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<title>src/Text/Pandoc/Highlighting.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-
<a name="line-2"></a>Copyright (C) 2008 John MacFarlane <jgm@berkeley.edu>
<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 : Text.Pandoc.Highlighting
<a name="line-21"></a> Copyright : Copyright (C) 2008 John MacFarlane
<a name="line-22"></a> License : GNU GPL, version 2 or above
<a name="line-23"></a>
<a name="line-24"></a> Maintainer : John MacFarlane <jgm@berkeley.edu>
<a name="line-25"></a> Stability : alpha
<a name="line-26"></a> Portability : portable
<a name="line-27"></a>
<a name="line-28"></a>Exports functions for syntax highlighting.
<a name="line-29"></a>-}</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Pandoc</span><span class='hs-varop'>.</span><span class='hs-conid'>Highlighting</span> <span class='hs-layout'>(</span> <span class='hs-varid'>languages</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>languagesByExtension</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>highlight</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>formatLaTeXInline</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>formatLaTeXBlock</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>styleToLaTeX</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>formatHtmlInline</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>formatHtmlBlock</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>styleToCss</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>pygments</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>espresso</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>zenburn</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>tango</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>kate</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>monochrome</span>
<a name="line-46"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>haddock</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Style</span>
<a name="line-48"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Pandoc</span><span class='hs-varop'>.</span><span class='hs-conid'>Definition</span>
<a name="line-50"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Highlighting</span><span class='hs-varop'>.</span><span class='hs-conid'>Kate</span>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>find</span><span class='hs-layout'>)</span>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>toLower</span><span class='hs-layout'>)</span>
<a name="line-54"></a>
<a name="line-55"></a><a name="lcLanguages"></a><span class='hs-definition'>lcLanguages</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-56"></a><span class='hs-definition'>lcLanguages</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span><span class='hs-layout'>)</span> <span class='hs-varid'>languages</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="highlight"></a><span class='hs-definition'>highlight</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>FormatOptions</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>SourceLine</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ Formatter</span>
<a name="line-59"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Attr</span> <span class='hs-comment'>-- ^ Attributes of the CodeBlock</span>
<a name="line-60"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ Raw contents of the CodeBlock</span>
<a name="line-61"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span> <span class='hs-comment'>-- ^ Maybe the formatted result</span>
<a name="line-62"></a><span class='hs-definition'>highlight</span> <span class='hs-varid'>formatter</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>classes</span><span class='hs-layout'>,</span> <span class='hs-varid'>keyvals</span><span class='hs-layout'>)</span> <span class='hs-varid'>rawCode</span> <span class='hs-keyglyph'>=</span>
<a name="line-63"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>firstNum</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>reads</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMaybe</span> <span class='hs-str'>"1"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"startFrom"</span> <span class='hs-varid'>keyvals</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-64"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>n</span>
<a name="line-65"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-num'>1</span>
<a name="line-66"></a> <span class='hs-varid'>fmtOpts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defaultFormatOpts</span><span class='hs-layout'>{</span>
<a name="line-67"></a> <span class='hs-varid'>startNumber</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>firstNum</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-varid'>numberLines</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span>
<a name="line-69"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>"number"</span><span class='hs-layout'>,</span><span class='hs-str'>"numberLines"</span><span class='hs-layout'>,</span> <span class='hs-str'>"number-lines"</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varid'>classes</span> <span class='hs-layout'>}</span>
<a name="line-70"></a> <span class='hs-varid'>lcclasses</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span><span class='hs-layout'>)</span> <span class='hs-varid'>classes</span>
<a name="line-71"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>find</span> <span class='hs-layout'>(</span><span class='hs-varop'>`elem`</span> <span class='hs-varid'>lcLanguages</span><span class='hs-layout'>)</span> <span class='hs-varid'>lcclasses</span> <span class='hs-keyword'>of</span>
<a name="line-72"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-73"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>language</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span>
<a name="line-74"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>formatter</span> <span class='hs-varid'>fmtOpts</span><span class='hs-layout'>{</span> <span class='hs-varid'>codeClasses</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>language</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-varid'>containerClasses</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>classes</span> <span class='hs-layout'>}</span>
<a name="line-76"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>highlightAs</span> <span class='hs-varid'>language</span> <span class='hs-varid'>rawCode</span>
<a name="line-77"></a>
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