Tools.h++ Class Reference

Public Member Functions
size_t
index(const RWCString& str, size_t* len = NULL,
size_t start=0) const;
Returns the index of the first instance in the string str that matches the regular expression
compiled in self, or RW_NPOS if there is no such match. The search starts at index start. The
length of the matching pattern is returned in the variable pointed to by len. If an invalid
regular expression is used for the search, an exception of type RWInternalErr will be thrown.
Note that this member function is relatively clumsy to use -- class RWCString offers a better
interface to regular expression searches.
statusType
status() const;
Returns the status of the regular expression:
statusType Meaning
RWCRExpr::OK No errors
RWCRExpr::NOT_SUPPORTED POSIX.2 feature not yet supported.
RWCRExpr::NO_MATCH Tried to find a match but failed
RWCRExpr::BAD_PATTERN Pattern was illegal
RWCRExpr::BAD_COLLATING_ELEMENT Invalid collating element referenced
RWCRExpr::BAD_CHAR_CLASS_TYPE Invalid character class type referenced
RWCRExpr::TRAILING_BACKSLASH Trailing \ in pattern
RWCRExpr::UNMATCHED_BRACKET [] imbalance
RWCRExpr::UNMATCHED_PARENTHESIS () imbalance
RWCRExpr::UNMATCHED_BRACE {} imbalance
RWCRExpr::BAD_BRACE Content of {} invalid.
RWCRExpr::BAD_CHAR_RANGE Invalid endpoint in [a-z] expression
RWCRExpr::OUT_OF_MEMORY Out of memory
RWCRExpr::BAD_REPEAT ?,* or + not preceded by valid regular
expression