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big improvements to C mode 

--HG--
branch : pmacs2
This commit is contained in:
moculus 2007-07-11 21:29:06 +00:00
parent 1fbc9d4ceb
commit ca539102d7
3 changed files with 61 additions and 19 deletions
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55
mode_c.py
View File

@ -4,23 +4,29 @@ from mode_python import StringGrammar
# this might not be complete...
# see http://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_3.html#SEC44
class MacroGrammar(Grammar):
rules = [
PatternRule('name', r'(?:(?<=#define )) *[a-zA-Z_][a-zA-Z0-9_]*'),
PatternRule('continued', r'\\ *$'),
PatternRule(r"unop", r"\+=|-=|\*=|/=|//=|%=|&=\|\^=|>>=|<<=|\*\*="),
PatternRule(r'binop', r"\+|<>|<<|<=|<|-|>>|>=|>|\*\*|&|\*|\||/|\^|==|//|~|!=|%"),
PatternRule(r"delimiter", r"->|\.|\(|\)|\[|\]|{|}|@|,|:|`|;|=|\?"),
PatternRule(r"integer", r"-?(?:0(?![x0-9])|[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?"),
PatternRule(r"float", r"-?(?:[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+)"),
RegionRule(r'string', '"', StringGrammar, '"'),
PatternRule(r'char', r"'.'|'\\.'|'\\[0-7]{3}'")
PatternRule(r'char', r"'.'|'\\.'|'\\[0-7]{3}'"),
PatternRule(r"continued", r"\\\n$"),
]
class CGrammar(Grammar):
rules = [
PatternRule(r'include', r'#include(?!=[a-zA-Z0-9_])'),
PatternRule(r'header', r'<[-A-Za-z/0-9_\.]+>|"[-A-Za-z/0-9_\.]+"'),
PatternRule(r'macro', r'#(?:else|endif)'),
RegionRule(r'macro', r'#(?:assert|cpu|define|elif|error|ident|ifdef|ifndef|if|import|include_next|line|machine|pragma|pragma_once|system|unassert|undef|warning)(?!=[a-zA-Z0-9_])', MacroGrammar, r'[^\\ ] *$'),
RegionRule(r'macrocomment', r'#if +(?:0|NULL|FALSE)', Grammar, r'#endif'),
RegionRule(r'macro', r'#(?:assert|cpu|define|elif|else|endif|error|ident|ifdef|ifndef|if|import|include_next|line|machine|pragma|pragma_once|system|unassert|undef|warning)(?!=[a-zA-Z0-9_])', MacroGrammar, r'\n$'),
RegionRule(r'comment', '/\*', Grammar, '\*/'),
PatternRule(r'comment', r'//.*$'),
@ -41,7 +47,8 @@ class CGrammar(Grammar):
PatternRule(r"integer", r"(?:0(?![x0-9])|[1-9][0-9]*|0[0-7]+|0[xX][0-9a-fA-F]+)[lL]?"),
PatternRule(r"float", r"[0-9]+\.[0-9]*|\.[0-9]+|(?:[0-9]|[0-9]+\.[0-9]*|\.[0-9]+)[eE][\+-]?[0-9]+"),
RegionRule(r'string', '"', StringGrammar, '"'),
PatternRule(r'char', r"'.'|'\\.'|'\\[0-7]{3}'")
PatternRule(r'char', r"'.'|'\\.'|'\\[0-7]{3}'"),
PatternRule(r"eol", r"\n$"),
]
class CTabber(tab2.StackTabber):
@ -81,6 +88,9 @@ class CTabber(tab2.StackTabber):
def _handle_open_token(self, currlvl, y, i):
self._opt_pop('cont')
token = self.get_token(y, i)
if token.string == '{':
self._opt_pop('cond')
currlvl = tab2.StackTabber._handle_open_token(self, currlvl, y, i)
return currlvl
def _handle_close_token(self, currlvl, y, i):
@ -89,7 +99,10 @@ class CTabber(tab2.StackTabber):
token = self.get_token(y, i)
if self.is_rightmost_token(y, i):
if token.string == '}':
self._opt_pop('cond')
self._opt_pop('cont')
elif self._peek_name() == 'cond':
pass
else:
self._opt_append('cont', currlvl + 4)
return currlvl
@ -97,7 +110,18 @@ class CTabber(tab2.StackTabber):
token = self.get_token(y, i)
fqname = token.fqname()
if fqname == 'delimiter' and token.string == ';':
self._opt_pop('cond')
self._opt_pop('cont')
self._opt_pop('cond')
#currlvl = self.get_curr_level()
elif fqname == 'keyword':
if token.string in ('do', 'else', 'for', 'if', 'while'):
self._append('cond', currlvl + 4)
elif token.string == 'break':
self._opt_pop('case')
elif token.string == 'case':
self._opt_append('case', currlvl + 4)
elif fqname == 'string.start':
self._opt_append('string', None)
@ -122,17 +146,17 @@ class CTabber(tab2.StackTabber):
self._opt_pop('macroblock', None)
if self.is_rightmost_token(y, i):
if(not fqname.startswith('string') and
if self._has_markers() and self._peek_name() == 'cond':
pass
elif(not fqname.startswith('string') and
not fqname.startswith('comment') and
not fqname.startswith('macro') and
not fqname == 'delimiter' and
not fqname == 'header' and
not fqname == 'null' and
not fqname == 'eol' and
token.string not in ('}', ';', '(', '{', '[', ',')):
try:
self._opt_append('cont', currlvl + 4)
except:
raise Exception, "%r + 4 for %r (%r) on line %d" % \
(currlvl, fqname, token.string, y)
return currlvl
class C(mode2.Fundamental):
@ -163,14 +187,21 @@ class C(mode2.Fundamental):
'macro.start': color.build('blue', 'default'),
'macro.name': color.build('yellow', 'default'),
'macro.null': color.build('magenta', 'default'),
#'macro.null': color.build('default', 'default'),
'macro.continued': color.build('red', 'default'),
'macro.delimiter': color.build('default', 'default'),
'macro.integer': color.build('green', 'default'),
'macro.float': color.build('green', 'default'),
'macro.char': color.build('green', 'default'),
'macro.string.start': color.build('green', 'default'),
'macro.string.escaped': color.build('magenta', 'default'),
'macro.string.octal': color.build('magenta', 'default'),
#'macro.string.escaped': color.build('default', 'default'),
#'macro.string.octal': color.build('default', 'default'),
'macro.string.null': color.build('green', 'default'),
'macro.string.end': color.build('green', 'default'),
'macro.end': color.build('magenta', 'default'),
#'macro.end': color.build('default', 'default'),
'label': color.build('magenta', 'default'),
'keyword': color.build('cyan', 'default'),

