summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorNoel Grandin <noelgrandin@gmail.com>2020-06-15 20:32:25 +0200
committerNoel Grandin <noel.grandin@collabora.co.uk>2020-06-18 10:54:10 +0200
commitc8bed6445b244a5d9021dbd9a2ff19d80c03917b (patch)
treecdfdf457f2617b4480961009e6b50a645d48c592
parent41d75ee814d71513922a12fae82f2e7eecbcd5f5 (diff)
new json writer for LOK
we shave about 3 memory copies off in the process, and make the class play nicely with our string types. Change-Id: I1f614fb35b1de499ac99e3b33ac638ad81054bed Reviewed-on: https://gerrit.libreoffice.org/c/core/+/96393 Tested-by: Noel Grandin <noel.grandin@collabora.co.uk> Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
-rw-r--r--desktop/source/lib/init.cxx31
-rw-r--r--include/tools/json_writer.hxx86
-rw-r--r--include/vcl/ITiledRenderable.hxx4
-rw-r--r--sc/inc/chgtrack.hxx3
-rw-r--r--sc/inc/docuno.hxx2
-rw-r--r--sc/source/core/tool/chgtrack.cxx30
-rw-r--r--sc/source/ui/unoobj/docuno.cxx8
-rw-r--r--sw/inc/unotxdoc.hxx2
-rw-r--r--sw/source/uibase/uno/unotxdoc.cxx36
-rw-r--r--tools/CppunitTest_tools_test.mk1
-rw-r--r--tools/Library_tl.mk1
-rw-r--r--tools/qa/cppunit/test_json_writer.cxx57
-rw-r--r--tools/source/misc/json_writer.cxx253
13 files changed, 442 insertions, 72 deletions
diff --git a/desktop/source/lib/init.cxx b/desktop/source/lib/init.cxx
index 8b3ba76bfaf9..2843c0f5c250 100644
--- a/desktop/source/lib/init.cxx
+++ b/desktop/source/lib/init.cxx
@@ -118,6 +118,7 @@
#include <vcl/svapp.hxx>
#include <unotools/resmgr.hxx>
#include <tools/fract.hxx>
+#include <tools/json_writer.hxx>
#include <svtools/ctrltool.hxx>
#include <svtools/langtab.hxx>
#include <vcl/floatwin.hxx>
@@ -4658,47 +4659,41 @@ static char* getTrackedChanges(LibreOfficeKitDocument* pThis)
LibLODocument_Impl* pDocument = static_cast<LibLODocument_Impl*>(pThis);
uno::Reference<document::XRedlinesSupplier> xRedlinesSupplier(pDocument->mxComponent, uno::UNO_QUERY);
- std::stringstream aStream;
+ tools::JsonWriter aJson;
// We want positions of the track changes also which is not possible from
// UNO. Enable positioning information for text documents only for now, so
// construct the tracked changes JSON from inside the sw/, not here using UNO
if (doc_getDocumentType(pThis) != LOK_DOCTYPE_TEXT && xRedlinesSupplier.is())
{
+ auto redlinesNode = aJson.startNode("redlines");
uno::Reference<container::XEnumeration> xRedlines = xRedlinesSupplier->getRedlines()->createEnumeration();
- boost::property_tree::ptree aRedlines;
for (size_t nIndex = 0; xRedlines->hasMoreElements(); ++nIndex)
{
uno::Reference<beans::XPropertySet> xRedline(xRedlines->nextElement(), uno::UNO_QUERY);
- boost::property_tree::ptree aRedline;
- aRedline.put("index", nIndex);
+ auto redlineNode = aJson.startNode("");
+ aJson.put("index", nIndex);
OUString sAuthor;
xRedline->getPropertyValue("RedlineAuthor") >>= sAuthor;
- aRedline.put("author", sAuthor.toUtf8().getStr());
+ aJson.put("author", sAuthor);
OUString sType;
xRedline->getPropertyValue("RedlineType") >>= sType;
- aRedline.put("type", sType.toUtf8().getStr());
+ aJson.put("type", sType);
OUString sComment;
xRedline->getPropertyValue("RedlineComment") >>= sComment;
- aRedline.put("comment", sComment.toUtf8().getStr());
+ aJson.put("comment", sComment);
OUString sDescription;
xRedline->getPropertyValue("RedlineDescription") >>= sDescription;
- aRedline.put("description", sDescription.toUtf8().getStr());
+ aJson.put("description", sDescription);
util::DateTime aDateTime;
