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<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/syntax_tools-1.6.9.pdf">PDF</a><br><a href="../../../../doc/index.html">Top</a></small><p><strong>Syntax_Tools</strong><br><strong>Reference Manual</strong><br><small>Version 1.6.9</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>
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<li id="loadscrollpos" title="epp_dodger " expanded="true">epp_dodger<ul>
<li><a href="epp_dodger.html">
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<li title="parse-1"><a href="epp_dodger.html#parse-1">parse/1</a></li>
<li title="parse-2"><a href="epp_dodger.html#parse-2">parse/2</a></li>
<li title="parse-3"><a href="epp_dodger.html#parse-3">parse/3</a></li>
<li title="parse_file-1"><a href="epp_dodger.html#parse_file-1">parse_file/1</a></li>
<li title="parse_file-2"><a href="epp_dodger.html#parse_file-2">parse_file/2</a></li>
<li title="parse_form-2"><a href="epp_dodger.html#parse_form-2">parse_form/2</a></li>
<li title="parse_form-3"><a href="epp_dodger.html#parse_form-3">parse_form/3</a></li>
<li title="quick_parse-1"><a href="epp_dodger.html#quick_parse-1">quick_parse/1</a></li>
<li title="quick_parse-2"><a href="epp_dodger.html#quick_parse-2">quick_parse/2</a></li>
<li title="quick_parse-3"><a href="epp_dodger.html#quick_parse-3">quick_parse/3</a></li>
<li title="quick_parse_file-1"><a href="epp_dodger.html#quick_parse_file-1">quick_parse_file/1</a></li>
<li title="quick_parse_file-2"><a href="epp_dodger.html#quick_parse_file-2">quick_parse_file/2</a></li>
<li title="quick_parse_form-2"><a href="epp_dodger.html#quick_parse_form-2">quick_parse_form/2</a></li>
<li title="quick_parse_form-3"><a href="epp_dodger.html#quick_parse_form-3">quick_parse_form/3</a></li>
<li title="tokens_to_string-1"><a href="epp_dodger.html#tokens_to_string-1">tokens_to_string/1</a></li>
</ul>
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<li id="no" title="erl_comment_scan " expanded="false">erl_comment_scan<ul>
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<li title="file-1"><a href="erl_comment_scan.html#file-1">file/1</a></li>
<li title="join_lines-1"><a href="erl_comment_scan.html#join_lines-1">join_lines/1</a></li>
<li title="scan_lines-1"><a href="erl_comment_scan.html#scan_lines-1">scan_lines/1</a></li>
<li title="string-1"><a href="erl_comment_scan.html#string-1">string/1</a></li>
</ul>
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<li title="best-1"><a href="erl_prettypr.html#best-1">best/1</a></li>
<li title="best-2"><a href="erl_prettypr.html#best-2">best/2</a></li>
<li title="format-1"><a href="erl_prettypr.html#format-1">format/1</a></li>
<li title="format-2"><a href="erl_prettypr.html#format-2">format/2</a></li>
<li title="get_ctxt_hook-1"><a href="erl_prettypr.html#get_ctxt_hook-1">get_ctxt_hook/1</a></li>
<li title="get_ctxt_linewidth-1"><a href="erl_prettypr.html#get_ctxt_linewidth-1">get_ctxt_linewidth/1</a></li>
<li title="get_ctxt_paperwidth-1"><a href="erl_prettypr.html#get_ctxt_paperwidth-1">get_ctxt_paperwidth/1</a></li>
<li title="get_ctxt_precedence-1"><a href="erl_prettypr.html#get_ctxt_precedence-1">get_ctxt_precedence/1</a></li>
<li title="get_ctxt_user-1"><a href="erl_prettypr.html#get_ctxt_user-1">get_ctxt_user/1</a></li>
<li title="layout-1"><a href="erl_prettypr.html#layout-1">layout/1</a></li>
<li title="layout-2"><a href="erl_prettypr.html#layout-2">layout/2</a></li>
<li title="set_ctxt_hook-2"><a href="erl_prettypr.html#set_ctxt_hook-2">set_ctxt_hook/2</a></li>
