as attache of this mail is patch (to the main tree) with to_char's

family functions. Contain:

  conversion from a datetype to formatted text:

	to_char( datetime, 	text)
	to_char( timestamp,	text)
	to_char( int4,		text)
	to_char( int8,		text)
	to_char( float4,	text)
	to_char( float8,	text)
	to_char( numeric,	text)

  vice versa:

	to_date		( text, text)
	to_datetime	( text, text)
	to_timestamp	( text, text)
	to_number	( text, text)	   (convert to numeric)


  PostgreSQL to_char is very compatible with Oracle's to_char(), but not
total exactly (now). Small differentions are in number formating. It will
fix in next to_char() version.


! If will this patch aplly to the main tree, must be delete the current
  to_char version in contrib (directory "dateformat" and note in contrib's
  README), this patch not erase it (sorry Bruce).



The patch patching files:

	doc/src/sgml/func.sgml
                     ^^^^^^^^
   Hmm, I'm not sure if my English... :( Check it anyone (volunteer)?

   Thomas, it is right? SGML is not my primary lang  and compile
   the current PG docs tree is very happy job (hard variables setting in
   docs/sgml/Makefile --> HSTYLE= /home/users/t/thomas/....  :-)

   What add any definition to global configure.in and set Makefiles in docs
   tree via ./configure?

	src/backend/utils/adt/Makefile
	src/backend/utils/adt/formatting.c
	src/include/catalog/pg_proc.h
	src/include/utils/formatting.h
Karel Zak <zakkr@zf.jcu.cz>              http://home.zf.jcu.cz/~zakkr/

4 files changed, 3215 insertions, 3 deletions

diff --git a/src/backend/utils/adt/Makefile b/src/backend/utils/adt/Makefile
index ce132c719b3..192928db097 100644
--- a/src/backend/utils/adt/Makefile
+++ b/src/backend/utils/adt/Makefile
@@ -4,7 +4,7 @@
 #    Makefile for utils/adt
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/utils/adt/Makefile,v 1.32 2000/01/19 02:58:56 petere Exp $
+#    $Header: /cvsroot/pgsql/src/backend/utils/adt/Makefile,v 1.33 2000/01/25 23:53:51 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -31,7 +31,7 @@ OBJS = acl.o arrayfuncs.o arrayutils.o bool.o cash.o char.o chunk.o \
 	regexp.o regproc.o ruleutils.o selfuncs.o sets.o \
 	tid.o timestamp.o varchar.o varlena.o version.o \
 	network.o mac.o inet_net_ntop.o inet_net_pton.o \
-	ri_triggers.o pg_lzcompress.o pg_locale.o
+	ri_triggers.o pg_lzcompress.o pg_locale.o formatting.o
 