xRedline->getPropertyValue("RedlineDateTime") >>= aDateTime;
OUString sDateTime = utl::toISO8601(aDateTime);
- aRedline.put("dateTime", sDateTime.toUtf8().getStr());
-
- aRedlines.push_back(std::make_pair("", aRedline));
+ aJson.put("dateTime", sDateTime);
}
-
- boost::property_tree::ptree aTree;
- aTree.add_child("redlines", aRedlines);
- boost::property_tree::write_json(aStream, aTree);
}
else
{
@@ -4708,12 +4703,10 @@ static char* getTrackedChanges(LibreOfficeKitDocument* pThis)
SetLastExceptionMsg("Document doesn't support tiled rendering");
return nullptr;
}
- OUString aTrackedChanges = pDoc->getTrackedChanges();
- aStream << aTrackedChanges.toUtf8();
+ pDoc->getTrackedChanges(aJson);
}
- char* pJson = strdup(aStream.str().c_str());
- return pJson;
+ return aJson.extractData();
}
diff --git a/include/tools/json_writer.hxx b/include/tools/json_writer.hxx
new file mode 100644
index 000000000000..e811bb90e277
--- /dev/null
+++ b/include/tools/json_writer.hxx
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
+#include <tools/toolsdllapi.h>
+#include <rtl/ustring.hxx>
+#include <memory>
+
+/** Simple JSON encoder designed specifically for LibreOfficeKit purposes.
+ *
+ * (1) Minimal allocations/re-allocations/copying
+ * (2) Small/simple JSON documents
+ * (3) ascii property names
+ */
+namespace tools
+{
+class ScopedJsonWriterNode;
+
+class TOOLS_DLLPUBLIC JsonWriter
+{
+ friend class ScopedJsonWriterNode;
+
+ int mSpaceAllocated;
+ std::unique_ptr<char[]> maBuffer;
+ int mStartNodeCount;
+ char* mPos;
+ bool mbFirstFieldInNode;
+
+public:
+ JsonWriter();
+ ~JsonWriter();
+
+ [[nodiscard]] ScopedJsonWriterNode startNode(const char*);
+
+ void put(const char* pPropName, const OUString& rPropValue);
+ void put(const char* pPropName, const OString& rPropValue);
+ void put(const char* pPropName, const char* pPropVal);
+ void put(const char*, int);
+
+ /** Hands ownership of the the underlying storage buffer to the caller,
+ * after this no more document modifications may be written. */
+ char* extractData();
+
+private:
+ void endNode();
+ void addCommaBeforeField();
+
+ inline void ensureSpace(int noMoreBytesRequired)
+ {
+ int currentUsed = mPos - maBuffer.get();
+ if (currentUsed + noMoreBytesRequired >= mSpaceAllocated)
+ {
+ auto newSize = std::max(mSpaceAllocated * 2, (currentUsed + noMoreBytesRequired) * 2);
+ auto pNew = new char[newSize];
+ memcpy(pNew, maBuffer.get(), currentUsed);
+ maBuffer.reset(pNew);
+ mPos = maBuffer.get();
+ }
+ }
+};
+
+/**
+ * Auto-closes the node.
+ */
+class ScopedJsonWriterNode
+{
+ friend class JsonWriter;
+
+ JsonWriter& mrWriter;
+
+ ScopedJsonWriterNode(JsonWriter& rWriter)
+ : mrWriter(rWriter)
+ {
+ }
+
+public:
+ ~ScopedJsonWriterNode() { mrWriter.endNode(); }
+};
+};
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/include/vcl/ITiledRenderable.hxx b/include/vcl/ITiledRenderable.hxx
index 9e995216e573..e290c4960368 100644
--- a/include/vcl/ITiledRenderable.hxx
+++ b/include/vcl/ITiledRenderable.hxx
@@ -24,6 +24,7 @@ namespace com::sun::star::datatransfer::clipboard { class XClipboard; }
namespace com::sun::star::uno { template <class interface_type> class Reference; }
namespace com::sun::star::uno { template <typename > class Sequence; }
namespace vcl { class Window; }
+namespace tools { class JsonWriter; }
class VirtualDevice;
@@ -230,9 +231,8 @@ public:
/// Implementation for
/// lok::Document::getCommandValues(".uno:AcceptTrackedChanges") when there
/// is no matching UNO API.
