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// qsamplerUtilities.cpp |
// qsamplerUtilities.cpp |
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// |
// |
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/**************************************************************************** |
/**************************************************************************** |
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Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved. |
Copyright (C) 2004-2017, rncbc aka Rui Nuno Capela. All rights reserved. |
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Copyright (C) 2007, Christian Schoenebeck |
Copyright (C) 2007, 2008 Christian Schoenebeck |
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This program is free software; you can redistribute it and/or |
This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
modify it under the terms of the GNU General Public License |
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#include "qsamplerUtilities.h" |
#include "qsamplerUtilities.h" |
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#include "qsamplerOptions.h" |
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#include "qsamplerMainForm.h" |
#include "qsamplerMainForm.h" |
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#include <stdio.h> |
#include <QRegExp> |
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#include <qregexp.h> |
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using namespace QSampler; |
using namespace QSampler; |
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namespace qsamplerUtilities { |
namespace qsamplerUtilities { |
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static int _hexToNumber(char hex_digit) { |
static int _hexToNumber ( char hex_digit ) |
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switch (hex_digit) { |
{ |
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case '0': return 0; |
switch (hex_digit) { |
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case '1': return 1; |
case '0': return 0; |
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case '2': return 2; |
case '1': return 1; |
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case '3': return 3; |
case '2': return 2; |
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case '4': return 4; |
case '3': return 3; |
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case '5': return 5; |
case '4': return 4; |
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case '6': return 6; |
case '5': return 5; |
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case '7': return 7; |
case '6': return 6; |
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case '8': return 8; |
case '7': return 7; |
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case '9': return 9; |
case '8': return 8; |
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case '9': return 9; |
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case 'a': return 10; |
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case 'b': return 11; |
case 'a': return 10; |
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case 'c': return 12; |
case 'b': return 11; |
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case 'd': return 13; |
case 'c': return 12; |
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case 'e': return 14; |
case 'd': return 13; |
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case 'f': return 15; |
case 'e': return 14; |
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case 'f': return 15; |
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case 'A': return 10; |
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case 'B': return 11; |
case 'A': return 10; |
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case 'C': return 12; |
case 'B': return 11; |
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case 'D': return 13; |
case 'C': return 12; |
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case 'E': return 14; |
case 'D': return 13; |
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case 'F': return 15; |
case 'E': return 14; |
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case 'F': return 15; |
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default: return 0; |
default: return 0; |
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} |
} |
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} |
} |
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static int _hexsToNumber(char hex_digit0, char hex_digit1) { |
static int _hexsToNumber ( char hex0, char hex1 ) |
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return _hexToNumber(hex_digit1)*16 + _hexToNumber(hex_digit0); |
{ |
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return _hexToNumber(hex1) * 16 + _hexToNumber(hex0); |
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} |
} |
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// returns true if the connected LSCP server supports escape sequences |
// returns true if the connected LSCP server supports escape sequences |
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static bool _remoteSupportsEscapeSequences() { |
static bool _remoteSupportsEscapeSequences (void) |
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const lscpVersion_t version = getRemoteLscpVersion(); |
{ |
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// LSCP v1.2 or younger required |
const lscpVersion_t version = getRemoteLscpVersion(); |
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return (version.major > 1 || (version.major == 1 && version.minor >= 2)); |
// LSCP v1.2 or younger required |
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return (version.major > 1 || (version.major == 1 && version.minor >= 2)); |
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} |
} |
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// converts the given file path into a path as expected by LSCP 1.2 |
// converts the given file path into a path as expected by LSCP 1.2 |
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QString lscpEscapePath ( const QString& sPath ) |
QString lscpEscapePath ( const QString& sPath ) |
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{ |
{ |
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if (!_remoteSupportsEscapeSequences()) return sPath; |
if (!_remoteSupportsEscapeSequences()) return sPath; |
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QString path(sPath); |
QString path(sPath); |
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// replace POSIX path escape sequences (%HH) by LSCP escape sequences (\xHH) |
// replace POSIX path escape sequences (%HH) by LSCP escape sequences (\xHH) |
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// TODO: missing code for other systems like Windows |
// TODO: missing code for other systems like Windows |
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{ |
{ |
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QRegExp regexp("%[0-9a-fA-F][0-9a-fA-F]"); |
QRegExp regexp("%[0-9a-fA-F][0-9a-fA-F]"); |
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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)) |
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path.replace(i, 1, "\\x"); |
path.replace(i, 1, "\\x"); |
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} |
} |
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// replace POSIX path escape sequence (%%) by its raw character |
// replace POSIX path escape sequence (%%) by its raw character |
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for (int i = path.find("%%"); i >= 0; i = path.find("%%", ++i)) |
for (int i = path.indexOf("%%"); i >= 0; i = path.indexOf("%%", ++i)) |
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path.remove(i, 1); |
path.remove(i, 1); |
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// replace all non-basic characters by LSCP escape sequences |
// replace all non-basic characters by LSCP escape sequences |
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{ |
{ |
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const char pathSeparator = '/'; |
const char pathSeparator = '/'; |
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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]"); |
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for (int i = 0; i < int(path.length()); i++) { |
for (int i = 0; i < int(path.length()); i++) { |
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// first skip all previously added LSCP escape sequences |
// first skip all previously added LSCP escape sequences |
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if (path.find(regexp, i) == i) { |
if (path.indexOf(regexp, i) == i) { |
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i += 3; |
i += 3; |
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continue; |
continue; |
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} |
} |
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// now match all non-alphanumerics |
// now match all non-alphanumerics |
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// (we could exclude much more characters here, but that way |
// (we could exclude much more characters here, but that way |
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// we're sure it just works^TM) |
