>
<li title="relax-1"><a href="array.html#relax-1">relax/1</a></li>
<li title="reset-2"><a href="array.html#reset-2">reset/2</a></li>
<li title="resize-1"><a href="array.html#resize-1">resize/1</a></li>
<li title="resize-2"><a href="array.html#resize-2">resize/2</a></li>
<li title="set-3"><a href="array.html#set-3">set/3</a></li>
<li title="size-1"><a href="array.html#size-1">size/1</a></li>
<li title="sparse_foldl-3"><a href="array.html#sparse_foldl-3">sparse_foldl/3</a></li>
<li title="sparse_foldr-3"><a href="array.html#sparse_foldr-3">sparse_foldr/3</a></li>
<li title="sparse_map-2"><a href="array.html#sparse_map-2">sparse_map/2</a></li>
<li title="sparse_size-1"><a href="array.html#sparse_size-1">sparse_size/1</a></li>
<li title="sparse_to_list-1"><a href="array.html#sparse_to_list-1">sparse_to_list/1</a></li>
<li title="sparse_to_orddict-1"><a href="array.html#sparse_to_orddict-1">sparse_to_orddict/1</a></li>
<li title="to_list-1"><a href="array.html#to_list-1">to_list/1</a></li>
<li title="to_orddict-1"><a href="array.html#to_orddict-1">to_orddict/1</a></li>
</ul>
</li>
<li id="no" title="base64 " expanded="false">base64<ul>
<li><a href="base64.html">
Top of manual page
</a></li>
<li title="encode-1"><a href="base64.html#encode-1">encode/1</a></li>
<li title="encode_to_string-1"><a href="base64.html#encode_to_string-1">encode_to_string/1</a></li>
<li title="decode-1"><a href="base64.html#decode-1">decode/1</a></li>
<li title="decode_to_string-1"><a href="base64.html#decode_to_string-1">decode_to_string/1</a></li>
<li title="mime_decode-1"><a href="base64.html#mime_decode-1">mime_decode/1</a></li>
<li title="mime_decode_to_string-1"><a href="base64.html#mime_decode_to_string-1">mime_decode_to_string/1</a></li>
</ul>
</li>
<li id="no" title="beam_lib " expanded="false">beam_lib<ul>
<li><a href="beam_lib.html">
Top of manual page
</a></li>
<li title="chunks-2"><a href="beam_lib.html#chunks-2">chunks/2</a></li>
<li title="chunks-3"><a href="beam_lib.html#chunks-3">chunks/3</a></li>
<li title="version-1"><a href="beam_lib.html#version-1">version/1</a></li>
<li title="md5-1"><a href="beam_lib.html#md5-1">md5/1</a></li>
<li title="info-1"><a href="beam_lib.html#info-1">info/1</a></li>
<li title="cmp-2"><a href="beam_lib.html#cmp-2">cmp/2</a></li>
<li title="cmp_dirs-2"><a href="beam_lib.html#cmp_dirs-2">cmp_dirs/2</a></li>
<li title="diff_dirs-2"><a href="beam_lib.html#diff_dirs-2">diff_dirs/2</a></li>
<li title="strip-1"><a href="beam_lib.html#strip-1">strip/1</a></li>
<li title="strip_files-1"><a href="beam_lib.html#strip_files-1">strip_files/1</a></li>
<li title="strip_release-1"><a href="beam_lib.html#strip_release-1">strip_release/1</a></li>
<li title="format_error-1"><a href="beam_lib.html#format_error-1">format_error/1</a></li>
<li title="crypto_key_fun-1"><a href="beam_lib.html#crypto_key_fun-1">crypto_key_fun/1</a></li>
<li title="clear_crypto_key_fun-0"><a href="beam_lib.html#clear_crypto_key_fun-0">clear_crypto_key_fun/0</a></li>
</ul>
</li>
<li id="no" title="binary " expanded="false">binary<ul>
<li><a href="binary.html">
Top of manual page
</a></li>
<li title="at-2"><a href="binary.html#at-2">at/2</a></li>
<li title="bin_to_list-1"><a href="binary.html#bin_to_list-1">bin_to_list/1</a></li>
<li title="bin_to_list-2"><a href="binary.html#bin_to_list-2">bin_to_list/2</a></li>
<li title="bin_to_list-3"><a href="binary.html#bin_to_list-3">bin_to_list/3</a></li>
<li title="compile_pattern-1"><a href="binary.html#compile_pattern-1">compile_pattern/1</a></li>
<li title="copy-1"><a href="binary.html#copy-1">copy/1</a></li>
<li title="copy-2"><a href="binary.html#copy-2">copy/2</a></li>
<li title="decode_unsigned-1"><a href="binary.html#decode_unsigned-1">decode_unsigned/1</a></li>
<li title="decode_unsigned-2"><a href="binary.html#decode_unsigned-2">decode_unsigned/2</a></li>
<li title="encode_unsigned-1"><a href="binary.html#encode_unsigned-1">encode_unsigned/1</a></li>
<li title="encode_unsigned-2"><a href="binary.html#encode_unsigned-2">encode_unsigned/2</a></li>
<li title="first-1"><a href="binary.html#first-1">first/1</a></li>
<li title="last-1"><a href="binary.html#last-1">last/1</a></li>
<li title="list_to_bin-1"><a href="binary.html#list_to_bin-1">list_to_bin/1</a></li>
<li title="longest_common_prefix-1"><a href="binary.html#longest_common_prefix-1">longest_common_prefix/1</a></li>
<li title="longest_common_suffix-1"><a href="binary.html#longest_common_suffix-1">longest_common_suffix/1</a></li>
<li title="match-2"><a href="binary.html#match-2">match/2</a></li>
<li title="match-3"><a href="binary.html#match-3">match/3</a></li>
<li title="matches-2"><a href="binary.html#matches-2">matches/2</a></li>
<li title="matches-3"><a href="binary.html#matches-3">matches/3</a></li>
<li title="part-2"><a href="binary.html#part-2">part/2</a></li>
<li title="part-3"><a href="binary.html#part-3">part/3</a></li>
<li title="referenced_byte_size-1"><a href="binary.html#referenced_byte_size-1">referenced_byte_size/1</a></li>
<li title="replace-3"><a href="binary.html#replace-3">replace/3</a></li>
<li title="replace-4"><a href="binary.html#replace-4">replace/4</a></li>
<li title="split-2"><a href="binary.html#split-2">split/2</a></li>
<li title="split-3"><a href="binary.html#split-3">split/3</a></li>
</ul>
</li>
<li id="no" title="c " expanded="false">c<ul>
<li><a href="c.html">
Top of manual page
</a></li>
<li title="bt-1"><a href="c.html#bt-1">bt/1</a></li>
<li title="c-1"><a href="c.html#c-1">c/1</a></li>
<li title="c-2"><a href="c.html#c-2">c/2</a></li>
<li title="cd-1"><a href="c.html#cd-1">cd/1</a></li>
<li title="flush-0"><a href="c.html#flush-0">flush/0</a></li>
<li title="help-0"><a href="c.html#help-0">help/0</a></li>
<li title="i-0"><a href="c.html#i-0">i/0</a></li>
<li title="ni-0"><a href="c.html#ni-0">ni/0</a></li>
<li title="i-3"><a href="c.html#i-3">i/3</a></li>
<li title="l-1"><a href="c.html#l-1">l/1</a></li>
<li title="lc-1"><a href="c.html#lc-1">lc/1</a></li>
<li title="ls-0"><a href="c.html#ls-0">ls/0</a></li>
<li title="ls-1"><a href="c.html#ls-1">ls/1</a></li>
<li title="m-0"><a href="c.html#m-0">m/0</a></li>
<li title="m-1"><a href="c.html#m-1">m/1</a></li>
<li title="memory-0"><a href="c.html#memory-0">memory/0</a></li>
<li title="memory-1"><a href="c.html#memory-1">memory/1</a></li>
<li title="nc-1"><a href="c.html#nc-1">nc/1</a></li>
<li title="nc-2"><a href="c.html#nc-2">nc/2</a></li>
<li title="nl-1"><a href="c.html#nl-1">nl/1</a></li>
<li title="pid-3"><a href="c.html#pid-3">pid/3</a></li>
<li title="pwd-0"><a href="c.html#pwd-0">pwd/0</a></li>
<li title="q-0"><a href="c.html#q-0">q/0</a></li>
<li title="regs-0"><a href="c.html#regs-0">regs/0</a></li>
<li title="nregs-0"><a href="c.html#nregs-0">nregs/0</a></li>
<li title="xm-1"><a href="c.html#xm-1">xm/1</a></li>
<li title="y-1"><a href="c.html#y-1">y/1</a></li>
<li title="y-2"><a href="c.html#y-2">y/2</a></li>
</ul>
</li>
<li id="no" title="calendar " expanded="false">calendar<ul>
<li><a href="calendar.html">
Top of manual page
</a></li>
<li title="date_to_gregorian_days-1"><a href="calendar.html#date_to_gregorian_days-1">date_to_gregorian_days/1</a></li>
<li title="date_to_gregorian_days-3"><a href="calendar.html#date_to_gregorian_days-3">date_to_gregorian_days/3</a></li>
<li title="datetime_to_gregorian_seconds-1"><a href="calendar.html#datetime_to_gregorian_seconds-1">datetime_to_gregorian_seconds/1</a></li>
<li title="day_of_the_week-1"><a href="calendar.html#day_of_the_week-1">day_of_the_week/1</a></li>
<li title="day_of_the_week-3"><a href="calendar.html#day_of_the_week-3">day_of_the_week/3</a></li>
<li title="gregorian_days_to_date-1"><a href="calendar.html#gregorian_days_to_date-1">gregorian_days_to_date/1</a></li>
<li title="gregorian_seconds_to_datetime-1"><a href="calendar.html#gregorian_seconds_to_datetime-1">gregorian_seconds_to_datetime/1</a></li>
<li title="is_leap_year-1"><a href="calendar.html#is_leap_year-1">is_leap_year/1</a></li>
<li title="iso_week_number-0"><a href="calendar.html#iso_week_number-0">iso_week_number/0</a></li>
<li title="iso_week_number-1"><a href="calendar.html#iso_week_number-1">iso_week_number/1</a></li>
<li title="last_day_of_the_month-2"><a href="calendar.html#last_day_of_the_month-2">last_day_of_the_month/2</a></li>
<li title="local_time-0"><a href="calendar.html#local_time-0">local_time/0</a></li>
<li title="local_time_to_universal_time-1"><a href="calendar.html#local_time_to_universal_time-1">local_time_to_universal_time/1</a></li>
<li title="local_time_to_universal_time_dst-1"><a href="calendar.html#local_time_to_universal_time_dst-1">local_time_to_universal_time_dst/1</a></li>
<li title="now_to_local_time-1"><a href="calendar.html#now_to_local_time-1">now_to_local_time/1</a></li>
<li title="now_to_universal_time-1"><a href="calendar.html#now_to_universal_time-1">now_to_universal_time/1</a></li>
<li title="now_to_datetime-1"><a href="calendar.html#now_to_datetime-1">now_to_datetime/1</a></li>
<li title="seconds_to_daystime-1"><a href="calendar.html#seconds_to_daystime-1">seconds_to_daystime/1</a></li>
<li title="seconds_to_time-1"><a href="calendar.html#seconds_to_time-1">seconds_to_time/1</a></li>
<li title="time_difference-2"><a href="calendar.html#time_difference-2">time_difference/2</a></li>
<li title="time_to_seconds-1"><a href="calendar.html#time_to_seconds-1">time_to_seconds/1</a></li>
<li title="universal_time-0"><a href="calendar.html#universal_time-0">universal_time/0</a></li>
<li title="universal_time_to_local_time-1"><a href="calendar.html#universal_time_to_local_time-1">universal_time_to_local_time/1</a></li>
<li title="valid_date-1"><a href="calendar.html#valid_date-1">valid_date/1</a></li>
<li title="valid_date-3"><a href="calendar.html#valid_date-3">valid_date/3</a></li>
</ul>
</li>
<li id="no" title="dets " expanded="false">dets<ul>
<li><a href="dets.html">
Top of manual page
</a></li>
<li title="all-0"><a href="dets.html#all-0">all/0</a></li>
<li title="bchunk-2"><a href="dets.html#bchunk-2">bchunk/2</a></li>
<li title="close-1"><a href="dets.html#close-1">close/1</a></li>
<li title="delete-2"><a href="dets.html#delete-2">delete/2</a></li>
<li title="delete_all_objects-1"><a href="dets.html#delete_all_objects-1">delete_all_objects/1</a></li>
<li title="delete_object-2"><a href="dets.html#delete_object-2">delete_object/2</a></li>
<li title="first-1"><a href="dets.html#first-1">first/1</a></li>
<li title="foldl-3"><a href="dets.html#foldl-3">foldl/3</a></li>
<li title="foldr-3"><a href="dets.html#foldr-3">foldr/3</a></li>
<li title="from_ets-2"><a href="dets.html#from_ets-2">from_ets/2</a></li>
<li title="info-1"><a href="dets.html#info-1">info/1</a></li>
<li title="info-2"><a href="dets.html#info-2">info/2</a></li>
<li title="init_table-2"><a href="dets.html#init_table-2">init_table/2</a></li>
<li title="init_table-3"><a href="dets.html#init_table-3">init_table/3</a></li>
<li title="insert-2"><a href="dets.html#insert-2">insert/2</a></li>
<li title="insert_new-2"><a href="dets.html#insert_new-2">insert_new/2</a></li>
<li title="is_compatible_bchunk_format-2"><a href="dets.html#is_compatible_bchunk_format-2">is_compatible_bchunk_format/2</a></li>
<li title="is_dets_file-1"><a href="dets.html#is_dets_file-1">is_dets_file/1</a></li>
<li title="lookup-2"><a href="dets.html#lookup-2">lookup/2</a></li>
<li title="match-1"><a href="dets.html#match-1">match/1</a></li>
<li title="match-2"><a href="dets.html#match-2">match/2</a></li>
<li title="match-3"><a href="dets.html#match-3">match/3</a></li>
<li title="match_delete-2"><a href="dets.html#match_delete-2">match_delete/2</a></li>
<li title="match_object-1"><a href="dets.html#match_object-1">match_object/1</a></li>
<li title="match_object-2"><a href="dets.html#match_object-2">match_object/2</a></li>
<li title="match_object-3"><a href="dets.html#match_object-3">match_object/3</a></li>
<li title="member-2"><a href="dets.html#member-2">member/2</a></li>
<li title="next-2"><a href="dets.html#next-2">next/2</a></li>
<li title="open_file-1"><a href="dets.html#open_file-1">open_file/1</a></li>
<li title="open_file-2"><a href="dets.html#open_file-2">open_file/2</a></li>
<li title="pid2name-1"><a href="dets.html#pid2name-1">pid2name/1</a></li>
<li title="repair_continuation-2"><a href="dets.html#repair_continuation-2">repair_continuation/2</a></li>
<li title="safe_fixtable-2"><a href="dets.html#safe_fixtable-2">safe_fixtable/2</a></li>
<li title="select-1"><a href="dets.html#select-1">select/1</a></li>
<li title="select-2"><a href="dets.html#select-2">select/2</a></li>
<li title="select-3"><a href="dets.html#select-3">select/3</a></li>
<li title="select_delete-2"><a href="dets.html#select_delete-2">select_delete/2</a></li>
<li title="slot-2"><a href="dets.html#slot-2">slot/2</a></li>
<li title="sync-1"><a href="dets.html#sync-1">sync/1</a></li>
<li title="table-1"><a href="dets.html#table-1">table/1</a></li>
<li title="table-2"><a href="dets.html#table-2">table/2</a></li>
<li title="to_ets-2"><a href="dets.html#to_ets-2">to_ets/2</a></li>
<li title="traverse-2"><a href="dets.html#traverse-2">traverse/2</a></li>
<li title="update_counter-3"><a href="dets.html#update_counter-3">update_counter/3</a></li>
</ul>
</li>
<li id="no" title="dict " expanded="false">dict<ul>
<li><a href="dict.html">
Top of manual page
</a></li>
<li title="append-3"><a href="dict.html#append-3">append/3</a></li>
<li title="append_list-3"><a href="dict.html#append_list-3">append_list/3</a></li>
<li title="erase-2"><a href="dict.html#erase-2">erase/2</a></li>
<li title="fetch-2"><a href="dict.html#fetch-2">fetch/2</a></li>
<li title="fetch_keys-1"><a href="dict.html#fetch_keys-1">fetch_keys/1</a></li>
<li title="filter-2"><a href="dict.html#filter-2">filter/2</a></li>
<li title="find-2"><a href="dict.html#find-2">find/2</a></li>
<li title="fold-3"><a href="dict.html#fold-3">fold/3</a></li>
<li title="from_list-1"><a href="dict.html#from_list-1">from_list/1</a></li>
<li title="is_key-2"><a href="dict.html#is_key-2">is_key/2</a></li>
<li title="map-2"><a href="dict.html#map-2">map/2</a></li>
<li title="merge-3"><a href="dict.html#merge-3">merge/3</a></li>
<li title="new-0"><a href="dict.html#new-0">new/0</a></li>
<li title="size-1"><a href="dict.html#size-1">size/1</a></li>
<li title="store-3"><a href="dict.html#store-3">store/3</a></li>
<li title="to_list-1"><a href="dict.html#to_list-1">to_list/1</a></li>
<li title="update-3"><a href="dict.html#update-3">update/3</a></li>
<li title="update-4"><a href="dict.html#update-4">update/4</a></li>
<li title="update_counter-3"><a href="dict.html#update_counter-3">update_counter/3</a></li>
</ul>
</li>
<li id="no" title="digraph " expanded="false">digraph<ul>
<li><a href="digraph.html">
Top of manual page
</a></li>
<li title="add_edge-3"><a href="digraph.html#add_edge-3">add_edge/3</a></li>
<li title="add_edge-4"><a href="digraph.html#add_edge-4">add_edge/4</a></li>
<li title="add_edge-5"><a href="digraph.html#add_edge-5">add_edge/5</a></li>
<li title="add_vertex-1"><a href="digraph.html#add_vertex-1">add_vertex/1</a></li>
<li title="add_vertex-2"><a href="digraph.html#add_vertex-2">add_vertex/2</a></li>
<li title="add_vertex-3"><a href="digraph.html#add_vertex-3">add_vertex/3</a></li>
<li title="del_edge-2"><a href="digraph.html#del_edge-2">del_edge/2</a></li>
<li title="del_edges-2"><a href="digraph.html#del_edges-2">del_edges/2</a></li>
<li title="del_path-3"><a href="digraph.html#del_path-3">del_path/3</a></li>
<li title="del_vertex-2"><a href="digraph.html#del_vertex-2">del_vertex/2</a></li>
<li title="del_vertices-2"><a href="digraph.html#del_vertices-2">del_vertices/2</a></li>
<li title="delete-1"><a href="digraph.html#delete-1">delete/1</a></li>
<li title="edge-2"><a href="digraph.html#edge-2">edge/2</a></li>
<li title="edges-1"><a href="digraph.html#edges-1">edges/1</a></li>
<li title="edges-2"><a href="digraph.html#edges-2">edges/2</a></li>
<li title="get_cycle-2"><a href="digraph.html#get_cycle-2">get_cycle/2</a></li>
<li title="get_path-3"><a href="digraph.html#get_path-3">get_path/3</a></li>
<li title="get_short_cycle-2"><a href="digraph.html#get_short_cycle-2">get_short_cycle/2</a></li>
<li title="get_short_path-3"><a href="digraph.html#get_short_path-3">get_short_path/3</a></li>
<li title="in_degree-2"><a href="digraph.html#in_degree-2">in_degree/2</a></li>
<li title="in_edges-2"><a href="digraph.html#in_edges-2">in_edges/2</a></li>
<li title="in_neighbours-2"><a href="digraph.html#in_neighbours-2">in_neighbours/2</a></li>
<li title="info-1"><a href="digraph.html#info-1">info/1</a></li>
<li title="new-0"><a href="digraph.html#new-0">new/0</a></li>
<li title="new-1"><a href="digraph.html#new-1">new/1</a></li>
<li title="no_edges-1"><a href="digraph.html#no_edges-1">no_edges/1</a></li>
<li title="no_vertices-1"><a href="digraph.html#no_vertices-1">no_vertices/1</a></li>
<li title="out_degree-2"><a href="digraph.html#out_degree-2">out_degree/2</a></li>
<li title="out_edges-2"><a href="digraph.html#out_edges-2">out_edges/2</a></li>
<li title="out_neighbours-2"><a href="digraph.html#out_neighbours-2">out_neighbours/2</a></li>