- virtual OUString getTrackedChanges()
+ virtual void getTrackedChanges(tools::JsonWriter&)
{
- return OUString();
}
/// Implementation for
diff --git a/sc/inc/chgtrack.hxx b/sc/inc/chgtrack.hxx
index 544e2566fdba..146521538943 100644
--- a/sc/inc/chgtrack.hxx
+++ b/sc/inc/chgtrack.hxx
@@ -43,6 +43,7 @@ class ScFormulaCell;
class ScChangeAction;
class ScChangeTrack;
class ScAppOptions;
+namespace tools { class JsonWriter; }
class ScActionColorChanger
{
@@ -1146,7 +1147,7 @@ public:
SC_DLLPUBLIC ScChangeTrack* Clone( ScDocument* pDocument ) const;
static void MergeActionState( ScChangeAction* pAct, const ScChangeAction* pOtherAct );
/// Get info about all ScChangeAction elements.
- OUString GetChangeTrackInfo();
+ void GetChangeTrackInfo(tools::JsonWriter&);
};
#endif
diff --git a/sc/inc/docuno.hxx b/sc/inc/docuno.hxx
index 7c9c87a4f109..02bd4c04981d 100644
--- a/sc/inc/docuno.hxx
+++ b/sc/inc/docuno.hxx
@@ -375,7 +375,7 @@ public:
virtual PointerStyle getPointer() override;
/// @see vcl::ITiledRenderable::getTrackedChanges().
- OUString getTrackedChanges() override;
+ void getTrackedChanges(tools::JsonWriter&) override;
/// @see vcl::ITiledRenderable::setClientVisibleArea().
virtual void setClientVisibleArea(const tools::Rectangle& rRectangle) override;
diff --git a/sc/source/core/tool/chgtrack.cxx b/sc/source/core/tool/chgtrack.cxx
index 3a45a5f3be83..f734224ce3fa 100644
--- a/sc/source/core/tool/chgtrack.cxx
+++ b/sc/source/core/tool/chgtrack.cxx
@@ -47,6 +47,7 @@
#include <unotools/useroptions.hxx>
#include <unotools/datetime.hxx>
#include <sfx2/sfxsids.hrc>
+#include <tools/json_writer.hxx>
#include <algorithm>
#include <memory>
#include <boost/property_tree/json_parser.hpp>
@@ -4676,34 +4677,31 @@ void ScChangeTrack::MergeActionState( ScChangeAction* pAct, const ScChangeAction
}
/// Get info about a single ScChangeAction element.
-static void lcl_getTrackedChange(ScDocument* pDoc, int nIndex, const ScChangeAction* pAction, boost::property_tree::ptree& rRedlines)
+static void lcl_getTrackedChange(ScDocument* pDoc, int nIndex, const ScChangeAction* pAction, tools::JsonWriter& rRedlines)
{
if (pAction->GetType() == SC_CAT_CONTENT)
{
- boost::property_tree::ptree aRedline;
- aRedline.put("index", nIndex);
+ auto redlinesNode = rRedlines.startNode("");
+ rRedlines.put("index", nIndex);
- const OUString& sAuthor = pAction->GetUser();
- aRedline.put("author", sAuthor.toUtf8().getStr());
+ rRedlines.put("author", pAction->GetUser());
- aRedline.put("type", "Modify");
+ rRedlines.put("type", "Modify");
- aRedline.put("comment", pAction->GetComment().toUtf8().getStr());
+ rRedlines.put("comment", pAction->GetComment());
OUString aDescription;
pAction->GetDescription(aDescription, pDoc, true);
- aRedline.put("description", aDescription);
+ rRedlines.put("description", aDescription);
