380 lines
16 KiB
Python
380 lines
16 KiB
Python
import commands, os.path, sets, string
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import color, completer, default, mode2, lex2, method, regex, tab2
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import ctag_python
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from point2 import Point
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from lex2 import Grammar, PatternRule, RegionRule
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class StringGrammar(Grammar):
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rules = [
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PatternRule(name=r'octal', pattern=r'\\[0-7]{3}'),
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PatternRule(name=r'escaped', pattern=r'\\.'),
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]
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class PythonGrammar(Grammar):
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rules = [
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PatternRule(name=r'functionname', pattern=r'(?<=def )[a-zA-Z_][a-zA-Z0-9_]*'),
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PatternRule(name=r'classname', pattern=r'(?<=class )[a-zA-Z_][a-zA-Z0-9_]*'),
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PatternRule(name=r'reserved', pattern=r'(?:True|None|False|Exception|self)(?![a-zA-Z0-9_])'),
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PatternRule(name=r'keyword', pattern=r'(?:yield|while|try|return|raise|print|pass|or|not|lambda|is|in|import|if|global|from|for|finally|exec|except|else|elif|del|def|continue|class|break|assert|as|and)(?![a-zA-Z0-9_])'),
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PatternRule(name=r"builtin", pattern=r'(?<!\.)(?:zip|xrange|vars|unicode|unichr|type|tuple|super|sum|str|staticmethod|sorted|slice|setattr|set|round|repr|reduce|raw_input|range|property|pow|ord|open|oct|object|max|min|map|long|locals|list|len|iter|issubclass|isinstance|int|input|id|hex|hash|hasattr|globals|getattr|frozenset|float|filter|file|execfile|eval|enumerate|divmod|dir|dict|delattr|complex|compile|coerce|cmp|classmethod|chr|callable|bool)(?![a-zA-Z0-9_])'),
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PatternRule(name=r'methodcall', pattern=r'(?<=\. )[a-zA-Z_][a-zA-Z0-9_]*(?= *\()'),
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PatternRule(name=r'functioncall', pattern=r'[a-zA-Z_][a-zA-Z0-9_]*(?= *\()'),
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PatternRule(name=r'system_identifier', pattern=r'__[a-zA-Z0-9_]+__'),
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PatternRule(name=r'private_identifier', pattern=r'__[a-zA-Z0-9_]*'),
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PatternRule(name=r'hidden_identifier', pattern=r'_[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'delimiter', pattern=r'\(|\)|\[|\]|{|}|@|,|:|\.|`|=|;|\+=|-=|\*=|/=|//=|%=|&=|\|=|\^=|>>=|<<=|\*\*='),
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PatternRule(name=r"operator", pattern=r"\+|<>|<<|<=|<|-|>>|>=|>|\*\*|&|\*|\||/|\^|==|//|~|!=|%"),
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PatternRule(name=r"integer", pattern=r"(?<![\.0-9a-zA-Z_])(?:0|[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?(?![\.0-9a-zA-Z_])"),
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PatternRule(name=r"float", pattern=r"(?<![\.0-9a-zA-Z_])(?:[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+)(?![\.0-9a-zA-Z_])"),
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PatternRule(name=r"imaginary", pattern=r"(?<![\.0-9a-zA-Z_])(?:[0-9]+|(?:[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+)[jJ])(?![\.0-9a-zA-Z_])"),
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RegionRule(name=r'string', start=r'"""', grammar=StringGrammar(), end=r'"""'),
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RegionRule(name=r'string', start=r"'''", grammar=StringGrammar(), end=r"'''"),
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RegionRule(name=r'string', start=r'"', grammar=StringGrammar(), end=r'"'),
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RegionRule(name=r'string', start=r"'", grammar=StringGrammar(), end=r"'"),
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PatternRule(name=r'comment', pattern=r'#.*$'),
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PatternRule(name=r'continuation', pattern=r'\\$'),
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]
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class PythonTabber(tab2.StackTabber):
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endlevel_names = ('pass', 'return', 'yield', 'raise', 'break', 'continue')
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startlevel_names = ('if', 'try', 'class', 'def', 'for', 'while', 'try')
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def __init__(self, m):
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tab2.StackTabber.__init__(self, m)
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self.base_level = 0
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def is_base(self, y):
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if y == 0:
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# we always know that line 0 is indented at the 0 level
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return True
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tokens = self.get_tokens(y)
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if not tokens:
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# if a line has no tokens, we don't know much about its indentation
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return False
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elif tokens[0].name in self.startlevel_names:
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# if a line has no whitespace and beings with something like
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# 'while','class','def','if',etc. then we can start at it
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return True
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else:
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# otherwise, we can't be sure that its level is correct
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return False
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def get_level(self, y):
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self._calc_level(y)
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return self.lines.get(y)
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def _calc_level(self, y):
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# ok, so first remember where we are going, and find our starting point
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target = y
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while not self.is_base(y) and y > 0:
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y -= 1
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# ok, so clear out our stack and then loop over each line
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self.popped = False
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self.markers = []
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while y <= target:
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self.continued = False
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self.last_popped = self.popped
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self.popped = False
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tokens = self.get_tokens(y)
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currlvl = self.get_curr_level()
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# if we were continuing, let's pop that previous continuation token
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# and note that we're continuing
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if self.markers and self.markers[-1].name == 'cont':
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raise Exception, repr(self.markers)
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self.continued = True
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self._pop()
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# if we haven't reached the target-line yet, we can detect how many
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# levels of unindention, if any, the user chose on previous lines
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if y < target and tokens:
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if self.token_is_whitespace(y, 0):
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l = len(tokens[0].string)
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else:
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l = 0
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while currlvl > l:
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self._pop()
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currlvl = self.get_curr_level()
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self.popped = True
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# ok, having done all that, we can now process each token on the line
