shared_source/c_tcl_base_7_5_w_mods/strftime.c

/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tcl_base/strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $ */

/* 
 * strftime.c --
 *
 *      This file contains a modified version of the BSD 4.4 strftime
 *      function.
 *
 * This file is a modified version of the strftime.c file from the BSD 4.4
 * source.  See the copyright notice below for details on redistribution
 * restrictions.  The "license.terms" file does not apply to this file.
 *
 * RCS: @(#) $Id: strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $
 */

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS)
static char *rcsid = "$Id: strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $";
#endif /* LIBC_SCCS */

#include <time.h>
#include <string.h>
#include <locale.h>
#include "tclInt.h"
#include "tclPort.h"

#define TM_YEAR_BASE   1900
#define IsLeapYear(x)   ((x % 4 == 0) && (x % 100 != 0 || x % 400 == 0))

typedef struct {
    const char *abday[7];
    const char *day[7];
    const char *abmon[12];
    const char *mon[12];
    const char *am_pm[2];
    const char *d_t_fmt;
    const char *d_fmt;
    const char *t_fmt;
    const char *t_fmt_ampm;
} _TimeLocale;
 
static const _TimeLocale _DefaultTimeLocale = 
{
    {
        "Sun","Mon","Tue","Wed","Thu","Fri","Sat",
    },
    {
        "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
        "Friday", "Saturday"
    },
    {
        "Jan", "Feb", "Mar", "Apr", "May", "Jun",
        "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
    },
    {
        "January", "February", "March", "April", "May", "June", "July",
        "August", "September", "October", "November", "December"
    },
    {
        "AM", "PM"
    },
    "%a %b %d %H:%M:%S %Y",
    "%m/%d/%y",
    "%H:%M:%S",
    "%I:%M:%S %p"
};

static const _TimeLocale *_CurrentTimeLocale = &_DefaultTimeLocale;

static size_t gsize;
static char *pt;
static int               _add _ANSI_ARGS_((const char* str));
static int              _conv _ANSI_ARGS_((int n, int digits, int pad));
static int              _secs _ANSI_ARGS_((const struct tm *t));
static size_t           _fmt _ANSI_ARGS_((const char *format,
                            const struct tm *t));

size_t
TclpStrftime(s, maxsize, format, t)
    char *s;
    size_t maxsize;
    const char *format;
    const struct tm *t;
{
    if (format[0] == '%' && format[1] == 'Q') {
        /* Format as a stardate */
        sprintf(s, "Stardate %2d%03d.%01d",
                (((t->tm_year + TM_YEAR_BASE) + 377) - 2323),
                (((t->tm_yday + 1) * 1000) /
                        (365 + IsLeapYear((t->tm_year + TM_YEAR_BASE)))),
                (((t->tm_hour * 60) + t->tm_min)/144));
        return(strlen(s));
    }

    tzset();

    pt = s;
    if ((gsize = maxsize) < 1)
        return(0);
    if (_fmt(format, t)) {
        *pt = '\0';
        return(maxsize - gsize);
    }
    return(0);
}

#define SUN_WEEK(t)     (((t)->tm_yday + 7 - \
                                ((t)->tm_wday)) / 7)
#define MON_WEEK(t)     (((t)->tm_yday + 7 - \
                                ((t)->tm_wday ? (t)->tm_wday - 1 : 6)) / 7)

