1 | /**********************************************************************
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2 | *
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3 | * IsisUtil.cpp
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4 | * Copyright (C) 2003 UNESCO
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 | #include "stdafx.h"
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27 | #include "IsisUtil.h"
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28 | #include <algorithm>
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29 |
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30 |
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31 | //---------------------------------------------------------------------------------
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32 | // bool RepFieldSep(TCHAR c)
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33 | //
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34 | // This function is a predicate that takes a TCHAR and returns a value that indicates
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35 | // if that TCHAR is a repeteable field separator.
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36 | //----------------------------------------------------------------------------------
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37 | bool RepFieldSep(char c)
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38 | {
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39 | return (c == SYSRSEP);
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40 | }
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41 |
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42 | //--------------------------------------------------------------------------------
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43 | // vector<string> SplitOccurences(const cstring& s)
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44 | //
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45 | // This function takes as input a string which contains a field and return a
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46 | // vector<string> which will contain an entry for each field occurence.
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47 | //--------------------------------------------------------------------------------
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48 | std::vector<cstring> SplitOccurences(const cstring& s)
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49 | {
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50 | typedef cstring::const_iterator iter;
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51 | std::vector<cstring> ret;
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52 |
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53 | iter i = s.begin();
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54 | //TRACE("\ni=%s",i);
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55 | while (i != s.end())
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56 | {
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57 | // find end of occurence
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58 | iter j = std::find_if(i,s.end(),RepFieldSep);
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59 |
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60 | // copy the characters in [i, j]
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61 | ret.push_back(cstring(i, j));
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62 | //TRACE("\ni=%s j=%s string(i,j)=%s", i, j, string(i,j).c_str());
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63 |
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64 | i = j;
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65 | if (j != s.end())
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66 | i++;
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67 | }
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68 | return ret;
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69 | }
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70 |
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71 |
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72 | bool WSubFieldSep(WCHAR c)
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73 | {
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74 | return (c == SUBFIELD_SEP);
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75 | }
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76 |
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77 | //--------------------------------------------------------------------------------
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78 | // vector<cstring> SplitSubfields(const cstring& s, TCHAR sc)
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79 | //
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80 | // This function takes as input a string which contains a field and return a
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81 | // vector<string> which will contain an entry for each subfield occurrence.
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82 | //--------------------------------------------------------------------------------
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83 | std::vector<cstring> SplitSubfields(const cstring& s, TCHAR sc/*=0*/)
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84 | {
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85 | typedef cstring::const_iterator iter;
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86 | std::vector<cstring> ret;
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87 |
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88 | iter i= s.begin();
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89 | iter j;
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90 | while (i < s.end())
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91 | {
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92 | // Look for subfield separator (^)
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93 | iter k = std::find_if(i ,s.end(),WSubFieldSep);
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94 | if (k == s.end())
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95 | {
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96 | j = s.end(); // separator not found
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97 | }
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98 | else
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99 | {
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100 | // Special case when field is terminated by "^x" or "^"
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101 | if (k==s.end()-1 || k==s.end()-2)
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102 | break;
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103 | i = k + 2; // separator found, skip next char
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104 | assert(i<s.end());
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105 | j = std::find_if(i ,s.end() ,WSubFieldSep);
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106 | }
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107 | ret.push_back(cstring(i, j));
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108 | i = j;
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109 | }
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110 | return ret;
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111 | }
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112 |
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113 |
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114 | //--------------------------------------------------------------------------------
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115 | // vector<string> SplitOccurences(const awstring& s)
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116 | //
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117 | // This function takes as input a string which contains a field and return a
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118 | // vector<string> which will contain an entry for each field occurence.
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119 | //--------------------------------------------------------------------------------
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120 | // std::vector<awstring> SplitOccurences(const awstring& s)
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121 | // {
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122 | // typedef awstring::const_iterator iter;
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123 | // std::vector<awstring> ret;
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124 |
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125 | // iter i = s.begin();
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126 | // //TRACE("\ni=%s",i);
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127 | // while (i != s.end())
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128 | // {
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129 | // // find end of occurence
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130 | // iter j = std::find_if(i,s.end(),RepFieldSep);
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131 |
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132 | // // copy the characters in [i, j]
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133 | // ret.push_back(awstring(i, j));
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134 | // //TRACE("\ni=%s j=%s string(i,j)=%s", i, j, string(i,j).c_str());
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135 |
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136 | // i = j;
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137 | // if (j != s.end())
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138 | // i++;
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139 | // }
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140 | // return ret;
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141 | // }
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142 |
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143 |
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144 | bool SubFieldSep(TCHAR c)
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145 | {
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146 | return (c == SUBFIELD_SEP);
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147 | }
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148 |
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149 | //--------------------------------------------------------------------------------
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150 | // vector<awstring> SplitSubfields(const awstring& s, TCHAR sc)
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151 | //
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152 | // This function takes as input a string which contains a field and return a
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153 | // vector<string> which will contain an entry for each subfield occurrence.
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154 | //--------------------------------------------------------------------------------
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155 | // std::vector<awstring> SplitSubfields(const awstring& s, TCHAR sc/*=0*/)
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156 | // {
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157 | // typedef awstring::const_iterator iter;
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158 | // std::vector<awstring> ret;
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159 |
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160 | // iter i = s.begin();
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161 | // //TRACE("\ni=%s",i);
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162 | // bool found=false;
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163 | // while (i != s.end())
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164 | // {
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165 | // // find index of subfield separator (^)
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166 | // iter j = std::find_if(i,s.end(),SubFieldSep);
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167 | // if (found && j<s.end()-1)
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168 | // {
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169 | // // copy the characters in [i, j]
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170 | // ret.push_back(awstring(i+1, j));
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171 | // }
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172 | // if (sc==0 || s.at(j-s.begin()+1)==sc)
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173 | // found = true;
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174 | // else
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175 | // found = false;
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176 |
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177 |
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178 | // i = j+1;
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179 | // if (j != s.end())
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180 | // i++;
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181 | // }
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182 | // return ret;
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183 | // }
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