/**
* Say or Synthesize text.
* @param inputText The text that shall be spoken
* @param suggestedFilename If not Null, synthesize only to this filename, otherwise
* synthesize and audibilize the text.
* @param userCmd The program that shall be executed for speaking
* @param stdIn True if the program shall recieve its data via standard input
* @param codec The QTextCodec if encoding==UseCodec
* @param language The language code (used for the %l macro)
*/
void CommandProc::synth(const QString& inputText, const QString& suggestedFilename,
const QString& userCmd, bool stdIn, QTextCodec *codec, QString& language)
{
if (m_commandProc)
{
if (m_commandProc->isRunning()) m_commandProc->kill();
delete m_commandProc;
m_commandProc = 0;
m_synthFilename = QString::null;
if (!m_textFilename.isNull()) QFile::remove(m_textFilename);
m_textFilename = QString::null;
}
QString command = userCmd;
QString text = inputText.stripWhiteSpace();
if (text.isEmpty()) return;
// 1. prepare the text:
// 1.a) encode the text
text += "\n";
QCString encodedText;
if (codec)
encodedText = codec->fromUnicode(text);
else
encodedText = text.latin1(); // Should not happen, but just in case.
// 1.b) quote the text as one parameter
QString escText = KShellProcess::quote(text);
// 1.c) create a temporary file for the text, if %f macro is used.
if (command.contains("%f"))
{
KTempFile tempFile(locateLocal("tmp", "commandplugin-"), ".txt");
QTextStream* fs = tempFile.textStream();
fs->setCodec(codec);
*fs << text;
*fs << endl;
m_textFilename = tempFile.file()->name();
tempFile.close();
} else m_textFilename = QString::null;
// 2. replace variables with values
QValueStack<bool> stack;
bool issinglequote=false;
bool isdoublequote=false;
int noreplace=0;
QRegExp re_noquote("(\"|'|\\\\|`|\\$\\(|\\$\\{|\\(|\\{|\\)|\\}|%%|%t|%f|%l|%w)");
QRegExp re_singlequote("('|%%|%t|%f|%l|%w)");
QRegExp re_doublequote("(\"|\\\\|`|\\$\\(|\\$\\{|%%|%t|%f|%l|%w)");
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))
)
{
if ((command[i]=='(') || (command[i]=='{')) // (...) or {...}
{
// assert(isdoublequote == false)
stack.push(isdoublequote);
if (noreplace > 0)
// count nested braces when within ${...}
noreplace++;
i++;
}
else if (command[i]=='$')
{
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 ${...}
{
QString match, v;
// get match
if (issinglequote)
match=re_singlequote.cap();
else if (isdoublequote)
match=re_doublequote.cap();
else
match=re_noquote.cap();
// substitue %variables
if (match=="%%")
v="%";
else if (match=="%t")
v=escText;
else if (match=="%f")
v=m_textFilename;
else if (match=="%l")
v=language;
else if (match=="%w")
v = suggestedFilename;
// %variable inside of a quote?
if (isdoublequote)
v='"'+v+'"';
else if (issinglequote)
v="'"+v+"'";
command.replace (i, match.length(), v);
i+=v.length();
}
else
{
if (issinglequote)
i+=re_singlequote.matchedLength();
else if (isdoublequote)
i+=re_doublequote.matchedLength();
else
i+=re_noquote.matchedLength();
}
}
// 3. create a new process
kdDebug() << "CommandProc::synth: running command: " << command << endl;
m_commandProc = new KProcess;
m_commandProc->setUseShell(true);
m_commandProc->setEnvironment("LANG", language + "." + codec->mimeName());
m_commandProc->setEnvironment("LC_CTYPE", language + "." + codec->mimeName());
*m_commandProc << command;
connect(m_commandProc, SIGNAL(processExited(KProcess*)),
this, SLOT(slotProcessExited(KProcess*)));
connect(m_commandProc, SIGNAL(receivedStdout(KProcess*, char*, int)),
this, SLOT(slotReceivedStdout(KProcess*, char*, int)));
connect(m_commandProc, SIGNAL(receivedStderr(KProcess*, char*, int)),
this, SLOT(slotReceivedStderr(KProcess*, char*, int)));
connect(m_commandProc, SIGNAL(wroteStdin(KProcess*)),
this, SLOT(slotWroteStdin(KProcess* )));
// 4. start the process
if (suggestedFilename.isNull())
m_state = psSaying;
else
{
m_synthFilename = suggestedFilename;
m_state = psSynthing;
}
if (stdIn) {
m_commandProc->start(KProcess::NotifyOnExit, KProcess::All);
if (encodedText.length() > 0)
m_commandProc->writeStdin(encodedText, encodedText.length());
else
m_commandProc->closeStdin();
}
else
m_commandProc->start(KProcess::NotifyOnExit, KProcess::AllOutput);
}
QString Speech::prepareCommand(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
}