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annotate liboctave/caseless-str.h @ 14280:fd8b8f0f68b9

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Include <cctype> in caseless-str.h * liboctave/caseless-str.h: include <cctype>.
author Michael Goffioul <michael.goffioul@gmail.com>
date Sun, 29 Jan 2012 12:52:54 +0000
parents 72c96de7a403
children
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1 /*
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2
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3 Copyright (C) 2007-2012 Shai Ayal
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_caseless_str_h)
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24 #define octave_caseless_str_h 1
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25
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26 #include <cctype>
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27 #include <string>
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28
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29 class caseless_str : public std::string
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30 {
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31 public:
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32
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33 typedef std::string::iterator iterator;
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34 typedef std::string::const_iterator const_iterator;
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35
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36 caseless_str (void) : std::string () { }
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37 caseless_str (const std::string& s) : std::string (s) { }
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38 caseless_str (const char *s) : std::string (s) { }
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39
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40 caseless_str (const caseless_str& name) : std::string (name) { }
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41
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42 caseless_str& operator = (const caseless_str& pname)
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43 {
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44 std::string::operator = (pname);
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45 return *this;
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46 }
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47
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48 operator std::string (void) const { return *this; }
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49
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50 bool operator < (const std::string& s) const
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51 {
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52 const_iterator p1 = begin ();
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53 const_iterator p2 = s.begin ();
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54
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55 while (p1 != end () && p2 != s.end ())
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56 {
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57 char lp1 = std::tolower (*p1), lp2 = std::tolower (*p2);
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58
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59 if ( lp1 > lp2 )
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60 return false;
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61 if ( lp1 < lp2)
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62 return true;
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63
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64 p1++;
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65 p2++;
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66 }
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67
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68 if ( length () >= s.length ())
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69 return false;
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70 else
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71 return true;
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72 }
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73
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74 // Case-insensitive comparison.
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75 bool compare (const std::string& s, size_t limit = std::string::npos) const
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76 {
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77 const_iterator p1 = begin ();
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78 const_iterator p2 = s.begin ();
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79
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80 size_t k = 0;
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81
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82 while (p1 != end () && p2 != s.end () && k++ < limit)
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83 {
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84 if (std::tolower (*p1) != std::tolower (*p2))
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85 return false;
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86
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87 p1++;
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88 p2++;
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89 }
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90
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91 return (limit == std::string::npos) ? size () == s.size () : k == limit;
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92 }
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93 };
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94
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95 #endif