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+/* This file is part of the KDE libraries
+ Copyright (C) 1999 Ian Zepp (icszepp@islc.net)
+ Copyright (C) 2000 Rik Hemsley (rikkus) <rik@kde.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+#ifndef KSTRINGHANDLER_H
+#define KSTRINGHANDLER_H
+
+#include <tqstring.h>
+#include <tqstringlist.h>
+#include <tqregexp.h> // for the word ranges
+#include <tqfontmetrics.h>
+#include "kdelibs_export.h"
+
+/**
+ * This class contains utility functions for handling strings.
+ *
+ * This class is @em not a substitute for the TQString class. What
+ * I tried to do with this class is provide an easy way to
+ * cut/slice/splice words inside sentences in whatever order desired.
+ * While the main focus of this class are words (ie characters
+ * separated by spaces/tabs), the two core functions here ( split()
+ * and join() ) will function given any char to use as a separator.
+ * This will make it easy to redefine what a 'word' means in the
+ * future if needed.
+ *
+ * I freely stole some of the function names from python. I also think
+ * some of these were influenced by mIRC (yes, believe it if you will, I
+ * used to write a LOT of scripts in mIRC).
+ *
+ * The ranges are a fairly powerful way of getting/stripping words from
+ * a string. These ranges function, for the large part, as they would in
+ * python. See the word(const TQString&, const char *) and remword(const TQString&, uint) functions for more detail.
+ *
+ * This class contains no data members of its own. All strings are cut
+ * on the fly and returned as new qstrings/qstringlists.
+ *
+ * Quick example on how to use:
+ *
+ * \code
+ * KStringHandler kstr;
+ * TQString line = "This is a test of the strings";
+ *
+ * cout << "1> " << kstr.word( line , "4:" ) << "\n";
+ * cout << "2> " << kstr.remrange( line , "2:5" ) << "\n";
+ * cout << "2> " << kstr.reverse( line ) << "\n";
+ * cout << "2> " << kstr.center( kstr.word( line , 4 ) , 15 ) << "\n";
+ * \endcode
+ *
+ * and so forth.
+ *
+ * @short Class for manipulating words and sentences in strings
+ * @author Ian Zepp <icszepp@islc.net>
+ * @see KShell
+ */
+class KDECORE_EXPORT KStringHandler
+{
+public:
+ /** Returns the nth word in the string if found
+ * Returns a EMPTY (not null) string otherwise.
+ * Note that the FIRST index is 0.
+ * @param text the string to search for the words
+ * @param pos the position of the word to search
+ * @return the word, or an empty string if not found
+ * @deprecated use TQString::section instead
+ */
+ static TQString word( const TQString &text , uint pos ) KDE_DEPRECATED;
+
+ /** Returns a range of words from that string.
+ * Ie:
+ * @li "0" returns the very first word
+ * @li "0:" returns the first to the last word
+ * @li "0:3" returns the first to fourth words
+ * @li ":3" returns everything up to the fourth word
+ *
+ * If you grok python, you're set.
+ * @param text the string to search for the words
+ * @param range the words to return (see description)
+ * @return the words, or an empty string if not found
+ */
+ static TQString word( const TQString &text , const char *range );
+
+ /** Inserts a word into the string, and returns
+ * a new string with the word included. the first
+ * index is zero (0). If there are not @p pos words in the original
+ * string, the new word will be appended to the end.
+ * @param text the original text
+ * @param word the word to insert
+ * @param pos the position (in words) for the new word
+ * @return the resulting string
+ */
+ static TQString insword( const TQString &text , const TQString &word , uint pos );
+
+ /** Replaces a word in the string, and returns
+ * a new string with the word included. the first
+ * index is zero (0). If there are not @p pos words in the original
+ * string, the new word will be appended to the end.
+ * @param text the original text
+ * @param word the word to insert
+ * @param pos the position (in words) for the new word
+ * @return the resulting string
+ */
+ static TQString setword( const TQString &text , const TQString &word , uint pos );
+
+ /** Removes a word or ranges of words from the string,
+ * and returns a new string. The ranges definitions
+ * follow the definitions for the word() function.
+ *
+ * @li "0" removes the very first word
+ * @li "0:" removes the first the the last word
+ * @li "0:3" removes the first to fourth words
+ * @li ":3" removes everything up to the fourth word
+ * @param text the original text
+ * @param range the words to remove (see description)
+ * @return the resulting string
+ */
+ static TQString remrange( const TQString &text , const char *range );
+
+
+ /** Removes a word at the given index, and returns a
+ * new string. The first index is zero (0).
