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Add wcstringutil.h truncate function

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Mahmoud Al-Qudsi
2018-03-09 14:52:12 -06:00
parent 1fbf810946
commit a991fd5a1a
2 changed files with 27 additions and 0 deletions
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16
src/wcstringutil.cpp
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@@ -29,3 +29,19 @@ wcstring_range wcstring_tok(wcstring& str, const wcstring& needle, wcstring_rang
str[next_pos] = L'\0';
return std::make_pair(pos, next_pos - pos);
}
wcstring truncate(const wcstring &input, int max_len, ellipsis_type etype) {
if (input.size() <= max_len) {
return input;
}
if (etype == ellipsis_type::None) {
return input.substr(0, max_len);
}
if (etype == ellipsis_type::Prettiest) {
return input.substr(0, max_len - wcslen(ellipsis_str)).append(ellipsis_str);
}
wcstring output = input.substr(0, max_len - 1);
output.push_back(ellipsis_char);
return output;
}