<li title="vertex-2"><a href="digraph.html#vertex-2">vertex/2</a></li>
<li title="vertices-1"><a href="digraph.html#vertices-1">vertices/1</a></li>
</ul>
</li>
<li id="no" title="digraph_utils " expanded="false">digraph_utils<ul>
<li><a href="digraph_utils.html">
Top of manual page
</a></li>
<li title="arborescence_root-1"><a href="digraph_utils.html#arborescence_root-1">arborescence_root/1</a></li>
<li title="components-1"><a href="digraph_utils.html#components-1">components/1</a></li>
<li title="condensation-1"><a href="digraph_utils.html#condensation-1">condensation/1</a></li>
<li title="cyclic_strong_components-1"><a href="digraph_utils.html#cyclic_strong_components-1">cyclic_strong_components/1</a></li>
<li title="is_acyclic-1"><a href="digraph_utils.html#is_acyclic-1">is_acyclic/1</a></li>
<li title="is_arborescence-1"><a href="digraph_utils.html#is_arborescence-1">is_arborescence/1</a></li>
<li title="is_tree-1"><a href="digraph_utils.html#is_tree-1">is_tree/1</a></li>
<li title="loop_vertices-1"><a href="digraph_utils.html#loop_vertices-1">loop_vertices/1</a></li>
<li title="postorder-1"><a href="digraph_utils.html#postorder-1">postorder/1</a></li>
<li title="preorder-1"><a href="digraph_utils.html#preorder-1">preorder/1</a></li>
<li title="reachable-2"><a href="digraph_utils.html#reachable-2">reachable/2</a></li>
<li title="reachable_neighbours-2"><a href="digraph_utils.html#reachable_neighbours-2">reachable_neighbours/2</a></li>
<li title="reaching-2"><a href="digraph_utils.html#reaching-2">reaching/2</a></li>
<li title="reaching_neighbours-2"><a href="digraph_utils.html#reaching_neighbours-2">reaching_neighbours/2</a></li>
<li title="strong_components-1"><a href="digraph_utils.html#strong_components-1">strong_components/1</a></li>
<li title="subgraph-2"><a href="digraph_utils.html#subgraph-2">subgraph/2</a></li>
<li title="subgraph-3"><a href="digraph_utils.html#subgraph-3">subgraph/3</a></li>
<li title="topsort-1"><a href="digraph_utils.html#topsort-1">topsort/1</a></li>
</ul>
</li>
<li id="no" title="epp " expanded="false">epp<ul>
<li><a href="epp.html">
Top of manual page
</a></li>
<li title="open-2"><a href="epp.html#open-2">open/2</a></li>
<li title="open-3"><a href="epp.html#open-3">open/3</a></li>
<li title="close-1"><a href="epp.html#close-1">close/1</a></li>
<li title="parse_erl_form-1"><a href="epp.html#parse_erl_form-1">parse_erl_form/1</a></li>
<li title="parse_file-3"><a href="epp.html#parse_file-3">parse_file/3</a></li>
<li title="format_error-1"><a href="epp.html#format_error-1">format_error/1</a></li>
</ul>
</li>
<li id="no" title="erl_eval " expanded="false">erl_eval<ul>
<li><a href="erl_eval.html">
Top of manual page
</a></li>
<li title="exprs-2"><a href="erl_eval.html#exprs-2">exprs/2</a></li>
<li title="exprs-3"><a href="erl_eval.html#exprs-3">exprs/3</a></li>
<li title="exprs-4"><a href="erl_eval.html#exprs-4">exprs/4</a></li>
<li title="expr-2"><a href="erl_eval.html#expr-2">expr/2</a></li>
<li title="expr-3"><a href="erl_eval.html#expr-3">expr/3</a></li>
<li title="expr-4"><a href="erl_eval.html#expr-4">expr/4</a></li>
<li title="expr-5"><a href="erl_eval.html#expr-5">expr/5</a></li>
<li title="expr_list-2"><a href="erl_eval.html#expr_list-2">expr_list/2</a></li>
<li title="expr_list-3"><a href="erl_eval.html#expr_list-3">expr_list/3</a></li>
<li title="expr_list-4"><a href="erl_eval.html#expr_list-4">expr_list/4</a></li>
<li title="new_bindings-0"><a href="erl_eval.html#new_bindings-0">new_bindings/0</a></li>
<li title="bindings-1"><a href="erl_eval.html#bindings-1">bindings/1</a></li>
<li title="binding-2"><a href="erl_eval.html#binding-2">binding/2</a></li>
<li title="add_binding-3"><a href="erl_eval.html#add_binding-3">add_binding/3</a></li>
<li title="del_binding-2"><a href="erl_eval.html#del_binding-2">del_binding/2</a></li>
</ul>
</li>
<li id="no" title="erl_expand_records " expanded="false">erl_expand_records<ul>
<li><a href="erl_expand_records.html">
Top of manual page
</a></li>
<li title="module-2"><a href="erl_expand_records.html#module-2">module/2</a></li>
</ul>
</li>
<li id="no" title="erl_id_trans " expanded="false">erl_id_trans<ul>
<li><a href="erl_id_trans.html">
Top of manual page
</a></li>
<li title="parse_transform-2"><a href="erl_id_trans.html#parse_transform-2">parse_transform/2</a></li>
</ul>
</li>
<li id="no" title="erl_internal " expanded="false">erl_internal<ul>
<li><a href="erl_internal.html">
Top of manual page
</a></li>
<li title="bif-2"><a href="erl_internal.html#bif-2">bif/2</a></li>
<li title="guard_bif-2"><a href="erl_internal.html#guard_bif-2">guard_bif/2</a></li>
<li title="type_test-2"><a href="erl_internal.html#type_test-2">type_test/2</a></li>
<li title="arith_op-2"><a href="erl_internal.html#arith_op-2">arith_op/2</a></li>
<li title="bool_op-2"><a href="erl_internal.html#bool_op-2">bool_op/2</a></li>
<li title="comp_op-2"><a href="erl_internal.html#comp_op-2">comp_op/2</a></li>
<li title="list_op-2"><a href="erl_internal.html#list_op-2">list_op/2</a></li>
<li title="send_op-2"><a href="erl_internal.html#send_op-2">send_op/2</a></li>
<li title="op_type-2"><a href="erl_internal.html#op_type-2">op_type/2</a></li>
</ul>
</li>
<li id="no" title="erl_lint " expanded="false">erl_lint<ul>
<li><a href="erl_lint.html">
Top of manual page
</a></li>
<li title="module-1"><a href="erl_lint.html#module-1">module/1</a></li>
<li title="module-2"><a href="erl_lint.html#module-2">module/2</a></li>
<li title="module-3"><a href="erl_lint.html#module-3">module/3</a></li>
<li title="is_guard_test-1"><a href="erl_lint.html#is_guard_test-1">is_guard_test/1</a></li>
<li title="format_error-1"><a href="erl_lint.html#format_error-1">format_error/1</a></li>
</ul>
</li>
<li id="no" title="erl_parse " expanded="false">erl_parse<ul>
<li><a href="erl_parse.html">
Top of manual page
</a></li>
<li title="parse_form-1"><a href="erl_parse.html#parse_form-1">parse_form/1</a></li>
<li title="parse_exprs-1"><a href="erl_parse.html#parse_exprs-1">parse_exprs/1</a></li>
<li title="parse_term-1"><a href="erl_parse.html#parse_term-1">parse_term/1</a></li>
<li title="format_error-1"><a href="erl_parse.html#format_error-1">format_error/1</a></li>
<li title="tokens-1"><a href="erl_parse.html#tokens-1">tokens/1</a></li>
<li title="tokens-2"><a href="erl_parse.html#tokens-2">tokens/2</a></li>
<li title="normalise-1"><a href="erl_parse.html#normalise-1">normalise/1</a></li>
<li title="abstract-1"><a href="erl_parse.html#abstract-1">abstract/1</a></li>
</ul>
</li>
<li id="no" title="erl_pp " expanded="false">erl_pp<ul>
<li><a href="erl_pp.html">
Top of manual page
</a></li>
<li title="form-1"><a href="erl_pp.html#form-1">form/1</a></li>
<li title="form-2"><a href="erl_pp.html#form-2">form/2</a></li>
<li title="attribute-1"><a href="erl_pp.html#attribute-1">attribute/1</a></li>
<li title="attribute-2"><a href="erl_pp.html#attribute-2">attribute/2</a></li>
<li title="function-1"><a href="erl_pp.html#function-1">function/1</a></li>
<li title="function-2"><a href="erl_pp.html#function-2">function/2</a></li>
<li title="guard-1"><a href="erl_pp.html#guard-1">guard/1</a></li>
<li title="guard-2"><a href="erl_pp.html#guard-2">guard/2</a></li>
<li title="exprs-1"><a href="erl_pp.html#exprs-1">exprs/1</a></li>
<li title="exprs-2"><a href="erl_pp.html#exprs-2">exprs/2</a></li>
<li title="exprs-3"><a href="erl_pp.html#exprs-3">exprs/3</a></li>
<li title="expr-1"><a href="erl_pp.html#expr-1">expr/1</a></li>
<li title="expr-2"><a href="erl_pp.html#expr-2">expr/2</a></li>
<li title="expr-3"><a href="erl_pp.html#expr-3">expr/3</a></li>
<li title="expr-4"><a href="erl_pp.html#expr-4">expr/4</a></li>
</ul>
</li>
<li id="no" title="erl_scan " expanded="false">erl_scan<ul>
<li><a href="erl_scan.html">
Top of manual page
</a></li>
<li title="string-1"><a href="erl_scan.html#string-1">string/1</a></li>
<li title="string-2"><a href="erl_scan.html#string-2">string/2</a></li>
<li title="string-3"><a href="erl_scan.html#string-3">string/3</a></li>
<li title="tokens-3"><a href="erl_scan.html#tokens-3">tokens/3</a></li>
<li title="tokens-4"><a href="erl_scan.html#tokens-4">tokens/4</a></li>
<li title="reserved_word-1"><a href="erl_scan.html#reserved_word-1">reserved_word/1</a></li>
<li title="token_info-1"><a href="erl_scan.html#token_info-1">token_info/1</a></li>
<li title="token_info-2"><a href="erl_scan.html#token_info-2">token_info/2</a></li>
<li title="attributes_info-1"><a href="erl_scan.html#attributes_info-1">attributes_info/1</a></li>
<li title="attributes_info-2"><a href="erl_scan.html#attributes_info-2">attributes_info/2</a></li>
<li title="set_attribute-3"><a href="erl_scan.html#set_attribute-3">set_attribute/3</a></li>
<li title="format_error-1"><a href="erl_scan.html#format_error-1">format_error/1</a></li>
</ul>
</li>
<li id="no" title="erl_tar " expanded="false">erl_tar<ul>
<li><a href="erl_tar.html">
Top of manual page
</a></li>
<li title="add-3"><a href="erl_tar.html#add-3">add/3</a></li>
<li title="add-4"><a href="erl_tar.html#add-4">add/4</a></li>
<li title="close-1"><a href="erl_tar.html#close-1">close/1</a></li>
<li title="create-2"><a href="erl_tar.html#create-2">create/2</a></li>
<li title="create-3"><a href="erl_tar.html#create-3">create/3</a></li>
<li title="extract-1"><a href="erl_tar.html#extract-1">extract/1</a></li>
<li title="extract-2"><a href="erl_tar.html#extract-2">extract/2</a></li>
<li title="format_error-1"><a href="erl_tar.html#format_error-1">format_error/1</a></li>
<li title="open-2"><a href="erl_tar.html#open-2">open/2</a></li>
<li title="table-1"><a href="erl_tar.html#table-1">table/1</a></li>
<li title="table-2"><a href="erl_tar.html#table-2">table/2</a></li>
<li title="t-1"><a href="erl_tar.html#t-1">t/1</a></li>
<li title="tt-1"><a href="erl_tar.html#tt-1">tt/1</a></li>
</ul>
</li>
<li id="no" title="ets " expanded="false">ets<ul>
<li><a href="ets.html">
Top of manual page
</a></li>
<li title="all-0"><a href="ets.html#all-0">all/0</a></li>
<li title="delete-1"><a href="ets.html#delete-1">delete/1</a></li>
<li title="delete-2"><a href="ets.html#delete-2">delete/2</a></li>
<li title="delete_all_objects-1"><a href="ets.html#delete_all_objects-1">delete_all_objects/1</a></li>
<li title="delete_object-2"><a href="ets.html#delete_object-2">delete_object/2</a></li>
<li title="file2tab-1"><a href="ets.html#file2tab-1">file2tab/1</a></li>
<li title="file2tab-2"><a href="ets.html#file2tab-2">file2tab/2</a></li>
<li title="first-1"><a href="ets.html#first-1">first/1</a></li>
<li title="foldl-3"><a href="ets.html#foldl-3">foldl/3</a></li>
<li title="foldr-3"><a href="ets.html#foldr-3">foldr/3</a></li>
<li title="from_dets-2"><a href="ets.html#from_dets-2">from_dets/2</a></li>
<li title="fun2ms-1"><a href="ets.html#fun2ms-1">fun2ms/1</a></li>
<li title="give_away-3"><a href="ets.html#give_away-3">give_away/3</a></li>
<li title="i-0"><a href="ets.html#i-0">i/0</a></li>
<li title="i-1"><a href="ets.html#i-1">i/1</a></li>
<li title="info-1"><a href="ets.html#info-1">info/1</a></li>
<li title="info-2"><a href="ets.html#info-2">info/2</a></li>
<li title="init_table-2"><a href="ets.html#init_table-2">init_table/2</a></li>
<li title="insert-2"><a href="ets.html#insert-2">insert/2</a></li>
<li title="insert_new-2"><a href="ets.html#insert_new-2">insert_new/2</a></li>
<li title="is_compiled_ms-1"><a href="ets.html#is_compiled_ms-1">is_compiled_ms/1</a></li>
<li title="last-1"><a href="ets.html#last-1">last/1</a></li>
<li title="lookup-2"><a href="ets.html#lookup-2">lookup/2</a></li>
<li title="lookup_element-3"><a href="ets.html#lookup_element-3">lookup_element/3</a></li>
<li title="match-2"><a href="ets.html#match-2">match/2</a></li>
<li title="match-3"><a href="ets.html#match-3">match/3</a></li>
<li title="match-1"><a href="ets.html#match-1">match/1</a></li>
<li title="match_delete-2"><a href="ets.html#match_delete-2">match_delete/2</a></li>
<li title="match_object-2"><a href="ets.html#match_object-2">match_object/2</a></li>
<li title="match_object-3"><a href="ets.html#match_object-3">match_object/3</a></li>
<li title="match_object-1"><a href="ets.html#match_object-1">match_object/1</a></li>
<li title="match_spec_compile-1"><a href="ets.html#match_spec_compile-1">match_spec_compile/1</a></li>
<li title="match_spec_run-2"><a href="ets.html#match_spec_run-2">match_spec_run/2</a></li>
<li title="member-2"><a href="ets.html#member-2">member/2</a></li>
<li title="new-2"><a href="ets.html#new-2">new/2</a></li>
<li title="next-2"><a href="ets.html#next-2">next/2</a></li>
<li title="prev-2"><a href="ets.html#prev-2">prev/2</a></li>
<li title="rename-2"><a href="ets.html#rename-2">rename/2</a></li>
<li title="repair_continuation-2"><a href="ets.html#repair_continuation-2">repair_continuation/2</a></li>
<li title="safe_fixtable-2"><a href="ets.html#safe_fixtable-2">safe_fixtable/2</a></li>
<li title="select-2"><a href="ets.html#select-2">select/2</a></li>
<li title="select-3"><a href="ets.html#select-3">select/3</a></li>
<li title="select-1"><a href="ets.html#select-1">select/1</a></li>
<li title="select_count-2"><a href="ets.html#select_count-2">select_count/2</a></li>
<li title="select_delete-2"><a href="ets.html#select_delete-2">select_delete/2</a></li>
<li title="select_reverse-2"><a href="ets.html#select_reverse-2">select_reverse/2</a></li>
<li title="select_reverse-3"><a href="ets.html#select_reverse-3">select_reverse/3</a></li>
<li title="select_reverse-1"><a href="ets.html#select_reverse-1">select_reverse/1</a></li>
<li title="setopts-2"><a href="ets.html#setopts-2">setopts/2</a></li>
<li title="slot-2"><a href="ets.html#slot-2">slot/2</a></li>
<li title="tab2file-2"><a href="ets.html#tab2file-2">tab2file/2</a></li>
<li title="tab2file-3"><a href="ets.html#tab2file-3">tab2file/3</a></li>
<li title="tab2list-1"><a href="ets.html#tab2list-1">tab2list/1</a></li>
<li title="tabfile_info-1"><a href="ets.html#tabfile_info-1">tabfile_info/1</a></li>
<li title="table-1"><a href="ets.html#table-1">table/1</a></li>
<li title="table-2"><a href="ets.html#table-2">table/2</a></li>
<li title="test_ms-2"><a href="ets.html#test_ms-2">test_ms/2</a></li>
<li title="to_dets-2"><a href="ets.html#to_dets-2">to_dets/2</a></li>
<li title="update_counter-3"><a href="ets.html#update_counter-3">update_counter/3</a></li>
<li title="update_counter-3"><a href="ets.html#update_counter-3">update_counter/3</a></li>
<li title="update_counter-3"><a href="ets.html#update_counter-3">update_counter/3</a></li>
<li title="update_element-3"><a href="ets.html#update_element-3">update_element/3</a></li>
<li title="update_element-3"><a href="ets.html#update_element-3">update_element/3</a></li>
</ul>
</li>
<li id="no" title="file_sorter " expanded="false">file_sorter<ul>
<li><a href="file_sorter.html">
Top of manual page
</a></li>
<li title="sort-1"><a href="file_sorter.html#sort-1">sort/1</a></li>
<li title="sort-2"><a href="file_sorter.html#sort-2">sort/2</a></li>
<li title="sort-3"><a href="file_sorter.html#sort-3">sort/3</a></li>
<li title="keysort-2"><a href="file_sorter.html#keysort-2">keysort/2</a></li>
<li title="keysort-3"><a href="file_sorter.html#keysort-3">keysort/3</a></li>
<li title="keysort-4"><a href="file_sorter.html#keysort-4">keysort/4</a></li>
<li title="merge-2"><a href="file_sorter.html#merge-2">merge/2</a></li>
<li title="merge-3"><a href="file_sorter.html#merge-3">merge/3</a></li>
<li title="keymerge-3"><a href="file_sorter.html#keymerge-3">keymerge/3</a></li>
<li title="keymerge-4"><a href="file_sorter.html#keymerge-4">keymerge/4</a></li>
<li title="check-1"><a href="file_sorter.html#check-1">check/1</a></li>
<li title="check-2"><a href="file_sorter.html#check-2">check/2</a></li>
<li title="keycheck-2"><a href="file_sorter.html#keycheck-2">keycheck/2</a></li>
<li title="keycheck-3"><a href="file_sorter.html#keycheck-3">keycheck/3</a></li>
</ul>
</li>
<li id="no" title="filelib " expanded="false">filelib<ul>
<li><a href="filelib.html">
Top of manual page
</a></li>
<li title="ensure_dir-1"><a href="filelib.html#ensure_dir-1">ensure_dir/1</a></li>
<li title="file_size-1"><a href="filelib.html#file_size-1">file_size/1</a></li>
<li title="fold_files-5"><a href="filelib.html#fold_files-5">fold_files/5</a></li>
<li title="is_dir-1"><a href="filelib.html#is_dir-1">is_dir/1</a></li>
<li title="is_file-1"><a href="filelib.html#is_file-1">is_file/1</a></li>
<li title="is_regular-1"><a href="filelib.html#is_regular-1">is_regular/1</a></li>
<li title="last_modified-1"><a href="filelib.html#last_modified-1">last_modified/1</a></li>
<li title="wildcard-1"><a href="filelib.html#wildcard-1">wildcard/1</a></li>
<li title="wildcard-2"><a href="filelib.html#wildcard-2">wildcard/2</a></li>
</ul>
</li>
<li id="no" title="filename " expanded="false">filename<ul>
<li><a href="filename.html">
Top of manual page
</a></li>
<li title="absname-1"><a href="filename.html#absname-1">absname/1</a></li>
<li title="absname-2"><a href="filename.html#absname-2">absname/2</a></li>
<li title="absname_join-2"><a href="filename.html#absname_join-2">absname_join/2</a></li>
<li title="basename-1"><a href="filename.html#basename-1">basename/1</a></li>
