Add pdfioFileCreateNumber/StringObj functions (Issue #14)

added windows.h header for GetTempPathA

.github/workflows/build.yml

@@ -9,23 +9,26 @@ on:
 jobs:
   build-linux:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: update build environment
+    - name: Checkout PDFio sources
+      uses: actions/checkout@v4
+    - name: Update Build Environment
       run: sudo apt-get update --fix-missing -y
-    - name: install prerequisites
+    - name: Install Prerequisites
       run: sudo apt-get install -y cppcheck zlib1g-dev
-    - name: make
+    - name: Configure PDFio
+      run: ./configure --enable-debug --enable-sanitizer --enable-maintainer
+    - name: Build PDFio
       run: make "COMMONFLAGS=-g -fsanitize=address"
-    - name: test
+    - name: Test PDFio
       env:
         ASAN_OPTIONS: leak_check_at_exit=false
       run: make test
-    - name: clang static analyzer
+    - name: Run Clang Static Analyzer
       run: make CC=clang "GHA_ERROR=::error::" clang
-    - name: cppcheck
+    - name: Run cppcheck
       run: make "GHA_ERROR=::error::" cppcheck
 
   build-macos:
@@ -33,12 +36,15 @@ jobs:
     runs-on: macos-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: make
+    - name: Checkout PDFio sources
+      uses: actions/checkout@v4
+    - name: Configure PDFio
+      run: ./configure --enable-debug --enable-sanitizer --enable-maintainer
+    - name: Build PDFio
       run: make "COMMONFLAGS=-g -fsanitize=address"
-    - name: test
+    - name: Test PDFio
       run: make test
-    - name: clang static analyzer
+    - name: Run Clang Static Analyzer
       run: make CC=clang "GHA_ERROR=::error::" clang
 
   build-windows:
@@ -46,10 +52,11 @@ jobs:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: setup-msbuild
+    - name: Checkout PDFio sources
+      uses: actions/checkout@v4
+    - name: Setup MSBuild
       uses: microsoft/setup-msbuild@v1.0.2
-    - name: nuget restore
+    - name: Nuget Restore
       run: nuget restore pdfio.sln
-    - name: msbuild
+    - name: Build PDFio
       run: msbuild pdfio.sln

.github/workflows/codeql.yml

@@ -23,15 +23,15 @@ jobs:
         language: [ cpp ]
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
+      - name: Checkout PDFio sources
+        uses: actions/checkout@v4
         with:
           submodules: recursive
 
-      - name: Update build environment
+      - name: Update Build Environment
         run: sudo apt-get update --fix-missing -y
 
-      - name: Install prerequisites
+      - name: Install Prerequisites
         run: sudo apt-get install -y zlib1g-dev
 
       - name: Initialize CodeQL

.github/workflows/coverity.yml

@@ -7,10 +7,11 @@ jobs:
     runs-on: ubuntu-latest
     environment: Coverity
     steps:
-      - uses: actions/checkout@v2
-      - name: update build environment
+      - name: Checkout PDFio sources
+        uses: actions/checkout@v4
+      - name: Update Build Environment
         run: sudo apt-get update --fix-missing -y
-      - name: install prerequisites
+      - name: Install Prerequisites
         run: sudo apt-get install -y zlib1g-dev
       - name: Download Coverity Build Tool
         run: |
@@ -20,11 +21,15 @@ jobs:
         env:
           TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
 
-      - name: Build with cov-build
+      - name: Configure PDFio
+        run: ./configure --enable-debug --enable-maintainer
+
+      - name: Build PDFio with cov-build
         run: |
           export PATH=`pwd`/cov-analysis-linux64/bin:$PATH
           cov-build --dir cov-int make
-      - name: Submit the result to Coverity Scan
+
+      - name: Submit the Result to Coverity Scan
         run: |
           tar czvf cov.tgz cov-int
           curl \

.gitignore

@@ -5,10 +5,18 @@
 *.so.1
 /.vs
 /afl-output
+/autom4te.cache
+/config.log
+/config.status
 /doc/pdfio.epub
+/Makefile
 /packages
+/pdfio.pc
 /pdfio.xcodeproj/xcshareddata
+/pdfio-*.tar.gz*
+/pdfio-*.zip*
 /pdfiototext
 /testpdfio
 /testpdfio-*.pdf
+/testttf
 /x64

