LibreOffice Module i18npool (master)  1
chaptercollator.cxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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15  * License, Version 2.0 (the "License"); you may not use this file
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17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
21 #include <chaptercollator.hxx>
22 #include <com/sun/star/i18n/KCharacterType.hpp>
23 #include <com/sun/star/i18n/ParseResult.hpp>
24 #include <com/sun/star/i18n/CharacterClassification.hpp>
25 
26 using namespace ::com::sun::star::lang;
27 using namespace ::com::sun::star::uno;
28 using namespace ::com::sun::star::i18n;
29 
30 namespace i18npool {
31 
33 {
34  cclass = CharacterClassification::create( rxContext );
35 }
36 
38 {
39 }
40 
41 sal_Int32 SAL_CALL
42 ChapterCollator::compareString( const OUString& s1, const OUString& s2)
43 {
44  return compareSubstring(s1, 0, s1.getLength(), s2, 0, s2.getLength());
45 }
46 
47 #define DIGIT KCharacterType::DIGIT
48 
49 sal_Int32 SAL_CALL
50 ChapterCollator::compareSubstring( const OUString& str1, sal_Int32 off1, sal_Int32 len1,
51  const OUString& str2, sal_Int32 off2, sal_Int32 len2)
52 {
53  if( len1 <= 1 || len2 <= 1 || ! cclass.is() )
54  return CollatorImpl::compareSubstring( str1, off1, len1, str2, off2, len2 );
55 
56  sal_Int32 i1, i2;
57  for (i1 = len1; i1 && (cclass->getCharacterType(str1, off1+i1-1, nLocale) & DIGIT); i1--) ;
58  for (i2 = len2; i2 && (cclass->getCharacterType(str2, off2+i2-1, nLocale) & DIGIT); i2--) ;
59 
60  sal_Int32 ans = CollatorImpl::compareSubstring(str1, off1, i1, str2, off2, i2);
61  if( ans != 0 )
62  return ans;
63 
64  static const OUStringLiteral aAddAllowed(u"?");
65  ParseResult res1, res2;
66  // since parseAnyToken does not take length as parameter, we have to copy
67  // it to a temp. string.
68  OUString s1 = str1.copy(off1+i1, len1-i1), s2 = str2.copy(off2+i2, len2-i2);
69  res1 = cclass->parseAnyToken( s1, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
70  res2 = cclass->parseAnyToken( s2, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
71 
72  return res1.Value == res2.Value ? 0 : res1.Value > res2.Value ? 1 : -1;
73 }
74 
75 constexpr OUStringLiteral cChapCollator = u"com.sun.star.i18n.ChapterCollator";
76 
77 OUString SAL_CALL
79 {
80  return cChapCollator;
81 }
82 
83 sal_Bool SAL_CALL
84 ChapterCollator::supportsService(const OUString& rServiceName)
85 {
86  return cppu::supportsService(this, rServiceName);
87 }
88 
89 Sequence< OUString > SAL_CALL
91 {
92  Sequence< OUString > aRet { cChapCollator };
93  return aRet;
94 }
95 
96 }
97 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
constexpr OUStringLiteral cChapCollator
ChapterCollator(const css::uno::Reference< css::uno::XComponentContext > &rxContext)
bool CPPUHELPER_DLLPUBLIC supportsService(css::lang::XServiceInfo *implementation, rtl::OUString const &name)
virtual OUString SAL_CALL getImplementationName() override
#define DIGIT
float u
unsigned char sal_Bool
css::lang::Locale nLocale
Constant values shared between i18npool and, for example, the number formatter.
virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override
virtual ~ChapterCollator() override
sal_Int32 SAL_CALL compareString(const OUString &s1, const OUString &s2) override
sal_Int32 SAL_CALL compareSubstring(const OUString &s1, sal_Int32 off1, sal_Int32 len1, const OUString &s2, sal_Int32 off2, sal_Int32 len2) override
virtual sal_Int32 SAL_CALL compareSubstring(const OUString &s1, sal_Int32 off1, sal_Int32 len1, const OUString &s2, sal_Int32 off2, sal_Int32 len2) override
css::uno::Reference< css::i18n::XCharacterClassification > cclass
virtual sal_Bool SAL_CALL supportsService(const OUString &ServiceName) override