From 431ede38c7e16f4e0b89d9841f113f92ee9fc491 Mon Sep 17 00:00:00 2001
From: nobody <nobody@localhost>
Date: Sat, 3 May 2003 11:02:31 +0000
Subject: This commit was manufactured by cvs2svn to create tag
 'GTKHTML_3_0_8'.

svn path=/tags/GTKHTML_3_0_8/; revision=21086
---
 camel/broken-date-parser.c | 532 ---------------------------------------------
 1 file changed, 532 deletions(-)
 delete mode 100644 camel/broken-date-parser.c

(limited to 'camel/broken-date-parser.c')

diff --git a/camel/broken-date-parser.c b/camel/broken-date-parser.c
deleted file mode 100644
index 7dcdf1e61e..0000000000
--- a/camel/broken-date-parser.c
+++ /dev/null
@@ -1,532 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- *  Authors: Jeffrey Stedfast <fejj@ximian.com>
- *
- *  Copyright 2000 Ximian, Inc. (www.ximian.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * 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, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- *
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <glib.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <sys/time.h>
-#include <time.h>
-
-#include "broken-date-parser.h"
-#include "e-time-utils.h"
-
-#define d(x) x
-
-#define NUMERIC_CHARS          "1234567890"
-#define WEEKDAY_CHARS          "SundayMondayTuesdayWednesdayThursdayFridaySaturday"
-#define MONTH_CHARS            "JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember"
-#define TIMEZONE_ALPHA_CHARS   "UTCGMTESTEDTCSTCDTMSTPSTPDTZAMNY()"
-#define TIMEZONE_NUMERIC_CHARS "-+1234567890"
-#define TIME_CHARS             "1234567890:"
-
-#define DATE_TOKEN_NON_NUMERIC          (1 << 0)
-#define DATE_TOKEN_NON_WEEKDAY          (1 << 1)
-#define DATE_TOKEN_NON_MONTH            (1 << 2)
-#define DATE_TOKEN_NON_TIME             (1 << 3)
-#define DATE_TOKEN_HAS_COLON            (1 << 4)
-#define DATE_TOKEN_NON_TIMEZONE_ALPHA   (1 << 5)
-#define DATE_TOKEN_NON_TIMEZONE_NUMERIC (1 << 6)
-#define DATE_TOKEN_HAS_SIGN             (1 << 7)
-
-static unsigned char datetok_table[256] = {
-        128,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111, 79, 79,111,175,111,175,111,111,
-         38, 38, 38, 38, 38, 38, 38, 38, 38, 38,119,111,111,111,111,111,
-        111, 75,111, 79, 75, 79,105, 79,111,111,107,111,111, 73, 75,107,
-         79,111,111, 73, 77, 79,111,109,111, 79, 79,111,111,111,111,111,
-        111,105,107,107,109,105,111,107,105,105,111,111,107,107,105,105,
-        107,111,105,105,105,105,107,111,111,105,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-        111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,
-};
-
-/* hrm, is there a library for this shit? */
-static struct {
-	char *name;
-	int offset;
-} tz_offsets [] = {
-	{ "UT", 0 },
-	{ "GMT", 0 },
-	{ "EST", -500 },	/* these are all US timezones.  bloody yanks */
-	{ "EDT", -400 },
-	{ "CST", -600 },
-	{ "CDT", -500 },
-	{ "MST", -700 },
-	{ "MDT", -600 },
-	{ "PST", -800 },
-	{ "PDT", -700 },
-	{ "Z", 0 },
-	{ "A", -100 },
-	{ "M", -1200 },
-	{ "N", 100 },
-	{ "Y", 1200 },
-};
-
-static char *tm_months[] = {
-	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
