/* -----------------------------------------------------------------------
* formatting.c
*
- * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.153 2009/01/01 17:23:49 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.154 2009/02/07 14:16:45 momjian Exp $
*
*
* Portions Copyright (c) 1999-2009, PostgreSQL Global Development Group
* -----------------------------------------------------------------------
*/
-/* ----------
- * UnComment me for DEBUG
- * ----------
- */
-/***
-#define DEBUG_TO_FROM_CHAR
+#ifdef DEBUG_TO_FROM_CHAR
#define DEBUG_elog_output DEBUG3
-***/
+#endif
#include "postgres.h"
#define SUFFTYPE_PREFIX 1
#define SUFFTYPE_POSTFIX 2
+#define CLOCK_24_HOUR 0
+#define CLOCK_12_HOUR 1
+
/* ----------
* Full months
* years up one. For interval years, we just return the year.
*/
#define ADJUST_YEAR(year, is_interval) ((is_interval) ? (year) : ((year) <= 0 ? -((year) - 1) : (year)))
-#define BC_STR_ORIG " BC"
#define A_D_STR "A.D."
#define a_d_STR "a.d."
#define BC_STR "BC"
#define bc_STR "bc"
+/*
+ * AD / BC strings for seq_search.
+ *
+ * These are given in two variants, a long form with periods and a standard
+ * form without.
+ *
+ * The array is laid out such that matches for AD have an even index, and
+ * matches for BC have an odd index. So the boolean value for BC is given by
+ * taking the array index of the match, modulo 2.
+ */
+static char *adbc_strings[] = {ad_STR, bc_STR, AD_STR, BC_STR, NULL};
+static char *adbc_strings_long[] = {a_d_STR, b_c_STR, A_D_STR, B_C_STR, NULL};
/* ----------
* AM / PM
#define PM_STR "PM"
#define pm_STR "pm"
+/*
+ * AM / PM strings for seq_search.
+ *
+ * These are given in two variants, a long form with periods and a standard
+ * form without.
+ *
+ * The array is laid out such that matches for AM have an even index, and
+ * matches for PM have an odd index. So the boolean value for PM is given by
+ * taking the array index of the match, modulo 2.
+ */
+static char *ampm_strings[] = {am_STR, pm_STR, AM_STR, PM_STR, NULL};
+static char *ampm_strings_long[] = {a_m_STR, p_m_STR, A_M_STR, P_M_STR, NULL};
/* ----------
* Months in roman-numeral
* Flags & Options:
* ----------
*/
-#define ONE_UPPER 1 /* Name */
-#define ALL_UPPER 2 /* NAME */
-#define ALL_LOWER 3 /* name */
+#define ONE_UPPER 1 /* Name */
+#define ALL_UPPER 2 /* NAME */
+#define ALL_LOWER 3 /* name */
-#define FULL_SIZ 0
+#define FULL_SIZ 0
-#define MAX_MON_LEN 3
-#define MAX_DY_LEN 3
+#define MAX_MONTH_LEN 9
+#define MAX_MON_LEN 3
+#define MAX_DAY_LEN 9
+#define MAX_DY_LEN 3
+#define MAX_RM_LEN 4
-#define TH_UPPER 1
-#define TH_LOWER 2
+#define TH_UPPER 1
+#define TH_LOWER 2
/* ----------
* Number description struct
{
FromCharDateMode mode;
int hh,
- am,
pm,
mi,
ss,
cc,
j,
us,
- yysz; /* is it YY or YYYY ? */
+ yysz, /* is it YY or YYYY ? */
+ clock; /* 12 or 24 hour clock? */
} TmFromChar;
