File: hdate_strings.c

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/*
 * hdate_strings.c: convert libhdate internal numbers to readable hebrew strings.
 *
 * Authors:
 *   Yaacov Zamir <kzamir@walla.co.il>
 *   Andreas J. Guelzow <aguelzow@taliesin.ca>
 *
 * 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.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses/>.
 */

#include <gnumeric-config.h>
#include <gnumeric.h>
#include <gnm-i18n.h>
#include <stdlib.h>
#include <string.h>

#include "hdate.h"

#define UNICODE_GERESH "\xd7\xb3"
#define UNICODE_GERSHAYIM "\xd7\xb4"

/**
 @brief convert an integer to hebrew string UTF-8 (logical)

 @param n The int to convert
 @attention ( 0 < n < 10000)
 @warning uses a static string, so output should be copied away.
*/
void
hdate_int_to_hebrew (GString *res, int n)
{
	int oldlen = res->len;
	int length;
	static const char *digits[3][10] = {
		{" ", "א", "ב", "ג", "ד", "ה", "ו", "ז", "ח", "ט"},
		{"ט", "י", "כ", "ל", "מ", "נ", "ס", "ע", "פ", "צ"},
		{" ", "ק", "ר", "ש", "ת"}
	};

	/* sanity checks */
	if (n < 1 || n > 10000)
	{
		return;
	}

	if (n >= 1000)
	{
		g_string_append (res, digits[0][n / 1000]);
		n %= 1000;
	}
	while (n >= 400)
	{
		g_string_append (res, digits[2][4]);
		n -= 400;
	}
	if (n >= 100)
	{
		g_string_append (res, digits[2][n / 100]);
		n %= 100;
	}
	if (n >= 10)
	{
		if (n == 15 || n == 16)
			n -= 9;
		g_string_append (res, digits[1][n / 10]);
		n %= 10;
	}
	if (n > 0)
		g_string_append (res, digits[0][n]);

	length = g_utf8_strlen (res->str + oldlen, -1);

	/* Note: length is in characters */

	/* add the ' and " to hebrew numbers */
	if (length < 2)
		g_string_append (res, UNICODE_GERESH);
	else
		g_string_insert
			(res,
			 g_utf8_offset_to_pointer (res->str + oldlen,
						   length - 1) - res->str,
			 UNICODE_GERSHAYIM);
}

/**
 @brief Return a static string, with name of hebrew month.

 @param month The number of the month 0..13 (0 - tishre, 12 - adar 1, 13 - adar 2).
 @warning uses a static string, so output should be copied away.
*/
const char *
hdate_get_hebrew_month_name (int month)
{
	static const char *heb_months[] = {
		/* We are using the spellings as included in the */
		/* Merriam-Webster dictionary */
		/* xgettext: Tishri to Adar II are transliterations of the */
		/* xgettext: hebrew months' names using Latin characters.  */
		N_("Tishri"), N_("Heshwan"), N_("Kislev"),
		N_("Tebet"), N_("Shebat"), N_("Adar"),
		N_("Nisan"), N_("Iyar"), N_("Sivan"), N_("Tammuz"),
		N_("Ab"), N_("Elul"), N_("Adar I"), N_("Adar II")
	};

	if (month < 0 || month > 13)
		return NULL;

	return heb_months[month];
}

/**
 @brief Return a static string, with name of hebrew month in hebrew.

 @param month The number of the month 0..13 (0 - tishre, 12 - adar 1, 13 - adar 2).
 @warning uses a static string, so output should be copied away.
*/
const char *
hdate_get_hebrew_month_name_heb (int month)
{
	static const char *h_heb_months[] = {
		"ת\xd6\xbc\xd6\xb4ש\xd7\x81\xd6\xb0ר\xd6\xb5י", /* Tishri */
		"ח\xd6\xb6ש\xd7\x81\xd6\xb0ו\xd7\x87ן",         /* Heshwan */
		"כ\xd6\xbc\xd6\xb4ס\xd6\xb0ל\xd6\xb5ו",         /* Kislev */
		"ט\xd6\xb5ב\xd6\xb5ת",                          /* Tebet */
		"ש\xd7\x81\xd6\xb0ב\xd7\x87ט",                  /* Shebat */
		"א\xd6\xb7ד\xd7\x87ר",                          /* Adar */
		"נ\xd6\xb4יס\xd7\x87ן",                         /* Nissan */
		"א\xd6\xb4י\xd7\x87יר",                         /* Iyar */
		"ס\xd6\xb4יו\xd7\x87ן",                         /* Sivan */
		"ת\xd6\xbc\xd7\x87מו\xd6\xbcז",                 /* Tammuz */
		"א\xd6\xb8ב",                                   /* Ab */
		"א\xd6\xb1לו\xd6\xbcל",                         /* Elul */
		"א\xd6\xb7ד\xd7\x87ר א\xd7\xb3",                /* Adar I*/
		"א\xd6\xb7ד\xd7\x87ר ב\xd7\xb3"                 /* Adar II*/
	};

	if (month < 0 || month > 13)
		return NULL;

	return h_heb_months[month];
}