Added docxwrite device; uses extract library to write docx output.

Summary:
    This adds a new docxwrite device which generates docx files.

    Unlike the txtwrite device, we don't output xml for later use by
    extract-exe or store information about spans in arrays. Instead we call
    extract functions such as extract_add_char() directly.

Code changes:
    Have moved txtwrite and docxwrite common code into new devices/vector/doc_common.{c,h}.

    Shared types and functions are currently:
        txt_glyph_width_t
        txt_glyph_widths_t
        txt_glyph_widths()
        txt_get_unicode()
        txt_char_widths_to_uts()
        txt_calculate_text_size()

Building:
    By default we do not build with Extract and there will be no docxwrite
    device in the final executables.

    To build with Extract, specify the location of the extract checkout to
    build and link with.

    Unix:
        ./autogen.sh --with-extract-dir=<extract-dir>

    Windows:
        Set environmental variable EXTRACT_DIR=<extract-dir> when building,
        e.g.:
            EXTRACT_DIR=<extract-dir> devenv.com windows/GhostPDL.sln /Build Debug /Project ghostscript

    On both Unix and Windows we exit with an error message if the specified
    location does not exist.

4 files changed, 42 insertions, 2 deletions

diff --git a/windows/ghostscript.vcproj b/windows/ghostscript.vcproj
index 3c0854025..7ac40b6ef 100644
--- a/windows/ghostscript.vcproj
+++ b/windows/ghostscript.vcproj
@@ -6185,6 +6185,14 @@
 					>
 				</File>
 				<File
+					RelativePath="..\devices\vector\gdevdocxw.c"
+					>
+				</File>
+				<File
+					RelativePath="..\devices\vector\doc_common.c"
+					>
+				</File>
+				<File
 					RelativePath="..\devices\vector\gdevxps.c"
 					>
 				</File>
@@ -6329,6 +6337,10 @@
 				Name="vector (.h)"
 				>
 				<File
+					RelativePath="..\devices\vector\doc_common.h"
+					>
+				</File>
+				<File
 					RelativePath="..\devices\vector\gdevagl.h"
 					>
 				</File>
diff --git a/windows/ghostscript.vcxproj b/windows/ghostscript.vcxproj
index c318117c6..42718bb6a 100644
--- a/windows/ghostscript.vcxproj
+++ b/windows/ghostscript.vcxproj
@@ -1605,6 +1605,8 @@
     <ClCompile Include="..\devices\vector\gdevpx.c" />
     <ClCompile Include="..\devices\vector\gdevsvg.c" />
     <ClCompile Include="..\devices\vector\gdevtxtw.c" />
+    <ClCompile Include="..\devices\vector\gdevdocxw.c" />
+    <ClCompile Include="..\devices\vector\doc_common.c" />
     <ClCompile Include="..\devices\vector\gdevxps.c" />
     <ClCompile Include="..\devices\vector\whitelst.c" />
     <ClCompile Include="..\expat\lib\xmlparse.c" />
@@ -1617,6 +1619,22 @@
     <ClCompile Include="..\expat\tests\minicheck.c" />
     <ClCompile Include="..\expat\tests\runtests.c" />
     <ClCompile Include="..\expat\tests\runtestspp.cpp" />
+    <ClCompile Include="..\extract\src\alloc.c" />
+    <ClCompile Include="..\extract\src\astring.c" />
+    <ClCompile Include="..\extract\src\buffer-test.c" />
+    <ClCompile Include="..\extract\src\buffer.c" />
+    <ClCompile Include="..\extract\src\docx.c" />
+    <ClCompile Include="..\extract\src\docx_template.c" />
+    <ClCompile Include="..\extract\src\extract-exe.c" />
+    <ClCompile Include="..\extract\src\extract.c" />
+    <ClCompile Include="..\extract\src\join.c" />
+    <ClCompile Include="..\extract\src\mem.c" />
+    <ClCompile Include="..\extract\src\memento.c" />
+    <ClCompile Include="..\extract\src\misc-test.c" />
+    <ClCompile Include="..\extract\src\outf.c" />
+    <ClCompile Include="..\extract\src\xml.c" />
+    <ClCompile Include="..\extract\src\zip-test.c" />
+    <ClCompile Include="..\extract\src\zip.c" />
     <ClCompile Include="..\ijs\ijs.c" />
     <ClCompile Include="..\ijs\ijs_client.c" />
     <ClCompile Include="..\ijs\ijs_client_example.c" />
@@ -2945,6 +2963,7 @@
     <ClInclude Include="..\devices\rinkj\rinkj-dither.h" />
     <ClInclude Include="..\devices\rinkj\rinkj-epson870.h" />
     <ClInclude Include="..\devices\rinkj\rinkj-screen-eb.h" />
+    <ClInclude Include="..\devices\vector\doc_common.h" />
     <ClInclude Include="..\devices\vector\gdevagl.h" />
     <ClInclude Include="..\devices\vector\gdevpdfb.h" />
     <ClInclude Include="..\devices\vector\gdevpdfc.h" />
@@ -3474,4 +3493,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/windows/ghostscript.vcxproj.filters b/windows/ghostscript.vcxproj.filters
index 75a27e802..0e88e8531 100644
--- a/windows/ghostscript.vcxproj.filters
+++ b/windows/ghostscript.vcxproj.filters
@@ -3377,6 +3377,12 @@
     <ClCompile Include="..\devices\vector\gdevtxtw.c">
       <Filter>devices\vector</Filter>
     </ClCompile>
+    <ClCompile Include="..\devices\vector\gdevdocxw.c">
+      <Filter>devices\vector</Filter>
+    </ClCompile>
+    <ClCompile Include="..\devices\vector\doc_common.c">
+      <Filter>devices\vector</Filter>
+    </ClCompile>
     <ClCompile Include="..\devices\vector\gdevxps.c">
       <Filter>devices\vector</Filter>
     </ClCompile>
@@ -9004,4 +9010,4 @@
       <Filter>psi %28.rc%29</Filter>
     </ResourceCompile>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/windows/ghostscript_rt.vcxproj b/windows/ghostscript_rt.vcxproj
index 8370363ef..6d1a02cf3 100644
--- a/windows/ghostscript_rt.vcxproj
+++ b/windows/ghostscript_rt.vcxproj
@@ -1503,6 +1503,8 @@
     <ClCompile Include="..\devices\vector\gdevpxut.c" />
     <ClCompile Include="..\devices\vector\gdevsvg.c" />
     <ClCompile Include="..\devices\vector\gdevtxtw.c" />
+    <ClCompile Include="..\devices\vector\gdevdocxw.c" />
+    <ClCompile Include="..\devices\vector\doc_common.c" />
     <ClCompile Include="..\devices\vector\whitelst.c" />
     <ClCompile Include="..\devices\rinkj\evenbetter-rll.c" />
     <ClCompile Include="..\devices\rinkj\rinkj-byte-stream.c" />
@@ -2175,6 +2177,7 @@
     <ClInclude Include="..\devices\gdevxcmp.h" />
     <ClInclude Include="..\devices\gxfcopy.h" />
     <ClInclude Include="..\devices\minftrsz.h" />
+    <ClInclude Include="..\devices\vector\doc_common.h" />
     <ClInclude Include="..\devices\vector\gdevagl.h" />
     <ClInclude Include="..\devices\vector\gdevpdfb.h" />
     <ClInclude Include="..\devices\vector\gdevpdfc.h" />