<li title="basename-2"><a href="filename.html#basename-2">basename/2</a></li>
<li title="dirname-1"><a href="filename.html#dirname-1">dirname/1</a></li>
<li title="extension-1"><a href="filename.html#extension-1">extension/1</a></li>
<li title="flatten-1"><a href="filename.html#flatten-1">flatten/1</a></li>
<li title="join-1"><a href="filename.html#join-1">join/1</a></li>
<li title="join-2"><a href="filename.html#join-2">join/2</a></li>
<li title="nativename-1"><a href="filename.html#nativename-1">nativename/1</a></li>
<li title="pathtype-1"><a href="filename.html#pathtype-1">pathtype/1</a></li>
<li title="rootname-1"><a href="filename.html#rootname-1">rootname/1</a></li>
<li title="rootname-2"><a href="filename.html#rootname-2">rootname/2</a></li>
<li title="split-1"><a href="filename.html#split-1">split/1</a></li>
<li title="find_src-1"><a href="filename.html#find_src-1">find_src/1</a></li>
<li title="find_src-2"><a href="filename.html#find_src-2">find_src/2</a></li>
</ul>
</li>
<li id="no" title="gb_sets " expanded="false">gb_sets<ul>
<li><a href="gb_sets.html">
Top of manual page
</a></li>
<li title="add-2"><a href="gb_sets.html#add-2">add/2</a></li>
<li title="add_element-2"><a href="gb_sets.html#add_element-2">add_element/2</a></li>
<li title="balance-1"><a href="gb_sets.html#balance-1">balance/1</a></li>
<li title="delete-2"><a href="gb_sets.html#delete-2">delete/2</a></li>
<li title="delete_any-2"><a href="gb_sets.html#delete_any-2">delete_any/2</a></li>
<li title="del_element-2"><a href="gb_sets.html#del_element-2">del_element/2</a></li>
<li title="difference-2"><a href="gb_sets.html#difference-2">difference/2</a></li>
<li title="subtract-2"><a href="gb_sets.html#subtract-2">subtract/2</a></li>
<li title="empty-0"><a href="gb_sets.html#empty-0">empty/0</a></li>
<li title="new-0"><a href="gb_sets.html#new-0">new/0</a></li>
<li title="filter-2"><a href="gb_sets.html#filter-2">filter/2</a></li>
<li title="fold-3"><a href="gb_sets.html#fold-3">fold/3</a></li>
<li title="from_list-1"><a href="gb_sets.html#from_list-1">from_list/1</a></li>
<li title="from_ordset-1"><a href="gb_sets.html#from_ordset-1">from_ordset/1</a></li>
<li title="insert-2"><a href="gb_sets.html#insert-2">insert/2</a></li>
<li title="intersection-2"><a href="gb_sets.html#intersection-2">intersection/2</a></li>
<li title="intersection-1"><a href="gb_sets.html#intersection-1">intersection/1</a></li>
<li title="is_disjoint-2"><a href="gb_sets.html#is_disjoint-2">is_disjoint/2</a></li>
<li title="is_empty-1"><a href="gb_sets.html#is_empty-1">is_empty/1</a></li>
<li title="is_member-2"><a href="gb_sets.html#is_member-2">is_member/2</a></li>
<li title="is_element-2"><a href="gb_sets.html#is_element-2">is_element/2</a></li>
<li title="is_set-1"><a href="gb_sets.html#is_set-1">is_set/1</a></li>
<li title="is_subset-2"><a href="gb_sets.html#is_subset-2">is_subset/2</a></li>
<li title="iterator-1"><a href="gb_sets.html#iterator-1">iterator/1</a></li>
<li title="largest-1"><a href="gb_sets.html#largest-1">largest/1</a></li>
<li title="next-1"><a href="gb_sets.html#next-1">next/1</a></li>
<li title="singleton-1"><a href="gb_sets.html#singleton-1">singleton/1</a></li>
<li title="size-1"><a href="gb_sets.html#size-1">size/1</a></li>
<li title="smallest-1"><a href="gb_sets.html#smallest-1">smallest/1</a></li>
<li title="take_largest-1"><a href="gb_sets.html#take_largest-1">take_largest/1</a></li>
<li title="take_smallest-1"><a href="gb_sets.html#take_smallest-1">take_smallest/1</a></li>
<li title="to_list-1"><a href="gb_sets.html#to_list-1">to_list/1</a></li>
<li title="union-2"><a href="gb_sets.html#union-2">union/2</a></li>
<li title="union-1"><a href="gb_sets.html#union-1">union/1</a></li>
</ul>
</li>
<li id="no" title="gb_trees " expanded="false">gb_trees<ul>
<li><a href="gb_trees.html">
Top of manual page
</a></li>
<li title="balance-1"><a href="gb_trees.html#balance-1">balance/1</a></li>
<li title="delete-2"><a href="gb_trees.html#delete-2">delete/2</a></li>
<li title="delete_any-2"><a href="gb_trees.html#delete_any-2">delete_any/2</a></li>
<li title="empty-0"><a href="gb_trees.html#empty-0">empty/0</a></li>
<li title="enter-3"><a href="gb_trees.html#enter-3">enter/3</a></li>
<li title="from_orddict-1"><a href="gb_trees.html#from_orddict-1">from_orddict/1</a></li>
<li title="get-2"><a href="gb_trees.html#get-2">get/2</a></li>
<li title="insert-3"><a href="gb_trees.html#insert-3">insert/3</a></li>
<li title="is_defined-2"><a href="gb_trees.html#is_defined-2">is_defined/2</a></li>
<li title="is_empty-1"><a href="gb_trees.html#is_empty-1">is_empty/1</a></li>
<li title="iterator-1"><a href="gb_trees.html#iterator-1">iterator/1</a></li>
<li title="keys-1"><a href="gb_trees.html#keys-1">keys/1</a></li>
<li title="largest-1"><a href="gb_trees.html#largest-1">largest/1</a></li>
<li title="lookup-2"><a href="gb_trees.html#lookup-2">lookup/2</a></li>
<li title="map-2"><a href="gb_trees.html#map-2">map/2</a></li>
<li title="next-1"><a href="gb_trees.html#next-1">next/1</a></li>
<li title="size-1"><a href="gb_trees.html#size-1">size/1</a></li>
<li title="smallest-1"><a href="gb_trees.html#smallest-1">smallest/1</a></li>
<li title="take_largest-1"><a href="gb_trees.html#take_largest-1">take_largest/1</a></li>
<li title="take_smallest-1"><a href="gb_trees.html#take_smallest-1">take_smallest/1</a></li>
<li title="to_list-1"><a href="gb_trees.html#to_list-1">to_list/1</a></li>
<li title="update-3"><a href="gb_trees.html#update-3">update/3</a></li>
<li title="values-1"><a href="gb_trees.html#values-1">values/1</a></li>
</ul>
</li>
<li id="no" title="gen_event " expanded="false">gen_event<ul>
<li><a href="gen_event.html">
Top of manual page
</a></li>
<li title="start_link-0"><a href="gen_event.html#start_link-0">start_link/0</a></li>
<li title="start_link-1"><a href="gen_event.html#start_link-1">start_link/1</a></li>
<li title="start-0"><a href="gen_event.html#start-0">start/0</a></li>
<li title="start-1"><a href="gen_event.html#start-1">start/1</a></li>
<li title="add_handler-3"><a href="gen_event.html#add_handler-3">add_handler/3</a></li>
<li title="add_sup_handler-3"><a href="gen_event.html#add_sup_handler-3">add_sup_handler/3</a></li>
<li title="notify-2"><a href="gen_event.html#notify-2">notify/2</a></li>
<li title="sync_notify-2"><a href="gen_event.html#sync_notify-2">sync_notify/2</a></li>
<li title="call-3"><a href="gen_event.html#call-3">call/3</a></li>
<li title="call-4"><a href="gen_event.html#call-4">call/4</a></li>
<li title="delete_handler-3"><a href="gen_event.html#delete_handler-3">delete_handler/3</a></li>
<li title="swap_handler-3"><a href="gen_event.html#swap_handler-3">swap_handler/3</a></li>
<li title="swap_sup_handler-3"><a href="gen_event.html#swap_sup_handler-3">swap_sup_handler/3</a></li>
<li title="which_handlers-1"><a href="gen_event.html#which_handlers-1">which_handlers/1</a></li>
<li title="stop-1"><a href="gen_event.html#stop-1">stop/1</a></li>
<li title="Module:init-1"><a href="gen_event.html#Module:init-1">Module:init/1</a></li>
<li title="Module:handle_event-2"><a href="gen_event.html#Module:handle_event-2">Module:handle_event/2</a></li>
<li title="Module:handle_call-2"><a href="gen_event.html#Module:handle_call-2">Module:handle_call/2</a></li>
<li title="Module:handle_info-2"><a href="gen_event.html#Module:handle_info-2">Module:handle_info/2</a></li>
<li title="Module:terminate-2"><a href="gen_event.html#Module:terminate-2">Module:terminate/2</a></li>
<li title="Module:code_change-3"><a href="gen_event.html#Module:code_change-3">Module:code_change/3</a></li>
<li title="Module:format_status-2"><a href="gen_event.html#Module:format_status-2">Module:format_status/2</a></li>
</ul>
</li>
<li id="no" title="gen_fsm " expanded="false">gen_fsm<ul>
<li><a href="gen_fsm.html">
Top of manual page
</a></li>
<li title="start_link-3"><a href="gen_fsm.html#start_link-3">start_link/3</a></li>
<li title="start_link-4"><a href="gen_fsm.html#start_link-4">start_link/4</a></li>
<li title="start-3"><a href="gen_fsm.html#start-3">start/3</a></li>
<li title="start-4"><a href="gen_fsm.html#start-4">start/4</a></li>
<li title="send_event-2"><a href="gen_fsm.html#send_event-2">send_event/2</a></li>
<li title="send_all_state_event-2"><a href="gen_fsm.html#send_all_state_event-2">send_all_state_event/2</a></li>
<li title="sync_send_event-2"><a href="gen_fsm.html#sync_send_event-2">sync_send_event/2</a></li>
<li title="sync_send_event-3"><a href="gen_fsm.html#sync_send_event-3">sync_send_event/3</a></li>
<li title="sync_send_all_state_event-2"><a href="gen_fsm.html#sync_send_all_state_event-2">sync_send_all_state_event/2</a></li>
<li title="sync_send_all_state_event-3"><a href="gen_fsm.html#sync_send_all_state_event-3">sync_send_all_state_event/3</a></li>
<li title="reply-2"><a href="gen_fsm.html#reply-2">reply/2</a></li>
<li title="send_event_after-2"><a href="gen_fsm.html#send_event_after-2">send_event_after/2</a></li>
<li title="start_timer-2"><a href="gen_fsm.html#start_timer-2">start_timer/2</a></li>
<li title="cancel_timer-1"><a href="gen_fsm.html#cancel_timer-1">cancel_timer/1</a></li>
<li title="enter_loop-4"><a href="gen_fsm.html#enter_loop-4">enter_loop/4</a></li>
<li title="enter_loop-5"><a href="gen_fsm.html#enter_loop-5">enter_loop/5</a></li>
<li title="enter_loop-5"><a href="gen_fsm.html#enter_loop-5">enter_loop/5</a></li>
<li title="enter_loop-6"><a href="gen_fsm.html#enter_loop-6">enter_loop/6</a></li>
<li title="Module:init-1"><a href="gen_fsm.html#Module:init-1">Module:init/1</a></li>
<li title="Module:StateName-2"><a href="gen_fsm.html#Module:StateName-2">Module:StateName/2</a></li>
<li title="Module:handle_event-3"><a href="gen_fsm.html#Module:handle_event-3">Module:handle_event/3</a></li>
<li title="Module:StateName-3"><a href="gen_fsm.html#Module:StateName-3">Module:StateName/3</a></li>
<li title="Module:handle_sync_event-4"><a href="gen_fsm.html#Module:handle_sync_event-4">Module:handle_sync_event/4</a></li>
<li title="Module:handle_info-3"><a href="gen_fsm.html#Module:handle_info-3">Module:handle_info/3</a></li>
<li title="Module:terminate-3"><a href="gen_fsm.html#Module:terminate-3">Module:terminate/3</a></li>
<li title="Module:code_change-4"><a href="gen_fsm.html#Module:code_change-4">Module:code_change/4</a></li>
<li title="Module:format_status-2"><a href="gen_fsm.html#Module:format_status-2">Module:format_status/2</a></li>
</ul>
</li>
<li id="no" title="gen_server " expanded="false">gen_server<ul>
<li><a href="gen_server.html">
Top of manual page
</a></li>
<li title="start_link-3"><a href="gen_server.html#start_link-3">start_link/3</a></li>
<li title="start_link-4"><a href="gen_server.html#start_link-4">start_link/4</a></li>
<li title="start-3"><a href="gen_server.html#start-3">start/3</a></li>
<li title="start-4"><a href="gen_server.html#start-4">start/4</a></li>
<li title="call-2"><a href="gen_server.html#call-2">call/2</a></li>
<li title="call-3"><a href="gen_server.html#call-3">call/3</a></li>
<li title="multi_call-2"><a href="gen_server.html#multi_call-2">multi_call/2</a></li>
<li title="multi_call-3"><a href="gen_server.html#multi_call-3">multi_call/3</a></li>
<li title="multi_call-4"><a href="gen_server.html#multi_call-4">multi_call/4</a></li>
<li title="cast-2"><a href="gen_server.html#cast-2">cast/2</a></li>
<li title="abcast-2"><a href="gen_server.html#abcast-2">abcast/2</a></li>
<li title="abcast-3"><a href="gen_server.html#abcast-3">abcast/3</a></li>
<li title="reply-2"><a href="gen_server.html#reply-2">reply/2</a></li>
<li title="enter_loop-3"><a href="gen_server.html#enter_loop-3">enter_loop/3</a></li>
<li title="enter_loop-4"><a href="gen_server.html#enter_loop-4">enter_loop/4</a></li>
<li title="enter_loop-4"><a href="gen_server.html#enter_loop-4">enter_loop/4</a></li>
<li title="enter_loop-5"><a href="gen_server.html#enter_loop-5">enter_loop/5</a></li>
<li title="Module:init-1"><a href="gen_server.html#Module:init-1">Module:init/1</a></li>
<li title="Module:handle_call-3"><a href="gen_server.html#Module:handle_call-3">Module:handle_call/3</a></li>
<li title="Module:handle_cast-2"><a href="gen_server.html#Module:handle_cast-2">Module:handle_cast/2</a></li>
<li title="Module:handle_info-2"><a href="gen_server.html#Module:handle_info-2">Module:handle_info/2</a></li>
<li title="Module:terminate-2"><a href="gen_server.html#Module:terminate-2">Module:terminate/2</a></li>
<li title="Module:code_change-3"><a href="gen_server.html#Module:code_change-3">Module:code_change/3</a></li>
<li title="Module:format_status-2"><a href="gen_server.html#Module:format_status-2">Module:format_status/2</a></li>
</ul>
</li>
<li id="loadscrollpos" title="io " expanded="true">io<ul>
<li><a href="io.html">
Top of manual page
</a></li>
<li title="columns-0"><a href="io.html#columns-0">columns/0</a></li>
<li title="columns-1"><a href="io.html#columns-1">columns/1</a></li>
<li title="put_chars-1"><a href="io.html#put_chars-1">put_chars/1</a></li>
<li title="put_chars-2"><a href="io.html#put_chars-2">put_chars/2</a></li>
<li title="nl-0"><a href="io.html#nl-0">nl/0</a></li>
<li title="nl-1"><a href="io.html#nl-1">nl/1</a></li>
<li title="get_chars-2"><a href="io.html#get_chars-2">get_chars/2</a></li>
<li title="get_chars-3"><a href="io.html#get_chars-3">get_chars/3</a></li>
<li title="get_line-1"><a href="io.html#get_line-1">get_line/1</a></li>
<li title="get_line-2"><a href="io.html#get_line-2">get_line/2</a></li>
<li title="getopts-0"><a href="io.html#getopts-0">getopts/0</a></li>
<li title="getopts-1"><a href="io.html#getopts-1">getopts/1</a></li>
<li title="setopts-1"><a href="io.html#setopts-1">setopts/1</a></li>
<li title="setopts-2"><a href="io.html#setopts-2">setopts/2</a></li>
<li title="write-1"><a href="io.html#write-1">write/1</a></li>
<li title="write-2"><a href="io.html#write-2">write/2</a></li>
<li title="read-1"><a href="io.html#read-1">read/1</a></li>
<li title="read-2"><a href="io.html#read-2">read/2</a></li>
<li title="read-3"><a href="io.html#read-3">read/3</a></li>
<li title="fwrite-1"><a href="io.html#fwrite-1">fwrite/1</a></li>
<li title="fwrite-2"><a href="io.html#fwrite-2">fwrite/2</a></li>
<li title="fwrite-3"><a href="io.html#fwrite-3">fwrite/3</a></li>
<li title="format-1"><a href="io.html#format-1">format/1</a></li>
<li title="format-2"><a href="io.html#format-2">format/2</a></li>
<li title="format-3"><a href="io.html#format-3">format/3</a></li>
<li title="fread-2"><a href="io.html#fread-2">fread/2</a></li>
<li title="fread-3"><a href="io.html#fread-3">fread/3</a></li>
<li title="rows-0"><a href="io.html#rows-0">rows/0</a></li>
<li title="rows-1"><a href="io.html#rows-1">rows/1</a></li>
<li title="scan_erl_exprs-1"><a href="io.html#scan_erl_exprs-1">scan_erl_exprs/1</a></li>
<li title="scan_erl_exprs-2"><a href="io.html#scan_erl_exprs-2">scan_erl_exprs/2</a></li>
<li title="scan_erl_exprs-3"><a href="io.html#scan_erl_exprs-3">scan_erl_exprs/3</a></li>
<li title="scan_erl_form-1"><a href="io.html#scan_erl_form-1">scan_erl_form/1</a></li>
<li title="scan_erl_form-2"><a href="io.html#scan_erl_form-2">scan_erl_form/2</a></li>
<li title="scan_erl_form-3"><a href="io.html#scan_erl_form-3">scan_erl_form/3</a></li>
<li title="parse_erl_exprs-1"><a href="io.html#parse_erl_exprs-1">parse_erl_exprs/1</a></li>
<li title="parse_erl_exprs-2"><a href="io.html#parse_erl_exprs-2">parse_erl_exprs/2</a></li>
<li title="parse_erl_exprs-3"><a href="io.html#parse_erl_exprs-3">parse_erl_exprs/3</a></li>
<li title="parse_erl_form-1"><a href="io.html#parse_erl_form-1">parse_erl_form/1</a></li>
<li title="parse_erl_form-2"><a href="io.html#parse_erl_form-2">parse_erl_form/2</a></li>
<li title="parse_erl_form-3"><a href="io.html#parse_erl_form-3">parse_erl_form/3</a></li>
</ul>
</li>
<li id="no" title="io_lib " expanded="false">io_lib<ul>
<li><a href="io_lib.html">
Top of manual page
</a></li>
<li title="nl-0"><a href="io_lib.html#nl-0">nl/0</a></li>
<li title="write-1"><a href="io_lib.html#write-1">write/1</a></li>
<li title="write-2"><a href="io_lib.html#write-2">write/2</a></li>
<li title="print-1"><a href="io_lib.html#print-1">print/1</a></li>
<li title="print-4"><a href="io_lib.html#print-4">print/4</a></li>
<li title="fwrite-2"><a href="io_lib.html#fwrite-2">fwrite/2</a></li>
<li title="format-2"><a href="io_lib.html#format-2">format/2</a></li>
<li title="fread-2"><a href="io_lib.html#fread-2">fread/2</a></li>
<li title="fread-3"><a href="io_lib.html#fread-3">fread/3</a></li>
<li title="write_atom-1"><a href="io_lib.html#write_atom-1">write_atom/1</a></li>
<li title="write_string-1"><a href="io_lib.html#write_string-1">write_string/1</a></li>
<li title="write_char-1"><a href="io_lib.html#write_char-1">write_char/1</a></li>
<li title="indentation-2"><a href="io_lib.html#indentation-2">indentation/2</a></li>
<li title="char_list-1"><a href="io_lib.html#char_list-1">char_list/1</a></li>
<li title="deep_char_list-1"><a href="io_lib.html#deep_char_list-1">deep_char_list/1</a></li>
<li title="printable_list-1"><a href="io_lib.html#printable_list-1">printable_list/1</a></li>
</ul>
</li>
<li id="no" title="lib " expanded="false">lib<ul>
<li><a href="lib.html">
Top of manual page
</a></li>
