/// operation, rather than as two operations (an insertion and a
/// removal).
///
+ /// \param MaxEditDistance If non-zero, the maximum edit distance that
+ /// this routine is allowed to compute. If the edit distance will exceed
+ /// that maximum, returns \c MaxEditDistance+1.
+ ///
/// \returns the minimum number of character insertions, removals,
/// or (if \p AllowReplacements is \c true) replacements needed to
/// transform one of the given strings into the other. If zero,
/// the strings are identical.
- unsigned edit_distance(StringRef Other, bool AllowReplacements = true);
+ unsigned edit_distance(StringRef Other, bool AllowReplacements = true,
+ unsigned MaxEditDistance = 0);
/// str - Get the contents as an std::string.
std::string str() const {
- if (Data == 0) return "";
+ if (Data == 0) return std::string();
return std::string(Data, Length);
}
/// find_first_of - Find the first character in the string that is \arg C,
/// or npos if not found. Same as find.
- size_type find_first_of(char C, size_t = 0) const { return find(C); }
+ size_type find_first_of(char C, size_t From = 0) const {
+ return find(C, From);
+ }
/// find_first_of - Find the first character in the string that is in \arg
/// Chars, or npos if not found.
///
- /// Note: O(size() * Chars.size())
+ /// Note: O(size() + Chars.size())
size_type find_first_of(StringRef Chars, size_t From = 0) const;
/// find_first_not_of - Find the first character in the string that is not
/// find_first_not_of - Find the first character in the string that is not
/// in the string \arg Chars, or npos if not found.
///
- /// Note: O(size() * Chars.size())
+ /// Note: O(size() + Chars.size())
size_type find_first_not_of(StringRef Chars, size_t From = 0) const;
/// @}