#define ZERO_tmfc(_X) memset(_X, 0, sizeof(TmFromChar))
*/
#ifdef DEBUG_TO_FROM_CHAR
#define DEBUG_TMFC(_X) \
- elog(DEBUG_elog_output, "TMFC:\nmode %d\nhh %d\nam %d\npm %d\nmi %d\nss %d\nssss %d\nd %d\ndd %d\nddd %d\nmm %d\nms: %d\nyear %d\nbc %d\nww %d\nw %d\ncc %d\nj %d\nus: %d\nyysz: %d", \
- (_X)->mode, (_X)->hh, (_X)->am, (_X)->pm, (_X)->mi, (_X)->ss, \
- (_X)->ssss, (_X)->d, (_X)->dd, (_X)->ddd, (_X)->mm, (_X)->ms, \
- (_X)->year, (_X)->bc, (_X)->ww, (_X)->w, (_X)->cc, (_X)->j, \
- (_X)->us, (_X)->yysz);
+ elog(DEBUG_elog_output, "TMFC:\nmode %d\nhh %d\npm %d\nmi %d\nss %d\nssss %d\nd %d\ndd %d\nddd %d\nmm %d\nms: %d\nyear %d\nbc %d\nww %d\nw %d\ncc %d\nj %d\nus: %d\nyysz: %d\nclock: %d", \
+ (_X)->mode, (_X)->hh, (_X)->pm, (_X)->mi, (_X)->ss, (_X)->ssss, \
+ (_X)->d, (_X)->dd, (_X)->ddd, (_X)->mm, (_X)->ms, (_X)->year, \
+ (_X)->bc, (_X)->ww, (_X)->w, (_X)->cc, (_X)->j, (_X)->us, \
+ (_X)->yysz, (_X)->clock);
#define DEBUG_TM(_X) \
elog(DEBUG_elog_output, "TM:\nsec %d\nyear %d\nmin %d\nwday %d\nhour %d\nyday %d\nmday %d\nnisdst %d\nmon %d\n",\
(_X)->tm_sec, (_X)->tm_year,\
return len;
}
-#define AMPM_ERROR ereport(ERROR, \
- (errcode(ERRCODE_INVALID_DATETIME_FORMAT), \
- errmsg("invalid AM/PM string")));
-
/*
* Set the date mode of a from-char conversion.
*
from_char_parse_int_len(int *dest, char **src, const int len, FormatNode *node)
{
long result;
+ char copy[DCH_MAX_ITEM_SIZ + 1];
char *init = *src;
+ int used;
+
+ Assert(len <= DCH_MAX_ITEM_SIZ);
+ used = (int) strlcpy(copy, *src, len + 1);
if (S_FM(node->suffix) || is_next_separator(node))
{
* We need to pull exactly the number of characters given in 'len' out
* of the string, and convert those.
*/
- char first[DCH_MAX_ITEM_SIZ + 1];
char *last;
- int used;
-
- Assert(len <= DCH_MAX_ITEM_SIZ);
- strncpy(first, init, len);
- first[len] = '\0';
- if (strlen(first) < len)
+ if (used < len)
ereport(ERROR,
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
errmsg("source string too short for \"%s\" formatting field",
node->key->name),
errdetail("Field requires %d characters, but only %d "
"remain.",
- len, (int) strlen(first)),
+ len, used),
errhint("If your source string is not fixed-width, try "
"using the \"FM\" modifier.")));
errno = 0;
- result = strtol(first, &last, 10);
- used = last - first;
+ result = strtol(copy, &last, 10);
+ used = last - copy;
if (used > 0 && used < len)
ereport(ERROR,
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
- errmsg("invalid value for \"%s\" in source string",
- node->key->name),
+ errmsg("invalid value \"%s\" for \"%s\"",
+ copy, node->key->name),
errdetail("Field requires %d characters, but only %d "
"could be parsed.", len, used),
errhint("If your source string is not fixed-width, try "
if (*src == init)
ereport(ERROR,
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
- errmsg("invalid value for \"%s\" in source string",
- node->key->name),
