<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>Language/Haskell/HsColour/Colourise.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>HsColour</span><span class='hs-varop'>.</span><span class='hs-conid'>Colourise</span>
<a name="line-2"></a> <span class='hs-layout'>(</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>HsColour</span><span class='hs-varop'>.</span><span class='hs-conid'>ColourHighlight</span>
<a name="line-3"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>ColourPrefs</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-4"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>readColourPrefs</span>
<a name="line-5"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>defaultColourPrefs</span>
<a name="line-6"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>colourise</span>
<a name="line-7"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-8"></a>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>HsColour</span><span class='hs-varop'>.</span><span class='hs-conid'>ColourHighlight</span>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>HsColour</span><span class='hs-varop'>.</span><span class='hs-conid'>Classify</span> <span class='hs-layout'>(</span><span class='hs-conid'>TokenType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-11"></a>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-varid'>hPutStrLn</span><span class='hs-layout'>,</span><span class='hs-varid'>stderr</span><span class='hs-layout'>)</span>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span> <span class='hs-layout'>(</span><span class='hs-varid'>getEnv</span><span class='hs-layout'>)</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>List</span>
<a name="line-15"></a>
<a name="line-16"></a><a name="ColourPrefs"></a><span class='hs-comment'>-- | Colour preferences.</span>
<a name="line-17"></a><a name="ColourPrefs"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ColourPrefs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ColourPrefs</span>
<a name="line-18"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>keyword</span><span class='hs-layout'>,</span> <span class='hs-varid'>keyglyph</span><span class='hs-layout'>,</span> <span class='hs-varid'>layout</span><span class='hs-layout'>,</span> <span class='hs-varid'>comment</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>conid</span><span class='hs-layout'>,</span> <span class='hs-varid'>varid</span><span class='hs-layout'>,</span> <span class='hs-varid'>conop</span><span class='hs-layout'>,</span> <span class='hs-varid'>varop</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>string</span><span class='hs-layout'>,</span> <span class='hs-varid'>char</span><span class='hs-layout'>,</span> <span class='hs-varid'>number</span><span class='hs-layout'>,</span> <span class='hs-varid'>cpp</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>selection</span><span class='hs-layout'>,</span> <span class='hs-varid'>variantselection</span><span class='hs-layout'>,</span> <span class='hs-varid'>definition</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Highlight</span><span class='hs-keyglyph'>]</span>
<a name="line-22"></a> <span class='hs-layout'>}</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span><span class='hs-conid'>Read</span><span class='hs-layout'>)</span>
<a name="line-23"></a>
<a name="line-24"></a><a name="defaultColourPrefs"></a><span class='hs-definition'>defaultColourPrefs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ColourPrefs</span>
<a name="line-25"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>keyword</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Green</span><span class='hs-layout'>,</span><span class='hs-conid'>Underscore</span><span class='hs-keyglyph'>]</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>keyglyph</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Red</span><span class='hs-keyglyph'>]</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>layout</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Cyan</span><span class='hs-keyglyph'>]</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>comment</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Blue</span><span class='hs-layout'>,</span> <span class='hs-conid'>Italic</span><span class='hs-keyglyph'>]</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>conid</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Normal</span><span class='hs-keyglyph'>]</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>varid</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Normal</span><span class='hs-keyglyph'>]</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>conop</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Red</span><span class='hs-layout'>,</span><span class='hs-conid'>Bold</span><span class='hs-keyglyph'>]</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>varop</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Cyan</span><span class='hs-keyglyph'>]</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>string</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Magenta</span><span class='hs-keyglyph'>]</span>
<a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>char</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Magenta</span><span class='hs-keyglyph'>]</span>
<a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>number</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Magenta</span><span class='hs-keyglyph'>]</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>cpp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Magenta</span><span class='hs-layout'>,</span><span class='hs-conid'>Dim</span><span class='hs-keyglyph'>]</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>selection</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Bold</span><span class='hs-layout'>,</span> <span class='hs-conid'>Foreground</span> <span class='hs-conid'>Magenta</span><span class='hs-keyglyph'>]</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>variantselection</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Dim</span><span class='hs-layout'>,</span> <span class='hs-conid'>Foreground</span> <span class='hs-conid'>Red</span><span class='hs-layout'>,</span> <span class='hs-conid'>Underscore</span><span class='hs-keyglyph'>]</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>definition</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Foreground</span> <span class='hs-conid'>Blue</span><span class='hs-keyglyph'>]</span>
<a name="line-40"></a> <span class='hs-layout'>}</span>
