/[svn]/qsampler/trunk/src/qsamplerUtilities.cpp
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revision 1476 by senoner, Sun Nov 11 23:07:06 2007 UTC revision 1667 by schoenebeck, Mon Feb 4 23:24:19 2008 UTC
# Line 2  Line 2 
2  //  //
3  /****************************************************************************  /****************************************************************************
4     Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.     Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
5     Copyright (C) 2007, Christian Schoenebeck     Copyright (C) 2007, 2008 Christian Schoenebeck
6    
7     This program is free software; you can redistribute it and/or     This program is free software; you can redistribute it and/or
8     modify it under the terms of the GNU General Public License     modify it under the terms of the GNU General Public License
# Line 22  Line 22 
22    
23  #include "qsamplerUtilities.h"  #include "qsamplerUtilities.h"
24    
25    #include "qsamplerOptions.h"
26  #include "qsamplerMainForm.h"  #include "qsamplerMainForm.h"
27    
28  #include <stdio.h>  #include <QRegExp>
29  #include <qregexp.h>  
30    
31  using namespace QSampler;  using namespace QSampler;
32    
# Line 84  QString lscpEscapePath ( const QString& Line 85  QString lscpEscapePath ( const QString&
85      // TODO: missing code for other systems like Windows      // TODO: missing code for other systems like Windows
86      {      {
87          QRegExp regexp("%[0-9a-fA-F][0-9a-fA-F]");          QRegExp regexp("%[0-9a-fA-F][0-9a-fA-F]");
88          for (int i = path.find(regexp); i >= 0; i = path.find(regexp, i + 4))          for (int i = path.indexOf(regexp); i >= 0; i = path.indexOf(regexp, i + 4))
89              path.replace(i, 1, "\\x");              path.replace(i, 1, "\\x");
90      }      }
91      // replace POSIX path escape sequence (%%) by its raw character      // replace POSIX path escape sequence (%%) by its raw character
92      for (int i = path.find("%%"); i >= 0; i = path.find("%%", ++i))      for (int i = path.indexOf("%%"); i >= 0; i = path.indexOf("%%", ++i))
93          path.remove(i, 1);          path.remove(i, 1);
94    
95      // replace all non-basic characters by LSCP escape sequences      // replace all non-basic characters by LSCP escape sequences
# Line 97  QString lscpEscapePath ( const QString& Line 98  QString lscpEscapePath ( const QString&
98          QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");          QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");
99          for (int i = 0; i < int(path.length()); i++) {          for (int i = 0; i < int(path.length()); i++) {
100              // first skip all previously added LSCP escape sequences              // first skip all previously added LSCP escape sequences
101              if (path.find(regexp, i) == i) {              if (path.indexOf(regexp, i) == i) {
102                  i += 3;                  i += 3;
103                  continue;                  continue;
104              }              }
105              // now match all non-alphanumerics              // now match all non-alphanumerics
106              // (we could exclude much more characters here, but that way              // (we could exclude much more characters here, but that way
107              // we're sure it just works^TM)              // we're sure it just works^TM)
108              const char c = path.at(i).latin1();              const char c = path.at(i).toLatin1();
109              if (              if (
110                  !(c >= '0' && c <= '9') &&                  !(c >= '0' && c <= '9') &&
111                  !(c >= 'a' && c <= 'z') &&                  !(c >= 'a' && c <= 'z') &&
# Line 132  QString lscpEscapedPathToPosix(QString p Line 133  QString lscpEscapedPathToPosix(QString p
133      if (!_remoteSupportsEscapeSequences()) return path;      if (!_remoteSupportsEscapeSequences()) return path;
134    
135      // first escape all percent ('%') characters for POSIX      // first escape all percent ('%') characters for POSIX
136      for (int i = path.find('%'); i >= 0; i = path.find('%', i+2))      for (int i = path.indexOf('%'); i >= 0; i = path.indexOf('%', i+2))
137          path.replace(i, 1, "%%");          path.replace(i, 1, "%%");
138    
139      // resolve LSCP hex escape sequences (\xHH)      // resolve LSCP hex escape sequences (\xHH)
140      QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");      QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");
141      for (int i = path.find(regexp); i >= 0; i = path.find(regexp, i + 4)) {      for (int i = path.indexOf(regexp); i >= 0; i = path.indexOf(regexp, i + 4)) {
142          const QString sHex = path.mid(i+2, 2).lower();          const QString sHex = path.mid(i+2, 2).toLower();
143          // the slash has to be escaped for POSIX as well          // the slash has to be escaped for POSIX as well
144          if (sHex == "2f") {          if (sHex == "2f") {
145              path.replace(i, 4, "%2f");              path.replace(i, 4, "%2f");
146              continue;              continue;
147          }          }
148          // all other characters we simply decode          // all other characters we simply decode
149          char cAscii = _hexsToNumber(sHex.at(1).latin1(), sHex.at(0).latin1());          char cAscii = _hexsToNumber(sHex.at(1).toLatin1(), sHex.at(0).toLatin1());
150          path.replace(i, 4, cAscii);          path.replace(i, 4, cAscii);
151      }      }
152    
153      return path;      return path;
154  }  }
155    
156    // converts the given text as expected by LSCP 1.2
157    // (that is by encoding special characters with LSCP escape sequences)
158    QString lscpEscapeText(const QString& txt) {
159        if (!_remoteSupportsEscapeSequences()) return txt;
160    
161        QString text(txt);
162    
163        // replace all non-basic characters by LSCP escape sequences
164        for (int i = 0; i < int(text.length()); ++i) {
165            // match all non-alphanumerics
166            // (we could exclude much more characters here, but that way
167            // we're sure it just works^TM)
168            const char c = text.at(i).toLatin1();
169            if (
170                !(c >= '0' && c <= '9') &&
171                !(c >= 'a' && c <= 'z') &&
172                !(c >= 'A' && c <= 'Z')
173            ) {
174                // convert the non-basic character into a LSCP escape sequence
175                char buf[5];
176                ::snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c));
177                text.replace(i, 1, buf);
178                i += 3;
179            }
180        }
181    
182        return text;
183    }
184    
185  // converts a text returned by a LSCP command and may contain escape  // converts a text returned by a LSCP command and may contain escape
186  // sequences) into raw text, that is with all escape sequences decoded  // sequences) into raw text, that is with all escape sequences decoded
187  QString lscpEscapedTextToRaw(QString txt) {  QString lscpEscapedTextToRaw(QString txt) {
# Line 159  QString lscpEscapedTextToRaw(QString txt Line 189  QString lscpEscapedTextToRaw(QString txt
189    
190      // resolve LSCP hex escape sequences (\xHH)      // resolve LSCP hex escape sequences (\xHH)
191      QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");      QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");
192      for (int i = txt.find(regexp); i >= 0; i = txt.find(regexp, i + 4)) {      for (int i = txt.indexOf(regexp); i >= 0; i = txt.indexOf(regexp, i + 4)) {
193          const QString sHex = txt.mid(i+2, 2).lower();          const QString sHex = txt.mid(i+2, 2).toLower();
194          // decode into raw ASCII character          // decode into raw ASCII character
195          char cAscii = _hexsToNumber(sHex.at(1).latin1(), sHex.at(0).latin1());          char cAscii = _hexsToNumber(sHex.at(1).toLatin1(), sHex.at(0).toLatin1());
196          txt.replace(i, 4, cAscii);          txt.replace(i, 4, cAscii);
197      }      }
198    
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