static size_t
_fmt(format, t)
    const char *format;
    const struct tm *t;
{
    for (; *format; ++format) {
        if (*format == '%') {
            ++format;
            if (*format == 'E') {
                                /* Alternate Era */
                ++format;
            } else if (*format == 'O') {
                                /* Alternate numeric symbols */
                ++format;
            }
            switch(*format) {
                case '\0':
                    --format;
                    break;
                case 'A':
                    if (t->tm_wday < 0 || t->tm_wday > 6)
                        return(0);
                    if (!_add(_CurrentTimeLocale->day[t->tm_wday]))
                        return(0);
                    continue;
                case 'a':
                    if (t->tm_wday < 0 || t->tm_wday > 6)
                        return(0);
                    if (!_add(_CurrentTimeLocale->abday[t->tm_wday]))
                        return(0);
                    continue;
                case 'B':
                    if (t->tm_mon < 0 || t->tm_mon > 11)
                        return(0);
                    if (!_add(_CurrentTimeLocale->mon[t->tm_mon]))
                        return(0);
                    continue;
                case 'b':
                case 'h':
                    if (t->tm_mon < 0 || t->tm_mon > 11)
                        return(0);
                    if (!_add(_CurrentTimeLocale->abmon[t->tm_mon]))
                        return(0);
                    continue;
                case 'C':
                    if (!_conv((t->tm_year + TM_YEAR_BASE) / 100,
                            2, '0'))
                        return(0);
                    continue;
                case 'c':
                    if (!_fmt(_CurrentTimeLocale->d_t_fmt, t))
                        return(0);
                    continue;
                case 'D':
                    if (!_fmt("%m/%d/%y", t))
                        return(0);
                    continue;
                case 'd':
                    if (!_conv(t->tm_mday, 2, '0'))
                        return(0);
                    continue;
                case 'e':
                    if (!_conv(t->tm_mday, 2, ' '))
                        return(0);
                    continue;
                case 'H':
                    if (!_conv(t->tm_hour, 2, '0'))
                        return(0);
                    continue;
                case 'I':
                    if (!_conv(t->tm_hour % 12 ?
                            t->tm_hour % 12 : 12, 2, '0'))
                        return(0);
                    continue;
                case 'j':
                    if (!_conv(t->tm_yday + 1, 3, '0'))
                        return(0);
                    continue;
                case 'k':
                    if (!_conv(t->tm_hour, 2, ' '))
                        return(0);
                    continue;
                case 'l':
                    if (!_conv(t->tm_hour % 12 ?
                            t->tm_hour % 12: 12, 2, ' '))
                        return(0);
                    continue;
                case 'M':
                    if (!_conv(t->tm_min, 2, '0'))
                        return(0);
                    continue;
                case 'm':
                    if (!_conv(t->tm_mon + 1, 2, '0'))
                        return(0);
                    continue;
                case 'n':
                    if (!_add("\n"))
                        return(0);
                    continue;
                case 'p':
                    if (!_add(_CurrentTimeLocale->am_pm[t->tm_hour >= 12]))
                        return(0);
                    continue;
                case 'R':
                    if (!_fmt("%H:%M", t))
                        return(0);
                    continue;
                case 'r':
                    if (!_fmt(_CurrentTimeLocale->t_fmt_ampm, t))
                        return(0);
                    continue;
                case 'S':
                    if (!_conv(t->tm_sec, 2, '0'))
                        return(0);
                    continue;
                case 's':
                    if (!_secs(t))
                        return(0);
                    continue;
                case 'T':
                    if (!_fmt("%H:%M:%S", t))
                        return(0);
                    continue;
                case 't':
                    if (!_add("\t"))
                        return(0);
                    continue;
                case 'U':
                    if (!_conv(SUN_WEEK(t), 2, '0'))
                        return(0);
                    continue;
                case 'u':
                    if (!_conv(t->tm_wday ? t->tm_wday : 7, 1, '0'))
                        return(0);
                    continue;
                case 'V':
                {
                                /* ISO 8601 Week Of Year:
                                   If the week (Monday - Sunday) containing
                                   January 1 has four or more days in the new 
                                   year, then it is week 1; otherwise it is 
                                   week 53 of the previous year and the next
                                   week is week one. */
                                 
                    int week = MON_WEEK(t);

                    int days = (((t)->tm_yday + 7 - \
                            ((t)->tm_wday ? (t)->tm_wday - 1 : 6)) % 7);


                    if (days >= 4) {
                        week++;
                    } else if (week == 0) {
                        week = 53;
                    }

                    if (!_conv(week, 2, '0'))
                        return(0);
                    continue;
                }
                case 'W':
                    if (!_conv(MON_WEEK(t), 2, '0'))
                        return(0);
                    continue;
                case 'w':
                    if (!_conv(t->tm_wday, 1, '0'))
                        return(0);
                    continue;
                case 'x':
                    if (!_fmt(_CurrentTimeLocale->d_fmt, t))
                        return(0);
                    continue;
                case 'X':
                    if (!_fmt(_CurrentTimeLocale->t_fmt, t))
                        return(0);
                    continue;
                case 'y':
                    if (!_conv((t->tm_year + TM_YEAR_BASE) % 100,
                            2, '0'))
                        return(0);
                    continue;
                case 'Y':
                    if (!_conv((t->tm_year + TM_YEAR_BASE), 4, '0'))
                        return(0);
                    continue;
#ifndef MAC_TCL
                case 'Z': {
                    char *name = TclpGetTZName(t->tm_isdst);
                    if (name && !_add(name)) {
                        return 0;
                    }
                    continue;
                }
#endif
                case '%':
                    /*
                     * X311J/88-090 (4.12.3.5): if conversion char is
                     * undefined, behavior is undefined.  Print out the
                     * character itself as printf(3) does.
                     */
                default:
                    break;
            }
        }
        if (!gsize--)
            return(0);
        *pt++ = *format;
    }
    return(gsize);
}

static int
_secs(t)
    const struct tm *t;
{
    static char buf[15];
    register time_t s;
    register char *p;
    struct tm tmp;