<li title="set_ctxt_linewidth-2"><a href="erl_prettypr.html#set_ctxt_linewidth-2">set_ctxt_linewidth/2</a></li>
<li title="set_ctxt_paperwidth-2"><a href="erl_prettypr.html#set_ctxt_paperwidth-2">set_ctxt_paperwidth/2</a></li>
<li title="set_ctxt_precedence-2"><a href="erl_prettypr.html#set_ctxt_precedence-2">set_ctxt_precedence/2</a></li>
<li title="set_ctxt_user-2"><a href="erl_prettypr.html#set_ctxt_user-2">set_ctxt_user/2</a></li>
</ul>
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<li id="no" title="erl_recomment " expanded="false">erl_recomment<ul>
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<li title="recomment_forms-2"><a href="erl_recomment.html#recomment_forms-2">recomment_forms/2</a></li>
<li title="recomment_tree-2"><a href="erl_recomment.html#recomment_tree-2">recomment_tree/2</a></li>
</ul>
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<li id="no" title="erl_syntax " expanded="false">erl_syntax<ul>
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<li title="abstract-1"><a href="erl_syntax.html#abstract-1">abstract/1</a></li>
<li title="add_ann-2"><a href="erl_syntax.html#add_ann-2">add_ann/2</a></li>
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<li title="application-2"><a href="erl_syntax.html#application-2">application/2</a></li>
<li title="application-3"><a href="erl_syntax.html#application-3">application/3</a></li>
<li title="application_arguments-1"><a href="erl_syntax.html#application_arguments-1">application_arguments/1</a></li>
<li title="application_operator-1"><a href="erl_syntax.html#application_operator-1">application_operator/1</a></li>
<li title="arity_qualifier-2"><a href="erl_syntax.html#arity_qualifier-2">arity_qualifier/2</a></li>
<li title="arity_qualifier_argument-1"><a href="erl_syntax.html#arity_qualifier_argument-1">arity_qualifier_argument/1</a></li>
<li title="arity_qualifier_body-1"><a href="erl_syntax.html#arity_qualifier_body-1">arity_qualifier_body/1</a></li>
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<li title="attribute-2"><a href="erl_syntax.html#attribute-2">attribute/2</a></li>
<li title="attribute_arguments-1"><a href="erl_syntax.html#attribute_arguments-1">attribute_arguments/1</a></li>
<li title="attribute_name-1"><a href="erl_syntax.html#attribute_name-1">attribute_name/1</a></li>
<li title="binary-1"><a href="erl_syntax.html#binary-1">binary/1</a></li>
<li title="binary_comp-2"><a href="erl_syntax.html#binary_comp-2">binary_comp/2</a></li>
<li title="binary_comp_body-1"><a href="erl_syntax.html#binary_comp_body-1">binary_comp_body/1</a></li>
<li title="binary_comp_template-1"><a href="erl_syntax.html#binary_comp_template-1">binary_comp_template/1</a></li>
<li title="binary_field-1"><a href="erl_syntax.html#binary_field-1">binary_field/1</a></li>
<li title="binary_field-2"><a href="erl_syntax.html#binary_field-2">binary_field/2</a></li>
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<li title="binary_field_body-1"><a href="erl_syntax.html#binary_field_body-1">binary_field_body/1</a></li>
<li title="binary_field_size-1"><a href="erl_syntax.html#binary_field_size-1">binary_field_size/1</a></li>
<li title="binary_field_types-1"><a href="erl_syntax.html#binary_field_types-1">binary_field_types/1</a></li>
<li title="binary_fields-1"><a href="erl_syntax.html#binary_fields-1">binary_fields/1</a></li>
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<li title="binary_generator_pattern-1"><a href="erl_syntax.html#binary_generator_pattern-1">binary_generator_pattern/1</a></li>