 all: SUBSYS.o
 
diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
new file mode 100644
index 00000000000..ca03b133755
--- /dev/null
+++ b/src/backend/utils/adt/formatting.c
@@ -0,0 +1,3157 @@
+
+/* -----------------------------------------------------------------------
+ * formatting.c
+ *
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.1 2000/01/25 23:53:51 momjian Exp $
+ *
+ *   TO_CHAR(); TO_DATETIME(); TO_DATE(); TO_NUMBER();  
+ *
+ *   The PostgreSQL routines for a DateTime/int/float/numeric formatting, 
+ *   inspire with Oracle TO_CHAR() / TO_DATE() / TO_NUMBER() routines.  
+ *
+ *   1999 Karel Zak "Zakkr"
+ *
+ *
+ *   Cache & Memory:
+ *	Routines use (itself) internal cache for format pictures. If 
+ *	new format arg is same as a last format string, routines not 
+ *	call the format-parser. 
+ *	
+ *	The cache use static buffer and is persistent across transactions. If
+ *	format-picture is bigger than cache buffer, parser is called always. 
+ *
+ *   NOTE for Number version:
+ *	All in this version is implemented as keywords ( => not used
+ * 	suffixes), because a format picture is for *one* item (number) 
+ *	only. It not is as a datetime version, where each keyword (can) 
+ *	has suffix.  
+ *
+ *   NOTE for DateTime version:
+ *	In this modul is *not* used POSIX 'struct tm' type, but 
+ *	PgSQL type, which has tm_mon based on one (*non* zero) and
+ *	year *not* based on 1900, but is used full year number.  
+ *	Modul support AC / BC years.	 
+ *
+ *  Supported types for to_char():
+ *		
+ *		DateTime, Numeric, int4, int8, float4, float8
+ *
+ *  Supported types for reverse conversion:
+ *
+ *		Datetime	- to_datetime()
+ *		Date		- to_date()
+ *		Numeric		- to_number()		
+ *
+ * -----------------------------------------------------------------------
+ */
+ 
+/* ----------
+ * UnComment me for DEBUG
+ * ----------
+ */
+/*** 
+#define DEBUG_TO_FROM_CHAR	
+#define DEBUG_elog_output	NOTICE
+***/
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <locale.h>
+#include <math.h>
+
+#include "postgres.h"
+#include "utils/builtins.h"
+#include "utils/pg_locale.h"
+#include "utils/formatting.h"
+
+/* ----------
+ * Routines type
+ * ----------
+ */
+#define DCH_TYPE		1	/* DATE-TIME version 	*/		
+#define NUM_TYPE		2	/* NUMBER version	*/
+
+/* ----------
+ * KeyWord Index (ascii from position 32 (' ') to 126 (~))
+ * ----------
+ */
+#define KeyWord_INDEX_SIZE		('~' - ' ' + 1)
+#define KeyWord_INDEX_FILTER(_c)	((_c) < ' ' || (_c) > '~' ? 0 : 1)
+
+/* ----------
+ * Maximal length of one node 
+ * ----------
+ */
+#define DCH_MAX_ITEM_SIZ		9	/* some month name ? 	  */
+#define NUM_MAX_ITEM_SIZ		16	/* roman number 	  */
+
+/* ----------
+ * Format picture cache limits
+ * ----------
+ */
+#define NUM_CACHE_SIZE	64 
+#define DCH_CACHE_SIZE	128 
+
+/* ----------
+ * More in float.c
+ * ----------
+ */
+#define MAXFLOATWIDTH   64
+#define MAXDOUBLEWIDTH  128
+
+/* ----------
+ * External (defined in PgSQL dt.c (datetime utils)) 
+ * ----------
+ */
+extern  char		*months[],		/* month abbreviation   */
+			*days[];		/* full days		*/
+
+/* ----------
+ * Format parser structs             
+ * ----------
+ */
+typedef struct {
+	char		*name;		/* suffix string		*/
+	int		len,		/* suffix length		*/
+			id,		/* used in node->suffix	*/
+			type;		/* prefix / postfix 		*/
+} KeySuffix;
+
+typedef struct {
+	char		*name;		/* keyword			*/
+					/* action for keyword		*/
+	int		len,		/* keyword length		*/	
+			(*action)(),	
+			id;		/* keyword id			*/			
+} KeyWord;
+
+typedef struct {
+	int		type;		/* node type 			*/
+	KeyWord		*key;		/* if node type is KEYWORD 	*/
+	int		character,	/* if node type is CHAR 	*/
+			suffix;		/* keyword suffix 		*/		
+} FormatNode;
+
+#define NODE_TYPE_END		1
+#define	NODE_TYPE_ACTION	2
+#define NODE_TYPE_CHAR		3
+
+#define SUFFTYPE_PREFIX		1
+#define SUFFTYPE_POSTFIX	2
+
+
+/* ----------
+ * Full months
+ * ----------
+ */
+static char *months_full[]	= {
+	"January", "February", "March", "April", "May", "June", "July", 
+	"August", "September", "October", "November", "December", NULL        
+};
+
+/* ----------
+ * AC / DC
+ * ----------
+ */
+#define YEAR_ABS(_y)	(_y < 0 ? -(_y -1) : _y)
+#define BC_STR		" BC"
+
+/* ---------- 
+ * Months in roman-numeral 
+ * (Must be conversely for seq_search (in FROM_CHAR), because 
+ *  'VIII' must be over 'V')   
+ * ----------
+ */
+static char *rm_months[] = {
+	"XII", "XI", "X", "IX", "VIII", "VII",
+	"VI", "V", "IV", "III", "II", "I", NULL
+};
+
+/* ----------
+ * Roman numbers
+ * ----------
+ */
+static char *rm1[]   = { "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", NULL };
+static char *rm10[]  = { "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC", NULL };
+static char *rm100[] = { "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM", NULL };
+
+/* ---------- 
+ * Ordinal postfixes 
+ * ----------
+ */
+static char *numTH[] = { "ST", "ND", "RD", "TH", NULL };
+static char *numth[] = { "st", "nd", "rd", "th", NULL };
+
+/* ---------- 
+ * Flags & Options: 
+ * ----------
+ */
+#define TO_CHAR		1
+#define FROM_CHAR 	2
+
+#define ONE_UPPER	1		/* Name	*/
+#define ALL_UPPER	2		/* NAME */
+#define ALL_LOWER	3		/* name */
+
+#define FULL_SIZ	0
+
+#define MAX_MON_LEN	3
+#define MAX_DY_LEN	3
+
+#define TH_UPPER	1
+#define TH_LOWER	2
+
+
+#ifdef DEBUG_TO_FROM_CHAR
+	#define NOTICE_TM {\
+		elog(DEBUG_elog_output, "TM:\nsec %d\nyear %d\nmin %d\nwday %d\nhour %d\nyday %d\nmday %d\nnisdst %d\nmon %d\n",\
+			tm->tm_sec, tm->tm_year,\
+			tm->tm_min, tm->tm_wday, tm->tm_hour, tm->tm_yday,\
+			tm->tm_mday, tm->tm_isdst,tm->tm_mon);\
+	}		
+#endif
+
+/* ----------
+ * Flags for DCH version
+ * ----------
+ */
+static int DCH_global_flag	= 0; 
+ 
+#define DCH_F_FX	0x01 
+
+#define IS_FX		(DCH_global_flag & DCH_F_FX)
+
+
+/* ----------
+ * Number description struct
+ * ----------
+ */
+typedef struct {
+	int	pre,			/* (count) numbers before decimal */
+		pos,			/* (count) numbers after decimal  */
+		lsign,			/* want locales sign		  */
+		flag,			/* number parametrs		  */
+		pre_lsign_num,		/* tmp value for lsign		  */	
+		multi,			/* multiplier for 'V'		  */
+		need_locale;		/* needs it locale		  */ 
+} NUMDesc;
+
+/* ----------
+ * Flags for NUMBER version 
+ * ----------
+ */
+#define	NUM_F_DECIMAL	0x01
+#define NUM_F_LDECIMAL 	0x02
+#define NUM_F_ZERO	0x04
+#define NUM_F_BLANK	0x08
+#define NUM_F_FILLMODE	0x10
+#define NUM_F_LSIGN	0x20
+#define NUM_F_BRACKET	0x40
+#define NUM_F_MINUS	0x80
+#define NUM_F_PLUS	0x100
+#define NUM_F_ROMAN	0x200
+#define NUM_F_MULTI	0x400
+
+#define NUM_LSIGN_PRE	-1
+#define NUM_LSIGN_POST	1
+#define NUM_LSIGN_NONE	0
+
+/* ----------
+ * Tests
+ * ----------
+ */
+#define	IS_DECIMAL(_f)	((_f)->flag & NUM_F_DECIMAL)
+#define	IS_LDECIMAL(_f)	((_f)->flag & NUM_F_LDECIMAL)
+#define	IS_ZERO(_f)	((_f)->flag & NUM_F_ZERO)
+#define	IS_BLANK(_f)	((_f)->flag & NUM_F_BLANK)
+#define	IS_FILLMODE(_f)	((_f)->flag & NUM_F_FILLMODE)
+#define	IS_BRACKET(_f)	((_f)->flag & NUM_F_BRACKET)
+#define IS_MINUS(_f)	((_f)->flag & NUM_F_MINUS)
+#define IS_PLUS(_f)	((_f)->flag & NUM_F_PLUS)
+#define IS_ROMAN(_f)	((_f)->flag & NUM_F_ROMAN)
+#define IS_MULTI(_f)	((_f)->flag & NUM_F_MULTI)
+
+/* ----------
+ * Private global-modul definitions 
+ * ----------
+ */
+static	struct tm 	_tm,	*tm  = &_tm;
+
+/* ----------
+ * Utils
+ * ----------
+ */
+#ifndef MIN
+#define MIN(a,b) (((a)<(b)) ? (a) : (b))
+#endif
+#ifndef MAX
+#define MAX(a,b) (((a)>(b)) ? (a) : (b))
+#endif
+
+/*****************************************************************************
+ *			KeyWords definition & action 
+ *****************************************************************************/
+
+static int dch_global(int arg, char *inout, int suf, int flag, FormatNode *node); 
+static int dch_time(int arg, char *inout, int suf, int flag, FormatNode *node);
+static int dch_date(int arg, char *inout, int suf, int flag, FormatNode *node);
+
+/* ---------- 
+ * Suffixes: 
+ * ----------
+ */
+#define	DCH_S_FM	0x01
+#define	DCH_S_TH	0x02
+#define	DCH_S_th	0x04
+#define	DCH_S_SP	0x08
+
+/* ---------- 
+ * Suffix tests 
+ * ----------
+ */
+#define S_THth(_s)	(((_s & DCH_S_TH) || (_s & DCH_S_th)) ? 1 : 0)
+#define S_TH(_s)	((_s & DCH_S_TH) ? 1 : 0)
+#define S_th(_s)	((_s & DCH_S_th) ? 1 : 0)
+#define S_TH_TYPE(_s)	((_s & DCH_S_TH) ? TH_UPPER : TH_LOWER)
+
+#define S_FM(_s)	((_s & DCH_S_FM) ? 1 : 0)
+#define S_SP(_s)	((_s & DCH_S_SP) ? 1 : 0)
+
+/* ----------
+ * Suffixes definition for DATE-TIME TO/FROM CHAR
+ * ----------
+ */
+static KeySuffix DCH_suff[] = {
+	{	"FM",		2, DCH_S_FM,	SUFFTYPE_PREFIX	 },
+	{	"TH",		2, DCH_S_TH,	SUFFTYPE_POSTFIX },		
+	{	"th",		2, DCH_S_th,	SUFFTYPE_POSTFIX },		
+	{	"SP",		2, DCH_S_SP,	SUFFTYPE_POSTFIX },
+	/* last */
+	{	NULL,		0, 0,		0		 }	
+};
+
+/* ----------
+ * Format-pictures (KeyWord).
+ * 
+ * The KeyWord field; alphabetic sorted, *BUT* strings alike is sorted
+ *		  complicated -to-> easy: 
+ *
+ *	(example: "DDD","DD","Day","D" )	
+ *
+ * (this specific sort needs the algorithm for sequential search for strings,
+ * which not has exact end; -> How keyword is in "HH12blabla" ? - "HH" 
+ * or "HH12"? You must first try "HH12", because "HH" is in string, but 
+ * it is not good.   
+ *
+ * (!) 
+ *    Position for the keyword is simular as position in the enum DCH/NUM_poz 
+ * (!)
+ *
+ * For fast search is used the 'int index[256-32]' (first 32 ascii chars is 
+ * skiped), in this index is DCH_ enums for each ASCII position or -1 if 
+ * char is not used in the KeyWord. Search example for string "MM":
+ * 	1)	see in index to index[77-32] (77 = 'M'), 
+ *	2)	take keywords position from index[77-32]
+ *	3)	run sequential search in keywords[] from position   
+ *
+ * ----------
+ */
+
+typedef enum { 
+	DCH_CC,
+	DCH_DAY,
+	DCH_DDD,
+	DCH_DD,
+	DCH_DY,
+	DCH_Day,
+	DCH_Dy,
+	DCH_D,
+	DCH_FX,		/* global suffix */
+	DCH_HH24,
+	DCH_HH12,
+	DCH_HH,
+	DCH_J,
+	DCH_MI,
+	DCH_MM,
+	DCH_MONTH,
+	DCH_MON,
+	DCH_Month,
+	DCH_Mon,
+	DCH_Q,
+	DCH_RM,
+	DCH_SSSS,
+	DCH_SS,
+	DCH_WW,
+	DCH_W,
+	DCH_Y_YYY,
+	DCH_YYYY,
+	DCH_YYY,
+	DCH_YY,
+	DCH_Y,
+	DCH_day,
+	DCH_dy,
+	DCH_month,
+	DCH_mon,
+	/* last */
+	_DCH_last_
+} DCH_poz;
+
+typedef enum {
+	NUM_COMMA,
+	NUM_DEC,
+	NUM_0,
+	NUM_9,
+	NUM_B,
+	NUM_C,
+	NUM_D,
+	NUM_E,
+	NUM_FM,
+	NUM_G,
+	NUM_L,
+	NUM_MI,
+	NUM_PL,
+	NUM_PR,
+	NUM_RN,
+	NUM_SG,
+	NUM_SP,
+	NUM_S,
+	NUM_TH,
+	NUM_V,
+	NUM_rn,
+	NUM_th,
+	/* last */
+	_NUM_last_
+} NUM_poz;
+
+/* ----------
+ * KeyWords for DATE-TIME version
+ * ----------
+ */
+static KeyWord DCH_keywords[] = {	
+/*	keyword,	len, func.	type                 is in Index */
+							
+{	"CC",           2, dch_date,	DCH_CC		},	/*C*/
+{	"DAY",          3, dch_date,	DCH_DAY		},	/*D*/
+{	"DDD",          3, dch_date,	DCH_DDD		},
+{	"DD",           2, dch_date,	DCH_DD		},
+{	"DY",           2, dch_date,	DCH_DY		},
+{	"Day",		3, dch_date,	DCH_Day		},
+{	"Dy",           2, dch_date,	DCH_Dy		},
+{	"D",            1, dch_date,	DCH_D		},	
+{	"FX",		2, dch_global,	DCH_FX		},	/*F*/
+{	"HH24",		4, dch_time,	DCH_HH24	},	/*H*/
+{	"HH12",		4, dch_time,	DCH_HH12	},
+{	"HH",		2, dch_time,	DCH_HH		},
+{	"J",            1, dch_date,	DCH_J	 	},	/*J*/	
+{	"MI",		2, dch_time,	DCH_MI		},
+{	"MM",          	2, dch_date,	DCH_MM		},
+{	"MONTH",        5, dch_date,	DCH_MONTH	},
+{	"MON",          3, dch_date,	DCH_MON		},
+{	"Month",        5, dch_date,	DCH_Month	},
+{	"Mon",          3, dch_date,	DCH_Mon		},
+{	"Q",            1, dch_date,	DCH_Q		},	/*Q*/	
+{	"RM",           2, dch_date,	DCH_RM	 	},	/*R*/
+{	"SSSS",		4, dch_time,	DCH_SSSS	},	/*S*/
+{	"SS",		2, dch_time,	DCH_SS		},
+{	"WW",           2, dch_date,	DCH_WW		},	/*W*/
+{	"W",            1, dch_date,	DCH_W	 	},
+{	"Y,YYY",        5, dch_date,	DCH_Y_YYY	},	/*Y*/
+{	"YYYY",         4, dch_date,	DCH_YYYY	},
+{	"YYY",          3, dch_date,	DCH_YYY		},
+{	"YY",           2, dch_date,	DCH_YY		},
+{	"Y",            1, dch_date,	DCH_Y	 	},
+{	"day",		3, dch_date,	DCH_day		},	/*d*/
+{	"dy",           2, dch_date,	DCH_dy		},	
+{	"month",        5, dch_date,	DCH_month	},	/*m*/	
+{	"mon",          3, dch_date,	DCH_mon		},
+
+/* last */
+{	NULL,		0, NULL,	0 		}};
+
+/* ----------
+ * KeyWords for NUMBER version
+ * ----------
+ */
+static KeyWord NUM_keywords[] = {	
+/*	keyword,	len, func.	type   	     	   is in Index */
+{	",",	        1, NULL,	NUM_COMMA	},  /*,*/
+{	".",	        1, NULL,	NUM_DEC		},  /*.*/
+{	"0",	        1, NULL,	NUM_0		},  /*0*/
+{	"9",	        1, NULL,	NUM_9		},  /*9*/	
+{	"B",	        1, NULL,	NUM_B		},  /*B*/	
+{	"C",	        1, NULL,	NUM_C		},  /*C*/
+{	"D",	        1, NULL,	NUM_D		},  /*D*/
+{	"E",	        1, NULL,	NUM_E		},  /*E*/	
+{	"FM",	        2, NULL,	NUM_FM		},  /*F*/	
+{	"G",	        1, NULL,	NUM_G		},  /*G*/	
+{	"L",	        1, NULL,	NUM_L		},  /*L*/	
+{	"MI",	        2, NULL,	NUM_MI		},  /*M*/	
+{	"PL",        	2, NULL,	NUM_PL		},  /*P*/	
+{	"PR",	        2, NULL,	NUM_PR		},  	
+{	"RN",	        2, NULL,	NUM_RN		},  /*R*/
+{	"SG",	        2, NULL,	NUM_SG		},  /*S*/
+{	"SP",	        2, NULL,	NUM_SP   	},
+{	"S",	        1, NULL,	NUM_S		},  
+{	"TH",		2, NULL,	NUM_TH		},  /*T*/
+{	"V",	        1, NULL,	NUM_V   	},  /*V*/			
+{	"rn",	        2, NULL,	NUM_rn	 	},  /*r*/
+{	"th",	        2, NULL,	NUM_th	 	},  /*t*/
+
+/* last */	
+{	NULL,		0, NULL,	0 		}};
+
+
+/* ----------
+ * KeyWords index for DATE-TIME version
+ * ----------
+ */
+static int DCH_index[256 - 32] = {
+/*
+0	1	2	3	4	5	6	7	8	9
+*/
+	/*---- first 0..31 chars is skiped ----*/
+
+		-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	DCH_CC,	DCH_DAY,-1,	
+DCH_FX,	-1,	DCH_HH24,-1,	DCH_J,	-1,	-1,	DCH_MI,	-1,	-1,
+-1,	DCH_Q,	DCH_RM,	DCH_SSSS,-1,	-1,	-1,	DCH_WW,	-1,	DCH_Y_YYY,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+DCH_day,-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	DCH_month,	
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1
+
+	/*---- chars over 126 are skiped ----*/
+};	
+
+/* ----------
+ * KeyWords index for NUMBER version
+ * ----------
+ */
+static int NUM_index[256 - 32] = {
+/*
+0	1	2	3	4	5	6	7	8	9
+*/
+	/*---- first 0..31 chars are skiped ----*/
+
+		-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	NUM_COMMA,-1,	NUM_DEC,-1,	NUM_0,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	NUM_9,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	NUM_B,	NUM_C,	NUM_D,	NUM_E,	
+NUM_FM,	NUM_G,	-1,	-1,	-1,	-1,	NUM_L,	NUM_MI,	-1,	-1,
+NUM_PL,-1,	NUM_RN,	NUM_SG,	NUM_TH,	-1,	NUM_V,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	
+-1,	-1,	-1,	-1,	NUM_rn,	-1,	NUM_th,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+-1,	-1,	-1,	-1,	-1,	-1
+
+	/*---- chars over 126 are skiped ----*/
+};
+
+/* ----------
+ * Number processor struct
+ * ----------
+ */
+typedef struct NUMProc
+{
+	int	type;		/* FROM_CHAR (TO_NUMBER) or TO_CHAR */
+
+	NUMDesc	*Num;		/* number description	*/	
+	
+	int	sign,		/* '-' or '+'		*/
+		sign_wrote,	/* is sign wrote	*/
+		count_num,	/* number of non-write digits	*/
+		in_number,	/* is inside number	*/
+		pre_number;	/* space before number	*/
+		
+	char	*number,	/* string with number	*/
+		*number_p,	/* pointer to current number pozition */
+		*inout,		/* in / out buffer	*/