<li title="flush_receive-0"><a href="lib.html#flush_receive-0">flush_receive/0</a></li>
<li title="error_message-2"><a href="lib.html#error_message-2">error_message/2</a></li>
<li title="progname-0"><a href="lib.html#progname-0">progname/0</a></li>
<li title="nonl-1"><a href="lib.html#nonl-1">nonl/1</a></li>
<li title="send-2"><a href="lib.html#send-2">send/2</a></li>
<li title="sendw-2"><a href="lib.html#sendw-2">sendw/2</a></li>
</ul>
</li>
<li id="no" title="lists " expanded="false">lists<ul>
<li><a href="lists.html">
Top of manual page
</a></li>
<li title="all-2"><a href="lists.html#all-2">all/2</a></li>
<li title="any-2"><a href="lists.html#any-2">any/2</a></li>
<li title="append-1"><a href="lists.html#append-1">append/1</a></li>
<li title="append-2"><a href="lists.html#append-2">append/2</a></li>
<li title="concat-1"><a href="lists.html#concat-1">concat/1</a></li>
<li title="delete-2"><a href="lists.html#delete-2">delete/2</a></li>
<li title="dropwhile-2"><a href="lists.html#dropwhile-2">dropwhile/2</a></li>
<li title="duplicate-2"><a href="lists.html#duplicate-2">duplicate/2</a></li>
<li title="filter-2"><a href="lists.html#filter-2">filter/2</a></li>
<li title="flatlength-1"><a href="lists.html#flatlength-1">flatlength/1</a></li>
<li title="flatmap-2"><a href="lists.html#flatmap-2">flatmap/2</a></li>
<li title="flatten-1"><a href="lists.html#flatten-1">flatten/1</a></li>
<li title="flatten-2"><a href="lists.html#flatten-2">flatten/2</a></li>
<li title="foldl-3"><a href="lists.html#foldl-3">foldl/3</a></li>
<li title="foldr-3"><a href="lists.html#foldr-3">foldr/3</a></li>
<li title="foreach-2"><a href="lists.html#foreach-2">foreach/2</a></li>
<li title="keydelete-3"><a href="lists.html#keydelete-3">keydelete/3</a></li>
<li title="keyfind-3"><a href="lists.html#keyfind-3">keyfind/3</a></li>
<li title="keymap-3"><a href="lists.html#keymap-3">keymap/3</a></li>
<li title="keymember-3"><a href="lists.html#keymember-3">keymember/3</a></li>
<li title="keymerge-3"><a href="lists.html#keymerge-3">keymerge/3</a></li>
<li title="keyreplace-4"><a href="lists.html#keyreplace-4">keyreplace/4</a></li>
<li title="keysearch-3"><a href="lists.html#keysearch-3">keysearch/3</a></li>
<li title="keysort-2"><a href="lists.html#keysort-2">keysort/2</a></li>
<li title="keystore-4"><a href="lists.html#keystore-4">keystore/4</a></li>
<li title="keytake-3"><a href="lists.html#keytake-3">keytake/3</a></li>
<li title="last-1"><a href="lists.html#last-1">last/1</a></li>
<li title="map-2"><a href="lists.html#map-2">map/2</a></li>
<li title="mapfoldl-3"><a href="lists.html#mapfoldl-3">mapfoldl/3</a></li>
<li title="mapfoldr-3"><a href="lists.html#mapfoldr-3">mapfoldr/3</a></li>
<li title="max-1"><a href="lists.html#max-1">max/1</a></li>
<li title="member-2"><a href="lists.html#member-2">member/2</a></li>
<li title="merge-1"><a href="lists.html#merge-1">merge/1</a></li>
<li title="merge-2"><a href="lists.html#merge-2">merge/2</a></li>
<li title="merge-3"><a href="lists.html#merge-3">merge/3</a></li>
<li title="merge3-3"><a href="lists.html#merge3-3">merge3/3</a></li>
<li title="min-1"><a href="lists.html#min-1">min/1</a></li>
<li title="nth-2"><a href="lists.html#nth-2">nth/2</a></li>
<li title="nthtail-2"><a href="lists.html#nthtail-2">nthtail/2</a></li>
<li title="partition-2"><a href="lists.html#partition-2">partition/2</a></li>
<li title="prefix-2"><a href="lists.html#prefix-2">prefix/2</a></li>
<li title="reverse-1"><a href="lists.html#reverse-1">reverse/1</a></li>
<li title="reverse-2"><a href="lists.html#reverse-2">reverse/2</a></li>
<li title="seq-2"><a href="lists.html#seq-2">seq/2</a></li>
<li title="seq-3"><a href="lists.html#seq-3">seq/3</a></li>
<li title="sort-1"><a href="lists.html#sort-1">sort/1</a></li>
<li title="sort-2"><a href="lists.html#sort-2">sort/2</a></li>
<li title="split-2"><a href="lists.html#split-2">split/2</a></li>
<li title="splitwith-2"><a href="lists.html#splitwith-2">splitwith/2</a></li>
<li title="sublist-2"><a href="lists.html#sublist-2">sublist/2</a></li>
<li title="sublist-3"><a href="lists.html#sublist-3">sublist/3</a></li>
<li title="subtract-2"><a href="lists.html#subtract-2">subtract/2</a></li>
<li title="suffix-2"><a href="lists.html#suffix-2">suffix/2</a></li>
<li title="sum-1"><a href="lists.html#sum-1">sum/1</a></li>
<li title="takewhile-2"><a href="lists.html#takewhile-2">takewhile/2</a></li>
<li title="ukeymerge-3"><a href="lists.html#ukeymerge-3">ukeymerge/3</a></li>
<li title="ukeysort-2"><a href="lists.html#ukeysort-2">ukeysort/2</a></li>
<li title="umerge-1"><a href="lists.html#umerge-1">umerge/1</a></li>
<li title="umerge-2"><a href="lists.html#umerge-2">umerge/2</a></li>
<li title="umerge-3"><a href="lists.html#umerge-3">umerge/3</a></li>
<li title="umerge3-3"><a href="lists.html#umerge3-3">umerge3/3</a></li>
<li title="unzip-1"><a href="lists.html#unzip-1">unzip/1</a></li>
<li title="unzip3-1"><a href="lists.html#unzip3-1">unzip3/1</a></li>
<li title="usort-1"><a href="lists.html#usort-1">usort/1</a></li>
<li title="usort-2"><a href="lists.html#usort-2">usort/2</a></li>
<li title="zip-2"><a href="lists.html#zip-2">zip/2</a></li>
<li title="zip3-3"><a href="lists.html#zip3-3">zip3/3</a></li>
<li title="zipwith-3"><a href="lists.html#zipwith-3">zipwith/3</a></li>
<li title="zipwith3-4"><a href="lists.html#zipwith3-4">zipwith3/4</a></li>
</ul>
</li>
<li id="no" title="log_mf_h " expanded="false">log_mf_h<ul>
<li><a href="log_mf_h.html">
Top of manual page
</a></li>
<li title="init-3"><a href="log_mf_h.html#init-3">init/3</a></li>
<li title="init-4"><a href="log_mf_h.html#init-4">init/4</a></li>
</ul>
</li>
<li id="no" title="math " expanded="false">math<ul>
<li><a href="math.html">
Top of manual page
</a></li>
<li title="pi-0"><a href="math.html#pi-0">pi/0</a></li>
<li title="sin-1"><a href="math.html#sin-1">sin/1</a></li>
<li title="cos-1"><a href="math.html#cos-1">cos/1</a></li>
<li title="tan-1"><a href="math.html#tan-1">tan/1</a></li>
<li title="asin-1"><a href="math.html#asin-1">asin/1</a></li>
<li title="acos-1"><a href="math.html#acos-1">acos/1</a></li>
<li title="atan-1"><a href="math.html#atan-1">atan/1</a></li>
<li title="atan2-2"><a href="math.html#atan2-2">atan2/2</a></li>
<li title="sinh-1"><a href="math.html#sinh-1">sinh/1</a></li>
<li title="cosh-1"><a href="math.html#cosh-1">cosh/1</a></li>
<li title="tanh-1"><a href="math.html#tanh-1">tanh/1</a></li>
<li title="asinh-1"><a href="math.html#asinh-1">asinh/1</a></li>
<li title="acosh-1"><a href="math.html#acosh-1">acosh/1</a></li>
<li title="atanh-1"><a href="math.html#atanh-1">atanh/1</a></li>
<li title="exp-1"><a href="math.html#exp-1">exp/1</a></li>
<li title="log-1"><a href="math.html#log-1">log/1</a></li>
<li title="log10-1"><a href="math.html#log10-1">log10/1</a></li>
<li title="pow-2"><a href="math.html#pow-2">pow/2</a></li>
<li title="sqrt-1"><a href="math.html#sqrt-1">sqrt/1</a></li>
<li title="erf-1"><a href="math.html#erf-1">erf/1</a></li>
<li title="erfc-1"><a href="math.html#erfc-1">erfc/1</a></li>
</ul>
</li>
<li id="no" title="ms_transform " expanded="false">ms_transform<ul>
<li><a href="ms_transform.html">
Top of manual page
</a></li>
<li title="parse_transform-2"><a href="ms_transform.html#parse_transform-2">parse_transform/2</a></li>
<li title="transform_from_shell-3"><a href="ms_transform.html#transform_from_shell-3">transform_from_shell/3</a></li>
<li title="format_error-1"><a href="ms_transform.html#format_error-1">format_error/1</a></li>
</ul>
</li>
<li id="no" title="orddict " expanded="false">orddict<ul>
<li><a href="orddict.html">
Top of manual page
</a></li>
<li title="append-3"><a href="orddict.html#append-3">append/3</a></li>
<li title="append_list-3"><a href="orddict.html#append_list-3">append_list/3</a></li>
<li title="erase-2"><a href="orddict.html#erase-2">erase/2</a></li>
<li title="fetch-2"><a href="orddict.html#fetch-2">fetch/2</a></li>
<li title="fetch_keys-1"><a href="orddict.html#fetch_keys-1">fetch_keys/1</a></li>
<li title="filter-2"><a href="orddict.html#filter-2">filter/2</a></li>
<li title="find-2"><a href="orddict.html#find-2">find/2</a></li>
<li title="fold-3"><a href="orddict.html#fold-3">fold/3</a></li>
<li title="from_list-1"><a href="orddict.html#from_list-1">from_list/1</a></li>
<li title="is_key-2"><a href="orddict.html#is_key-2">is_key/2</a></li>
<li title="map-2"><a href="orddict.html#map-2">map/2</a></li>
<li title="merge-3"><a href="orddict.html#merge-3">merge/3</a></li>
<li title="new-0"><a href="orddict.html#new-0">new/0</a></li>
<li title="size-1"><a href="orddict.html#size-1">size/1</a></li>
<li title="store-3"><a href="orddict.html#store-3">store/3</a></li>
<li title="to_list-1"><a href="orddict.html#to_list-1">to_list/1</a></li>
<li title="update-3"><a href="orddict.html#update-3">update/3</a></li>
<li title="update-4"><a href="orddict.html#update-4">update/4</a></li>
<li title="update_counter-3"><a href="orddict.html#update_counter-3">update_counter/3</a></li>
</ul>
</li>
<li id="no" title="ordsets " expanded="false">ordsets<ul>
<li><a href="ordsets.html">
Top of manual page
</a></li>
<li title="new-0"><a href="ordsets.html#new-0">new/0</a></li>
<li title="is_set-1"><a href="ordsets.html#is_set-1">is_set/1</a></li>
<li title="size-1"><a href="ordsets.html#size-1">size/1</a></li>
<li title="to_list-1"><a href="ordsets.html#to_list-1">to_list/1</a></li>
<li title="from_list-1"><a href="ordsets.html#from_list-1">from_list/1</a></li>
<li title="is_element-2"><a href="ordsets.html#is_element-2">is_element/2</a></li>
<li title="add_element-2"><a href="ordsets.html#add_element-2">add_element/2</a></li>
<li title="del_element-2"><a href="ordsets.html#del_element-2">del_element/2</a></li>
<li title="union-2"><a href="ordsets.html#union-2">union/2</a></li>
<li title="union-1"><a href="ordsets.html#union-1">union/1</a></li>
<li title="intersection-2"><a href="ordsets.html#intersection-2">intersection/2</a></li>
<li title="intersection-1"><a href="ordsets.html#intersection-1">intersection/1</a></li>
<li title="is_disjoint-2"><a href="ordsets.html#is_disjoint-2">is_disjoint/2</a></li>
<li title="subtract-2"><a href="ordsets.html#subtract-2">subtract/2</a></li>
<li title="is_subset-2"><a href="ordsets.html#is_subset-2">is_subset/2</a></li>
<li title="fold-3"><a href="ordsets.html#fold-3">fold/3</a></li>
<li title="filter-2"><a href="ordsets.html#filter-2">filter/2</a></li>
</ul>
</li>
<li id="no" title="pg " expanded="false">pg<ul>
<li><a href="pg.html">
Top of manual page
</a></li>
<li title="create-1"><a href="pg.html#create-1">create/1</a></li>
<li title="create-2"><a href="pg.html#create-2">create/2</a></li>
<li title="join-2"><a href="pg.html#join-2">join/2</a></li>
<li title="send-2"><a href="pg.html#send-2">send/2</a></li>
<li title="esend-2"><a href="pg.html#esend-2">esend/2</a></li>
<li title="members-1"><a href="pg.html#members-1">members/1</a></li>
</ul>
</li>
<li id="no" title="pool " expanded="false">pool<ul>
<li><a href="pool.html">
Top of manual page
</a></li>
<li title="start-1"><a href="pool.html#start-1">start/1</a></li>
<li title="start-2"><a href="pool.html#start-2">start/2</a></li>
<li title="attach-1"><a href="pool.html#attach-1">attach/1</a></li>
<li title="stop-0"><a href="pool.html#stop-0">stop/0</a></li>
<li title="get_nodes-0"><a href="pool.html#get_nodes-0">get_nodes/0</a></li>
<li title="pspawn-3"><a href="pool.html#pspawn-3">pspawn/3</a></li>
<li title="pspawn_link-3"><a href="pool.html#pspawn_link-3">pspawn_link/3</a></li>
<li title="get_node-0"><a href="pool.html#get_node-0">get_node/0</a></li>
</ul>
</li>
<li id="no" title="proc_lib " expanded="false">proc_lib<ul>
<li><a href="proc_lib.html">
Top of manual page
</a></li>
<li title="spawn-1"><a href="proc_lib.html#spawn-1">spawn/1</a></li>
<li title="spawn-2"><a href="proc_lib.html#spawn-2">spawn/2</a></li>
<li title="spawn-3"><a href="proc_lib.html#spawn-3">spawn/3</a></li>
<li title="spawn-4"><a href="proc_lib.html#spawn-4">spawn/4</a></li>
<li title="spawn_link-1"><a href="proc_lib.html#spawn_link-1">spawn_link/1</a></li>
<li title="spawn_link-2"><a href="proc_lib.html#spawn_link-2">spawn_link/2</a></li>
<li title="spawn_link-3"><a href="proc_lib.html#spawn_link-3">spawn_link/3</a></li>
<li title="spawn_link-4"><a href="proc_lib.html#spawn_link-4">spawn_link/4</a></li>
<li title="spawn_opt-2"><a href="proc_lib.html#spawn_opt-2">spawn_opt/2</a></li>
<li title="spawn_opt-3"><a href="proc_lib.html#spawn_opt-3">spawn_opt/3</a></li>
<li title="spawn_opt-4"><a href="proc_lib.html#spawn_opt-4">spawn_opt/4</a></li>
<li title="spawn_opt-5"><a href="proc_lib.html#spawn_opt-5">spawn_opt/5</a></li>
<li title="start-3"><a href="proc_lib.html#start-3">start/3</a></li>
<li title="start-4"><a href="proc_lib.html#start-4">start/4</a></li>
<li title="start-5"><a href="proc_lib.html#start-5">start/5</a></li>
<li title="start_link-3"><a href="proc_lib.html#start_link-3">start_link/3</a></li>
<li title="start_link-4"><a href="proc_lib.html#start_link-4">start_link/4</a></li>
<li title="start_link-5"><a href="proc_lib.html#start_link-5">start_link/5</a></li>
<li title="init_ack-1"><a href="proc_lib.html#init_ack-1">init_ack/1</a></li>
<li title="init_ack-2"><a href="proc_lib.html#init_ack-2">init_ack/2</a></li>
<li title="format-1"><a href="proc_lib.html#format-1">format/1</a></li>
<li title="initial_call-1"><a href="proc_lib.html#initial_call-1">initial_call/1</a></li>
<li title="translate_initial_call-1"><a href="proc_lib.html#translate_initial_call-1">translate_initial_call/1</a></li>
<li title="hibernate-3"><a href="proc_lib.html#hibernate-3">hibernate/3</a></li>
</ul>
</li>
<li id="no" title="proplists " expanded="false">proplists<ul>
<li><a href="proplists.html">
Top of manual page
</a></li>
<li title="append_values-2"><a href="proplists.html#append_values-2">append_values/2</a></li>
<li title="compact-1"><a href="proplists.html#compact-1">compact/1</a></li>
<li title="delete-2"><a href="proplists.html#delete-2">delete/2</a></li>
<li title="expand-2"><a href="proplists.html#expand-2">expand/2</a></li>
<li title="get_all_values-2"><a href="proplists.html#get_all_values-2">get_all_values/2</a></li>
<li title="get_bool-2"><a href="proplists.html#get_bool-2">get_bool/2</a></li>
<li title="get_keys-1"><a href="proplists.html#get_keys-1">get_keys/1</a></li>
<li title="get_value-2"><a href="proplists.html#get_value-2">get_value/2</a></li>
<li title="get_value-3"><a href="proplists.html#get_value-3">get_value/3</a></li>
<li title="is_defined-2"><a href="proplists.html#is_defined-2">is_defined/2</a></li>
<li title="lookup-2"><a href="proplists.html#lookup-2">lookup/2</a></li>
<li title="lookup_all-2"><a href="proplists.html#lookup_all-2">lookup_all/2</a></li>
<li title="normalize-2"><a href="proplists.html#normalize-2">normalize/2</a></li>
<li title="property-1"><a href="proplists.html#property-1">property/1</a></li>
<li title="property-2"><a href="proplists.html#property-2">property/2</a></li>
<li title="split-2"><a href="proplists.html#split-2">split/2</a></li>
<li title="substitute_aliases-2"><a href="proplists.html#substitute_aliases-2">substitute_aliases/2</a></li>
<li title="substitute_negations-2"><a href="proplists.html#substitute_negations-2">substitute_negations/2</a></li>
<li title="unfold-1"><a href="proplists.html#unfold-1">unfold/1</a></li>
</ul>
</li>
<li id="no" title="qlc " expanded="false">qlc<ul>
<li><a href="qlc.html">
Top of manual page
</a></li>
<li title="append-1"><a href="qlc.html#append-1">append/1</a></li>
<li title="append-2"><a href="qlc.html#append-2">append/2</a></li>
<li title="cursor-1"><a href="qlc.html#cursor-1">cursor/1</a></li>
<li title="cursor-2"><a href="qlc.html#cursor-2">cursor/2</a></li>
<li title="delete_cursor-1"><a href="qlc.html#delete_cursor-1">delete_cursor/1</a></li>
<li title="eval-1"><a href="qlc.html#eval-1">eval/1</a></li>
<li title="eval-2"><a href="qlc.html#eval-2">eval/2</a></li>
<li title="e-1"><a href="qlc.html#e-1">e/1</a></li>
<li title="e-2"><a href="qlc.html#e-2">e/2</a></li>
<li title="fold-3"><a href="qlc.html#fold-3">fold/3</a></li>
<li title="fold-4"><a href="qlc.html#fold-4">fold/4</a></li>
<li title="format_error-1"><a href="qlc.html#format_error-1">format_error/1</a></li>
<li title="info-1"><a href="qlc.html#info-1">info/1</a></li>
<li title="info-2"><a href="qlc.html#info-2">info/2</a></li>
<li title="keysort-2"><a href="qlc.html#keysort-2">keysort/2</a></li>
<li title="keysort-3"><a href="qlc.html#keysort-3">keysort/3</a></li>
<li title="next_answers-1"><a href="qlc.html#next_answers-1">next_answers/1</a></li>
<li title="next_answers-2"><a href="qlc.html#next_answers-2">next_answers/2</a></li>
<li title="q-1"><a href="qlc.html#q-1">q/1</a></li>
<li title="q-2"><a href="qlc.html#q-2">q/2</a></li>
<li title="sort-1"><a href="qlc.html#sort-1">sort/1</a></li>
<li title="sort-2"><a href="qlc.html#sort-2">sort/2</a></li>
<li title="string_to_handle-1"><a href="qlc.html#string_to_handle-1">string_to_handle/1</a></li>
<li title="string_to_handle-2"><a href="qlc.html#string_to_handle-2">string_to_handle/2</a></li>
