246 lines
8.5 KiB
Rust
246 lines
8.5 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[forbid(deprecated_mode)];
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pub mod icu {
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pub type UBool = u8;
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pub type UProperty = int;
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pub type UChar32 = char;
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pub const TRUE : u8 = 1u8;
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pub const FALSE : u8 = 1u8;
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pub const UCHAR_ALPHABETIC : UProperty = 0;
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pub const UCHAR_BINARY_START : UProperty = 0; // = UCHAR_ALPHABETIC
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pub const UCHAR_ASCII_HEX_DIGIT : UProperty = 1;
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pub const UCHAR_BIDI_CONTROL : UProperty = 2;
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pub const UCHAR_BIDI_MIRRORED : UProperty = 3;
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pub const UCHAR_DASH : UProperty = 4;
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pub const UCHAR_DEFAULT_IGNORABLE_CODE_POINT : UProperty = 5;
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pub const UCHAR_DEPRECATED : UProperty = 6;
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pub const UCHAR_DIACRITIC : UProperty = 7;
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pub const UCHAR_EXTENDER : UProperty = 8;
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pub const UCHAR_FULL_COMPOSITION_EXCLUSION : UProperty = 9;
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pub const UCHAR_GRAPHEME_BASE : UProperty = 10;
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pub const UCHAR_GRAPHEME_EXTEND : UProperty = 11;
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pub const UCHAR_GRAPHEME_LINK : UProperty = 12;
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pub const UCHAR_HEX_DIGIT : UProperty = 13;
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pub const UCHAR_HYPHEN : UProperty = 14;
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pub const UCHAR_ID_CONTINUE : UProperty = 15;
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pub const UCHAR_ID_START : UProperty = 16;
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pub const UCHAR_IDEOGRAPHIC : UProperty = 17;
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pub const UCHAR_IDS_BINARY_OPERATOR : UProperty = 18;
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pub const UCHAR_IDS_TRINARY_OPERATOR : UProperty = 19;
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pub const UCHAR_JOIN_CONTROL : UProperty = 20;
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pub const UCHAR_LOGICAL_ORDER_EXCEPTION : UProperty = 21;
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pub const UCHAR_LOWERCASE : UProperty = 22;
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pub const UCHAR_MATH : UProperty = 23;
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pub const UCHAR_NONCHARACTER_CODE_POINT : UProperty = 24;
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pub const UCHAR_QUOTATION_MARK : UProperty = 25;
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pub const UCHAR_RADICAL : UProperty = 26;
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pub const UCHAR_SOFT_DOTTED : UProperty = 27;
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pub const UCHAR_TERMINAL_PUNCTUATION : UProperty = 28;
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pub const UCHAR_UNIFIED_IDEOGRAPH : UProperty = 29;
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pub const UCHAR_UPPERCASE : UProperty = 30;
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pub const UCHAR_WHITE_SPACE : UProperty = 31;
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pub const UCHAR_XID_CONTINUE : UProperty = 32;
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pub const UCHAR_XID_START : UProperty = 33;
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pub const UCHAR_CASE_SENSITIVE : UProperty = 34;
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pub const UCHAR_S_TERM : UProperty = 35;
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pub const UCHAR_VARIATION_SELECTOR : UProperty = 36;
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pub const UCHAR_NFD_INERT : UProperty = 37;
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pub const UCHAR_NFKD_INERT : UProperty = 38;
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pub const UCHAR_NFC_INERT : UProperty = 39;
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pub const UCHAR_NFKC_INERT : UProperty = 40;
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pub const UCHAR_SEGMENT_STARTER : UProperty = 41;
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pub const UCHAR_PATTERN_SYNTAX : UProperty = 42;
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pub const UCHAR_PATTERN_WHITE_SPACE : UProperty = 43;
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pub const UCHAR_POSIX_ALNUM : UProperty = 44;
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pub const UCHAR_POSIX_BLANK : UProperty = 45;
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pub const UCHAR_POSIX_GRAPH : UProperty = 46;
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pub const UCHAR_POSIX_PRINT : UProperty = 47;
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pub const UCHAR_POSIX_XDIGIT : UProperty = 48;
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pub const UCHAR_CASED : UProperty = 49;
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pub const UCHAR_CASE_IGNORABLE : UProperty = 50;
