| """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 = "<[?].*?[?]>" |
| declaration = "<![A-Z]+\\s+[^>]*>" |
| 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) |
