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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>--</span>
<a name="line-3"></a><span class='hs-comment'>-- Command-line parser</span>
<a name="line-4"></a><span class='hs-comment'>--</span>
<a name="line-5"></a><span class='hs-comment'>-- This is an abstract command-line parser used by both StaticFlags and</span>
<a name="line-6"></a><span class='hs-comment'>-- DynFlags.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- (c) The University of Glasgow 2005</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-11"></a>
<a name="line-12"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>CmdLineParser</span> <span class='hs-layout'>(</span>
<a name="line-13"></a> <span class='hs-varid'>processArgs</span><span class='hs-layout'>,</span> <span class='hs-conid'>OptKind</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-14"></a> <span class='hs-conid'>CmdLineP</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>getCmdLineState</span><span class='hs-layout'>,</span> <span class='hs-varid'>putCmdLineState</span><span class='hs-layout'>,</span>
<a name="line-15"></a> <span class='hs-conid'>Flag</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Deprecated</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-16"></a> <span class='hs-varid'>errorsToGhcException</span>
<a name="line-17"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-cpp'>#include "HsVersions.h"</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Util</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Outputable</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Panic</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SrcLoc</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-27"></a>
<a name="line-28"></a><a name="Flag"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Flag</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Flag</span>
<a name="line-29"></a> <span class='hs-layout'>{</span>
<a name="line-30"></a> <span class='hs-varid'>flagName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- flag, without the leading -</span>
<a name="line-31"></a> <span class='hs-varid'>flagOptKind</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>OptKind</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- what to do if we see it</span>
<a name="line-32"></a> <span class='hs-varid'>flagDeprecated</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Deprecated</span> <span class='hs-comment'>-- is the flag deprecated?</span>
<a name="line-33"></a> <span class='hs-layout'>}</span>
<a name="line-34"></a>
<a name="line-35"></a><a name="Deprecated"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Deprecated</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Supported</span>
<a name="line-36"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Deprecated</span> <span class='hs-conid'>String</span>
<a name="line-37"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DeprecatedFullText</span> <span class='hs-conid'>String</span>
<a name="line-38"></a>
<a name="line-39"></a><a name="OptKind"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>OptKind</span> <span class='hs-varid'>m</span> <span class='hs-comment'>-- Suppose the flag is -f</span>
<a name="line-40"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NoArg</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f all by itself</span>
<a name="line-41"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>HasArg</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -farg or -f arg</span>
<a name="line-42"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SepArg</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f arg</span>
<a name="line-43"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Prefix</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -farg</span>
<a name="line-44"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OptPrefix</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f or -farg (i.e. the arg is optional)</span>
<a name="line-45"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OptIntSuffix</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f or -f=n; pass n to fn</span>
<a name="line-46"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IntSuffix</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f or -f=n; pass n to fn</span>
<a name="line-47"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PassFlag</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f; pass "-f" fn</span>
<a name="line-48"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AnySuffix</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- -f or -farg; pass entire "-farg" to fn</span>
<a name="line-49"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PrefixPred</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-50"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AnySuffixPred</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-51"></a>
<a name="line-52"></a><a name="processArgs"></a><span class='hs-definition'>processArgs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span>
<a name="line-53"></a> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Flag</span> <span class='hs-varid'>m</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- cmdline parser spec</span>
<a name="line-54"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- args</span>
<a name="line-55"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span>
<a name="line-56"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- spare args</span>
<a name="line-57"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- errors</span>
<a name="line-58"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>-- warnings</span>
<a name="line-59"></a> <span class='hs-layout'>)</span>
<a name="line-60"></a><span class='hs-definition'>processArgs</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>args</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>args</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span>
<a name="line-61"></a> <span class='hs-keyword'>where</span>
<a name="line-62"></a> <span class='hs-varid'>process</span> <span class='hs-sel'>_spec</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>spare</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns</span> <span class='hs-keyglyph'>=</span>
