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<pre><a name="line-1"></a><span class='hs-comment'>{- arch-tag: Parser for Debian control file
<a name="line-2"></a>Copyright (C) 2004 John Goerzen <jgoerzen@complete.org>
<a name="line-3"></a>
<a name="line-4"></a>This program is free software; you can redistribute it and/or modify
<a name="line-5"></a>it under the terms of the GNU General Public License as published by
<a name="line-6"></a>the Free Software Foundation; either version 2 of the License, or
<a name="line-7"></a>(at your option) any later version.
<a name="line-8"></a>
<a name="line-9"></a>This program is distributed in the hope that it will be useful,
<a name="line-10"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of
<a name="line-11"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<a name="line-12"></a>GNU General Public License for more details.
<a name="line-13"></a>
<a name="line-14"></a>You should have received a copy of the GNU General Public License
<a name="line-15"></a>along with this program; if not, write to the Free Software
<a name="line-16"></a>Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
<a name="line-17"></a>-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{- |
<a name="line-20"></a> Module : System.Debian.ControlParser
<a name="line-21"></a> Copyright : Copyright (C) 2004 John Goerzen
<a name="line-22"></a> License : GNU GPL, version 2 or above
<a name="line-23"></a>
<a name="line-24"></a> Maintainer : John Goerzen <jgoerzen@complete.org>
<a name="line-25"></a> Stability : provisional
<a name="line-26"></a> Portability: portable
<a name="line-27"></a>
<a name="line-28"></a>This module provides various helpful utilities for dealing with Debian
<a name="line-29"></a>files and programs.
<a name="line-30"></a>
<a name="line-31"></a>Written by John Goerzen, jgoerzen\@complete.org
<a name="line-32"></a>-}</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Debian</span><span class='hs-varop'>.</span><span class='hs-conid'>ControlParser</span><span class='hs-layout'>(</span><span class='hs-varid'>control</span><span class='hs-layout'>,</span> <span class='hs-varid'>depPart</span><span class='hs-layout'>)</span>
<a name="line-35"></a> <span class='hs-keyword'>where</span>
<a name="line-36"></a>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>ParserCombinators</span><span class='hs-varop'>.</span><span class='hs-conid'>Parsec</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span> <span class='hs-layout'>(</span><span class='hs-varid'>split</span><span class='hs-layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="eol"></a><span class='hs-definition'>eol</span><span class='hs-layout'>,</span> <span class='hs-varid'>extline</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GenParser</span> <span class='hs-conid'>Char</span> <span class='hs-varid'>st</span> <span class='hs-conid'>String</span>
<a name="line-41"></a><span class='hs-definition'>eol</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>try</span> <span class='hs-layout'>(</span><span class='hs-varid'>string</span> <span class='hs-str'>"\r\n"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-42"></a> <span class='hs-varop'><|></span> <span class='hs-varid'>string</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'><?></span> <span class='hs-str'>"EOL"</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="extline"></a><span class='hs-definition'>extline</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>try</span> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>char</span> <span class='hs-chr'>' '</span>
<a name="line-45"></a> <span class='hs-varid'>content</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>"\r\n"</span><span class='hs-layout'>)</span>
<a name="line-46"></a> <span class='hs-varid'>eol</span>
<a name="line-47"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>content</span> <span class='hs-layout'>)</span>
<a name="line-48"></a>
<a name="line-49"></a><a name="entry"></a><span class='hs-definition'>entry</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GenParser</span> <span class='hs-conid'>Char</span> <span class='hs-varid'>st</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-50"></a><span class='hs-definition'>entry</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>key</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>":\r\n"</span><span class='hs-layout'>)</span>
<a name="line-51"></a> <span class='hs-varid'>char</span> <span class='hs-chr'>':'</span>
<a name="line-52"></a> <span class='hs-varid'>val</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>"\r\n"</span><span class='hs-layout'>)</span>
<a name="line-53"></a> <span class='hs-varid'>eol</span>
<a name="line-54"></a> <span class='hs-varid'>exts</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many</span> <span class='hs-varid'>extline</span>
<a name="line-55"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>key</span><span class='hs-layout'>,</span> <span class='hs-varid'>unlines</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>val</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>exts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-56"></a>
<a name="line-57"></a><a name="control"></a><span class='hs-comment'>{- | Main parser for the control file -}</span>
<a name="line-58"></a><span class='hs-definition'>control</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CharParser</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-59"></a><span class='hs-definition'>control</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>many</span> <span class='hs-varid'>header</span>
