resolved fdo#58503 restore awkward handling of empty locale for legacy

Partly reverts d7a5ec62e91ce3dc5b784815254218f16181f676

An empty locale was treated as LANGUAGE_NONE, effectively being
interpreted as absence or undetermined or multiple or all depending on
context. Restore this behavior as it was an undocumented feature of the
API.

Change-Id: If4b1641e776d10dea0d3037f7a62725c2b8d612c

5 files changed, 11 insertions, 11 deletions

diff --git a/lingucomponent/source/hyphenator/altlinuxhyph/hyphen/hyphenimp.cxx b/lingucomponent/source/hyphenator/altlinuxhyph/hyphen/hyphenimp.cxx
index 9bbddae2f85e..749c61571793 100644
--- a/lingucomponent/source/hyphenator/altlinuxhyph/hyphen/hyphenimp.cxx
+++ b/lingucomponent/source/hyphenator/altlinuxhyph/hyphen/hyphenimp.cxx
@@ -479,13 +479,13 @@ Reference< XHyphenatedWord > SAL_CALL Hyphenator::hyphenate( const ::rtl::OUStri
                 sal_Int16 nPos = (sal_Int16) ((nHyphenationPosAltHyph < nHyphenationPos) ?
                 nHyphenationPosAltHyph : nHyphenationPos);
                 // dicretionary hyphenation
-                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LanguageTag( aLocale ).getLanguageType(), nPos,
+                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LinguLocaleToLanguage( aLocale ), nPos,
                     aWord.replaceAt(nHyphenationPosAlt + 1, cut[nHyphenationPos], repHyph),
                     (sal_Int16) nHyphenationPosAltHyph);
             }
             else
             {
-                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LanguageTag( aLocale ).getLanguageType(),
+                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LinguLocaleToLanguage( aLocale ),
                     (sal_Int16)nHyphenationPos, aWord, (sal_Int16) nHyphenationPos);
             }
         }
@@ -536,7 +536,7 @@ Reference< XPossibleHyphens > SAL_CALL Hyphenator::createPossibleHyphens( const
     //well as "hyphenate"
     if (aWord.getLength() < minLen)
     {
-        return PossibleHyphens::CreatePossibleHyphens( aWord, LanguageTag( aLocale ).getLanguageType(),
+        return PossibleHyphens::CreatePossibleHyphens( aWord, LinguLocaleToLanguage( aLocale ),
                       aWord, Sequence< sal_Int16 >() );
     }
 
@@ -683,7 +683,7 @@ Reference< XPossibleHyphens > SAL_CALL Hyphenator::createPossibleHyphens( const
         OUString hyphenatedWord = hyphenatedWordBuffer.makeStringAndClear();
 
         Reference< XPossibleHyphens > xRes = PossibleHyphens::CreatePossibleHyphens(
-            aWord, LanguageTag( aLocale ).getLanguageType(), hyphenatedWord, aHyphPos);
+            aWord, LinguLocaleToLanguage( aLocale ), hyphenatedWord, aHyphPos);
 
         delete[] hyphens;
         delete[] lcword;
diff --git a/lingucomponent/source/lingutil/lingutil.cxx b/lingucomponent/source/lingutil/lingutil.cxx
index 194f0b753f73..8754442e471f 100644
--- a/lingucomponent/source/lingutil/lingutil.cxx
+++ b/lingucomponent/source/lingutil/lingutil.cxx
@@ -216,7 +216,7 @@ void MergeNewStyleDicsAndOldStyleDics(
         {
             LanguageType nLang = LanguageTag( aIt2->aLocaleNames[0] ).getLanguageType();
 
-            if (nLang == LANGUAGE_DONTKNOW || nLang == LANGUAGE_NONE)
+            if (nLang == LANGUAGE_DONTKNOW || linguistic::LinguIsUnspecified( nLang))
             {
                 OSL_FAIL( "old style dictionary with invalid language found!" );
                 continue;
diff --git a/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm b/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm
index d021fc02693c..3149c02d6ddd 100644
--- a/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm
+++ b/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm
@@ -296,7 +296,7 @@ sal_Bool SAL_CALL
     sal_Int16 nFailure = GetSpellFailure( rWord, rLocale );
     if (nFailure != -1)
     {
-        sal_Int16 nLang = LanguageTag( rLocale ).getLanguageType();
+        sal_Int16 nLang = LinguLocaleToLanguage( rLocale );
         // postprocess result for errors that should be ignored
         if (   (!rHelper.IsSpellUpperCase()  && IsUpper( rWord, nLang ))
             || (!rHelper.IsSpellWithDigits() && HasDigits( rWord ))
@@ -320,7 +320,7 @@ Reference< XSpellAlternatives >
     Reference< XSpellAlternatives > xRes;
         // note: mutex is held by higher up by spell which covers both
 
-    sal_Int16 nLang = LanguageTag( rLocale ).getLanguageType();
+    sal_Int16 nLang = LinguLocaleToLanguage( rLocale );
     int count;
     Sequence< OUString > aStr( 0 );
 
diff --git a/lingucomponent/source/spellcheck/spell/sspellimp.cxx b/lingucomponent/source/spellcheck/spell/sspellimp.cxx
index 160eed154c4f..273743b57057 100644
--- a/lingucomponent/source/spellcheck/spell/sspellimp.cxx
+++ b/lingucomponent/source/spellcheck/spell/sspellimp.cxx
@@ -375,7 +375,7 @@ sal_Bool SAL_CALL SpellChecker::isValid( const OUString& rWord, const Locale& rL
     sal_Int16 nFailure = GetSpellFailure( rWord, rLocale );
     if (nFailure != -1 && !rWord.match(A2OU(SPELLML_HEADER), 0))
     {
-        sal_Int16 nLang = LanguageTag( rLocale ).getLanguageType();
+        sal_Int16 nLang = LinguLocaleToLanguage( rLocale );
         // postprocess result for errors that should be ignored
         const bool bIgnoreError =
                 (!rHelper.IsSpellUpperCase()  && IsUpper( rWord, nLang )) ||
@@ -418,7 +418,7 @@ Reference< XSpellAlternatives >
 
     if (n)
     {
-        sal_Int16 nLang = LanguageTag( rLocale ).getLanguageType();
+        sal_Int16 nLang = LinguLocaleToLanguage( rLocale );
         int numsug = 0;
 
         Sequence< OUString > aStr( 0 );
diff --git a/lingucomponent/source/thesaurus/libnth/nthesimp.cxx b/lingucomponent/source/thesaurus/libnth/nthesimp.cxx
index fd4608ec85af..c4d0a7610b84 100644
--- a/lingucomponent/source/thesaurus/libnth/nthesimp.cxx
+++ b/lingucomponent/source/thesaurus/libnth/nthesimp.cxx
@@ -301,9 +301,9 @@ Sequence < Reference < ::com::sun::star::linguistic2::XMeaning > > SAL_CALL Thes
     sal_Int32 stem = 0;
     sal_Int32 stem2 = 0;
 
-    sal_Int16 nLanguage = LanguageTag( rLocale ).getLanguageType();
+    sal_Int16 nLanguage = LinguLocaleToLanguage( rLocale );
 
-    if (nLanguage == LANGUAGE_NONE || rTerm.isEmpty())
+    if (LinguIsUnspecified( nLanguage) || rTerm.isEmpty())
         return noMeanings;
 
     if (!hasLocale( rLocale ))