1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
# -*- coding: utf-8 -*-
"""
pygments.lexers.c_cpp
~~~~~~~~~~~~~~~~~~~~~
Lexers for C/C++ languages.
:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, bygroups, using, \
this, inherit, default, words
from pygments.util import get_bool_opt
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Error
__all__ = ['CLexer', 'CppLexer']
class CFamilyLexer(RegexLexer):
"""
For C family source code. This is used as a base class to avoid repetitious
definitions.
"""
#: optional Comment or Whitespace
_ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'
# The trailing ?, rather than *, avoids a geometric performance drop here.
#: only one /* */ style comment
_ws1 = r'\s*(?:/[*].*?[*]/\s*)?'
tokens = {
'whitespace': [
# preprocessor directives: without whitespace
(r'^#if\s+0', Comment.Preproc, 'if0'),
('^#', Comment.Preproc, 'macro'),
# or with whitespace
('^(' + _ws1 + r')(#if\s+0)',
bygroups(using(this), Comment.Preproc), 'if0'),
('^(' + _ws1 + ')(#)',
bygroups(using(this), Comment.Preproc), 'macro'),
(r'\n', Text),
(r'\s+', Text),
(r'\\\n', Text), # line continuation
(r'//(\n|[\w\W]*?[^\\]\n)', Comment.Single),
(r'/(\\\n)?[*][\w\W]*?[*](\\\n)?/', Comment.Multiline),
# Open until EOF, so no ending delimeter
(r'/(\\\n)?[*][\w\W]*', Comment.Multiline),
],
'statements': [
(r'(L?)(")', bygroups(String.Affix, String), 'string'),
(r"(L?)(')(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])(')",
bygroups(String.Affix, String.Char, String.Char, String.Char)),
(r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*', Number.Float),
(r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
(r'0x[0-9a-fA-F]+[LlUu]*', Number.Hex),
(r'0[0-7]+[LlUu]*', Number.Oct),
(r'\d+[LlUu]*', Number.Integer),
(r'\*/', Error),
(r'[~!%^&*+=|?:<>/-]', Operator),
(r'[()\[\],.]', Punctuation),
(words(('asm', 'auto', 'break', 'case', 'const', 'continue',
'default', 'do', 'else', 'enum', 'extern', 'for', 'goto',
'if', 'register', 'restricted', 'return', 'sizeof',
'static', 'struct', 'switch', 'typedef', 'union',
'volatile', 'while'),
suffix=r'\b'), Keyword),
(r'(bool|int|long|float|short|double|char|unsigned|signed|void)\b',
Keyword.Type),
(words(('inline', '_inline', '__inline', 'naked', 'restrict',
'thread', 'typename'), suffix=r'\b'), Keyword.Reserved),
# Vector intrinsics
(r'(__m(128i|128d|128|64))\b', Keyword.Reserved),
# Microsoft-isms
(words((
'asm', 'int8', 'based', 'except', 'int16', 'stdcall', 'cdecl',
'fastcall', 'int32', 'declspec', 'finally', 'int64', 'try',
'leave', 'wchar_t', 'w64', 'unaligned', 'raise', 'noop',
'identifier', 'forceinline', 'assume'),
prefix=r'__', suffix=r'\b'), Keyword.Reserved),
(r'(true|false|NULL)\b', Name.Builtin),
(r'([a-zA-Z_]\w*)(\s*)(:)(?!:)', bygroups(Name.Label, Text, Punctuation)),
(r'[a-zA-Z_]\w*', Name),
],
'root': [
include('whitespace'),
# functions
(r'((?:[\w*\s])+?(?:\s|[*]))' # return arguments
r'([a-zA-Z_]\w*)' # method name
r'(\s*\([^;]*?\))' # signature
r'([^;{]*)(\{)',
bygroups(using(this), Name.Function, using(this), using(this),
Punctuation),
'function'),
# function declarations
(r'((?:[\w*\s])+?(?:\s|[*]))' # return arguments
r'([a-zA-Z_]\w*)' # method name
r'(\s*\([^;]*?\))' # signature
r'([^;]*)(;)',
bygroups(using(this), Name.Function, using(this), using(this),
Punctuation)),
default('statement'),
],
'statement': [
include('whitespace'),
include('statements'),
('[{}]', Punctuation),
(';', Punctuation, '#pop'),
],
'function': [
include('whitespace'),
include('statements'),
(';', Punctuation),
(r'\{', Punctuation, '#push'),
(r'\}', Punctuation, '#pop'),
],
'string': [
(r'"', String, '#pop'),
(r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|'
r'u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', String.Escape),
(r'[^\\"\n]+', String), # all other characters
(r'\\\n', String), # line continuation
(r'\\', String), # stray backslash
],
'macro': [
(r'(include)(' + _ws1 + r')([^\n]+)',
bygroups(Comment.Preproc, Text, Comment.PreprocFile)),
(r'[^/\n]+', Comment.Preproc),