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pub const UCHAR_CHANGES_WHEN_LOWERCASED : UProperty = 51;
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pub const UCHAR_CHANGES_WHEN_UPPERCASED : UProperty = 52;
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pub const UCHAR_CHANGES_WHEN_TITLECASED : UProperty = 53;
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pub const UCHAR_CHANGES_WHEN_CASEFOLDED : UProperty = 54;
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pub const UCHAR_CHANGES_WHEN_CASEMAPPED : UProperty = 55;
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pub const UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED : UProperty = 56;
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pub const UCHAR_BINARY_LIMIT : UProperty = 57;
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pub const UCHAR_BIDI_CLASS : UProperty = 0x1000;
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pub const UCHAR_INT_START : UProperty = 0x1000; // UCHAR_BIDI_CLASS
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pub const UCHAR_BLOCK : UProperty = 0x1001;
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pub const UCHAR_CANONICAL_COMBINING_CLASS : UProperty = 0x1002;
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pub const UCHAR_DECOMPOSITION_TYPE : UProperty = 0x1003;
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pub const UCHAR_EAST_ASIAN_WIDTH : UProperty = 0x1004;
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pub const UCHAR_GENERAL_CATEGORY : UProperty = 0x1005;
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pub const UCHAR_JOINING_GROUP : UProperty = 0x1006;
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pub const UCHAR_JOINING_TYPE : UProperty = 0x1007;
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pub const UCHAR_LINE_BREAK : UProperty = 0x1008;
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pub const UCHAR_NUMERIC_TYPE : UProperty = 0x1009;
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pub const UCHAR_SCRIPT : UProperty = 0x100A;
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pub const UCHAR_HANGUL_SYLLABLE_TYPE : UProperty = 0x100B;
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pub const UCHAR_NFD_QUICK_CHECK : UProperty = 0x100C;
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pub const UCHAR_NFKD_QUICK_CHECK : UProperty = 0x100D;
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pub const UCHAR_NFC_QUICK_CHECK : UProperty = 0x100E;
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pub const UCHAR_NFKC_QUICK_CHECK : UProperty = 0x100F;
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pub const UCHAR_LEAD_CANONICAL_COMBINING_CLASS : UProperty = 0x1010;
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pub const UCHAR_TRAIL_CANONICAL_COMBINING_CLASS : UProperty = 0x1011;
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pub const UCHAR_GRAPHEME_CLUSTER_BREAK : UProperty = 0x1012;
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pub const UCHAR_SENTENCE_BREAK : UProperty = 0x1013;
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pub const UCHAR_WORD_BREAK : UProperty = 0x1014;
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pub const UCHAR_INT_LIMIT : UProperty = 0x1015;
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pub const UCHAR_GENERAL_CATEGORY_MASK : UProperty = 0x2000;
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pub const UCHAR_MASK_START : UProperty = 0x2000;
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// = UCHAR_GENERAL_CATEGORY_MASK
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pub const UCHAR_MASK_LIMIT : UProperty = 0x2001;
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pub const UCHAR_NUMERIC_VALUE : UProperty = 0x3000;
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pub const UCHAR_DOUBLE_START : UProperty = 0x3000;
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// = UCHAR_NUMERIC_VALUE
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pub const UCHAR_DOUBLE_LIMIT : UProperty = 0x3001;
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pub const UCHAR_AGE : UProperty = 0x4000;
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pub const UCHAR_STRING_START : UProperty = 0x4000; // = UCHAR_AGE
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pub const UCHAR_BIDI_MIRRORING_GLYPH : UProperty = 0x4001;
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pub const UCHAR_CASE_FOLDING : UProperty = 0x4002;
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pub const UCHAR_ISO_COMMENT : UProperty = 0x4003;
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pub const UCHAR_LOWERCASE_MAPPING : UProperty = 0x4004;
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pub const UCHAR_NAME : UProperty = 0x4005;
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pub const UCHAR_SIMPLE_CASE_FOLDING : UProperty = 0x4006;
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pub const UCHAR_SIMPLE_LOWERCASE_MAPPING : UProperty = 0x4007;
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pub const UCHAR_SIMPLE_TITLECASE_MAPPING : UProperty = 0x4008;
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pub const UCHAR_SIMPLE_UPPERCASE_MAPPING : UProperty = 0x4009;
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pub const UCHAR_TITLECASE_MAPPING : UProperty = 0x400A;
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pub const UCHAR_UNICODE_1_NAME : UProperty = 0x400B;
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pub const UCHAR_UPPERCASE_MAPPING : UProperty = 0x400C;
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pub const UCHAR_STRING_LIMIT : UProperty = 0x400D;
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pub const UCHAR_SCRIPT_EXTENSIONS : UProperty = 0x7000;
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pub const UCHAR_OTHER_PROPERTY_START : UProperty = 0x7000;