<li title="string_to_handle-3"><a href="qlc.html#string_to_handle-3">string_to_handle/3</a></li>
<li title="table-2"><a href="qlc.html#table-2">table/2</a></li>
</ul>
</li>
<li id="no" title="queue " expanded="false">queue<ul>
<li><a href="queue.html">
Top of manual page
</a></li>
<li title="new-0"><a href="queue.html#new-0">new/0</a></li>
<li title="is_queue-1"><a href="queue.html#is_queue-1">is_queue/1</a></li>
<li title="is_empty-1"><a href="queue.html#is_empty-1">is_empty/1</a></li>
<li title="len-1"><a href="queue.html#len-1">len/1</a></li>
<li title="in-2"><a href="queue.html#in-2">in/2</a></li>
<li title="in_r-2"><a href="queue.html#in_r-2">in_r/2</a></li>
<li title="out-1"><a href="queue.html#out-1">out/1</a></li>
<li title="out_r-1"><a href="queue.html#out_r-1">out_r/1</a></li>
<li title="from_list-1"><a href="queue.html#from_list-1">from_list/1</a></li>
<li title="to_list-1"><a href="queue.html#to_list-1">to_list/1</a></li>
<li title="reverse-1"><a href="queue.html#reverse-1">reverse/1</a></li>
<li title="split-2"><a href="queue.html#split-2">split/2</a></li>
<li title="join-2"><a href="queue.html#join-2">join/2</a></li>
<li title="filter-2"><a href="queue.html#filter-2">filter/2</a></li>
<li title="member-2"><a href="queue.html#member-2">member/2</a></li>
<li title="get-1"><a href="queue.html#get-1">get/1</a></li>
<li title="get_r-1"><a href="queue.html#get_r-1">get_r/1</a></li>
<li title="drop-1"><a href="queue.html#drop-1">drop/1</a></li>
<li title="drop_r-1"><a href="queue.html#drop_r-1">drop_r/1</a></li>
<li title="peek-1"><a href="queue.html#peek-1">peek/1</a></li>
<li title="peek_r-1"><a href="queue.html#peek_r-1">peek_r/1</a></li>
<li title="cons-2"><a href="queue.html#cons-2">cons/2</a></li>
<li title="head-1"><a href="queue.html#head-1">head/1</a></li>
<li title="tail-1"><a href="queue.html#tail-1">tail/1</a></li>
<li title="snoc-2"><a href="queue.html#snoc-2">snoc/2</a></li>
<li title="daeh-1"><a href="queue.html#daeh-1">daeh/1</a></li>
<li title="last-1"><a href="queue.html#last-1">last/1</a></li>
<li title="liat-1"><a href="queue.html#liat-1">liat/1</a></li>
<li title="init-1"><a href="queue.html#init-1">init/1</a></li>
<li title="lait-1"><a href="queue.html#lait-1">lait/1</a></li>
</ul>
</li>
<li id="no" title="random " expanded="false">random<ul>
<li><a href="random.html">
Top of manual page
</a></li>
<li title="seed-0"><a href="random.html#seed-0">seed/0</a></li>
<li title="seed-3"><a href="random.html#seed-3">seed/3</a></li>
<li title="seed-1"><a href="random.html#seed-1">seed/1</a></li>
<li title="seed0-0"><a href="random.html#seed0-0">seed0/0</a></li>
<li title="uniform-0"><a href="random.html#uniform-0">uniform/0</a></li>
<li title="uniform-1"><a href="random.html#uniform-1">uniform/1</a></li>
<li title="uniform_s-1"><a href="random.html#uniform_s-1">uniform_s/1</a></li>
<li title="uniform_s-2"><a href="random.html#uniform_s-2">uniform_s/2</a></li>
</ul>
</li>
<li id="no" title="re " expanded="false">re<ul>
<li><a href="re.html">
Top of manual page
</a></li>
<li title="compile-1"><a href="re.html#compile-1">compile/1</a></li>
<li title="compile-2"><a href="re.html#compile-2">compile/2</a></li>
<li title="run-2"><a href="re.html#run-2">run/2</a></li>
<li title="run-3"><a href="re.html#run-3">run/3</a></li>
<li title="replace-3"><a href="re.html#replace-3">replace/3</a></li>
<li title="replace-4"><a href="re.html#replace-4">replace/4</a></li>
<li title="split-2"><a href="re.html#split-2">split/2</a></li>
<li title="split-3"><a href="re.html#split-3">split/3</a></li>
</ul>
</li>
<li id="no" title="sets " expanded="false">sets<ul>
<li><a href="sets.html">
Top of manual page
</a></li>
<li title="new-0"><a href="sets.html#new-0">new/0</a></li>
<li title="is_set-1"><a href="sets.html#is_set-1">is_set/1</a></li>
<li title="size-1"><a href="sets.html#size-1">size/1</a></li>
<li title="to_list-1"><a href="sets.html#to_list-1">to_list/1</a></li>
<li title="from_list-1"><a href="sets.html#from_list-1">from_list/1</a></li>
<li title="is_element-2"><a href="sets.html#is_element-2">is_element/2</a></li>
<li title="add_element-2"><a href="sets.html#add_element-2">add_element/2</a></li>
<li title="del_element-2"><a href="sets.html#del_element-2">del_element/2</a></li>
<li title="union-2"><a href="sets.html#union-2">union/2</a></li>
<li title="union-1"><a href="sets.html#union-1">union/1</a></li>
<li title="intersection-2"><a href="sets.html#intersection-2">intersection/2</a></li>
<li title="intersection-1"><a href="sets.html#intersection-1">intersection/1</a></li>
<li title="is_disjoint-2"><a href="sets.html#is_disjoint-2">is_disjoint/2</a></li>
<li title="subtract-2"><a href="sets.html#subtract-2">subtract/2</a></li>
<li title="is_subset-2"><a href="sets.html#is_subset-2">is_subset/2</a></li>
<li title="fold-3"><a href="sets.html#fold-3">fold/3</a></li>
<li title="filter-2"><a href="sets.html#filter-2">filter/2</a></li>
</ul>
</li>
<li id="no" title="shell " expanded="false">shell<ul>
<li><a href="shell.html">
Top of manual page
</a></li>
<li title="history-1"><a href="shell.html#history-1">history/1</a></li>
<li title="results-1"><a href="shell.html#results-1">results/1</a></li>
<li title="catch_exception-1"><a href="shell.html#catch_exception-1">catch_exception/1</a></li>
<li title="prompt_func-1"><a href="shell.html#prompt_func-1">prompt_func/1</a></li>
<li title="start_restricted-1"><a href="shell.html#start_restricted-1">start_restricted/1</a></li>
<li title="stop_restricted-0"><a href="shell.html#stop_restricted-0">stop_restricted/0</a></li>
</ul>
</li>
<li title="shell_default"><a href="shell_default.html">shell_default</a></li>
<li id="no" title="slave " expanded="false">slave<ul>
<li><a href="slave.html">
Top of manual page
</a></li>
<li title="start-1"><a href="slave.html#start-1">start/1</a></li>
<li title="start-2"><a href="slave.html#start-2">start/2</a></li>
<li title="start-3"><a href="slave.html#start-3">start/3</a></li>
<li title="start_link-1"><a href="slave.html#start_link-1">start_link/1</a></li>
<li title="start_link-2"><a href="slave.html#start_link-2">start_link/2</a></li>
<li title="start_link-3"><a href="slave.html#start_link-3">start_link/3</a></li>
<li title="stop-1"><a href="slave.html#stop-1">stop/1</a></li>
<li title="pseudo-1"><a href="slave.html#pseudo-1">pseudo/1</a></li>
<li title="pseudo-2"><a href="slave.html#pseudo-2">pseudo/2</a></li>
<li title="relay-1"><a href="slave.html#relay-1">relay/1</a></li>
</ul>
</li>
<li id="no" title="sofs " expanded="false">sofs<ul>
<li><a href="sofs.html">
Top of manual page
</a></li>
<li title="a_function-1"><a href="sofs.html#a_function-1">a_function/1</a></li>
<li title="a_function-2"><a href="sofs.html#a_function-2">a_function/2</a></li>
<li title="canonical_relation-1"><a href="sofs.html#canonical_relation-1">canonical_relation/1</a></li>
<li title="composite-2"><a href="sofs.html#composite-2">composite/2</a></li>
<li title="constant_function-2"><a href="sofs.html#constant_function-2">constant_function/2</a></li>
<li title="converse-1"><a href="sofs.html#converse-1">converse/1</a></li>
<li title="difference-2"><a href="sofs.html#difference-2">difference/2</a></li>
<li title="digraph_to_family-1"><a href="sofs.html#digraph_to_family-1">digraph_to_family/1</a></li>
<li title="digraph_to_family-2"><a href="sofs.html#digraph_to_family-2">digraph_to_family/2</a></li>
<li title="domain-1"><a href="sofs.html#domain-1">domain/1</a></li>
<li title="drestriction-2"><a href="sofs.html#drestriction-2">drestriction/2</a></li>
<li title="drestriction-3"><a href="sofs.html#drestriction-3">drestriction/3</a></li>
<li title="empty_set-0"><a href="sofs.html#empty_set-0">empty_set/0</a></li>
<li title="extension-3"><a href="sofs.html#extension-3">extension/3</a></li>
<li title="family-1"><a href="sofs.html#family-1">family/1</a></li>
<li title="family-2"><a href="sofs.html#family-2">family/2</a></li>
<li title="family_difference-2"><a href="sofs.html#family_difference-2">family_difference/2</a></li>
<li title="family_domain-1"><a href="sofs.html#family_domain-1">family_domain/1</a></li>
<li title="family_field-1"><a href="sofs.html#family_field-1">family_field/1</a></li>
<li title="family_intersection-1"><a href="sofs.html#family_intersection-1">family_intersection/1</a></li>
<li title="family_intersection-2"><a href="sofs.html#family_intersection-2">family_intersection/2</a></li>
<li title="family_projection-2"><a href="sofs.html#family_projection-2">family_projection/2</a></li>
<li title="family_range-1"><a href="sofs.html#family_range-1">family_range/1</a></li>
<li title="family_specification-2"><a href="sofs.html#family_specification-2">family_specification/2</a></li>
<li title="family_to_digraph-1"><a href="sofs.html#family_to_digraph-1">family_to_digraph/1</a></li>
<li title="family_to_digraph-2"><a href="sofs.html#family_to_digraph-2">family_to_digraph/2</a></li>
<li title="family_to_relation-1"><a href="sofs.html#family_to_relation-1">family_to_relation/1</a></li>
<li title="family_union-1"><a href="sofs.html#family_union-1">family_union/1</a></li>
<li title="family_union-2"><a href="sofs.html#family_union-2">family_union/2</a></li>
<li title="field-1"><a href="sofs.html#field-1">field/1</a></li>
<li title="from_external-2"><a href="sofs.html#from_external-2">from_external/2</a></li>
<li title="from_sets-1"><a href="sofs.html#from_sets-1">from_sets/1</a></li>
<li title="from_term-1"><a href="sofs.html#from_term-1">from_term/1</a></li>
<li title="from_term-2"><a href="sofs.html#from_term-2">from_term/2</a></li>
<li title="image-2"><a href="sofs.html#image-2">image/2</a></li>
<li title="intersection-1"><a href="sofs.html#intersection-1">intersection/1</a></li>
<li title="intersection-2"><a href="sofs.html#intersection-2">intersection/2</a></li>
<li title="intersection_of_family-1"><a href="sofs.html#intersection_of_family-1">intersection_of_family/1</a></li>
<li title="inverse-1"><a href="sofs.html#inverse-1">inverse/1</a></li>
<li title="inverse_image-2"><a href="sofs.html#inverse_image-2">inverse_image/2</a></li>
<li title="is_a_function-1"><a href="sofs.html#is_a_function-1">is_a_function/1</a></li>
<li title="is_disjoint-2"><a href="sofs.html#is_disjoint-2">is_disjoint/2</a></li>
<li title="is_empty_set-1"><a href="sofs.html#is_empty_set-1">is_empty_set/1</a></li>
<li title="is_equal-2"><a href="sofs.html#is_equal-2">is_equal/2</a></li>
<li title="is_set-1"><a href="sofs.html#is_set-1">is_set/1</a></li>
<li title="is_sofs_set-1"><a href="sofs.html#is_sofs_set-1">is_sofs_set/1</a></li>
<li title="is_subset-2"><a href="sofs.html#is_subset-2">is_subset/2</a></li>
<li title="is_type-1"><a href="sofs.html#is_type-1">is_type/1</a></li>
<li title="join-4"><a href="sofs.html#join-4">join/4</a></li>
<li title="multiple_relative_product-2"><a href="sofs.html#multiple_relative_product-2">multiple_relative_product/2</a></li>
<li title="no_elements-1"><a href="sofs.html#no_elements-1">no_elements/1</a></li>
<li title="partition-1"><a href="sofs.html#partition-1">partition/1</a></li>
<li title="partition-2"><a href="sofs.html#partition-2">partition/2</a></li>
<li title="partition-3"><a href="sofs.html#partition-3">partition/3</a></li>
<li title="partition_family-2"><a href="sofs.html#partition_family-2">partition_family/2</a></li>
<li title="product-1"><a href="sofs.html#product-1">product/1</a></li>
<li title="product-2"><a href="sofs.html#product-2">product/2</a></li>
<li title="projection-2"><a href="sofs.html#projection-2">projection/2</a></li>
<li title="range-1"><a href="sofs.html#range-1">range/1</a></li>
<li title="relation-1"><a href="sofs.html#relation-1">relation/1</a></li>
<li title="relation-2"><a href="sofs.html#relation-2">relation/2</a></li>
<li title="relation_to_family-1"><a href="sofs.html#relation_to_family-1">relation_to_family/1</a></li>
<li title="relative_product-1"><a href="sofs.html#relative_product-1">relative_product/1</a></li>
<li title="relative_product-2"><a href="sofs.html#relative_product-2">relative_product/2</a></li>
<li title="relative_product1-2"><a href="sofs.html#relative_product1-2">relative_product1/2</a></li>
<li title="restriction-2"><a href="sofs.html#restriction-2">restriction/2</a></li>
<li title="restriction-3"><a href="sofs.html#restriction-3">restriction/3</a></li>
<li title="set-1"><a href="sofs.html#set-1">set/1</a></li>
<li title="set-2"><a href="sofs.html#set-2">set/2</a></li>
<li title="specification-2"><a href="sofs.html#specification-2">specification/2</a></li>
<li title="strict_relation-1"><a href="sofs.html#strict_relation-1">strict_relation/1</a></li>
<li title="substitution-2"><a href="sofs.html#substitution-2">substitution/2</a></li>
<li title="symdiff-2"><a href="sofs.html#symdiff-2">symdiff/2</a></li>
<li title="symmetric_partition-2"><a href="sofs.html#symmetric_partition-2">symmetric_partition/2</a></li>
<li title="to_external-1"><a href="sofs.html#to_external-1">to_external/1</a></li>
<li title="to_sets-1"><a href="sofs.html#to_sets-1">to_sets/1</a></li>
<li title="type-1"><a href="sofs.html#type-1">type/1</a></li>
<li title="union-1"><a href="sofs.html#union-1">union/1</a></li>
<li title="union-2"><a href="sofs.html#union-2">union/2</a></li>
<li title="union_of_family-1"><a href="sofs.html#union_of_family-1">union_of_family/1</a></li>
<li title="weak_relation-1"><a href="sofs.html#weak_relation-1">weak_relation/1</a></li>
</ul>
</li>
<li id="no" title="string " expanded="false">string<ul>
<li><a href="string.html">
Top of manual page
</a></li>
<li title="len-1"><a href="string.html#len-1">len/1</a></li>
<li title="equal-2"><a href="string.html#equal-2">equal/2</a></li>
<li title="concat-2"><a href="string.html#concat-2">concat/2</a></li>
<li title="chr-2"><a href="string.html#chr-2">chr/2</a></li>
<li title="rchr-2"><a href="string.html#rchr-2">rchr/2</a></li>
<li title="str-2"><a href="string.html#str-2">str/2</a></li>
<li title="rstr-2"><a href="string.html#rstr-2">rstr/2</a></li>
<li title="span-2"><a href="string.html#span-2">span/2</a></li>
<li title="cspan-2"><a href="string.html#cspan-2">cspan/2</a></li>
<li title="substr-2"><a href="string.html#substr-2">substr/2</a></li>
<li title="substr-3"><a href="string.html#substr-3">substr/3</a></li>
<li title="tokens-2"><a href="string.html#tokens-2">tokens/2</a></li>
<li title="join-2"><a href="string.html#join-2">join/2</a></li>
<li title="chars-2"><a href="string.html#chars-2">chars/2</a></li>
<li title="chars-3"><a href="string.html#chars-3">chars/3</a></li>
<li title="copies-2"><a href="string.html#copies-2">copies/2</a></li>
<li title="words-1"><a href="string.html#words-1">words/1</a></li>
<li title="words-2"><a href="string.html#words-2">words/2</a></li>
<li title="sub_word-2"><a href="string.html#sub_word-2">sub_word/2</a></li>
<li title="sub_word-3"><a href="string.html#sub_word-3">sub_word/3</a></li>
<li title="strip-1"><a href="string.html#strip-1">strip/1</a></li>
<li title="strip-2"><a href="string.html#strip-2">strip/2</a></li>
<li title="strip-3"><a href="string.html#strip-3">strip/3</a></li>
<li title="left-2"><a href="string.html#left-2">left/2</a></li>
<li title="left-3"><a href="string.html#left-3">left/3</a></li>
<li title="right-2"><a href="string.html#right-2">right/2</a></li>
<li title="right-3"><a href="string.html#right-3">right/3</a></li>
<li title="centre-2"><a href="string.html#centre-2">centre/2</a></li>
<li title="centre-3"><a href="string.html#centre-3">centre/3</a></li>
<li title="sub_string-2"><a href="string.html#sub_string-2">sub_string/2</a></li>
<li title="sub_string-3"><a href="string.html#sub_string-3">sub_string/3</a></li>
<li title="to_float-1"><a href="string.html#to_float-1">to_float/1</a></li>
<li title="to_integer-1"><a href="string.html#to_integer-1">to_integer/1</a></li>
<li title="to_lower-1"><a href="string.html#to_lower-1">to_lower/1</a></li>
<li title="to_upper-1"><a href="string.html#to_upper-1">to_upper/1</a></li>
</ul>
</li>
<li id="no" title="supervisor " expanded="false">supervisor<ul>
<li><a href="supervisor.html">
Top of manual page
</a></li>
<li title="start_link-2"><a href="supervisor.html#start_link-2">start_link/2</a></li>
<li title="start_link-3"><a href="supervisor.html#start_link-3">start_link/3</a></li>
<li title="start_child-2"><a href="supervisor.html#start_child-2">start_child/2</a></li>
<li title="terminate_child-2"><a href="supervisor.html#terminate_child-2">terminate_child/2</a></li>
<li title="delete_child-2"><a href="supervisor.html#delete_child-2">delete_child/2</a></li>
<li title="restart_child-2"><a href="supervisor.html#restart_child-2">restart_child/2</a></li>
<li title="which_children-1"><a href="supervisor.html#which_children-1">which_children/1</a></li>
<li title="count_children-1"><a href="supervisor.html#count_children-1">count_children/1</a></li>
<li title="check_childspecs-1"><a href="supervisor.html#check_childspecs-1">check_childspecs/1</a></li>
<li title="Module:init-1"><a href="supervisor.html#Module:init-1">Module:init/1</a></li>
</ul>
</li>
<li id="no" title="supervisor_bridge " expanded="false">supervisor_bridge<ul>
<li><a href="supervisor_bridge.html">
Top of manual page
</a></li>
