text: /*-------------------------------------------------------------------------
   *
   * builtins.h
   *	  Declarations for operations on built-in types.
   *
   *
   * Portions Copyright (c) 1996-2021, 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 void 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 int	pg_itoa(int16 i, char *a);
  extern int	pg_ultoa_n(uint32 l, char *a);
  extern int	pg_ulltoa_n(uint64 l, char *a);
  extern int	pg_ltoa(int32 l, char *a);
  extern int	pg_lltoa(int64 ll, char *a);
  extern char *pg_ultostr_zeropad(char *str, int32 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 */
  #define FORMAT_TYPE_INVALID_AS_NULL	0x08	/* NULL if undefined */
  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 */
  