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	/* $Header$ */
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 */