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for i in range(0, len(tokens)):
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currlvl = self._handle_token(currlvl, y, i)
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# so let's store the level for this line, as well as some debugging
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self.lines[y] = currlvl
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self.record[y] = tuple(self.markers)
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y += 1
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def _handle_close_token(self, currlvl, y, i):
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try:
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return tab2.StackTabber._handle_close_token(self, currlvl, y, i)
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except:
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return currlvl
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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 fqname == 'continuation':
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# we need to pop the indentation level over, unless last line was
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# also a continued line
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if self.continued:
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self._opt_append('cont', currlvl)
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else:
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self._opt_append('cont', currlvl + 4)
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elif fqname == 'string.start':
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# while inside of a string, there is no indention leve
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self._opt_append('string', None)
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elif fqname == 'string.end':
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# since we're done with the string, resume our indentation level
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self._opt_pop('string')
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elif fqname == 'delimiter':
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# we only reall care about a colon as part of a one-line statement,
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# i.e. "while ok: foo()" or "if True: print 3"
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if token.string == ':':
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if self.markers and self.markers[-1].name in ('[', '{'):
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pass
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elif self.is_rightmost_token(y, i):
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pass
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else:
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self._pop()
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elif fqname == 'keyword':
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if token.string in self.endlevel_names:
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# we know we'll unindent at least once
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self._pop()
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self.popped = True
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elif token.string in self.startlevel_names and self.is_leftmost_token(y, i):
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# we know we will indent exactly once
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self._append(token.string, currlvl + 4)
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elif token.string in ('elif', 'else') and self.is_leftmost_token(y, i):
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# we know we'll unindent at least to the first if/elif
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if not self.popped and not self.last_popped:
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self._pop_until('if', 'elif')
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currlvl = self.get_curr_level()
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self._append(token.string, currlvl + 4)
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elif token.string == 'except' and self.is_leftmost_token(y, i):
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# we know we'll unindent at least to the first try
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if not self.popped and not self.last_popped:
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self._pop_until('try')
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currlvl = self.get_curr_level()
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self._append(token.string, currlvl + 4)
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elif token.string == 'finally' and self.is_leftmost_token(y, i):
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# we know we'll unindent at least to the first try/except
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if not self.popped and not self.last_popped:
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self._pop_until('try', 'except')
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currlvl = self.get_curr_level()
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self._append(token.string, currlvl + 4)
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return currlvl
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class Python(mode2.Fundamental):
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tabbercls = PythonTabber
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grammar = PythonGrammar()
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opentoken = 'delimiter'
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opentags = {'(': ')', '[': ']', '{': '}'}
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closetoken = 'delimiter'
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closetags = {')': '(', ']': '[', '}': '{'}
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def __init__(self, w):
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mode2.Fundamental.__init__(self, w)
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# tag matching
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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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# add python-specific methods
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self.add_action_and_bindings(PythonCheckSyntax(), ('C-c s',))
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self.add_action_and_bindings(PythonDictCleanup(), ('C-c h',))
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self.add_action_and_bindings(PythonUpdateTags(), ('C-c t',))
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self.add_action_and_bindings(PythonTagComplete(), ('C-c k',))
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# highlighting
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self.colors = {
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'keyword': color.build('cyan', 'default'),
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#'reserved': color.build('cyan', 'default'),
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'reserved': color.build('magenta', 'default'),
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'builtin': color.build('cyan', 'default'),
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'functionname': color.build('blue', 'default'),
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'classname': color.build('green', '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.format': color.build('yellow', 'default'),
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'string.end': color.build('green', 'default'),
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'integer': color.build('default', 'default'),
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'float': color.build('default', 'default'),
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'imaginary': color.build('default', 'default'),
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'comment': color.build('red', 'default'),
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'continuation': color.build('red', 'default'),
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'system_identifier': color.build('cyan', 'default'),
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}
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self.pythonlib = "."
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def name(self):
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return "Python"
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class PythonSetLib(method.Method):
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'''Set the path(s) to find perl modules'''
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def _args(self):
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return [method.Argument("lib", type=type(""), prompt="Python Path: ",
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default=default.build_constant("."))]
