"" " for the Fantom language.for details."" " from string import Templatefrom pygments.lexer import RegexLexer, include, bygroups, using, \from pygments.token import Text, Comment, Operator, Keyword, Name, String, \'FantomLexer' ]class FantomLexer(RegexLexer):"" " For Fantom source code."" " 'Fantom' 'fan' ]'*.fan' ]'application/x-fantom' ]'https://www.fantom.org ' '1.5' # often used regexes def s(str):return Template(str).substitute('[\"\w\.]+' ,'\n|;' ,'[a-zA-Z_]\w*' ,# all chars which can be part of type definition. Starts with # either letter, or [ (maps), or | (funcs) '(?:\[|[a-zA-Z_]|\|)[:\w\[\]|\->?]*?' ,'comments' : ['(?s)/\*.*?\*/' , Comment.Multiline), # Multiline '//.*?$' , Comment.Single), # Single line # TODO: highlight references in fandocs '\*\*.*?$' , Comment.Special), # Fandoc '#.*$', Comment.Single) # Shell-style 'literals' : ['\b-?[\d_]+(ns|ms|sec|min|hr|day)' , Number), # Duration '\b-?[\d_]*\.[\d_]+(ns|ms|sec|min|hr|day)' , Number), # Duration with dot '\b-?(\d+)?\.\d+(f|F|d|D)?' , Number.Float), # Float/Decimal '\b-?0x[0-9a-fA-F_]+' , Number.Hex), # Hex '\b-?[\d_]+' , Number.Integer), # Int "'\\.'|'[^\\]'|'\\u[0-9a-f]{4}'" , String.Char), # Char '"' , Punctuation, 'insideStr' ), # Opening quote '`' , Punctuation, 'insideUri' ), # Opening accent '\b(true|false|null)\b' , Keyword.Constant), # Bool & null '(?:(\w+)(::))?(\w+)(<\|)(.*?)(\|>)' , # DSL Class ,'(?:(\w+)(::))?(\w+)?(#)(\w+)?', # Type/slot literal Class ,'\[,\]' , Literal), # Empty list '($type)(\[,\])' ), # Typed empty list 'inType' ), Literal)),'\[:\]' , Literal), # Empty Map '($type)(\[:\])' ),'inType' ), Literal)),'insideStr' : ['\\\\' , String.Escape), # Escaped backslash '\\"' , String.Escape), # Escaped " '\\`' , String.Escape), # Escaped ` '\$\w+' , String.Interpol), # Subst var '\$\{.*?\}' , String.Interpol), # Subst expr '"' , Punctuation, '#pop'), # Closing quot '.' , String) # String content 'insideUri' : [ # TODO: remove copy/paste str/uri '\\\\' , String.Escape), # Escaped backslash '\\"' , String.Escape), # Escaped " '\\`' , String.Escape), # Escaped ` '\$\w+' , String.Interpol), # Subst var '\$\{.*?\}' , String.Interpol), # Subst expr '`' , Punctuation, '#pop'), # Closing tick '.' , String.Backtick) # URI content 'protectionKeywords' : ['\b(public|protected|private|internal)\b' , Keyword),'typeKeywords' : ['\b(abstract|final|const|native|facet|enum)\b' , Keyword),'methodKeywords' : ['\b(abstract|native|once|override|static|virtual|final)\b' ,'fieldKeywords' : ['\b(abstract|const|final|native|override|static|virtual|' 'readonly)\b' , Keyword)'otherKeywords' : ['try' , 'catch' , 'throw' , 'finally' , 'for' , 'if' , 'else' , 'while' ,'as' , 'is' , 'isnot' , 'switch' , 'case' , 'default' , 'continue' ,'break' , 'do' , 'return' , 'get' , 'set' ), prefix=r'\b' , suffix=r'\b' ),'\b(it|this|super)\b' , Name.Builtin.Pseudo),'operators' : ['\+\+|\-\-|\+|\-|\*|/|\|\||&&|<=>|<=|<|>=|>|=|!|\[|\]' , Operator)'inType' : ['[\[\]|\->:?]' , Punctuation),'$id' ), Name.Class ),'#pop'), 'root' : ['comments' ),'protectionKeywords' ),'typeKeywords' ),'methodKeywords' ),'fieldKeywords' ),'literals' ),'otherKeywords' ),'operators' ),'using\b' , Keyword.Namespace, 'using' ), # Using stmt '@\w+' , Name.Decorator, 'facet' ), # Symbol '(class|mixin)(\s+)(\w+)' , bygroups(Keyword, Whitespace, Name.Class ),'inheritance' ), # Inheritance list # Type var := val '($type)([ \t]+)($id)(\s*)(:=)' ),'inType' ), Whitespace,# var := val '($id)(\s*)(:=)' ),# .someId( or ->someId( ### '(\.|(?:\->))($id)(\s*)(\()' ),'insideParen' ),# .someId or ->someId '(\.|(?:\->))($id)' ),# new makeXXX ( '(new)(\s+)(make\w*)(\s*)(\()' ,'insideMethodDeclArgs' ),# Type name ( '($type)([ \t]+)' # Return type and whitespace '($id)(\s*)(\()' ), # method name + open brace 'inType' ), Whitespace,'insideMethodDeclArgs' ),# ArgType argName, '($type)(\s+)($id)(\s*)(,)' ),'inType' ), Whitespace, Name.Variable,# ArgType argName) # Covered in 'insideParen' state # ArgType argName -> ArgType| '($type)(\s+)($id)(\s*)(\->)(\s*)($type)(\|)' ),'inType' ), Whitespace, Name.Variable,'inType' ),# ArgType argName| '($type)(\s+)($id)(\s*)(\|)' ),'inType' ), Whitespace, Name.Variable,# Type var '($type)([ \t]+)($id)' ),'inType' ), Whitespace,'\(' , Punctuation, 'insideParen' ),'\{' , Punctuation, 'insideBrace' ),'\s+' , Whitespace),'.' , Text)'insideParen' : ['\)' , Punctuation, '#pop'), 'root' ),'insideMethodDeclArgs' : ['\)' , Punctuation, '#pop'), '($type)(\s+)($id)(\s*)(\))' ),'inType' ), Whitespace, Name.Variable,'#pop'), 'root' ),'insideBrace' : ['\}' , Punctuation, '#pop'), 'root' ),'inheritance' : ['\s+' , Whitespace), # Whitespace ':|,' , Punctuation),'(?:(\w+)(::))?(\w+)' ,Class )),'\{' , Punctuation, '#pop') 'using' : ['[ \t]+' , Whitespace), # consume whitespaces '(\[)(\w+)(\])' ,# ffi '(\")?([\w.]+)(\")?' ,# podname '::' , Punctuation, 'usingClass' ),'#pop') 'usingClass' : ['[ \t]+' , Whitespace), # consume whitespaces '(as)(\s+)(\w+)' ,Class ), '#pop:2'), '[\w$]+' , Name.Class ),'#pop:2') # jump out to root state 'facet' : ['\s+' , Whitespace),'\{' , Punctuation, 'facetFields' ),'#pop') 'facetFields' : ['comments' ),'literals' ),'operators' ),'\s+' , Whitespace),'(\s*)(\w+)(\s*)(=)' , bygroups(Whitespace, Name, Whitespace, Operator)),'\}' , Punctuation, '#pop'), '\s+' , Whitespace),'.' , Text)quality 71%
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