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Prism.languages.scheme = {
'comment' : /;.*/,
'string' : /"(?:[^"\\\r\n]|\\.)*?"|'[^('\s]*/,
'keyword' : {
pattern : /(\()(?:define(?:-syntax|-library|-values)?|(?:case-)?lambda|let(?:\*|rec)?(?:-values)?|else|if|cond|begin|delay(?:-force)?|parameterize|guard|set!|(?:quasi-)?quote|syntax-rules)/,
lookbehind : true
},
'builtin' : {
pattern : /(\()(?:(?:cons|car|cdr|list|call-with-current-continuation|call\/cc|append|abs|apply|eval)\b|null\?|pair\?|boolean\?|eof-object\?|char\?|procedure\?|number\?|port\?|string\?|vector\?|symbol\?|bytevector\?)/,
lookbehind : true
},
'number' : {
pattern: /(\s|\))[-+]?[0-9]*\.?[0-9]+(?:\s*[-+]\s*[0-9]*\.?[0-9]+i)?\b/,
lookbehind: true
},
'boolean' : /#[tf]/,
'operator': {
pattern: /(\()(?:[-+*%\/]|[<>]=?|=>?)/,
lookbehind: true
},
'function' : {
pattern : /(\()[^\s()]*(?=\s)/,
lookbehind : true
},
'punctuation' : /[()]/
};
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