92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* unicode_category.h
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* Routines for determining the category of Unicode characters.
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*
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* These definitions can be used by both frontend and backend code.
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*
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* Copyright (c) 2017-2024, PostgreSQL Global Development Group
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*
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* src/include/common/unicode_category.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef UNICODE_CATEGORY_H
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#define UNICODE_CATEGORY_H
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#include "mb/pg_wchar.h"
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/*
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* Unicode General Category Values
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*
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* See: https://www.unicode.org/reports/tr44/#General_Category_Values
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*
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* The Unicode stability policy guarantees: "The enumeration of
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* General_Category property values is fixed. No new values will be
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* added". See: https://www.unicode.org/policies/stability_policy.html
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*
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* Numeric values chosen to match corresponding ICU UCharCategory.
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*/
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typedef enum pg_unicode_category
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{
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PG_U_UNASSIGNED = 0, /* Cn */
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PG_U_UPPERCASE_LETTER = 1, /* Lu */
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PG_U_LOWERCASE_LETTER = 2, /* Ll */
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PG_U_TITLECASE_LETTER = 3, /* Lt */
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PG_U_MODIFIER_LETTER = 4, /* Lm */
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PG_U_OTHER_LETTER = 5, /* Lo */
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PG_U_NONSPACING_MARK = 6, /* Mn */
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PG_U_ENCLOSING_MARK = 7, /* Me */
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PG_U_SPACING_MARK = 8, /* Mc */
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PG_U_DECIMAL_NUMBER = 9, /* Nd */
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PG_U_LETTER_NUMBER = 10, /* Nl */
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PG_U_OTHER_NUMBER = 11, /* No */
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PG_U_SPACE_SEPARATOR = 12, /* Zs */
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PG_U_LINE_SEPARATOR = 13, /* Zl */
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PG_U_PARAGRAPH_SEPARATOR = 14, /* Zp */
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PG_U_CONTROL = 15, /* Cc */
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PG_U_FORMAT = 16, /* Cf */
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PG_U_PRIVATE_USE = 17, /* Co */
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PG_U_SURROGATE = 18, /* Cs */
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PG_U_DASH_PUNCTUATION = 19, /* Pd */
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PG_U_OPEN_PUNCTUATION = 20, /* Ps */
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PG_U_CLOSE_PUNCTUATION = 21, /* Pe */
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PG_U_CONNECTOR_PUNCTUATION = 22, /* Pc */
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PG_U_OTHER_PUNCTUATION = 23, /* Po */
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PG_U_MATH_SYMBOL = 24, /* Sm */
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PG_U_CURRENCY_SYMBOL = 25, /* Sc */
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PG_U_MODIFIER_SYMBOL = 26, /* Sk */
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PG_U_OTHER_SYMBOL = 27, /* So */
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PG_U_INITIAL_PUNCTUATION = 28, /* Pi */
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PG_U_FINAL_PUNCTUATION = 29 /* Pf */
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} pg_unicode_category;
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extern pg_unicode_category unicode_category(pg_wchar ucs);
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extern const char *unicode_category_string(pg_unicode_category category);
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extern const char *unicode_category_abbrev(pg_unicode_category category);
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extern bool pg_u_prop_alphabetic(pg_wchar c);
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extern bool pg_u_prop_lowercase(pg_wchar c);
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extern bool pg_u_prop_uppercase(pg_wchar c);
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extern bool pg_u_prop_cased(pg_wchar c);
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extern bool pg_u_prop_case_ignorable(pg_wchar c);
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extern bool pg_u_prop_white_space(pg_wchar c);
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extern bool pg_u_prop_hex_digit(pg_wchar c);
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extern bool pg_u_prop_join_control(pg_wchar c);
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extern bool pg_u_isdigit(pg_wchar c, bool posix);
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extern bool pg_u_isalpha(pg_wchar c);
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extern bool pg_u_isalnum(pg_wchar c, bool posix);
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extern bool pg_u_isword(pg_wchar c);
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extern bool pg_u_isupper(pg_wchar c);
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extern bool pg_u_islower(pg_wchar c);
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extern bool pg_u_isblank(pg_wchar c);
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extern bool pg_u_iscntrl(pg_wchar c);
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extern bool pg_u_isgraph(pg_wchar c);
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extern bool pg_u_isprint(pg_wchar c);
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extern bool pg_u_ispunct(pg_wchar c, bool posix);
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extern bool pg_u_isspace(pg_wchar c);
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extern bool pg_u_isxdigit(pg_wchar c, bool posix);
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#endif /* UNICODE_CATEGORY_H */
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