+		*inout_p,	/* pointer to current inout pozition */
+		
+		*L_negative_sign,	/* Locale */
+		*L_positive_sign,
+		*decimal,	
+		*L_thousands_sep,
+		*L_currency_symbol;
+} NUMProc;
+
+
+/* ----------
+ * Functions
+ * ----------
+ */
+static KeyWord *index_seq_search(char *str, KeyWord *kw, int *index);
+static KeySuffix *suff_search(char *str, KeySuffix *suf, int type);
+static void NUMDesc_prepare(NUMDesc *num, FormatNode *n);
+static void parse_format(FormatNode *node, char *str, KeyWord *kw, 
+		KeySuffix *suf, int *index, int ver, NUMDesc *Num);
+static char *DCH_action(FormatNode *node, char *inout, int flag);
+
+#ifdef DEBUG_TO_FROM_CHAR
+	static void dump_index(KeyWord *k, int *index);
+	static void dump_node(FormatNode *node, int max);
+#endif
+
+static char *get_th(char *num, int type);
+static char *str_numth(char *dest, char *num, int type);
+static int int4len(int4 num);
+static char *str_toupper(char *buff);
+static char *str_tolower(char *buff);
+static int is_acdc(char *str, int *len);
+static int seq_search(char *name, char **array, int type, int max, int *len);
+static int dch_global(int arg, char *inout, int suf, int flag, FormatNode *node); 
+static int dch_time(int arg, char *inout, int suf, int flag, FormatNode *node);
+static int dch_date(int arg, char *inout, int suf, int flag, FormatNode *node);
+static char *fill_str(char *str, int c, int max);
+static FormatNode *NUM_cache( int len, char *CacheStr, FormatNode *CacheFormat, 
+	   NUMDesc *CacheNum, NUMDesc *Num, char *pars_str, int *flag);
+static char *int_to_roman(int number);
+static void NUM_prepare_locale(NUMProc *Np);
+static int NUM_numpart(NUMProc *Np, int id);
+static char *NUM_processor (FormatNode *node, NUMDesc *Num, char *inout, char *number, 
+					int plen, int sign, int type);
+
+
+/* ----------
+ * Fast sequential search, use index for data selection which
+ * go to seq. cycle (it is very fast for non-wanted strings)
+ * (can't be used binary search in format parsing)
+ * ----------
+ */
+static KeyWord *
+index_seq_search(char *str, KeyWord *kw, int *index) 
+{
+	int	poz;
+
+	if (! KeyWord_INDEX_FILTER(*str))
+		return (KeyWord *) NULL;
+
+	if ( (poz =  *(index + (*str - ' '))) > -1) {
+	
+		KeyWord		*k = kw+poz;
+	
+		do {
+			if (! strncmp(str, k->name, k->len))
+				return k;
+			k++;
+			if (!k->name)
+				return (KeyWord *) NULL;		  
+		} while(*str == *k->name);
+	}
+	return (KeyWord *) NULL;
+}
+
+static KeySuffix *
+suff_search(char *str, KeySuffix *suf, int type)
+{
+	KeySuffix	*s;
+	
+	for(s=suf; s->name != NULL; s++) {
+		if (s->type != type)
+			continue;
+		
+		if (!strncmp(str, s->name, s->len))
+			return s;
+	}
+	return (KeySuffix *) NULL;
+}
+
+/* ----------
+ * Prepare NUMDesc (number description struct) via FormatNode struct
+ * ----------
+ */
+static void 
+NUMDesc_prepare(NUMDesc *num, FormatNode *n)
+{
+
+	if (n->type != NODE_TYPE_ACTION)
+		return;
+	
+	switch(n->key->id) {
+		
+		case NUM_9:
+			if (IS_MULTI(num)) {
+				++num->multi;
+				break;
+			}
+			if (IS_DECIMAL(num))
+				++num->pos;
+			else 
+				++num->pre;
+			break;
+		
+		case NUM_0:
+			if (num->pre == 0) 
+				num->flag |= NUM_F_ZERO; 
+			if (! IS_DECIMAL(num))
+				++num->pre;
+			else 
+				++num->pos;
+			break;	
+		
+		case NUM_B:
+			if (num->pre == 0 && num->pos == 0 && (! IS_ZERO(num)))
+				num->flag |= NUM_F_BLANK; 				
+			break;		
+		
+		case NUM_D:
+			num->flag |= NUM_F_LDECIMAL;
+			num->need_locale = TRUE;
+		case NUM_DEC:
+			if (IS_DECIMAL(num))
+				elog(ERROR, "to_char/number(): not unique decimal poit."); 
+			if (IS_MULTI(num))
+				elog(ERROR, "to_char/number(): can't use 'V' and decimal poin together."); 	
+			num->flag |= NUM_F_DECIMAL;
+			break;
+		
+		case NUM_FM:
+			num->flag |= NUM_F_FILLMODE;
+			break;
+		
+		case NUM_S:
+			if (! IS_DECIMAL(num)) {
+				num->lsign = NUM_LSIGN_PRE;
+				num->pre_lsign_num = num->pre;
+				num->need_locale = TRUE;			
+				
+			} else if (num->lsign == NUM_LSIGN_NONE) {
+				num->lsign = NUM_LSIGN_POST;	
+				num->need_locale = TRUE;
+			}	
+			break;
+		
+		case NUM_MI:
+			num->flag |= NUM_F_MINUS;
+			break;
+		
+		case NUM_PL:
+			num->flag |= NUM_F_PLUS;
+			break;		
+		
+		case NUM_SG:
+			num->flag |= NUM_F_MINUS;
+			num->flag |= NUM_F_PLUS;
+			break;
+		
+		case NUM_PR:
+			num->flag |= NUM_F_BRACKET;
+			break;	
+		case NUM_rn:
+		case NUM_RN:
+			num->flag |= NUM_F_ROMAN;
+			break;
+			
+		case NUM_L:
+		case NUM_G:
+			num->need_locale = TRUE;	
+			break;
+		
+		case NUM_V:
+			if (IS_DECIMAL(num))
+				elog(ERROR, "to_char/number(): can't use 'V' and decimal poin together."); 	
+			num->flag |= NUM_F_MULTI;
+			break;	
+	}
+	
+	return;
+}
+
+/* ----------
+ * Format parser, search small keywords and keyword's suffixes, and make 
+ * format-node tree.
+ *
+ * for DATE-TIME & NUMBER version 
+ * ----------
+ */
+static void 
+parse_format(FormatNode *node, char *str, KeyWord *kw, 
+		KeySuffix *suf, int *index, int ver, NUMDesc *Num)
+{
+	KeySuffix	*s;
+	FormatNode	*n;
+	int		node_set=0,
+			suffix,
+			last=0;
+
+#ifdef DEBUG_TO_FROM_CHAR
+	elog(DEBUG_elog_output, "to-from_char(): run parser.");
+#endif
+
+	n = node;
+
+	while(*str) {
+		suffix=0;
+		
+		/* ---------- 
+		 * Prefix 
+		 * ----------
+		 */
+		if (ver==DCH_TYPE && (s = suff_search(str, suf, SUFFTYPE_PREFIX)) != NULL) {
+			suffix |= s->id;
+			if (s->len)
+				str += s->len;
+		}
+	
+		/* ----------
+		 * Keyword 
+		 * ----------
+		 */
+		if (*str && (n->key = index_seq_search(str, kw, index)) != NULL) {
+		
+			n->type = NODE_TYPE_ACTION;
+			n->suffix = 0;
+			node_set= 1;
+			if (n->key->len)
+				str += n->key->len;
+			
+			/* ----------
+			 * NUM version: Prepare global NUMDesc struct 
+			 * ----------
+			 */
+			if (ver==NUM_TYPE)
+				NUMDesc_prepare(Num, n);
+			
+			/* ----------
+			 * Postfix
+			 * ----------
+			 */
+			if (ver==DCH_TYPE && *str && (s = suff_search(str, suf, SUFFTYPE_POSTFIX)) != NULL) {
+				suffix |= s->id;
+				if (s->len)
+					str += s->len;
+			}
+			
+		} else if (*str) {
+		
+			/* ---------- 
+			 * Special characters '\' and '"' 
+			 * ----------
+			 */
+			if (*str == '"' && last != '\\') {
+				
+				int	x = 0;
+			
+				while(*(++str)) {
+					if (*str == '"' && x != '\\') {
+						str++;
+						break;
+					} else if (*str == '\\' && x != '\\') {
+						x = '\\';
+						continue;
+					}
+					n->type = NODE_TYPE_CHAR;
+					n->character = *str;
+					n->key = (KeyWord *) NULL;
+					n->suffix = 0;
+					++n;
+					x = *str; 
+				}
+				node_set = 0;
+				suffix = 0;
+				last = 0;
+				
+			} else if (*str && *str == '\\' && last!='\\' && *(str+1) =='"') {
+				last = *str;
+				str++;
+			
+			} else if (*str) {
+				n->type = NODE_TYPE_CHAR;
+				n->character = *str;
+				n->key = (KeyWord *) NULL;
+				node_set = 1;
+				last = 0;
+				str++;
+			}
+			
+		}
+				
+		/* end */	
+		if (node_set) {
+			if (n->type == NODE_TYPE_ACTION) 
+				n->suffix = suffix;	
+			++n;
+
+			n->suffix = 0;
+			node_set = 0;
+		}
+			
+	}
+
+	n->type = NODE_TYPE_END;
+	n->suffix = 0;
+	return;
+}
+
+/* ----------
+ * Call keyword's function for each of (action) node in format-node tree 
+ * ----------
+ */
+static char *
+DCH_action(FormatNode *node, char *inout, int flag)
+{
+	FormatNode	*n;
+	char		*s;
+	
+	
+	/* ----------
+	 * Zeroing global flags
+	 * ----------
+	 */
+	DCH_global_flag = 0;
+	
+	for(n=node, s=inout; n->type != NODE_TYPE_END; n++) {
+		if (n->type == NODE_TYPE_ACTION) {
+			
+			int 	len;
+			
+			/* ----------
+			 * Call node action function 
+			 * ----------
+			 */
+			len = n->key->action(n->key->id, s, n->suffix, flag, n); 	
+			if (len > 0) 
+				s += len;
+			else 
+				continue;	
+				
+		} else {
+		
+			/* ----------
+			 * Remove to output char from input in TO_CHAR
+			 * ----------
+			 */
+			if (flag == TO_CHAR) 
+				*s = n->character;
+			
+			else {				
+				/* ----------
+				 * Skip blank space in FROM_CHAR's input 
+				 * ----------
+				 */
+				if (isspace(n->character) && IS_FX == 0) {
+					while(*s != '\0' && isspace(*(s+1)))
+						++s;	
+				}
+			}
+		}
+		
+		++s;	/* ! */
+		
+	}
+	
+	if (flag == TO_CHAR)
+		*s = '\0';
+	return inout;
+}
+
+
+/* ----------
+ * DEBUG: Dump the FormatNode Tree (debug)
+ * ----------
+ */
+#ifdef DEBUG_TO_FROM_CHAR
+
+#define DUMP_THth(_suf) (S_TH(_suf) ? "TH" : (S_th(_suf) ? "th" : " "))
+#define DUMP_FM(_suf)	(S_FM(_suf) ? "FM" : " ")
+
+static void 
+dump_node(FormatNode *node, int max)
+{
+	FormatNode	*n;
+	int		a;
+	
+	elog(DEBUG_elog_output, "to_from-char(): DUMP FORMAT");
+	
+	for(a=0, n=node; a<=max; n++, a++) {
+		if (n->type == NODE_TYPE_ACTION) 
+			elog(DEBUG_elog_output, "%d:\t NODE_TYPE_ACTION\t(%s,%s)", 
+					a, DUMP_THth(n->suffix), DUMP_FM(n->suffix));
+		else if (n->type == NODE_TYPE_CHAR) 
+			elog(DEBUG_elog_output, "%d:\t NODE_TYPE_CHAR '%c'", a, n->character);	
+		else if (n->type == NODE_TYPE_END) {
+			elog(DEBUG_elog_output, "%d:\t NODE_TYPE_END", a);		
+			return;
+		} else
+			elog(DEBUG_elog_output, "%d:\t UnKnown NODE !!!", a);	
+			
+	}
+}
+#endif
+
+/*****************************************************************************
+ *			Private utils 
+ *****************************************************************************/
+
+/* ----------
+ * Return ST/ND/RD/TH for simple (1..9) numbers 
+ * type --> 0 upper, 1 lower
+ * ----------	
+ */	
+static char *
+get_th(char *num, int type)
+{
+	int	len = strlen(num),
+		last;				
+	
+	last = *(num + (len-1));
+	if (!isdigit((unsigned char) last))
+		elog(ERROR, "get_th: '%s' is not number.", num);
+	
+	/* 11 || 12 */
+	if (len == 2 && (last=='1' || last=='2') && *num == '1') 
+		last=0;
+
+	switch(last) {
+		case '1':
+			if (type==TH_UPPER) return numTH[0];
+			return numth[0];
+		case '2':
+			if (type==TH_UPPER) return numTH[1];
+			return numth[1];
+		case '3':
+			if (type==TH_UPPER) return numTH[2];
+			return numth[2];		
+		default:
+			if (type==TH_UPPER) return numTH[3];
+			return numth[3];
+	}
+	return NULL;
+}
+
+/* ----------
+ * Convert string-number to ordinal string-number 
+ * type --> 0 upper, 1 lower	
+ * ----------
+ */
+static char *
+str_numth(char *dest, char *num, int type)
+{
+	sprintf(dest, "%s%s", num, get_th(num, type));
+	return dest; 
+}
+
+/* ----------
+ * Return length of integer writed in string 
+ * ----------
+ */
+static int 
+int4len(int4 num)
+{
+ 	char b[16];
+ 	return sprintf(b, "%d", num);
+}
+
+/* ----------
+ * Convert string to upper-string
+ * ----------
+ */
+static char *
+str_toupper(char *buff)
+{	
+	char	*p_buff=buff;
+
+	while (*p_buff) {
+		*p_buff = toupper((unsigned char) *p_buff);
+		++p_buff;
+	}
+	return buff;
+}
+
+/* ----------
+ * Convert string to lower-string
+ * ----------
+ */
+static char *
+str_tolower(char *buff)
+{	
+	char	*p_buff=buff;
+
+	while (*p_buff) {
+		*p_buff = tolower((unsigned char) *p_buff);
+		++p_buff;
+	}
+	return buff;
+}
+
+/* ----------
+ * Check if in string is AC or BC (return: 0==none; -1==BC; 1==AC)  
+ * ----------
+ */
+static int 
+is_acdc(char *str, int *len)
+{
+	char	*p;
+	
+	for(p=str; *p != '\0'; p++) {
+		if (isspace(*p))
+			continue;
+			
+		if (*(p+1)) { 
+			if (toupper(*p)=='B' && toupper(*(++p))=='C') {
+			   	*len += (p - str) +1;
+				return -1;   	
+			} else if (toupper(*p)=='A' && toupper(*(++p))=='C') {
+		   		*len += (p - str) +1;
+				return 1;   	
+		 	}
+		} 
+		return 0; 	
+	}
+	return 0;
+} 
+ 
+/* ----------
+ * Sequential search with to upper/lower conversion
+ * ----------
+ */
+static int 
+seq_search(char *name, char **array, int type, int max, int *len)
+{
+	char	*p, *n, **a;
+	int	last, i;
+	
+	*len = 0;
+	
+	if (!*name) 
+		return -1;
+	
+        /* set first char */	
+	if (type == ONE_UPPER || ALL_UPPER) 
+		*name = toupper((unsigned char) *name);
+	else if (type == ALL_LOWER)
+		*name = tolower((unsigned char) *name);
+		
+	for(last=0, a=array; *a != NULL; a++) {
+		
+		/* comperate first chars */
+		if (*name != **a)
+			continue;
+		
+		for(i=1, p=*a+1, n=name+1; ; n++, p++, i++) {
+			
+			/* search fragment (max) only */
+			if (max && i == max) {
+				*len = i;
+				return a - array;
+			} 
+			/* full size */
+			if (*p=='\0') {
+				*len = i;
+				return a - array;
+			}
+			/* Not found in array 'a' */
+			if (*n=='\0')
+				break;
+			
+			/* 
+			 * Convert (but convert new chars only)
+			 */
+			if (i > last) {
+				if (type == ONE_UPPER || type == ALL_LOWER) 
+					*n = tolower((unsigned char) *n);
+				else if (type == ALL_UPPER)	
+					*n = toupper((unsigned char) *n);
+				last=i;
+			}
+
+#ifdef DEBUG_TO_FROM_CHAR			
+			/* elog(DEBUG_elog_output, "N: %c, P: %c, A: %s (%s)", *n, *p, *a, name);*/
+#endif			
+			if (*n != *p)
+				break; 
+		}  	
+	}
+		
+	return -1;		
+}
+
+
+#ifdef DEBUG_TO_FROM_CHAR
+/* -----------
+ * DEBUG: Call for debug and for index checking; (Show ASCII char 
+ * and defined keyword for each used position  
+ * ----------
+ */	
+static void 
+dump_index(KeyWord *k, int *index)
+{
+	int	i, count=0, free_i=0;
+	
+	elog(DEBUG_elog_output, "TO-FROM_CHAR: Dump KeyWord Index:");
+	
+	for(i=0; i < KeyWord_INDEX_SIZE; i++) {
+		if (index[i] != -1) {
+			elog(DEBUG_elog_output, "\t%c: %s, ", i+32, k[ index[i] ].name);
+			count++;
+		} else {
+			free_i++;	
+			elog(DEBUG_elog_output, "\t(%d) %c %d", i, i+32, index[i]);
+		}
+	}	
+	elog(DEBUG_elog_output, "\n\t\tUsed positions: %d,\n\t\tFree positions: %d",
+		count, free_i);		
+}
+#endif
+
+/* ----------
+ * Skip TM / th in FROM_CHAR
+ * ----------
+ */
+#define SKIP_THth(_suf)		(S_THth(_suf) ? 2 : 0)   
+
+
+/* ----------
+ * Global format opton for DCH version
+ * ----------
+ */
+static int
+dch_global(int arg, char *inout, int suf, int flag, FormatNode *node) 
+{
+	switch(arg) {
+	
+	case DCH_FX:
+		DCH_global_flag	|= DCH_F_FX;
+		break;
+	}
+	return 0;
+}
+
+/* ----------
+ * Master function of TIME for: 
+ *                    TO_CHAR   - write (inout) formated string
+ *                    FROM_CHAR - scan (inout) string by course of FormatNode 
+ * ----------
+ */
+static int 
+dch_time(int arg, char *inout, int suf, int flag, FormatNode *node) 
+{
+	char	*p_inout = inout;
+
+	switch(arg) {
+	
+	case DCH_HH:	
+	case DCH_HH12:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, 
+				tm->tm_hour==0 ? 12 :
+				tm->tm_hour <13	? tm->tm_hour : tm->tm_hour-12);
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, 0);
+			if (S_FM(suf) || S_THth(suf)) return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_hour);
+				return int4len((int4) tm->tm_hour)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_hour);
+				return 1 + SKIP_THth(suf);
+			}
+				
+		}
+	case DCH_HH24:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, tm->tm_hour);
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_hour);
+				return int4len((int4) tm->tm_hour)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_hour);
+				return 1 + SKIP_THth(suf);
+			}
+		}
+	case DCH_MI:	
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, tm->tm_min);
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_min);
+				return int4len((int4) tm->tm_min)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_min);
