<?xml version="1.0" encoding="UTF-8"?>
<!--
This file is part of GtkSourceView
Authors: Jesse van den Kieboom <jessevdk@gnome.org>
Copyright (C) 2010 Jesse van den Kieboom <jessevdk@gnome.org>
GtkSourceView is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
GtkSourceView is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>.
-->
<language id="cg" _name="CG Shader Language" version="2.0" _section="Source">
<metadata>
<property name="globs">*.cg</property>
<property name="line-comment-start">//</property>
<property name="block-comment-start">/*</property>
<property name="block-comment-end">*/</property>
</metadata>
<styles>
<style id="comment" name="Comment" map-to="def:comment"/>
<style id="error" name="Error" map-to="def:error"/>
<style id="preprocessor" name="Preprocessor" map-to="def:preprocessor"/>
<style id="bindings" name="Bindings" map-to="def:special-constant"/>
<style id="included-file" name="Included File" map-to="def:string"/>
<style id="keyword" name="Keyword" map-to="def:keyword"/>
<style id="type" name="Data Type" map-to="def:type"/>
<style id="storage-class" name="Storage Class" map-to="def:builtin"/>
<style id="escaped-character" name="Escaped Character" map-to="def:special-char"/>
<style id="floating-point" name="Floating point number" map-to="def:floating-point"/>
<style id="decimal" name="Decimal number" map-to="def:decimal"/>
<style id="octal" name="Octal number" map-to="def:base-n-integer"/>
<style id="hexadecimal" name="Hexadecimal number" map-to="def:base-n-integer"/>
<style id="boolean" name="Boolean value" map-to="def:boolean"/>
<style id="swizzle" name="Swizzle operator" map-to="def:operator"/>
<style id="function" name="Function" map-to="def:function"/>
<style id="builtin" name="Builtin" map-to="def:preprocessor"/>
</styles>
<definitions>
<!-- http://en.wikipedia.org/wiki/C_syntax#Strings -->
<define-regex id="escaped-character" extended="true">
\\( # leading backslash
[\\\"\'nrtfav\?e] | # escaped character
[0-7]{1,3} | # one, two, or three octal digits
x[0-9A-Fa-f]{0,2} # 'x' followed by zero, one, or two hex digits
)
</define-regex>
<context id="cg" class="no-spell-check">
<include>
<!-- Comments -->
<context id="comment" style-ref="comment" end-at-line-end="true" class="comment" class-disabled="no-spell-check">
<start>//</start>
<include>
<context ref="def:in-line-comment"/>
</include>
</context>
<context id="comment-multiline" style-ref="comment" class="comment" class-disabled="no-spell-check">
<start>/\*</start>
<end>\*/</end>
<include>
<context ref="def:in-comment"/>
</include>
</context>
<context id="close-comment-outside-comment" style-ref="error">
<match>\*/(?!\*)</match>
</context>
<!-- Preprocessor -->
<define-regex id="preproc-start">^\s*#\s*</define-regex>
<context id="include" style-ref="preprocessor">
<match extended="true">
\%{preproc-start}
(include|import)\s*
(".*?"|<.*>)
</match>
<include>
<context id="included-file" sub-pattern="2" style-ref="included-file"/>
</include>
</context>
<!-- http://www.lysator.liu.se/c/ANSI-C-grammar-l.html -->
<context id="float" style-ref="floating-point">
<match extended="true">
(?<![\w\.])
((\.[0-9]+ | [0-9]+\.[0-9]*) ([Ee][+-]?[0-9]*)? |
([0-9]+[Ee][+-]?[0-9]*))
[fFlL]?
(?![\w\.])
</match>
</context>
<context id="hexadecimal" style-ref="hexadecimal">
<match extended="true">
(?<![\w\.])
0[xX][a-fA-F0-9]+[uUlL]*
(?![\w\.])
</match>
</context>
<context id="octal" style-ref="octal">
<match extended="true">
(?<![\w\.])
0[0-7]+[uUlL]*
(?![\w\.])
</match>
</context>
<context id="decimal" style-ref="decimal">
<match extended="true">
(?<![\w\.])
[0-9]+[uUlL]*
(?![\w\.])
</match>
</context>
<!-- Keywords -->
<context id="keywords" style-ref="keyword">
<keyword>break</keyword>
<keyword>case</keyword>
<keyword>continue</keyword>
<keyword>default</keyword>
<keyword>else</keyword>
<keyword>for</keyword>
<keyword>if</keyword>
<keyword>return</keyword>
<keyword>struct</keyword>
<keyword>switch</keyword>
<keyword>while</keyword>
</context>
<context id="types" style-ref="type">
<keyword>bool</keyword>
<keyword>float</keyword>
<keyword>float2</keyword>
<keyword>float3</keyword>
<keyword>float4</keyword>
<keyword>float2x2</keyword>
<keyword>float3x3</keyword>
<keyword>float4x4</keyword>
<keyword>int</keyword>
<keyword>half</keyword>
<keyword>fixed</keyword>
<keyword>void</keyword>
<keyword>sampler1D</keyword>
<keyword>sampler2D</keyword>
<keyword>sampler3D</keyword>
<keyword>samplerRECT</keyword>
<keyword>samplerCUBE</keyword>
</context>
<context id="storage-class" style-ref="storage-class">
<keyword>uniform</keyword>
<keyword>out</keyword>
<keyword>inout</keyword>
<keyword>in</keyword>
<keyword>varying</keyword>
</context>
<context id="bindings" style-ref="bindings">
<keyword>POSITION</keyword>
<keyword>NORMAL</keyword>
</context>
<context id="color-bindings" style-ref="bindings">
<match extended="true">COLOR[0-3]?</match>
</context>
<context id="texunit-bindings" style-ref="bindings">
<match extended="true">TEXUNIT([0-9]|1[0-5])?</match>
</context>
<context id="texcoord-bindings" style-ref="bindings">
<match extended="true">TEXCOORD[0-7]?</match>
</context>
<context id="swizzle">
<match extended="true">\.([xyzw]+|[rgba]+)</match>
<include>
<context id="swizzle-operator" sub-pattern="1" style-ref="swizzle"/>
</include>
</context>
<!-- C99 booleans -->
<context id="boolean" style-ref="boolean">
<keyword>true</keyword>
<keyword>false</keyword>
</context>
<context id="builtin">
<match extended="true">
(mul|lit|lerp|saturate|abs|cos|acos|sin|asin|tan|atan|all|any|ceil|clamp|
cosh|cross|degress|determinant|dot|exp|exp2|floor|fmod|frac|frexp|isfinite|
isinf|isnan|ldexp|log|log2|log10|max|min|modf|noise|pow|radians|round|
rsqrt|sign|sincos|sinh|smoothstep|step|sqrt|tanh|transpose|distance|
faceforward|length|normalize|reflect|refract|tex1D|tex2D|tex3D|
tex1Dproj|tex2Dproj|tex3Dproj|texRECT|texRECTproj|texCUBE|texCUBEproj|
ddx|ddy|debug)\s*\(
</match>
<include>
<context id="builtin-name" sub-pattern="1" style-ref="builtin"/>
</include>
</context>
<context id="function">
<match extended="true">
([a-zA-Z_][a-zA-Z_0-9]*)\s*\(
</match>
<include>
<context id="function-name" sub-pattern="1" style-ref="function"/>
</include>
</context>
</include>
</context>
</definitions>
</language>