OUString sDateTime = utl::toISO8601(pAction->GetDateTimeUTC().GetUNODateTime());
- aRedline.put("dateTime", sDateTime.toUtf8().getStr());
-
- rRedlines.push_back(std::make_pair("", aRedline));
+ rRedlines.put("dateTime", sDateTime);
}
}
-OUString ScChangeTrack::GetChangeTrackInfo()
+void ScChangeTrack::GetChangeTrackInfo(tools::JsonWriter& aRedlines)
{
- boost::property_tree::ptree aRedlines;
+ auto redlinesNode = aRedlines.startNode("redlines");
ScChangeAction* pAction = GetFirst();
if (pAction)
@@ -4717,12 +4715,6 @@ OUString ScChangeTrack::GetChangeTrackInfo()
lcl_getTrackedChange(pDoc, i++, pAction, aRedlines);
}
}
-
- boost::property_tree::ptree aTree;
- aTree.add_child("redlines", aRedlines);
- std::stringstream aStream;
- boost::property_tree::write_json(aStream, aTree);
- return OUString::fromUtf8(aStream.str().c_str());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/unoobj/docuno.cxx b/sc/source/ui/unoobj/docuno.cxx
index 4592bdb9c04d..7e5dd7fe33dd 100644
--- a/sc/source/ui/unoobj/docuno.cxx
+++ b/sc/source/ui/unoobj/docuno.cxx
@@ -940,17 +940,13 @@ PointerStyle ScModelObj::getPointer()
return pGridWindow->GetPointer();
}
-OUString ScModelObj::getTrackedChanges()
+void ScModelObj::getTrackedChanges(tools::JsonWriter& rJson)
{
- OUString aRet;
-
if (pDocShell)
{
if (ScChangeTrack* pChangeTrack = pDocShell->GetDocument().GetChangeTrack())
- aRet = pChangeTrack->GetChangeTrackInfo();
+ pChangeTrack->GetChangeTrackInfo(rJson);
}
-
- return aRet;
}
void ScModelObj::setClientVisibleArea(const tools::Rectangle& rRectangle)
diff --git a/sw/inc/unotxdoc.hxx b/sw/inc/unotxdoc.hxx
index 8c6a1358520c..16780ce2edeb 100644
--- a/sw/inc/unotxdoc.hxx
+++ b/sw/inc/unotxdoc.hxx
@@ -436,7 +436,7 @@ public:
/// @see vcl::ITiledRenderable::getPointer().
virtual PointerStyle getPointer() override;
/// @see vcl::ITiledRenderable::getTrackedChanges().
- OUString getTrackedChanges() override;
+ void getTrackedChanges(tools::JsonWriter&) override;
/// @see vcl::ITiledRenderable::getTrackedChangeAuthors().
OUString getTrackedChangeAuthors() override;
diff --git a/sw/source/uibase/uno/unotxdoc.cxx b/sw/source/uibase/uno/unotxdoc.cxx
index 15be728d74af..0d934c32f39c 100644
--- a/sw/source/uibase/uno/unotxdoc.cxx
+++ b/sw/source/uibase/uno/unotxdoc.cxx
@@ -161,6 +161,7 @@
#include <redline.hxx>
#include <DocumentRedlineManager.hxx>
#include <xmloff/odffields.hxx>
+#include <tools/json_writer.hxx>
#define TWIPS_PER_PIXEL 15
@@ -3255,9 +3256,9 @@ PointerStyle SwXTextDocument::getPointer()
return pWrtShell->GetView().GetEditWin().GetPointer();
}
-OUString SwXTextDocument::getTrackedChanges()
+void SwXTextDocument::getTrackedChanges(tools::JsonWriter& rJson)
{
- boost::property_tree::ptree aTrackedChanges;
+ auto redlinesNode = rJson.startNode("redlines");
// Disable since usability is very low beyond some small number of changes.
