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newpolaris/gist:02f1a164ce9e78f736b5e7a9a11bac5b

Created August 10, 2021 14:59
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  1. newpolaris created this gist Aug 10, 2021.
    91 changes: 91 additions & 0 deletions gistfile1.txt
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,91 @@
    grammar Material;

    @lexer::members {
    boolean ignoreNewLine = true;
    }

    material_list :
    material
    | material_list material
    ;

    material :
    MATERIAL material_name material_parent? LBRACE material_body RBRACE
    ;

    material_parent :
    COLON IDENTIFIER
    ;

    material_name :
    IDENTIFIER
    ;

    material_body :
    material_child
    | material_body material_child
    ;

    material_child :
    define_statement
    | technique_statement
    | sampler_define
    | uniform_define
    ;

    define_statement :
    DEFINES ASSIGNMENT definements SEMICOLON?
    ;

    definements :
    IDENTIFIER
    | definements SEMICOLON IDENTIFIER
    ;

    technique_statement :
    TECHNIQUE
    LBRACE
    RBRACE
    ;

    sampler_define :
    SAMPLER IDENTIFIER
    LBRACE
    RBRACE
    ;

    uniform_define :
    IDENTIFIER ASSIGNMENT uniform_value
    ;

    uniform_value :
    ;

    MATERIAL : 'material';
    DEFINES : 'defines';
    TECHNIQUE : 'technique';
    SAMPLER : 'sampler';

    ASSIGNMENT: '=' ;
    LPAREN: '(' ;
    RPAREN: ')' ;
    LBRACE: '{' ;
    RBRACE: '}' ;
    SEMICOLON: ';' ;
    LBRACKET: '[' ;
    RBRACKET: ']' ;
    COMMA: ',' ;
    COLON: ':' ;

    IDENTIFIER :
    ('a'..'z' | 'A'..'Z' | '_') (DIGIT | 'a'..'z' | 'A'..'Z' | '_')*
    ;

    fragment DECIMAL_DIGITS: '0' | ('1'..'9' DIGIT*);
    fragment OCTAL_DIGITS: '0' '0'..'7'+;
    fragment HEX_DIGITS: '0x' (DIGIT | 'a'..'f' | 'A'..'F')+;
    fragment DIGIT : '0'..'9';

    WS: [\t\r\n\u000C ]+ -> skip;
    EOL: '\n' -> skip;
    COMMENT: ('//' ~('\n'|'\r')* '\r'? '\n' | '/*' (.)*? '*/') -> skip ;