76 lines
4.1 KiB
Python
76 lines
4.1 KiB
Python
import color, mode2
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from lex2 import Grammar, PatternRule, RegionRule
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from point2 import Point
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from mode_python import StringGrammar
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class JavascriptGrammar(Grammar):
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rules = [
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PatternRule(name=r'comment', pattern=r'//.*$'),
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RegionRule(name=r'comment', start='/\*', grammar=Grammar(), end='\*/'),
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PatternRule(name=r'continuation', pattern=r'\\(?= *$)'),
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PatternRule(name=r'function', pattern=r"(?<=function )[a-zA-Z_][a-zA-Z0-9_]*"),
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PatternRule(name=r'class', pattern=r"(?<=class )[a-zA-Z_][a-zA-Z0-9_]*"),
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PatternRule(name=r'reserved1', pattern=r'(?:as|break|case|catch|class|const|continue|default|delete|do|else|export|extends|false|finally|for|function|if|import|in|instanceof|is|namespace|new|null|package|private|public|return|super|switch|this|throw|true|try|typeof|use|var|void|while|with)(?![a-zA-Z0-9_])'),
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PatternRule(name=r'reserved2', pattern=r'(?:abstract|debugger|enum|goto|implements|interface|native|protected|synchronized|throws|transient|volatile)(?![a-zA-Z0-9_])'),
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PatternRule(name=r'nonreserved', pattern=r'(?:get|include|set)(?![a-zA-Z0-9_])'),
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PatternRule(name=r"method", pattern=r"(?<=\.)[a-zA-Z_][a-zA-Z0-9_]*(?= *\()"),
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PatternRule(name=r'identifier', pattern=r"[a-zA-Z_][a-zA-Z0-9_]*"),
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PatternRule(name=r'integer', pattern=r"(?:0|[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?"),
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PatternRule(name=r'float', pattern=r"[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+"),
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# fucking javascript!
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# their lexer grammar requires one-token look-behind in order to know
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# whether a "/" starts a literal regex, or is part of a mathematical
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# expression/assignment. so for now we will require either a space or $
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# after / in order to *not* treat it as a regex. dammit!
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PatternRule(name=r'delimiter', pattern=r'%=|&&=|&=|\(|\)|\*=|\+=|,|-=|\.{3}|\.|/=(?= |$)|::|:|;|<<=|>>=|>>>=|\?|\[|\]|^=|^^=|\{|\}|\|=|\|\|='),
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PatternRule(name=r'operator', pattern=r'!==|!=|!|%|&&|&|\*|\+\+|\+|--|-|/(?= |$)|<<=|<<|<=|<|===|==|=|>>>=|>>>|>>=|>>|>=|>|\\'),
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RegionRule(name='regex', start="/", grammar=StringGrammar(), end="/"),
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RegionRule(name='string', start="'", grammar=StringGrammar(), end="'"),
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RegionRule(name='string', start='"', grammar=StringGrammar(), end='"'),
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]
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class Javascript(mode2.Fundamental):
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grammar = JavascriptGrammar()
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def __init__(self, w):
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mode2.Fundamental.__init__(self, w)
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self.add_bindings('close-paren', (')',))
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self.add_bindings('close-brace', ('}',))
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self.add_bindings('close-bracket', (']',))
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self.colors = {
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'comment': color.build('red', 'default'),
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'comment.start': color.build('red', 'default'),
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'comment.null': color.build('red', 'default'),
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'comment.end': color.build('red', 'default'),
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'continuation': color.build('red', 'default'),
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'function': color.build('blue', 'default'),
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'class': color.build('green', 'default'),
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'reserved1': color.build('cyan', 'default'),
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'reserved2': color.build('cyan', 'default'),
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'nonreserved': color.build('cyan', 'default'),
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'delimiter': color.build('default', 'default'),
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'operator': color.build('default', 'default'),
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'integer': color.build('default', 'default'),
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'float': color.build('default', 'default'),
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'string.start': color.build('green', 'default'),
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'string.null': color.build('green', 'default'),
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'string.octal': color.build('magenta', 'default'),
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'string.escaped': color.build('magenta', 'default'),
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'string.end': color.build('green', 'default'),
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'regex.start': color.build('cyan', 'default'),
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'regex.null': color.build('cyan', 'default'),
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'regex.octal': color.build('magenta', 'default'),
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'regex.escaped': color.build('magenta', 'default'),
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'regex.end': color.build('cyan', 'default'),
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}
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def name(self):
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return "Javascript"
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