qgsstringutils.h

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/***************************************************************************
    qgsstringutils.h
    ----------------
    begin                : June 2015
    copyright            : (C) 2015 by Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#include "qgis_core.h"
#include "qgis.h"
 
#include <QString>
#include <QRegularExpression>
#include <QList>
#include <QDomDocument>
#include <QFont> // for enum values
 
#ifndef QGSSTRINGUTILS_H
#define QGSSTRINGUTILS_H
 
#define FUZZY_SCORE_WORD_MATCH 5
#define FUZZY_SCORE_NEW_MATCH 3
#define FUZZY_SCORE_CONSECUTIVE_MATCH 4
 
class CORE_EXPORT QgsStringReplacement
{
 
  public:
 
    QgsStringReplacement( const QString &match,
                          const QString &replacement,
                          bool caseSensitive = false,
                          bool wholeWordOnly = false );
 
    QString match() const { return mMatch; }
 
    QString replacement() const { return mReplacement; }
 
    bool caseSensitive() const { return mCaseSensitive; }
 
    bool wholeWordOnly() const { return mWholeWordOnly; }
 
    QString process( const QString &input ) const;
 
    bool operator==( const QgsStringReplacement &other )
    {
      return mMatch == other.mMatch
             && mReplacement == other.mReplacement
             && mCaseSensitive == other.mCaseSensitive
             && mWholeWordOnly == other.mWholeWordOnly;
    }
 
    QgsStringMap properties() const;
 
    static QgsStringReplacement fromProperties( const QgsStringMap &properties );
 
  private:
 
    QString mMatch;
 
    QString mReplacement;
 
    bool mCaseSensitive;
 
    bool mWholeWordOnly;
 
    QRegularExpression mRx;
};
 
 
class CORE_EXPORT QgsStringReplacementCollection
{
 
  public:
 
    QgsStringReplacementCollection( const QList< QgsStringReplacement > &replacements = QList< QgsStringReplacement >() )
      : mReplacements( replacements )
    {}
 
    QList< QgsStringReplacement > replacements() const { return mReplacements; }
 
    void setReplacements( const QList< QgsStringReplacement > &replacements )
    {
      mReplacements = replacements;
    }
 
    QString process( const QString &input ) const;
 
    void writeXml( QDomElement &elem, QDomDocument &doc ) const;
 
    void readXml( const QDomElement &elem );
 
  private:
 
    QList< QgsStringReplacement > mReplacements;
 
 
};
 
class CORE_EXPORT QgsStringUtils
{
  public:
 
    enum Capitalization
    {
      MixedCase = QFont::MixedCase, 
      AllUppercase = QFont::AllUppercase, 
      AllLowercase = QFont::AllLowercase,  
      ForceFirstLetterToCapital = QFont::Capitalize, 
      TitleCase = QFont::Capitalize + 1000, 
      UpperCamelCase = QFont::Capitalize + 1001, 
    };
 
    static QString capitalize( const QString &string, Capitalization capitalization );
 
    static QString ampersandEncode( const QString &string );
 
    static int levenshteinDistance( const QString &string1, const QString &string2, bool caseSensitive = false );
 
    static QString longestCommonSubstring( const QString &string1, const QString &string2, bool caseSensitive = false );
 
    static int hammingDistance( const QString &string1, const QString &string2, bool caseSensitive = false );
 
    static QString soundex( const QString &string );
 
    static double fuzzyScore( const QString &candidate, const QString &search );
 
    static QString insertLinks( const QString &string, bool *foundLinks = nullptr );
 
    static bool isUrl( const QString &string );
 
    static QString wordWrap( const QString &string, int length, bool useMaxLineLength = true, const QString &customDelimiter = QString() );
 
    static QString substituteVerticalCharacters( QString string );
 
    static QString htmlToMarkdown( const QString &html );
 
    static QString qRegExpEscape( const QString &string );
 
    static QString truncateMiddleOfString( const QString &string, int maxLength );
 
};
 
#endif //QGSSTRINGUTILS_H