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/***************************************************************************
speech.cpp - description
-------------------
begin : Son Sep 8 2002
copyright : (C) 2002 by Gunnar Schmi Dt
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "speech.h"
#include <tqstring.h>
#include <tqvaluelist.h>
#include <tqvaluestack.h>
#include <tqstringlist.h>
#include <tqregexp.h>
#include <tqtextcodec.h>
#include <tqfile.h>
#include <kdebug.h>
#include <kdeversion.h>
#ifdef KDE_IS_VERSION
#if KDE_IS_VERSION(3,2,0)
#define macroExpander
#include <kmacroexpander.h>
#endif
#endif
Speech::Speech() {
}
Speech::~Speech() {
}
TQString Speech::prepareCommand (TQString command, const TQString &text,
const TQString &filename, const TQString &language) {
#ifdef macroExpander
TQMap<TQChar,TQString> map;
map['t'] = text;
map['f'] = filename;
map['l'] = language;
return KMacroExpander::expandMacrosShellQuote (command, map);
#else
TQValueStack<bool> stack; // saved isdoublequote values during parsing of braces
bool issinglequote=false; // inside '...' ?
bool isdoublequote=false; // inside "..." ?
int noreplace=0; // nested braces when within ${...}
TQString escText = KShellProcess::quote(text);
// character sequences that change the state or need to be otherwise processed
TQRegExp re_singlequote("('|%%|%t|%f|%l)");
TQRegExp re_doublequote("(\"|\\\\|`|\\$\\(|\\$\\{|%%|%t|%f|%l)");
TQRegExp 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 $(...)
command.replace (i, 1, "$(");
TQRegExp 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
TQString 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(TQString command, bool stdIn, const TQString &text, const TQString &language, int encoding, TQTextCodec *codec) {
if (text.length () > 0) {
// 1. prepare the text:
// 1.a) encode the text
TQTextStream ts (encText, IO_WriteOnly);
if (encoding == Local)
ts.setEncoding (TQTextStream::Locale);
else if (encoding == Latin1)
ts.setEncoding (TQTextStream::Latin1);
else if (encoding == Unicode)
ts.setEncoding (TQTextStream::Unicode);
else
ts.setCodec (codec);
ts << text;
// 1.b) create a temporary file for the text
tempFile.setAutoDelete(true);
TQTextStream* fs = tempFile.textStream();
if (encoding == Local)
fs->setEncoding (TQTextStream::Locale);
else if (encoding == Latin1)
fs->setEncoding (TQTextStream::Latin1);
else if (encoding == Unicode)
fs->setEncoding (TQTextStream::Unicode);
else
fs->setCodec (codec);
*fs << text;
*fs << endl;
TQString filename = tempFile.file()->name();
tempFile.close();
// 2. prepare the command:
command = prepareCommand (command, encText, filename, language);
// 3. create a new process
process << command;
connect(&process, TQT_SIGNAL(processExited(KProcess *)), this, TQT_SLOT(processExited(KProcess *)));
connect(&process, TQT_SIGNAL(wroteStdin(KProcess *)), this, TQT_SLOT(wroteStdin(KProcess *)));
connect(&process, TQT_SIGNAL(receivedStdout(KProcess *, char *, int)), this, TQT_SLOT(receivedStdout(KProcess *, char *, int)));
connect(&process, TQT_SIGNAL(receivedStderr(KProcess *, char *, int)), this, TQT_SLOT(receivedStderr(KProcess *, char *, int)));
// 4. start the process
if (stdIn) {
process.start(KProcess::NotifyOnExit, KProcess::All);
if (encText.size() > 0)
process.writeStdin(encText, encText.size());
else
process.closeStdin();
}
else
process.start(KProcess::NotifyOnExit, KProcess::AllOutput);
}
}
void Speech::receivedStdout (KProcess *, char *buffer, int buflen) {
kdDebug() << TQString::tqfromLatin1(buffer, buflen) + "\n";
}
void Speech::receivedStderr (KProcess *, char *buffer, int buflen) {
kdDebug() << TQString::tqfromLatin1(buffer, buflen) + "\n";
}
void Speech::wroteStdin(KProcess *) {
process.closeStdin();
}
void Speech::processExited(KProcess *) {
delete this;
}
#include "speech.moc"
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