<li title="start_link-2"><a href="supervisor_bridge.html#start_link-2">start_link/2</a></li>
<li title="start_link-3"><a href="supervisor_bridge.html#start_link-3">start_link/3</a></li>
<li title="Module:init-1"><a href="supervisor_bridge.html#Module:init-1">Module:init/1</a></li>
<li title="Module:terminate-2"><a href="supervisor_bridge.html#Module:terminate-2">Module:terminate/2</a></li>
</ul>
</li>
<li id="no" title="sys " expanded="false">sys<ul>
<li><a href="sys.html">
Top of manual page
</a></li>
<li title="log-2"><a href="sys.html#log-2">log/2</a></li>
<li title="log-3"><a href="sys.html#log-3">log/3</a></li>
<li title="log_to_file-2"><a href="sys.html#log_to_file-2">log_to_file/2</a></li>
<li title="log_to_file-3"><a href="sys.html#log_to_file-3">log_to_file/3</a></li>
<li title="statistics-2"><a href="sys.html#statistics-2">statistics/2</a></li>
<li title="statistics-3"><a href="sys.html#statistics-3">statistics/3</a></li>
<li title="trace-2"><a href="sys.html#trace-2">trace/2</a></li>
<li title="trace-3"><a href="sys.html#trace-3">trace/3</a></li>
<li title="no_debug-1"><a href="sys.html#no_debug-1">no_debug/1</a></li>
<li title="no_debug-2"><a href="sys.html#no_debug-2">no_debug/2</a></li>
<li title="suspend-1"><a href="sys.html#suspend-1">suspend/1</a></li>
<li title="suspend-2"><a href="sys.html#suspend-2">suspend/2</a></li>
<li title="resume-1"><a href="sys.html#resume-1">resume/1</a></li>
<li title="resume-2"><a href="sys.html#resume-2">resume/2</a></li>
<li title="change_code-4"><a href="sys.html#change_code-4">change_code/4</a></li>
<li title="change_code-5"><a href="sys.html#change_code-5">change_code/5</a></li>
<li title="get_status-1"><a href="sys.html#get_status-1">get_status/1</a></li>
<li title="get_status-2"><a href="sys.html#get_status-2">get_status/2</a></li>
<li title="install-2"><a href="sys.html#install-2">install/2</a></li>
<li title="install-3"><a href="sys.html#install-3">install/3</a></li>
<li title="remove-2"><a href="sys.html#remove-2">remove/2</a></li>
<li title="remove-3"><a href="sys.html#remove-3">remove/3</a></li>
<li title="debug_options-1"><a href="sys.html#debug_options-1">debug_options/1</a></li>
<li title="get_debug-3"><a href="sys.html#get_debug-3">get_debug/3</a></li>
<li title="handle_debug-4"><a href="sys.html#handle_debug-4">handle_debug/4</a></li>
<li title="handle_system_msg-6"><a href="sys.html#handle_system_msg-6">handle_system_msg/6</a></li>
<li title="print_log-1"><a href="sys.html#print_log-1">print_log/1</a></li>
<li title="Mod:system_continue-3"><a href="sys.html#Mod:system_continue-3">Mod:system_continue/3</a></li>
<li title="Mod:system_terminate-4"><a href="sys.html#Mod:system_terminate-4">Mod:system_terminate/4</a></li>
<li title="Mod:system_code_change-4"><a href="sys.html#Mod:system_code_change-4">Mod:system_code_change/4</a></li>
</ul>
</li>
<li id="no" title="timer " expanded="false">timer<ul>
<li><a href="timer.html">
Top of manual page
</a></li>
<li title="start-0"><a href="timer.html#start-0">start/0</a></li>
<li title="apply_after-4"><a href="timer.html#apply_after-4">apply_after/4</a></li>
<li title="send_after-2"><a href="timer.html#send_after-2">send_after/2</a></li>
<li title="send_after-3"><a href="timer.html#send_after-3">send_after/3</a></li>
<li title="kill_after-1"><a href="timer.html#kill_after-1">kill_after/1</a></li>
<li title="kill_after-2"><a href="timer.html#kill_after-2">kill_after/2</a></li>
<li title="exit_after-2"><a href="timer.html#exit_after-2">exit_after/2</a></li>
<li title="exit_after-3"><a href="timer.html#exit_after-3">exit_after/3</a></li>
<li title="apply_interval-4"><a href="timer.html#apply_interval-4">apply_interval/4</a></li>
<li title="send_interval-2"><a href="timer.html#send_interval-2">send_interval/2</a></li>
<li title="send_interval-3"><a href="timer.html#send_interval-3">send_interval/3</a></li>
<li title="cancel-1"><a href="timer.html#cancel-1">cancel/1</a></li>
<li title="sleep-1"><a href="timer.html#sleep-1">sleep/1</a></li>
<li title="tc-1"><a href="timer.html#tc-1">tc/1</a></li>
<li title="tc-2"><a href="timer.html#tc-2">tc/2</a></li>
<li title="tc-3"><a href="timer.html#tc-3">tc/3</a></li>
<li title="now_diff-2"><a href="timer.html#now_diff-2">now_diff/2</a></li>
<li title="seconds-1"><a href="timer.html#seconds-1">seconds/1</a></li>
<li title="minutes-1"><a href="timer.html#minutes-1">minutes/1</a></li>
<li title="hours-1"><a href="timer.html#hours-1">hours/1</a></li>
<li title="hms-3"><a href="timer.html#hms-3">hms/3</a></li>
</ul>
</li>
<li id="no" title="unicode " expanded="false">unicode<ul>
<li><a href="unicode.html">
Top of manual page
</a></li>
<li title="bom_to_encoding-1"><a href="unicode.html#bom_to_encoding-1">bom_to_encoding/1</a></li>
<li title="characters_to_list-1"><a href="unicode.html#characters_to_list-1">characters_to_list/1</a></li>
<li title="characters_to_list-2"><a href="unicode.html#characters_to_list-2">characters_to_list/2</a></li>
<li title="characters_to_binary-1"><a href="unicode.html#characters_to_binary-1">characters_to_binary/1</a></li>
<li title="characters_to_binary-2"><a href="unicode.html#characters_to_binary-2">characters_to_binary/2</a></li>
<li title="characters_to_binary-3"><a href="unicode.html#characters_to_binary-3">characters_to_binary/3</a></li>
<li title="encoding_to_bom-1"><a href="unicode.html#encoding_to_bom-1">encoding_to_bom/1</a></li>
</ul>
</li>
<li id="no" title="win32reg " expanded="false">win32reg<ul>
<li><a href="win32reg.html">
Top of manual page
</a></li>
<li title="change_key-2"><a href="win32reg.html#change_key-2">change_key/2</a></li>
<li title="change_key_create-2"><a href="win32reg.html#change_key_create-2">change_key_create/2</a></li>
<li title="close-1"><a href="win32reg.html#close-1">close/1</a></li>
<li title="current_key-1"><a href="win32reg.html#current_key-1">current_key/1</a></li>
<li title="delete_key-1"><a href="win32reg.html#delete_key-1">delete_key/1</a></li>
<li title="delete_value-2"><a href="win32reg.html#delete_value-2">delete_value/2</a></li>
<li title="expand-1"><a href="win32reg.html#expand-1">expand/1</a></li>
<li title="format_error-1"><a href="win32reg.html#format_error-1">format_error/1</a></li>
<li title="open-1"><a href="win32reg.html#open-1">open/1</a></li>
<li title="set_value-3"><a href="win32reg.html#set_value-3">set_value/3</a></li>
<li title="sub_keys-1"><a href="win32reg.html#sub_keys-1">sub_keys/1</a></li>
<li title="value-2"><a href="win32reg.html#value-2">value/2</a></li>
<li title="values-1"><a href="win32reg.html#values-1">values/1</a></li>
</ul>
</li>
<li id="no" title="zip " expanded="false">zip<ul>
<li><a href="zip.html">
Top of manual page
</a></li>
<li title="zip-2"><a href="zip.html#zip-2">zip/2</a></li>
<li title="zip-3"><a href="zip.html#zip-3">zip/3</a></li>
<li title="create-2"><a href="zip.html#create-2">create/2</a></li>
<li title="create-3"><a href="zip.html#create-3">create/3</a></li>
<li title="unzip-1"><a href="zip.html#unzip-1">unzip/1</a></li>
<li title="unzip-2"><a href="zip.html#unzip-2">unzip/2</a></li>
<li title="extract-1"><a href="zip.html#extract-1">extract/1</a></li>
<li title="extract-2"><a href="zip.html#extract-2">extract/2</a></li>
<li title="foldl-3"><a href="zip.html#foldl-3">foldl/3</a></li>
<li title="list_dir-1"><a href="zip.html#list_dir-1">list_dir/1</a></li>
<li title="list_dir-2"><a href="zip.html#list_dir-2">list_dir/2</a></li>
<li title="table-1"><a href="zip.html#table-1">table/1</a></li>
<li title="table-2"><a href="zip.html#table-2">table/2</a></li>
<li title="t-1"><a href="zip.html#t-1">t/1</a></li>
<li title="tt-1"><a href="zip.html#tt-1">tt/1</a></li>
<li title="zip_open-1"><a href="zip.html#zip_open-1">zip_open/1</a></li>
<li title="zip_open-2"><a href="zip.html#zip_open-2">zip_open/2</a></li>
<li title="zip_list_dir-1"><a href="zip.html#zip_list_dir-1">zip_list_dir/1</a></li>
<li title="zip_get-1"><a href="zip.html#zip_get-1">zip_get/1</a></li>
<li title="zip_get-2"><a href="zip.html#zip_get-2">zip_get/2</a></li>
<li title="zip_close-1"><a href="zip.html#zip_close-1">zip_close/1</a></li>
</ul>
</li>
</ul>
</div></div>
<div id="content">
<div class="innertube">
<!-- refpage --><center><h1>io</h1></center>
<h3>MODULE</h3>
<div class="REFBODY">io</div>
<h3>MODULE SUMMARY</h3>
<div class="REFBODY">Standard IO Server Interface Functions</div>
<h3>DESCRIPTION</h3>
<div class="REFBODY"><p>
<p>This module provides an interface to standard Erlang IO servers.
The output functions all return <span class="code">ok</span> if they are successful,
or exit if they are not.</p>
<p>In the following description, all functions have an optional
parameter <span class="code">IoDevice</span>. If included, it must be the pid of a
process which handles the IO protocols. Normally, it is the
<span class="code">IoDevice</span> returned by
<span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','kernel','file.html#open-2');">file:open/2</a></span>.</p>
<p>For a description of the IO protocols refer to the STDLIB Users Guide.</p>
<div class="warning">
<div class="label">Warning</div>
<div class="content"><p>
<p>As of R13A, data supplied to the <span class="bold_code"><a href="#put_chars-2">put_chars</a></span> function should be in the
<span class="bold_code"><a href="unicode.html#type-chardata"><span class="code">unicode:chardata()</span></a></span> format. This means that programs
supplying binaries to this function need to convert them to UTF-8
before trying to output the data on an
<span class="code">io_device()</span>.</p>
<p>If an io_device() is set in binary mode, the functions <span class="bold_code"><a href="#get_chars-3">get_chars</a></span> and <span class="bold_code"><a href="#get_line-2">get_line</a></span> may return binaries
instead of lists. The binaries will, as of R13A, be encoded in
UTF-8.</p>
<p>To work with binaries in ISO-latin-1 encoding, use the <span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','kernel','file.html');">file</a></span> module instead.</p>
<p>For conversion functions between character encodings, see the <span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','stdlib','unicode.html');">unicode</a></span> module.</p>
</p></div>
</div>
</p></div>
<h3>DATA TYPES</h3>
<p>
<span class="bold_code"><a name="type-device">device()</a> = atom() | pid()</span><br></p>
<div class="REFBODY"><p>
<p>Either <span class="code">standard_io</span>, <span class="code">standard_error</span>, a
registered name, or a pid handling IO protocols (returned from
<span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','kernel','file.html#open-2');">file:open/2</a></span>).</p>
</p></div>
<p>
<span class="bold_code"><a name="type-opt_pair">opt_pair()</a> = {binary, boolean()}<br> | {echo, boolean()}<br> | {expand_fun, <span class="bold_code"><a href="#type-expand_fun">expand_fun()</a></span>}<br> | {encoding, <span class="bold_code"><a href="#type-encoding">encoding()</a></span>}</span><br></p>
<p>
<span class="bold_code"><a name="type-expand_fun">expand_fun()</a> = <br> fun((term()) -> {yes | no, string(), [string(), ...]})</span><br></p>
<p>
<span class="bold_code"><a name="type-encoding">encoding()</a> = latin1<br> | unicode<br> | utf8<br> | utf16<br> | utf32<br> | {utf16, big | little}<br> | {utf32, big | little}</span><br></p>
<p>
<span class="bold_code"><a name="type-setopt">setopt()</a> = binary | list | <span class="bold_code"><a href="#type-opt_pair">opt_pair()</a></span></span><br></p>
<p>
<span class="bold_code"><a name="type-format">format()</a> = atom() | string() | binary()</span><br></p>
<p>
<span class="bold_code"><a name="type-line">line()</a> = integer() >= 1</span><br></p>
<p>
<span class="bold_code"><a name="type-prompt">prompt()</a> = atom() | string()</span><br></p>
<p>
<span class="bold_code"><a name="type-request_error">request_error()</a> = {error, <span class="bold_code"><a href="#type-error_description">error_description()</a></span>}</span><br></p>
<p>
<span class="bold_code"><a name="type-error_description">error_description()</a> = term()</span><br></p>
<div class="REFBODY"><p><p>Whatever the I/O-server sends.</p></p></div>
<h3>EXPORTS</h3>
<p><a name="columns-0"></a><span class="bold_code">columns() -> {ok, integer() >= 1} | {error, enotsup}</span><br><a name="columns-1"></a><span class="bold_code">columns(IoDevice) -> {ok, integer() >= 1} | {error, enotsup}</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Retrieves the number of columns of the
<span class="code">IoDevice</span> (i.e. the width of a terminal). The function
only succeeds for terminal devices, for all other devices
the function returns <span class="code">{error, enotsup}</span></p>
</p></div>
<p><a name="put_chars-1"></a><span class="bold_code">put_chars(CharData) -> ok</span><br><a name="put_chars-2"></a><span class="bold_code">put_chars(IoDevice, IoData) -> ok</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">IoData = <span class="bold_code"><a href="unicode.html#type-chardata">unicode:chardata()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Writes the characters of <span class="code">CharData</span> to the io_server()
(<span class="code">IoDevice</span>).</p>
</p></div>
<p><a name="nl-0"></a><span class="bold_code">nl() -> ok</span><br><a name="nl-1"></a><span class="bold_code">nl(IoDevice) -> ok</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Writes new line to the standard output (<span class="code">IoDevice</span>).</p>
</p></div>
<p><a name="get_chars-2"></a><span class="bold_code">get_chars(Prompt, Count) -> Data | eof</span><br><a name="get_chars-3"></a><span class="bold_code">get_chars(IoDevice, Prompt, Count) -> Data | eof | {error, Reason}</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Count = integer() >= 0</span></div>
<div class="REFTYPES"><span class="bold_code">Reason = term()</span></div>
<div class="REFTYPES"><span class="bold_code">Data = [<span class="bold_code"><a href="unicode.html#type-unicode_char">unicode:unicode_char()</a></span>] | <span class="bold_code"><a href="unicode.html#type-unicode_binary">unicode:unicode_binary()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads <span class="code">Count</span> characters from standard input
(<span class="code">IoDevice</span>), prompting it with <span class="code">Prompt</span>. It
returns:</p>
<dl>
<dt><strong><span class="code">Data</span></strong></dt>
<dd>
<p>The input characters. If the device supports Unicode,
the data may represent codepoints larger than 255 (the
latin1 range). If the io_server() is set to deliver
binaries, they will be encoded in UTF-8 (regardless of if
the device actually supports Unicode or not).</p>
</dd>
<dt><strong><span class="code">eof</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error,Reason}</span></strong></dt>
<dd>
<p>Other (rare) error condition, for instance <span class="code">{error,estale}</span>
if reading from an NFS file system.</p>
</dd>
</dl>
</p></div>
<p><a name="get_line-1"></a><span class="bold_code">get_line(Prompt) -> Data | eof | {error, Reason}</span><br><a name="get_line-2"></a><span class="bold_code">get_line(IoDevice, Prompt) -> Data | eof | {error, term()}</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Data = [<span class="bold_code"><a href="unicode.html#type-unicode_char">unicode:unicode_char()</a></span>] | <span class="bold_code"><a href="unicode.html#type-unicode_binary">unicode:unicode_binary()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads a line from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. It returns:</p>
<dl>
<dt><strong><span class="code">Data</span></strong></dt>
<dd>
<p>The characters in the line terminated by a LF (or end of
file). If the device supports Unicode,
the data may represent codepoints larger than 255 (the
latin1 range). If the io_server() is set to deliver
binaries, they will be encoded in UTF-8 (regardless of if
the device actually supports Unicode or not).</p>
</dd>
<dt><strong><span class="code">eof</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error,Reason}</span></strong></dt>
<dd>
<p>Other (rare) error condition, for instance <span class="code">{error,estale}</span>
if reading from an NFS file system.</p>
</dd>
</dl>
</p></div>
<p><a name="getopts-0"></a><span class="bold_code">getopts() -> [<span class="bold_code"><a href="#type-opt_pair">opt_pair()</a></span>]</span><br><a name="getopts-1"></a><span class="bold_code">getopts(IoDevice) -> [<span class="bold_code"><a href="#type-opt_pair">opt_pair()</a></span>]</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>This function requests all available options and their current values for a specific io_device(). Example:</p>
<div class="example"><pre>
1> <span class="bold_code">{ok,F} = file:open("/dev/null",[read]).</span>
{ok,<0.42.0>}
2> <span class="bold_code">io:getopts(F).</span>
[{binary,false},{encoding,latin1}]</pre></div>
<p>Here the file I/O-server returns all available options for a file,
which are the expected ones, <span class="code">encoding</span> and <span class="code">binary</span>. The standard shell however has some more options:</p>
<div class="example"><pre>
3> io:getopts().