<a name="line-63"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>spare</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>errs</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>warns</span><span class='hs-layout'>)</span>
<a name="line-64"></a>
<a name="line-65"></a> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-layout'>(</span><span class='hs-varid'>locArg</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>dash_arg</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-chr'>'-'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>arg</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span> <span class='hs-varid'>spare</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns</span> <span class='hs-keyglyph'>=</span>
<a name="line-66"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>findArg</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>arg</span> <span class='hs-keyword'>of</span>
<a name="line-67"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>rest</span><span class='hs-layout'>,</span> <span class='hs-varid'>action</span><span class='hs-layout'>,</span> <span class='hs-varid'>deprecated</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-68"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>warns'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>deprecated</span> <span class='hs-keyword'>of</span>
<a name="line-69"></a> <span class='hs-conid'>Deprecated</span> <span class='hs-varid'>warning</span> <span class='hs-keyglyph'>-></span>
<a name="line-70"></a> <span class='hs-conid'>L</span> <span class='hs-varid'>loc</span> <span class='hs-layout'>(</span><span class='hs-str'>"Warning: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>dash_arg</span> <span class='hs-varop'>++</span> <span class='hs-str'>" is deprecated: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>warning</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>warns</span>
<a name="line-71"></a> <span class='hs-conid'>DeprecatedFullText</span> <span class='hs-varid'>warning</span> <span class='hs-keyglyph'>-></span>
<a name="line-72"></a> <span class='hs-conid'>L</span> <span class='hs-varid'>loc</span> <span class='hs-layout'>(</span><span class='hs-str'>"Warning: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>warning</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>warns</span>
<a name="line-73"></a> <span class='hs-conid'>Supported</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>warns</span>
<a name="line-74"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>processOneArg</span> <span class='hs-varid'>action</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>args</span> <span class='hs-keyword'>of</span>
<a name="line-75"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>args</span> <span class='hs-varid'>spare</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>loc</span> <span class='hs-varid'>err</span> <span class='hs-conop'>:</span> <span class='hs-varid'>errs</span><span class='hs-layout'>)</span> <span class='hs-varid'>warns'</span>
<a name="line-76"></a> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>action</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>action</span>
<a name="line-77"></a> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>spare</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns'</span>
<a name="line-78"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>args</span> <span class='hs-layout'>(</span><span class='hs-varid'>locArg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>spare</span><span class='hs-layout'>)</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns</span>
<a name="line-79"></a>
<a name="line-80"></a> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-layout'>(</span><span class='hs-varid'>arg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span> <span class='hs-varid'>spare</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns</span> <span class='hs-keyglyph'>=</span>
<a name="line-81"></a> <span class='hs-varid'>process</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>args</span> <span class='hs-layout'>(</span><span class='hs-varid'>arg</span> <span class='hs-conop'>:</span> <span class='hs-varid'>spare</span><span class='hs-layout'>)</span> <span class='hs-varid'>errs</span> <span class='hs-varid'>warns</span>
<a name="line-82"></a>
<a name="line-83"></a>
<a name="line-84"></a><a name="processOneArg"></a><span class='hs-definition'>processOneArg</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OptKind</span> <span class='hs-varid'>m</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-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-85"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-86"></a><span class='hs-definition'>processOneArg</span> <span class='hs-varid'>action</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>arg</span> <span class='hs-varid'>args</span>
<a name="line-87"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>dash_arg</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'-'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>arg</span>
<a name="line-88"></a> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropEq</span> <span class='hs-varid'>rest</span>
<a name="line-89"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>action</span> <span class='hs-keyword'>of</span>
<a name="line-90"></a> <span class='hs-conid'>NoArg</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ASSERT</span><span class='hs-layout'>(</span><span class='hs-varid'>null</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-91"></a>
<a name="line-92"></a> <span class='hs-conid'>HasArg</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>rest_no_eq</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-93"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>args</span> <span class='hs-keyword'>of</span>
<a name="line-94"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>missingArgErr</span> <span class='hs-varid'>dash_arg</span>
<a name="line-95"></a> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>arg1</span><span class='hs-conop'>:</span><span class='hs-varid'>args1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>,</span> <span class='hs-varid'>args1</span><span class='hs-layout'>)</span>
