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- // -*- c++ -*-
- #ifndef _GLIBMM_STRINGUTILS_H
- #define _GLIBMM_STRINGUTILS_H
-
- /* $Id: stringutils.h,v 1.2 2004/06/07 17:26:39 daniel Exp $ */
-
- /* Copyright (C) 2002 The gtkmm Development Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * 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; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include <glibmm/ustring.h>
-
-
- namespace Glib
- {
-
- /** @defgroup StringUtils String Utility Functions
- *
- * This section describes a number of utility functions for creating
- * and manipulating strings, as well as other string-related stuff.
- */
-
- /** Looks whether the string @a str begins with @a prefix.
- * @ingroup StringUtils
- * @param str A string.
- * @param prefix The prefix to look for.
- * @return <tt>true</tt> if @a str begins with @a prefix, <tt>false</tt> otherwise.
- */
- bool str_has_prefix(const std::string& str, const std::string& prefix);
-
- /** Looks whether the string @a str ends with @a suffix.
- * @ingroup StringUtils
- * @param str A string.
- * @param suffix The suffix to look for.
- * @return <tt>true</tt> if @a str ends with @a suffix, <tt>false</tt> otherwise.
- */
- bool str_has_suffix(const std::string& str, const std::string& suffix);
-
-
- namespace Ascii
- {
-
- /** Converts a string to a <tt>double</tt> value.
- * @ingroup StringUtils
- * This function behaves like the standard <tt>%strtod()</tt> function does in
- * the C locale. It does this without actually changing the current
- * locale, since that would not be thread-safe.
- *
- * This function is typically used when reading configuration files or other
- * non-user input that should be locale independent. To handle input from the
- * user you should normally use locale-sensitive C++ streams.
- *
- * To convert from a string to <tt>double</tt> in a locale-insensitive way, use
- * Glib::Ascii::dtostr().
- *
- * @param str The string to convert to a numeric value.
- * @return The <tt>double</tt> value.
- * @throw std::overflow_error Thrown if the correct value would cause overflow.
- * @throw std::underflow_error Thrown if the correct value would cause underflow.
- */
- double strtod(const std::string& str);
-
- /** Converts a string to a <tt>double</tt> value.
- * @ingroup StringUtils
- * This function behaves like the standard <tt>%strtod()</tt> function does in
- * the C locale. It does this without actually changing the current
- * locale, since that would not be thread-safe.
- *
- * This function is typically used when reading configuration files or other
- * non-user input that should be locale independent. To handle input from the
- * user you should normally use locale-sensitive C++ streams.
- *
- * To convert from a string to <tt>double</tt> in a locale-insensitive way, use
- * Glib::Ascii::dtostr().
- *
- * @param str The string to convert to a numeric value.
- * @param start_index The index of the first character that should be used in the conversion.
- * @retval end_index The index of the character after the last character used in the conversion.
- * @return The <tt>double</tt> value.
- * @throw std::out_of_range Thrown if @a start_index is out of range.
- * @throw std::overflow_error Thrown if the correct value would cause overflow.
- * @throw std::underflow_error Thrown if the correct value would cause underflow.
- */
- double strtod(const std::string& str,
- std::string::size_type& end_index,
- std::string::size_type start_index = 0);
-
- /** Converts a <tt>double</tt> to a string, using the <tt>'.'</tt> as decimal point.
- * @ingroup StringUtils
- * This functions generates enough precision that converting the string back
- * using Glib::Ascii::strtod() gives the same machine-number (on machines with
- * IEEE compatible 64bit doubles).
- *
- * @param d The <tt>double</tt> value to convert.
- * @return The converted string.
- */
- std::string dtostr(double d);
-
- } // namespace Ascii
-
-
- /** Escapes all special characters in the string.
- * @ingroup StringUtils
- * Escapes the special characters <tt>'\\b'</tt>, <tt>'\\f'</tt>, <tt>'\\n'</tt>,
- * <tt>'\\r'</tt>, <tt>'\\t'</tt>, <tt>'\\'</tt> and <tt>'"'</tt> in the string
- * @a source by inserting a <tt>'\\'</tt> before them. Additionally all characters
- * in the range <tt>0x01</tt> - <tt>0x1F</tt> (everything below <tt>SPACE</tt>)
- * and in the range <tt>0x80</tt> - <tt>0xFF</tt> (all non-ASCII chars)
- * are replaced with a <tt>'\\'</tt> followed by their octal representation.
- *
- * Glib::strcompress() does the reverse conversion.
- *
- * @param source A string to escape.
- * @return A copy of @a source with certain characters escaped. See above.
- */
- std::string strescape(const std::string& source);
-
- /** Escapes all special characters in the string.
- * @ingroup StringUtils
- * Escapes the special characters <tt>'\\b'</tt>, <tt>'\\f'</tt>, <tt>'\\n'</tt>,
- * <tt>'\\r'</tt>, <tt>'\\t'</tt>, <tt>'\\'</tt> and <tt>'"'</tt> in the string
- * @a source by inserting a <tt>'\\'</tt> before them. Additionally all characters
- * in the range <tt>0x01</tt> - <tt>0x1F</tt> (everything below <tt>SPACE</tt>)
- * and in the range <tt>0x80</tt> - <tt>0xFF</tt> (all non-ASCII chars)
- * are replaced with a <tt>'\\'</tt> followed by their octal representation.
- * Characters supplied in @a exceptions are not escaped.
- *
- * Glib::strcompress() does the reverse conversion.
- *
- * @param source A string to escape.
- * @param exceptions A string of characters not to escape in @a source.
- * @return A copy of @a source with certain characters escaped. See above.
- */
- std::string strescape(const std::string& source, const std::string& exceptions);
-
- /** Replaces all escaped characters with their one byte equivalent.
- * @ingroup StringUtils
- * This function does the reverse conversion of Glib::strescape().
- *
- * @param source A string to compress.
- * @return A copy of @a source with all escaped characters compressed.
- */
- std::string strcompress(const std::string& source);
-
- /** Returns a string corresponding to the given error code, e.g.\ <tt>"no such process"</tt>.
- * @ingroup StringUtils
- * This function is included since not all platforms support the
- * <tt>%strerror()</tt> function.
- *
- * @param errnum The system error number. See the standard C <tt>errno</tt> documentation.
- * @return A string describing the error code. If the error code is unknown,
- * <tt>"unknown error (<em>\<errnum\></em>)"</tt> is returned.
- */
- Glib::ustring strerror(int errnum);
-
- /** Returns a string describing the given signal, e.g.\ <tt>"Segmentation fault"</tt>.
- * @ingroup StringUtils
- * This function is included since not all platforms support the
- * <tt>%strsignal()</tt> function.
- *
- * @param signum The signal number. See the <tt>signal()</tt> documentation.
- * @return A string describing the signal. If the signal is unknown,
- * <tt>"unknown signal (<em>\<signum\></em>)"</tt> is returned.
- */
- Glib::ustring strsignal(int signum);
-
- } // namespace Glib
-
-
- #endif /* _GLIBMM_STRINGUTILS_H */
-
-