[{expand_fun,#Fun<group.0.120017273>},
{echo,true},
{binary,false},
{encoding,unicode}]</pre></div>
<p>This example is, as can be seen, run in an environment where the terminal supports Unicode input and output.</p>
</p></div>
<p><a name="setopts-1"></a><span class="bold_code">setopts(Opts) -> ok | {error, Reason}</span><br><a name="setopts-2"></a><span class="bold_code">setopts(IoDevice, Opts) -> ok | {error, Reason}</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Opts = [<span class="bold_code"><a href="#type-setopt">setopt()</a></span>]</span></div>
<div class="REFTYPES"><span class="bold_code">Reason = term()</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Set options for the io_device() (<span class="code">IoDevice</span>).</p>
<p>Possible options and values vary depending on the actual
io_device(). For a list of supported options and their current values
on a specific device, use the <span class="bold_code"><a href="#getopts-1">getopts/1</a></span> function.</p>
<p>The options and values supported by the current OTP io_devices are:</p>
<dl>
<dt><strong><span class="code">binary, list or {binary, boolean()}</span></strong></dt>
<dd>
<p>If set in binary mode (binary or {binary,true}), the io_server() sends binary data (encoded in UTF-8) as answers to the get_line, get_chars and, if possible, get_until requests (see the I/O protocol description in STDLIB User's Guide for details). The immediate effect is that <span class="code">get_chars/2,3</span> and <span class="code">get_line/1,2</span> return UTF-8 binaries instead of lists of chars for the affected device.</p>
<p>By default, all io_devices in OTP are set in list mode, but the io functions can handle any of these modes and so should other, user written, modules behaving as clients to I/O-servers.</p>
<p>This option is supported by the standard shell (group.erl), the 'oldshell' (user.erl) and the file I/O servers.</p>
</dd>
<dt><strong><span class="code">{echo, boolean()}</span></strong></dt>
<dd>
<p>Denotes if the terminal should echo input. Only supported for the standard shell I/O-server (group.erl)</p>
</dd>
<dt><strong><span class="code">{expand_fun, expand_fun()}</span></strong></dt>
<dd>
<p>Provide a function for tab-completion (expansion)
like the erlang shell. This function is called
when the user presses the Tab key. The expansion is
active when calling line-reading functions such as
<span class="code">get_line/1,2</span>.</p>
<p>The function is called with the current line, upto
the cursor, as a reversed string. It should return a
three-tuple: <span class="code">{yes|no, string(), [string(), ...]}</span>. The
first element gives a beep if <span class="code">no</span>, otherwise the
expansion is silent, the second is a string that will be
entered at the cursor position, and the third is a list of
possible expansions. If this list is non-empty, the list
will be printed and the current input line will be written
once again.</p>
<p>Trivial example (beep on anything except empty line, which
is expanded to "quit"):</p>
<div class="example"><pre>
fun("") -> {yes, "quit", []};
(_) -> {no, "", ["quit"]} end</pre></div>
<p>This option is supported by the standard shell only (group.erl).</p>
</dd>
<dt><strong><span class="code">{encoding, latin1 | unicode}</span></strong></dt>
<dd>
<p>Specifies how characters are input or output from or to the actual device, implying that i.e. a terminal is set to handle Unicode input and output or a file is set to handle UTF-8 data encoding.</p>
<p>The option <strong>does not</strong> affect how data is returned from the io-functions or how it is sent in the I/O-protocol, it only affects how the io_device() is to handle Unicode characters towards the "physical" device.</p>
<p>The standard shell will be set for either unicode or latin1 encoding when the system is started. The actual encoding is set with the help of the "LANG" or "LC_CTYPE" environment variables on Unix-like system or by other means on other systems. The bottom line is that the user can input Unicode characters and the device will be in {encoding, unicode} mode if the device supports it. The mode can be changed, if the assumption of the runtime system is wrong, by setting this option.</p>
<p>The io_device() used when Erlang is started with the "-oldshell" or "-noshell" flags is by default set to latin1 encoding, meaning that any characters beyond codepoint 255 will be escaped and that input is expected to be plain 8-bit ISO-latin-1. If the encoding is changed to Unicode, input and output from the standard file descriptors will be in UTF-8 (regardless of operating system).</p>
<p>Files can also be set in {encoding, unicode}, meaning that data is written and read as UTF-8. More encodings are possible for files, see below.</p>
<p>{encoding, unicode | latin1} is supported by both the standard shell (group.erl including werl on windows), the 'oldshell' (user.erl) and the file I/O servers.</p>
</dd>
<dt><strong><span class="code">{encoding, utf8 | utf16 | utf32 | {utf16,big} | {utf16,little} | {utf32,big} | {utf32,little}}</span></strong></dt>
<dd>
<p>For disk files, the encoding can be set to various UTF variants. This will have the effect that data is expected to be read as the specified encoding from the file and the data will be written in the specified encoding to the disk file.</p>
<p>{encoding, utf8} will have the same effect as {encoding,unicode} on files.</p>
<p>The extended encodings are only supported on disk files (opened by the <span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','kernel','file.html#open-2');">file:open/2</a></span> function)</p>
</dd>
</dl>
</p></div>
<p><a name="write-1"></a><span class="bold_code">write(Term) -> ok</span><br><a name="write-2"></a><span class="bold_code">write(IoDevice, Term) -> ok</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Term = term()</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Writes the term <span class="code">Term</span> to the standard output
(<span class="code">IoDevice</span>).</p>
</p></div>
<p><a name="read-1"></a><span class="bold_code">read(Prompt) -> Result</span><br><a name="read-2"></a><span class="bold_code">read(IoDevice, Prompt) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = {ok, Term :: term()}<br> | eof<br> | {error, ErrorInfo :: <span class="bold_code"><a href="erl_scan.html#type-error_info">erl_scan:error_info()</a></span>}</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads a term <span class="code">Term</span> from the standard input
(<span class="code">IoDevice</span>), prompting it with <span class="code">Prompt</span>. It
returns:</p>
<dl>
<dt><strong><span class="code">{ok, Term}</span></strong></dt>
<dd>
<p>The parsing was successful.</p>
</dd>
<dt><strong><span class="code">eof</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, ErrorInfo}</span></strong></dt>
<dd>
<p>The parsing failed.</p>
</dd>
</dl>
</p></div>
<p><a name="read-3"></a><span class="bold_code">read(IoDevice, Prompt, StartLine) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">StartLine = <span class="bold_code"><a href="#type-line">line()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = {ok, Term :: term(), EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {eof, EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {error,<br> ErrorInfo :: <span class="bold_code"><a href="erl_scan.html#type-error_info">erl_scan:error_info()</a></span>,<br> ErrorLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads a term <span class="code">Term</span> from <span class="code">IoDevice</span>, prompting it
with <span class="code">Prompt</span>. Reading starts at line number
<span class="code">StartLine</span>. It returns:</p>
<dl>
<dt><strong><span class="code">{ok, Term, EndLine}</span></strong></dt>
<dd>
<p>The parsing was successful.</p>
</dd>
<dt><strong><span class="code">{eof, EndLine}</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, ErrorInfo, ErrorLine}</span></strong></dt>
<dd>
<p>The parsing failed.</p>
</dd>
</dl>
</p></div>
<p><a name="fwrite-1"></a><span class="bold_code">fwrite(Format) -> ok</span><br><a name="fwrite-2"></a><span class="bold_code">fwrite(Format, Data) -> ok</span><br><a name="fwrite-3"></a><span class="bold_code">fwrite(IoDevice, Format, Data) -> ok</span><br><a name="format-1"></a><span class="bold_code">format(Format) -> ok</span><br><a name="format-2"></a><span class="bold_code">format(Format, Data) -> ok</span><br><a name="format-3"></a><span class="bold_code">format(IoDevice, Format, Data) -> ok</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Format = <span class="bold_code"><a href="#type-format">format()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Data = [term()]</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Writes the items in <span class="code">Data</span> (<span class="code">[]</span>) on the standard
output (<span class="code">IoDevice</span>) in accordance with <span class="code">Format</span>.
<span class="code">Format</span> contains plain characters which are copied to
the output device, and control sequences for formatting, see
below. If <span class="code">Format</span> is an atom or a binary, it is first
converted to a list with the aid of <span class="code">atom_to_list/1</span>
or <span class="code">binary_to_list/1</span>.</p>
<div class="example"><pre>
1> <span class="bold_code">io:fwrite("Hello world!~n", []).</span>
Hello world!
ok</pre></div>
<p>The general format of a control sequence is <span class="code">~F.P.PadModC</span>.
The character <span class="code">C</span> determines the type of control sequence
to be used, <span class="code">F</span> and <span class="code">P</span> are optional numeric
arguments. If <span class="code">F</span>, <span class="code">P</span>, or <span class="code">Pad</span> is <span class="code">*</span>,
the next argument in <span class="code">Data</span> is used as the numeric value
of <span class="code">F</span> or <span class="code">P</span>.</p>
<p><span class="code">F</span> is the <span class="code">field width</span> of the printed argument. A
negative value means that the argument will be left justified
within the field, otherwise it will be right justified. If no
field width is specified, the required print width will be
used. If the field width specified is too small, then the
whole field will be filled with <span class="code">*</span> characters.</p>
<p><span class="code">P</span> is the <span class="code">precision</span> of the printed argument. A
default value is used if no precision is specified. The
interpretation of precision depends on the control sequences.
Unless otherwise specified, the argument <span class="code">within</span> is used
to determine print width.</p>
<p><span class="code">Pad</span> is the padding character. This is the character
used to pad the printed representation of the argument so that
it conforms to the specified field width and precision. Only
one padding character can be specified and, whenever
applicable, it is used for both the field width and precision.
The default padding character is <span class="code">' '</span> (space).</p>
<p><span class="code">Mod</span> is the control sequence modifier. It is either a
single character (currently only 't', for unicode translation,
is supported) that changes the interpretation of Data.</p>
<p>The following control sequences are available:</p>
<dl>
<dt><strong><span class="code">~</span></strong></dt>
<dd>
<p>The character <span class="code">~</span> is written.</p>
</dd>
<dt><strong><span class="code">c</span></strong></dt>
<dd>
<p>The argument is a number that will be interpreted as an
ASCII code. The precision is the number of times the
character is printed and it defaults to the field width,
which in turn defaults to 1. The following example
illustrates:</p>
<div class="example"><pre>
2> <span class="bold_code">io:fwrite("|~10.5c|~-10.5c|~5c|~n", [$a, $b, $c]).</span>
| aaaaa|bbbbb |ccccc|
ok</pre></div>
<p>If the Unicode translation modifier ('t') is in effect,
the integer argument can be any number representing a
valid unicode codepoint, otherwise it should be an integer
less than or equal to 255, otherwise it is masked with 16#FF:</p>
<div class="example"><pre>
1> <span class="bold_code">io:fwrite("~tc~n",[1024]).</span>
\x{400}
ok
2> <span class="bold_code">io:fwrite("~c~n",[1024]).</span>
^@
ok</pre></div>
</dd>
<dt><strong><span class="code">f</span></strong></dt>
<dd>
<p>The argument is a float which is written as
<span class="code">[-]ddd.ddd</span>, where the precision is the number of
digits after the decimal point. The default precision is 6
and it cannot be less than 1.</p>
</dd>
<dt><strong><span class="code">e</span></strong></dt>
<dd>
<p>The argument is a float which is written as
<span class="code">[-]d.ddde+-ddd</span>, where the precision is the number
of digits written. The default precision is 6 and it
cannot be less than 2.</p>
</dd>
<dt><strong><span class="code">g</span></strong></dt>
<dd>
<p>The argument is a float which is written as <span class="code">f</span>, if
it is >= 0.1 and < 10000.0. Otherwise, it is written
in the <span class="code">e</span> format. The precision is the number of
significant digits. It defaults to 6 and should not be
less than 2. If the absolute value of the float does not
allow it to be written in the <span class="code">f</span> format with the
desired number of significant digits, it is also written
in the <span class="code">e</span> format.</p>
</dd>
<dt><strong><span class="code">s</span></strong></dt>
<dd>
<p>Prints the argument with the <span class="code">string</span> syntax. The
argument is, if no Unicode translation modifier is present, an
iolist(), a binary, or an atom. If the Unicode translation modifier ('t') is in effect, the argument is unicode:chardata(), meaning that binaries are in UTF-8. The characters
are printed without quotes. The string is first truncated
by the given precision and then padded and justified
to the given field width. The default precision is the field width.</p>
<p>This format can be used for printing any object and
truncating the output so it fits a specified field:</p>
<div class="example"><pre>
3> <span class="bold_code">io:fwrite("|~10w|~n", [{hey, hey, hey}]).</span>
|**********|
ok
4> <span class="bold_code">io:fwrite("|~10s|~n", [io_lib:write({hey, hey, hey})]).</span>
|{hey,hey,h|
5> <span class="bold_code">io:fwrite("|~-10.8s|~n", [io_lib:write({hey, hey, hey})]).</span>
|{hey,hey |
ok</pre></div>
<p>A list with integers larger than 255 is considered an error if the Unicode translation modifier is not given:</p>
<div class="example"><pre>
1> <span class="bold_code">io:fwrite("~ts~n",[[1024]]).</span>
\x{400}
ok
2> io:fwrite("~s~n",[[1024]]).
** exception exit: {badarg,[{io,format,[<0.26.0>,"~s~n",[[1024]]]},
...</pre></div>
</dd>
<dt><strong><span class="code">w</span></strong></dt>
<dd>
<p>Writes data with the standard syntax. This is used to
output Erlang terms. Atoms are printed within quotes if
they contain embedded non-printable characters, and
floats are printed accurately as the shortest, correctly
rounded string.</p>
</dd>
<dt><strong><span class="code">p</span></strong></dt>
<dd>
<p>Writes the data with standard syntax in the same way as
<span class="code">~w</span>, but breaks terms whose printed representation
is longer than one line into many lines and indents each
line sensibly. It also tries to detect lists of printable
characters and to output these as strings. For example:</p>
<div class="example"><pre>
5> <span class="bold_code">T = [{attributes,[[{id,age,1.50000},{mode,explicit},</span>
<span class="bold_code">{typename,"INTEGER"}], [{id,cho},{mode,explicit},{typename,'Cho'}]]},</span>
<span class="bold_code">{typename,'Person'},{tag,{'PRIVATE',3}},{mode,implicit}].</span>
...
