Adapt the remaining OUString functions to std string_view

...for LIBO_INTERNAL_ONLY.  These had been missed by
1b43cceaea2084a0489db68cd0113508f34b6643 "Make many OUString functions take
std::u16string_view parameters" because they did not match the multi-overload
pattern that was addressed there, but they nevertheless benefit from being
changed just as well (witness e.g. the various resulting changes from copy() to
subView()).

This showed a conversion from OStringChar to std::string_view to be missing
(while the corresponding conversion form OUStringChar to std::u16string_view was
already present).

The improvement to loplugin:stringadd became necessary to fix

> [CPT] compilerplugins/clang/test/stringadd.cxx
> error: 'error' diagnostics expected but not seen:
>   File ~/lo/core/compilerplugins/clang/test/stringadd.cxx Line 43 (directive at ~/lo/core/compilerplugins/clang/test/stringadd.cxx:42): simplify by merging with the preceding assignment [loplugin:stringadd]
>   File ~/lo/core/compilerplugins/clang/test/stringadd.cxx Line 61 (directive at ~/lo/core/compilerplugins/clang/test/stringadd.cxx:60): simplify by merging with the preceding assignment [loplugin:stringadd]
> 2 errors generated.

Change-Id: Ie40de0616a66e60e289c1af0ca60aed6f9ecc279
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/107602
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/oox/dump/dumperbase.hxx b/include/oox/dump/dumperbase.hxx
index 74aa1da81213..54bbb6f6af0f 100644
--- a/include/oox/dump/dumperbase.hxx
+++ b/include/oox/dump/dumperbase.hxx
@@ -25,6 +25,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <string_view>
 #include <utility>
 #include <vector>
 
@@ -329,7 +330,7 @@ public:
     static OUString trimSpaces( const OUString& rStr );
     static OUString trimTrailingNul( const OUString& rStr );
 
-    static OString convertToUtf8( const OUString& rStr );
+    static OString convertToUtf8( std::u16string_view rStr );
     static DataType     convertToDataType( std::u16string_view rStr );
     static FormatType   convertToFormatType( std::u16string_view rStr );