<a name="line-96"></a>
<a name="line-97"></a> <span class='hs-conid'>SepArg</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>args</span> <span class='hs-keyword'>of</span>
<a name="line-98"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unknownFlagErr</span> <span class='hs-varid'>dash_arg</span>
<a name="line-99"></a> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>arg1</span><span class='hs-conop'>:</span><span class='hs-varid'>args1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>,</span> <span class='hs-varid'>args1</span><span class='hs-layout'>)</span>
<a name="line-100"></a>
<a name="line-101"></a> <span class='hs-conid'>Prefix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>rest_no_eq</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unknownFlagErr</span> <span class='hs-varid'>dash_arg</span>
<a name="line-103"></a>
<a name="line-104"></a> <span class='hs-conid'>PrefixPred</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>rest_no_eq</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-105"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unknownFlagErr</span> <span class='hs-varid'>dash_arg</span>
<a name="line-106"></a>
<a name="line-107"></a> <span class='hs-conid'>PassFlag</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unknownFlagErr</span> <span class='hs-varid'>dash_arg</span>
<a name="line-108"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>dash_arg</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-109"></a>
<a name="line-110"></a> <span class='hs-conid'>OptIntSuffix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parseInt</span> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-str'>"malformed integer argument in "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>dash_arg</span><span class='hs-layout'>)</span>
<a name="line-113"></a>
<a name="line-114"></a> <span class='hs-conid'>IntSuffix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parseInt</span> <span class='hs-varid'>rest_no_eq</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-str'>"malformed integer argument in "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>dash_arg</span><span class='hs-layout'>)</span>
<a name="line-116"></a>
<a name="line-117"></a> <span class='hs-conid'>OptPrefix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>rest_no_eq</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-118"></a> <span class='hs-conid'>AnySuffix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>dash_arg</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-119"></a> <span class='hs-conid'>AnySuffixPred</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>dash_arg</span><span class='hs-layout'>,</span> <span class='hs-varid'>args</span><span class='hs-layout'>)</span>
<a name="line-120"></a>
<a name="line-121"></a>
<a name="line-122"></a><a name="findArg"></a><span class='hs-definition'>findArg</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Flag</span> <span class='hs-varid'>m</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></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'>OptKind</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>Deprecated</span><span class='hs-layout'>)</span>
<a name="line-123"></a><span class='hs-definition'>findArg</span> <span class='hs-varid'>spec</span> <span class='hs-varid'>arg</span>
<a name="line-124"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>removeSpaces</span> <span class='hs-varid'>rest</span><span class='hs-layout'>,</span> <span class='hs-varid'>optKind</span><span class='hs-layout'>,</span> <span class='hs-varid'>flagDeprecated</span> <span class='hs-varid'>flag</span><span class='hs-layout'>)</span>
<a name="line-125"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>flag</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>spec</span><span class='hs-layout'>,</span>
<a name="line-126"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>optKind</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flagOptKind</span> <span class='hs-varid'>flag</span><span class='hs-layout'>,</span>
<a name="line-127"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>stripPrefix</span> <span class='hs-layout'>(</span><span class='hs-varid'>flagName</span> <span class='hs-varid'>flag</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-128"></a> <span class='hs-varid'>arg_ok</span> <span class='hs-varid'>optKind</span> <span class='hs-varid'>rest</span> <span class='hs-varid'>arg</span> <span class='hs-keyglyph'>]</span>
<a name="line-129"></a> <span class='hs-keyword'>of</span>
<a name="line-130"></a> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-131"></a> <span class='hs-layout'>(</span><span class='hs-varid'>one</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-varid'>one</span>
<a name="line-132"></a>
<a name="line-133"></a><a name="arg_ok"></a><span class='hs-definition'>arg_ok</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OptKind</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-134"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>NoArg</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</span> <span class='hs-varid'>rest</span>
<a name="line-135"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>HasArg</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-136"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>SepArg</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</span> <span class='hs-varid'>rest</span>
<a name="line-137"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>Prefix</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest</span>
<a name="line-138"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>PrefixPred</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>notNull</span> <span class='hs-varid'>rest</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropEq</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span>
<a name="line-139"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>OptIntSuffix</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-140"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>IntSuffix</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-141"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>OptPrefix</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-142"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>PassFlag</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</span> <span class='hs-varid'>rest</span>
