Jacques, You could have learned Perl in the time it took to write that. :)
Jared On Friday 26 October 2001 20:20, Jacques Kilchoer wrote: > > -----Original Message----- > > From: Suhen Pather [mailto:[EMAIL PROTECTED]] > > > > Thanks for the reply. > > I am passing a hardcoded date. > > I am not getting a date from the > > "date" command in ksh. > > > > What my ksh does is retrieves $1 and must check if the date format > > is in DD-MON-YY eg. 02-FEB-01. > > It uses the hardcoded date (passed in as argument 1) in the script. > > If the date is in another format other than above then it must exit. > > I dusted off my old C programming skills (Sorry Mr. Still I still don't > know PERL that well). Why not write a "check_date" program that returns 0 > for a valid date and 1 for an invalid date? > The date verification function is case-sensitive and only checks for the > one format. It also assumes that two-digit years will be prefixed with > "20". Modifying it to be more user-friendly is left as an exercise to the > alert reader. > > /* > * verify that date passed to function is a correct date > * parameter passed to function must be in the same format > * as shell command <<date +"%d-%b-%y">> > * example: check_date 26-Jan-01 > * echo $? > * check_date 32-Jan-01 > * echo $? > * > * program assumes that %b date format will return a string with 3 > characters > */ > #include <ctype.h> > #include <stdio.h> > #include <stdlib.h> > #include <string.h> > #include <time.h> > > > #define B_DTFMT_LEN 3 > #define DT_LEN 6 + B_DTFMT_LEN > #define HIGH_MM 11 > #define CBASE_YEAR 1900 > #define BASE_YEAR 2000 > > extern int main (int argc, char **argv) > { > short int mm ; > struct tm tmi ; > time_t t ; > char month[B_DTFMT_LEN + 1] = { '\0' }, > day[3] = { '\0' }, > compmonth[B_DTFMT_LEN + 1] = { '\0' }, > compdate[DT_LEN + 1] = { '\0' } ; > > if (argc != 2) > { > puts ("Usage - check_date \"date\" (date in %d-%b-%y format)") ; > return EXIT_SUCCESS ; > } > > if (strlen (argv[1]) != DT_LEN || argv[1][2] != '-' > > || argv[1][3 + B_DTFMT_LEN] != '-' > || ! isdigit (argv[1][0]) || ! isdigit (argv[1][1]) > || ! isdigit (argv[1][4 + B_DTFMT_LEN]) > || ! isdigit (argv[1][5 + B_DTFMT_LEN]) ) > > return EXIT_FAILURE ; > > strncpy (month, argv[1] + 3, B_DTFMT_LEN) ; > > memset (&tmi, '\0', sizeof tmi) ; > mm = -1 ; > while (strncmp (month, compmonth, B_DTFMT_LEN) && ++mm <= HIGH_MM) > { > tmi.tm_mday = 1 ; > tmi.tm_mon = mm ; > tmi.tm_year = 2001 ; > strftime (compmonth, B_DTFMT_LEN + 1, "%b", &tmi) ; > } > if (mm > HIGH_MM) > return EXIT_FAILURE ; > > strncpy (day, argv[1], 2) ; > tmi.tm_mday = atoi (day) ; > tmi.tm_mon = mm ; > tmi.tm_year = BASE_YEAR + atoi (argv[1] + 4 + B_DTFMT_LEN) - CBASE_YEAR > ; if ((t = mktime (&tmi)) == (time_t) -1) > return EXIT_FAILURE ; > > tmi = *localtime (&t) ; > strftime (compdate, DT_LEN + 1, "%d-%b-%y", &tmi) ; > if (strcmp (argv[1], compdate)) > return EXIT_FAILURE ; > > return EXIT_SUCCESS ; > } ---------------------------------------- Content-Type: text/html; charset="iso-8859-1"; name="Attachment: 1" Content-Transfer-Encoding: quoted-printable Content-Description: ---------------------------------------- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
