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-rw-r--r--lua/lexers/glsl.lua190
1 files changed, 81 insertions, 109 deletions
diff --git a/lua/lexers/glsl.lua b/lua/lexers/glsl.lua
index 6fdaf20..9997a13 100644
--- a/lua/lexers/glsl.lua
+++ b/lua/lexers/glsl.lua
@@ -1,132 +1,104 @@
--- Copyright 2006-2017 Mitchell mitchell.att.foicica.com. See LICENSE.
+-- Copyright 2006-2022 Mitchell. See LICENSE.
-- GLSL LPeg lexer.
-local l = require('lexer')
-local token, word_match = l.token, l.word_match
-local P, R, S = lpeg.P, lpeg.R, lpeg.S
-local table = _G.table
+local lexer = require('lexer')
+local token, word_match = lexer.token, lexer.word_match
+local P, S, R = lpeg.P, lpeg.S, lpeg.R
-local M = {_NAME = 'glsl'}
+local lex = lexer.new('glsl', {inherit = lexer.load('cpp')})
-- Whitespace.
-local ws = token(l.WHITESPACE, l.space^1)
+lex:modify_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
-- Keywords.
-local keyword = token(l.KEYWORD, word_match{
- 'attribute', 'const', 'in', 'inout', 'out', 'uniform', 'varying', 'invariant',
- 'centroid', 'flat', 'smooth', 'noperspective', 'layout', 'patch', 'sample',
- 'subroutine', 'lowp', 'mediump', 'highp', 'precision',
+lex:modify_rule('keyword', token(lexer.KEYWORD, word_match{
+ 'attribute', 'const', 'in', 'inout', 'out', 'uniform', 'varying', 'invariant', 'centroid', 'flat',
+ 'smooth', 'noperspective', 'layout', 'patch', 'sample', 'subroutine', 'lowp', 'mediump', 'highp',
+ 'precision',
-- Macros.
- '__VERSION__', '__LINE__', '__FILE__',
-})
-
--- Functions.
-local func = token(l.FUNCTION, word_match{
- 'radians', 'degrees', 'sin', 'cos', 'tan', 'asin', 'acos', 'atan', 'sinh',
- 'cosh', 'tanh', 'asinh', 'acosh', 'atanh', 'pow', 'exp', 'log', 'exp2',
- 'log2', 'sqrt', 'inversesqrt', 'abs', 'sign', 'floor', 'trunc', 'round',
- 'roundEven', 'ceil', 'fract', 'mod', 'modf', 'min', 'max', 'clamp', 'mix',
- 'step', 'smoothstep', 'isnan', 'isinf', 'floatBitsToInt', 'floatBitsToUint',
- 'intBitsToFloat', 'uintBitsToFloat', 'fma', 'frexp', 'ldexp', 'packUnorm2x16',
- 'packUnorm4x8', 'packSnorm4x8', 'unpackUnorm2x16', 'unpackUnorm4x8',
- 'unpackSnorm4x8', 'packDouble2x32', 'unpackDouble2x32', 'length', 'distance',
- 'dot', 'cross', 'normalize', 'ftransform', 'faceforward', 'reflect',
- 'refract', 'matrixCompMult', 'outerProduct', 'transpose', 'determinant',
- 'inverse', 'lessThan', 'lessThanEqual', 'greaterThan', 'greaterThanEqual',
- 'equal', 'notEqual', 'any', 'all', 'not', 'uaddCarry', 'usubBorrow',
- 'umulExtended', 'imulExtended', 'bitfieldExtract', 'bitfildInsert',
- 'bitfieldReverse', 'bitCount', 'findLSB', 'findMSB', 'textureSize',
- 'textureQueryLOD', 'texture', 'textureProj', 'textureLod', 'textureOffset',
- 'texelFetch', 'texelFetchOffset', 'textureProjOffset', 'textureLodOffset',
- 'textureProjLod', 'textureProjLodOffset', 'textureGrad', 'textureGradOffset',
- 'textureProjGrad', 'textureProjGradOffset', 'textureGather',
- 'textureGatherOffset', 'texture1D', 'texture2D', 'texture3D', 'texture1DProj',
- 'texture2DProj', 'texture3DProj', 'texture1DLod', 'texture2DLod',
- 'texture3DLod', 'texture1DProjLod', 'texture2DProjLod', 'texture3DProjLod',
- 'textureCube', 'textureCubeLod', 'shadow1D', 'shadow2D', 'shadow1DProj',
- 'shadow2DProj', 'shadow1DLod', 'shadow2DLod', 'shadow1DProjLod',
- 'shadow2DProjLod', 'dFdx', 'dFdy', 'fwidth', 'interpolateAtCentroid',
- 'interpolateAtSample', 'interpolateAtOffset', 'noise1', 'noise2', 'noise3',
- 'noise4', 'EmitStreamVertex', 'EndStreamPrimitive', 'EmitVertex',
- 'EndPrimitive', 'barrier'
-})
+ '__VERSION__', '__LINE__', '__FILE__'
+}) + lex:get_rule('keyword'))
-- Types.
