Implement & use a ttail_set_fmt() + tests

src/include/ttail_init.h

  */
 int ttail_set_prefix(ttail_t*, const char*);
 
+/**@brief Set a date format
+ *
+ * The supported input field descriptors are listed below.  In case a text string (such as the name
+ * of a day of the week or a month name) is to be matched, the comparison is case insensitive.   In
+ * case a number is to be matched, leading zeros are permitted but not required.
+ * 
+ * \%%     The % character.
+ * 
+ * \%a or %A
+ * The  name  of the day of the week according to the current locale, in abbreviated form or
+ * the full name.
+ * 
+ * \%b or %B or %h
+ * The month name according to the current locale, in abbreviated form or the full name.
+ * 
+ * \%c     The date and time representation for the current locale.
+ * 
+ * \%C     The century number (0-99).
+ * 
+ * \%d or %e
+ * The day of month (1-31).
+ * 
+ * \%D     Equivalent to %m/%d/%y.  (This is the American style date, very confusing  to  non-Ameri‐
+ * cans,  especially  since %d/%m/%y is widely used in Europe.  The ISO 8601 standard format
+ * is %Y-%m-%d.)
+ * 
+ * \%H     The hour (0-23).
+ * 
+ * \%I     The hour on a 12-hour clock (1-12).
+ * 
+ * \%j     The day number in the year (1-366).
+ * 
+ * \%m     The month number (1-12).
+ * 
+ * \%M     The minute (0-59).
+ * 
+ * \%n     Arbitrary whitespace.
+ * 
+ * \%p     The locale's equivalent of AM or PM.  (Note: there may be none.)
+ * 
+ * \%r     The 12-hour clock time (using the locale's AM or PM).  In the POSIX locale equivalent  to
+ * \%I:%M:%S  %p.  If t_fmt_ampm is empty in the LC_TIME part of the current locale, then the
+ * behavior is undefined.
+ * 
+ * \%R     Equivalent to %H:%M.
+ * 
+ * \%S     The second (0-60; 60 may occur for leap seconds; earlier also 61 was allowed).
+ * 
+ * \%t     Arbitrary whitespace.
+ * 
+ * \%T     Equivalent to %H:%M:%S.
+ * 
+ * \%U     The week number with Sunday the first day of the week (0-53).  The first Sunday of  Janu‐
+ * ary is the first day of week 1.
+ * 
+ * \%w     The ordinal number of the day of the week (0-6), with Sunday = 0.
+ * 
+ * \%W     The  week number with Monday the first day of the week (0-53).  The first Monday of Janu‐
+ * ary is the first day of week 1.
+ * 
+ * \%x     The date, using the locale's date format.
+ * 
+ * \%X     The time, using the locale's time format.
+ * 
+ * \%y     The year within century (0-99).  When a century is not otherwise specified, values in the
+ * range  69-99  refer  to  years  in the twentieth century (1969-1999); values in the range
+ * 00-68 refer to years in the twenty-first century (2000-2068).
+ * 
+ * \%Y     The year, including century (for example, 1991).
+ * 
+ * Some field descriptors can be modified by the E or O modifier characters  to  indicate  that  an
+ * alternative  format or specification should be used.  If the alternative format or specification
+ * does not exist in the current locale, the unmodified field descriptor is used.
+ * 
+ * 
+ * The E modifier specifies that the input string may contain alternative locale-dependent versions
+ * of the date and time representation:
+ * 
+ * \%Ec    The locale's alternative date and time representation.
+ * 
+ * \%EC    The name of the base year (period) in the locale's alternative representation.
+ * 
+ * \%Ex    The locale's alternative date representation.
+ * 
+ * \%EX    The locale's alternative time representation.
+ * 
+ * \%Ey    The offset from %EC (year only) in the locale's alternative representation.
+ * 
+ * \%EY    The full alternative year representation.
+ * 
+ * The O modifier specifies that the numerical input may be in an alternative locale-dependent for‐
+ * mat:
+ * 
+ * \%Od or %Oe
+ * The day of the month using the locale's alternative numeric symbols;  leading  zeros  are
+ * permitted but not required.
+ * 
+ * \%OH    The hour (24-hour clock) using the locale's alternative numeric symbols.
+ * 
+ * \%OI    The hour (12-hour clock) using the locale's alternative numeric symbols.
+ * 
+ * \%Om    The month using the locale's alternative numeric symbols.
+ * 
+ * \%OM    The minutes using the locale's alternative numeric symbols.
+ * 
+ * \%OS    The seconds using the locale's alternative numeric symbols.
+ * 
+ * \%OU    The  week  number  of  the  year (Sunday as the first day of the week) using the locale's
+ * alternative numeric symbols.
+ * 
+ * \%Ow    The ordinal number of the day of the week (Sunday=0),
+ * using the locale's alternative numeric symbols.
+ * 
+ * \%OW    The week number of the year (Monday as the first day of  the  week)  using  the  locale's
+ * alternative numeric symbols.
+ * 
+ * \%Oy    The year (offset from %C) using the locale's alternative numeric symbols.
+ *
+ *
+ *@param ttail_t*
+ *@param const char * format
+ *@return 0 if no errors 1 if allready set -1 if compilation fails
+ */
+int ttail_set_fmt(ttail_t*, const char*);
+
 /**@brief Set dates min/max
  *
  *After the call dates are free and set to NULL except if error