2
mode_perl.py
View File

@ -99,7 +99,7 @@ class PerlGrammar(Grammar):
PatternRule(r'operator2', r"(?:xor|or|not|ne|lt|le|gt|ge|eq|cmp|and)(?![a-zA-Z_])"),
PatternRule(r'bareword', r'(?:[a-zA-Z_][a-zA-Z_0-9]*::)*[a-zA-Z_][a-zA-Z_0-9]*'),
PatternRule(r"eol", r"\n$"),
]
class PerlTabber(tab2.StackTabber):

11
tab2.py
View File

@ -164,8 +164,18 @@ class StackTabber(Tabber):
def _handle_other_token(self, currlvl, y, i):
return currlvl
def _has_markers(self):
return len(self.markers) > 0
def _empty(self):
return len(self.markers) == 0
def _append(self, name, level):
self.markers.append(Marker(name, level))
def _peek(self):
return self.markers[-1]
def _peek_name(self):
return self.markers[-1].name
def _peek_level(self):
return self.markers[-1].level
def _pop(self):
self.markers.pop(-1)
def _pop_until(self, *names):
@ -175,6 +185,7 @@ class StackTabber(Tabber):
return
else:
self.markers.pop(-1)
def _opt_append(self, name, level):
if self.markers and self.markers[-1].name == name:
pass