117 lines
5.3 KiB
Python
117 lines
5.3 KiB
Python
import color, mode, tab
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from lex import Grammar, PatternRule, RegionRule, PatternGroupRule
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from point import Point
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class StringGrammar1(Grammar):
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rules = [
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PatternRule(r'octal', r'\\[0-7]{3}'),
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PatternRule(r'hex', r'\\x[0-9a-fA-F]{2}'),
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PatternRule(r'escaped', r'\\.'),
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PatternRule(r'data', r'[^\\\']+'),
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]
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class StringGrammar2(Grammar):
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rules = [
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PatternRule(r'octal', r'\\[0-7]{3}'),
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PatternRule(r'hex', r'\\x[0-9a-fA-F]{2}'),
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PatternRule(r'escaped', r'\\.'),
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PatternRule(r'data', r'[^\\\"]+'),
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]
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class RegexGrammar(Grammar):
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rules = [
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PatternRule(r'octal', r'\\[0-7]{3}'),
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PatternRule(r'hex', r'\\x[0-9a-fA-F]{2}'),
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PatternRule(r'escaped', r'\\.'),
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PatternRule(r'data', r'[^/\\]+'),
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]
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class JavascriptGrammar(Grammar):
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rules = [
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PatternRule(r'comment', r'//.*$'),
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RegionRule(r'comment', '/\*', Grammar, '\*/'),
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PatternRule(r'continuation', r'\\(?= *$)'),
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PatternGroupRule(r'func_def', 'js_reserved', r'function', r'spaces', r' +', r'js_function', r'[a-zA-Z_][a-zA-Z0-9_]*'),
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PatternGroupRule(r'class_def', 'js_reserved', r'class', r'spaces', r' +', r'js_class', r'[a-zA-Z_][a-zA-Z0-9_]*'),
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PatternGroupRule(r'class_new', r'js_reserved', r'new', r'spaces', r' +', r'js_class', r'[a-zA-Z_][a-zA-Z0-9_]*'),
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PatternRule(r'js_reserved', r'(?:abstract|as|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|false|finally|for|function|get|goto|if|import|implements|include|instanceof|interface|in|is|namespace|native|new|null|package|private|protected|public|return|set|super|switch|synchronized|this|throws|throw|transient|true|try|typeof|use|var|void|volatile|while|with)(?![a-zA-Z0-9_])'),
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PatternGroupRule(r'func_use', r"js_function", r"[a-zA-Z_][a-zA-Z0-9_]", r'spaces', ' +',
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r'delimiter', r"\("),
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PatternRule(r"js_function", r"[a-zA-Z_][a-zA-Z0-9_]*(?= *\()"),
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PatternRule(r'identifier', r"[a-zA-Z_][a-zA-Z0-9_]*"),
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PatternRule(r'integer', r"(?:0|[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?"),
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PatternRule(r'float', 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(r'eol', r'\n'),
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PatternRule(r'spaces', r' +'),
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PatternRule(r'delimiter', r'%=|&&=|&=|\(|\)|\*=|\+=|,|-=|\.{3}|\.|/=(?= |$)|::|:|;|<<=|>>=|>>>=|\?|\[|\]|^=|^^=|\{|\}|\|=|\|\|='),
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PatternRule(r'operator', r'!==|!=|!|%|&&|&|\*|\+\+|\+|--|-|/(?= |$)|<<=|<<|<=|<|===|==|=|>>>=|>>>|>>=|>>|>=|>|\\|\|\|'),
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RegionRule('js_regex', "/", RegexGrammar, "/[a-z]*"),
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RegionRule('string', "'", StringGrammar1, "'"),
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RegionRule('string', '"', StringGrammar2, '"'),
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]
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class JavascriptTabber2(tab.StackTabber2):
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open_tokens = {'delimiter': {'{': '}', '(': ')', '[': ']'}}
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close_tokens = {'delimiter': {'}': '{', ')': '(', ']': '['}}
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control_tokens = {'keyword': {'if': 1, 'else': 1, 'while': 1, 'do': 1, 'for': 1}}
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end_at_eof = False
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end_at_tokens = {'delimiter': {';': 1}}
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nocontinue_tokens = {'delimiter': {';': 1},
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'comment': 1,
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'comment.start': 1,
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'comment.data': 1,
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'comment.end': 1}
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start_free_tokens = {'string.start': 'string.end'}
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end_free_tokens = {'string.end': 'string.start'}
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def is_base(self, y):
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if y == 0:
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return True
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highlighter = self.mode.window.buffer.highlights[self.mode.name]
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if not highlighter.tokens[y]:
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return False
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t = highlighter.tokens[y][0]
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return t.name == 'js_reserved' and t.string == 'function'
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def _is_indent(self, t):
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return t.name == 'spaces'
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def _is_ignored(self, t):
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return t.fqname() in ('spaces', 'eol', 'comment', 'comment.start',
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'comment.data', 'comment.null', 'comment.end')
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class Javascript(mode.Fundamental):
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name = 'Javascript'
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extensions = ['.js']
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grammar = JavascriptGrammar
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tabbercls = JavascriptTabber2
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commentc = '//'
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opentokens = ('delimiter',)
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opentags = {'(': ')', '[': ']', '{': '}'}
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closetokens = ('delimiter',)
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closetags = {')': '(', ']': '[', '}': '{'}
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colors = {
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'js_function': ('blue', 'default', 'bold'),
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'js_class': ('magenta', 'default', 'bold'),
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'js_reserved': ('cyan', 'default', 'bold'),
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'js_regex.start': ('cyan', 'default', 'bold'),
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'js_regex.data': ('cyan', 'default', 'bold'),
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'js_regex.null': ('cyan', 'default', 'bold'),
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'js_regex.octal': ('magenta', 'default', 'bold'),
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'js_regex.escaped': ('magenta', 'default', 'bold'),
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'js_regex.end': ('cyan', 'default', 'bold'),
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}
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_bindings = {
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'close-paren': (')',),
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'close-brace': ('}',),
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'close-bracket': (']',),
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}
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install = Javascript.install
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