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00042 #include "pcre++.h"
00043
00044 using namespace std;
00045 using namespace pcrepp;
00046
00047
00048
00049
00050
00051 string Pcre::replace(const string& piece, const string& with) {
00052
00053
00054
00055 string Replaced(piece);
00056
00057 bool bReplaced = false;
00058 int iReplaced = -1;
00059
00060 __pcredebug << "replace: " << piece << " with: " << with << endl;
00061
00062
00063
00064
00065
00066
00067
00068
00069
00070
00071
00072 pcre_free(p_pcre);
00073 pcre_free(p_pcre_extra);
00074
00075 pcre *_p = NULL;
00076 pcre_extra *_e = NULL;;
00077
00078 p_pcre = _p;
00079 p_pcre_extra = _e;
00080
00081 _expression = "(" + _expression + ")";
00082 Compile(_flags);
00083
00084 if(search(piece)) {
00085
00086
00087
00088
00089 string use_with;
00090
00091
00092 if(!global_t) {
00093
00094 use_with = _replace_vars(with);
00095
00096 if(matched() && matches() >= 1) {
00097 __pcredebug << "matches: " << matches() << endl;
00098 int len = get_match_end() - get_match_start() + 1;
00099 Replaced.replace(get_match_start(0), len, use_with);
00100 bReplaced = true;
00101 iReplaced = 0;
00102 }
00103 }
00104 else {
00105
00106
00107
00108
00109 int match_pos = 0;
00110 while( search( Replaced, match_pos ) ) {
00111 int len = 0;
00112
00113
00114
00115 use_with = _replace_vars(with);
00116
00117 len = get_match_end() - get_match_start() + 1;
00118 Replaced.replace(get_match_start(0), len, use_with);
00119
00120
00121 match_pos = ( use_with.length() - len ) + get_match_end() + 1;
00122
00123 bReplaced = true;
00124 ++iReplaced;
00125 }
00126 }
00127 }
00128
00129 did_match = bReplaced;
00130 num_matches = iReplaced;
00131
00132 return Replaced;
00133 }
00134
00135
00136
00137
00138
00139 string Pcre::_replace_vars(const string& piece) {
00140
00141
00142
00143 string with = piece;
00144 Pcre dollar("\\$([0-9]+)");
00145
00146 while ( dollar.search( with ) ) {
00147
00148 __pcredebug << "Pcre::dollar matched: " << piece << ". Match(0): " << dollar.get_match(0) << endl;
00149 int iBracketIndex = atoi( dollar.get_match(0).data() );
00150 string sBracketContent = get_match(iBracketIndex);
00151
00152
00153 string sSubSplit = "\\$" + dollar.get_match(0);
00154 Pcre subsplit(sSubSplit);
00155
00156
00157 vector<string> splitted = subsplit.split(with);
00158 string Replaced;
00159
00160 for(size_t pos=0; pos < splitted.size(); pos++) {
00161 if( pos == ( splitted.size() - 1 ) )
00162 Replaced += splitted[pos];
00163 else
00164 Replaced += splitted[pos] + sBracketContent;
00165 }
00166 with = Replaced;
00167 }
00168 return with;
00169 }