diff options
Diffstat (limited to 'src/core/common/Utils.hpp')
| -rw-r--r-- | src/core/common/Utils.hpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/core/common/Utils.hpp b/src/core/common/Utils.hpp index 16a9136..8361973 100644 --- a/src/core/common/Utils.hpp +++ b/src/core/common/Utils.hpp @@ -120,8 +120,25 @@ public: template <class T, class Filter> static std::pair<size_t, size_t> trim(const T &s, Filter f) { + return trim(s, s.size(), f); + } + + /** + * Trims the given string or vector of chars by returning the start and end + * index. + * + * @param s is the container that should be trimmed. + * @param len is the number of elements in the container. + * @param f is a function that returns true for values that should be + * removed. + * @return start and end index. Note that "end" points at the character + * beyond the end, thus "end" minus "start" + */ + template <class T, class Filter> + static std::pair<size_t, size_t> trim(const T &s, size_t len, Filter f) + { size_t start = 0; - for (size_t i = 0; i < s.size(); i++) { + for (size_t i = 0; i < len; i++) { if (!f(s[i])) { start = i; break; @@ -129,7 +146,7 @@ public: } size_t end = 0; - for (ssize_t i = s.size() - 1; i >= static_cast<ssize_t>(start); i--) { + for (ssize_t i = len - 1; i >= static_cast<ssize_t>(start); i--) { if (!f(s[i])) { end = i + 1; break; |