static bool bDisableRedlineComments = getenv("DISABLE_REDLINE") != nullptr;
@@ -3267,19 +3268,17 @@ OUString SwXTextDocument::getTrackedChanges()
= pDocShell->GetDoc()->getIDocumentRedlineAccess().GetRedlineTable();
for (SwRedlineTable::size_type i = 0; i < rRedlineTable.size(); ++i)
{
- boost::property_tree::ptree aTrackedChange;
- aTrackedChange.put("index", rRedlineTable[i]->GetId());
- aTrackedChange.put("author", rRedlineTable[i]->GetAuthorString(1).toUtf8().getStr());
- aTrackedChange.put("type", SwRedlineTypeToOUString(
- rRedlineTable[i]->GetRedlineData().GetType())
- .toUtf8()
- .getStr());
- aTrackedChange.put("comment",
- rRedlineTable[i]->GetRedlineData().GetComment().toUtf8().getStr());
- aTrackedChange.put("description", rRedlineTable[i]->GetDescr().toUtf8().getStr());
+ auto redlineNode = rJson.startNode("");
+ rJson.put("index", rRedlineTable[i]->GetId());
+ rJson.put("author", rRedlineTable[i]->GetAuthorString(1));
+ rJson.put("type", SwRedlineTypeToOUString(
+ rRedlineTable[i]->GetRedlineData().GetType()));
+ rJson.put("comment",
+ rRedlineTable[i]->GetRedlineData().GetComment());
+ rJson.put("description", rRedlineTable[i]->GetDescr());
OUString sDateTime = utl::toISO8601(
rRedlineTable[i]->GetRedlineData().GetTimeStamp().GetUNODateTime());
- aTrackedChange.put("dateTime", sDateTime.toUtf8().getStr());
+ rJson.put("dateTime", sDateTime);
SwContentNode* pContentNd = rRedlineTable[i]->GetContentNode();
SwView* pView = dynamic_cast<SwView*>(SfxViewShell::Current());
@@ -3299,19 +3298,10 @@ OUString SwXTextDocument::getTrackedChanges()
aRects.push_back(rNextRect.SVRect().toString());
const OString sRects = comphelper::string::join("; ", aRects);
- aTrackedChange.put("textRange", sRects.getStr());
+ rJson.put("textRange", sRects);
}
-
- aTrackedChanges.push_back(std::make_pair("", aTrackedChange));
}
}
-
- boost::property_tree::ptree aTree;
- aTree.add_child("redlines", aTrackedChanges);
- std::stringstream aStream;
- boost::property_tree::write_json(aStream, aTree);
-
- return OUString::fromUtf8(aStream.str().c_str());
}
OUString SwXTextDocument::getTrackedChangeAuthors()
diff --git a/tools/CppunitTest_tools_test.mk b/tools/CppunitTest_tools_test.mk
index 5672be53353f..46a6cf5242cd 100644
--- a/tools/CppunitTest_tools_test.mk
+++ b/tools/CppunitTest_tools_test.mk
@@ -19,6 +19,7 @@ $(eval $(call gb_CppunitTest_add_exception_objects,tools_test, \
tools/qa/cppunit/test_time \
tools/qa/cppunit/test_fract \
tools/qa/cppunit/test_inetmime \
+ tools/qa/cppunit/test_json_writer \
tools/qa/cppunit/test_pathutils \
tools/qa/cppunit/test_reversemap \
tools/qa/cppunit/test_stream \
diff --git a/tools/Library_tl.mk b/tools/Library_tl.mk
index 233e75db0050..ecad06913ed2 100644
--- a/tools/Library_tl.mk
+++ b/tools/Library_tl.mk
@@ -69,6 +69,7 @@ $(eval $(call gb_Library_add_exception_objects,tl,\
tools/source/memtools/multisel \
tools/source/misc/cpuid \
tools/source/misc/extendapplicationenvironment \
+ tools/source/misc/json_writer \
tools/source/ref/globname \
tools/source/ref/ref \
tools/source/stream/stream \
diff --git a/tools/qa/cppunit/test_json_writer.cxx b/tools/qa/cppunit/test_json_writer.cxx
