pmacs3/mode/scheme.py

60 lines
2.3 KiB
Python

import commands, os.path, sets, string, sys, traceback
import color, completer, default, mode2, method, regex, tab2
from point import Point
from lex3 import Grammar, PatternRule, RegionRule, OverridePatternRule
import mode.lisp
class SchemeGrammar(Grammar):
rules = [
PatternRule(r'comment', r';.*$'),
PatternRule(r'delimiter', r'[()]'),
RegionRule(r'string', r'"', mode.lisp.StringGrammar, r'"'),
PatternRule(r'spaces', r' +'),
PatternRule(r'eol', r'\n'),
PatternRule(r'abbrev', r"'|`|,\@|,"),
# from r5rs
PatternRule(r'keyword', r'(?:=>|unquote-splicing|unquote|syntax-rules|set!|quote|quasiquote|or|map|loop|letrec-syntax|letrec|let-syntax|let\*|let|lambda|if|for-each|else|dynamic-wind|do|delay|define-syntax|define-macro|define|cond|case|call-with-output-file|call-with-input-file|call-with-current-continuation|begin|and)(?![^\n )])'),
PatternRule(r'boolean', r'#[tf]'),
PatternRule(r'char', r'#\\space|#\\newline|#\\.'),
PatternRule(r'number', '[+-]?[0-9][^ ()\n]+'),
PatternRule(r'number', '#[bodx][ie]?[^ ()\n]+'),
PatternRule(r'number', '#[ie][bodx]?[^ ()\n]+'),
PatternRule(r'variable', r'[a-zA-Z!$%&*/:<=>?\^_~][-a-zA-Z0-9!$%&*/:<=>?^_~+.@]*|\+|-|\.\.\.'),
]
class Scheme(mode2.Fundamental):
modename = 'Scheme'
extensions = ['.scm']
tabwidth = 2
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)
self.add_bindings('close-paren', (')',))
self.add_bindings('close-brace', ('}',))
self.add_bindings('close-bracket', (']',))
install = Scheme.install