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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
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.
*/
/*
This is a modified version of a source file from the
Rosegarden MIDI and audio sequencer and notation editor.
This file copyright 2000-2010 Chris Cannam.
*/
#include "StringBits.h"
#include "Debug.h"
using namespace std;
double
StringBits::stringToDoubleLocaleFree(QString s, bool *ok)
{
int dp = 0;
int sign = 1;
int i = 0;
double result = 0.0;
int len = s.length();
result = 0.0;
if (ok) *ok = true;
while (i < len && s[i].isSpace()) ++i;
if (i < len && s[i] == '-') sign = -1;
while (i < len) {
QChar c = s[i];
if (c.isDigit()) {
double d = c.digitValue();
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;
} else if (ok) {
*ok = false;
}
++i;
}
return result * sign;
}
QStringList
StringBits::splitQuoted(QString s, QChar separator)
{
QStringList tokens;
QString tok;
// sep -> just seen a field separator (or start of line)
// unq -> in an unquoted field
// q1 -> in a single-quoted field
// q2 -> in a double-quoted field
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 = unq; break;
}
} else if (c == '"') {
switch (mode) {
case sep: mode = q2; break;
case unq: case q1: tok += c; break;
case q2: mode = unq; break;
}
} else if (c == separator || (separator == ' ' && c.isSpace())) {
switch (mode) {
case sep: if (separator != ' ') tokens << ""; 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;
case unq: case q1: case q2: tok += c; break;
}
}
} else {
switch (mode) {
case sep: mode = unq; tok += c; break;
case unq: case q1: case q2: tok += c; break;
}
}
}
if (tok != "" || mode != sep) {
if (mode == q1) {
tokens << ("'" + tok); // turns out it wasn't quoted after all
} else if (mode == q2) {
tokens << ("\"" + tok);
} else {
tokens << tok;
}
}
return tokens;
}
QStringList
StringBits::split(QString line, QChar separator, bool quoted)
{
if (quoted) {
return splitQuoted(line, separator);
} else {
return line.split(separator,
separator == ' ' ? QString::SkipEmptyParts :
QString::KeepEmptyParts);
}
}
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