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// = UCHAR_SCRIPT_EXTENSIONS;
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pub const UCHAR_OTHER_PROPERTY_LIMIT : UProperty = 0x7001;
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pub const UCHAR_INVALID_CODE : UProperty = -1;
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#[link_name = "icuuc"]
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#[abi = "cdecl"]
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pub extern mod libicu {
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pure fn u_hasBinaryProperty(c: UChar32, which: UProperty) -> UBool;
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pure fn u_isdigit(c: UChar32) -> UBool;
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pure fn u_islower(c: UChar32) -> UBool;
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pure fn u_isspace(c: UChar32) -> UBool;
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pure fn u_isupper(c: UChar32) -> UBool;
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pure fn u_tolower(c: UChar32) -> UChar32;
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pure fn u_toupper(c: UChar32) -> UChar32;
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}
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}
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pub pure fn is_XID_start(c: char) -> bool {
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return icu::libicu::u_hasBinaryProperty(c, icu::UCHAR_XID_START)
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== icu::TRUE;
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}
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pub pure fn is_XID_continue(c: char) -> bool {
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return icu::libicu::u_hasBinaryProperty(c, icu::UCHAR_XID_START)
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== icu::TRUE;
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}
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/*
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Function: is_digit
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Returns true if a character is a digit.
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*/
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pub pure fn is_digit(c: char) -> bool {
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return icu::libicu::u_isdigit(c) == icu::TRUE;
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}
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/*
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Function: is_lower
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Returns true if a character is a lowercase letter.
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*/
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pub pure fn is_lower(c: char) -> bool {
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return icu::libicu::u_islower(c) == icu::TRUE;
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}
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/*
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Function: is_space
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Returns true if a character is space.
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*/
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pub pure fn is_space(c: char) -> bool {
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return icu::libicu::u_isspace(c) == icu::TRUE;
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}
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/*
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Function: is_upper
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Returns true if a character is an uppercase letter.
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*/
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pub pure fn is_upper(c: char) -> bool {
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return icu::libicu::u_isupper(c) == icu::TRUE;
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}
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#[cfg(test)]
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mod tests {
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#[test]
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fn test_is_digit() {
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assert (unicode::icu::is_digit('0'));
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assert (!unicode::icu::is_digit('m'));
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}
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#[test]
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fn test_is_lower() {
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assert (unicode::icu::is_lower('m'));
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assert (!unicode::icu::is_lower('M'));
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}
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#[test]
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fn test_is_space() {
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assert (unicode::icu::is_space(' '));
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assert (!unicode::icu::is_space('m'));
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}
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#[test]
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fn test_is_upper() {
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assert (unicode::icu::is_upper('M'));
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assert (!unicode::icu::is_upper('m'));
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}
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}
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