File indexing completed on 2025-04-27 13:41:11

 /*
    SPDX-FileCopyrightText: 2023 Laurent Montel <montel@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "converttext.h"
 #include <QChar>
 #include <QString>
 
 using namespace TextUtils;
 
 // code from kitinerary/src/lib/stringutil.cpp
 QString ConvertText::normalize(QStringView str)
 {
     QString out;
     out.reserve(str.size());
     for (const auto c : str) {
         // case folding
         const auto n = c.toCaseFolded();
 
         // if the character has a canonical decomposition use that and skip the
         // combining diacritic markers following it
         // see https://en.wikipedia.org/wiki/Unicode_equivalence
         // see https://en.wikipedia.org/wiki/Combining_character
         if (n.decompositionTag() == QChar::Canonical) {
             out.push_back(n.decomposition().at(0));
         }
         // handle compatibility compositions such as ligatures
         // see https://en.wikipedia.org/wiki/Unicode_compatibility_characters
         else if (n.decompositionTag() == QChar::Compat && n.isLetter() && n.script() == QChar::Script_Latin) {
             out.append(n.decomposition());
         } else {
             out.push_back(n);
         }
     }
     return out;
 }
 
 void ConvertText::upperCase(QTextCursor &cursor)
 {
     if (cursor.hasSelection()) {
         const QString newText = cursor.selectedText().toUpper();
         cursor.insertText(newText);
     }
 }
 
 void ConvertText::lowerCase(QTextCursor &cursor)
 {
     if (cursor.hasSelection()) {
         const QString newText = cursor.selectedText().toLower();
         cursor.insertText(newText);
     }
 }
 
 void ConvertText::sentenceCase(QTextCursor &cursor)
 {
     if (cursor.hasSelection()) {
         QString newText = cursor.selectedText();
         const int nbChar(newText.length());
         for (int i = 0; i < nbChar; ++i) {
             if (i == 0 && newText.at(0).isLetter()) {
                 newText.replace(0, 1, newText.at(0).toUpper());
             } else if (newText.at(i) == QChar::ParagraphSeparator || newText.at(i) == QChar::LineSeparator) {
                 ++i;
                 if (i < nbChar) {
                     if (newText.at(i).isLetter()) {
                         newText.replace(i, 1, newText.at(i).toUpper());
                     }
                 }
             }
         }
         cursor.insertText(newText);
     }
 }
 
 void ConvertText::reverseCase(QTextCursor &cursor)
 {
     if (cursor.hasSelection()) {
         const QString newText = cursor.selectedText();
         QString reverseCaseText;
         const int nbChar(newText.length());
         for (int i = 0; i < nbChar; ++i) {
             QChar charVal = newText.at(i);
             if (charVal.isLetter()) {
                 if (charVal.isLower()) {
                     charVal = charVal.toUpper();
                 } else {
                     charVal = charVal.toLower();
                 }
             }
             reverseCaseText += charVal;
         }
         cursor.insertText(reverseCaseText);
     }
 }