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"""
pygments.lexers.sieve
~~~~~~~~~~~~~~~~~~~~~
Lexer for Sieve file format.
https://tools.ietf.org/html/rfc5228
https://tools.ietf.org/html/rfc5173
https://tools.ietf.org/html/rfc5229
https://tools.ietf.org/html/rfc5230
https://tools.ietf.org/html/rfc5232
https://tools.ietf.org/html/rfc5235
https://tools.ietf.org/html/rfc5429
https://tools.ietf.org/html/rfc8580
:copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, bygroups
from pygments.token import Comment, Name, Literal, String, Text, Punctuation, \
Keyword
__all__ = ["SieveLexer"]
class SieveLexer(RegexLexer):
"""
Lexer for sieve format.
"""
name = 'Sieve'
filenames = ['*.siv', '*.sieve']
aliases = ['sieve']
url = 'https://en.wikipedia.org/wiki/Sieve_(mail_filtering_language)'
version_added = '2.6'
tokens = {
'root': [
(r'\s+', Text),
(r'[();,{}\[\]]', Punctuation),
# import:
(r'(?i)require',
Keyword.Namespace),
# tags:
(r'(?i)(:)(addresses|all|contains|content|create|copy|comparator|'
r'count|days|detail|domain|fcc|flags|from|handle|importance|is|'
r'localpart|length|lowerfirst|lower|matches|message|mime|options|'
r'over|percent|quotewildcard|raw|regex|specialuse|subject|text|'
r'under|upperfirst|upper|value)',
bygroups(Name.Tag, Name.Tag)),
# tokens:
(r'(?i)(address|addflag|allof|anyof|body|discard|elsif|else|envelope|'
r'ereject|exists|false|fileinto|if|hasflag|header|keep|'
r'notify_method_capability|notify|not|redirect|reject|removeflag|'
r'setflag|size|spamtest|stop|string|true|vacation|virustest)',
Name.Builtin),
(r'(?i)set',
Keyword.Declaration),
# number:
(r'([0-9.]+)([kmgKMG])?',
bygroups(Literal.Number, Literal.Number)),
# comment:
(r'#.*$',
Comment.Single),
(r'/\*.*\*/',
Comment.Multiline),
# string:
(r'"[^"]*?"',
String),
# text block:
(r'text:',
Name.Tag, 'text'),
],
'text': [
(r'[^.].*?\n', String),
(r'^\.', Punctuation, "#pop"),
]
}