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+/*
+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
+