i18n.cpp

LINUX下发送邮件的库,测试很好用,有各种发送测试的例子

/*************************************************************************
 *                                                                       *
 * 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 "i18n.h"

/**
 * Initialize the i18n subsystem.
 * Will be called by libsmtp++ when the library is loaded 
 * but must be called again if messages that belongs to 
 * another textdomain than "libsmtp++" should be translated.
 *
 * @param textdomain The textdomain that should be added.
 * @param locale_dir The directory that contains the message
 *                   files for this textdomain.
 */
void I18N::init (const string &textdomain, const string &locale_dir)
{
	bindtextdomain (textdomain.c_str (), locale_dir.c_str ());
	setlocale (LC_ALL,"");
}

/**
 * Translates the string msgid.
 * The string msgid will be translated using the
 * glibc gettext() function. Additionally the string
 * can include special substitution characters, which
 * will be substituted with the strings in the array 
 * params.
 * EG: "This is a test arg $0, and this is another one: $1"
 * $0 will be substituted by params[0], $1 will be substituted
 * by params[1], etc.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param params     The strings that should be inserted into
 *                   the translated message.
 * @param count      The size of the array params.
 * @returns          The translated string.
 */
string I18N::i18n
				( 
				 	const string &textdomain, 
					const string &msgid, 
					string params[], 
					unsigned int count 
				)
{
	string i18n_msg = dgettext (textdomain.c_str (), msgid.c_str ());

	unsigned int idx = 0;
	unsigned int pos = 0;
	while ((pos = i18n_msg.find ("$"+String::itoa (idx))) != string::npos)
	{
		if (idx < count)
		{
			int len = String::itoa (idx).length () + 1;
			i18n_msg.replace (pos, len, params[idx]);
		}
		idx++;
	}

	return (i18n_msg);
}

/**
 * The same as the first method, just with only five
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param param1     Substitution string for $0.
 * @param param2     Substitution string for $1.
 * @param param3     Substitution string for $2.
 * @param param4     Substitution string for $3.
 * @param param5     Substitution string for $4.
 * @returns          The translated string.
 */
string I18N::i18n
		( 
			const string &textdomain, 
			const string &msgid, 
			const string &param1, 
			const string &param2, 
			const string &param3, 
			const string &param4,
			const string &param5
		)
{
	string params[] = { param1, param2, param3, param4, param5 };

	return (I18N::i18n (textdomain, msgid, params, 5));
}

/**
 * The same as the first method, just with only four
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param param1     Substitution string for $0.
 * @param param2     Substitution string for $1.
 * @param param3     Substitution string for $2.
 * @param param4     Substitution string for $3.
 * @returns          The translated string.
 */
string I18N::i18n
		( 
			const string &textdomain, 
			const string &msgid, 
			const string &param1, 
			const string &param2, 
			const string &param3, 
			const string &param4 
		)
{
	string params[] = { param1, param2, param3, param4 };

	return (I18N::i18n (textdomain, msgid, params, 4));
}

/**
 * The same as the first method, just with only three
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param param1     Substitution string for $0.
 * @param param2     Substitution string for $1.
 * @param param3     Substitution string for $2.
 * @returns          The translated string.
 */
string I18N::i18n
		( 
			const string &textdomain, 
			const string &msgid, 
			const string &param1, 
			const string &param2, 
			const string &param3 
		)
{
	string params[] = { param1, param2, param3 };

	return (I18N::i18n (textdomain, msgid, params, 3));
}

/**
 * The same as the first method, just with only two
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param param1     Substitution string for $0.
 * @param param2     Substitution string for $1.
 * @returns          The translated string.
 */
string I18N::i18n    
		( 
			const string &textdomain, 
			const string &msgid, 
			const string &param1, 
			const string &param2 
		)
{
	string params[] = { param1, param2 };

	return (I18N::i18n (textdomain, msgid, params, 2));
}

/**
 * The same as the first method, just with only one
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @param param      Substitution string for $0.
 * @returns          The translated string.
 */
string I18N::i18n (const string &textdomain, const string &msgid, const string &param)
{
	string params[] = { param };

	return (I18N::i18n (textdomain, msgid, params, 1));
}

/**
 * The same as the first method, just with no
 * parameters.
 * Just for your convenience.
 *
 * @param textdomain The textdomain that should be used.
 * @param msgid      The msgid that should be translated.
 * @returns          The translated string.
 */
string I18N::i18n (const string &textdomain, const string &msgid)
{
	return (I18N::i18n (textdomain, msgid, NULL, 0));
}