3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 template <typename T> class BasicStrfnd
26 typedef std::basic_string<T> String;
31 BasicStrfnd(const String &s) : str(s), pos(0) {}
32 void start(const String &s)
37 size_t where() { return pos; }
38 void to(size_t i) { pos = i; }
39 bool at_end() { return pos >= str.size(); }
40 String what() { return str; }
42 String next(const String &sep)
44 if (pos >= str.size())
48 if (sep.empty() || (n = str.find(sep, pos)) == String::npos) {
51 String ret = str.substr(pos, n - pos);
56 // Returns substr up to the next occurence of sep that isn't escaped with esc
58 String next_esc(const String &sep, T esc = static_cast<T>('\\'))
60 if (pos >= str.size())
63 size_t n, old_p = pos;
65 if (sep.empty() || (n = str.find(sep, pos)) == String::npos) {
69 pos = n + sep.length();
70 } while (n > 0 && str[n - 1] == esc);
72 return str.substr(old_p, n - old_p);
75 void skip_over(const String &chars)
77 size_t p = str.find_first_not_of(chars, pos);
78 if (p != String::npos)
83 typedef BasicStrfnd<char> Strfnd;
84 typedef BasicStrfnd<wchar_t> WStrfnd;