<li title="block_expr-1"><a href="erl_syntax.html#block_expr-1">block_expr/1</a></li>
<li title="block_expr_body-1"><a href="erl_syntax.html#block_expr_body-1">block_expr_body/1</a></li>
<li title="case_expr-2"><a href="erl_syntax.html#case_expr-2">case_expr/2</a></li>
<li title="case_expr_argument-1"><a href="erl_syntax.html#case_expr_argument-1">case_expr_argument/1</a></li>
<li title="case_expr_clauses-1"><a href="erl_syntax.html#case_expr_clauses-1">case_expr_clauses/1</a></li>
<li title="catch_expr-1"><a href="erl_syntax.html#catch_expr-1">catch_expr/1</a></li>
<li title="catch_expr_body-1"><a href="erl_syntax.html#catch_expr_body-1">catch_expr_body/1</a></li>
<li title="char-1"><a href="erl_syntax.html#char-1">char/1</a></li>
<li title="char_literal-1"><a href="erl_syntax.html#char_literal-1">char_literal/1</a></li>
<li title="char_value-1"><a href="erl_syntax.html#char_value-1">char_value/1</a></li>
<li title="class_qualifier-2"><a href="erl_syntax.html#class_qualifier-2">class_qualifier/2</a></li>
<li title="class_qualifier_argument-1"><a href="erl_syntax.html#class_qualifier_argument-1">class_qualifier_argument/1</a></li>
<li title="class_qualifier_body-1"><a href="erl_syntax.html#class_qualifier_body-1">class_qualifier_body/1</a></li>
<li title="clause-2"><a href="erl_syntax.html#clause-2">clause/2</a></li>
<li title="clause-3"><a href="erl_syntax.html#clause-3">clause/3</a></li>
<li title="clause_body-1"><a href="erl_syntax.html#clause_body-1">clause_body/1</a></li>
<li title="clause_guard-1"><a href="erl_syntax.html#clause_guard-1">clause_guard/1</a></li>
<li title="clause_patterns-1"><a href="erl_syntax.html#clause_patterns-1">clause_patterns/1</a></li>
<li title="comment-1"><a href="erl_syntax.html#comment-1">comment/1</a></li>
<li title="comment-2"><a href="erl_syntax.html#comment-2">comment/2</a></li>
<li title="comment_padding-1"><a href="erl_syntax.html#comment_padding-1">comment_padding/1</a></li>
<li title="comment_text-1"><a href="erl_syntax.html#comment_text-1">comment_text/1</a></li>
<li title="compact_list-1"><a href="erl_syntax.html#compact_list-1">compact_list/1</a></li>
<li title="concrete-1"><a href="erl_syntax.html#concrete-1">concrete/1</a></li>
<li title="cond_expr-1"><a href="erl_syntax.html#cond_expr-1">cond_expr/1</a></li>
<li title="cond_expr_clauses-1"><a href="erl_syntax.html#cond_expr_clauses-1">cond_expr_clauses/1</a></li>
<li title="conjunction-1"><a href="erl_syntax.html#conjunction-1">conjunction/1</a></li>
<li title="conjunction_body-1"><a href="erl_syntax.html#conjunction_body-1">conjunction_body/1</a></li>
<li title="cons-2"><a href="erl_syntax.html#cons-2">cons/2</a></li>
<li title="copy_ann-2"><a href="erl_syntax.html#copy_ann-2">copy_ann/2</a></li>
<li title="copy_attrs-2"><a href="erl_syntax.html#copy_attrs-2">copy_attrs/2</a></li>
<li title="copy_comments-2"><a href="erl_syntax.html#copy_comments-2">copy_comments/2</a></li>
<li title="copy_pos-2"><a href="erl_syntax.html#copy_pos-2">copy_pos/2</a></li>
<li title="data-1"><a href="erl_syntax.html#data-1">data/1</a></li>
<li title="disjunction-1"><a href="erl_syntax.html#disjunction-1">disjunction/1</a></li>
<li title="disjunction_body-1"><a href="erl_syntax.html#disjunction_body-1">disjunction_body/1</a></li>
<li title="eof_marker-0"><a href="erl_syntax.html#eof_marker-0">eof_marker/0</a></li>
<li title="error_marker-1"><a href="erl_syntax.html#error_marker-1">error_marker/1</a></li>
<li title="error_marker_info-1"><a href="erl_syntax.html#error_marker_info-1">error_marker_info/1</a></li>
<li title="flatten_form_list-1"><a href="erl_syntax.html#flatten_form_list-1">flatten_form_list/1</a></li>
<li title="float-1"><a href="erl_syntax.html#float-1">float/1</a></li>
<li title="float_literal-1"><a href="erl_syntax.html#float_literal-1">float_literal/1</a></li>
<li title="float_value-1"><a href="erl_syntax.html#float_value-1">float_value/1</a></li>
<li title="form_list-1"><a href="erl_syntax.html#form_list-1">form_list/1</a></li>
<li title="form_list_elements-1"><a href="erl_syntax.html#form_list_elements-1">form_list_elements/1</a></li>
<li title="fun_expr-1"><a href="erl_syntax.html#fun_expr-1">fun_expr/1</a></li>
<li title="fun_expr_arity-1"><a href="erl_syntax.html#fun_expr_arity-1">fun_expr_arity/1</a></li>
<li title="fun_expr_clauses-1"><a href="erl_syntax.html#fun_expr_clauses-1">fun_expr_clauses/1</a></li>
<li title="function-2"><a href="erl_syntax.html#function-2">function/2</a></li>
<li title="function_arity-1"><a href="erl_syntax.html#function_arity-1">function_arity/1</a></li>
<li title="function_clauses-1"><a href="erl_syntax.html#function_clauses-1">function_clauses/1</a></li>
<li title="function_name-1"><a href="erl_syntax.html#function_name-1">function_name/1</a></li>
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<li title="generator_body-1"><a href="erl_syntax.html#generator_body-1">generator_body/1</a></li>
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<li title="get_ann-1"><a href="erl_syntax.html#get_ann-1">get_ann/1</a></li>
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<li title="has_comments-1"><a href="erl_syntax.html#has_comments-1">has_comments/1</a></li>
<li title="if_expr-1"><a href="erl_syntax.html#if_expr-1">if_expr/1</a></li>
<li title="if_expr_clauses-1"><a href="erl_syntax.html#if_expr_clauses-1">if_expr_clauses/1</a></li>
<li title="implicit_fun-1"><a href="erl_syntax.html#implicit_fun-1">implicit_fun/1</a></li>
<li title="implicit_fun-2"><a href="erl_syntax.html#implicit_fun-2">implicit_fun/2</a></li>
<li title="implicit_fun-3"><a href="erl_syntax.html#implicit_fun-3">implicit_fun/3</a></li>
<li title="implicit_fun_name-1"><a href="erl_syntax.html#implicit_fun_name-1">implicit_fun_name/1</a></li>
<li title="infix_expr-3"><a href="erl_syntax.html#infix_expr-3">infix_expr/3</a></li>
<li title="infix_expr_left-1"><a href="erl_syntax.html#infix_expr_left-1">infix_expr_left/1</a></li>
<li title="infix_expr_operator-1"><a href="erl_syntax.html#infix_expr_operator-1">infix_expr_operator/1</a></li>
<li title="infix_expr_right-1"><a href="erl_syntax.html#infix_expr_right-1">infix_expr_right/1</a></li>
<li title="integer-1"><a href="erl_syntax.html#integer-1">integer/1</a></li>
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<li title="is_form-1"><a href="erl_syntax.html#is_form-1">is_form/1</a></li>
<li title="is_integer-2"><a href="erl_syntax.html#is_integer-2">is_integer/2</a></li>
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<li title="list-2"><a href="erl_syntax.html#list-2">list/2</a></li>
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<li title="module_qualifier_argument-1"><a href="erl_syntax.html#module_qualifier_argument-1">module_qualifier_argument/1</a></li>
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<div id="content">
<div class="innertube">
<!-- refpage --><center><h1>epp_dodger</h1></center>
<h3>MODULE</h3>
<div class="REFBODY">epp_dodger</div>