    /* Make a copy, mktime(3) modifies the tm struct. */
    tmp = *t;
    s = mktime(&tmp);
    for (p = buf + sizeof(buf) - 2; s > 0 && p > buf; s /= 10)
        *p-- = (char)(s % 10 + '0');
    return(_add(++p));
}

static int
_conv(n, digits, pad)
    int n, digits;
    int pad;
{
    static char buf[10];
    register char *p;

    for (p = buf + sizeof(buf) - 2; n > 0 && p > buf; n /= 10, --digits)
        *p-- = (char)(n % 10 + '0');
    while (p > buf && digits-- > 0)
        *p-- = (char) pad;
    return(_add(++p));
}

static int
_add(str)
    const char *str;
{
    for (;; ++pt, --gsize) {
        if (!gsize)
            return(0);
        if (!(*pt = *str++))
            return(1);
    }
}

/* $History: strftime.c $
 * 
 * *****************  Version 1  *****************
 * User: Dtashley     Date: 1/02/01    Time: 12:17a
 * Created in $/IjuScripter, IjuConsole/Source/Tcl Base
 * Initial check-in.
 */ 

/* End of STRFTIME.C */
1	dashley	25	/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tcl_base/strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $ */
2
3			/*
4			* strftime.c --
5			*
6			* This file contains a modified version of the BSD 4.4 strftime
7			* function.
8			*
9			* This file is a modified version of the strftime.c file from the BSD 4.4
10			* source. See the copyright notice below for details on redistribution
11			* restrictions. The "license.terms" file does not apply to this file.
12			*
13			* RCS: @(#) $Id: strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $
14			*/
15
16			/*
17			* Copyright (c) 1989 The Regents of the University of California.
18			* All rights reserved.
19			*
20			* Redistribution and use in source and binary forms, with or without
21			* modification, are permitted provided that the following conditions
22			* are met:
23			* 1. Redistributions of source code must retain the above copyright
24			* notice, this list of conditions and the following disclaimer.
25			* 2. Redistributions in binary form must reproduce the above copyright
26			* notice, this list of conditions and the following disclaimer in the
27			* documentation and/or other materials provided with the distribution.
28			* 3. All advertising materials mentioning features or use of this software
29			* must display the following acknowledgement:
30			* This product includes software developed by the University of
31			* California, Berkeley and its contributors.
32			* 4. Neither the name of the University nor the names of its contributors
33			* may be used to endorse or promote products derived from this software
34			* without specific prior written permission.
35			*
36			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
37			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
39			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
40			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
41			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
42			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
44			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
45			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46			* SUCH DAMAGE.
47			*/
48
49			#if defined(LIBC_SCCS)
50			static char *rcsid = "$Id: strftime.c,v 1.1.1.1 2001/06/13 04:32:38 dtashley Exp $";
51			#endif /* LIBC_SCCS */
52
53			#include <time.h>
54			#include <string.h>
55			#include <locale.h>
56			#include "tclInt.h"
57			#include "tclPort.h"
58
59			#define TM_YEAR_BASE 1900
60			#define IsLeapYear(x) ((x % 4 == 0) && (x % 100 != 0 \|\| x % 400 == 0))
61
62			typedef struct {
63			const char *abday[7];
64			const char *day[7];
65			const char *abmon[12];
66			const char *mon[12];
67			const char *am_pm[2];
68			const char *d_t_fmt;
69			const char *d_fmt;
70			const char *t_fmt;
71			const char *t_fmt_ampm;
72			} _TimeLocale;
73
74			static const _TimeLocale _DefaultTimeLocale =
75			{
76			{
