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//
// Adapted for use in eCos by Gary Thomas
// Copyright (C) 2003 Gary Thomas
//
 
/*
 * Copyright (c) 1999 Kungliga Tekniska H�gskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * 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. Neither the name of KTH 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 KTH AND ITS 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 KTH OR ITS 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. */
 
#include <stddef.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
 
static const char *weekdays[] = {
    "Sunday",
    "Monday",
    "Tuesday",
    "Wednesday",
    "Thursday",
    "Friday",
    "Saturday",
    NULL
};
 
static const char *month[] = {
    "January",
    "February",
    "March",
    "April",
    "May",
    "June",
    "July",
    "August",
    "September",
    "October",
    "November",
    "December",
    NULL,
};
 
static const char *ampm[] = {
    "am",
    "pm",
    NULL
};
 
/*
 * Try to match `*buf' to one of the strings in `strs'.  Return the
 * index of the matching string (or -1 if none).  Also advance buf.
 */
 
static int
match_string (const char **buf, const char **strs, int ablen)
{
    int i = 0;
 
    for (i = 0; strs[i] != NULL; ++i) {
        int len = ablen > 0 ? ablen : strlen (strs[i]);
 
        if (strncasecmp (*buf, strs[i], len) == 0) {
            *buf += len;
            return i;
        }
    }
    return -1;
}
 
/*
 * tm_year is relative this year
 */
 
const int tm_year_base = 1900;
 
/*
 * Return TRUE iff `year' was a leap year.
 */
 
static int
is_leap_year (int year)
{
    return (year % 4) == 0 && ((year % 100) != 0 || (year % 400) == 0);
}
 
/*
 * Return the weekday [0,6] (0 = Sunday) of the first day of `year'
 */
 
static int
first_day (int year)
{
    int ret = 4;  // Jan 1, 1970 was on Thursday
 
    for (; year > 1970; --year)
        ret = (ret + 365 + is_leap_year (year) ? 1 : 0) % 7;
    return ret;
}
 
/*
 * Set `timeptr' given `wnum' (week number [0, 53])
 */
 
static void
set_week_number_sun (struct tm *timeptr, int wnum)
{
    int fday = first_day (timeptr->tm_year + tm_year_base);
 
    timeptr->tm_yday = wnum * 7 + timeptr->tm_wday - fday;
    if (timeptr->tm_yday < 0) {
        timeptr->tm_wday = fday;
        timeptr->tm_yday = 0;
    }
}
 
/*
 * Set `timeptr' given `wnum' (week number [0, 53])
 */
 
static void
set_week_number_mon (struct tm *timeptr, int wnum)
{
    int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;
 
    timeptr->tm_yday = wnum * 7 + (timeptr->tm_wday + 6) % 7 - fday;
    if (timeptr->tm_yday < 0) {
        timeptr->tm_wday = (fday + 1) % 7;
        timeptr->tm_yday = 0;
    }
}
 
/*
 * Set `timeptr' given `wnum' (week number [0, 53])
 */
 
static void
set_week_number_mon4 (struct tm *timeptr, int wnum)
{
    int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;
    int offset = 0;
 
    if (fday < 4)
        offset += 7;
 
    timeptr->tm_yday = offset + (wnum - 1) * 7 + timeptr->tm_wday - fday;
    if (timeptr->tm_yday < 0) {
        timeptr->tm_wday = fday;
        timeptr->tm_yday = 0;
    }
}
 
/*
 *
 */
 
char *
strptime (const char *buf, const char *format, struct tm *timeptr)
{
    char c;
 
    for (; (c = *format) != '\0'; ++format) {
        char *s;
        int ret;
 
