54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* varlena.h
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* Functions for the variable-length built-in types.
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*
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/utils/varlena.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef VARLENA_H
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#define VARLENA_H
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#include "nodes/pg_list.h"
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#include "utils/sortsupport.h"
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extern int varstr_cmp(const char *arg1, int len1, const char *arg2, int len2, Oid collid);
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extern void varstr_sortsupport(SortSupport ssup, Oid typid, Oid collid);
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extern int varstr_levenshtein(const char *source, int slen,
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const char *target, int tlen,
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int ins_c, int del_c, int sub_c,
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bool trusted);
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extern int varstr_levenshtein_less_equal(const char *source, int slen,
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const char *target, int tlen,
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int ins_c, int del_c, int sub_c,
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int max_d, bool trusted);
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extern List *textToQualifiedNameList(text *textval);
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extern bool SplitIdentifierString(char *rawstring, char separator,
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List **namelist);
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extern bool SplitDirectoriesString(char *rawstring, char separator,
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List **namelist);
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extern bool SplitGUCList(char *rawstring, char separator,
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List **namelist);
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extern text *replace_text_regexp(text *src_text, text *pattern_text,
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text *replace_text,
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int cflags, Oid collation,
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int search_start, int n);
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typedef struct ClosestMatchState
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{
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const char *source;
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int min_d;
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int max_d;
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const char *match;
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} ClosestMatchState;
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extern void initClosestMatch(ClosestMatchState *state, const char *source, int max_d);
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extern void updateClosestMatch(ClosestMatchState *state, const char *candidate);
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extern const char *getClosestMatch(ClosestMatchState *state);
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#endif
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