15 lines
571 B
Plaintext
15 lines
571 B
Plaintext
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// TODO: comment
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ws:alias = [ \b\f\n\r\t\v];
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comment:alias = ";" [^\n]*;
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wsc:alias = ws | comment;
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number = "-"? ("0" | [1-9][0-9]*) ("." [0-9]+)? ([eE] [+\-]? [0-9]+)?;
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string = "\"" ([^\\"] | "\\" .)* "\"";
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symbol = ([^\\ \n\t\b\f\r\v\"()\[\]#] | "\\" .)+;
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list-form:alias = "(" wsc* (expression wsc*)* ")"
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| "[" wsc* (expression wsc*)* "]";
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list = list-form;
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vector = "#" list-form;
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expression:alias = number | string | symbol | list;
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scheme = wsc* (expression wsc*)*;
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