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def _execute(self, w, **vargs):
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w.mode.pythonlib = vargs['lib']
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class PythonCheckSyntax(method.Method):
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'''Check the syntax of the current python file'''
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def _execute(self, w, **vargs):
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mod = os.path.splitext(os.path.basename(w.buffer.path))[0]
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cmd = "PYTHONPATH=%s python -c 'import %s'" % (w.mode.pythonlib, mod)
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(status, output) = commands.getstatusoutput(cmd)
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if status == 0:
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w.application.set_error("Syntax OK")
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w.application.data_buffer("python-syntax", output, switch_to=False)
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else:
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output = output + "\ncommand exit status: %d" % (status)
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w.application.data_buffer("python-syntax", output, switch_to=True)
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class PythonUpdateTags(method.Method):
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'''Update the CTag data associated with a python buffer'''
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def _args(self):
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return [method.Argument("lib", prompt="Module Base: ", datatype='path',
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default=default.build_constant("."))]
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def _execute(self, w, **vargs):
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w.mode.ctagger = ctag_python.PythonCTagger()
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w.mode.ctagger.process_paths([vargs['lib']])
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w.application.set_error('Tag data updated')
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class PythonTagComplete(method.Method):
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'''Complete a symbol using tag data'''
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def _execute(self, w, **vargs):
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if not w.mode.ctagger.packages:
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w.application.methods['python-update-tags'].execute(w)
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return
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cursor = w.logical_cursor()
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b = w.buffer
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line = b.lines[cursor.y]
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end = cursor.x
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start = cursor.x
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word_chars = string.letters + string.digits + '_'
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if start == 0:
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w.application.set_error('walrus 1')
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return
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c = line[start - 1]
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if c == '(':
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w.application.set_error('goldfinch 1')
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return
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elif c not in word_chars:
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w.application.set_error('walrus 2')
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return
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while start > 0 and line[start - 1] in word_chars:
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start -= 1
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if start == end:
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w.application.set_error('walrus 3')
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return
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word = line[start:end]
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candidates = []
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seen = sets.Set()
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for p in w.mode.ctagger.packages.iterkeys():
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if p.startswith(word):
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if p in seen:
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continue
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candidates.append(p)
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seen.add(p)
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for e in w.mode.ctagger.entries.itervalues():
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if e.symbol.startswith(word):
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if e.symbol in seen:
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continue
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candidates.append(e.symbol)
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seen.add(e.symbol)
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if len(candidates) == 0:
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w.application.set_error('No match: %r' % word)
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return
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elif len(candidates) == 1:
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newword = candidates[0]
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if word == newword:
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w.application.set_error('Already completed!')
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return
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else:
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w.application.set_error('Unique match!')
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else:
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newword = completer.find_common_string(candidates)
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w.application.set_error('Ambiguous match: %r' % (candidates))
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b.delete_string(Point(start, cursor.y), Point(end, cursor.y))
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b.insert_string(Point(start, cursor.y), newword)
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class PythonDictCleanup(method.Method):
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'''Align assignment blocks and literal dictionaries'''
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def _execute(self, w, **vargs):
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cursor = w.logical_cursor()
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b = w.buffer
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# so this is where we will store the groups that we find
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groups_by_line = {}
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# the regex we will try
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regexes = [regex.python_dict_cleanup,
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regex.python_assign_cleanup]
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# if we aren't in a hash, inform the user and exit
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line = b.lines[cursor.y]
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myregex = None
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for r in regexes:
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if r.match(line):
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myregex = r
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if myregex is None:
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raise Exception, "Not a python dict line"
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groups_by_line[cursor.y] = myregex.match(line).groups()
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# find the beginning of this hash block
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start = 0
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i = cursor.y - 1
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while i >= 0:
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line = b.lines[i]
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m = myregex.match(line)
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if not m:
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start = i + 1
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break
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else:
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groups_by_line[i] = m.groups()
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i -= 1
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# find the end of this hash block
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end = len(b.lines) - 1
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i = cursor.y + 1
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while i < len(b.lines):
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line = b.lines[i]
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m = myregex.match(line)
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if not m:
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end = i - 1
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break
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else:
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groups_by_line[i] = m.groups()
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i += 1
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# assume that the least indented line is correct
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indent_w = min([len(groups_by_line[k][0]) for k in groups_by_line])
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# find the longest hash key to base all the other padding on
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key_w = max([len(groups_by_line[k][1]) for k in groups_by_line])
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# for each line, format it correctly
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keys = groups_by_line.keys()
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keys.sort()
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data = ''
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for i in keys:
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indent_pad = ' ' * indent_w
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key = groups_by_line[i][1]
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sep = groups_by_line[i][3]
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value = groups_by_line[i][5]
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key_pad = ' ' * (key_w - len(key))
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if sep == '=':
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data += indent_pad + key + key_pad + ' ' + sep + ' ' + value + '\n'
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else:
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data += indent_pad + key + sep + ' ' + key_pad + value + '\n'
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# remove the old text and add the new
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start_p = Point(0, start)
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end_p = Point(0, end + 1)
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w.kill(start_p, end_p)
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w.insert_string(start_p, data)
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