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
|
#!/usr/bin/env python
# A tool to parse the FormatStyle struct from Format.h and update the
# documentation in ../ClangFormatStyleOptions.rst automatically.
# Run from the directory in which this file is located to update the docs.
import collections
import os
import re
import urllib2
CLANG_DIR = os.path.join(os.path.dirname(__file__), '../..')
FORMAT_STYLE_FILE = os.path.join(CLANG_DIR, 'include/clang/Format/Format.h')
DOC_FILE = os.path.join(CLANG_DIR, 'docs/ClangFormatStyleOptions.rst')
def substitute(text, tag, contents):
replacement = '\n.. START_%s\n\n%s\n\n.. END_%s\n' % (tag, contents, tag)
pattern = r'\n\.\. START_%s\n.*\n\.\. END_%s\n' % (tag, tag)
return re.sub(pattern, '%s', text, flags=re.S) % replacement
def doxygen2rst(text):
text = re.sub(r'<tt>\s*(.*?)\s*<\/tt>', r'``\1``', text)
text = re.sub(r'\\c ([^ ,;\.]+)', r'``\1``', text)
text = re.sub(r'\\\w+ ', '', text)
return text
def indent(text, columns, indent_first_line=True):
indent = ' ' * columns
s = re.sub(r'\n([^\n])', '\n' + indent + '\\1', text, flags=re.S)
if not indent_first_line or s.startswith('\n'):
return s
return indent + s
class Option:
def __init__(self, name, type, comment):
self.name = name
self.type = type
self.comment = comment.strip()
self.enum = None
self.nested_struct = None
def __str__(self):
s = '**%s** (``%s``)\n%s' % (self.name, self.type,
doxygen2rst(indent(self.comment, 2)))
if self.enum:
s += indent('\n\nPossible values:\n\n%s\n' % self.enum, 2)
if self.nested_struct:
s += indent('\n\nNested configuration flags:\n\n%s\n' %self.nested_struct,
2)
return s
class NestedStruct:
def __init__(self, name, comment):
self.name = name
self.comment = comment.strip()
self.values = []
def __str__(self):
return '\n'.join(map(str, self.values))
class NestedField:
def __init__(self, name, comment):
self.name = name
self.comment = comment.strip()
def __str__(self):
return '\n* ``%s`` %s' % (
self.name,
doxygen2rst(indent(self.comment, 2, indent_first_line=False)))
class Enum:
def __init__(self, name, comment):
self.name = name
self.comment = comment.strip()
self.values = []
def __str__(self):
return '\n'.join(map(str, self.values))
class EnumValue:
def __init__(self, name, comment):
self.name = name
self.comment = comment
def __str__(self):
return '* ``%s`` (in configuration: ``%s``)\n%s' % (
self.name,
re.sub('.*_', '', self.name),
doxygen2rst(indent(self.comment, 2)))
def clean_comment_line(line):
match = re.match(r'^/// \\code(\{.(\w+)\})?$', line)
if match:
lang = match.groups()[1]
if not lang:
lang = 'c++'
return '\n.. code-block:: %s\n\n' % lang
if line == '/// \\endcode':
return ''
return line[4:] + '\n'
def read_options(header):
class State:
BeforeStruct, Finished, InStruct, InNestedStruct, InNestedFieldComent, \
InFieldComment, InEnum, InEnumMemberComment = range(8)
state = State.BeforeStruct
options = []
enums = {}
nested_structs = {}
comment = ''
enum = None
nested_struct = None
for line in header:
line = line.strip()
if state == State.BeforeStruct:
if line == 'struct FormatStyle {':
state = State.InStruct
elif state == State.InStruct:
if line.startswith('///'):
state = State.InFieldComment
comment = clean_comment_line(line)
elif line == '};':
state = State.Finished
break
elif state == State.InFieldComment:
if line.startswith('///'):
comment += clean_comment_line(line)
elif line.startswith('enum'):
state = State.InEnum
name = re.sub(r'enum\s+(\w+)\s*\{', '\\1', line)
enum = Enum(name, comment)
elif line.startswith('struct'):
state = State.InNestedStruct
name = re.sub(r'struct\s+(\w+)\s*\{', '\\1', line)
nested_struct = NestedStruct(name, comment)
elif line.endswith(';'):
state = State.InStruct
field_type, field_name = re.match(r'([<>:\w(,\s)]+)\s+(\w+);',
line).groups()
option = Option(str(field_name), str(field_type), comment)
options.append(option)
else:
raise Exception('Invalid format, expected comment, field or enum')
elif state == State.InNestedStruct:
if line.startswith('///'):
state = State.InNestedFieldComent
comment = clean_comment_line(line)
elif line == '};':
state = State.InStruct
nested_structs[nested_struct.name] = nested_struct
elif state == State.InNestedFieldComent:
if line.startswith('///'):
comment += clean_comment_line(line)
else:
state = State.InNestedStruct
nested_struct.values.append(NestedField(line.replace(';', ''), comment))
elif state == State.InEnum:
if line.startswith('///'):
state = State.InEnumMemberComment
comment = clean_comment_line(line)
elif line == '};':
state = State.InStruct
enums[enum.name] = enum
else:
raise Exception('Invalid format, expected enum field comment or };')
elif state == State.InEnumMemberComment:
if line.startswith('///'):
comment += clean_comment_line(line)
else:
state = State.InEnum
enum.values.append(EnumValue(line.replace(',', ''), comment))
if state != State.Finished:
raise Exception('Not finished by the end of file')
for option in options:
if not option.type in ['bool', 'unsigned', 'int', 'std::string',
'std::vector<std::string>',
'std::vector<IncludeCategory>',
'std::vector<RawStringFormat>']:
if enums.has_key(option.type):
option.enum = enums[option.type]
elif nested_structs.has_key(option.type):
option.nested_struct = nested_structs[option.type]
else:
raise Exception('Unknown type: %s' % option.type)
return options
options = read_options(open(FORMAT_STYLE_FILE))
options = sorted(options, key=lambda x: x.name)
options_text = '\n\n'.join(map(str, options))
contents = open(DOC_FILE).read()
contents = substitute(contents, 'FORMAT_STYLE_OPTIONS', options_text)
with open(DOC_FILE, 'wb') as output:
output.write(contents)
|
