mirror of https://github.com/OpenMW/openmw.git
Added support for the load order of plugins specified in the profiles
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f219b0d47a
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/*
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* This file contains code found in the QtGui module of the Qt Toolkit.
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* See Qt's qfilesystemmodel source files for more information
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*/
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#include "naturalsort.hpp"
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static inline QChar getNextChar(const QString &s, int location)
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{
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return (location < s.length()) ? s.at(location) : QChar();
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}
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/*!
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* Natural number sort, skips spaces.
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*
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* Examples:
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* 1, 2, 10, 55, 100
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* 01.jpg, 2.jpg, 10.jpg
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*
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* Note on the algorithm:
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* Only as many characters as necessary are looked at and at most they all
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* are looked at once.
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*
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* Slower then QString::compare() (of course)
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*/
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int naturalCompare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs)
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{
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for (int l1 = 0, l2 = 0; l1 <= s1.count() && l2 <= s2.count(); ++l1, ++l2) {
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// skip spaces, tabs and 0's
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QChar c1 = getNextChar(s1, l1);
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while (c1.isSpace())
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c1 = getNextChar(s1, ++l1);
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QChar c2 = getNextChar(s2, l2);
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while (c2.isSpace())
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c2 = getNextChar(s2, ++l2);
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if (c1.isDigit() && c2.isDigit()) {
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while (c1.digitValue() == 0)
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c1 = getNextChar(s1, ++l1);
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while (c2.digitValue() == 0)
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c2 = getNextChar(s2, ++l2);
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int lookAheadLocation1 = l1;
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int lookAheadLocation2 = l2;
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int currentReturnValue = 0;
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// find the last digit, setting currentReturnValue as we go if it isn't equal
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for (
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QChar lookAhead1 = c1, lookAhead2 = c2;
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(lookAheadLocation1 <= s1.length() && lookAheadLocation2 <= s2.length());
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lookAhead1 = getNextChar(s1, ++lookAheadLocation1),
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lookAhead2 = getNextChar(s2, ++lookAheadLocation2)
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) {
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bool is1ADigit = !lookAhead1.isNull() && lookAhead1.isDigit();
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bool is2ADigit = !lookAhead2.isNull() && lookAhead2.isDigit();
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if (!is1ADigit && !is2ADigit)
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break;
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if (!is1ADigit)
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return -1;
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if (!is2ADigit)
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return 1;
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if (currentReturnValue == 0) {
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if (lookAhead1 < lookAhead2) {
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currentReturnValue = -1;
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} else if (lookAhead1 > lookAhead2) {
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currentReturnValue = 1;
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}
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}
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}
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if (currentReturnValue != 0)
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return currentReturnValue;
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}
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if (cs == Qt::CaseInsensitive) {
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if (!c1.isLower()) c1 = c1.toLower();
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if (!c2.isLower()) c2 = c2.toLower();
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}
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int r = QString::localeAwareCompare(c1, c2);
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if (r < 0)
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return -1;
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if (r > 0)
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return 1;
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}
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// The two strings are the same (02 == 2) so fall back to the normal sort
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return QString::compare(s1, s2, cs);
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}
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bool naturalSortLessThanCS( const QString &left, const QString &right )
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{
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return (naturalCompare( left, right, Qt::CaseSensitive ) < 0);
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}
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bool naturalSortLessThanCI( const QString &left, const QString &right )
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{
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return (naturalCompare( left, right, Qt::CaseInsensitive ) < 0);
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}
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@ -0,0 +1,9 @@
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#ifndef NATURALSORT_H
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#define NATURALSORT_H
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#include <QString>
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bool naturalSortLessThanCS( const QString &left, const QString &right );
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bool naturalSortLessThanCI( const QString &left, const QString &right );
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#endif
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