<a name="line-143"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>AnySuffix</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-144"></a><span class='hs-definition'>arg_ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>AnySuffixPred</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>arg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-varid'>arg</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="parseInt"></a><span class='hs-definition'>parseInt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span>
<a name="line-147"></a><span class='hs-comment'>-- Looks for "433" or "=342", with no trailing gubbins</span>
<a name="line-148"></a><span class='hs-comment'>-- n or =n => Just n</span>
<a name="line-149"></a><span class='hs-comment'>-- gibberish => Nothing</span>
<a name="line-150"></a><span class='hs-definition'>parseInt</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>reads</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>of</span>
<a name="line-151"></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-str'>""</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-conid'>Just</span> <span class='hs-varid'>n</span>
<a name="line-152"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-153"></a>
<a name="line-154"></a><a name="dropEq"></a><span class='hs-definition'>dropEq</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-155"></a><span class='hs-comment'>-- Discards a leading equals sign</span>
<a name="line-156"></a><span class='hs-definition'>dropEq</span> <span class='hs-layout'>(</span><span class='hs-chr'>'='</span> <span class='hs-conop'>:</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span>
<a name="line-157"></a><span class='hs-definition'>dropEq</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span>
<a name="line-158"></a>
<a name="line-159"></a><a name="unknownFlagErr"></a><span class='hs-definition'>unknownFlagErr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-varid'>a</span>
<a name="line-160"></a><span class='hs-definition'>unknownFlagErr</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-str'>"unrecognised flag: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-161"></a>
<a name="line-162"></a><a name="missingArgErr"></a><span class='hs-definition'>missingArgErr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-varid'>a</span>
<a name="line-163"></a><span class='hs-definition'>missingArgErr</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-str'>"missing argument for flag: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-164"></a>
<a name="line-165"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-166"></a><span class='hs-comment'>-- A state monad for use in the command-line parser</span>
<a name="line-167"></a>
<a name="line-168"></a><a name="CmdLineP"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varid'>s</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-layout'>{</span> <span class='hs-varid'>runCmdLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span>
<a name="line-169"></a>
<a name="line-170"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-conid'>CmdLineP</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-171"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-172"></a> <span class='hs-varid'>m</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>let</span>
<a name="line-173"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runCmdLine</span> <span class='hs-varid'>m</span> <span class='hs-varid'>s</span>
<a name="line-174"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>runCmdLine</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-varid'>s'</span>
<a name="line-175"></a>
<a name="line-176"></a><a name="getCmdLineState"></a><span class='hs-definition'>getCmdLineState</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varid'>s</span> <span class='hs-varid'>s</span>
<a name="line-177"></a><span class='hs-definition'>getCmdLineState</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span><span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-178"></a><a name="putCmdLineState"></a><span class='hs-definition'>putCmdLineState</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varid'>s</span> <span class='hs-conid'>()</span>
<a name="line-179"></a><span class='hs-definition'>putCmdLineState</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CmdLineP</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>()</span><span class='hs-layout'>,</span><span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-180"></a>
<a name="line-181"></a><span class='hs-comment'>-- ---------------------------------------------------------------------</span>
<a name="line-182"></a><span class='hs-comment'>-- Utils</span>
<a name="line-183"></a>
<a name="line-184"></a><a name="errorsToGhcException"></a><span class='hs-definition'>errorsToGhcException</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Located</span> <span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GhcException</span>
<a name="line-185"></a><span class='hs-definition'>errorsToGhcException</span> <span class='hs-varid'>errs</span> <span class='hs-keyglyph'>=</span>
<a name="line-186"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>errors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>vcat</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>ppr</span> <span class='hs-varid'>l</span> <span class='hs-varop'><></span> <span class='hs-varid'>text</span> <span class='hs-str'>": "</span> <span class='hs-varop'><></span> <span class='hs-varid'>text</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>L</span> <span class='hs-varid'>l</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>errs</span> <span class='hs-keyglyph'>]</span>
<a name="line-187"></a> <span class='hs-keyword'>in</span> <span class='hs-conid'>UsageError</span> <span class='hs-layout'>(</span><span class='hs-varid'>showSDoc</span> <span class='hs-varid'>errors</span><span class='hs-layout'>)</span>
<a name="line-188"></a>
</pre></body>
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