new file mode 100644
index 000000000000..c4e9331c8d17
--- /dev/null
+++ b/tools/qa/cppunit/test_json_writer.cxx
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <cppunit/extensions/HelperMacros.h>
+#include <test/bootstrapfixture.hxx>
+#include <rtl/ustring.hxx>
+#include <tools/stream.hxx>
+#include <tools/json_writer.hxx>
+
+namespace
+{
+class JsonWriterTest : public test::BootstrapFixture
+{
+public:
+ JsonWriterTest()
+ : BootstrapFixture(true, false)
+ {
+ }
+
+ virtual void setUp() override {}
+
+ void test1();
+
+ CPPUNIT_TEST_SUITE(JsonWriterTest);
+ CPPUNIT_TEST(test1);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+void JsonWriterTest::test1()
+{
+ tools::JsonWriter aJson;
+
+ {
+ auto testNode = aJson.startNode("node");
+ aJson.put("oustring", OUString("val1"));
+ aJson.put("ostring", OString("val2"));
+ aJson.put("charptr", "val3");
+ aJson.put("int", 12);
+ }
+
+ std::unique_ptr<char[]> result(aJson.extractData());
+
+ CPPUNIT_ASSERT_EQUAL(std::string("{ \"node\": { \"oustring\": \"val1\", \"ostring\": \"val2\", "
+ "\"charptr\": \"val3\", \"int\": 12}}"),
+ std::string(result.get()));
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(JsonWriterTest);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/tools/source/misc/json_writer.cxx b/tools/source/misc/json_writer.cxx
new file mode 100644
index 000000000000..a233381038c4
--- /dev/null
+++ b/tools/source/misc/json_writer.cxx
@@ -0,0 +1,253 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <tools/json_writer.hxx>
+#include <stdio.h>
+#include <cstring>
+
+namespace tools
+{
+/** These buffers are short-lived, so rather waste some space and avoid the cost of
+ * repeated calls into the allocator */
+constexpr int DEFAULT_BUFFER_SIZE = 2048;
+
+JsonWriter::JsonWriter()
+ : mSpaceAllocated(DEFAULT_BUFFER_SIZE)
+ , maBuffer(new char[mSpaceAllocated])
+ , mStartNodeCount(0)
+ , mPos(maBuffer.get())
+{
+ *mPos = '{';
+ ++mPos;
+ *mPos = ' ';
+ ++mPos;
+}
+
+JsonWriter::~JsonWriter() { assert(!maBuffer && "forgot to extract data?"); }
+
+ScopedJsonWriterNode JsonWriter::startNode(const char* pNodeName)
+{
+ auto len = strlen(pNodeName);
+ ensureSpace(len + 4);
+ *mPos = '"';
+ ++mPos;
+ memcpy(mPos, pNodeName, len);
+ mPos += len;
+ strncpy(mPos, "\": { ", 5);
+ mPos += 5;
+ mStartNodeCount++;
+ mbFirstFieldInNode = true;
+ return ScopedJsonWriterNode(*this);
+}
+
+void JsonWriter::endNode()
+{
+ assert(mStartNodeCount && "mismatched StartNode/EndNode somewhere");
+ --mStartNodeCount;
+ ensureSpace(1);
+ *mPos = '}';
+ ++mPos;
+}
+
+void JsonWriter::put(const char* pPropName, const OUString& rPropVal)
+{
+ addCommaBeforeField();
+
+ auto nPropNameLength = strlen(pPropName);
+ auto nWorstCasePropValLength = rPropVal.getLength() * 2;
+ ensureSpace(nPropNameLength + nWorstCasePropValLength + 6);
+ *mPos = '"';
+ ++mPos;
+ memcpy(mPos, pPropName, nPropNameLength);
+ mPos += nPropNameLength;
+ strncpy(mPos, "\": \"", 4);
+ mPos += 4;
+
+ // Convert from UTF-16 to UTF-8 and perform escaping
+ for (int i = 0; i < rPropVal.getLength(); ++i)
+ {
+ sal_Unicode ch = rPropVal[i];
+ if (ch == '\\')
+ {
+ *mPos = static_cast<char>(ch);
+ ++mPos;