+				return 1 + SKIP_THth(suf);
+			}
+		}
+	case DCH_SS:	
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, tm->tm_sec);
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_sec);
+				return int4len((int4) tm->tm_sec)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_sec);
+				return 1 + SKIP_THth(suf);
+			}
+		}
+	case DCH_SSSS:	
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%d", tm->tm_hour	* 3600	+
+				    tm->tm_min	* 60	+
+				    tm->tm_sec);
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			return strlen(p_inout)-1;		
+		}  else if (flag == FROM_CHAR) 
+			elog(ERROR, "to_datatime: SSSS is not supported");
+	}	
+	return 0;	
+}
+
+#define CHECK_SEQ_SEARCH(_l, _s) {					\
+	if (_l <= 0) { 							\
+		elog(ERROR, "to_datatime: bad value for %s", _s);		\
+	}								\
+}
+
+/* ----------
+ * Master of DATE for:
+ *                    TO_CHAR   - write (inout) formated string
+ *                    FROM_CHAR - scan (inout) string by course of FormatNode 
+ * ----------
+ */
+static int 
+dch_date(int arg, char *inout, int suf, int flag, FormatNode *node)
+{
+	char	buff[ DCH_CACHE_SIZE ], 		
+		*p_inout;
+	int	i, len;
+
+	p_inout = inout;
+
+	/* ----------
+	 * In the FROM-char is not difference between "January" or "JANUARY" 
+	 * or "january", all is before search convert to "first-upper".    
+	 * This convention is used for MONTH, MON, DAY, DY
+	 * ----------
+	 */
+	if (flag == FROM_CHAR) {
+		if (arg == DCH_MONTH || arg == DCH_Month || arg == DCH_month) {
+	
+			tm->tm_mon = seq_search(inout, months_full, ONE_UPPER, FULL_SIZ, &len);
+			CHECK_SEQ_SEARCH(len, "MONTH/Month/month");
+			++tm->tm_mon;
+			if (S_FM(suf))	return len-1;
+			else 		return 8;
+
+		} else if (arg == DCH_MON || arg == DCH_Mon || arg == DCH_mon) {
+		
+			tm->tm_mon = seq_search(inout, months, ONE_UPPER, MAX_MON_LEN, &len);
+			CHECK_SEQ_SEARCH(len, "MON/Mon/mon");
+			++tm->tm_mon;
+			return 2;
+		
+		} else if (arg == DCH_DAY || arg == DCH_Day || arg == DCH_day) {
+		
+			tm->tm_wday =  seq_search(inout, days, ONE_UPPER, FULL_SIZ, &len);
+			CHECK_SEQ_SEARCH(len, "DAY/Day/day");
+			if (S_FM(suf))	return len-1;
+			else 		return 8;
+			
+		} else if (arg == DCH_DY || arg == DCH_Dy || arg == DCH_dy) {
+			
+			tm->tm_wday =  seq_search(inout, days, ONE_UPPER, MAX_DY_LEN, &len);
+			CHECK_SEQ_SEARCH(len, "DY/Dy/dy");
+			return 2;
+			
+		} 
+	} 
+	
+	switch(arg) {
+	case DCH_MONTH:
+		strcpy(inout, months_full[ tm->tm_mon - 1]);		
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, str_toupper(inout));	
+		if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;
+	case DCH_Month:
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, months_full[ tm->tm_mon -1 ]);		
+	        if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;
+	case DCH_month:
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, months_full[ tm->tm_mon -1 ]);
+		*inout = tolower(*inout);
+	        if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;
+	case DCH_MON:
+		strcpy(inout, months[ tm->tm_mon -1 ]);		
+		inout = str_toupper(inout);
+		return 2;
+	case DCH_Mon:
+		strcpy(inout, months[ tm->tm_mon -1 ]);		
+		return 2;     
+	case DCH_mon:
+		strcpy(inout, months[ tm->tm_mon -1 ]);		
+		*inout = tolower(*inout);
+		return 2;
+	case DCH_MM:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, tm->tm_mon );
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) 
+				return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_mon);
+				return int4len((int4) tm->tm_mon)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_mon);
+				return 1 + SKIP_THth(suf);
+			}		
+		}	
+	case DCH_DAY:
+		strcpy(inout, days[ tm->tm_wday ]); 			        
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, str_toupper(inout)); 
+	        if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;	
+	case DCH_Day:
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, days[ tm->tm_wday]);			
+	       	if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;			
+	case DCH_day:
+		sprintf(inout, "%*s", S_FM(suf) ? 0 : -9, days[ tm->tm_wday]);			
+		*inout = tolower(*inout);
+	       	if (S_FM(suf)) return strlen(p_inout)-1;
+		else return 8;
+	case DCH_DY:	        
+		strcpy(inout, days[ tm->tm_wday]);
+		inout = str_toupper(inout);		
+		return 2;
+	case DCH_Dy:
+		strcpy(inout, days[ tm->tm_wday]);			
+		return 2;			
+	case DCH_dy:
+		strcpy(inout, days[ tm->tm_wday]);			
+		*inout = tolower(*inout);
+		return 2;
+	case DCH_DDD:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 3, tm->tm_yday);
+	        	if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) 
+				return strlen(p_inout)-1;
+			else return 2;
+		} else if (flag == FROM_CHAR) {	
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_yday);
+				return int4len((int4) tm->tm_yday)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%03d", &tm->tm_yday);
+				return 2 + SKIP_THth(suf);
+			}	
+		}
+	case DCH_DD:
+		if (flag == TO_CHAR) {	
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, tm->tm_mday);	
+	        	if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) 
+				return strlen(p_inout)-1;
+			else return 1;
+		} else if (flag == FROM_CHAR) {	
+			if (S_FM(suf)) {
+				sscanf(inout, "%d", &tm->tm_mday);
+				return int4len((int4) tm->tm_mday)-1 + SKIP_THth(suf);
+			} else {
+				sscanf(inout, "%02d", &tm->tm_mday);
+				return 1 + SKIP_THth(suf);
+			}	
+		}	
+	case DCH_D:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%d", tm->tm_wday+1);
+	        	if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) 
+				return 2;
+	        	return 0;
+	        } else if (flag == FROM_CHAR) {	
+			sscanf(inout, "%1d", &tm->tm_wday);
+			if(tm->tm_wday) --tm->tm_wday;
+			return 0 + SKIP_THth(suf);
+		} 
+	case DCH_WW:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2,  
+				(tm->tm_yday - tm->tm_wday + 7) / 7);		
+	        	if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_FM(suf) || S_THth(suf)) 
+				return strlen(p_inout)-1;
+			else return 1;
+		}  else if (flag == FROM_CHAR)
+			elog(ERROR, "to_datatime: WW is not supported");
+	case DCH_Q:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%d", (tm->tm_mon-1)/3+1);		
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) 
+				return 2;
+	        	return 0;
+	        } else if (flag == FROM_CHAR)
+			elog(ERROR, "to_datatime: Q is not supported");
+	case DCH_CC:
+		if (flag == TO_CHAR) {
+			i = tm->tm_year/100 +1;
+			if (i <= 99 && i >= -99)	
+				sprintf(inout, "%0*d", S_FM(suf) ? 0 : 2, i);
+			else
+				sprintf(inout, "%d", i);			
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			return strlen(p_inout)-1;
+		} else if (flag == FROM_CHAR)
+			elog(ERROR, "to_datatime: CC is not supported");
+	case DCH_Y_YYY:	
+		if (flag == TO_CHAR) {
+			i= YEAR_ABS(tm->tm_year) / 1000;
+			sprintf(inout, "%d,%03d", i, YEAR_ABS(tm->tm_year) -(i*1000));
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (tm->tm_year < 0)
+				strcat(inout, BC_STR);	
+			return strlen(p_inout)-1;
+		} else if (flag == FROM_CHAR) {
+			int	cc, yy;
+			sscanf(inout, "%d,%03d", &cc, &yy);
+			tm->tm_year = (cc * 1000) + yy;
+			
+			if (!S_FM(suf) && tm->tm_year <= 9999 && tm->tm_year >= -9999)	
+				len = 5; 
+			else 					
+				len = int4len((int4) tm->tm_year)+1;
+			len +=  SKIP_THth(suf);	
+			/* AC/BC */ 	
+			if (is_acdc(inout+len, &len) < 0 && tm->tm_year > 0) 
+				tm->tm_year = -(tm->tm_year);
+			if (tm->tm_year < 0) 
+				tm->tm_year = tm->tm_year+1; 
+			return len-1;
+		}	
+	case DCH_YYYY:
+		if (flag == TO_CHAR) {
+			if (tm->tm_year <= 9999 && tm->tm_year >= -9998)
+				sprintf(inout, "%0*d", S_FM(suf) ? 0 : 4,  YEAR_ABS(tm->tm_year));
+			else
+				sprintf(inout, "%d", YEAR_ABS(tm->tm_year));	
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (tm->tm_year < 0)
+				strcat(inout, BC_STR);
+			return strlen(p_inout)-1;
+		} else if (flag == FROM_CHAR) {
+			sscanf(inout, "%d", &tm->tm_year);
+			if (!S_FM(suf) && tm->tm_year <= 9999 && tm->tm_year >= -9999)	
+				len = 4;
+			else 					
+				len = int4len((int4) tm->tm_year);
+			len +=  SKIP_THth(suf);
+			/* AC/BC */ 	
+			if (is_acdc(inout+len, &len) < 0 && tm->tm_year > 0) 
+				tm->tm_year = -(tm->tm_year);
+			if (tm->tm_year < 0) 
+				tm->tm_year = tm->tm_year+1; 
+			return len-1;
+		}	
+	case DCH_YYY:
+		if (flag == TO_CHAR) {
+			sprintf(buff, "%03d", YEAR_ABS(tm->tm_year));
+			i=strlen(buff);
+			strcpy(inout, buff+(i-3));
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) return 4;
+			return 2;
+		} else if (flag == FROM_CHAR) {
+			int	yy;
+			sscanf(inout, "%03d", &yy);
+			tm->tm_year = (tm->tm_year/1000)*1000 +yy;
+			return 2 +  SKIP_THth(suf);
+		}	
+	case DCH_YY:
+		if (flag == TO_CHAR) {
+			sprintf(buff, "%02d", YEAR_ABS(tm->tm_year));
+			i=strlen(buff);
+			strcpy(inout, buff+(i-2));
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) return 3;
+			return 1;
+		} else if (flag == FROM_CHAR) {
+			int	yy;
+			sscanf(inout, "%02d", &yy);
+			tm->tm_year = (tm->tm_year/100)*100 +yy;
+			return 1 +  SKIP_THth(suf);
+		}	
+	case DCH_Y:
+		if (flag == TO_CHAR) {
+			sprintf(buff, "%1d", YEAR_ABS(tm->tm_year));
+			i=strlen(buff);
+			strcpy(inout, buff+(i-1));
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) return 2;
+			return 0;
+		} else if (flag == FROM_CHAR) {
+			int	yy;
+			sscanf(inout, "%1d", &yy);
+			tm->tm_year = (tm->tm_year/10)*10 +yy;
+			return 0 +  SKIP_THth(suf);
+		}	
+	case DCH_RM:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%*s", S_FM(suf) ? 0 : -4,   
+				rm_months[ 12 - tm->tm_mon ]);
+			if (S_FM(suf)) return strlen(p_inout)-1;
+			else return 3;
+		} else if (flag == FROM_CHAR) {
+			tm->tm_mon = 11-seq_search(inout, rm_months, ALL_UPPER, FULL_SIZ, &len);
+			CHECK_SEQ_SEARCH(len, "RM");
+			++tm->tm_mon;
+			if (S_FM(suf))	return len-1;
+			else 		return 3;
+		}	
+	case DCH_W:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%d", (tm->tm_mday - tm->tm_wday +7) / 7 );
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			if (S_THth(suf)) return 2;
+			return 0;
+		} else if (flag == FROM_CHAR)
+			elog(ERROR, "to_datatime: W is not supported");
+	case DCH_J:
+		if (flag == TO_CHAR) {
+			sprintf(inout, "%d", date2j(tm->tm_year, tm->tm_mon, tm->tm_mday));		
+			if (S_THth(suf)) 
+				str_numth(p_inout, inout, S_TH_TYPE(suf));
+			return strlen(p_inout)-1;
+		} else if (flag == FROM_CHAR)
+			elog(ERROR, "to_datatime: J is not supported");	
+	}	
+	return 0;	
+}
+
+/****************************************************************************
+ *				Public routines
+ ***************************************************************************/
+
+/* -------------------
+ * DATETIME to_char()
+ * -------------------
+ */
+text *
+datetime_to_char(DateTime *dt, text *fmt)
+{
+	static FormatNode	CacheFormat[ DCH_CACHE_SIZE +1];
+	static char		CacheStr[ DCH_CACHE_SIZE +1];
+
+	text 			*result;
+	FormatNode		*format;
+	int			flag=0;
+	char			*str;
+	double          	fsec;
+	char       		*tzn;
+	int			len=0, tz;
+
+	if ((!PointerIsValid(dt)) || (!PointerIsValid(fmt)))
+		return NULL;
+	
+	len 	= VARSIZE(fmt) - VARHDRSZ; 
+	
+	if (!len) 
+		return textin("");
+
+	tm->tm_sec	=0;	tm->tm_year	=0;
+	tm->tm_min	=0;	tm->tm_wday	=0;
+	tm->tm_hour	=0;	tm->tm_yday	=0;
+	tm->tm_mday	=1;	tm->tm_isdst	=0;
+	tm->tm_mon	=1;
+
+	if (DATETIME_IS_EPOCH(*dt))
+	{
+		datetime2tm(SetDateTime(*dt), NULL, tm, &fsec, NULL);
+	} else if (DATETIME_IS_CURRENT(*dt)) {
+		datetime2tm(SetDateTime(*dt), &tz, tm, &fsec, &tzn);
+	} else {
+		if (datetime2tm(*dt, &tz, tm, &fsec, &tzn) != 0)
+			elog(ERROR, "to_char: Unable to convert datetime to tm");
+	}
+
+	tm->tm_wday = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) + 1) % 7; 
+	tm->tm_yday = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - date2j(tm->tm_year, 1,1) +1;
+
+	/* ----------
+	 * Convert VARDATA() to string
+	 * ----------
+	 */
+	str = (char *) palloc(len + 1);    
+	memcpy(str, VARDATA(fmt), len);
+	*(str + len) = '\0'; 
+
+	/* ----------
+	 * Allocate result
+	 * ----------
+	 */
+	result	= (text *) palloc( (len * DCH_MAX_ITEM_SIZ) + 1 + VARHDRSZ);	
+
+	/* ----------
+	 * Allocate new memory if format picture is bigger than static cache 
+	 * and not use cache (call parser always) - flag=1 show this variant
+	 * ----------
+         */
+	if ( len > DCH_CACHE_SIZE ) {
+
+		format = (FormatNode *) palloc((len + 1) * sizeof(FormatNode));
+		flag  = 1;
+
+		parse_format(format, str, DCH_keywords, 
+         		     DCH_suff, DCH_index, DCH_TYPE, NULL);
+	
+		(format + len)->type = NODE_TYPE_END;		/* Paranoa? */	
+				
+	} else {
+
+		/* ----------
+		 * Use cache buffers
+		 * ----------
+		 */
+#ifdef DEBUG_TO_FROM_CHAR
+		elog(DEBUG_elog_output, "DCH_TO_CHAR() Len:            %d",  len); 
+		elog(DEBUG_elog_output, "DCH_TO_CHAR() Cache - str:   >%s<", CacheStr);
+		elog(DEBUG_elog_output, "DCH_TO_CHAR() Arg.str:       >%s<", str);
+#endif
+		flag = 0;
+
+       		if (strcmp(CacheStr, str) != 0) {
+	
+			/* ----------
+			 * Can't use the cache, must run parser and save a original 
+			 * format-picture string to the cache. 
+			 * ----------
+        		 */		
+			strncpy(CacheStr, str, DCH_CACHE_SIZE);
+				
+#ifdef DEBUG_TO_FROM_CHAR	 
+			/* dump_node(CacheFormat, len); */
+			/* dump_index(DCH_keywords, DCH_index); */
+#endif         	
+         		parse_format(CacheFormat, str, DCH_keywords, 
+         		     DCH_suff, DCH_index, DCH_TYPE, NULL);
+         		
+         		(CacheFormat + len)->type = NODE_TYPE_END;	/* Paranoa? */	
+        	}
+
+        	format = CacheFormat;
+	}
+	
+	DCH_action(format, VARDATA(result), TO_CHAR);
+
+	if (flag)
+		pfree(format);
+
+	pfree(str);
+	VARSIZE(result) = strlen(VARDATA(result)) + VARHDRSZ; 
+	return result;
+}
+
+
+/* -------------------
+ * TIMESTAMP to_char()
+ * -------------------
+ */
+text *
+timestamp_to_char(time_t dt, text *fmt)
+{
+	return datetime_to_char( timestamp_datetime(dt), fmt);
+}
+
+/* ---------------------
+ * TO_DATETIME()
+ *
+ * Make DateTime from date_str which is formated at argument 'fmt'  	 
+ * ( to_datetime is reverse to_char() )
+ * ---------------------
+ */
+DateTime *
+to_datetime(text *date_str, text *fmt)
+{
+	static FormatNode	CacheFormat[ DCH_CACHE_SIZE +1];
+	static char		CacheStr[ DCH_CACHE_SIZE +1];
+
+	FormatNode		*format;
+	int			flag=0;
+	DateTime		*result;
+	char			*str;
+	int			len=0,
+				fsec=0,
+				tz=0;
+
+	if ((!PointerIsValid(date_str)) || (!PointerIsValid(fmt)))
+		return NULL;
+	
+	tm->tm_sec	=0;	tm->tm_year	=0;
+	tm->tm_min	=0;	tm->tm_wday	=0;
+	tm->tm_hour	=0;	tm->tm_yday	=0;
+	tm->tm_mday	=1;	tm->tm_isdst	=0;
+	tm->tm_mon	=1;
+	
+	result = palloc(sizeof(DateTime));
+	
+	len 	= VARSIZE(fmt) - VARHDRSZ; 
+	
+	if (len) { 
+		
+		/* ----------
+		 * Convert VARDATA() to string
+		 * ----------
+		 */
+		str = (char *) palloc(len + 1);    
+		memcpy(str, VARDATA(fmt), len);
+		*(str + len) = '\0'; 
+
+		/* ----------
+		 * Allocate new memory if format picture is bigger than static cache 
+		 * and not use cache (call parser always) - flag=1 show this variant
+		 * ----------
+        	 */
+		if ( len > DCH_CACHE_SIZE ) {
+
+			format = (FormatNode *) palloc((len + 1) * sizeof(FormatNode));