// we're sure it just works^TM) |
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const char c = path.at(i).latin1(); |
const char c = path.at(i).toLatin1(); |
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if ( |
if ( |
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!(c >= '0' && c <= '9') && |
!(c >= '0' && c <= '9') && |
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!(c >= 'a' && c <= 'z') && |
!(c >= 'a' && c <= 'z') && |
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!(c >= 'A' && c <= 'Z') && |
!(c >= 'A' && c <= 'Z') && |
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#if defined(WIN32) |
#if defined(_WIN32) |
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!(c == ':') && |
!(c == ':') && |
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#endif |
#endif |
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!(c == pathSeparator) |
!(c == pathSeparator) |
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) { |
) { |
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// convert the non-basic character into a LSCP escape sequence |
// convert the non-basic character into a LSCP escape sequence |
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char buf[5]; |
char buf[5]; |
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::snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c)); |
::snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c)); |
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path.replace(i, 1, buf); |
path.replace(i, 1, buf); |
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i += 3; |
i += 3; |
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} |
} |
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} |
} |
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} |
} |
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return path; |
return path; |
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} |
} |
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// converts a path returned by a LSCP command (and may contain escape |
// converts a path returned by a LSCP command (and may contain escape |
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// sequences) into the appropriate POSIX path |
// sequences) into the appropriate POSIX path |
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QString lscpEscapedPathToPosix(QString path) { |
QString lscpEscapedPathToPosix ( const QString& sPath ) |
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if (!_remoteSupportsEscapeSequences()) return path; |
{ |
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if (!_remoteSupportsEscapeSequences()) return sPath; |
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QString path(sPath); |
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// first escape all percent ('%') characters for POSIX |
// first escape all percent ('%') characters for POSIX |
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for (int i = path.find('%'); i >= 0; i = path.find('%', i+2)) |
for (int i = path.indexOf('%'); i >= 0; i = path.indexOf('%', i+2)) |
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path.replace(i, 1, "%%"); |
path.replace(i, 1, "%%"); |
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// resolve LSCP hex escape sequences (\xHH) |
// resolve LSCP hex escape sequences (\xHH) |
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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]"); |
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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)) { |
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const QString sHex = path.mid(i+2, 2).lower(); |
const QString sHex = path.mid(i + 2, 2).toLower(); |
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// the slash has to be escaped for POSIX as well |
// the slash has to be escaped for POSIX as well |
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if (sHex == "2f") { |
if (sHex == "2f") { |
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path.replace(i, 4, "%2f"); |
path.replace(i, 4, "%2f"); |
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continue; |
continue; |
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} |
} |
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// all other characters we simply decode |
// all other characters we simply decode |
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char cAscii = _hexsToNumber(sHex.at(1).latin1(), sHex.at(0).latin1()); |
char cAscii = _hexsToNumber(sHex.at(1).toLatin1(), sHex.at(0).toLatin1()); |
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path.replace(i, 4, cAscii); |
path.replace(i, 4, cAscii); |
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} |
} |
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return path; |
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} |
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// converts the given text as expected by LSCP 1.2 |
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// (that is by encoding special characters with LSCP escape sequences) |
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QString lscpEscapeText ( const QString& sText ) |
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{ |
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if (!_remoteSupportsEscapeSequences()) return sText; |
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QString text(sText); |
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return path; |
// replace all non-basic characters by LSCP escape sequences |
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for (int i = 0; i < int(text.length()); ++i) { |
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// match all non-alphanumerics |
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// (we could exclude much more characters here, but that way |
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// we're sure it just works^TM) |
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const char c = text.at(i).toLatin1(); |
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if ( |
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!(c >= '0' && c <= '9') && |
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!(c >= 'a' && c <= 'z') && |
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!(c >= 'A' && c <= 'Z') |
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) { |
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// convert the non-basic character into a LSCP escape sequence |
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char buf[5]; |
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::snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c)); |
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text.replace(i, 1, buf); |
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i += 3; |
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} |
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} |
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return text; |
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} |
} |
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// converts a text returned by a LSCP command and may contain escape |
// converts a text returned by a LSCP command and may contain escape |
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// sequences) into raw text, that is with all escape sequences decoded |
// sequences) into raw text, that is with all escape sequences decoded |
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QString lscpEscapedTextToRaw(QString txt) { |
QString lscpEscapedTextToRaw ( const QString& sText ) |
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if (!_remoteSupportsEscapeSequences()) return txt; |
{ |
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if (!_remoteSupportsEscapeSequences()) return sText; |
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QString text(sText); |
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// resolve LSCP hex escape sequences (\xHH) |
// resolve LSCP hex escape sequences (\xHH) |
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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]"); |
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for (int i = txt.find(regexp); i >= 0; i = txt.find(regexp, i + 4)) { |
for (int i = text.indexOf(regexp); i >= 0; i = text.indexOf(regexp, i + 4)) { |
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const QString sHex = txt.mid(i+2, 2).lower(); |
const QString sHex = text.mid(i + 2, 2).toLower(); |
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// decode into raw ASCII character |
// decode into raw ASCII character |
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char cAscii = _hexsToNumber(sHex.at(1).latin1(), sHex.at(0).latin1()); |
char cAscii = _hexsToNumber(sHex.at(1).toLatin1(), sHex.at(0).toLatin1()); |
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txt.replace(i, 4, cAscii); |
text.replace(i, 4, cAscii); |
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} |
} |
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return txt; |
return text; |
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} |
} |
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lscpVersion_t getRemoteLscpVersion (void) |
lscpVersion_t getRemoteLscpVersion (void) |