<a name="line-41"></a>
<a name="line-42"></a><a name="parseColourPrefs"></a><span class='hs-comment'>-- NOTE, should we give a warning message on a failed reading?</span>
<a name="line-43"></a><span class='hs-definition'>parseColourPrefs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ColourPrefs</span>
<a name="line-44"></a><span class='hs-definition'>parseColourPrefs</span> <span class='hs-varid'>file</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span>
<a name="line-45"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>reads</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-46"></a> <span class='hs-layout'>(</span><span class='hs-varid'>res</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-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>res</span>
<a name="line-47"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>hPutStrLn</span> <span class='hs-varid'>stderr</span> <span class='hs-layout'>(</span><span class='hs-str'>"Could not parse colour prefs from "</span><span class='hs-varop'>++</span><span class='hs-varid'>file</span>
<a name="line-48"></a> <span class='hs-varop'>++</span><span class='hs-str'>": reverting to defaults"</span><span class='hs-layout'>)</span>
<a name="line-49"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>defaultColourPrefs</span>
<a name="line-50"></a>
<a name="line-51"></a><a name="readColourPrefs"></a><span class='hs-comment'>-- | Read colour preferences from .hscolour file in the current directory, or failing that,</span>
<a name="line-52"></a><span class='hs-comment'>-- from \$HOME\/.hscolour, and failing that, returns a default set of prefs.</span>
<a name="line-53"></a><span class='hs-definition'>readColourPrefs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ColourPrefs</span>
<a name="line-54"></a><span class='hs-definition'>readColourPrefs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>catch</span>
<a name="line-55"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>val</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readFile</span> <span class='hs-str'>".hscolour"</span>
<a name="line-56"></a> <span class='hs-varid'>parseColourPrefs</span> <span class='hs-str'>".hscolour"</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span>
<a name="line-57"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span><span class='hs-keyglyph'>-></span> <span class='hs-varid'>catch</span>
<a name="line-58"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-varid'>home</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getEnv</span> <span class='hs-str'>"HOME"</span>
<a name="line-59"></a> <span class='hs-varid'>val</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readFile</span> <span class='hs-layout'>(</span><span class='hs-varid'>home</span><span class='hs-varop'>++</span><span class='hs-str'>"/.hscolour"</span><span class='hs-layout'>)</span>
<a name="line-60"></a> <span class='hs-varid'>parseColourPrefs</span> <span class='hs-layout'>(</span><span class='hs-varid'>home</span><span class='hs-varop'>++</span><span class='hs-str'>"/.hscolour"</span><span class='hs-layout'>)</span> <span class='hs-varid'>val</span><span class='hs-layout'>)</span>
<a name="line-61"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span><span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varid'>defaultColourPrefs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-62"></a>
<a name="line-63"></a><a name="colourise"></a><span class='hs-comment'>-- | Convert token classification to colour highlights.</span>
<a name="line-64"></a><span class='hs-definition'>colourise</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ColourPrefs</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>TokenType</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Highlight</span><span class='hs-keyglyph'>]</span>
<a name="line-65"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Space</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Normal</span><span class='hs-keyglyph'>]</span>
<a name="line-66"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Comment</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>comment</span> <span class='hs-varid'>pref</span>
<a name="line-67"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Keyword</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>keyword</span> <span class='hs-varid'>pref</span>
<a name="line-68"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Keyglyph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>keyglyph</span> <span class='hs-varid'>pref</span>
<a name="line-69"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Layout</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>layout</span> <span class='hs-varid'>pref</span>
<a name="line-70"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Conid</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>conid</span> <span class='hs-varid'>pref</span>
<a name="line-71"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Varid</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>varid</span> <span class='hs-varid'>pref</span>
<a name="line-72"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Conop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>conop</span> <span class='hs-varid'>pref</span>
<a name="line-73"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Varop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>varop</span> <span class='hs-varid'>pref</span>
<a name="line-74"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>string</span> <span class='hs-varid'>pref</span>
<a name="line-75"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>char</span> <span class='hs-varid'>pref</span>
<a name="line-76"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Number</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>number</span> <span class='hs-varid'>pref</span>
<a name="line-77"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Cpp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cpp</span> <span class='hs-varid'>pref</span>
<a name="line-78"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Error</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>selection</span> <span class='hs-varid'>pref</span>
<a name="line-79"></a><span class='hs-definition'>colourise</span> <span class='hs-varid'>pref</span> <span class='hs-conid'>Definition</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>definition</span> <span class='hs-varid'>pref</span>
<a name="line-80"></a>
</pre></body>
</html>