+			flag  = 1;
+
+			parse_format(format, str, DCH_keywords, 
+         			     DCH_suff, DCH_index, DCH_TYPE, NULL);
+	
+			(format + len)->type = NODE_TYPE_END;		/* Paranoa? */	
+					
+		} else {
+	
+			/* ----------
+			 * Use cache buffers
+			 * ----------
+			 */
+#ifdef DEBUG_TO_FROM_CHAR
+			elog(DEBUG_elog_output, "DCH_TO_CHAR() Len:            %d",  len); 
+			elog(DEBUG_elog_output, "DCH_TO_CHAR() Cache - str:   >%s<", CacheStr);
+			elog(DEBUG_elog_output, "DCH_TO_CHAR() Arg.str:       >%s<", str);
+#endif
+			flag = 0;
+
+	       		if (strcmp(CacheStr, str) != 0) {
+		
+				/* ----------
+				 * Can't use the cache, must run parser and save a original 
+				 * format-picture string to the cache. 
+				 * ----------
+	        		 */		
+				strncpy(CacheStr, str, DCH_CACHE_SIZE);
+
+	         		parse_format(CacheFormat, str, DCH_keywords, 
+        	 		     DCH_suff, DCH_index, DCH_TYPE, NULL);
+         		
+        	 		(CacheFormat + len)->type = NODE_TYPE_END;	/* Paranoa? */	
+        		}
+
+        		format = CacheFormat;
+		}
+	
+		/* ----------
+		 * Call action for each node in FormatNode tree 
+		 * ----------
+		 */	 
+#ifdef DEBUG_TO_FROM_CHAR	 
+		/* dump_node(format, len); */
+#endif
+		VARDATA(date_str)[ VARSIZE(date_str) - VARHDRSZ ] = '\0';
+		DCH_action(format, VARDATA(date_str), FROM_CHAR);	
+
+		pfree(str);
+		
+		if (flag)
+			pfree(format);
+	}
+
+#ifdef DEBUG_TO_FROM_CHAR
+	NOTICE_TM; 
+#endif
+	if (IS_VALID_UTIME(tm->tm_year, tm->tm_mon, tm->tm_mday)) {
+
+#ifdef USE_POSIX_TIME
+		tm->tm_isdst = -1;
+		tm->tm_year -= 1900;
+			tm->tm_mon -= 1;
+
+#ifdef DEBUG_TO_FROM_CHAR
+		elog(DEBUG_elog_output, "TO-FROM_CHAR: Call mktime()");
+		NOTICE_TM;
+#endif
+		mktime(tm);
+		tm->tm_year += 1900;
+		tm->tm_mon += 1;
+
+#if defined(HAVE_TM_ZONE)
+		tz = -(tm->tm_gmtoff);	/* tm_gmtoff is Sun/DEC-ism */
+#elif defined(HAVE_INT_TIMEZONE)
+
+#ifdef __CYGWIN__
+		tz = (tm->tm_isdst ? (_timezone - 3600) : _timezone);
+#else
+		tz = (tm->tm_isdst ? (timezone - 3600) : timezone);
+#endif
+
+#else
+#error USE_POSIX_TIME is defined but neither HAVE_TM_ZONE or HAVE_INT_TIMEZONE are defined
+#endif
+
+#else		/* !USE_POSIX_TIME */
+		tz = CTimeZone;
+#endif
+	} else {
+		tm->tm_isdst = 0;
+		tz = 0;
+	}
+#ifdef DEBUG_TO_FROM_CHAR
+	NOTICE_TM; 
+#endif
+	if (tm2datetime(tm, fsec, &tz, result) != 0)
+        	elog(ERROR, "to_datatime: can't convert 'tm' to datetime.");
+	
+	return result;
+}
+
+/* ----------
+ * TO_DATE
+ * 	Make Date from date_str which is formated at argument 'fmt'  	 
+ * ----------
+ */
+DateADT  
+to_date(text *date_str, text *fmt)
+{
+	return datetime_date( to_datetime(date_str, fmt) );
+}
+
+/* ----------
+ * TO_TIMESTAMP 
+ * 	Make timestamp from date_str which is formated at argument 'fmt'  	 
+ * ----------
+ */
+time_t  
+to_timestamp(text *date_str, text *fmt)
+{
+	return datetime_timestamp( to_datetime(date_str, fmt) );
+}
+
+/**********************************************************************
+ *  the NUMBER version part
+ *********************************************************************/
+
+
+static char *
+fill_str(char *str, int c, int max)
+{
+	memset(str, c, max);
+	*(str+max+1) = '\0';	
+	return str;	
+}
+
+
+/* ----------
+ * Cache routine for NUM to_char version
+ * ----------
+ */
+static FormatNode *
+NUM_cache( int len, char *CacheStr, FormatNode *CacheFormat, 
+	   NUMDesc *CacheNum, NUMDesc *Num, char *pars_str, int *flag)
+{	
+	FormatNode 	*format;
+	char		*str;
+
+	/* ----------
+	 * Convert VARDATA() to string
+	 * ----------
+	 */
+	str = (char *) palloc(len + 1);    
+	memcpy(str, pars_str, len);
+	*(str + len) = '\0'; 
+
+	/* ----------
+	 * Allocate new memory if format picture is bigger than static cache 
+	 * and not use cache (call parser always) - flag=1 show this variant
+	 * ----------
+         */
+	if ( len > NUM_CACHE_SIZE ) {
+
+		format = (FormatNode *) palloc((len + 1) * sizeof(FormatNode));
+		*flag  = 1;
+		
+		Num->flag 		= 0;	
+		Num->lsign		= 0;	
+		Num->pre		= 0;	
+		Num->pos		= 0;
+         	Num->pre_lsign_num	= 0;
+		
+		parse_format(format, str, NUM_keywords, 
+         			NULL, NUM_index, NUM_TYPE, Num);
+	
+		(format + len)->type = NODE_TYPE_END;		/* Paranoa? */	
+		pfree(str);
+		return format;
+		
+	} else {
+
+		/* ----------
+		 * Use cache buffer
+		 * ----------
+		 */
+#ifdef DEBUG_TO_FROM_CHAR
+		elog(DEBUG_elog_output, "NUM_TO_CHAR() Len:            %d",  len); 
+		elog(DEBUG_elog_output, "NUM_TO_CHAR() Cache - str:   >%s<", CacheStr);
+		elog(DEBUG_elog_output, "NUM_TO_CHAR() Arg.str:       >%s<", str);
+#endif
+		*flag = 0;
+
+       		if (strcmp(CacheStr, str) != 0) {
+	
+			/* ----------
+			 * Can't use the cache, must run parser and save a original 
+			 * format-picture string to the cache. 
+			 * ----------
+        		 */		
+			strncpy(CacheStr, str, NUM_CACHE_SIZE);
+         	
+         		/* ----------                                  	
+         		 * Set zeros to CacheNum struct   	
+         		 * ----------
+         		 */                                 	
+			CacheNum->flag 		= 0;	
+			CacheNum->lsign		= 0;	
+			CacheNum->pre		= 0;	
+			CacheNum->pos		= 0;
+         		CacheNum->pre_lsign_num	= 0;
+        		CacheNum->need_locale	= 0;
+        		CacheNum->multi		= 0; 	
+         	
+#ifdef DEBUG_TO_FROM_CHAR	 
+			/* dump_node(CacheFormat, len); */
+			/* dump_index(NUM_keywords, NUM_index); */
+#endif         	
+         		parse_format(CacheFormat, str, NUM_keywords, 
+         			NULL, NUM_index, NUM_TYPE, CacheNum);
+         		
+         		(CacheFormat + len)->type = NODE_TYPE_END;	/* Paranoa? */	
+        	}
+       		/* ----------
+		 * Copy cache to used struct
+		 * ----------
+		 */
+		Num->flag 		= CacheNum->flag;
+		Num->lsign		= CacheNum->lsign;
+		Num->pre		= CacheNum->pre;
+		Num->pos		= CacheNum->pos;
+		Num->pre_lsign_num 	= CacheNum->pre_lsign_num;	
+		Num->need_locale	= CacheNum->need_locale; 
+		Num->multi		= CacheNum->multi; 	
+
+		pfree(str);
+		return CacheFormat;
+	}
+}
+
+
+static char *
+int_to_roman(int number)
+{
+	int	len	= 0, 
+		num	= 0, 
+		set	= 0;		
+	char	*p	= NULL,
+		*result,
+		numstr[5];	
+
+	result = (char *) palloc( 16 );
+	*result = '\0';
+	
+	if (number > 3999 || number < 1) {
+		fill_str(result, '#', 15);
+		return result;
+	}
+	len = sprintf(numstr, "%d", number);
+	
+	for(p=numstr; *p!='\0'; p++, --len) {
+		num = *p - 49; 			/* 48 ascii + 1 */
+		if (num < 0)
+			continue;
+		if (num == -1 && set==0)
+			continue;
+		set = 1;
+			
+		if (len > 3) { 
+			while(num-- != -1)
+				strcat(result, "M");
+		} else {
+			if (len==3)	
+				strcat(result, rm100[num]);	
+			else if (len==2)	
+				strcat(result, rm10[num]);
+			else if (len==1)	
+				strcat(result, rm1[num]);
+		}
+	}
+	return result;
+}
+
+
+
+/* ----------
+ * Locale
+ * ----------
+ */
+static void
+NUM_prepare_locale(NUMProc *Np)
+{
+
+#ifdef USE_LOCALE
+
+	if (Np->Num->need_locale) {
+
+		struct lconv	*lconv;
+
+		/* ----------
+		 * Get locales
+		 * ----------
+		 */
+		lconv = PGLC_localeconv();
+			
+		/* ---------- 	
+		 * Positive / Negative number sign
+		 * ----------
+		 */
+		if (lconv->negative_sign && *lconv->negative_sign)
+			Np->L_negative_sign = lconv->negative_sign;
+		else
+			Np->L_negative_sign = "-";
+				
+		if (lconv->positive_sign && *lconv->positive_sign)
+			Np->L_positive_sign = lconv->positive_sign;
+		else	
+			Np->L_positive_sign = "+";	
+		
+		/* ----------
+		 * Number thousands separator
+		 * ----------
+		 */	
+		if (lconv->thousands_sep && *lconv->thousands_sep)
+			Np->L_thousands_sep = lconv->thousands_sep;
+		else	
+			Np->L_thousands_sep = ",";
+		
+		/* ----------
+		 * Number decimal point
+		 * ----------
+		 */
+		if (lconv->decimal_point && *lconv->decimal_point)
+			Np->decimal = lconv->decimal_point;
+		else	
+			Np->decimal = ".";
+		
+		/* ----------
+		 * Currency symbol
+		 * ----------
+		 */
+		if (lconv->currency_symbol && *lconv->currency_symbol)	
+			Np->L_currency_symbol = lconv->currency_symbol;
+		else	
+			Np->L_currency_symbol = " ";	
+
+	
+		if (!IS_LDECIMAL(Np->Num))
+			Np->decimal = ".";	
+	} else {			  
+
+#endif
+		/* ----------
+		 * Default values
+		 * ----------
+		 */
+		Np->L_negative_sign	= "-"; 
+		Np->L_positive_sign	= "+";
+		Np->decimal	  	= ".";	
+		Np->L_thousands_sep	= ",";
+		Np->L_currency_symbol 	= " ";
+
+#ifdef USE_LOCALE
+	}
+#endif
+}
+
+/* ----------
+ * SET SIGN macro - set 'S' or 'PR' befor number 	
+ * ----------
+ */
+#define SET_SIGN(_np) {								\
+	if ((_np)->sign_wrote==0) {							\
+		if (IS_BRACKET((_np)->Num)) {					\
+										\
+			*(_np)->inout_p = '<';					\
+			++(_np)->inout_p;					\
+			(_np)->sign_wrote = 1;					\
+										\
+		} else if ((_np)->Num->lsign==NUM_LSIGN_PRE && (! IS_BRACKET((_np)->Num)) &&	\
+			(! IS_MINUS((_np)->Num)) && (! IS_PLUS((_np)->Num))) {	\
+										\
+			if ((_np)->sign=='-') 					\
+				strcpy((_np)->inout_p, (_np)->L_negative_sign);	\
+			else 							\
+				strcpy((_np)->inout_p, (_np)->L_positive_sign);	\
+			(_np)->inout_p += strlen((_np)->inout_p);		\
+			(_np)->sign_wrote = 1;					\
+										\
+		} else {							\
+			if ((_np)->sign=='-' && (_np)->Num->lsign==NUM_LSIGN_NONE \
+				&& (! IS_BRACKET((_np)->Num)) && 		\
+				(! IS_MINUS((_np)->Num)) && (! IS_PLUS((_np)->Num))) {	\
+										\
+				*(_np)->inout_p = '-';					\
+				++(_np)->inout_p;						\
+				(_np)->sign_wrote=1;					\
+										\
+			} else if ((! IS_FILLMODE((_np)->Num)) && (_np)->Num->lsign==NUM_LSIGN_NONE && \
+				(! IS_BRACKET((_np)->Num)) && (! IS_MINUS((_np)->Num)) && (! IS_PLUS((_np)->Num))) {	\
+										\
+				*(_np)->inout_p = ' ';					\
+				++(_np)->inout_p;						\
+				(_np)->sign_wrote=1;					\
+			}							\
+		}								\
+	}									\
+}
+
+/* ----------
+ * Create number
+ *	return FALSE if any work over current NUM_[0|9|D|DEC] must be skip
+ *	in NUM_processor()   
+ * ----------
+ */
+static int
+NUM_numpart(NUMProc *Np, int id) 
+{	
+	if (IS_ROMAN(Np->Num))
+		return FALSE;
+			
+	/* Note: in this elog() output not set '\0' in inout
+	elog(DEBUG_elog_output, "sign_w: %d, count: %d, plen %d, sn: %s, inout: '%s'", 
+		Np->sign_wrote, Np->count_num, Np->pre_number, Np->number_p, Np->inout);
+	*/
+
+	/* ----------
+	 * Number extraction for TO_NUMBER()
+	 * ----------
+	 */
+	if (Np->type == FROM_CHAR) {
+		if (id == NUM_9 || id == NUM_0) {
+			if (!*(Np->number+1)) {
+				if (*Np->inout_p == '-' || 
+				     (IS_BRACKET(Np->Num) && 
+				      *Np->inout_p == '<' )) {
+				
+					*Np->number = '-';
+					Np->inout_p++;
+				
+				} else if (*Np->inout_p == '+') {
+				
+					*Np->number = '+';
+					Np->inout_p++;
+				
+				} else if (*Np->inout_p == ' ' && (! IS_FILLMODE(Np->Num))) {
+					Np->inout_p++;
+				} 
+			}
+			if (isdigit((unsigned char) *Np->inout_p)) {
+				*Np->number_p = *Np->inout_p;
+				Np->number_p++;
+			} 
+		} else {
+			if (id == NUM_DEC) {
+				*Np->number_p = '.';
+				Np->number_p++;
+				
+			} else if (id == NUM_D) {
+				
+				int x = strlen(Np->decimal);
+				
+				if (!strncmp(Np->inout_p, Np->decimal, x)) {
+					Np->inout_p += x-1;
+					*Np->number_p = '.';
+					Np->number_p++;
+				}	                    
+			}
+		}	
+		return TRUE;		
+	}
+
+	/* ----------
+	 * Add blank space (pre number)
+	 * ----------
+	 */
+	if ((! IS_ZERO(Np->Num)) && (! IS_FILLMODE(Np->Num)) && Np->pre_number > 0) { 
+		*Np->inout_p = ' ';
+		--Np->pre_number;
+		--Np->count_num;
+		return TRUE;
+	} 
+	
+	/* ----------
+	 * Add zero (pre number)
+	 * ----------
+	 */
+	if (IS_ZERO(Np->Num) && Np->pre_number > 0) {
+
+		SET_SIGN(Np);
+		*Np->inout_p='0';
+		--Np->pre_number;
+		--Np->count_num;
+		return TRUE;
+	}
+	
+	if (IS_FILLMODE(Np->Num) && Np->pre_number > 0) { 
+		--Np->pre_number;
+		return FALSE;
+	}
+	
+	/* ----------
+	 * Add sign or '<' or ' '
+	 * ----------
+	 */
+	if (Np->number_p==Np->number && Np->sign_wrote==0) {
+		SET_SIGN(Np);			
+	}	
+	
+	/* ----------
+	 * Add decimal point
+	 * ----------
+	 */
+	if (*Np->number_p=='.') {
+		strcpy(Np->inout_p, Np->decimal);
+		Np->inout_p += strlen(Np->inout_p);
+		if (*Np->number_p)
+			++Np->number_p;
+		return FALSE;	
+	}
+	
+	if (*Np->number_p) { 
+	
+		/* ----------
+		 * Copy number string to inout string
+		 * ----------
+		 */
+		*Np->inout_p = *Np->number_p;
+		++Np->number_p;	
+		
+		Np->in_number = 1;
+		
+		/* ----------
+		 * Number end (set post 'S' or '>' 
+		 * ----------
+		 */
+		if ((--Np->count_num)==0) {
+		
+			if (IS_BRACKET(Np->Num)) {
+				++Np->inout_p;
+				*Np->inout_p 	= '>';
+				Np->sign_wrote	=1;
+			}
+		
+			if (Np->Num->lsign==NUM_LSIGN_POST && Np->sign_wrote==0) {
+				++Np->inout_p;
+				if (Np->sign=='-')
+					strcpy(Np->inout_p, Np->L_negative_sign);
+				else 
+					strcpy(Np->inout_p, Np->L_positive_sign);
+				Np->inout_p += strlen(Np->inout_p)-1;	
+				Np->sign_wrote = 1;
+			}
+		}
+	} else	
+		return FALSE;
+	return TRUE;
+}
+		
+/* ----------
+ *  Master function for NUMBER version.
+ *  type (variant):
+ *	TO_CHAR 		
+ *		-> create formatted string by course of FormatNode 
+ *
+ *	FROM_CHAR (TO_NUMBER) 	
+ *		-> extract number string from formatted string (reverse TO_CHAR)
+ *		
+ *		- ! this version use non-string 'inout' VARDATA(), 
+ *		  and 'plen' is used for VARSIZE()
+ *		- value 'sign' is not used	
+ *		- number is creating in Np->number and first position (*Np->number)
+ *		  in this buffer is reserved for +/- sign	
+ * ----------
+ */
+static char *
+NUM_processor (FormatNode *node, NUMDesc *Num, char *inout, char *number, 
+					int plen, int sign, int type)
+{
+	FormatNode	*n;
+	NUMProc		_Np, *Np = &_Np;
+	
+	Np->Num 	= Num;
+	Np->type	= type;
+	Np->number	= number;
+	
+	if (type == TO_CHAR) {
+		Np->pre_number 	= plen;
+		Np->sign	= sign;
+
+	} else if (type == FROM_CHAR) {	
+		Np->pre_number 	= 0; 
+		*Np->number	= ' ';	/* sign space */	
+		*(Np->number+1)	= '\0';	
+		Np->sign	= 0;
+	}	
+	
+	Np->inout	= inout;
+	
+	Np->sign_wrote	= Np->count_num	= Np->in_number	= 0;
+	
+	/* ---------- 
+	 * Roman corection 
+	 * ----------
+	 */
+	if (IS_ROMAN(Np->Num)) {		
+		if (Np->type==FROM_CHAR)
+			elog(ERROR, "to_number: RN is not supported");	
+			
+		Np->Num->lsign = Np->Num->pre_lsign_num = Np->Num->pos = 
+		Np->Num->pre = Np->pre_number = Np->sign = 0;
+		
+		if (IS_FILLMODE(Np->Num)){
+			Np->Num->flag = 0;
+			Np->Num->flag |= NUM_F_FILLMODE;
+		} else {
+			Np->Num->flag = 0;
+		}	
+		Np->Num->flag |= NUM_F_ROMAN; 
+	}
+
+	/* ---------- 
+	 * Check Num struct
+	 * ----------
+	 */
+	if (Np->sign=='+')
+		Np->Num->flag &= ~NUM_F_BRACKET;
+	
+	if (Np->Num->lsign == NUM_LSIGN_PRE && Np->Num->pre == Np->Num->pre_lsign_num)
+		Np->Num->lsign = NUM_LSIGN_POST;
+
+	/* set counter (number of all digits) */ 
+	Np->count_num = Np->Num->pos + Np->Num->pre;
+	
+	if (Np->type==TO_CHAR && IS_FILLMODE(Np->Num) && (! IS_ZERO(Np->Num)))
+		Np->count_num -= Np->pre_number;
+
+#ifdef DEBUG_TO_FROM_CHAR	
+	elog(DEBUG_elog_output, "NUM: '%s', PRE: %d, POS: %d, PLEN: %d, LSIGN: %d, DECIMAL: %d, MULTI: %d",
+			Np->number, Np->Num->pre, Np->Num->pos, 
+			Np->pre_number, Np->Num->lsign,IS_DECIMAL(Np->Num), 
+			Np->Num->multi); 
+#endif
