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
|
"""
pygments.lexers.varnish
~~~~~~~~~~~~~~~~~~~~~~~
Lexers for Varnish configuration
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, include, bygroups, using, this, \
inherit, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Literal
__all__ = ['VCLLexer', 'VCLSnippetLexer']
class VCLLexer(RegexLexer):
"""
For Varnish Configuration Language (VCL).
.. versionadded:: 2.2
"""
name = 'VCL'
aliases = ['vcl']
filenames = ['*.vcl']
mimetypes = ['text/x-vclsrc']
def analyse_text(text):
# If the very first line is 'vcl 4.0;' it's pretty much guaranteed
# that this is VCL
if text.startswith('vcl 4.0;'):
return 1.0
# Skip over comments and blank lines
# This is accurate enough that returning 0.9 is reasonable.
# Almost no VCL files start without some comments.
elif '\nvcl 4.0;' in text[:1000]:
return 0.9
tokens = {
'probe': [
include('whitespace'),
include('comments'),
(r'(\.\w+)(\s*=\s*)([^;]*)(;)',
bygroups(Name.Attribute, Operator, using(this), Punctuation)),
(r'\}', Punctuation, '#pop'),
],
'acl': [
include('whitespace'),
include('comments'),
(r'[!/]+', Operator),
(r';', Punctuation),
(r'\d+', Number),
(r'\}', Punctuation, '#pop'),
],
'backend': [
include('whitespace'),
(r'(\.probe)(\s*=\s*)(\w+)(;)',
bygroups(Name.Attribute, Operator, Name.Variable.Global, Punctuation)),
(r'(\.probe)(\s*=\s*)(\{)',
bygroups(Name.Attribute, Operator, Punctuation), 'probe'),
(r'(\.\w+\b)(\s*=\s*)([^;\s]*)(\s*;)',
bygroups(Name.Attribute, Operator, using(this), Punctuation)),
(r'\{', Punctuation, '#push'),
(r'\}', Punctuation, '#pop'),
],
'statements': [
(r'(\d\.)?\d+[sdwhmy]', Literal.Date),
(r'(\d\.)?\d+ms', Literal.Date),
(r'(vcl_pass|vcl_hash|vcl_hit|vcl_init|vcl_backend_fetch|vcl_pipe|'
r'vcl_backend_response|vcl_synth|vcl_deliver|vcl_backend_error|'
r'vcl_fini|vcl_recv|vcl_purge|vcl_miss)\b', Name.Function),
(r'(pipe|retry|hash|synth|deliver|purge|abandon|lookup|pass|fail|ok|'
r'miss|fetch|restart)\b', Name.Constant),
(r'(beresp|obj|resp|req|req_top|bereq)\.http\.[a-zA-Z_-]+\b', Name.Variable),
(words((
'obj.status', 'req.hash_always_miss', 'beresp.backend', 'req.esi_level',
'req.can_gzip', 'beresp.ttl', 'obj.uncacheable', 'req.ttl', 'obj.hits',
'client.identity', 'req.hash_ignore_busy', 'obj.reason', 'req.xid',
'req_top.proto', 'beresp.age', 'obj.proto', 'obj.age', 'local.ip',
'beresp.uncacheable', 'req.method', 'beresp.backend.ip', 'now',
'obj.grace', 'req.restarts', 'beresp.keep', 'req.proto', 'resp.proto',
'bereq.xid', 'bereq.between_bytes_timeout', 'req.esi',
'bereq.first_byte_timeout', 'bereq.method', 'bereq.connect_timeout',
'beresp.do_gzip', 'resp.status', 'beresp.do_gunzip',
'beresp.storage_hint', 'resp.is_streaming', 'beresp.do_stream',
'req_top.method', 'bereq.backend', 'beresp.backend.name', 'beresp.status',
'req.url', 'obj.keep', 'obj.ttl', 'beresp.reason', 'bereq.retries',
'resp.reason', 'bereq.url', 'beresp.do_esi', 'beresp.proto', 'client.ip',
'bereq.proto', 'server.hostname', 'remote.ip', 'req.backend_hint',
'server.identity', 'req_top.url', 'beresp.grace', 'beresp.was_304',
'server.ip', 'bereq.uncacheable'), suffix=r'\b'),
Name.Variable),
(r'[!%&+*\-,/<.}{>=|~]+', Operator),
(r'[();]', Punctuation),
(r'[,]+', Punctuation),
(words(('hash_data', 'regsub', 'regsuball', 'if', 'else',
'elsif', 'elif', 'synth', 'synthetic', 'ban',
'return', 'set', 'unset', 'import', 'include', 'new',
'rollback', 'call'), suffix=r'\b'),
Keyword),
(r'storage\.\w+\.\w+\b', Name.Variable),
(words(('true', 'false')), Name.Builtin),
(r'\d+\b', Number),
(r'(backend)(\s+\w+)(\s*\{)',
bygroups(Keyword, Name.Variable.Global, Punctuation), 'backend'),
(r'(probe\s)(\s*\w+\s)(\{)',
bygroups(Keyword, Name.Variable.Global, Punctuation), 'probe'),
(r'(acl\s)(\s*\w+\s)(\{)',
bygroups(Keyword, Name.Variable.Global, Punctuation), 'acl'),
(r'(vcl )(4.0)(;)$',
bygroups(Keyword.Reserved, Name.Constant, Punctuation)),
(r'(sub\s+)([a-zA-Z]\w*)(\s*\{)',
bygroups(Keyword, Name.Function, Punctuation)),
(r'([a-zA-Z_]\w*)'
r'(\.)'
r'([a-zA-Z_]\w*)'
r'(\s*\(.*\))',
bygroups(Name.Function, Punctuation, Name.Function, using(this))),
(r'[a-zA-Z_]\w*', Name),
],
'comment': [
(r'[^*/]+', Comment.Multiline),
(r'/\*', Comment.Multiline, '#push'),
(r'\*/', Comment.Multiline, '#pop'),
(r'[*/]', Comment.Multiline),
],
'comments': [
(r'#.*$', Comment),
(r'/\*', Comment.Multiline, 'comment'),
(r'//.*$', Comment),
],
'string': [
(r'"', String, '#pop'),
(r'[^"\n]+', String), # all other characters
],
'multistring': [
(r'[^"}]', String),
(r'"\}', String, '#pop'),
(r'["}]', String),
],
'whitespace': [
(r'L?"', String, 'string'),
(r'\{"', String, 'multistring'),
(r'\n', Text),
(r'\s+', Text),
(r'\\\n', Text), # line continuation
],
'root': [
include('whitespace'),
include('comments'),
include('statements'),
(r'\s+', Text),
],
}
class VCLSnippetLexer(VCLLexer):
"""
For Varnish Configuration Language snippets.
.. versionadded:: 2.2
"""
name = 'VCLSnippets'
aliases = ['vclsnippets', 'vclsnippet']
mimetypes = ['text/x-vclsnippet']
filenames = []
def analyse_text(text):
# override method inherited from VCLLexer
return 0
tokens = {
'snippetspre': [
(r'\.\.\.+', Comment),
(r'(bereq|req|req_top|resp|beresp|obj|client|server|local|remote|'
r'storage)($|\.\*)', Name.Variable),
],
'snippetspost': [
(r'(backend)\b', Keyword.Reserved),
],
'root': [
include('snippetspre'),
inherit,
include('snippetspost'),
],
}
|