6> <span class="bold_code">io:fwrite("~w~n", [T]).</span>
[{attributes,[[{id,age,1.5},{mode,explicit},{typename,
[73,78,84,69,71,69,82]}],[{id,cho},{mode,explicit},{typena
me,'Cho'}]]},{typename,'Person'},{tag,{'PRIVATE',3}},{mode
,implicit}]
ok
7> <span class="bold_code">io:fwrite("~62p~n", [T]).</span>
[{attributes,[[{id,age,1.5},
{mode,explicit},
{typename,"INTEGER"}],
[{id,cho},{mode,explicit},{typename,'Cho'}]]},
{typename,'Person'},
{tag,{'PRIVATE',3}},
{mode,implicit}]
ok</pre></div>
<p>The field width specifies the maximum line length. It
defaults to 80. The precision specifies the initial
indentation of the term. It defaults to the number of
characters printed on this line in the <span class="code">same</span> call to
<span class="code">io:fwrite</span> or <span class="code">io:format</span>. For example, using
<span class="code">T</span> above:</p>
<div class="example"><pre>
8> <span class="bold_code">io:fwrite("Here T = ~62p~n", [T]).</span>
Here T = [{attributes,[[{id,age,1.5},
{mode,explicit},
{typename,"INTEGER"}],
[{id,cho},
{mode,explicit},
{typename,'Cho'}]]},
{typename,'Person'},
{tag,{'PRIVATE',3}},
{mode,implicit}]
ok</pre></div>
</dd>
<dt><strong><span class="code">W</span></strong></dt>
<dd>
<p>Writes data in the same way as <span class="code">~w</span>, but takes an
extra argument which is the maximum depth to which terms
are printed. Anything below this depth is replaced with
<span class="code">...</span>. For example, using <span class="code">T</span> above:</p>
<div class="example"><pre>
9> <span class="bold_code">io:fwrite("~W~n", [T,9]).</span>
[{attributes,[[{id,age,1.5},{mode,explicit},{typename,...}],
[{id,cho},{mode,...},{...}]]},{typename,'Person'},
{tag,{'PRIVATE',3}},{mode,implicit}]
ok</pre></div>
<p>If the maximum depth has been reached, then it is
impossible to read in the resultant output. Also, the
<span class="code">,...</span> form in a tuple denotes that there are more
elements in the tuple but these are below the print depth.</p>
</dd>
<dt><strong><span class="code">P</span></strong></dt>
<dd>
<p>Writes data in the same way as <span class="code">~p</span>, but takes an
extra argument which is the maximum depth to which terms
are printed. Anything below this depth is replaced with
<span class="code">...</span>. For example:</p>
<div class="example"><pre>
10> <span class="bold_code">io:fwrite("~62P~n", [T,9]).</span>
[{attributes,[[{id,age,1.5},{mode,explicit},{typename,...}],
[{id,cho},{mode,...},{...}]]},
{typename,'Person'},
{tag,{'PRIVATE',3}},
{mode,implicit}]
ok</pre></div>
</dd>
<dt><strong><span class="code">B</span></strong></dt>
<dd>
<p>Writes an integer in base 2..36, the default base is
10. A leading dash is printed for negative integers.</p>
<p>The precision field selects base. For example:</p>
<div class="example"><pre>
11> <span class="bold_code">io:fwrite("~.16B~n", [31]).</span>
1F
ok
12> <span class="bold_code">io:fwrite("~.2B~n", [-19]).</span>
-10011
ok
13> <span class="bold_code">io:fwrite("~.36B~n", [5*36+35]).</span>
5Z
ok</pre></div>
</dd>
<dt><strong><span class="code">X</span></strong></dt>
<dd>
<p>Like <span class="code">B</span>, but takes an extra argument that is a
prefix to insert before the number, but after the leading
dash, if any.</p>
<p>The prefix can be a possibly deep list of characters or
an atom.</p>
<div class="example"><pre>
14> <span class="bold_code">io:fwrite("~X~n", [31,"10#"]).</span>
10#31
ok
15> <span class="bold_code">io:fwrite("~.16X~n", [-31,"0x"]).</span>
-0x1F
ok</pre></div>
</dd>
<dt><strong><span class="code">#</span></strong></dt>
<dd>
<p>Like <span class="code">B</span>, but prints the number with an Erlang style
'#'-separated base prefix.</p>
<div class="example"><pre>
16> <span class="bold_code">io:fwrite("~.10#~n", [31]).</span>
10#31
ok
17> <span class="bold_code">io:fwrite("~.16#~n", [-31]).</span>
-16#1F
ok</pre></div>
</dd>
<dt><strong><span class="code">b</span></strong></dt>
<dd>
<p>Like <span class="code">B</span>, but prints lowercase letters.</p>
</dd>
<dt><strong><span class="code">x</span></strong></dt>
<dd>
<p>Like <span class="code">X</span>, but prints lowercase letters.</p>
</dd>
<dt><strong><span class="code">+</span></strong></dt>
<dd>
<p>Like <span class="code">#</span>, but prints lowercase letters.</p>
</dd>
<dt><strong><span class="code">n</span></strong></dt>
<dd>
<p>Writes a new line.</p>
</dd>
<dt><strong><span class="code">i</span></strong></dt>
<dd>
<p>Ignores the next term.</p>
</dd>
</dl>
<p>Returns:</p>
<dl>
<dt><strong><span class="code">ok</span></strong></dt>
<dd>
<p>The formatting succeeded.</p>
</dd>
</dl>
<p>If an error occurs, there is no output. For example:</p>
<div class="example"><pre>
18> <span class="bold_code">io:fwrite("~s ~w ~i ~w ~c ~n",['abc def', 'abc def', {foo, 1},{foo, 1}, 65]).</span>
abc def 'abc def' {foo,1} A
ok
19> <span class="bold_code">io:fwrite("~s", [65]).</span>
** exception exit: {badarg,[{io,format,[<0.22.0>,"~s","A"]},
{erl_eval,do_apply,5},
{shell,exprs,6},
{shell,eval_exprs,6},
{shell,eval_loop,3}]}
in function io:o_request/2</pre></div>
<p>In this example, an attempt was made to output the single
character '65' with the aid of the string formatting directive
"~s".</p>
</p></div>
<p><a name="fread-2"></a><span class="bold_code">fread(Prompt, Format) -> Result</span><br><a name="fread-3"></a><span class="bold_code">fread(IoDevice, Prompt, Format) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Format = <span class="bold_code"><a href="#type-format">format()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = {ok, Terms :: [term()]}<br> | eof<br> | {error, What :: term()}</span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads characters from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. Interprets the characters in
accordance with <span class="code">Format</span>. <span class="code">Format</span> contains control
sequences which directs the interpretation of the input.</p>
<p><span class="code">Format</span> may contain:</p>
<ul>
<li>
<p>White space characters (SPACE, TAB and NEWLINE) which
cause input to be read to the next non-white space
character.</p>
</li>
<li>
<p>Ordinary characters which must match the next input
character.</p>
</li>
<li>
<p>Control sequences, which have the general format
<span class="code">~*FMC</span>. The character <span class="code">*</span> is an optional
return suppression character. It provides a method to
specify a field which is to be omitted. <span class="code">F</span> is the
<span class="code">field width</span> of the input field, <span class="code">M</span> is an optional
translation modifier (of which 't' is the only currently
supported, meaning Unicode translation) and <span class="code">C</span>
determines the type of control sequence.</p>
<p>Unless otherwise specified, leading white-space is
ignored for all control sequences. An input field cannot
be more than one line wide. The following control
sequences are available:</p>
<dl>
<dt><strong><span class="code">~</span></strong></dt>
<dd>
<p>A single <span class="code">~</span> is expected in the input.</p>
</dd>
<dt><strong><span class="code">d</span></strong></dt>
<dd>
<p>A decimal integer is expected.</p>
</dd>
<dt><strong><span class="code">u</span></strong></dt>
<dd>
<p>An unsigned integer in base 2..36 is expected. The
field width parameter is used to specify base. Leading
white-space characters are not skipped.</p>
</dd>
<dt><strong><span class="code">-</span></strong></dt>
<dd>
<p>An optional sign character is expected. A sign
character '-' gives the return value <span class="code">-1</span>. Sign
character '+' or none gives <span class="code">1</span>. The field width
parameter is ignored. Leading white-space characters
are not skipped.</p>
</dd>
<dt><strong><span class="code">#</span></strong></dt>
<dd>
<p>An integer in base 2..36 with Erlang-style base
prefix (for example <span class="code">"16#ffff"</span>) is expected.</p>
</dd>
<dt><strong><span class="code">f</span></strong></dt>
<dd>
<p>A floating point number is expected. It must follow
the Erlang floating point number syntax.</p>
</dd>
<dt><strong><span class="code">s</span></strong></dt>
<dd>
<p>A string of non-white-space characters is read. If a
field width has been specified, this number of
characters are read and all trailing white-space
characters are stripped. An Erlang string (list of
characters) is returned.</p>
<p>If Unicode translation is in effect (~ts),
characters larger than 255 are accepted, otherwise
not. With the translation modifier, the list
returned may as a consequence also contain
integers larger than 255:</p>
<div class="example"><pre>
1> <span class="bold_code">io:fread("Prompt> ","~s").</span>
Prompt> <span class="bold_code"><Characters beyond latin1 range not printable in this medium></span>
{error,{fread,string}}
2> <span class="bold_code">io:fread("Prompt> ","~ts").</span>
Prompt> <span class="bold_code"><Characters beyond latin1 range not printable in this medium></span>
{ok,[[1091,1085,1080,1094,1086,1076,1077]]}</pre></div>
</dd>
<dt><strong><span class="code">a</span></strong></dt>
<dd>
<p>Similar to <span class="code">s</span>, but the resulting string is
converted into an atom.</p>
<p>The Unicode translation modifier is not allowed (atoms can not contain characters beyond the latin1 range).</p>
</dd>
<dt><strong><span class="code">c</span></strong></dt>
<dd>
<p>The number of characters equal to the field width are
read (default is 1) and returned as an Erlang string.
However, leading and trailing white-space characters
are not omitted as they are with <span class="code">s</span>. All
characters are returned.</p>
<p>The Unicode translation modifier works as with <span class="code">s</span>:</p>
<div class="example"><pre>
1> <span class="bold_code">io:fread("Prompt> ","~c").</span>
Prompt> <span class="bold_code"><Character beyond latin1 range not printable in this medium></span>
{error,{fread,string}}
2> <span class="bold_code">io:fread("Prompt> ","~tc").</span>
Prompt> <span class="bold_code"><Character beyond latin1 range not printable in this medium></span>
{ok,[[1091]]}</pre></div>
</dd>
<dt><strong><span class="code">l</span></strong></dt>
<dd>
<p>Returns the number of characters which have been
scanned up to that point, including white-space
characters.</p>
</dd>
</dl>
<p>It returns:</p>
<dl>
<dt><strong><span class="code">{ok, Terms}</span></strong></dt>
<dd>
<p>The read was successful and <span class="code">Terms</span> is the list
of successfully matched and read items.</p>
</dd>
<dt><strong><span class="code">eof</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, What}</span></strong></dt>
<dd>
<p>The read operation failed and the parameter
<span class="code">What</span> gives a hint about the error.</p>
</dd>
</dl>
</li>
</ul>
<p>Examples:</p>
<div class="example"><pre>
20> <span class="bold_code">io:fread('enter>', "~f~f~f").</span>
enter><span class="bold_code">1.9 35.5e3 15.0</span>
{ok,[1.9,3.55e4,15.0]}
21> <span class="bold_code">io:fread('enter>', "~10f~d").</span>
enter> <span class="bold_code">5.67899</span>
{ok,[5.678,99]}
22> <span class="bold_code">io:fread('enter>', ":~10s:~10c:").</span>
enter><span class="bold_code">:</span> <span class="bold_code">alan</span> <span class="bold_code">:</span> <span class="bold_code">joe</span> <span class="bold_code">:</span>
{ok, ["alan", " joe "]}</pre></div>
</p></div>
<p><a name="rows-0"></a><span class="bold_code">rows() -> {ok, integer() >= 1} | {error, enotsup}</span><br><a name="rows-1"></a><span class="bold_code">rows(IoDevice) -> {ok, integer() >= 1} | {error, enotsup}</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Retrieves the number of rows of the
<span class="code">IoDevice</span> (i.e. the height of a terminal). The function
only succeeds for terminal devices, for all other devices
the function returns <span class="code">{error, enotsup}</span></p>
</p></div>
<p><a name="scan_erl_exprs-1"></a><span class="bold_code">scan_erl_exprs(Prompt) -> Result</span><br><a name="scan_erl_exprs-2"></a><span class="bold_code">scan_erl_exprs(Device, Prompt) -> Result</span><br><a name="scan_erl_exprs-3"></a><span class="bold_code">scan_erl_exprs(Device, Prompt, StartLine) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">Device = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">StartLine = <span class="bold_code"><a href="#type-line">line()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = <span class="bold_code"><a href="erl_scan.html#type-tokens_result">erl_scan:tokens_result()</a></span> | <span class="bold_code"><a href="#type-request_error">request_error()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads data from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. Reading starts at line number
<span class="code">StartLine</span> (1). The data is tokenized as if it were a
sequence of Erlang expressions until a final <span class="code">'.'</span> is
reached. This token is also returned. It returns:</p>
<dl>
<dt><strong><span class="code">{ok, Tokens, EndLine}</span></strong></dt>
<dd>
<p>The tokenization succeeded.</p>
</dd>
<dt><strong><span class="code">{eof, EndLine}</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, ErrorInfo, ErrorLine}</span></strong></dt>
<dd>
<p>An error occurred.</p>
</dd>
</dl>
<p>Example:</p>
<div class="example"><pre>
23> <span class="bold_code">io:scan_erl_exprs('enter>').</span>
enter><span class="bold_code">abc(), "hey".</span>
{ok,[{atom,1,abc},{'(',1},{')',1},{',',1},{string,1,"hey"},{dot,1}],2}
24> <span class="bold_code">io:scan_erl_exprs('enter>').</span>
enter><span class="bold_code">1.0er.</span>
{error,{1,erl_scan,{illegal,float}},2}</pre></div>
</p></div>
<p><a name="scan_erl_form-1"></a><span class="bold_code">scan_erl_form(Prompt) -> Result</span><br><a name="scan_erl_form-2"></a><span class="bold_code">scan_erl_form(IoDevice, Prompt) -> Result</span><br><a name="scan_erl_form-3"></a><span class="bold_code">scan_erl_form(IoDevice, Prompt, StartLine) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">StartLine = <span class="bold_code"><a href="#type-line">line()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = <span class="bold_code"><a href="erl_scan.html#type-tokens_result">erl_scan:tokens_result()</a></span> | <span class="bold_code"><a href="#type-request_error">request_error()</a></span></span></div>
</div></p>
<div class="REFBODY"><p>
<p>Reads data from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. Starts reading at line number
<span class="code">StartLine</span> (1). The data is tokenized as if it were an
Erlang form - one of the valid Erlang expressions in an
Erlang source file - until a final <span class="code">'.'</span> is reached.
This last token is also returned. The return values are the
same as for <span class="code">scan_erl_exprs/1,2,3</span> above.</p>
</p></div>
<p><a name="parse_erl_exprs-1"></a><span class="bold_code">parse_erl_exprs(Prompt) -> Result</span><br><a name="parse_erl_exprs-2"></a><span class="bold_code">parse_erl_exprs(IoDevice, Prompt) -> Result</span><br><a name="parse_erl_exprs-3"></a><span class="bold_code">parse_erl_exprs(IoDevice, Prompt, StartLine) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">StartLine = <span class="bold_code"><a href="#type-line">line()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = parse_ret()</span></div>
<div class="REFTYPES">
<span class="bold_code">parse_ret() = {ok,<br> ExprList :: <span class="bold_code"><a href="erl_parse.html#type-abstract_expr">erl_parse:abstract_expr()</a></span>,<br> EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {eof, EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {error,<br> ErrorInfo :: <span class="bold_code"><a href="erl_scan.html#type-error_info">erl_scan:error_info()</a></span>,<br> ErrorLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | <span class="bold_code"><a href="#type-request_error">request_error()</a></span></span><br>
</div>
</div></p>
<div class="REFBODY"><p>
<p>Reads data from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. Starts reading at line number
<span class="code">StartLine</span> (1). The data is tokenized and parsed as if
it were a sequence of Erlang expressions until a final '.' is
reached. It returns:</p>
<dl>
<dt><strong><span class="code">{ok, ExprList, EndLine}</span></strong></dt>
<dd>
<p>The parsing was successful.</p>
</dd>
<dt><strong><span class="code">{eof, EndLine}</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, ErrorInfo, ErrorLine}</span></strong></dt>
<dd>
<p>An error occurred.</p>
</dd>
</dl>
<p>Example:</p>
<div class="example"><pre>
25> <span class="bold_code">io:parse_erl_exprs('enter>').</span>
enter><span class="bold_code">abc(), "hey".</span>
{ok, [{call,1,{atom,1,abc},[]},{string,1,"hey"}],2}
26> <span class="bold_code">io:parse_erl_exprs ('enter>').</span>
enter><span class="bold_code">abc("hey".</span>
{error,{1,erl_parse,["syntax error before: ",["'.'"]]},2}</pre></div>
</p></div>
<p><a name="parse_erl_form-1"></a><span class="bold_code">parse_erl_form(Prompt) -> Result</span><br><a name="parse_erl_form-2"></a><span class="bold_code">parse_erl_form(IoDevice, Prompt) -> Result</span><br><a name="parse_erl_form-3"></a><span class="bold_code">parse_erl_form(IoDevice, Prompt, StartLine) -> Result</span><br><div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES"><span class="bold_code">IoDevice = <span class="bold_code"><a href="#type-device">device()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Prompt = <span class="bold_code"><a href="#type-prompt">prompt()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">StartLine = <span class="bold_code"><a href="#type-line">line()</a></span></span></div>
<div class="REFTYPES"><span class="bold_code">Result = parse_form_ret()</span></div>
<div class="REFTYPES">
<span class="bold_code">parse_form_ret() = {ok,<br> AbsForm :: <span class="bold_code"><a href="erl_parse.html#type-abstract_form">erl_parse:abstract_form()</a></span>,<br> EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {eof, EndLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | {error,<br> ErrorInfo :: <span class="bold_code"><a href="erl_scan.html#type-error_info">erl_scan:error_info()</a></span>,<br> ErrorLine :: <span class="bold_code"><a href="#type-line">line()</a></span>}<br> | <span class="bold_code"><a href="#type-request_error">request_error()</a></span></span><br>
</div>
</div></p>
<div class="REFBODY"><p>
<p>Reads data from the standard input (<span class="code">IoDevice</span>),
prompting it with <span class="code">Prompt</span>. Starts reading at line number
<span class="code">StartLine</span> (1). The data is tokenized and parsed as if
it were an Erlang form - one of the valid Erlang expressions
in an Erlang source file - until a final '.' is reached. It
returns:</p>
<dl>
<dt><strong><span class="code">{ok, AbsForm, EndLine}</span></strong></dt>
<dd>
<p>The parsing was successful.</p>
</dd>
<dt><strong><span class="code">{eof, EndLine}</span></strong></dt>
<dd>
<p>End of file was encountered.</p>
</dd>
<dt><strong><span class="code">{error, ErrorInfo, ErrorLine}</span></strong></dt>
<dd>
<p>An error occurred.</p>
</dd>
</dl>
</p></div>
<h3><a name="id188859">Standard Input/Output</a></h3>
<div class="REFBODY">
<p>All Erlang processes have a default standard IO device. This
device is used when no <span class="code">IoDevice</span> argument is specified in
the above function calls. However, it is sometimes desirable to
use an explicit <span class="code">IoDevice</span> argument which refers to the
default IO device. This is the case with functions that can
access either a file or the default IO device. The atom
<span class="code">standard_io</span> has this special meaning. The following example
illustrates this:</p>
<div class="example"><pre>
27> <span class="bold_code">io:read('enter>').</span>
enter><span class="bold_code">foo.</span>
{ok,foo}
28> <span class="bold_code">io:read(standard_io, 'enter>').</span>
enter><span class="bold_code">bar.</span>
{ok,bar}</pre></div>
<p>There is always a process registered under the name of
<span class="code">user</span>. This can be used for sending output to the user.</p>
</div>
<h3><a name="id188912">Standard Error</a></h3>
<div class="REFBODY">
<p>In certain situations, especially when the standard output is redirected, access to an io_server() specific for error messages might be convenient. The io_device 'standard_error' can be used to direct output to whatever the current operating system considers a suitable device for error output. Example on a Unix-like operating system:</p>
<div class="example"><pre>
$ <span class="bold_code">erl -noshell -noinput -eval 'io:format(standard_error,"Error: ~s~n",["error 11"]),'\</span>
<span class="bold_code">'init:stop().' > /dev/null</span>
Error: error 11</pre></div>
</div>
<h3><a name="id188938">Error Information</a></h3>
<div class="REFBODY">
<p>The <span class="code">ErrorInfo</span> mentioned above is the standard
<span class="code">ErrorInfo</span> structure which is returned from all IO modules.
It has the format:</p>
<div class="example"><pre>
{ErrorLine, Module, ErrorDescriptor}</pre></div>
<p>A string which describes the error is obtained with the following
call:</p>
<div class="example"><pre>
Module:format_error(ErrorDescriptor)</pre></div>
</div>
</div>
<div class="footer">
<hr>
<p>Copyright © 1997-2012 Ericsson AB. All Rights Reserved.</p>
</div>
</div>
</div></body>
</html>
distrib
>
Fedora
>
17
>
i386
>
media
>
updates
>
by-pkgid
>
675c8c8167236dfcf8d66da674f931e8
>
files
>
1411