+	/* ----------
+	 * Locale
+	 * ----------
+	 */
+	NUM_prepare_locale(Np);
+
+	/* need for DEBUG: memset(Np->inout, '\0', Np->count_num );*/
+
+	/* ----------
+	 * Processor direct cycle
+	 * ----------
+	 */
+	if (Np->type == FROM_CHAR) 
+		 Np->number_p=Np->number+1;  /* first char is space for sign */
+	else if (Np->type == TO_CHAR)
+		Np->number_p=Np->number;
+		
+	for(n=node, Np->inout_p=Np->inout; n->type != NODE_TYPE_END; n++) {
+		
+		if (Np->type == FROM_CHAR) {
+			/* ----------
+			 * Check non-string inout end
+			 * ----------
+			 */
+			if (Np->inout_p == Np->inout + plen) 
+				break;
+		}
+		
+		/* ----------
+		 * Format pictures actions
+		 * ----------
+		 */
+		if (n->type == NODE_TYPE_ACTION) {
+			
+			/* ----------
+			 * Create/reading digit/zero/blank/sing 
+			 * ----------
+			 */
+			switch( n->key->id ) {
+			
+			case NUM_9:
+			case NUM_0:
+			case NUM_DEC:
+			case NUM_D:
+			
+				if (NUM_numpart(Np, n->key->id))
+					break; 				
+				else
+					continue;
+			
+			case NUM_COMMA:
+				if (Np->type == TO_CHAR) {
+					if (!Np->in_number) {
+						if (IS_FILLMODE(Np->Num))
+							continue;
+						else
+							*Np->inout_p= ' ';
+					} else
+						*Np->inout_p = ',';
+				
+				} else if (Np->type == FROM_CHAR) {
+					if (!Np->in_number) {
+						if (IS_FILLMODE(Np->Num))
+							continue;
+					}
+				}
+				break;
+				
+			case NUM_G:
+				if (Np->type == TO_CHAR) {
+					if (!Np->in_number) {
+						if (IS_FILLMODE(Np->Num)) 
+							continue;
+						else {
+							int	x = strlen(Np->L_thousands_sep);
+							memset(Np->inout_p,  ' ', x);
+							Np->inout_p += x-1;
+						}
+					} else {
+						strcpy(Np->inout_p, Np->L_thousands_sep);
+						Np->inout_p += strlen(Np->inout_p)-1;
+					}
+					
+				} else if (Np->type == FROM_CHAR) {		
+					if (!Np->in_number) {
+						if (IS_FILLMODE(Np->Num)) 
+							continue;
+					}
+					Np->inout_p += strlen(Np->L_thousands_sep)-1;
+				}
+				break;	
+				
+			case NUM_L:
+				if (Np->type == TO_CHAR) {
+					strcpy(Np->inout_p, Np->L_currency_symbol);
+					Np->inout_p += strlen(Np->inout_p)-1;
+				
+				} else if (Np->type == FROM_CHAR) {
+					Np->inout_p += strlen(Np->L_currency_symbol)-1;
+				}
+				break;		
+				
+			case NUM_MI:
+				if (Np->sign_wrote==1 || IS_BRACKET(Np->Num)) {
+					if (Np->type == TO_CHAR)
+						continue; 
+					else
+						break;
+				}	
+				if (Np->type == TO_CHAR) {
+					if (Np->sign=='-')
+						*Np->inout_p = '-';
+					else	
+						*Np->inout_p = ' ';
+						
+				} else if (Np->type == FROM_CHAR) {
+					if (*Np->inout_p == '-')
+						*Np->number = '-';
+				}
+				Np->sign_wrote=1;
+				break;
+				
+			case NUM_PL:
+				if (Np->sign_wrote==1 || IS_BRACKET(Np->Num)) {
+					if (Np->type == TO_CHAR)
+						continue; 
+					else
+						break;
+				}
+				if (Np->type == TO_CHAR) {
+					if (Np->sign=='+')
+						*Np->inout_p = '+';
+					else
+						*Np->inout_p = ' ';
+						
+				}  else if (Np->type == FROM_CHAR) {
+					if (*Np->inout_p == '+')
+						*Np->number = '+';
+				}
+				Np->sign_wrote=1;       	
+				break;	
+				
+			case NUM_SG:
+				if (Np->sign_wrote==1 || IS_BRACKET(Np->Num)) {
+					if (Np->type == TO_CHAR)
+						continue; 
+					else
+						break;
+				}	
+				if (Np->type == TO_CHAR) 
+					*Np->inout_p = Np->sign;
+				
+				else if (Np->type == FROM_CHAR) {
+					if (*Np->inout_p == '-')
+						*Np->number = '-';
+					else if (*Np->inout_p == '+')
+						*Np->number = '+';	
+				}
+				Np->sign_wrote=1;
+				break;	
+				
+			case NUM_RN:
+				if (Np->type == FROM_CHAR) 
+					elog(ERROR, "TO_NUMBER: internal error #1");
+					
+				if (IS_FILLMODE(Np->Num)) {
+					strcpy(Np->inout_p, Np->number_p);	
+					Np->inout_p += strlen(Np->inout_p) - 1;
+				} else 
+					Np->inout_p += sprintf(Np->inout_p, "%15s", Np->number_p) -1;
+				break;	
+				
+			case NUM_rn:
+				if (Np->type == FROM_CHAR) 
+					elog(ERROR, "TO_NUMBER: internal error #2");
+				
+				if (IS_FILLMODE(Np->Num)) {
+					strcpy(Np->inout_p, str_tolower(Np->number_p));	
+					Np->inout_p += strlen(Np->inout_p) - 1;
+				} else 
+					Np->inout_p += sprintf(Np->inout_p, "%15s", str_tolower(Np->number_p)) -1;
+				break;		
+				
+			case NUM_th:
+				if (IS_ROMAN(Np->Num) || *Np->number=='#' || 
+				    Np->sign=='-' || IS_DECIMAL(Np->Num))
+						continue; 
+					
+				if (Np->type == TO_CHAR)
+					strcpy(Np->inout_p, get_th(Np->number, TH_LOWER));
+				Np->inout_p += 1;
+				break;
+				
+			case NUM_TH:
+				if (IS_ROMAN(Np->Num) || *Np->number=='#' || 
+				    Np->sign=='-' || IS_DECIMAL(Np->Num))
+					continue;			
+					
+				if (Np->type == TO_CHAR)	
+					strcpy(Np->inout_p, get_th(Np->number, TH_UPPER));
+				Np->inout_p += 1;
+				break;	
+			
+			case NUM_S:
+				/* ----------
+				 * 'S' for TO_CHAR is in NUM_numpart()
+				 * ----------
+				 */
+				if (Np->type == FROM_CHAR && Np->sign_wrote==FALSE) {
+					
+					int x = strlen(Np->L_negative_sign);
+					if (!strncmp(Np->inout_p, Np->L_negative_sign, x)) {
+						Np->inout_p += x-1;
+						*Np->number = '-';
+						break;
+					}
+					
+					x = strlen(Np->L_positive_sign);
+					if (!strncmp(Np->inout_p, Np->L_positive_sign, x)) {
+						Np->inout_p += x-1;
+						*Np->number = '+';
+						break;
+					}
+				} else
+					continue;
+				break;
+			default:
+				continue;
+				break;
+			}
+
+		} else {
+			/* ----------
+			 * Remove to output char from input in TO_CHAR
+			 * ----------
+			 */
+			if (Np->type == TO_CHAR)
+				*Np->inout_p = n->character;
+		}
+		Np->inout_p++;	
+	}
+	
+	if (Np->type == TO_CHAR) {
+		*Np->inout_p = '\0';
+		return Np->inout;
+	
+	} else if (Np->type == FROM_CHAR) {
+		*Np->number_p = '\0';
+#ifdef DEBUG_TO_FROM_CHAR
+	        elog(DEBUG_elog_output, "TO_NUMBER (number): '%s'", Np->number);
+#endif
+		return Np->number;
+	} else
+		return NULL;	
+}
+
+/* ----------
+ * MACRO: Start part of NUM - for all NUM's to_char variants
+ *	(sorry, but I hate copy same code - macro is better..)
+ * ----------
+ */
+#define NUM_TOCHAR_prepare {							\
+	if (!PointerIsValid(fmt))					\
+		return NULL;						\
+									\
+	len = VARSIZE(fmt) - VARHDRSZ; 					\
+									\
+	if (!len) 							\
+		return textin("");					\
+									\
+	result	= (text *) palloc( (len * NUM_MAX_ITEM_SIZ) + 1 + VARHDRSZ);	\
+	format = NUM_cache(len, CacheStr, CacheFormat, &CacheNum, &Num, \
+			VARDATA(fmt), &flag);				\
+}
+
+/* ----------
+ * MACRO: Finish part of NUM
+ * ----------
+ */
+#define NUM_TOCHAR_finish {							\
+									\
+	NUM_processor(format, &Num, VARDATA(result), 			\
+		numstr, plen, sign, TO_CHAR);				\
+	pfree(orgnum);							\
+									\
+	if (flag)							\
+		pfree(format);						\
+									\
+	VARSIZE(result) = strlen(VARDATA(result)) + VARHDRSZ; 	 	\
+}
+
+/* -------------------
+ * NUMERIC to_number()
+ * -------------------
+ */
+Numeric 
+numeric_to_number(text *value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	char 			*numstr;
+	int			flag=0;
+	int			len=0;
+	
+	int			scale, precision;
+	
+	if ((!PointerIsValid(value)) || (!PointerIsValid(fmt)))
+		return NULL;									
+
+	len = VARSIZE(fmt) - VARHDRSZ; 					
+									
+	if (!len) 							
+		return numeric_in(NULL, 0, 0);					
+									
+	format = NUM_cache(len, CacheStr, CacheFormat, &CacheNum, &Num, 
+			VARDATA(fmt), &flag);
+	
+	numstr	= (char *) palloc( (len * NUM_MAX_ITEM_SIZ) + 1);	
+	
+	NUM_processor(format, &Num, VARDATA(value), numstr, 
+			VARSIZE(value) - VARHDRSZ, 0, FROM_CHAR);
+	
+	scale = Num.pos;
+	precision = MAX(0, Num.pre) + scale;
+	
+	return numeric_in(numstr, 0, ((precision << 16) | scale) + VARHDRSZ);						
+}
+
+/* ------------------
+ * NUMERIC to_char()
+ * ------------------
+ */	
+text *
+numeric_to_char(Numeric value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	text 			*result;
+	int			flag=0;
+	int			len=0, plen=0, sign=0;
+	char			*numstr, *orgnum, *p;
+
+	NUM_TOCHAR_prepare;
+
+	/* ----------
+	 * On DateType depend part (numeric)
+	 * ----------
+	 */
+	if (IS_ROMAN(&Num)) {
+	 	numstr = orgnum = int_to_roman( numeric_int4( numeric_round(value, 0)));
+	 	
+	} else { 
+		Numeric val = value;
+	
+		if (IS_MULTI(&Num)) {
+			val = numeric_mul(value, 
+				numeric_power(int4_numeric(10), int4_numeric(Num.multi))); 
+			Num.pre += Num.multi;
+		}
+		
+		orgnum = numeric_out( numeric_round(val, Num.pos) );
+		if (*orgnum == '-') { 					/* < 0 */
+			sign = '-';
+			numstr = orgnum+1; 
+		} else {
+			sign = '+';
+			numstr = orgnum;
+		}
+		if ((p = strchr(numstr, '.')))
+			len = p - numstr; 
+		else
+			len = strlen(numstr);
+		
+		if (Num.pre > len) 
+			plen = Num.pre - len;
+			
+		else if (len > Num.pre) {
+			fill_str(numstr, '#', Num.pre);
+			*(numstr + Num.pre) = '.';
+			fill_str(numstr + 1 + Num.pre, '#', Num.pos);
+		} 
+	}	
+	/*dump_node(format, VARSIZE(fmt) - VARHDRSZ);*/
+	NUM_TOCHAR_finish;
+	return result;
+}
+
+/* ---------------
+ * INT4 to_char()
+ * ---------------
+ */	
+text *
+int4_to_char(int32 value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	text 			*result;
+	int			flag=0;
+	int			len=0, plen=0, sign=0;
+	char			*numstr, *orgnum;
+
+	NUM_TOCHAR_prepare;
+
+	/* ----------
+	 * On DateType depend part (int32)
+	 * ----------
+	 */
+	 if (IS_ROMAN(&Num)) {
+	 	numstr = orgnum = int_to_roman( value );
+	 	
+	 } else {
+		if (IS_MULTI(&Num)) {
+			orgnum = int4out(int4mul(value, (int32) pow( (double)10, (double) Num.multi)));
+			Num.pre += Num.multi;
+		} else
+			orgnum = int4out(value);
+		len    = strlen(orgnum);
+	
+		if (*orgnum == '-') {  					/* < 0 */
+			sign = '-';
+			--len; 	
+		} else
+			sign = '+';
+		
+		if (Num.pos) {
+			int	i;
+			
+			numstr = palloc( len + 1 + Num.pos ); 
+			strcpy(numstr, orgnum + (*orgnum == '-' ? 1 : 0));
+			*(numstr + len) = '.';	
+			
+			for(i=len+1; i<=Num.pos+len+1; i++)
+				*(numstr+i) = '0';
+			*(numstr + Num.pos + len + 1)  = '\0';
+			pfree(orgnum);
+			orgnum = numstr;  	 
+		} else
+			numstr = orgnum + (*orgnum == '-' ? 1 : 0);
+	
+		if (Num.pre > len) 
+			plen = Num.pre - len;		
+		else if (len > Num.pre) {
+			fill_str(numstr, '#', Num.pre);
+			*(numstr + Num.pre) = '.';
+			fill_str(numstr + 1 + Num.pre, '#', Num.pos);
+		}
+	}
+
+	/*dump_node(format, len);*/
+	
+	NUM_TOCHAR_finish;
+	return result;
+}
+
+/* ---------------
+ * INT8 to_char()
+ * ---------------
+ */	
+text *
+int8_to_char(int64 *value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	text 			*result;
+	int			flag=0;
+	int			len=0, plen=0, sign=0;
+	char			*numstr, *orgnum;
+
+	NUM_TOCHAR_prepare;
+
+	/* ----------
+	 * On DateType depend part (int32)
+	 * ----------
+	 */
+	if (IS_ROMAN(&Num)) {
+	 	numstr = orgnum = int_to_roman( int84( value ));
+	 	
+	} else { 
+		if (IS_MULTI(&Num)) {
+			double multi = pow( (double)10, (double) Num.multi);
+			orgnum = int8out( int8mul(value, dtoi8( (float64) &multi )));
+			Num.pre += Num.multi;
+		} else
+			orgnum = int8out(value);
+		len    = strlen(orgnum);
+		
+		if (*orgnum == '-') {  					/* < 0 */
+			sign = '-';
+			--len; 	
+		} else
+			sign = '+';
+		
+		if (Num.pos) {
+			int	i;
+			
+			numstr = palloc( len + 1 + Num.pos ); 
+			strcpy(numstr, orgnum + (*orgnum == '-' ? 1 : 0));
+			*(numstr + len) = '.';	
+			
+			for(i=len+1; i<=Num.pos+len+1; i++)
+				*(numstr+i) = '0';
+			*(numstr + Num.pos + len + 1)  = '\0';
+			pfree(orgnum);
+			orgnum = numstr;  	 
+		} else 
+			numstr = orgnum + (*orgnum == '-' ? 1 : 0);
+	
+		if (Num.pre > len) 
+			plen = Num.pre - len;		
+		else if (len > Num.pre) {
+			fill_str(numstr, '#', Num.pre);
+			*(numstr + Num.pre) = '.';
+			fill_str(numstr + 1 + Num.pre, '#', Num.pos);
+		}	
+	}
+	
+	NUM_TOCHAR_finish;
+	return result;
+}
+
+/* -----------------
+ * FLOAT4 to_char()
+ * -----------------
+ */	
+text *
+float4_to_char(float32 value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	text 			*result;
+	int			flag=0;
+	int			len=0, plen=0, sign=0;
+	char			*numstr, *orgnum, *p;
+
+	NUM_TOCHAR_prepare;
+
+	if (IS_ROMAN(&Num)) {
+	 	numstr = orgnum = int_to_roman( (int) rint( *value ));
+	 	
+	} else {
+		float32	val = value;
+	
+		if (IS_MULTI(&Num)) {
+			float multi = pow( (double) 10, (double) Num.multi);
+			val = float4mul(value, (float32) &multi);
+			Num.pre += Num.multi;
+		} 
+		
+		orgnum = (char *) palloc(MAXFLOATWIDTH + 1);
+		len = sprintf(orgnum, "%.0f",  fabs(*val));
+		if (Num.pre > len)
+			plen = Num.pre - len;
+		if (len >= FLT_DIG)
+		        Num.pos = 0;
+		else if (Num.pos + len > FLT_DIG)
+		        Num.pos = FLT_DIG - len;
+		sprintf(orgnum, "%.*f", Num.pos, *val);
+		
+		if (*orgnum == '-') { 					/* < 0 */
+			sign = '-';
+			numstr = orgnum+1; 
+		} else {
+			sign = '+';
+			numstr = orgnum;
+		}
+		if ((p = strchr(numstr, '.')))
+			len = p - numstr; 
+		else	
+			len = strlen(numstr);
+			
+		if (Num.pre > len) 
+			plen = Num.pre - len;
+			
+		else if (len > Num.pre) {
+			fill_str(numstr, '#', Num.pre);
+			*(numstr + Num.pre) = '.';
+			fill_str(numstr + 1 + Num.pre, '#', Num.pos);
+		} 
+	}
+	
+	NUM_TOCHAR_finish;
+	return result;
+}
+
+/* -----------------
+ * FLOAT8 to_char()
+ * -----------------
+ */	
+text *
+float8_to_char(float64 value, text *fmt)
+{
+	static FormatNode	CacheFormat[ NUM_CACHE_SIZE +1];
+	static char		CacheStr[ NUM_CACHE_SIZE +1];
+	static NUMDesc		CacheNum;
+	
+	NUMDesc			Num;
+	FormatNode		*format;
+	text 			*result;
+	int			flag=0;
+	int			len=0, plen=0, sign=0;
+	char			*numstr, *orgnum, *p;
+
+	NUM_TOCHAR_prepare;
+
+	if (IS_ROMAN(&Num)) {
+	 	numstr = orgnum = int_to_roman( (int) rint( *value ));
+	 	
+	} else {
+		float64	val = value;
+	
+		if (IS_MULTI(&Num)) {
+			double multi = pow( (double) 10, (double) Num.multi);
+			val = float8mul(value, (float64) &multi);
+			Num.pre += Num.multi;
+		} 
+		orgnum = (char *) palloc(MAXDOUBLEWIDTH + 1);
+		len = sprintf(orgnum, "%.0f",  fabs(*val));
+		if (Num.pre > len)
+			plen = Num.pre - len;
+		if (len >= DBL_DIG)
+		        Num.pos = 0;
+		else if (Num.pos + len > DBL_DIG)
+		        Num.pos = DBL_DIG - len;
+		sprintf(orgnum, "%.*f", Num.pos, *val);
+	
+		if (*orgnum == '-') { 					/* < 0 */
+			sign = '-';
+			numstr = orgnum+1; 
+		} else {
+			sign = '+';
+			numstr = orgnum;
+		}
+		if ((p = strchr(numstr, '.')))
+			len = p - numstr; 
+		else
+			len = strlen(numstr);
+			
+		if (Num.pre > len) 
+			plen = Num.pre - len;
+			
+		else if (len > Num.pre) {
+			fill_str(numstr, '#', Num.pre);
+			*(numstr + Num.pre) = '.';
+			fill_str(numstr + 1 + Num.pre, '#', Num.pos);
+		} 
+	}
+	
+	NUM_TOCHAR_finish;
+	return result;
+}
diff --git a/src/include/catalog/pg_proc.h b/src/include/catalog/pg_proc.h
index d731d939c5d..872057b4ce8 100644
--- a/src/include/catalog/pg_proc.h
+++ b/src/include/catalog/pg_proc.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_proc.h,v 1.116 2000/01/24 07:16:52 tgl Exp $
+ * $Id: pg_proc.h,v 1.117 2000/01/25 23:53:52 momjian Exp $
  *
  * NOTES
  *	  The script catalog/genbki.sh reads this file and generates .bki
@@ -2343,6 +2343,30 @@ DESCR("larger of two numbers");
 DATA(insert OID = 1769 ( numeric_cmp			PGUID 11 f t t 2 f 23 "1700 1700" 100 0 0 100  numeric_cmp - ));
 DESCR("compare two numbers");
 