<h3>MODULE SUMMARY</h3>
<div class="REFBODY">epp_dodger - bypasses the Erlang preprocessor.</div>
<h3>DESCRIPTION</h3>
<div class="REFBODY"><p>
<p><span class="code">epp_dodger</span> - bypasses the Erlang preprocessor.</p>
<p>This module tokenises and parses most Erlang source code without
expanding preprocessor directives and macro applications, as long as
these are syntactically "well-behaved". Because the normal parse
trees of the <span class="code">erl_parse</span> module cannot represent these things
(normally, they are expanded by the Erlang preprocessor <span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','stdlib','epp.html');">epp(3)</a></span> before the parser sees them), an extended syntax tree
is created, using the <span class="bold_code"><a href="erl_syntax.html">erl_syntax</a></span> module.</p></p></div>
<h3><a name="id70171">DATA TYPES</a></h3>
<div class="REFBODY">
<a name="types"></a>
<dl>
<dt><strong><span class="code">errorinfo() = {ErrorLine::integer(), Module::atom(), Descriptor::term()}</span></strong></dt>
<dd>
<a name="type-errorinfo"></a>
<p>This is a so-called Erlang I/O ErrorInfo structure; see the <span class="bold_code"><a href="javascript:erlhref('../../../../doc/../','stdlib','io.html');">io(3)</a></span> module for details.</p>
</dd>
</dl>
</div>
<h3>EXPORTS</h3>
<p><a name="parse-1"><span class="bold_code">parse(Dev::IODevice) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY"><p><a name="parse-1"></a>
<p>Equivalent to <span class="bold_code"><a href="#parse-2">parse(IODevice, 1)</a></span>.</p>
</p></div>
<p><a name="parse-2"><span class="bold_code">parse(Dev::IODevice, L::StartLine) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse-2"></a>
<p>Equivalent to <span class="bold_code"><a href="#parse-3">parse(IODevice, StartLine, [])</a></span>.</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-1">parse/1</a></span>.</p>
</p></div>
<p><a name="parse-3"><span class="bold_code">parse(Dev::IODevice, L0::StartLine, Options) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse-3"></a>
<p>Reads and parses program text from an I/O stream. Characters are
read from <span class="code">IODevice</span> until end-of-file; apart from this, the
behaviour is the same as for <span class="bold_code"><a href="#parse_file-2">parse_file/2</a></span>. <span class="code">StartLine</span> is the
initial line number, which should be a positive integer.
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-2">parse/2</a></span>, <span class="bold_code"><a href="#parse_file-2">parse_file/2</a></span>, <span class="bold_code"><a href="#parse_form-2">parse_form/2</a></span>, <span class="bold_code"><a href="#quick_parse-3">quick_parse/3</a></span>.</p>
</p></div>
<p><a name="parse_file-1"><span class="bold_code">parse_file(File) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">File = filename() (see module file)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse_file-1"></a>
<p>Equivalent to <span class="bold_code"><a href="#parse_file-2">parse_file(File, [])</a></span>.</p>
</p></div>
<p><a name="parse_file-2"><span class="bold_code">parse_file(File, Options) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">File = filename() (see module file)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse_file-2"></a>
<p>Reads and parses a file. If successful, <span class="code">{ok, Forms}</span>
is returned, where <span class="code">Forms</span> is a list of abstract syntax
trees representing the "program forms" of the file (cf.