+ *mPos = static_cast<char>(ch);
+ ++mPos;
+ }
+ else if (ch == '"')
+ {
+ *mPos = '\\';
+ ++mPos;
+ *mPos = static_cast<char>(ch);
+ ++mPos;
+ }
+ else if (ch <= 0x7F)
+ {
+ *mPos = static_cast<char>(ch);
+ ++mPos;
+ }
+ else if (ch <= 0x7FF)
+ {
+ *mPos = 0xC0 | (ch >> 6); /* 110xxxxx */
+ ++mPos;
+ *mPos = 0x80 | (ch & 0x3F); /* 10xxxxxx */
+ ++mPos;
+ }
+ else
+ {
+ *mPos = 0xE0 | (ch >> 12); /* 1110xxxx */
+ ++mPos;
+ *mPos = 0x80 | ((ch >> 6) & 0x3F); /* 10xxxxxx */
+ ++mPos;
+ *mPos = 0x80 | (ch & 0x3F); /* 10xxxxxx */
+ ++mPos;
+ }
+ }
+
+ *mPos = '"';
+ ++mPos;
+}
+
+void JsonWriter::put(const char* pPropName, const OString& rPropVal)
+{
+ addCommaBeforeField();
+
+ auto nPropNameLength = strlen(pPropName);
+ auto nWorstCasePropValLength = rPropVal.getLength();
+ ensureSpace(nPropNameLength + nWorstCasePropValLength + 6);
+ *mPos = '"';
+ ++mPos;
+ memcpy(mPos, pPropName, nPropNameLength);
+ mPos += nPropNameLength;
+ strncpy(mPos, "\": \"", 4);
+ mPos += 4;
+
+ // copy and perform escaping
+ for (int i = 0; i < rPropVal.getLength(); ++i)
+ {
+ char ch = rPropVal[i];
+ if (ch == '\\')
+ {
+ *mPos = ch;
+ ++mPos;
+ *mPos = ch;
+ ++mPos;
+ }
+ else if (ch == '"')
+ {
+ *mPos = '\\';
+ ++mPos;
+ *mPos = ch;
+ ++mPos;
+ }
+ else
+ {
+ *mPos = ch;
+ ++mPos;
+ }
+ }
+
+ *mPos = '"';
+ ++mPos;
+}
+
+void JsonWriter::put(const char* pPropName, const char* pPropVal)
+{
+ addCommaBeforeField();
+
+ auto nPropNameLength = strlen(pPropName);
+ auto nPropValLength = strlen(pPropVal);
+ auto nWorstCasePropValLength = nPropValLength * 2;
+ ensureSpace(nPropNameLength + nWorstCasePropValLength + 6);
+ *mPos = '"';
+ ++mPos;
+ memcpy(mPos, pPropName, nPropNameLength);
+ mPos += nPropNameLength;
+ strncpy(mPos, "\": \"", 4);
+ mPos += 4;
+
+ // copy and perform escaping
+ for (;;)
+ {
+ char ch = *pPropVal;
+ if (!ch)
+ break;
+ ++pPropVal;
+ if (ch == '\\')
+ {
+ *mPos = ch;
+ ++mPos;
+ *mPos = ch;
+ ++mPos;
+ }
+ else if (ch == '"')
+ {
+ *mPos = '\\';
+ ++mPos;
+ *mPos = ch;
+ ++mPos;
+ }
+ else
+ {
+ *mPos = ch;
+ ++mPos;
+ }
+ }
+
+ *mPos = '"';
+ ++mPos;
+}
+
+void JsonWriter::put(const char* pPropName, int nPropVal)
+{
+ addCommaBeforeField();
+
+ auto nPropNameLength = strlen(pPropName);
+ auto nWorstCasePropValLength = 32;
+ ensureSpace(nPropNameLength + nWorstCasePropValLength + 6);
+ *mPos = '"';
+ ++mPos;
+ memcpy(mPos, pPropName, nPropNameLength);
+ mPos += nPropNameLength;
+ strncpy(mPos, "\": ", 3);
+ mPos += 3;
+
+ mPos += sprintf(mPos, "%d", nPropVal);
+}
+
+void JsonWriter::addCommaBeforeField()
+{
+ if (mbFirstFieldInNode)
+ mbFirstFieldInNode = false;
+ else
+ {
+ *mPos = ',';
+ ++mPos;
+ *mPos = ' ';
+ ++mPos;
+ }
+}
+
+/** Hands ownership of the the underlying storage buffer to the caller,
+ * after this no more document modifications may be written. */
+char* JsonWriter::extractData()
+{
+ assert(mStartNodeCount == 0 && "did not close all nodes");
+ assert(maBuffer && "data already extracted");
+ // add closing brace
+ *mPos = '}';
+ ++mPos;
+ // null-terminate
+ *mPos = 0;
+ mPos = nullptr;
+ return maBuffer.release();
+}
+
+} // namespace tools
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */