Coverage Report

Created: 2025-01-28 06:38

/src/icu/source/i18n/standardplural.cpp
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// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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 *******************************************************************************
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 * Copyright (C) 2015, International Business Machines Corporation
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 * and others. All Rights Reserved.
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 *******************************************************************************
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 * standardplural.cpp
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 *
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 * created on: 2015dec14
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 * created by: Markus W. Scherer
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 */
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/unistr.h"
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#include "cstring.h"
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#include "standardplural.h"
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#include "uassert.h"
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U_NAMESPACE_BEGIN
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static const char *gKeywords[StandardPlural::COUNT] = {
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    "zero", "one", "two", "few", "many", "other", "=0", "=1"
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};
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const char *StandardPlural::getKeyword(Form p) {
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    U_ASSERT(ZERO <= p && p < COUNT);
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    return gKeywords[p];
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}
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int32_t StandardPlural::indexOrNegativeFromString(const char *keyword) {
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    switch (*keyword++) {
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    case 'f':
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        if (uprv_strcmp(keyword, "ew") == 0) {
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            return FEW;
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        }
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        break;
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    case 'm':
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        if (uprv_strcmp(keyword, "any") == 0) {
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            return MANY;
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        }
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        break;
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    case 'o':
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        if (uprv_strcmp(keyword, "ther") == 0) {
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            return OTHER;
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        } else if (uprv_strcmp(keyword, "ne") == 0) {
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            return ONE;
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        }
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        break;
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    case 't':
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        if (uprv_strcmp(keyword, "wo") == 0) {
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            return TWO;
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        }
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        break;
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    case 'z':
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        if (uprv_strcmp(keyword, "ero") == 0) {
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            return ZERO;
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        }
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        break;
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    case '=':
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        if (uprv_strcmp(keyword, "0") == 0) {
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            return EQ_0;
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        } else if (uprv_strcmp(keyword, "1") == 0) {
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            return EQ_1;
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        }
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        break;
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    // Also allow "0" and "1"
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    case '0':
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        if (*keyword == 0) {
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            return EQ_0;
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        }
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        break;
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    case '1':
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        if (*keyword == 0) {
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            return EQ_1;
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        }
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        break;
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    default:
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        break;
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    }
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    return -1;
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}
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static const UChar gZero[] = u"zero";
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static const UChar gOne[] = u"one";
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static const UChar gTwo[] = u"two";
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static const UChar gFew[] = u"few";
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static const UChar gMany[] = u"many";
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static const UChar gOther[] = u"other";
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static const UChar gEq0[] = u"=0";
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static const UChar gEq1[] = u"=1";
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int32_t StandardPlural::indexOrNegativeFromString(const UnicodeString &keyword) {
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    switch (keyword.length()) {
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    case 1:
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        if (keyword.charAt(0) == '0') {
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            return EQ_0;
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        } else if (keyword.charAt(0) == '1') {
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            return EQ_1;
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        }
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        break;
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    case 2:
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        if (keyword.compare(gEq0, 2) == 0) {
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            return EQ_0;
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        } else if (keyword.compare(gEq1, 2) == 0) {
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            return EQ_1;
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        }
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        break;
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    case 3:
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        if (keyword.compare(gOne, 3) == 0) {
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            return ONE;
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        } else if (keyword.compare(gTwo, 3) == 0) {
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            return TWO;
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        } else if (keyword.compare(gFew, 3) == 0) {
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            return FEW;
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        }
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        break;
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    case 4:
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        if (keyword.compare(gMany, 4) == 0) {
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            return MANY;
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        } else if (keyword.compare(gZero, 4) == 0) {
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            return ZERO;
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        }
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        break;
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    case 5:
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        if (keyword.compare(gOther, 5) == 0) {
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            return OTHER;
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        }
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        break;
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    default:
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        break;
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    }
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    return -1;
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}
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int32_t StandardPlural::indexFromString(const char *keyword, UErrorCode &errorCode) {
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    if (U_FAILURE(errorCode)) { return OTHER; }
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    int32_t i = indexOrNegativeFromString(keyword);
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    if (i >= 0) {
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        return i;
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    } else {
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        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
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        return OTHER;
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    }
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}
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int32_t StandardPlural::indexFromString(const UnicodeString &keyword, UErrorCode &errorCode) {
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    if (U_FAILURE(errorCode)) { return OTHER; }
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    int32_t i = indexOrNegativeFromString(keyword);
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    if (i >= 0) {
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        return i;
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    } else {
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        errorCode = U_ILLEGAL_ARGUMENT_ERROR;
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        return OTHER;
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    }
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}
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U_NAMESPACE_END
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#endif  // !UCONFIG_NO_FORMATTING