77			"Sun","Mon","Tue","Wed","Thu","Fri","Sat",
78			},
79			{
80			"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
81			"Friday", "Saturday"
82			},
83			{
84			"Jan", "Feb", "Mar", "Apr", "May", "Jun",
85			"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
86			},
87			{
88			"January", "February", "March", "April", "May", "June", "July",
89			"August", "September", "October", "November", "December"
90			},
91			{
92			"AM", "PM"
93			},
94			"%a %b %d %H:%M:%S %Y",
95			"%m/%d/%y",
96			"%H:%M:%S",
97			"%I:%M:%S %p"
98			};
99
100			static const _TimeLocale *_CurrentTimeLocale = &_DefaultTimeLocale;
101
102			static size_t gsize;
103			static char *pt;
104			static int _add _ANSI_ARGS_((const char* str));
105			static int _conv _ANSI_ARGS_((int n, int digits, int pad));
106			static int _secs _ANSI_ARGS_((const struct tm *t));
107			static size_t _fmt _ANSI_ARGS_((const char *format,
108			const struct tm *t));
109
110			size_t
111			TclpStrftime(s, maxsize, format, t)
112			char *s;
113			size_t maxsize;
114			const char *format;
115			const struct tm *t;
116			{
117			if (format[0] == '%' && format[1] == 'Q') {
118			/* Format as a stardate */
119			sprintf(s, "Stardate %2d%03d.%01d",
120			(((t->tm_year + TM_YEAR_BASE) + 377) - 2323),
121			(((t->tm_yday + 1) * 1000) /
122			(365 + IsLeapYear((t->tm_year + TM_YEAR_BASE)))),
123			(((t->tm_hour * 60) + t->tm_min)/144));
124			return(strlen(s));
125			}
126
127			tzset();
128
129			pt = s;
130			if ((gsize = maxsize) < 1)
131			return(0);
132			if (_fmt(format, t)) {
133			*pt = '\0';
134			return(maxsize - gsize);
135			}
136			return(0);
137			}
138
139			#define SUN_WEEK(t) (((t)->tm_yday + 7 - \
140			((t)->tm_wday)) / 7)
141			#define MON_WEEK(t) (((t)->tm_yday + 7 - \
142			((t)->tm_wday ? (t)->tm_wday - 1 : 6)) / 7)
143
144			static size_t
145			_fmt(format, t)
146			const char *format;
147			const struct tm *t;
148			{
149			for (; *format; ++format) {
150			if (*format == '%') {
151			++format;
152			if (*format == 'E') {
153			/* Alternate Era */
154			++format;
155			} else if (*format == 'O') {
156			/* Alternate numeric symbols */
157			++format;
158			}
159			switch(*format) {
160			case '\0':
161			--format;
162			break;
163			case 'A':
164			if (t->tm_wday < 0 \|\| t->tm_wday > 6)
165			return(0);
166			if (!_add(_CurrentTimeLocale->day[t->tm_wday]))
167			return(0);
168			continue;
169			case 'a':
170			if (t->tm_wday < 0 \|\| t->tm_wday > 6)
171			return(0);
172			if (!_add(_CurrentTimeLocale->abday[t->tm_wday]))
173			return(0);
174			continue;
175			case 'B':
176			if (t->tm_mon < 0 \|\| t->tm_mon > 11)
177			return(0);
178			if (!_add(_CurrentTimeLocale->mon[t->tm_mon]))
179			return(0);
180			continue;
181			case 'b':
182			case 'h':
183			if (t->tm_mon < 0 \|\| t->tm_mon > 11)
184			return(0);
185			if (!_add(_CurrentTimeLocale->abmon[t->tm_mon]))
186			return(0);
187			continue;
188			case 'C':
189			if (!_conv((t->tm_year + TM_YEAR_BASE) / 100,
190			2, '0'))
191			return(0);
192			continue;
193			case 'c':
194			if (!_fmt(_CurrentTimeLocale->d_t_fmt, t))
195			return(0);
196			continue;
197			case 'D':
198			if (!_fmt("%m/%d/%y", t))
199			return(0);
200			continue;
201			case 'd':
202			if (!_conv(t->tm_mday, 2, '0'))
203			return(0);
204			continue;
205			case 'e':
206			if (!_conv(t->tm_mday, 2, ' '))
207			return(0);
208			continue;
209			case 'H':
210			if (!_conv(t->tm_hour, 2, '0'))
211			return(0);
212			continue;
213			case 'I':
214			if (!_conv(t->tm_hour % 12 ?
215			t->tm_hour % 12 : 12, 2, '0'))
216			return(0);
217			continue;
218			case 'j':
219			if (!_conv(t->tm_yday + 1, 3, '0'))
220			return(0);
221			continue;
222			case 'k':
223			if (!_conv(t->tm_hour, 2, ' '))
224			return(0);
225			continue;
226			case 'l':
227			if (!_conv(t->tm_hour % 12 ?
228			t->tm_hour % 12: 12, 2, ' '))
229			return(0);
230			continue;
231			case 'M':
