[r13118]: trunk / rosegarden / src / misc / Strings.cpp Maximize Restore History

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Strings.cpp    282 lines (218 with data), 5.3 kB

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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Rosegarden
A sequencer and musical notation editor.
Copyright 2000-2012 the Rosegarden development team.
See the AUTHORS file for more details.
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. See the file
COPYING included with this distribution for more information.
*/
#include "Strings.h"
#include "base/Composition.h"
#include "base/Segment.h"
#include "base/Event.h"
#include <QTextCodec>
#include <QVariant>
#include <QString>
namespace Rosegarden
{
QString strtoqstr(const std::string &str)
{
return QString::fromUtf8(str.c_str());
}
QString strtoqstr(const Rosegarden::PropertyName &p)
{
return QString::fromUtf8(p.c_str());
}
std::string qstrtostr(const QString &qstr)
{
return std::string(qstr.toUtf8().data());
}
std::string qStrToStrUtf8(const QString &qstr)
{
return qstrtostr(qstr);
}
std::string qStrToStrLocal8(const QString &qstr)
{
return std::string(qstr.toLocal8Bit().data());
}
/**
* Unlike strtod(3) or QString::toDouble(), this is locale-independent
* and always uses '.' as a decimal point. We use it when reading
* things like configuration values from XML files where we want to
* guarantee the same value is used regardless of surrounding locale.
*/
double strtodouble(const std::string &s)
{
int dp = 0;
int sign = 1;
size_t i = 0; //@@@
double result = 0.0;
size_t len = s.length();
result = 0.0;
while (i < len && isspace(s[i]))
++i;
if (i < len && s[i] == '-')
sign = -1;
while (i < len) {
char c = s[i];
if (isdigit(c)) {
double d = c - '0';
if (dp > 0) {
for (int p = dp; p > 0; --p)
d /= 10.0;
++dp;
} else {
result *= 10.0;
}
result += d;
} else if (c == '.') {
dp = 1;
}
++i;
}
return result * sign;
}
double qstrtodouble(const QString &s)
{
return strtodouble(qstrtostr(s));
}
bool qStrToBool(const QString &s)
{
QString tt = s.toLower();
tt = tt.trimmed();
if ( (tt == "1") || (tt == "true") || (tt == "yes") || (tt == "on") ){
return true;
}
return false;
}
bool qStrToBool(const QVariant &v)
{
return qStrToBool( v.toString() );
}
std::string
convertFromCodec(std::string text, QTextCodec *codec)
{
if (codec)
return qstrtostr(codec->toUnicode(text.c_str(), text.length()));
else
return text;
}
std::ostream &
operator<<(std::ostream &target, const QString &str)
{
return target << str.toLocal8Bit().data();
}
QTextStream &
operator<<(QTextStream &target, const std::string &str)
{
return target << QString(str.c_str());
}
QStringList
splitQuotedString(QString s)
{
QStringList tokens;
QString tok;
enum { sep, unq, q1, q2 } mode = sep;
for (int i = 0; i < s.length(); ++i) {
QChar c = s[i];
if (c == '\'') {
switch (mode) {
case sep: mode = q1; break;
case unq: case q2: tok += c; break;
case q1: mode = sep; tokens << tok; tok = ""; break;
}
} else if (c == '"') {
switch (mode) {
case sep: mode = q2; break;
case unq: case q1: tok += c; break;
case q2: mode = sep; tokens << tok; tok = ""; break;
}
} else if (c.isSpace()) {
switch (mode) {
case sep: break;
case unq: mode = sep; tokens << tok; tok = ""; break;
case q1: case q2: tok += c; break;
}
} else if (c == '\\') {
if (++i < s.length()) {
c = s[i];
switch (mode) {
case sep: mode = unq; tok += c; break;
default: tok += c; break;
}
}
} else {
switch (mode) {
case sep: mode = unq; tok += c; break;
default: tok += c; break;
}
}
}
if (tok != "" || mode != sep) tokens << tok;
return tokens;
}
/*
void testSplit()
{
QStringList tests;
tests << "a b c d";
tests << "a \"b c\" d";
tests << "a 'b c' d";
tests << "a \"b c\\\" d\"";
tests << "a 'b c\\' d'";
tests << "a \"b c' d\"";
tests << "a 'b c\" d'";
tests << "aa 'bb cc\" dd'";
tests << "a'a 'bb' \\\"cc\" dd\\\"";
tests << " a'a \\\' 'bb' \' \\\"cc\" ' dd\\\" '";
for (int j = 0; j < tests.size(); ++j) {
cout << endl;
cout << tests[j].toStdString() << endl;
cout << "->" << endl << "(";
QStringList l = splitQuoted(tests[j]);
for (int i = 0; i < l.size(); ++i) {
if (i > 0) cout << ";";
cout << l[i].toStdString();
}
cout << ")" << endl;
}
}
*/
/*
Results:
a b c d
->
(a;b;c;d)
a "b c" d
->
(a;b c;d)
a 'b c' d
->
(a;b c;d)
a "b c\" d"
->
(a;b c" d)
a 'b c\' d'
->
(a;b c' d)
a "b c' d"
->
(a;b c' d)
a 'b c" d'
->
(a;b c" d)
aa 'bb cc" dd'
->
(aa;bb cc" dd)
a'a 'bb' \"cc" dd\"
->
(a'a;bb;"cc";dd")
a'a \' 'bb' ' \"cc" ' dd\" '
->
(a'a;';bb; "cc" ;dd";)
*/
}