CHANGES.md

@@ -2,7 +2,58 @@ Changes in PDFio
 ================
 
 
-v1.1.0 (February 3, 2023)
+v1.2.0 (Month DD, YYYY)
+-----------------------
+
+- Added `pdfioFileCreateNumberObj` and `pdfioFileCreateStringObj` functions
+  (Issue #14)
+- Added `pdfioContentTextMeasure` function (Issue #17)
+- Added `pdfioContentTextNewLineShow` and `pdfioContentTextNewLineShowf`
+  functions (Issue #24)
+- Renamed `pdfioContentTextNextLine` to `pdfioContentTextNewLine`.
+- Now use autoconf to configure the PDFio sources (Issue #54)
+
+
+v1.1.4 (December 3, 2023)
+-------------------------
+
+- Fixed detection of encrypted strings that are too short (Issue #52)
+- Fixed a TrueType CMAP decoding bug.
+- Fixed a text rendering issue for Asian text.
+- Added a ToUnicode map for Unicode text to support text copying.
+
+
+v1.1.3 (November 15, 2023)
+--------------------------
+
+- Fixed Unicode font support (Issue #16)
+- Fixed missing initializer for 40-bit RC4 encryption (Issue #51)
+
+
+v1.1.2 (October 10, 2023)
+-------------------------
+
+- Updated `pdfioContentSetDashPattern` to support setting a solid (0 length)
+  dash pattern (Issue #41)
+- Fixed an issue with broken PDF files containing extra CR and/or LF separators
+  after the object stream token (Issue #40)
+- Fixed an issue with PDF files produced by Crystal Reports (Issue #45)
+- Fixed an issue with PDF files produced by Microsoft Reporting Services
+  (Issue #46)
+- Fixed support for compound filters where the filter array consists of a
+  single named filter (Issue #47)
+- Fixed builds on Windows - needed windows.h header for temporary files
+  (Issue #48)
+
+
+v1.1.1 (March 20, 2023)
+-----------------------
+
+- CVE-2023-28428: Fixed a potential denial-of-service with corrupt PDF files.
+- Fixed a few build issues.
+
+
+v1.1.0 (February 6, 2023)
 -------------------------
 
 - CVE-2023-24808: Fixed a potential denial-of-service with corrupt PDF files.

CONTRIBUTING.md

@@ -118,7 +118,7 @@ the source file and the copyright and licensing notice:
     //
     // Description of file contents.
     //
-    // Copyright YYYY by AUTHOR.
+    // Copyright © YYYY by AUTHOR.
     //
     // Licensed under Apache License v2.0.  See the file "LICENSE" for more
     // information.
@@ -330,7 +330,7 @@ typedef, for example:
 
 All constant names are uppercase with underscores between words, e.g.,
 `PDFIO_THIS_CONSTANT`, `PDFIO_THAT_CONSTANT`, etc.  Constants begin with the
-"PDFio\_" prefix to avoid conflicts with system constants.  Private constants
+"PDFIO\_" prefix to avoid conflicts with system constants.  Private constants
 start with an underscore, e.g., `_PDFIO_THIS_CONSTANT`,
 `_PDFIO_THAT_CONSTANT`, etc.
 
@@ -369,11 +369,12 @@ extensions MUST NOT be used.
 The following variables are defined in the makefile:
 
 - `AR`; the static library archiver command,
-- `ARFLAGS`; options for the static library archiver command,
+- `ARFLAGS`; options for the static library archiver,
 - `CC`; the C compiler command,
-- `CFLAGS`; options for the C compiler command,
+- `CFLAGS`; options for the C compiler,
 - `CODESIGN_IDENTITY`: the code signing identity,
 - `COMMONFLAGS`; common compiler optimization options,
+- `CPPFLAGS`; options for the C preprocessor,
 - `DESTDIR`/`DSTROOT`: the destination root directory when installing.
 - `DSO`; the shared library building command,
 - `DSOFLAGS`; options for the shared library building command,
@@ -395,4 +396,5 @@ The following standard targets are defined in the makefile:
   with debug printfs and the clang address sanitizer enabled.
 - `install`; installs all distribution files in their corresponding locations.
 - `install-shared`; same as `install` but also installs the shared library.
+- `macos`; same as `all` but creates a Universal Binary (X64 + ARM64).
 - `test`; runs the unit test program, building it as needed.

