The Tor Browser: intl/icu/source/common/patternprops.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2 *******************************************************************************

     3 *   Copyright (C) 2011, International Business Machines

     4 *   Corporation and others.  All Rights Reserved.

     5 *******************************************************************************

     6 *   file name:  patternprops.h

     7 *   encoding:   US-ASCII

     8 *   tab size:   8 (not used)

     9 *   indentation:4

    10 *

    11 *   created on: 2011mar13

    12 *   created by: Markus W. Scherer

    13 */

    15 #ifndef __PATTERNPROPS_H__

    16 #define __PATTERNPROPS_H__

    18 #include "unicode/utypes.h"

    20 U_NAMESPACE_BEGIN

    22 /**

    23  * Implements the immutable Unicode properties Pattern_Syntax and Pattern_White_Space.

    24  * Hardcodes these properties, does not load data, does not depend on other ICU classes.

    25  * <p>

    26  * Note: Both properties include ASCII as well as non-ASCII, non-Latin-1 code points,

    27  * and both properties only include BMP code points (no supplementary ones).

    28  * Pattern_Syntax includes some unassigned code points.

    29  * <p>

    30  * [:Pattern_White_Space:] =

    31  *   [\u0009-\u000D\ \u0085\u200E\u200F\u2028\u2029]

    32  * <p>

    33  * [:Pattern_Syntax:] =

    34  *   [!-/\:-@\[-\^`\{-~\u00A1-\u00A7\u00A9\u00AB\u00AC\u00AE

    35  *    \u00B0\u00B1\u00B6\u00BB\u00BF\u00D7\u00F7

    36  *    \u2010-\u2027\u2030-\u203E\u2041-\u2053\u2055-\u205E

    37  *    \u2190-\u245F\u2500-\u2775\u2794-\u2BFF\u2E00-\u2E7F

    38  *    \u3001-\u3003\u3008-\u3020\u3030\uFD3E\uFD3F\uFE45\uFE46]

    39  * @author mscherer

    40  */

    41 class U_COMMON_API PatternProps {

    42 public:

    43     /**

    44      * @return TRUE if c is a Pattern_Syntax code point.

    45      */

    46     static UBool isSyntax(UChar32 c);

    48     /**

    49      * @return TRUE if c is a Pattern_Syntax or Pattern_White_Space code point.

    50      */

    51     static UBool isSyntaxOrWhiteSpace(UChar32 c);

    53     /**

    54      * @return TRUE if c is a Pattern_White_Space character.

    55      */

    56     static UBool isWhiteSpace(UChar32 c);

    58     /**

    59      * Skips over Pattern_White_Space starting at s.

    60      * @return The smallest pointer at or after s with a non-white space character.

    61      */

    62     static const UChar *skipWhiteSpace(const UChar *s, int32_t length);

    64     /**

    65      * @return s except with leading and trailing Pattern_White_Space removed and length adjusted.

    66      */

    67     static const UChar *trimWhiteSpace(const UChar *s, int32_t &length);

    69     /**

    70      * Tests whether the string contains a "pattern identifier", that is,

    71      * whether it contains only non-Pattern_White_Space, non-Pattern_Syntax characters.

    72      * @return TRUE if there are no Pattern_White_Space or Pattern_Syntax characters in s.

    73      */

    74     static UBool isIdentifier(const UChar *s, int32_t length);

    76     /**

    77      * Skips over a "pattern identifier" starting at index s.

    78      * @return The smallest pointer at or after s with

    79      *         a Pattern_White_Space or Pattern_Syntax character.

    80      */

    81     static const UChar *skipIdentifier(const UChar *s, int32_t length);

    83 private:

    84     PatternProps();  // no constructor: all static methods

    85 };

    87 U_NAMESPACE_END

    89 #endif  // __PATTERNPROPS_H__

The Tor Browser / file revision