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- """Regexps to match html elements"""
- import re
- attr_name = "[a-zA-Z_:][a-zA-Z0-9:._-]*"
- unquoted = "[^\"'=<>`\\x00-\\x20]+"
- single_quoted = "'[^']*'"
- double_quoted = '"[^"]*"'
- attr_value = "(?:" + unquoted + "|" + single_quoted + "|" + double_quoted + ")"
- attribute = "(?:\\s+" + attr_name + "(?:\\s*=\\s*" + attr_value + ")?)"
- open_tag = "<[A-Za-z][A-Za-z0-9\\-]*" + attribute + "*\\s*\\/?>"
- close_tag = "<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>"
- comment = "<!---?>|<!--(?:[^-]|-[^-]|--[^>])*-->"
- processing = "<[?][\\s\\S]*?[?]>"
- declaration = "<![A-Za-z][^>]*>"
- cdata = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>"
- HTML_TAG_RE = re.compile(
- "^(?:"
- + open_tag
- + "|"
- + close_tag
- + "|"
- + comment
- + "|"
- + processing
- + "|"
- + declaration
- + "|"
- + cdata
- + ")"
- )
- HTML_OPEN_CLOSE_TAG_STR = "^(?:" + open_tag + "|" + close_tag + ")"
- HTML_OPEN_CLOSE_TAG_RE = re.compile(HTML_OPEN_CLOSE_TAG_STR)
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