Beispiel #1
0
QString QgsStringUtils::capitalize( const QString& string, QgsStringUtils::Capitalization capitalization )
{
  if ( string.isEmpty() )
    return QString();

  switch ( capitalization )
  {
    case MixedCase:
      return string;

    case AllUppercase:
      return string.toUpper();

    case AllLowercase:
      return string.toLower();

    case ForceFirstLetterToCapital:
    {
      QString temp = string;

      QTextBoundaryFinder wordSplitter( QTextBoundaryFinder::Word, string.constData(), string.length(), 0, 0 );
      QTextBoundaryFinder letterSplitter( QTextBoundaryFinder::Grapheme, string.constData(), string.length(), 0, 0 );

      wordSplitter.setPosition( 0 );
      bool first = true;
      while (( first && wordSplitter.boundaryReasons() & QTextBoundaryFinder::StartOfItem )
             || wordSplitter.toNextBoundary() >= 0 )
      {
        first = false;
        letterSplitter.setPosition( wordSplitter.position() );
        letterSplitter.toNextBoundary();
        QString substr = string.mid( wordSplitter.position(), letterSplitter.position() - wordSplitter.position() );
        temp.replace( wordSplitter.position(), substr.length(), substr.toUpper() );
      }
      return temp;
    }

  }
  // no warnings
  return string;
}
QString QgsStringUtils::capitalize( const QString &string, QgsStringUtils::Capitalization capitalization )
{
  if ( string.isEmpty() )
    return QString();

  switch ( capitalization )
  {
    case MixedCase:
      return string;

    case AllUppercase:
      return string.toUpper();

    case AllLowercase:
      return string.toLower();

    case ForceFirstLetterToCapital:
    {
      QString temp = string;

      QTextBoundaryFinder wordSplitter( QTextBoundaryFinder::Word, string.constData(), string.length(), nullptr, 0 );
      QTextBoundaryFinder letterSplitter( QTextBoundaryFinder::Grapheme, string.constData(), string.length(), nullptr, 0 );

      wordSplitter.setPosition( 0 );
      bool first = true;
      while ( ( first && wordSplitter.boundaryReasons() & QTextBoundaryFinder::StartOfItem )
              || wordSplitter.toNextBoundary() >= 0 )
      {
        first = false;
        letterSplitter.setPosition( wordSplitter.position() );
        letterSplitter.toNextBoundary();
        QString substr = string.mid( wordSplitter.position(), letterSplitter.position() - wordSplitter.position() );
        temp.replace( wordSplitter.position(), substr.length(), substr.toUpper() );
      }
      return temp;
    }

    case TitleCase:
    {
      // yes, this is MASSIVELY simplifying the problem!!

      static QStringList smallWords;
      static QStringList newPhraseSeparators;
      static QRegularExpression splitWords;
      if ( smallWords.empty() )
      {
        smallWords = QObject::tr( "a|an|and|as|at|but|by|en|for|if|in|nor|of|on|or|per|s|the|to|vs.|vs|via" ).split( '|' );
        newPhraseSeparators = QObject::tr( ".|:" ).split( '|' );
        splitWords = QRegularExpression( QStringLiteral( "\\b" ), QRegularExpression::UseUnicodePropertiesOption );
      }

      const QStringList parts = string.split( splitWords, QString::SkipEmptyParts );
      QString result;
      bool firstWord = true;
      int i = 0;
      int lastWord = parts.count() - 1;
      for ( const QString &word : qgis::as_const( parts ) )
      {
        if ( newPhraseSeparators.contains( word.trimmed() ) )
        {
          firstWord = true;
          result += word;
        }
        else if ( firstWord || ( i == lastWord ) || !smallWords.contains( word ) )
        {
          result += word.at( 0 ).toUpper() + word.mid( 1 );
          firstWord = false;
        }
        else
        {
          result += word;
        }
        i++;
      }
      return result;
    }
  }
  // no warnings
  return string;
}