        if (isspace (c)) {
            while (isspace (*buf))
                ++buf;
        } else if (c == '%' && format[1] != '\0') {
            c = *++format;
            if (c == 'E' || c == 'O')
                c = *++format;
            switch (c) {
            case 'A' :
                ret = match_string (&buf, weekdays, 0);
                if (ret < 0)
                    return NULL;
                timeptr->tm_wday = ret;
                break;
            case 'a' :
                ret = match_string (&buf, weekdays, 3);
                if (ret < 0)
                    return NULL;
                timeptr->tm_wday = ret;
                break;
            case 'B' :
                ret = match_string (&buf, month, 0);
                if (ret < 0)
                    return NULL;
                timeptr->tm_mon = ret;
                break;
            case 'b' :
            case 'h' :
                ret = match_string (&buf, month, 3);
                if (ret < 0)
                    return NULL;
                timeptr->tm_mon = ret;
                break;
            case 'C' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_year = (ret * 100) - tm_year_base;
                buf = s;
                break;
            case 'c' :
                // Date and Time in the current locale - unsupported
                return NULL;
            case 'D' :          /* %m/%d/%y */
                s = strptime (buf, "%m/%d/%y", timeptr);
                if (s == NULL)
                    return NULL;
                buf = s;
                break;
            case 'd' :
            case 'e' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_mday = ret;
                buf = s;
                break;
            case 'H' :
            case 'k' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_hour = ret;
                buf = s;
                break;
            case 'I' :
            case 'l' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                if (ret == 12)
                    timeptr->tm_hour = 0;
                else
                    timeptr->tm_hour = ret;
                buf = s;
                break;
            case 'j' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_yday = ret - 1;
                buf = s;
                break;
            case 'm' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_mon = ret - 1;
                buf = s;
                break;
            case 'M' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_min = ret;
                buf = s;
                break;
            case 'n' :
                if (*buf == '\n')
                    ++buf;
                else
                    return NULL;
                break;
            case 'p' :
                ret = match_string (&buf, ampm, 0);
                if (ret < 0)
                    return NULL;
                if (timeptr->tm_hour == 0) {
                    if (ret == 1)
                        timeptr->tm_hour = 12;
                } else
                    timeptr->tm_hour += 12;
                break;
            case 'r' :          /* %I:%M:%S %p */
                s = strptime (buf, "%I:%M:%S %p", timeptr);
                if (s == NULL)
                    return NULL;
                buf = s;
                break;
            case 'R' :          /* %H:%M */
                s = strptime (buf, "%H:%M", timeptr);
                if (s == NULL)
                    return NULL;
                buf = s;
                break;
            case 'S' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_sec = ret;
                buf = s;
                break;
            case 't' :
                if (*buf == '\t')
                    ++buf;
                else
                    return NULL;
                break;
            case 'T' :          /* %H:%M:%S */
            case 'X' :
                s = strptime (buf, "%H:%M:%S", timeptr);
                if (s == NULL)
                    return NULL;
                buf = s;
                break;
            case 'u' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_wday = ret - 1;
                buf = s;
                break;
            case 'w' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_wday = ret;
                buf = s;
                break;
            case 'U' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                set_week_number_sun (timeptr, ret);
                buf = s;
                break;
            case 'V' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                set_week_number_mon4 (timeptr, ret);
                buf = s;
                break;
            case 'W' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                set_week_number_mon (timeptr, ret);
                buf = s;
                break;
            case 'x' :
                s = strptime (buf, "%Y:%m:%d", timeptr);
                if (s == NULL)
                    return NULL;
                buf = s;
                break;
            case 'y' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                if (ret < 70)
                    timeptr->tm_year = 100 + ret;
                else
                    timeptr->tm_year = ret;
                buf = s;
                break;
            case 'Y' :
                ret = strtol (buf, &s, 10);
                if (s == buf)
                    return NULL;
                timeptr->tm_year = ret - tm_year_base;
                buf = s;
                break;
            case 'Z' :
                // Timezone spec not handled
                return NULL;
            case '\0' :
                --format;
                /* FALLTHROUGH */
            case '%' :
                if (*buf == '%')
                    ++buf;
                else
                    return NULL;
                break;
            default :
                if (*buf == '%' || *++buf == c)
                    ++buf;
                else
                    return NULL;
                break;
            }
        } else {
            if (*buf == c)
                ++buf;
            else
                return NULL;
        }
    }
    return (char *)buf;
}
 
// strptime.cxx

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Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [language/] [c/] [libc/] [time/] [current/] [src/] [strptime.cxx] - Blame information for rev 810

