tdf#79878 perf loading docx file, sax improvements

these are the smaller improvements, they make about 5% worth of
difference

- use std::vector instead of std::deque
- use std::move on pendingCharacters instead of copying
- in FastAttributeList::add, when reallocate the buffer, allocate twice
the existing size, instead of increasing to only what we need
- in FastAttributeList, create getAttributeIndex and friends, so
we can avoid iterating the attribute list more often than necessary

Change-Id: I3e3380ea50b77c6845b66e83404e245778ec06eb
Reviewed-on: https://gerrit.libreoffice.org/57021
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/sax/fastattribs.hxx b/include/sax/fastattribs.hxx
index b5fbe225ee28..029f3a12f780 100644
--- a/include/sax/fastattribs.hxx
+++ b/include/sax/fastattribs.hxx
@@ -93,6 +93,9 @@ public:
     bool getAsInteger( sal_Int32 nToken, sal_Int32 &rInt) const;
     bool getAsDouble( sal_Int32 nToken, double &rDouble) const;
     bool getAsChar( sal_Int32 nToken, const char*& rPos ) const;
+    sal_Int32 getAsIntegerByIndex( sal_Int32 nTokenIndex ) const;
+    const char* getAsCharByIndex( sal_Int32 nTokenIndex ) const;
+    OUString getValueByIndex( sal_Int32 nTokenIndex ) const;
 
     // XFastAttributeList
     virtual sal_Bool SAL_CALL hasAttribute( ::sal_Int32 Token ) override;
@@ -103,6 +106,14 @@ public:
     virtual css::uno::Sequence< css::xml::Attribute > SAL_CALL getUnknownAttributes(  ) override;
     virtual css::uno::Sequence< css::xml::FastAttribute > SAL_CALL getFastAttributes() override;
 
+    sal_Int32 getAttributeIndex( ::sal_Int32 Token )
+    {
+        for (size_t i=0; i<maAttributeTokens.size(); ++i)
+            if (maAttributeTokens[i] == Token)
+                return i;
+        return -1;
+    }
+
     static FastAttributeList* castToFastAttributeList(
                         const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList )
     {