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Extended Backus–Naur form ([EBNF][]) is a metalanguage used to specify language grammars. [EBNF]: https://en.wikipedia.org/wiki/Extended_Backus–Naur_form
62 lines
1.1 KiB
EBNF
62 lines
1.1 KiB
EBNF
(*
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Source: https://github.com/io7m/jsom0
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License: ISC
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*)
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vertex_p3n3_name =
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"vertex_p3n3" ;
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vertex_p3n3t2_name =
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"vertex_p3n3t2" ;
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vertex_type =
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vertex_p3n3_name | vertex_p3n3t2_name ;
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vertex_position =
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"position" , real , real , real , ";" ;
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vertex_normal =
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"normal" , real , real , real , ";" ;
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vertex_uv =
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"uv" , real , real , ";" ;
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vertex_p3n3 =
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vertex_p3n3_name , vertex_position , vertex_normal , "end" , ";" ;
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vertex_p3n3t2 =
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vertex_p3n3t2_name , vertex_position , vertex_normal , vertex_uv , "end" , ";" ;
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vertex =
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vertex_p3n3 | vertex_p3n3t2 ;
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vertex_array =
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"array" , positive , vertex_type , { vertex } , "end" , ";" ;
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vertices =
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"vertices" , ";" , vertex_array , "end" , ";" ;
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triangle =
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"triangle" , natural , natural , natural , ";" ;
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triangle_array =
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"array" , positive, "triangle" , { triangle } , "end" , ";" ;
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triangles =
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"triangles" , ";" , triangle_array , "end" , ";" ;
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name =
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"name" , string , ";" ;
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material_name =
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"material_name" , string , ";" ;
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object =
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"object" , ";" ,
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name ,
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material_name ,
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vertices ,
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triangles ,
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"end" , ";" ;
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