+ errmsg("invalid value \"%s\" for \"%s\"",
+ copy, node->key->name),
errdetail("Value must be an integer.")));
if (errno == ERANGE || result < INT_MIN || result > INT_MAX)
}
#ifdef DEBUG_TO_FROM_CHAR
-
- /*
- * elog(DEBUG_elog_output, "N: %c, P: %c, A: %s (%s)", *n, *p, *a,
- * name);
- */
+ elog(DEBUG_elog_output, "N: %c, P: %c, A: %s (%s)",
+ *n, *p, *a, name);
#endif
if (*n != *p)
break;
from_char_seq_search(int *dest, char **src, char **array, int type, int max,
FormatNode *node)
{
- int result;
int len;
- result = seq_search(*src, array, type, max, &len);
+ *dest = seq_search(*src, array, type, max, &len);
if (len <= 0)
+ {
+ char copy[DCH_MAX_ITEM_SIZ + 1];
+
+ Assert(max <= DCH_MAX_ITEM_SIZ);
+ strlcpy(copy, *src, max + 1);
+
ereport(ERROR,
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
- errmsg("invalid value for \"%s\" in source string",
- node->key->name),
+ errmsg("invalid value \"%s\" for \"%s\"",
+ copy, node->key->name),
errdetail("The given value did not match any of the allowed "
"values for this field.")));
- from_char_set_int(dest, result, node);
+ }
*src += len;
return len;
}
{
FormatNode *n;
char *s;
- int len;
+ int len,
+ value;
bool fx_mode = false;
for (n = node, s = in; n->type != NODE_TYPE_END && *s != '\0'; n++)
break;
case DCH_A_M:
case DCH_P_M:
- if (strncmp(s, P_M_STR, n->key->len) == 0)
- out->pm = TRUE;
- else if (strncmp(s, A_M_STR, n->key->len) == 0)
- out->am = TRUE;
- else
- AMPM_ERROR;
- s += strlen(P_M_STR);
- break;
- case DCH_AM:
- case DCH_PM:
- if (strncmp(s, PM_STR, n->key->len) == 0)
- out->pm = TRUE;
- else if (strncmp(s, AM_STR, n->key->len) == 0)
- out->am = TRUE;
- else
- AMPM_ERROR;
- s += strlen(PM_STR);
- break;
case DCH_a_m:
case DCH_p_m:
- if (strncmp(s, p_m_STR, n->key->len) == 0)
- out->pm = TRUE;
- else if (strncmp(s, a_m_STR, n->key->len) == 0)
- out->am = TRUE;
- else
- AMPM_ERROR;
- s += strlen(p_m_STR);
+ from_char_seq_search(&value, &s, ampm_strings_long,
+ ALL_UPPER, n->key->len, n);
+ from_char_set_int(&out->pm, value % 2, n);
+ out->clock = CLOCK_12_HOUR;
break;
+ case DCH_AM:
+ case DCH_PM:
case DCH_am:
case DCH_pm:
- if (strncmp(s, pm_STR, n->key->len) == 0)
- out->pm = TRUE;
- else if (strncmp(s, am_STR, n->key->len) == 0)
- out->am = TRUE;
- else
- AMPM_ERROR;
- s += strlen(pm_STR);
+ from_char_seq_search(&value, &s, ampm_strings,
+ ALL_UPPER, n->key->len, n);
+ from_char_set_int(&out->pm, value % 2, n);
+ out->clock = CLOCK_12_HOUR;
break;
case DCH_HH:
case DCH_HH12:
+ from_char_parse_int_len(&out->hh, &s, 2, n);
+ out->clock = CLOCK_12_HOUR;
+ s += SKIP_THth(n->suffix);
+ break;
case DCH_HH24:
from_char_parse_int_len(&out->hh, &s, 2, n);
s += SKIP_THth(n->suffix);
errmsg("\"TZ\"/\"tz\" format patterns are not supported in to_date")));
case DCH_A_D:
case DCH_B_C:
- if (strncmp(s, B_C_STR, n->key->len) == 0)
- out->bc = TRUE;
- s += n->key->len;
- break;