<a name="line-60"></a> <span class='hs-varid'>retval</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many</span> <span class='hs-varid'>entry</span>
<a name="line-61"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>retval</span>
<a name="line-62"></a>
<a name="line-63"></a><a name="headerPGP"></a><span class='hs-definition'>headerPGP</span><span class='hs-layout'>,</span> <span class='hs-varid'>blankLine</span><span class='hs-layout'>,</span> <span class='hs-varid'>header</span><span class='hs-layout'>,</span> <span class='hs-varid'>headerHash</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GenParser</span> <span class='hs-conid'>Char</span> <span class='hs-varid'>st</span> <span class='hs-conid'>()</span>
<a name="line-64"></a><span class='hs-definition'>headerPGP</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>string</span> <span class='hs-str'>"-----BEGIN PGP"</span>
<a name="line-65"></a> <span class='hs-varid'>manyTill</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>"\r\n"</span><span class='hs-layout'>)</span> <span class='hs-varid'>eol</span>
<a name="line-66"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-67"></a><a name="blankLine"></a><span class='hs-definition'>blankLine</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>oneOf</span> <span class='hs-str'>" \t"</span><span class='hs-layout'>)</span>
<a name="line-68"></a> <span class='hs-varid'>eol</span>
<a name="line-69"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-70"></a><a name="headerHash"></a><span class='hs-definition'>headerHash</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>string</span> <span class='hs-str'>"Hash: "</span>
<a name="line-71"></a> <span class='hs-varid'>manyTill</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>"\r\n"</span><span class='hs-layout'>)</span> <span class='hs-varid'>eol</span>
<a name="line-72"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-73"></a><a name="header"></a><span class='hs-definition'>header</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>try</span> <span class='hs-varid'>headerPGP</span><span class='hs-layout'>)</span> <span class='hs-varop'><|></span> <span class='hs-layout'>(</span><span class='hs-varid'>try</span> <span class='hs-varid'>blankLine</span><span class='hs-layout'>)</span> <span class='hs-varop'><|></span> <span class='hs-layout'>(</span><span class='hs-varid'>try</span> <span class='hs-varid'>headerHash</span><span class='hs-layout'>)</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="depPart"></a><span class='hs-comment'>{- | Dependency parser.
<a name="line-76"></a>
<a name="line-77"></a>Returns (package name, Maybe version, arch list)
<a name="line-78"></a>
<a name="line-79"></a>version is (operator, operand) -}</span>
<a name="line-80"></a><span class='hs-definition'>depPart</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CharParser</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-81"></a><span class='hs-definition'>depPart</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>packagename</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>" ("</span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span>
<a name="line-83"></a> <span class='hs-varid'>version</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>char</span> <span class='hs-chr'>'('</span>
<a name="line-84"></a> <span class='hs-varid'>op</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>oneOf</span> <span class='hs-str'>"<>="</span><span class='hs-layout'>)</span>
<a name="line-85"></a> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span>
<a name="line-86"></a> <span class='hs-varid'>vers</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>") "</span><span class='hs-layout'>)</span>
<a name="line-87"></a> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-varid'>char</span> <span class='hs-chr'>')'</span>
<a name="line-89"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>op</span><span class='hs-layout'>,</span> <span class='hs-varid'>vers</span><span class='hs-layout'>)</span>
<a name="line-90"></a> <span class='hs-layout'>)</span> <span class='hs-varop'><|></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-91"></a> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span>
<a name="line-92"></a> <span class='hs-varid'>archs</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>char</span> <span class='hs-chr'>'['</span>
<a name="line-93"></a> <span class='hs-varid'>t</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>many1</span> <span class='hs-layout'>(</span><span class='hs-varid'>noneOf</span> <span class='hs-str'>"]"</span><span class='hs-layout'>)</span>
<a name="line-94"></a> <span class='hs-varid'>many</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span>
<a name="line-95"></a> <span class='hs-varid'>char</span> <span class='hs-chr'>']'</span>
<a name="line-96"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>split</span> <span class='hs-str'>" "</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-97"></a> <span class='hs-layout'>)</span> <span class='hs-varop'><|></span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span>
<a name="line-98"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>packagename</span><span class='hs-layout'>,</span> <span class='hs-varid'>version</span><span class='hs-layout'>,</span> <span class='hs-varid'>archs</span><span class='hs-layout'>)</span>
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