Line No.	Rev	Author	Line
1	786	skrzyp	`//`
2			`// Adapted for use in eCos by Gary Thomas`
3			`// Copyright (C) 2003 Gary Thomas`
4			`//`
5
6			`/*`
7			`* Copyright (c) 1999 Kungliga Tekniska H�gskolan`
8			`* (Royal Institute of Technology, Stockholm, Sweden).`
9			`* All rights reserved.`
10			`*`
11			`* Redistribution and use in source and binary forms, with or without`
12			`* modification, are permitted provided that the following conditions`
13			`* are met:`
14			`*`
15			`* 1. Redistributions of source code must retain the above copyright`
16			`* notice, this list of conditions and the following disclaimer.`
17			`*`
18			`* 2. Redistributions in binary form must reproduce the above copyright`
19			`* notice, this list of conditions and the following disclaimer in the`
20			`* documentation and/or other materials provided with the distribution.`
21			`*`
22			`* 3. Neither the name of KTH nor the names of its contributors may be`
23			`* used to endorse or promote products derived from this software without`
24			`* specific prior written permission.`
25			`*`
26			* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
27			`* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE`
28			`* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR`
29			`* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE`
30			`* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR`
31			`* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF`
32			`* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR`
33			`* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,`
34			`* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR`
35			`* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF`
36			`* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */`
37
38			`#include <stddef.h>`
39			`#include <stdlib.h>`
40			`#include <ctype.h>`
41			`#include <string.h>`
42			`#include <time.h>`
43
44			`static const char *weekdays[] = {`
45			`"Sunday",`
46			`"Monday",`
47			`"Tuesday",`
48			`"Wednesday",`
49			`"Thursday",`
50			`"Friday",`
51			`"Saturday",`
52			`NULL`
53			`};`
54
55			`static const char *month[] = {`
56			`"January",`
57			`"February",`
58			`"March",`
59			`"April",`
60			`"May",`
61			`"June",`
62			`"July",`
63			`"August",`
64			`"September",`
65			`"October",`
66			`"November",`
67			`"December",`
68			`NULL,`
69			`};`
70
71			`static const char *ampm[] = {`
72			`"am",`
73			`"pm",`
74			`NULL`
75			`};`
76
77			`/*`
78			* Try to match `*buf' to one of the strings in `strs'. Return the
79			`* index of the matching string (or -1 if none). Also advance buf.`
80			`*/`
81
82			`static int`
83			`match_string (const char buf, const char strs, int ablen)`
84			`{`
85			`int i = 0;`
86
87			`for (i = 0; strs[i] != NULL; ++i) {`
88			`int len = ablen > 0 ? ablen : strlen (strs[i]);`
89
90			`if (strncasecmp (*buf, strs[i], len) == 0) {`
91			`*buf += len;`
92			`return i;`
93			`}`
94			`}`
95			`return -1;`
96			`}`
97
98			`/*`
99			`* tm_year is relative this year`
100			`*/`
101
102			`const int tm_year_base = 1900;`
103
104			`/*`
105			* Return TRUE iff `year' was a leap year.
106			`*/`
107
108			`static int`
109			`is_leap_year (int year)`
110			`{`
111			`return (year % 4) == 0 && ((year % 100) != 0 \|\| (year % 400) == 0);`
112			`}`
113
114			`/*`
115			* Return the weekday [0,6] (0 = Sunday) of the first day of `year'
116			`*/`
117
118			`static int`
119			`first_day (int year)`
120			`{`
121			`int ret = 4; // Jan 1, 1970 was on Thursday`
122
123			`for (; year > 1970; --year)`
124			`ret = (ret + 365 + is_leap_year (year) ? 1 : 0) % 7;`
