shared_source/c_tcl_base_7_5_w_mods/strftime.c

/* $Header$ */
/* 
 * 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);
    }
}

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