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Diffstat (limited to 'src/util/string.h')
-rw-r--r-- | src/util/string.h | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/src/util/string.h b/src/util/string.h new file mode 100644 index 000000000..97b07f2ff --- /dev/null +++ b/src/util/string.h @@ -0,0 +1,264 @@ +/* +Minetest-c55 +Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#ifndef UTIL_STRING_HEADER +#define UTIL_STRING_HEADER + +#include "../irrlichttypes.h" +#include "../strfnd.h" // For trim() +#include "pointer.h" +#include <string> +#include <cstring> +#include <vector> +#include <sstream> + +static inline std::string padStringRight(std::string s, size_t len) +{ + if(len > s.size()) + s.insert(s.end(), len - s.size(), ' '); + return s; +} + +// ends: NULL- or ""-terminated array of strings +// Returns "" if no end could be removed. +static inline std::string removeStringEnd(const std::string &s, const char *ends[]) +{ + const char **p = ends; + for(; (*p) && (*p)[0] != '\0'; p++){ + std::string end = *p; + if(s.size() < end.size()) + continue; + if(s.substr(s.size()-end.size(), end.size()) == end) + return s.substr(0, s.size() - end.size()); + } + return ""; +} + +// Tests if two strings are equal, optionally case insensitive +inline bool str_equal(const std::wstring& s1, const std::wstring& s2, + bool case_insensitive = false) +{ + if(case_insensitive) + { + if(s1.size() != s2.size()) + return false; + for(size_t i = 0; i < s1.size(); ++i) + if(tolower(s1[i]) != tolower(s2[i])) + return false; + return true; + } + else + { + return s1 == s2; + } +} + +// Tests if the second string is a prefix of the first, optionally case insensitive +inline bool str_starts_with(const std::wstring& str, const std::wstring& prefix, + bool case_insensitive = false) +{ + if(str.size() < prefix.size()) + return false; + if(case_insensitive) + { + for(size_t i = 0; i < prefix.size(); ++i) + if(tolower(str[i]) != tolower(prefix[i])) + return false; + } + else + { + for(size_t i = 0; i < prefix.size(); ++i) + if(str[i] != prefix[i]) + return false; + } + return true; +} + +inline std::wstring narrow_to_wide(const std::string& mbs) +{ + size_t wcl = mbs.size(); + Buffer<wchar_t> wcs(wcl+1); + size_t l = mbstowcs(*wcs, mbs.c_str(), wcl); + if(l == (size_t)(-1)) + return L"<invalid multibyte string>"; + wcs[l] = 0; + return *wcs; +} + +inline std::string wide_to_narrow(const std::wstring& wcs) +{ + size_t mbl = wcs.size()*4; + SharedBuffer<char> mbs(mbl+1); + size_t l = wcstombs(*mbs, wcs.c_str(), mbl); + if(l == (size_t)(-1)) + mbs[0] = 0; + else + mbs[l] = 0; + return *mbs; +} + +// Split a string using the given delimiter. Returns a vector containing +// the component parts. +inline std::vector<std::wstring> str_split(const std::wstring &str, wchar_t delimiter) +{ + std::vector<std::wstring> parts; + std::wstringstream sstr(str); + std::wstring part; + while(std::getline(sstr, part, delimiter)) + parts.push_back(part); + return parts; +} + +inline std::string lowercase(const std::string &s) +{ + std::string s2; + for(size_t i=0; i<s.size(); i++) + { + char c = s[i]; + if(c >= 'A' && c <= 'Z') + c -= 'A' - 'a'; + s2 += c; + } + return s2; +} + +inline bool is_yes(const std::string &s) +{ + std::string s2 = lowercase(trim(s)); + if(s2 == "y" || s2 == "yes" || s2 == "true" || s2 == "1") + return true; + return false; +} + +inline s32 mystoi(const std::string &s, s32 min, s32 max) +{ + s32 i = atoi(s.c_str()); + if(i < min) + i = min; + if(i > max) + i = max; + return i; +} + + +// MSVC2010 includes it's own versions of these +//#if !defined(_MSC_VER) || _MSC_VER < 1600 + +inline s32 mystoi(const std::string &s) +{ + return atoi(s.c_str()); +} + +inline s32 mystoi(const std::wstring &s) +{ + return atoi(wide_to_narrow(s).c_str()); +} + +inline float mystof(const std::string &s) +{ + // This crap causes a segfault in certain cases on MinGW + /*float f; + std::istringstream ss(s); + ss>>f; + return f;*/ + // This works in that case + return atof(s.c_str()); +} + +//#endif + +#define stoi mystoi +#define stof mystof + +inline std::string itos(s32 i) +{ + std::ostringstream o; + o<<i; + return o.str(); +} + +inline std::string ftos(float f) +{ + std::ostringstream o; + o<<f; + return o.str(); +} + +inline void str_replace(std::string & str, std::string const & pattern, + std::string const & replacement) +{ + std::string::size_type start = str.find(pattern, 0); + while(start != str.npos) + { + str.replace(start, pattern.size(), replacement); + start = str.find(pattern, start+replacement.size()); + } +} + +inline void str_replace_char(std::string & str, char from, char to) +{ + for(unsigned int i=0; i<str.size(); i++) + { + if(str[i] == from) + str[i] = to; + } +} + +/* + Checks if a string contains only supplied characters +*/ +inline bool string_allowed(const std::string &s, const std::string &allowed_chars) +{ + for(u32 i=0; i<s.size(); i++) + { + bool confirmed = false; + for(u32 j=0; j<allowed_chars.size(); j++) + { + if(s[i] == allowed_chars[j]) + { + confirmed = true; + break; + } + } + if(confirmed == false) + return false; + } + return true; +} + +/* + Forcefully wraps string into rows using \n + (no word wrap, used for showing paths in gui) +*/ +inline std::string wrap_rows(const std::string &from, u32 rowlen) +{ + std::string to; + for(u32 i=0; i<from.size(); i++) + { + if(i != 0 && i%rowlen == 0) + to += '\n'; + to += from[i]; + } + return to; +} + +std::string translatePassword(std::string playername, std::wstring password); + +#endif + |