src/ttail_init.c

 	res->logfile_name = NULL;
 	res->logfile_sz = 0;
 	res->prefix_sz = -1;
+	res->session = NULL;
 	memset(&(res->date_min), 0, sizeof(struct tm));
 	memset(&(res->date_max), 0, sizeof(struct tm));
 
 given\n");
 					goto ttail_init_err;
 				}
-				res->fmt = malloc(
-					sizeof(char)*(strlen(optarg)+1));
-				if(!res->fmt)
+				if(ttail_set_fmt(res, optarg) < 0)
 				{
-					perror("Unable to allocate memory\
-for date format");
 					goto ttail_init_err;
 				}
-				strcpy(res->fmt, optarg);
-				res->flag |= TTAIL_FLAG_FORMAT;
 
 				break;
 			case 'l':
 	return -1;
 }
 
+int ttail_set_fmt(ttail_t* t, const char* fmt)
+{
+	size_t len;
+	if(t->flag & TTAIL_FLAG_FORMAT)
+	{
+		return -1;
+	}
+	len = strlen(fmt);
+	t->fmt = malloc(sizeof(char)*(len+1));
+	if(!t->fmt)
+	{
+		return -1;
+	}
+	strncpy(t->fmt, fmt, len);
+	t->fmt[len] = '\0';
+	t->flag |= TTAIL_FLAG_FORMAT;
+	return 0;
+}
+
 int ttail_set_dates(ttail_t* res, char* dates[2])
 {
 	int c, ret;

tests/ttail_argparse_check.c

 		"ttail_t.prefix_sz should be NULL");
 }
 END_TEST
+START_TEST (test_argparse_empty_session)
+{
+	ck_assert_msg(ttail->session == NULL,
+		"ttail_t.session should be NULL");
+}
+END_TEST
 
 /*
  * Bad arguments
 	tcase_add_test(tc_argparse_empty, test_argparse_empty_fmt);
 	tcase_add_test(tc_argparse_empty, test_argparse_empty_verbose);
 	tcase_add_test(tc_argparse_empty, test_argparse_empty_prefixsz);
+	tcase_add_test(tc_argparse_empty, test_argparse_empty_session);
 
 	tc_argparse_badarg = tcase_create("bad arguments parsing");
 	tcase_add_test(tc_argparse_badarg, test_argparse_bad1);

tests/ttail_init_check.c

 }
 END_TEST
 
+/*
+ * ttail_set_fmt() checks
+ */
+START_TEST (test_init_fmt)
+{
+	int ret;
+	ret = ttail_set_fmt(ttail, "%B");
+	ck_assert_int_eq(ret, 0);
+	ck_assert_int_eq(ttail->flag & TTAIL_FLAG_FORMAT, TTAIL_FLAG_FORMAT);
+	ck_assert_str_eq(ttail->fmt, "%B");
+}
+END_TEST
+
+START_TEST (test_init_fmt_again)
+{
+	int ret;
+	ttail_set_fmt(ttail, "%B");
+	ret = ttail_set_fmt(ttail, "%b");
+	ck_assert_int_eq(ret, -1);
+	ck_assert_int_eq(ttail->flag & TTAIL_FLAG_FORMAT, TTAIL_FLAG_FORMAT);
+	ck_assert_str_eq(ttail->fmt, "%B");
+}
+END_TEST
+
 /*
  * ttail_format_guess() tests
  */
 Suite * ttail_init_suite(void)
 {
 	Suite *s;
-	TCase *tc_init_logfile, *tc_init_prefix ,*tc_init_fmt_guess, \
-		*tc_init_set_dates, *tc_init_check;
+	TCase *tc_init_logfile, *tc_init_prefix , *tc_init_fmt, \
+		*tc_init_fmt_guess, *tc_init_set_dates, *tc_init_check;
 
 	s = suite_create("ttail init checks");
 
 	tcase_add_test(tc_init_prefix, test_init_again_prefix);
 	tcase_add_test(tc_init_prefix, test_init_againbad_prefix);
 
+	tc_init_fmt = tcase_create("date format init checks");
+	tcase_add_checked_fixture(tc_init_fmt,
+		setup_ttail_empty, teardown_ttail);
+	tcase_add_test(tc_init_fmt, test_init_fmt);
+	tcase_add_test(tc_init_fmt, test_init_fmt_again);
+
 	tc_init_fmt_guess = tcase_create("date format guess init checks");
 	tcase_add_checked_fixture(tc_init_fmt_guess,
 		setup_ttail_empty, teardown_ttail);
 
 	suite_add_tcase(s, tc_init_logfile);
 	suite_add_tcase(s, tc_init_prefix);
+	suite_add_tcase(s, tc_init_fmt);
 	suite_add_tcase(s, tc_init_fmt_guess);
 	suite_add_tcase(s, tc_init_set_dates);
 	suite_add_tcase(s, tc_init_check);

tests/ttail_search_check.c

 	*/
 	printf("%ld\n", ttail->logfile_sz);
 	ttail->flag |= TTAIL_FLAG_FORMAT;
-	/*
-	ttail->fmt = "%b%n%d %H:%M";
-	*/
+	ttail_set_fmt(ttail, "%B%n%d %H:%M");
 	r = _ttail_search_closest_files_init(ttail);
 	ck_assert_int_eq(r, 0);
 	/*