+/* formatting */
+DATA(insert OID = 1770 ( to_char			PGUID 11 f t f 2 f  25 "1184 25" 100 0 0 100  datetime_to_char - ));
+DESCR("convert / formatting datetime to text");
+DATA(insert OID = 1771 ( to_char			PGUID 11 f t f 2 f  25 "1296 25" 100 0 0 100  timestamp_to_char - ));
+DESCR("convert / formatting timestamp to text");
+DATA(insert OID = 1772 ( to_char			PGUID 11 f t f 2 f  25 "1700 25" 100 0 0 100  numeric_to_char - ));
+DESCR("convert / formatting numeric to text");
+DATA(insert OID = 1773 ( to_char			PGUID 11 f t f 2 f  25 "23 25" 100 0 0 100  int4_to_char - ));
+DESCR("convert / formatting int4 to text");
+DATA(insert OID = 1774 ( to_char			PGUID 11 f t f 2 f  25 "20 25" 100 0 0 100  int8_to_char - ));
+DESCR("convert / formatting int8 to text");
+DATA(insert OID = 1775 ( to_char			PGUID 11 f t f 2 f  25 "700 25" 100 0 0 100  float4_to_char - ));
+DESCR("convert / formatting float4 to text");
+DATA(insert OID = 1776 ( to_char			PGUID 11 f t f 2 f  25 "701 25" 100 0 0 100  float8_to_char - ));
+DESCR("convert / formatting float8 to text");
+DATA(insert OID = 1777 ( to_number			PGUID 11 f t f 2 f  1700 "25 25" 100 0 0 100  numeric_to_number - ));
+DESCR("convert text to numeric");
+DATA(insert OID = 1778 ( to_datetime			PGUID 11 f t f 2 f  1184 "25 25" 100 0 0 100  to_datetime - ));
+DESCR("convert text to datetime");
+DATA(insert OID = 1779 ( to_timestamp			PGUID 11 f t f 2 f  1296 "25 25" 100 0 0 100  to_timestamp - ));
+DESCR("convert text to datetime");
+DATA(insert OID = 1780 ( to_date			PGUID 11 f t f 2 f  1082 "25 25" 100 0 0 100  to_date - ));
+DESCR("convert text to date");
+
 