232			if (!_conv(t->tm_min, 2, '0'))
233			return(0);
234			continue;
235			case 'm':
236			if (!_conv(t->tm_mon + 1, 2, '0'))
237			return(0);
238			continue;
239			case 'n':
240			if (!_add("\n"))
241			return(0);
242			continue;
243			case 'p':
244			if (!_add(_CurrentTimeLocale->am_pm[t->tm_hour >= 12]))
245			return(0);
246			continue;
247			case 'R':
248			if (!_fmt("%H:%M", t))
249			return(0);
250			continue;
251			case 'r':
252			if (!_fmt(_CurrentTimeLocale->t_fmt_ampm, t))
253			return(0);
254			continue;
255			case 'S':
256			if (!_conv(t->tm_sec, 2, '0'))
257			return(0);
258			continue;
259			case 's':
260			if (!_secs(t))
261			return(0);
262			continue;
263			case 'T':
264			if (!_fmt("%H:%M:%S", t))
265			return(0);
266			continue;
267			case 't':
268			if (!_add("\t"))
269			return(0);
270			continue;
271			case 'U':
272			if (!_conv(SUN_WEEK(t), 2, '0'))
273			return(0);
274			continue;
275			case 'u':
276			if (!_conv(t->tm_wday ? t->tm_wday : 7, 1, '0'))
277			return(0);
278			continue;
279			case 'V':
280			{
281			/* ISO 8601 Week Of Year:
282			If the week (Monday - Sunday) containing
283			January 1 has four or more days in the new
284			year, then it is week 1; otherwise it is
285			week 53 of the previous year and the next
286			week is week one. */
287
288			int week = MON_WEEK(t);
289
290			int days = (((t)->tm_yday + 7 - \
291			((t)->tm_wday ? (t)->tm_wday - 1 : 6)) % 7);
292
293
294			if (days >= 4) {
295			week++;
296			} else if (week == 0) {
297			week = 53;
298			}
299
300			if (!_conv(week, 2, '0'))
301			return(0);
302			continue;
303			}
304			case 'W':
305			if (!_conv(MON_WEEK(t), 2, '0'))
306			return(0);
307			continue;
308			case 'w':
309			if (!_conv(t->tm_wday, 1, '0'))
310			return(0);
311			continue;
312			case 'x':
313			if (!_fmt(_CurrentTimeLocale->d_fmt, t))
314			return(0);
315			continue;
316			case 'X':
317			if (!_fmt(_CurrentTimeLocale->t_fmt, t))
318			return(0);
319			continue;
320			case 'y':
321			if (!_conv((t->tm_year + TM_YEAR_BASE) % 100,
322			2, '0'))
323			return(0);
324			continue;
325			case 'Y':
326			if (!_conv((t->tm_year + TM_YEAR_BASE), 4, '0'))
327			return(0);
328			continue;
329			#ifndef MAC_TCL
330			case 'Z': {
331			char *name = TclpGetTZName(t->tm_isdst);
332			if (name && !_add(name)) {
333			return 0;
334			}
335			continue;
336			}
337			#endif
338			case '%':
339			/*
340			* X311J/88-090 (4.12.3.5): if conversion char is
341			* undefined, behavior is undefined. Print out the
342			* character itself as printf(3) does.
343			*/
344			default:
345			break;
346			}
347			}
348			if (!gsize--)
349			return(0);
350			pt++ = format;
351			}
352			return(gsize);
353			}
354
355			static int
356			_secs(t)
357			const struct tm *t;
358			{
359			static char buf[15];
360			register time_t s;
361			register char *p;
362			struct tm tmp;
363
364			/* Make a copy, mktime(3) modifies the tm struct. */
365			tmp = *t;
366			s = mktime(&tmp);
367			for (p = buf + sizeof(buf) - 2; s > 0 && p > buf; s /= 10)
368			*p-- = (char)(s % 10 + '0');
369			return(_add(++p));
370			}
371
372			static int
373			_conv(n, digits, pad)
374			int n, digits;
375			int pad;
376			{
377			static char buf[10];
378			register char *p;
379
380			for (p = buf + sizeof(buf) - 2; n > 0 && p > buf; n /= 10, --digits)
381			*p-- = (char)(n % 10 + '0');
382			while (p > buf && digits-- > 0)
383			*p-- = (char) pad;
384			return(_add(++p));
385			}
386
387			static int
388			_add(str)
389			const char *str;
390			{
391			for (;; ++pt, --gsize) {
392			if (!gsize)
393			return(0);
394			if (!(pt = str++))
395			return(1);
396			}
397			}
398
399			/* $History: strftime.c $
400			*
401			* *************** Version 1 ***************
402			* User: Dtashley Date: 1/02/01 Time: 12:17a
403			* Created in $/IjuScripter, IjuConsole/Source/Tcl Base
404			* Initial check-in.
405			*/
406
407			/* End of STRFTIME.C */