- case DCH_AD:
- case DCH_BC:
- if (strncmp(s, BC_STR, n->key->len) == 0)
- out->bc = TRUE;
- s += n->key->len;
- break;
case DCH_a_d:
case DCH_b_c:
- if (strncmp(s, b_c_STR, n->key->len) == 0)
- out->bc = TRUE;
- s += n->key->len;
+ from_char_seq_search(&value, &s, adbc_strings_long,
+ ALL_UPPER, n->key->len, n);
+ from_char_set_int(&out->bc, value % 2, n);
break;
+ case DCH_AD:
+ case DCH_BC:
case DCH_ad:
case DCH_bc:
- if (strncmp(s, bc_STR, n->key->len) == 0)
- out->bc = TRUE;
- s += n->key->len;
+ from_char_seq_search(&value, &s, adbc_strings,
+ ALL_UPPER, n->key->len, n);
+ from_char_set_int(&out->bc, value % 2, n);
break;
case DCH_MONTH:
case DCH_Month:
case DCH_month:
- from_char_seq_search(&out->mm, &s, months_full, ONE_UPPER,
- FULL_SIZ, n);
- out->mm++;
+ from_char_seq_search(&value, &s, months_full, ONE_UPPER,
+ MAX_MONTH_LEN, n);
+ from_char_set_int(&out->mm, value + 1, n);
break;
case DCH_MON:
case DCH_Mon:
case DCH_mon:
- from_char_seq_search(&out->mm, &s, months, ONE_UPPER,
+ from_char_seq_search(&value, &s, months, ONE_UPPER,
MAX_MON_LEN, n);
- out->mm++;
+ from_char_set_int(&out->mm, value + 1, n);
break;
case DCH_MM:
from_char_parse_int(&out->mm, &s, n);
case DCH_DAY:
case DCH_Day:
case DCH_day:
- from_char_seq_search(&out->d, &s, days, ONE_UPPER,
- FULL_SIZ, n);
+ from_char_seq_search(&value, &s, days, ONE_UPPER,
+ MAX_DAY_LEN, n);
+ from_char_set_int(&out->d, value, n);
break;
case DCH_DY:
case DCH_Dy:
case DCH_dy:
- from_char_seq_search(&out->d, &s, days, ONE_UPPER,
+ from_char_seq_search(&value, &s, days, ONE_UPPER,
MAX_DY_LEN, n);
+ from_char_set_int(&out->d, value, n);
break;
case DCH_DDD:
from_char_parse_int(&out->ddd, &s, n);
s += SKIP_THth(n->suffix);
break;
case DCH_RM:
- from_char_seq_search(&out->mm, &s, rm_months_upper,
- ALL_UPPER, FULL_SIZ, n);
- out->mm = 12 - out->mm;
+ from_char_seq_search(&value, &s, rm_months_upper,
+ ALL_UPPER, MAX_RM_LEN, n);
+ from_char_set_int(&out->mm, 12 - value, n);
break;
case DCH_rm:
- from_char_seq_search(&out->mm, &s, rm_months_lower,
- ALL_LOWER, FULL_SIZ, n);
- out->mm = 12 - out->mm;
+ from_char_seq_search(&value, &s, rm_months_lower,
+ ALL_LOWER, MAX_RM_LEN, n);
+ from_char_set_int(&out->mm, 12 - value, n);
break;
case DCH_W:
from_char_parse_int(&out->w, &s, n);
if (tmfc.hh)
tm->tm_hour = tmfc.hh;
- if (tmfc.pm || tmfc.am)
+ if (tmfc.clock == CLOCK_12_HOUR)
{
if (tm->tm_hour < 1 || tm->tm_hour > 12)
ereport(ERROR,
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
- errmsg("AM/PM hour must be between 1 and 12")));
+ errmsg("hour \"%d\" is invalid for the 12-hour clock",
+ tm->tm_hour),
+ errhint("Use the 24-hour clock, or give an hour between 1 and 12.")));
if (tmfc.pm && tm->tm_hour < 12)
tm->tm_hour += 12;
-
- else if (tmfc.am && tm->tm_hour == 12)
+ else if (!tmfc.pm && tm->tm_hour == 12)
tm->tm_hour = 0;
}
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