(r'/[*](.|\n)*?[*]/', Comment.Multiline),
(r'//.*?\n', Comment.Single, '#pop'),
(r'/', Comment.Preproc),
(r'(?<=\\)\n', Comment.Preproc),
(r'\n', Comment.Preproc, '#pop'),
],
'if0': [
(r'^\s*#if.*?(?<!\\)\n', Comment.Preproc, '#push'),
(r'^\s*#el(?:se|if).*\n', Comment.Preproc, '#pop'),
(r'^\s*#endif.*?(?<!\\)\n', Comment.Preproc, '#pop'),
(r'.*?\n', Comment),
]
}
stdlib_types = set((
'size_t', 'ssize_t', 'off_t', 'wchar_t', 'ptrdiff_t', 'sig_atomic_t', 'fpos_t',
'clock_t', 'time_t', 'va_list', 'jmp_buf', 'FILE', 'DIR', 'div_t', 'ldiv_t',
'mbstate_t', 'wctrans_t', 'wint_t', 'wctype_t'))
c99_types = set((
'_Bool', '_Complex', 'int8_t', 'int16_t', 'int32_t', 'int64_t', 'uint8_t',
'uint16_t', 'uint32_t', 'uint64_t', 'int_least8_t', 'int_least16_t',
'int_least32_t', 'int_least64_t', 'uint_least8_t', 'uint_least16_t',
'uint_least32_t', 'uint_least64_t', 'int_fast8_t', 'int_fast16_t', 'int_fast32_t',
'int_fast64_t', 'uint_fast8_t', 'uint_fast16_t', 'uint_fast32_t', 'uint_fast64_t',
'intptr_t', 'uintptr_t', 'intmax_t', 'uintmax_t'))
linux_types = set((
'clockid_t', 'cpu_set_t', 'cpumask_t', 'dev_t', 'gid_t', 'id_t', 'ino_t', 'key_t',
'mode_t', 'nfds_t', 'pid_t', 'rlim_t', 'sig_t', 'sighandler_t', 'siginfo_t',
'sigset_t', 'sigval_t', 'socklen_t', 'timer_t', 'uid_t'))
def __init__(self, **options):
self.stdlibhighlighting = get_bool_opt(options, 'stdlibhighlighting', True)
self.c99highlighting = get_bool_opt(options, 'c99highlighting', True)
self.platformhighlighting = get_bool_opt(options, 'platformhighlighting', True)
RegexLexer.__init__(self, **options)
def get_tokens_unprocessed(self, text):
for index, token, value in \
RegexLexer.get_tokens_unprocessed(self, text):
if token is Name:
if self.stdlibhighlighting and value in self.stdlib_types:
token = Keyword.Type
elif self.c99highlighting and value in self.c99_types:
token = Keyword.Type
elif self.platformhighlighting and value in self.linux_types:
token = Keyword.Type
yield index, token, value
class CLexer(CFamilyLexer):
"""
For C source code with preprocessor directives.
"""
name = 'C'
aliases = ['c']
filenames = ['*.c', '*.h', '*.idc']
mimetypes = ['text/x-chdr', 'text/x-csrc']
priority = 0.1
def analyse_text(text):
if re.search(r'^\s*#include [<"]', text, re.MULTILINE):
return 0.1
if re.search(r'^\s*#ifn?def ', text, re.MULTILINE):
return 0.1
class CppLexer(CFamilyLexer):
"""
For C++ source code with preprocessor directives.
"""
name = 'C++'
aliases = ['cpp', 'c++']
filenames = ['*.cpp', '*.hpp', '*.c++', '*.h++',
'*.cc', '*.hh', '*.cxx', '*.hxx',
'*.C', '*.H', '*.cp', '*.CPP']
mimetypes = ['text/x-c++hdr', 'text/x-c++src']
priority = 0.1
tokens = {
'statements': [
(words((
'catch', 'const_cast', 'delete', 'dynamic_cast', 'explicit',
'export', 'friend', 'mutable', 'namespace', 'new', 'operator',
'private', 'protected', 'public', 'reinterpret_cast',
'restrict', 'static_cast', 'template', 'this', 'throw', 'throws',
'try', 'typeid', 'typename', 'using', 'virtual',
'constexpr', 'nullptr', 'decltype', 'thread_local',
'alignas', 'alignof', 'static_assert', 'noexcept', 'override',
'final'), suffix=r'\b'), Keyword),
(r'char(16_t|32_t)\b', Keyword.Type),
(r'(class)(\s+)', bygroups(Keyword, Text), 'classname'),
# C++11 raw strings
(r'(R)(")([^\\()\s]{,16})(\()((?:.|\n)*?)(\)\3)(")',
bygroups(String.Affix, String, String.Delimiter, String.Delimiter,
String, String.Delimiter, String)),
# C++11 UTF-8/16/32 strings
(r'(u8|u|U)(")', bygroups(String.Affix, String), 'string'),
inherit,
],
'root': [
inherit,
# C++ Microsoft-isms
(words(('virtual_inheritance', 'uuidof', 'super', 'single_inheritance',
'multiple_inheritance', 'interface', 'event'),
prefix=r'__', suffix=r'\b'), Keyword.Reserved),
# Offload C++ extensions, http://offload.codeplay.com/
(r'__(offload|blockingoffload|outer)\b', Keyword.Pseudo),
],
'classname': [
(r'[a-zA-Z_]\w*', Name.Class, '#pop'),
# template specification
(r'\s*(?=>)', Text, '#pop'),
],
}
def analyse_text(text):
if re.search('#include <[a-z_]+>', text):
return 0.2
if re.search('using namespace ', text):
return 0.4
|