 /*
  * prototypes for functions pg_proc.c
diff --git a/src/include/utils/formatting.h b/src/include/utils/formatting.h
new file mode 100644
index 00000000000..b5b1a5ff1fa
--- /dev/null
+++ b/src/include/utils/formatting.h
@@ -0,0 +1,31 @@
+
+/* -----------------------------------------------------------------------
+ * formatting.h
+ *
+ * $Id: formatting.h,v 1.1 2000/01/25 23:53:56 momjian Exp $
+ *
+ *
+ *   The PostgreSQL routines for a DateTime/int/float/numeric formatting, 
+ *   inspire with Oracle TO_CHAR() / TO_DATE() / TO_NUMBER() routines.  
+ *
+ *   1999 Karel Zak "Zakkr"
+ *
+ * -----------------------------------------------------------------------
+ */
+
+#ifndef _FORMATTING_H_
+#define _FORMATTING_H_
+
+extern text 	*datetime_to_char(DateTime *dt, text *fmt);
+extern text 	*timestamp_to_char(time_t dt, text *fmt);
+extern DateTime *to_datetime(text *date_str, text *fmt);
+extern time_t	to_timestamp(text *date_str, text *fmt);
+extern DateADT  to_date(text *date_str, text *fmt);
+extern Numeric	numeric_to_number(text *value, text *fmt);
+extern text 	*numeric_to_char(Numeric value, text *fmt);
+extern text 	*int4_to_char(int32 value, text *fmt);
+extern text 	*int8_to_char(int64 *value, text *fmt);
+extern text 	*float4_to_char(float32 value, text *fmt);
+extern text 	*float8_to_char(float64 value, text *fmt);
+
+#endif