-	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-
-static char *tm_days[] = {
-	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
-
-
-struct _date_token {
-	struct _date_token *next;
-	const unsigned char *start;
-	unsigned int len;
-	unsigned int mask;
-};
-
-/* This is where it gets ugly... */
-static struct _date_token *
-datetok (const char *date)
-{
-	struct _date_token *tokens = NULL, *token, *tail = (struct _date_token *) &tokens;
-	const unsigned char *start, *end;
-	unsigned int mask;
-	
-	start = date;
-	while (*start) {
-		/* kill leading whitespace */
-		while (*start && isspace ((int) *start))
-			start++;
-		
-		if (*start == '\0')
-			break;
-		
-		mask = datetok_table[*start];
-		
-		/* find the end of this token */
-		end = start + 1;
-		while (*end && !strchr ("-/,\t\r\n ", *end))
-			mask |= datetok_table[*end++];
-		
-		if (end != start) {
-			token = g_malloc (sizeof (struct _date_token));
-			token->next = NULL;
-			token->start = start;
-			token->len = end - start;
-			token->mask = mask;
-			
-			tail->next = token;
-			tail = token;
-		}
-		
-		if (*end)
-			start = end + 1;
-		else
-			break;
-	}
-	
-	return tokens;
-}
-
-static int
-decode_int (const unsigned char *in, unsigned int inlen)
-{
-	register const unsigned char *inptr;
-	const unsigned char *inend;
-	int sign = 1, val = 0;
-	
-	inptr = in;
-	inend = in + inlen;
-	
-	if (*inptr == '-') {
-		sign = -1;
-		inptr++;
-	} else if (*inptr == '+')
-		inptr++;
-	
-	for ( ; inptr < inend; inptr++) {
-		if (!isdigit ((int) *inptr))
-			return  -1;
-		else
-			val = (val * 10) + (*inptr - '0');
-	}
-	
-	val *= sign;
-	
-	return val;
-}
-
-static int
-get_wday (const unsigned char *in, unsigned int inlen)
-{
-	int wday;
-	
-	if (inlen < 3)
-		return -1;
-	
-	for (wday = 0; wday < 7; wday++)
-		if (!strncasecmp (in, tm_days[wday], 3))
-			return wday;
-	
-	return -1;  /* unknown week day */
-}
-
-static int
-get_mday (const unsigned char *in, unsigned int inlen)
-{
-	int mday;
-	
-	mday = decode_int (in, inlen);
-	
-	if (mday < 0 || mday > 31)
-		mday = -1;
-	
-	return mday;
-}
-
-static int
-get_month (const unsigned char *in, unsigned int inlen)
-{
-	int i;
-	
-	if (inlen < 3)
-		return -1;
-	
-	for (i = 0; i < 12; i++)
-		if (!strncasecmp (in, tm_months[i], 3))
-			return i;
-	
-	return -1;  /* unknown month */
-}
-
-static int
-get_year (const unsigned char *in, unsigned int inlen)
-{
-	int year;
-	
-	year = decode_int (in, inlen);
-	if (year == -1)
-		return -1;
-	
-	if (year < 100)
-		year += (year < 70) ? 2000 : 1900;
-	
-	if (year < 1969)
-		return -1;
-	
-	return year;
-}
-
-static gboolean
-get_time (const unsigned char *in, unsigned int inlen, int *hour, int *min, int *sec)
-{
-	register const unsigned char *inptr;
-	const unsigned char *inend;
-	int *val, colons = 0;
-	
-	*hour = *min = *sec = 0;
-	
-	inend = in + inlen;
-	val = hour;
-	for (inptr = in; inptr < inend; inptr++) {
-		if (*inptr == ':') {
-			colons++;
-			switch (colons) {
-			case 1:
-				val = min;
-				break;
-			case 2:
-				val = sec;
-				break;
-			default:
-				return FALSE;
