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Match before and after a tag.

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This commit is contained in:
Bastian Kleineidam 2012-10-12 21:11:44 +02:00
parent 6fbf2e5cc8
commit 9c032c9006
1 changed files with 7 additions and 2 deletions
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9
dosagelib/util.py
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@ -23,7 +23,7 @@ has_curses = has_module("curses")
MAX_FILESIZE = 1024*1024*1 # 1MB
def tagre(tag, attribute, value, quote='"'):
def tagre(tag, attribute, value, quote='"', before="", after=""):
"""Return a regular expression matching the given HTML tag, attribute
and value. It matches the tag and attribute names case insensitive,
and skips arbitrary whitespace and leading HTML attributes. The "<>" at
@ -36,6 +36,9 @@ def tagre(tag, attribute, value, quote='"'):
@ptype value: string
@param quote: the attribute quote (default ")
@ptype quote: string
@param after: match after attribute value but before end
@ptype after: string
@return: the generated regular expression suitable for re.compile()
@rtype: string
"""
@ -44,8 +47,10 @@ def tagre(tag, attribute, value, quote='"'):
attribute=case_insensitive_re(attribute),
value=value,
quote=quote,
before=before,
after=after,
)
return r'<\s*%(tag)s\s+(?:[^>]*\s+)?%(attribute)s\s*=\s*%(quote)s%(value)s%(quote)s[^>]*>' % attrs
return r'<\s*%(tag)s\s+(?:[^>]*%(before)s[^>]*\s+)?%(attribute)s\s*=\s*%(quote)s%(value)s%(quote)s[^>]*%(after)s[^>]*>' % attrs
def case_insensitive_re(name):