<span class="code">erl_syntax:is_form/1</span>). Otherwise, <span class="code">{error, errorinfo()}</span> is
returned, typically if the file could not be opened. Note that
parse errors show up as error markers in the returned list of
forms; they do not cause this function to fail or return
<span class="code">{error, errorinfo()}</span>.</p>
<p>Options:
</p><dl>
<dt><strong><span class="code">{no_fail, boolean()}</span></strong></dt>
<dd><p>If <span class="code">true</span>, this makes <span class="code">epp_dodger</span> replace any program forms
that could not be parsed with nodes of type <span class="code">text</span> (see <span class="bold_code"><a href="erl_syntax.html#text-1">erl_syntax:text/1</a></span>), representing the raw token sequence of the
form, instead of reporting a parse error. The default value is
<span class="code">false</span>.</p></dd>
<dt><strong><span class="code">{clever, boolean()}</span></strong></dt>
<dd><p>If set to <span class="code">true</span>, this makes <span class="code">epp_dodger</span> try to repair the
source code as it seems fit, in certain cases where parsing would
otherwise fail. Currently, it inserts <span class="code">++</span>-operators between string
literals and macros where it looks like concatenation was intended.
The default value is <span class="code">false</span>.</p></dd>
</dl><p>
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-2">parse/2</a></span>, <span class="bold_code"><a href="#quick_parse_file-1">quick_parse_file/1</a></span>, <span class="bold_code"><a href="erl_syntax.html#is_form-1">erl_syntax:is_form/1</a></span>.</p>
</p></div>
<p><a name="parse_form-2"><span class="bold_code">parse_form(Dev::IODevice, L0::StartLine) -> {ok, Form, LineNo} | {eof, LineNo} | {error, errorinfo(), LineNo}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Form = syntaxTree() (see module erl_syntax)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">LineNo = integer()</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse_form-2"></a>
<p>Equivalent to <span class="bold_code"><a href="#parse_form-3">parse_form(IODevice, StartLine, [])</a></span>.</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#quick_parse_form-2">quick_parse_form/2</a></span>.</p>
</p></div>
<p><a name="parse_form-3"><span class="bold_code">parse_form(Dev::IODevice, L0::StartLine, Options) -> {ok, Form, LineNo} | {eof, LineNo} | {error, errorinfo(), LineNo}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Form = syntaxTree() (see module erl_syntax)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">LineNo = integer()</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="parse_form-3"></a>
<p>Reads and parses a single program form from an I/O stream.
Characters are read from <span class="code">IODevice</span> until an end-of-form
marker is found (a period character followed by whitespace), or until
end-of-file; apart from this, the behaviour is similar to that of
<span class="code">parse/3</span>, except that the return values also contain the
final line number given that <span class="code">StartLine</span> is the initial
line number, and that <span class="code">{eof, LineNo}</span> may be returned.
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-3">parse/3</a></span>, <span class="bold_code"><a href="#parse_form-2">parse_form/2</a></span>, <span class="bold_code"><a href="#quick_parse_form-3">quick_parse_form/3</a></span>.</p>
</p></div>
<p><a name="quick_parse-1"><span class="bold_code">quick_parse(Dev::IODevice) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY"><p><a name="quick_parse-1"></a>
<p>Equivalent to <span class="bold_code"><a href="#quick_parse-2">quick_parse(IODevice, 1)</a></span>.</p>
</p></div>
<p><a name="quick_parse-2"><span class="bold_code">quick_parse(Dev::IODevice, L::StartLine) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse-2"></a>
<p>Equivalent to <span class="bold_code"><a href="#quick_parse-3">quick_parse(IODevice, StartLine, [])</a></span>.</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#quick_parse-1">quick_parse/1</a></span>.</p>
</p></div>
<p><a name="quick_parse-3"><span class="bold_code">quick_parse(Dev::IODevice, L0::StartLine, Options) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse-3"></a>
<p>Similar to <span class="bold_code"><a href="#parse-3">parse/3</a></span>, but does a more quick-and-dirty
processing of the code. See <span class="bold_code"><a href="#quick_parse_file-2">quick_parse_file/2</a></span> for details.