125			`return ret;`
126			`}`
127
128			`/*`
129			* Set `timeptr' given `wnum' (week number [0, 53])
130			`*/`
131
132			`static void`
133			`set_week_number_sun (struct tm *timeptr, int wnum)`
134			`{`
135			`int fday = first_day (timeptr->tm_year + tm_year_base);`
136
137			`timeptr->tm_yday = wnum * 7 + timeptr->tm_wday - fday;`
138			`if (timeptr->tm_yday < 0) {`
139			`timeptr->tm_wday = fday;`
140			`timeptr->tm_yday = 0;`
141			`}`
142			`}`
143
144			`/*`
145			* Set `timeptr' given `wnum' (week number [0, 53])
146			`*/`
147
148			`static void`
149			`set_week_number_mon (struct tm *timeptr, int wnum)`
150			`{`
151			`int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;`
152
153			`timeptr->tm_yday = wnum * 7 + (timeptr->tm_wday + 6) % 7 - fday;`
154			`if (timeptr->tm_yday < 0) {`
155			`timeptr->tm_wday = (fday + 1) % 7;`
156			`timeptr->tm_yday = 0;`
157			`}`
158			`}`
159
160			`/*`
161			* Set `timeptr' given `wnum' (week number [0, 53])
162			`*/`
163
164			`static void`
165			`set_week_number_mon4 (struct tm *timeptr, int wnum)`
166			`{`
167			`int fday = (first_day (timeptr->tm_year + tm_year_base) + 6) % 7;`
168			`int offset = 0;`
169
170			`if (fday < 4)`
171			`offset += 7;`
172
173			`timeptr->tm_yday = offset + (wnum - 1) * 7 + timeptr->tm_wday - fday;`
174			`if (timeptr->tm_yday < 0) {`
175			`timeptr->tm_wday = fday;`
176			`timeptr->tm_yday = 0;`
177			`}`
178			`}`
179
180			`/*`
181			`*`
182			`*/`
183
184			`char *`
185			`strptime (const char buf, const char format, struct tm *timeptr)`
186			`{`
187			`char c;`
188
189			`for (; (c = *format) != '\0'; ++format) {`
190			`char *s;`
191			`int ret;`
192
193			`if (isspace (c)) {`
194			`while (isspace (*buf))`
195			`++buf;`
196			`} else if (c == '%' && format[1] != '\0') {`
197			`c = *++format;`
198			`if (c == 'E' \|\| c == 'O')`
199			`c = *++format;`
200			`switch (c) {`
201			`case 'A' :`
202			`ret = match_string (&buf, weekdays, 0);`
203			`if (ret < 0)`
204			`return NULL;`
205			`timeptr->tm_wday = ret;`
206			`break;`
207			`case 'a' :`
208			`ret = match_string (&buf, weekdays, 3);`
209			`if (ret < 0)`
210			`return NULL;`
211			`timeptr->tm_wday = ret;`
212			`break;`
213			`case 'B' :`
214			`ret = match_string (&buf, month, 0);`
215			`if (ret < 0)`
216			`return NULL;`
217			`timeptr->tm_mon = ret;`
218			`break;`
219			`case 'b' :`
220			`case 'h' :`
221			`ret = match_string (&buf, month, 3);`
222			`if (ret < 0)`
223			`return NULL;`
224			`timeptr->tm_mon = ret;`
225			`break;`
226			`case 'C' :`
227			`ret = strtol (buf, &s, 10);`
228			`if (s == buf)`
229			`return NULL;`
230			`timeptr->tm_year = (ret * 100) - tm_year_base;`
231			`buf = s;`
232			`break;`
233			`case 'c' :`
234			`// Date and Time in the current locale - unsupported`
235			`return NULL;`
236			`case 'D' : /* %m/%d/%y */`
237			`s = strptime (buf, "%m/%d/%y", timeptr);`
238			`if (s == NULL)`
239			`return NULL;`
240			`buf = s;`
241			`break;`
242			`case 'd' :`
243			`case 'e' :`
244			`ret = strtol (buf, &s, 10);`
245			`if (s == buf)`
246			`return NULL;`
247			`timeptr->tm_mday = ret;`
248			`buf = s;`
249			`break;`
250			`case 'H' :`
251			`case 'k' :`
252			`ret = strtol (buf, &s, 10);`
253			`if (s == buf)`
254			`return NULL;`
255			`timeptr->tm_hour = ret;`
256			`buf = s;`
257			`break;`
258			`case 'I' :`
259			`case 'l' :`
260			`ret = strtol (buf, &s, 10);`
261			`if (s == buf)`
262			`return NULL;`
263			`if (ret == 12)`
264			`timeptr->tm_hour = 0;`
265			`else`
266			`timeptr->tm_hour = ret;`
267			`buf = s;`
