98 lines
4.2 KiB
Python
98 lines
4.2 KiB
Python
import color, mode2, tab2
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from lex3 import Grammar, PatternRule, RegionRule
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class StringGrammar(Grammar):
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rules = [
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PatternRule(r'escaped', r'\\.'),
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PatternRule(r'variable', r"\${(?:[a-zA-Z0-9_]+|\?\$)}"),
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PatternRule(r"variable", r"\$[^({][a-zA-Z0-9_]*"),
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PatternRule(r'variable', r"\$(?=\()"),
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]
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class ShGrammar(Grammar):
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rules = [
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PatternRule(r'function', r'[a-zA-Z_][a-zA-Z0-9_]*(?= *\(\))'),
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PatternRule(r'reserved', r"(?:case|done|do|elif|else|esac|fi|for|function|if|in|select|then|until|while|time)(?![a-zA-Z0-9_=/])"),
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PatternRule(r'builtin', r"(?:source|alias|bg|bind|break|builtin|cd|command|compgen|complete|declare|dirs|disown|echo|enable|eval|exec|exit|export|fc|fg|getops|hash|help|history|jobs|kill|let|local|logout|popd|printf|pushd|pwd|readonly|read|return|set|shift|shopt|suspend|test|times|trap|type|ulimit|umask|unalias|unset|wait)(?![a-zA-Z0-9_=/])"),
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PatternRule(r'operator', r"(?:-eq|-ne|-gt|-lt|-ge|-le| = | != )"),
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PatternRule(r'delimiter', r";;|[\[\]\(\);\{\}|&><]"),
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RegionRule(r'eval', '`', StringGrammar, '`'),
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RegionRule(r'neval', r'\$\(', StringGrammar, r'\)'),
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PatternRule(r'variable', r"(?:^|(?<= ))[a-zA-Z_][a-zA-Z_][a-zA-Z0-9_]*(?==)"),
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PatternRule(r'variable', r"\${(?:[a-zA-Z0-9_]+|\?\$)}"),
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PatternRule(r"variable", r"\$[^({][a-zA-Z0-9_]*"),
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PatternRule(r'variable', r"\$(?=\()"),
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RegionRule(r'string', "'", Grammar(), "'"),
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RegionRule(r'string', '"', StringGrammar, '"'),
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PatternRule(r'comment', r'#.*$'),
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PatternRule(r'bareword', r'[a-zA-Z0-9_-]+'),
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PatternRule(r'continuation', r'\\\n$'),
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PatternRule(r'eol', r'\n$'),
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]
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class ShTabber(tab2.StackTabber):
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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 == 'function'
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def _handle_close_token(self, currlvl, y, i):
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s = self.get_token(y, i).string
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if s == ')' and self.markers and self._peek_name() == "case":
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# we have to ignore ) when used in "case" statements.
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return currlvl
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else:
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return tab2.StackTabber._handle_close_token(self, currlvl, y, i)
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def _handle_other_token(self, currlvl, y, i):
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token = self.get_token(y, i)
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fqname = token.fqname()
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if token.name == 'continuation':
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self._opt_append("cont", currlvl + 4)
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elif token.name == 'eol':
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self._opt_pop("cont")
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return currlvl
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class Sh(mode2.Fundamental):
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grammar = ShGrammar
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tabbercls = ShTabber
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opentokens = ('delimiter', 'reserved',)
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opentags = {'(': ')', '[': ']', '{': '}',
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'do': 'done', 'then': 'fi', 'case': 'esac'}
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closetokens = ('delimiter', 'reserved',)
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closetags = {')': '(', ']': '[', '}': '{',
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'done': 'do', 'fi': 'then', 'esac': 'case'}
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colors = {
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'builtin': ('cyan', 'default', 'bold'),
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'function': ('magenta', 'default', 'bold'),
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'reserved': ('magenta', 'default', 'bold'),
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'variable': ('yellow', 'default', 'bold'),
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'delimiter': ('default', 'default', 'bold'),
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'operator': ('magenta', 'default', 'bold'),
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'string.start': ('green', 'default'),
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'string.variable': ('yellow', 'default'),
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'string.null': ('green', 'default'),
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'string.end': ('green', 'default'),
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'eval.start': ('cyan', 'default'),
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'eval.variable': ('yellow', 'default'),
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'eval.null': ('cyan', 'default'),
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'eval.end': ('cyan', 'default'),
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#'neval.start': ('cyan', 'default'),
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#'neval.end': ('cyan', 'default'),
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'neval.start': ('yellow', 'default'),
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'neval.variable': ('yellow', 'default'),
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'neval.null': ('cyan', 'default'),
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'neval.end': ('yellow', 'default'),
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'comment': ('red', 'default'),
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'continuation': ('red', 'default'),
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}
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def name(self):
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return "Sh"
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