diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/SString.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/SString.h b/include/SString.h index d33d4c4fa..58f178b5b 100644 --- a/include/SString.h +++ b/include/SString.h @@ -92,6 +92,7 @@ public: sSize = sLen = (s) ? strlen(s) : 0; } SString(const char *s_, lenpos_t first, lenpos_t last) : sizeGrowth(sizeGrowthDefault) { + // note: expects the "last" argument to point one beyond the range end (a la STL iterators) s = StringAllocate(s_ + first, last - first); sSize = sLen = (s) ? strlen(s) : 0; } @@ -188,6 +189,27 @@ public: else return '\0'; } + SString substr(lenpos_t subPos, lenpos_t subLen=measure_length) const { + if (subPos >= sLen) { + return SString(); // return a null string if start index is out of bounds + } + if ((subLen == measure_length) || (subPos + subLen > sLen)) { + subLen = sLen - subPos; // can't substr past end of source string + } + return SString(s, subPos, subPos + subLen); + } + SString &lowercase(lenpos_t subPos = 0, lenpos_t subLen=measure_length) { + if ((subLen == measure_length) || (subPos + subLen > sLen)) { + subLen = sLen - subPos; // don't apply past end of string + } + for (unsigned int i = subPos; i < subPos + subLen; i++) { + if (s[i] < 'A' || s[i] > 'Z') + continue; + else + s[i] = static_cast<char>(s[i] - 'A' + 'a'); + } + return *this; + } SString &append(const char *sOther, lenpos_t sLenOther=measure_length, char sep = '\0') { if (!sOther) { return *this; |