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/***************************************************************************
* Copyright (C) 2002 by Gunnar Schmi Dt <kmouth@schmi-dt.de *
* (C) 2015 by Jeremy Whiting <jpwhiting@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "speech.h"
#include <QHash>
#include <QRegExp>
#include <QStack>
#include <QTextCodec>
#include <QTextStream>
#define macroExpander
#include <kmacroexpander.h>
Speech::Speech()
{
}
Speech::~Speech()
{
}
QString Speech::prepareCommand(const QString &command, const QString &text,
const QString &filename, const QString &language)
{
#ifdef macroExpander
QHash<QChar, QString> map;
map[QLatin1Char('t')] = text;
map[QLatin1Char('f')] = filename;
map[QLatin1Char('l')] = language;
return KMacroExpander::expandMacrosShellQuote(command, map);
#else
QStack<bool> stack; // saved isdoublequote values during parsing of braces
bool issinglequote = false; // inside '...' ?
bool isdoublequote = false; // inside "..." ?
int noreplace = 0; // nested braces when within ${...}
QString escText = K3ShellProcess::quote(text);
// character sequences that change the state or need to be otherwise processed
QRegExp re_singlequote("('|%%|%t|%f|%l)");
QRegExp re_doublequote("(\"|\\\\|`|\\$\\(|\\$\\{|%%|%t|%f|%l)");
QRegExp re_noquote("('|\"|\\\\|`|\\$\\(|\\$\\{|\\(|\\{|\\)|\\}|%%|%t|%f|%l)");
// parse the command:
for (int i = re_noquote.search(command);
i != -1;
i = (issinglequote ? re_singlequote.search(command, i)
: isdoublequote ? re_doublequote.search(command, i)
: re_noquote.search(command, i))
)
// while there are character sequences that need to be processed
{
if ((command[i] == '(') || (command[i] == '{')) { // (...) or {...}
// assert(isdoublequote == false)
stack.push(isdoublequote);
if (noreplace > 0)
// count nested braces when within ${...}
noreplace++;
i++;
} else if (command[i] == '$') { // $(...) or ${...}
stack.push(isdoublequote);
isdoublequote = false;
if ((noreplace > 0) || (command[i + 1] == '{'))
// count nested braces when within ${...}
noreplace++;
i += 2;
} else if ((command[i] == ')') || (command[i] == '}')) {
// $(...) or (...) or ${...} or {...}
if (!stack.isEmpty())
isdoublequote = stack.pop();
else
qWarning("Parse error.");
if (noreplace > 0)
// count nested braces when within ${...}
noreplace--;
i++;
} else if (command[i] == '\'') {
issinglequote = !issinglequote;
i++;
} else if (command[i] == '"') {
isdoublequote = !isdoublequote;
i++;
} else if (command[i] == '\\')
i += 2;
else if (command[i] == '`') {
// Replace all `...` with safer $(...)
command.replace(i, 1, "$(");
QRegExp re_backticks("(`|\\\\`|\\\\\\\\|\\\\\\$)");
for (int i2 = re_backticks.search(command, i + 2);
i2 != -1;
i2 = re_backticks.search(command, i2)
) {
if (command[i2] == '`') {
command.replace(i2, 1, ")");
i2 = command.length(); // leave loop
} else {
// remove backslash and ignore following character
command.remove(i2, 1);
i2++;
}
}
// Leave i unchanged! We need to process "$("
} else if (noreplace > 0) { // do not replace macros within ${...}
if (issinglequote)
i += re_singlequote.matchedLength();
else if (isdoublequote)
i += re_doublequote.matchedLength();
else
i += re_noquote.matchedLength();
} else { // replace macro
QString match, v;
// get match
if (issinglequote)
match = re_singlequote.cap();
else if (isdoublequote)
match = re_doublequote.cap();
else
match = re_noquote.cap();
// substitute %variables
if (match == "%t")
v = escText;
else if (match == "%f")
v = filename;
else if (match == "%%")
v = "%";
else if (match == "%l")
v = language;
// %variable inside of a quote?
if (isdoublequote)
v = '"' + v + '"';
else if (issinglequote)
v = '\'' + v + '\'';
command.replace(i, match.length(), v);
i += v.length();
}
}
return command;
#endif
}
void Speech::speak(QString command, bool stdIn, const QString &text, const QString &language, int encoding, QTextCodec *codec)
{
if (text.length() > 0) {
// 1. prepare the text:
// 1.a) encode the text
QTextStream ts(&encText, QIODevice::WriteOnly);
if (encoding == Local)
ts.setCodec(QTextCodec::codecForLocale());
else if (encoding == Latin1)
ts.setCodec("ISO-8859-1");
else if (encoding == Unicode)
ts.setCodec("UTF-16");
else
ts.setCodec(codec);
ts << text;
ts.flush();
// 1.b) create a temporary file for the text
tempFile.open();
QTextStream fs(&tempFile);
if (encoding == Local)
fs.setCodec(QTextCodec::codecForLocale());
else if (encoding == Latin1)
fs.setCodec("ISO-8859-1");
else if (encoding == Unicode)
fs.setCodec("UTF-16");
else
fs.setCodec(codec);
fs << text;
fs << "\n";
QString filename = tempFile.fileName();
tempFile.flush();
// 2. prepare the command:
command = prepareCommand(command, QLatin1String(encText), filename, language);
// 3. create a new process
connect(&m_process, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished), this, &Speech::processExited);
//connect(&process, SIGNAL(wroteStdin(K3Process*)), this, SLOT(wroteStdin(K3Process*)));
//connect(&process, SIGNAL(receivedStdout(K3Process*, char*, int)), this, SLOT(receivedStdout(K3Process*, char*, int)));
//connect(&process, SIGNAL(receivedStderr(K3Process*, char*, int)), this, SLOT(receivedStderr(K3Process*, char*, int)));
// 4. start the process
if (stdIn) {
m_process.start(command);
if (encText.size() > 0)
m_process.write(encText.constData(), encText.size());
else
m_process.close();
} else
m_process.start(command);
}
}
//void Speech::receivedStdout(K3Process *, char *buffer, int buflen)
//{
// kDebug() << QString::fromLatin1(buffer, buflen) + QLatin1Char('\n');
//}
//void Speech::receivedStderr(K3Process *, char *buffer, int buflen)
//{
// kDebug() << QString::fromLatin1(buffer, buflen) + QLatin1Char('\n');
//}
//void Speech::wroteStdin(K3Process *)
//{
// process.closeStdin();
//}
void Speech::processExited(int exitCode, QProcess::ExitStatus exitStatus)
{
delete this;
}
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