【www.bbyears.com--python】
例子
代码如下## Remove xml style tags from an input string.
#
# @param string The input string.
# @param allowed_tags A string to specify tags which should not be removed.
def strip_tags(string, allowed_tags=""):
if allowed_tags != "":
# Get a list of all allowed tag names.
allowed_tags_list = re.sub(r"[＼＼/<> ]+", "", allowed_tags).split(",")
allowed_pattern = ""
for s in allowed_tags_list:
if s == "":
continue;
# Add all possible patterns for this tag to the regex.
if allowed_pattern != "":
allowed_pattern += "|"
allowed_pattern += "<" + s + " [^><]*>$|<" + s + ">|"
# Get all tags included in the string.
all_tags = re.findall(r"<]+>", string, re.I)
for tag in all_tags:
# If not allowed, replace it.
if not re.match(allowed_pattern, tag, re.I):
string = string.replace(tag, "")
else:
# If no allowed tags, remove all.
string = re.sub(r"<[^>]*?>", "", string)
return string
测试
>>> strip_tags("Hello World!
")
"Hello World! "
>>> strip_tags("Hello World!
", "")
"Hello World!"
>>> strip_tags("Hello World!
", ",
")
"Hello World!
"
>>>