+ * @param text the original text
+ * @param pos the position (in words) of thw word to delete
+ * @return the resulting string
+ */
+ static TQString remword( const TQString &text , uint pos );
+
+ /** Removes a matching word from the string, and returns
+ * a new string. Note that only ONE match is removed.
+ * @param text the original text
+ * @param word the word to remove
+ * @return the resulting string
+ */
+ static TQString remword( const TQString &text , const TQString &word );
+
+ /** Capitalizes each word in the string
+ * "hello there" becomes "Hello There" (string)
+ * @param text the text to capitalize
+ * @return the resulting string
+ */
+ static TQString capwords( const TQString &text );
+
+ /** Capitalizes each word in the list
+ * [hello, there] becomes [Hello, There] (list)
+ * @param list the list to capitalize
+ * @return the resulting list
+ */
+ static TQStringList capwords( const TQStringList &list );
+
+ /** Reverses the order of the words in a string
+ * "hello there" becomes "there hello" (string)
+ * @param text the text to reverse
+ * @return the resulting string
+ */
+ static TQString reverse( const TQString &text );
+
+ /** Reverses the order of the words in a list
+ * [hello, there] becomes [there, hello] (list)
+ * @param list the list to reverse
+ * @return the resulting list
+ */
+ static TQStringList reverse( const TQStringList &list );
+
+ /** Left-justifies a string and returns a string at least 'width' characters
+ * wide.
+ * If the string is longer than the @p width, the original
+ * string is returned. It is never truncated.
+ * @param text the text to justify
+ * @param width the desired width of the new string
+ * @return the resulting string
+ * @deprecated use TQString::leftJustify instead
+ */
+ static TQString ljust( const TQString &text , uint width ) KDE_DEPRECATED;
+
+ /** Right-justifies a string and returns a string at least 'width' characters
+ * wide.
+ * If the string is longer than the @p width, the original
+ * string is returned. It is never truncated.
+ * @param text the text to justify
+ * @param width the desired width of the new string
+ * @return the resulting string
+ * @deprecated use TQString::rightJustify instead
+ */
+ static TQString rjust( const TQString &text , uint width ) KDE_DEPRECATED;
+
+ /** Centers a string and returns a string at least 'width' characters
+ * wide.
+ * If the string is longer than the @p width, the original
+ * string is returned. It is never truncated.
+ * @param text the text to justify
+ * @param width the desired width of the new string
+ * @return the resulting string
+ */
+ static TQString center( const TQString &text , uint width );
+
+ /** Substitute characters at the beginning of a string by "...".
+ * @param str is the string to modify
+ * @param maxlen is the maximum length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ */
+ static TQString lsqueeze( const TQString & str, uint maxlen = 40 );
+
+ /** Substitute characters at the beginning of a string by "...". Similar to
+ * method above, except that it truncates based on pixel width rather than
+ * the number of characters
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxlen is the maximum length in ems the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString lEmSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxlen = 30 );
+
+ /** Substitute characters at the beginning of a string by "...". Similar to
+ * method above, except that maxlen is the width in pixels to truncate to
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxPixels is the maximum pixel length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString lPixelSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxPixels );
+
+ /** Substitute characters at the middle of a string by "...".
+ * @param str is the string to modify
+ * @param maxlen is the maximum length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ */
+ static TQString csqueeze( const TQString & str, uint maxlen = 40 );
+
+ /** Substitute characters in the middle of a string by "...". Similar to
+ * method above, except that it truncates based on pixel width rather than
+ * the number of characters
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxlen is the maximum length in ems the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString cEmSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxlen = 30 );
+
+ /** Substitute characters in the middle of a string by "...". Similar to
+ * method above, except that maxlen is the width in pixels to truncate to
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxPixels is the maximum pixel length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString cPixelSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxPixels );
+
+ /** Substitute characters at the end of a string by "...".
+ * @param str is the string to modify
+ * @param maxlen is the maximum length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ */
+ static TQString rsqueeze( const TQString & str, uint maxlen = 40 );
+
+ /** Substitute characters at the end of a string by "...". Similar to
+ * method above, except that it truncates based on pixel width rather than
+ * the number of characters
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxlen is the maximum length in ems the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString rEmSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxlen = 30 );
+
+ /** Substitute characters at the end of a string by "...". Similar to
+ * method above, except that maxlen is the width in pixels to truncate to
+ * @param name is the string to modify
+ * @param fontMetrics is the font metrics to use to calculate character sizes
+ * @param maxPixels is the maximum pixel length the modified string will have
+ * If the original string is shorter than "maxlen", it is returned verbatim
+ * @return the modified string
+ * @since 3.2
+ */
+ static TQString rPixelSqueeze( const TQString & name,
+ const TQFontMetrics& fontMetrics,
+ uint maxPixels );
+
+ /**
+ * Match a filename.
