builtins.h

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/*-------------------------------------------------------------------------
 *
 * builtins.h
 *    Declarations for operations on built-in types.
 *
 *
 * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/builtins.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef BUILTINS_H
#define BUILTINS_H

#include "fmgr.h"
#include "nodes/nodes.h"
#include "utils/fmgrprotos.h"

/* Sign + the most decimal digits an 8-byte number could have */
#define MAXINT8LEN 20

/* bool.c */
extern bool parse_bool(const char *value, bool *result);
extern bool parse_bool_with_len(const char *value, size_t len, bool *result);

/* domains.c */
extern void domain_check(Datum value, bool isnull, Oid domainType,
                         void **extra, MemoryContext mcxt);
extern int  errdatatype(Oid datatypeOid);
extern int  errdomainconstraint(Oid datatypeOid, const char *conname);

/* encode.c */
extern uint64 hex_encode(const char *src, size_t len, char *dst);
extern uint64 hex_decode(const char *src, size_t len, char *dst);

/* int.c */
extern int2vector *buildint2vector(const int16 *int2s, int n);

/* name.c */
extern int  namecpy(Name n1, const NameData *n2);
extern int  namestrcpy(Name name, const char *str);
extern int  namestrcmp(Name name, const char *str);

/* numutils.c */
extern int32 pg_atoi(const char *s, int size, int c);
extern int16 pg_strtoint16(const char *s);
extern int32 pg_strtoint32(const char *s);
extern void pg_itoa(int16 i, char *a);
int         pg_ultoa_n(uint32 l, char *a);
int         pg_ulltoa_n(uint64 l, char *a);
extern void pg_ltoa(int32 l, char *a);
extern void pg_lltoa(int64 ll, char *a);
extern char *pg_ultostr_zeropad(char *str, uint32 value, int32 minwidth);
extern char *pg_ultostr(char *str, uint32 value);
extern uint64 pg_strtouint64(const char *str, char **endptr, int base);

/* oid.c */
extern oidvector *buildoidvector(const Oid *oids, int n);
extern Oid  oidparse(Node *node);
extern int  oid_cmp(const void *p1, const void *p2);

/* regexp.c */
extern char *regexp_fixed_prefix(text *text_re, bool case_insensitive,
                                 Oid collation, bool *exact);

/* ruleutils.c */
extern bool quote_all_identifiers;
extern const char *quote_identifier(const char *ident);
extern char *quote_qualified_identifier(const char *qualifier,
                                        const char *ident);
extern void generate_operator_clause(fmStringInfo buf,
                                     const char *leftop, Oid leftoptype,
                                     Oid opoid,
                                     const char *rightop, Oid rightoptype);

/* varchar.c */
extern int  bpchartruelen(char *s, int len);

/* popular functions from varlena.c */
extern text *cstring_to_text(const char *s);
extern text *cstring_to_text_with_len(const char *s, int len);
extern char *text_to_cstring(const text *t);
extern void text_to_cstring_buffer(const text *src, char *dst, size_t dst_len);

#define CStringGetTextDatum(s) PointerGetDatum(cstring_to_text(s))
#define TextDatumGetCString(d) text_to_cstring((text *) DatumGetPointer(d))

/* xid.c */
extern int  xidComparator(const void *arg1, const void *arg2);

/* inet_cidr_ntop.c */
extern char *pg_inet_cidr_ntop(int af, const void *src, int bits,
                               char *dst, size_t size);

/* inet_net_pton.c */
extern int  pg_inet_net_pton(int af, const char *src,
                             void *dst, size_t size);

/* network.c */
extern double convert_network_to_scalar(Datum value, Oid typid, bool *failure);
extern Datum network_scan_first(Datum in);
extern Datum network_scan_last(Datum in);
extern void clean_ipv6_addr(int addr_family, char *addr);

/* numeric.c */
extern Datum numeric_float8_no_overflow(PG_FUNCTION_ARGS);

/* format_type.c */

/* Control flags for format_type_extended */
#define FORMAT_TYPE_TYPEMOD_GIVEN   0x01    /* typemod defined by caller */
#define FORMAT_TYPE_ALLOW_INVALID   0x02    /* allow invalid types */
#define FORMAT_TYPE_FORCE_QUALIFY   0x04    /* force qualification of type */
extern char *format_type_extended(Oid type_oid, int32 typemod, bits16 flags);

extern char *format_type_be(Oid type_oid);
extern char *format_type_be_qualified(Oid type_oid);
extern char *format_type_with_typemod(Oid type_oid, int32 typemod);

extern int32 type_maximum_size(Oid type_oid, int32 typemod);

/* quote.c */
extern char *quote_literal_cstr(const char *rawstr);

#endif                          /* BUILTINS_H */