pmacs3/mode/elisp.py

import commands, os.path, sets, string, sys, traceback
import color, completer, default, mode, method, regex, tab
from point import Point
from lex import Grammar, PatternRule, RegionRule, OverridePatternRule

class StringGrammar(Grammar):
    rules = [
        PatternRule(r'octal', r'\\[0-7]{3}'),
        PatternRule(r'escaped', r'\\.'),
    ]

class ELispGrammar(Grammar):
    rules = [
        PatternRule(r'comment', r';.*$'),
        PatternRule(r'elisp_reserved', r'(?:nil)(?![a-zA-Z0-9_])'),
        PatternRule(r'elisp_keyword', r'(?:while|when|unless|setq|require|or|not|mapcar|list|let|lambda|if|exists|equal|defvar|defun|defalias|count|cons|cdr|car|apply|and)(?![a-zA-Z0-9_])'),
        PatternRule(r'elisp_symbol', r"'[a-zA-Z_][a-zA-Z0-9-_]*"),
        PatternRule(r'elisp_type', r":[a-zA-Z_][a-zA-Z0-9-_]*"),
        PatternRule(r'attribute', r"&[a-zA-Z_][a-zA-Z0-9-_]*"),
        PatternRule(r'bareword', r"[a-zA-Z_][a-zA-Z0-9-_]*"),
        PatternRule(r"integer", r"(?<![\.0-9a-zA-Z_])(?:0|-?[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?(?![\.0-9a-zA-Z_])"),
        PatternRule(r"float", r"(?<![\.0-9a-zA-Z_])(?:[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+)(?![\.0-9a-zA-Z_])"),
        PatternRule(r"imaginary", r"(?<![\.0-9a-zA-Z_])(?:[0-9]+|(?:[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+)[jJ])(?![\.0-9a-zA-Z_])"),
        RegionRule(r'string', r'"', StringGrammar, r'"'),
        PatternRule(r'eol', r'\n$'),
    ]

class ELispTabber(tab.StackTabber):
    pass

class ELisp(mode.Fundamental):
    modename    = 'ELisp'
    basenames   = ['.emacs']
    extensions  = ['.el']
    tabbercls   = ELispTabber
    grammar     = ELispGrammar
    opentokens  = ('delimiter',)
    opentags    = {'(': ')', '[': ']', '{': '}'}
    closetokens = ('delimiter',)
    closetags   = {')': '(', ']': '[', '}': '{'}
    colors      = {
        'elisp_keyword':  ('cyan', 'default'),
        'elisp_reserved': ('blue', 'default'),
        'elisp_symbol':   ('magenta', 'default'),
        'elisp_type':     ('blue', 'default'),
    }
    def __init__(self, w):
        mode.Fundamental.__init__(self, w)
        # tag matching
        self.add_bindings('close-paren', (')',))
        self.add_bindings('close-brace', ('}',))
        self.add_bindings('close-bracket', (']',))
        ## add lisp-specific methods
        #self.add_action_and_bindings(LispCheckSyntax(), ('C-c s',))

install = ELisp.install