pmacs3/mode/scheme.py

60 lines
2.4 KiB
Python

import commands, os.path, sets, string, sys, traceback
import color, completer, default, mode2, method, regex, tab2
from point2 import Point
from lex3 import Grammar, PatternRule, RegionRule, OverridePatternRule
import mode.lisp
class SchemeGrammar(Grammar):
rules = [
PatternRule(r'comment', r';.*$'),
PatternRule(r'delimiter', r'[()]'),
RegionRule(r'string', r'"', mode.lisp.StringGrammar, r'"'),
PatternRule(r'spaces', r' +'),
PatternRule(r'eol', r'\n'),
PatternRule(r'abbrev', r"'|`|,\@|,"),
# from r5rs
PatternRule(r'keyword', r'(?:=>|unquote-splicing|unquote|syntax-rules|set!|quote|quasiquote|or|map|loop|letrec-syntax|letrec|let-syntax|let\*|let|lambda|if|for-each|else|dynamic-wind|do|delay|define-syntax|define-macro|define|cond|case|call-with-output-file|call-with-input-file|call-with-current-continuation|begin|and)(?![^ )])'),
PatternRule(r'boolean', r'#[tf]'),
PatternRule(r'char', r'#\\space|#\\newline|#\\.'),
PatternRule(r'number', '[+-]?[0-9][^ ()\n]+'),
PatternRule(r'number', '#[bodx][ie]?[^ ()\n]+'),
PatternRule(r'number', '#[ie][bodx]?[^ ()\n]+'),
PatternRule(r'variable', r'[a-zA-Z!$%&*/:<=>?\^_~][-a-zA-Z0-9!$%&*/:<=>?^_~+.@]*|\+|-|\.\.\.'),
]
class Scheme(mode2.Fundamental):
tabbercls = mode.lisp.LispTabber
grammar = SchemeGrammar
opentokens = ('delimiter',)
opentags = {'(': ')'}
closetokens = ('delimiter',)
closetags = {')': '('}
colors = {
'comment': ('red', 'default'),
'keyword': ('cyan', 'default'),
'builtin': ('cyan', 'default'),
'string.start': ('green', 'default'),
'string.null': ('green', 'default'),
'string.octal': ('magenta', 'default'),
'string.escaped': ('magenta', 'default'),
'string.end': ('green', 'default'),
'char': ('green', 'default'),
'boolean': ('magenta', 'default'),
'number': ('default', 'default'),
}
def __init__(self, w):
mode2.Fundamental.__init__(self, w)
# tag matching
self.add_bindings('close-paren', (')',))
self.add_bindings('close-brace', ('}',))
self.add_bindings('close-bracket', (']',))
## add scheme-specific methods
#self.add_action_and_bindings(SchemeCheckSyntax(), ('C-c s',))
def name(self):
return "Scheme"