+ * @param filename is the real decoded filename (or dirname
+ * without trailing '/').
+ * @param pattern is a pattern like *.txt, *.tar.gz, Makefile.*, *README*, etc.
+ * Patterns with two asterisks like "*.*pk" are not supported.
+ * @return true if the given filename matches the given pattern
+ */
+ static bool matchFileName( const TQString& filename, const TQString& pattern );
+ // KDE4: move to KShell
+
+ /**
+ * Split a TQString into a TQStringList in a similar fashion to the static
+ * TQStringList function in Qt, except you can specify a maximum number
+ * of tokens. If max is specified (!= 0) then only that number of tokens
+ * will be extracted. The final token will be the remainder of the string.
+ *
+ * Example:
+ * \code
+ * perlSplit("__", "some__string__for__you__here", 4)
+ * TQStringList contains: "some", "string", "for", "you__here"
+ * \endcode
+ *
+ * @param sep is the string to use to delimit s.
+ * @param s is the input string
+ * @param max is the maximum number of extractions to perform, or 0.
+ * @return A TQStringList containing tokens extracted from s.
+ */
+ static TQStringList perlSplit
+ (const TQString & sep, const TQString & s, uint max = 0);
+
+ /**
+ * Split a TQString into a TQStringList in a similar fashion to the static
+ * TQStringList function in Qt, except you can specify a maximum number
+ * of tokens. If max is specified (!= 0) then only that number of tokens
+ * will be extracted. The final token will be the remainder of the string.
+ *
+ * Example:
+ * \code
+ * perlSplit(' ', "kparts reaches the parts other parts can't", 3)
+ * TQStringList contains: "kparts", "reaches", "the parts other parts can't"
+ * \endcode
+ *
+ * @param sep is the character to use to delimit s.
+ * @param s is the input string
+ * @param max is the maximum number of extractions to perform, or 0.
+ * @return A TQStringList containing tokens extracted from s.
+ */
+ static TQStringList perlSplit
+ (const TQChar & sep, const TQString & s, uint max = 0);
+
+ /**
+ * Split a TQString into a TQStringList in a similar fashion to the static
+ * TQStringList function in Qt, except you can specify a maximum number
+ * of tokens. If max is specified (!= 0) then only that number of tokens
+ * will be extracted. The final token will be the remainder of the string.
+ *
+ * Example:
+ * \code
+ * perlSplit(TQRegExp("[! ]", "Split me up ! I'm bored ! OK ?", 3)
+ * TQStringList contains: "Split", "me", "up ! I'm bored, OK ?"
+ * \endcode
+ *
+ * @param sep is the regular expression to use to delimit s.
+ * @param s is the input string
+ * @param max is the maximum number of extractions to perform, or 0.
+ * @return A TQStringList containing tokens extracted from s.
+ */
+ static TQStringList perlSplit
+ (const TQRegExp & sep, const TQString & s, uint max = 0);
+
+ /**
+ * This method auto-detects URLs in strings, and adds HTML markup to them
+ * so that richtext or HTML-enabled widgets (such as KActiveLabel)
+ * will display the URL correctly.
+ * @param text the string which may contain URLs
+ * @return the resulting text
+ * @since 3.1
+ */
+ static TQString tagURLs( const TQString& text );
+
+ /**
+ Obscure string by using a simple symmetric encryption. Applying the
+ function to a string obscured by this function will result in the original
+ string.
+
+ The function can be used to obscure passwords stored to configuration
+ files. Note that this won't give you any more security than preventing
+ that the password is directly copied and pasted.
+
+ @param str string to be obscured
+ @return obscured string
+ @since 3.2
+ */
+ static TQString obscure( const TQString &str );
+
+ /**
+ Guess whether a string is UTF8 encoded.
+
+ @param str the string to check
+ @return true if UTF8. If false, the string is probably in Local8Bit.
+ @since 3.2
+ */
+ static bool isUtf8( const char *str );
+
+ /**
+ Construct TQString from a c string, guessing whether it is UTF8- or
+ Local8Bit-encoded.
+
+ @param str the input string
+ @return the (hopefully correctly guessed) TQString representation of @p str
+ @since 3.2
+ */
+ static TQString from8Bit( const char *str );
+
+#ifdef KDE_NO_COMPAT
+private:
+#endif
+ /**
+ * @deprecated Use matchFileName () instead.
+ */
+ static KDE_DEPRECATED bool matchFilename( const TQString& filename, const TQString& pattern )
+ {
+ return matchFileName (filename, pattern);
+ }
+
+};
+#endif