268			`break;`
269			`case 'j' :`
270			`ret = strtol (buf, &s, 10);`
271			`if (s == buf)`
272			`return NULL;`
273			`timeptr->tm_yday = ret - 1;`
274			`buf = s;`
275			`break;`
276			`case 'm' :`
277			`ret = strtol (buf, &s, 10);`
278			`if (s == buf)`
279			`return NULL;`
280			`timeptr->tm_mon = ret - 1;`
281			`buf = s;`
282			`break;`
283			`case 'M' :`
284			`ret = strtol (buf, &s, 10);`
285			`if (s == buf)`
286			`return NULL;`
287			`timeptr->tm_min = ret;`
288			`buf = s;`
289			`break;`
290			`case 'n' :`
291			`if (*buf == '\n')`
292			`++buf;`
293			`else`
294			`return NULL;`
295			`break;`
296			`case 'p' :`
297			`ret = match_string (&buf, ampm, 0);`
298			`if (ret < 0)`
299			`return NULL;`
300			`if (timeptr->tm_hour == 0) {`
301			`if (ret == 1)`
302			`timeptr->tm_hour = 12;`
303			`} else`
304			`timeptr->tm_hour += 12;`
305			`break;`
306			`case 'r' : /* %I:%M:%S %p */`
307			`s = strptime (buf, "%I:%M:%S %p", timeptr);`
308			`if (s == NULL)`
309			`return NULL;`
310			`buf = s;`
311			`break;`
312			`case 'R' : /* %H:%M */`
313			`s = strptime (buf, "%H:%M", timeptr);`
314			`if (s == NULL)`
315			`return NULL;`
316			`buf = s;`
317			`break;`
318			`case 'S' :`
319			`ret = strtol (buf, &s, 10);`
320			`if (s == buf)`
321			`return NULL;`
322			`timeptr->tm_sec = ret;`
323			`buf = s;`
324			`break;`
325			`case 't' :`
326			`if (*buf == '\t')`
327			`++buf;`
328			`else`
329			`return NULL;`
330			`break;`
331			`case 'T' : /* %H:%M:%S */`
332			`case 'X' :`
333			`s = strptime (buf, "%H:%M:%S", timeptr);`
334			`if (s == NULL)`
335			`return NULL;`
336			`buf = s;`
337			`break;`
338			`case 'u' :`
339			`ret = strtol (buf, &s, 10);`
340			`if (s == buf)`
341			`return NULL;`
342			`timeptr->tm_wday = ret - 1;`
343			`buf = s;`
344			`break;`
345			`case 'w' :`
346			`ret = strtol (buf, &s, 10);`
347			`if (s == buf)`
348			`return NULL;`
349			`timeptr->tm_wday = ret;`
350			`buf = s;`
351			`break;`
352			`case 'U' :`
353			`ret = strtol (buf, &s, 10);`
354			`if (s == buf)`
355			`return NULL;`
356			`set_week_number_sun (timeptr, ret);`
357			`buf = s;`
358			`break;`
359			`case 'V' :`
360			`ret = strtol (buf, &s, 10);`
361			`if (s == buf)`
362			`return NULL;`
363			`set_week_number_mon4 (timeptr, ret);`
364			`buf = s;`
365			`break;`
366			`case 'W' :`
367			`ret = strtol (buf, &s, 10);`
368			`if (s == buf)`
369			`return NULL;`
370			`set_week_number_mon (timeptr, ret);`
371			`buf = s;`
372			`break;`
373			`case 'x' :`
374			`s = strptime (buf, "%Y:%m:%d", timeptr);`
375			`if (s == NULL)`
376			`return NULL;`
377			`buf = s;`
378			`break;`
379			`case 'y' :`
380			`ret = strtol (buf, &s, 10);`
381			`if (s == buf)`
382			`return NULL;`
383			`if (ret < 70)`
384			`timeptr->tm_year = 100 + ret;`
385			`else`
386			`timeptr->tm_year = ret;`
387			`buf = s;`
388			`break;`
389			`case 'Y' :`
390			`ret = strtol (buf, &s, 10);`
391			`if (s == buf)`
392			`return NULL;`
393			`timeptr->tm_year = ret - tm_year_base;`
394			`buf = s;`
395			`break;`
396			`case 'Z' :`
397			`// Timezone spec not handled`
398			`return NULL;`
399			`case '\0' :`
400			`--format;`
401			`/* FALLTHROUGH */`
402			`case '%' :`
403			`if (*buf == '%')`
404			`++buf;`
405			`else`
406			`return NULL;`
407			`break;`
408			`default :`
409			`if (buf == '%' \|\| ++buf == c)`
410			`++buf;`
411			`else`
412			`return NULL;`
413			`break;`
414			`}`
415			`} else {`
416			`if (*buf == c)`
417			`++buf;`
418			`else`
419			`return NULL;`
420			`}`
421			`}`
422			`return (char *)buf;`
423			`}`
424
425			`// strptime.cxx`