-			}
-		} else if (!isdigit ((int) *inptr))
-			return FALSE;
-		else
-			*val = (*val * 10) + (*inptr - '0');
-	}
-	
-	return TRUE;
-}
-
-static int
-get_tzone (struct _date_token **token)
-{
-	const unsigned char *inptr, *inend;
-	unsigned int inlen;
-	int i, t;
-	
-	for (i = 0; *token && i < 2; *token = (*token)->next, i++) {
-		inptr = (*token)->start;
-		inlen = (*token)->len;
-		inend = inptr + inlen;
-		
-		if (*inptr == '+' || *inptr == '-') {
-			t = decode_int (inptr, inlen);
-			if (t < -1200 || t > 1200)
-				return -1;
-			
-			return t;
-		} else {
-			if (*inptr == '(') {
-				inptr++;
-				if (*(inend - 1) == ')')
-					inlen -= 2;
-				else
-					inlen--;
-			}
-			
-			for (t = 0; t < 15; t++) {
-				unsigned int len = strlen (tz_offsets[t].name);
-				
-				if (len != inlen)
-					continue;
-				
-				if (!strncmp (inptr, tz_offsets[t].name, len))
-					return tz_offsets[t].offset;
-			}
-		}
-	}
-	
-	return -1;
-}
-
-/* This is where things get interesting... ;-) */
-
-#define date_token_mask(t)  (((struct _date_token *) t)->mask)
-#define is_numeric(t)       ((date_token_mask (t) & DATE_TOKEN_NON_NUMERIC) == 0)
-#define is_weekday(t)       ((date_token_mask (t) & DATE_TOKEN_NON_WEEKDAY) == 0)
-#define is_month(t)         ((date_token_mask (t) & DATE_TOKEN_NON_MONTH) == 0)
-#define is_time(t)          (((date_token_mask (t) & DATE_TOKEN_NON_TIME) == 0) && (date_token_mask (t) & DATE_TOKEN_HAS_COLON))
-#define is_tzone_alpha(t)   ((date_token_mask (t) & DATE_TOKEN_NON_TIMEZONE_ALPHA) == 0)
-#define is_tzone_numeric(t) (((date_token_mask (t) & DATE_TOKEN_NON_TIMEZONE_NUMERIC) == 0) && (date_token_mask (t) & DATE_TOKEN_HAS_SIGN))
-#define is_tzone(t)         (is_tzone_alpha (t) || is_tzone_numeric (t))
-
-static time_t
-decode_broken_date (struct _date_token *tokens, int *tzone)
-{
-	gboolean got_wday, got_month, got_tzone;
-	int hour, min, sec, offset, n;
-	struct _date_token *token;
-	struct tm tm;
-	time_t time;
-	
-	memset ((void *) &tm, 0, sizeof (struct tm));
-	got_wday = got_month = got_tzone = FALSE;
-	offset = 0;
-	
-	token = tokens;
-	while (token) {
-		if (is_weekday (token) && !got_wday) {
-			if ((n = get_wday (token->start, token->len)) != -1) {
-				d(printf ("weekday; "));
-				got_wday = TRUE;
-				tm.tm_wday = n;
-				goto next_token;
-			}
-		}
-		
-		if (is_month (token) && !got_month) {
-			if ((n = get_month (token->start, token->len)) != -1) {
-				d(printf ("month; "));
-				got_month = TRUE;
-				tm.tm_mon = n;
-				goto next_token;
-			}
-		}
-		
-		if (is_time (token) && !tm.tm_hour && !tm.tm_min && !tm.tm_sec) {
-			if (get_time (token->start, token->len, &hour, &min, &sec)) {
-				d(printf ("time; "));
-				tm.tm_hour = hour;
-				tm.tm_min = min;
-				tm.tm_sec = sec;
-				goto next_token;
-			}
-		}
-		
-		if (is_tzone (token) && !got_tzone) {
-			struct _date_token *t = token;
-			
-			if ((n = get_tzone (&t)) != -1) {
-				d(printf ("tzone; "));
-				got_tzone = TRUE;
-				offset = n;
-				goto next_token;
-			}
-		}
-		
-		if (is_numeric (token)) {
-			if (token->len == 4 && !tm.tm_year) {
