mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-01 04:00:32 +00:00
56 lines
2.1 KiB
Plaintext
56 lines
2.1 KiB
Plaintext
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Program <- Version? (LineMarker / GoogleIncludeExtensionEnable / UniformBlock / Declaration / ConstArray / Stage / Indent / IgnoredKeyword / Line)*
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~LineMarker <- '#line' (!EndOfLine .)* EndOfLine
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~GoogleIncludeExtensionEnable <- '#extension GL_GOOGLE_include_directive' (!EndOfLine .)* EndOfLine
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Line <- <(!EndOfLine !EndOfFile .)*> (EndOfLine / EndOfFile)
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~IgnoredKeyword <- !'const int' ('inline' / 'static ' / 'const ')
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Version <- '#'_'version' Space+ <Int> <(!EndOfLine .)*> EndOfLine
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Stage <- '#'_'pragma' Space+ 'stage' Space? <(!EndOfLine .)*> EndOfLine
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#.*Include <- '#'_'include' _ '"' <(!'"' .)*> '"' _ EndOfLine
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Declaration <- Layout? _ Qualifier Space _ Type Space _ Name _ ArraySize? _ EndOfStatement
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ConstArray <- Type Space _ Name _ ArraySize? _ '=' _ Array _ EndOfStatement
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UniformBlock <- Layout? _ 'uniform' _ StructName? _ '{' Member* '}' _ Name? _ EndOfStatement
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Member <- (_ Type Space _ Name _ ArraySize? _ EndOfStatement? _ Comment?)
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~Comment <- ('//' Line)
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Value <- (Float / Int / (!EndOfStatement .)*)
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Array <- ('{' ( _ ArrayItem+ _ ',')* (_ ArrayItem+ _ )? '}')
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ArrayItem <- <(!'}'!',' (groupedItem/.))+>
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groupedItem <- '(' (!')' (groupedItem/.))+ ')'
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Qualifier <- 'in' / 'out' / 'uniform'
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Type <- <'uint' / 'int' / 'ivec2' / 'ivec3' / 'ivec4' /
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'float' / 'vec2' / 'vec3' / 'vec4' /
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'bool' / 'bvec2' / 'bvec3' / 'bvec4' /
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'mat2x2' / 'mat2' /
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'mat3x2' / 'mat3x3' / 'mat3' /
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'mat4x2' / 'mat4x3' / 'mat4x4' / 'mat4' /
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'void' / 'sampler2D' / Name>
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StructName <- <Name>
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ArraySize <- '[' _ <Int> _ ']'
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Name <- ([a-z]/[A-Z]/'_'/[0-9])+
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Layout <- 'layout' _ '(' ( _ (Location / Binding / Set / PushConstant / Std) _ ','?)+ ')'
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Location <- 'location' _ '=' _ <Int>
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Binding <- 'binding' _ '=' _ <Int>
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Set <- 'set' _ '=' _ <Int>
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PushConstant <- 'push_constant'
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Std <- 'std' <Int>
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#.*Block <- '{' (Directive/ Statement / Block _)* '}'
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Float <- $< '-'? [0-9]+ '.' ([0-9]+ ('e-'[0-9]+)? )? 'f'? >
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Int <- < '-'? [0-9]+ >
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~EndOfStatement <- ';'
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~EndOfLine <- '\r\n' / '\n' / '\r'
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EndOfFile <- !.
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End <- EndOfLine / EndOfFile
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~_ <- [ \t\r\n]*
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Indent <- [ \t]
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~Space <- [ \t]
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