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-3">parse/3</a></span>, <span class="bold_code"><a href="#quick_parse-2">quick_parse/2</a></span>, <span class="bold_code"><a href="#quick_parse_file-2">quick_parse_file/2</a></span>, <span class="bold_code"><a href="#quick_parse_form-2">quick_parse_form/2</a></span>.</p>
</p></div>
<p><a name="quick_parse_file-1"><span class="bold_code">quick_parse_file(File) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">File = filename() (see module file)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse_file-1"></a>
<p>Equivalent to <span class="bold_code"><a href="#quick_parse_file-2">quick_parse_file(File, [])</a></span>.</p>
</p></div>
<p><a name="quick_parse_file-2"><span class="bold_code">quick_parse_file(File, Options) -> {ok, Forms} | {error, errorinfo()}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">File = filename() (see module file)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Forms = [syntaxTree() (see module erl_syntax)]</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse_file-2"></a>
<p>Similar to <span class="bold_code"><a href="#parse_file-2">parse_file/2</a></span>, but does a more quick-and-dirty
processing of the code. Macro definitions and other preprocessor
directives are discarded, and all macro calls are replaced with
atoms. This is useful when only the main structure of the code is of
interest, and not the details. Furthermore, the quick-parse method
can usually handle more strange cases than the normal, more exact
parsing.</p>
<p>Options: see <span class="bold_code"><a href="#parse_file-2">parse_file/2</a></span>. Note however that for
<span class="code">quick_parse_file/2</span>, the option <span class="code">no_fail</span> is <span class="code">true</span> by default.
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse_file-2">parse_file/2</a></span>, <span class="bold_code"><a href="#quick_parse-2">quick_parse/2</a></span>.</p>
</p></div>
<p><a name="quick_parse_form-2"><span class="bold_code">quick_parse_form(Dev::IODevice, L0::StartLine) -> {ok, Form, LineNo} | {eof, LineNo} | {error, errorinfo(), LineNo}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Form = syntaxTree() (see module erl_syntax) | none</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">LineNo = integer()</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse_form-2"></a>
<p>Equivalent to <span class="bold_code"><a href="#quick_parse_form-3">quick_parse_form(IODevice, StartLine, [])</a></span>.</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse_form-2">parse_form/2</a></span>.</p>
</p></div>
<p><a name="quick_parse_form-3"><span class="bold_code">quick_parse_form(Dev::IODevice, L0::StartLine, Options) -> {ok, Form, LineNo} | {eof, LineNo} | {error, errorinfo(), LineNo}</span></a><br></p>
<div class="REFBODY">
<p>Types:</p>
<div class="REFTYPES">
<span class="bold_code">IODevice = pid()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">StartLine = integer()</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Options = [term()]</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">Form = syntaxTree() (see module erl_syntax)</span><br>
</div>
<div class="REFTYPES">
<span class="bold_code">LineNo = integer()</span><br>
</div>
</div>
<div class="REFBODY"><p><a name="quick_parse_form-3"></a>
<p>Similar to <span class="bold_code"><a href="#parse_form-3">parse_form/3</a></span>, but does a more quick-and-dirty
processing of the code. See <span class="bold_code"><a href="#quick_parse_file-2">quick_parse_file/2</a></span> for details.
</p>
<p><strong>See also:</strong> <span class="bold_code"><a href="#parse-3">parse/3</a></span>, <span class="bold_code"><a href="#parse_form-3">parse_form/3</a></span>, <span class="bold_code"><a href="#quick_parse_form-2">quick_parse_form/2</a></span>.</p>
</p></div>
<p><a name="tokens_to_string-1"><span class="bold_code">tokens_to_string(Tokens::[term()]) -> string()</span></a><br></p>
<div class="REFBODY"><p><a name="tokens_to_string-1"></a>
<p>Generates a string corresponding to the given token sequence.
The string can be re-tokenized to yield the same token list again.</p>
</p></div>
Richard Carlsson
carlsson.richard@gmail.com</div>
<div class="footer">
<hr>
<p>Copyright © 2006-2012 Ericsson AB. All Rights Reserved.</p>
</div>
</div>
</div></body>
</html>
distrib
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Fedora
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17
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i386
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media
>
updates
>
by-pkgid
>
675c8c8167236dfcf8d66da674f931e8
>
files
>
1455