-local type = token(l.TYPE,
- S('bdiu')^-1 * 'vec' * R('24') +
- P('d')^-1 * 'mat' * R('24') * ('x' * R('24')^-1) +
- S('iu')^-1 * 'sampler' * R('13') * 'D' +
- 'sampler' * R('12') * 'D' * P('Array')^-1 * 'Shadow' +
- S('iu')^-1 * 'sampler' * (R('12') * 'DArray' + word_match{
- 'Cube', '2DRect', 'Buffer', '2DMS', '2DMSArray',
- '2DMSCubeArray'
- }) +
- word_match{
- 'samplerCubeShadow', 'sampler2DRectShadow',
- 'samplerCubeArrayShadow'
- })
+-- LuaFormatter off
+lex:modify_rule('type', token(lexer.TYPE,
+ S('bdiu')^-1 * 'vec' * R('24') +
+ P('d')^-1 * 'mat' * R('24') * ('x' * R('24')^-1) +
+ S('iu')^-1 * 'sampler' * R('13') * 'D' +
+ 'sampler' * R('12') * 'D' * P('Array')^-1 * 'Shadow' +
+ (S('iu')^-1 * 'sampler' * (R('12') * 'DArray' +
+ word_match('Cube 2DRect Buffer 2DMS 2DMSArray 2DMSCubeArray'))) +
+ word_match('samplerCubeShadow sampler2DRectShadow samplerCubeArrayShadow')) +
+-- LuaFormatter on
+ lex:get_rule('type') +
+
+-- Functions.
+token(lexer.FUNCTION, word_match{
+ 'radians', 'degrees', 'sin', 'cos', 'tan', 'asin', 'acos', 'atan', 'sinh', 'cosh', 'tanh',
+ 'asinh', 'acosh', 'atanh', 'pow', 'exp', 'log', 'exp2', 'log2', 'sqrt', 'inversesqrt', 'abs',
+ 'sign', 'floor', 'trunc', 'round', 'roundEven', 'ceil', 'fract', 'mod', 'modf', 'min', 'max',
+ 'clamp', 'mix', 'step', 'smoothstep', 'isnan', 'isinf', 'floatBitsToInt', 'floatBitsToUint',
+ 'intBitsToFloat', 'uintBitsToFloat', 'fma', 'frexp', 'ldexp', 'packUnorm2x16', 'packUnorm4x8',
+ 'packSnorm4x8', 'unpackUnorm2x16', 'unpackUnorm4x8', 'unpackSnorm4x8', 'packDouble2x32',
+ 'unpackDouble2x32', 'length', 'distance', 'dot', 'cross', 'normalize', 'ftransform',
+ 'faceforward', 'reflect', 'refract', 'matrixCompMult', 'outerProduct', 'transpose', 'determinant',
+ 'inverse', 'lessThan', 'lessThanEqual', 'greaterThan', 'greaterThanEqual', 'equal', 'notEqual',
+ 'any', 'all', 'not', 'uaddCarry', 'usubBorrow', 'umulExtended', 'imulExtended', 'bitfieldExtract',
+ 'bitfildInsert', 'bitfieldReverse', 'bitCount', 'findLSB', 'findMSB', 'textureSize',
+ 'textureQueryLOD', 'texture', 'textureProj', 'textureLod', 'textureOffset', 'texelFetch',
+ 'texelFetchOffset', 'textureProjOffset', 'textureLodOffset', 'textureProjLod',
+ 'textureProjLodOffset', 'textureGrad', 'textureGradOffset', 'textureProjGrad',
+ 'textureProjGradOffset', 'textureGather', 'textureGatherOffset', 'texture1D', 'texture2D',
+ 'texture3D', 'texture1DProj', 'texture2DProj', 'texture3DProj', 'texture1DLod', 'texture2DLod',
+ 'texture3DLod', 'texture1DProjLod', 'texture2DProjLod', 'texture3DProjLod', 'textureCube',
+ 'textureCubeLod', 'shadow1D', 'shadow2D', 'shadow1DProj', 'shadow2DProj', 'shadow1DLod',
+ 'shadow2DLod', 'shadow1DProjLod', 'shadow2DProjLod', 'dFdx', 'dFdy', 'fwidth',
+ 'interpolateAtCentroid', 'interpolateAtSample', 'interpolateAtOffset', 'noise1', 'noise2',
+ 'noise3', 'noise4', 'EmitStreamVertex', 'EndStreamPrimitive', 'EmitVertex', 'EndPrimitive',
+ 'barrier'
+}) +
-- Variables.
