28 Text processing library [text] (original) (raw)

Table 118 — error_type values in the C locale [tab:re.err]

🔗Value	Error condition
🔗error_collate	The expression contains an invalid collating element name.
🔗error_ctype	The expression contains an invalid character class name.
🔗error_escape	The expression contains an invalid escaped character, or a trailing escape.
🔗error_backref	The expression contains an invalid back reference.
🔗error_brack	The expression contains mismatched [ and ].
🔗error_paren	The expression contains mismatched ( and ).
🔗error_brace	The expression contains mismatched { and }.
🔗error_badbrace	The expression contains an invalid range in a {} expression.
🔗error_range	The expression contains an invalid character range, such as[b-a] in most encodings.
🔗error_space	There is insufficient memory to convert the expression into a finite state machine.
🔗error_badrepeat	One of *?+{ is not preceded by a valid regular expression.
🔗error_complexity	The complexity of an attempted match against a regular expression exceeds a pre-set level.
🔗error_stack	There is insufficient memory to determine whether the regular expression matches the specified character sequence.