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cpp/third_party/postgresql/include/pgsql/server/common/kwlookup.h
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ihtiandr9 (note)
build Win. Supported only x64
25 авг 2025, 05:07
25 авг 2025, 05:07
ea9dcd2
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/*------------------------------------------------------------------------- * * kwlookup.h * Key word lookup for PostgreSQL * * * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/common/kwlookup.h * *------------------------------------------------------------------------- */ #ifndef KWLOOKUP_H #define KWLOOKUP_H /* Hash function used by ScanKeywordLookup */ typedef int (*ScanKeywordHashFunc) (const void *key, size_t keylen); /* * This struct contains the data needed by ScanKeywordLookup to perform a * search within a set of keywords. The contents are typically generated by * src/tools/gen_keywordlist.pl from a header containing PG_KEYWORD macros. */ typedef struct ScanKeywordList { const char *kw_string; /* all keywords in order, separated by \0 */ const uint16 *kw_offsets; /* offsets to the start of each keyword */ ScanKeywordHashFunc hash; /* perfect hash function for keywords */ int num_keywords; /* number of keywords */ int max_kw_len; /* length of longest keyword */ } ScanKeywordList; extern int ScanKeywordLookup(const char *text, const ScanKeywordList *keywords); /* Code that wants to retrieve the text of the N'th keyword should use this. */ static inline const char * GetScanKeyword(int n, const ScanKeywordList *keywords) { return keywords->kw_string + keywords->kw_offsets[n]; } #endif /* KWLOOKUP_H */