-local variable = token(l.VARIABLE, word_match{
- 'gl_VertexID', 'gl_InstanceID', 'gl_Position', 'gl_PointSize',
- 'gl_ClipDistance', 'gl_PrimitiveIDIn', 'gl_InvocationID', 'gl_PrimitiveID',
- 'gl_Layer', 'gl_PatchVerticesIn', 'gl_TessLevelOuter', 'gl_TessLevelInner',
- 'gl_TessCoord', 'gl_FragCoord', 'gl_FrontFacing', 'gl_PointCoord',
- 'gl_SampleID', 'gl_SamplePosition', 'gl_FragColor', 'gl_FragData',
- 'gl_FragDepth', 'gl_SampleMask', 'gl_ClipVertex', 'gl_FrontColor',
- 'gl_BackColor', 'gl_FrontSecondaryColor', 'gl_BackSecondaryColor',
- 'gl_TexCoord', 'gl_FogFragCoord', 'gl_Color', 'gl_SecondaryColor',
- 'gl_Normal', 'gl_Vertex', 'gl_MultiTexCoord0', 'gl_MultiTexCoord1',
- 'gl_MultiTexCoord2', 'gl_MultiTexCoord3', 'gl_MultiTexCoord4',
- 'gl_MultiTexCoord5', 'gl_MultiTexCoord6', 'gl_MultiTexCoord7', 'gl_FogCoord'
-})
+token(lexer.VARIABLE, word_match{
+ 'gl_VertexID', 'gl_InstanceID', 'gl_Position', 'gl_PointSize', 'gl_ClipDistance',
+ 'gl_PrimitiveIDIn', 'gl_InvocationID', 'gl_PrimitiveID', 'gl_Layer', 'gl_PatchVerticesIn',
+ 'gl_TessLevelOuter', 'gl_TessLevelInner', 'gl_TessCoord', 'gl_FragCoord', 'gl_FrontFacing',
+ 'gl_PointCoord', 'gl_SampleID', 'gl_SamplePosition', 'gl_FragColor', 'gl_FragData',
+ 'gl_FragDepth', 'gl_SampleMask', 'gl_ClipVertex', 'gl_FrontColor', 'gl_BackColor',
+ 'gl_FrontSecondaryColor', 'gl_BackSecondaryColor', 'gl_TexCoord', 'gl_FogFragCoord', 'gl_Color',
+ 'gl_SecondaryColor', 'gl_Normal', 'gl_Vertex', 'gl_MultiTexCoord0', 'gl_MultiTexCoord1',
+ 'gl_MultiTexCoord2', 'gl_MultiTexCoord3', 'gl_MultiTexCoord4', 'gl_MultiTexCoord5',
+ 'gl_MultiTexCoord6', 'gl_MultiTexCoord7', 'gl_FogCoord'
+}) +
-- Constants.
-local constant = token(l.CONSTANT, word_match{
+token(lexer.CONSTANT, word_match{
'gl_MaxVertexAttribs', 'gl_MaxVertexUniformComponents', 'gl_MaxVaryingFloats',
- 'gl_MaxVaryingComponents', 'gl_MaxVertexOutputComponents',
- 'gl_MaxGeometryInputComponents', 'gl_MaxGeometryOutputComponents',
- 'gl_MaxFragmentInputComponents', 'gl_MaxVertexTextureImageUnits',
- 'gl_MaxCombinedTextureImageUnits', 'gl_MaxTextureImageUnits',
+ 'gl_MaxVaryingComponents', 'gl_MaxVertexOutputComponents', 'gl_MaxGeometryInputComponents',
+ 'gl_MaxGeometryOutputComponents', 'gl_MaxFragmentInputComponents',
+ 'gl_MaxVertexTextureImageUnits', 'gl_MaxCombinedTextureImageUnits', 'gl_MaxTextureImageUnits',
'gl_MaxFragmentUniformComponents', 'gl_MaxDrawBuffers', 'gl_MaxClipDistances',
'gl_MaxGeometryTextureImageUnits', 'gl_MaxGeometryOutputVertices',
'gl_MaxGeometryTotalOutputComponents', 'gl_MaxGeometryUniformComponents',
'gl_MaxGeometryVaryingComponents', 'gl_MaxTessControlInputComponents',
'gl_MaxTessControlOutputComponents', 'gl_MaxTessControlTextureImageUnits',
- 'gl_MaxTessControlUniformComponents',
- 'gl_MaxTessControlTotalOutputComponents',
+ 'gl_MaxTessControlUniformComponents', 'gl_MaxTessControlTotalOutputComponents',