-				if ((n = get_year (token->start, token->len)) != -1) {
-					d(printf ("year; "));
-					tm.tm_year = n - 1900;
-					goto next_token;
-				}
-			} else {
-				if (!got_month && !got_wday && token->next && is_numeric (token->next)) {
-					d(printf ("mon; "));
-					n = decode_int (token->start, token->len);
-					got_month = TRUE;
-					tm.tm_mon = n - 1;
-					goto next_token;
-				} else if (!tm.tm_mday && (n = get_mday (token->start, token->len)) != -1) {
-					d(printf ("mday; "));
-					tm.tm_mday = n;
-					goto next_token;
-				} else if (!tm.tm_year) {
-					d(printf ("2-digit year; "));
-					n = get_year (token->start, token->len);
-					tm.tm_year = n - 1900;
-					goto next_token;
-				}
-			}
-		}
-		
-		d(printf ("???; "));
-		
-	next_token:
-		
-		token = token->next;
-	}
-	
-	d(printf ("\n"));
-	
-	time = e_mktime_utc (&tm);
-	
-	/* time is now GMT of the time we want, but not offset by the timezone ... */
-	
-	/* this should convert the time to the GMT equiv time */
-	time -= ((offset / 100) * 60 * 60) + (offset % 100) * 60;
-	
-	if (tzone)
-		*tzone = offset;
-	
-	return time;
-}
-
-
-/**
- * parse_broken_date:
- * @datestr: input date string
- * @saveoffset:
- *
- * Decodes the rfc822/broken date string and saves the GMT offset into
- * @saveoffset if non-NULL.
- *
- * Returns the time_t representation of the date string specified by
- * @in. If 'saveoffset' is non-NULL, the value of the timezone offset
- * will be stored.
- **/
-time_t
-parse_broken_date (const char *datestr, int *saveoffset)
-{
-	struct _date_token *token, *tokens;
-	time_t date;
-	
-	tokens = datetok (datestr);
-	
-	date = decode_broken_date (tokens, saveoffset);
-	
-	/* cleanup */
-	while (tokens) {
-		token = tokens;
-		tokens = tokens->next;
-		g_free (token);
-	}
-	
-	return date;
-}
-
-
-
-
-
-#ifdef DATETOK_STANDALONE
-
-static void
-table_init ()
-{
-	int i;
-	
-	memset (datetok_table, 0, sizeof (datetok_table));
-	
-	for (i = 0; i < 256; i++) {
-		if (!strchr (NUMERIC_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_NUMERIC;
-		
-		if (!strchr (WEEKDAY_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_WEEKDAY;
-		
-		if (!strchr (MONTH_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_MONTH;
-		
-		if (!strchr (TIME_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_TIME;
-		
-		if (!strchr (TIMEZONE_ALPHA_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_TIMEZONE_ALPHA;
-		
-		if (!strchr (TIMEZONE_NUMERIC_CHARS, i))
-			datetok_table[i] |= DATE_TOKEN_NON_TIMEZONE_NUMERIC;
-		
-		if (((char) i) == ':')
-			datetok_table[i] |= DATE_TOKEN_HAS_COLON;
-		
-		if (strchr ("+-", i))
-			datetok_table[i] |= DATE_TOKEN_HAS_SIGN;
-	}
-	
-	printf ("static unsigned int datetok_table[256] = {");
-	for (i = 0; i < 256; i++) {
-		if (i % 16 == 0)
-			printf ("\n\t");
-		printf ("%3d,", datetok_table[i]);
-	}
-	printf ("\n};\n");
-}
-
-
-int main (int argc, char **argv)
-{
-	time_t date;
-	int offset;
-	
-	/*table_init ();*/
-	
-	date = parse_broken_date (argv[1], &offset);
-	printf ("%d; %d\n", date, offset);
-	
-	return 0;
-}
-
-#endif /* DATETOK_STANDALONE */
-- 
cgit