'gl_MaxTessEvaluationInputComponents', 'gl_MaxTessEvaluationOutputComponents',
- 'gl_MaxTessEvaluationTextureImageUnits',
- 'gl_MaxTessEvaluationUniformComponents', 'gl_MaxTessPatchComponents',
- 'gl_MaxPatchVertices', 'gl_MaxTessGenLevel', 'gl_MaxTextureUnits',
- 'gl_MaxTextureCoords', 'gl_MaxClipPlanes',
-
- 'gl_DepthRange', 'gl_ModelViewMatrix', 'gl_ProjectionMatrix',
- 'gl_ModelViewProjectionMatrix', 'gl_TextureMatrix', 'gl_NormalMatrix',
- 'gl_ModelViewMatrixInverse', 'gl_ProjectionMatrixInverse',
- 'gl_ModelViewProjectionMatrixInverse', 'gl_TextureMatrixInverse',
- 'gl_ModelViewMatrixTranspose', 'gl_ProjectionMatrixTranspose',
- 'gl_ModelViewProjectionMatrixTranspose', 'gl_TextureMatrixTranspose',
- 'gl_ModelViewMatrixInverseTranspose', 'gl_ProjectionMatrixInverseTranspose',
- 'gl_ModelViewProjectionMatrixInverseTranspose',
- 'gl_TextureMatrixInverseTranspose', 'gl_NormalScale', 'gl_ClipPlane',
- 'gl_Point', 'gl_FrontMaterial', 'gl_BackMaterial', 'gl_LightSource',
- 'gl_LightModel', 'gl_FrontLightModelProduct', 'gl_BackLightModelProduct',
- 'gl_FrontLightProduct', 'gl_BackLightProduct', 'gl_TextureEnvColor',
- 'gl_EyePlaneS', 'gl_EyePlaneT', 'gl_EyePlaneR', 'gl_EyePlaneQ',
- 'gl_ObjectPlaneS', 'gl_ObjectPlaneT', 'gl_ObjectPlaneR', 'gl_ObjectPlaneQ',
+ 'gl_MaxTessEvaluationTextureImageUnits', 'gl_MaxTessEvaluationUniformComponents',
+ 'gl_MaxTessPatchComponents', 'gl_MaxPatchVertices', 'gl_MaxTessGenLevel', 'gl_MaxTextureUnits',
+ 'gl_MaxTextureCoords', 'gl_MaxClipPlanes', --
+ 'gl_DepthRange', 'gl_ModelViewMatrix', 'gl_ProjectionMatrix', 'gl_ModelViewProjectionMatrix',
+ 'gl_TextureMatrix', 'gl_NormalMatrix', 'gl_ModelViewMatrixInverse', 'gl_ProjectionMatrixInverse',
+ 'gl_ModelViewProjectionMatrixInverse', 'gl_TextureMatrixInverse', 'gl_ModelViewMatrixTranspose',
+ 'gl_ProjectionMatrixTranspose', 'gl_ModelViewProjectionMatrixTranspose',
+ 'gl_TextureMatrixTranspose', 'gl_ModelViewMatrixInverseTranspose',
+ 'gl_ProjectionMatrixInverseTranspose', 'gl_ModelViewProjectionMatrixInverseTranspose',
+ 'gl_TextureMatrixInverseTranspose', 'gl_NormalScale', 'gl_ClipPlane', 'gl_Point',
+ 'gl_FrontMaterial', 'gl_BackMaterial', 'gl_LightSource', 'gl_LightModel',
+ 'gl_FrontLightModelProduct', 'gl_BackLightModelProduct', 'gl_FrontLightProduct',
+ 'gl_BackLightProduct', 'gl_TextureEnvColor', 'gl_EyePlaneS', 'gl_EyePlaneT', 'gl_EyePlaneR',
+ 'gl_EyePlaneQ', 'gl_ObjectPlaneS', 'gl_ObjectPlaneT', 'gl_ObjectPlaneR', 'gl_ObjectPlaneQ',
'gl_Fog'
-})
-
--- Extend cpp lexer to include GLSL elements.
-local cpp = l.load('cpp')
-local _rules = cpp._rules
-_rules[1] = {'whitespace', ws}
-table.insert(_rules, 2, {'glsl_keyword', keyword})
-table.insert(_rules, 3, {'glsl_function', func})
-table.insert(_rules, 4, {'glsl_type', type})
-table.insert(_rules, 5, {'glsl_variable', variable})
-M._rules = _rules
-M._foldsymbols = cpp._foldsymbols
+}))
-return M
+return lex
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