Makefile

@@ -1,224 +0,0 @@
-#
-# Makefile for PDFio.
-#
-# Copyright © 2021-2023 by Michael R Sweet.
-#
-# Licensed under Apache License v2.0.  See the file "LICENSE" for more
-# information.
-#
-
-# POSIX makefile
-.POSIX:
-
-# Build silently
-.SILENT:
-
-# Variables
-AR		=	ar
-ARFLAGS		=	cr
-CC		=	cc
-CFLAGS		=
-CODESIGN_IDENTITY =	Developer ID
-COMMONFLAGS	=	-Os -g
-#COMMONFLAGS	=	-O0 -g -fsanitize=address
-CPPFLAGS	=	'-DPDFIO_VERSION="$(VERSION)"'
-DESTDIR		=	$(DSTROOT)
-DSO		=	cc
-DSOFLAGS	=
-DSONAME		=
-LDFLAGS		=
-LIBS		=	-lm -lz
-RANLIB		=	ranlib
-VERSION		=	1.1.0
-prefix		=	/usr/local
-
-
-# Base rules
-.SUFFIXES:	.c .h .o
-.c.o:
-	echo Compiling $<...
-	$(CC) $(CFLAGS) $(CPPFLAGS) $(COMMONFLAGS) -c $<
-
-
-# Files
-PUBHEADERS	=	\
-			pdfio.h \
-			pdfio-content.h
-PUBOBJS		=	\
-			pdfio-aes.o \
-			pdfio-array.o \
-			pdfio-common.o \
-			pdfio-content.o \
-			pdfio-crypto.o \
-			pdfio-dict.o \
-			pdfio-file.o \
-			pdfio-md5.o \
-			pdfio-object.o \
-			pdfio-page.o \
-			pdfio-rc4.o \
-			pdfio-sha256.o \
-			pdfio-stream.o \
-			pdfio-string.o \
-			pdfio-token.o \
-			pdfio-value.o
-LIBOBJS		=	\
-			$(PUBOBJS) \
-			ttf.o
-OBJS		=	\
-			$(LIBOBJS) \
-			pdfiototext.o \
-			testpdfio.o
-TARGETS		=	\
-			$(DSONAME) \
-			libpdfio.a \
-			pdfiototext \
-			testpdfio
-
-
-# Make everything
-all:		$(TARGETS)
-
-all-shared:
-	if test `uname` = Darwin; then \
-		$(MAKE) DSONAME="libpdfio.1.dylib" -$(MAKEFLAGS) all; \
-	else \
-		$(MAKE) COMMONFLAGS="-g -Os -fPIC" DSONAME="libpdfio.so.1" -$(MAKEFLAGS) all; \
-	fi
-
-debug:
-	$(MAKE) -$(MAKEFLAGS) COMMONFLAGS="-g -fsanitize=address -DDEBUG=1" clean all
-
-macos:
-	$(MAKE) -$(MAKEFLAGS) COMMONFLAGS="-Os -mmacosx-version-min=10.14 -arch x86_64 -arch arm64" clean all
-
-
-# Clean everything
-clean:
-	rm -f $(TARGETS) $(OBJS)
-
-
-# Install everything
-install:	$(TARGETS)
-	echo Installing header files to $(DESTDIR)$(prefix)/include...
-	-mkdir -p $(DESTDIR)$(prefix)/include
-	cp $(PUBHEADERS) $(DESTDIR)$(prefix)/include
-	echo Installing library files to $(DESTDIR)$(prefix)/lib...
-	-mkdir -p $(DESTDIR)$(prefix)/lib
-	cp libpdfio.a $(DESTDIR)$(prefix)/lib
-	$(RANLIB) $(DESTDIR)$(prefix)/lib/libpdfio.a
-	if test "x$(DSONAME)" = xlibpdfio.so.1; then \
-		cp $(DSONAME) $(DESTDIR)$(prefix)/lib; \
-		ln -sf libpdfio.so.1 $(DESTDIR)$(prefix)/lib/libpdfio.so; \
-	elif test "x$(DSONAME)" = xlibpdfio.1.dylib; then \
-		cp $(DSONAME) $(DESTDIR)$(prefix)/lib; \
-		codesign -s "$(CODESIGN_IDENTITY)" -o runtime --timestamp $(DESTDIR)$(prefix)/lib/libpdfio.1.dylib; \
-		ln -sf libpdfio.1.dylib $(DESTDIR)$(prefix)/lib/libpdfio.dylib; \
-	fi
-	echo Installing pkg-config files to $(DESTDIR)$(prefix)/lib/pkgconfig...
-	-mkdir -p $(DESTDIR)$(prefix)/lib/pkgconfig
-	echo 'prefix="$(prefix)"' >$(DESTDIR)$(prefix)/lib/pkgconfig/pdfio.pc
-	echo 'Version: $(VERSION)' >>$(DESTDIR)$(prefix)/lib/pkgconfig/pdfio.pc
-	cat pdfio.pc.in >>$(DESTDIR)$(prefix)/lib/pkgconfig/pdfio.pc
-	echo Installing documentation to $(DESTDIR)$(prefix)/share/doc/pdfio...
-	-mkdir -p $(DESTDIR)$(prefix)/share/doc/pdfio
-	cp doc/pdfio.html doc/pdfio-512.png LICENSE NOTICE $(DESTDIR)$(prefix)/share/doc/pdfio
-	echo Installing man page to $(DESTDIR)$(prefix)/share/man/man3...
-	-mkdir -p $(DESTDIR)$(prefix)/share/man/man3
-	cp doc/pdfio.3 $(DESTDIR)$(prefix)/share/man/man3
-
-install-shared:
-	if test `uname` = Darwin; then \
-		$(MAKE) DSONAME="libpdfio.1.dylib" -$(MAKEFLAGS) install; \
-	else \
-		$(MAKE) DSONAME="libpdfio.so.1" -$(MAKEFLAGS) install; \
-	fi
-
-
-# Test everything
-test:	testpdfio
-	./testpdfio
-
-valgrind:	testpdfio
-	valgrind --leak-check=full ./testpdfio
-
-
-# pdfio library
-libpdfio.a:		$(LIBOBJS)
-	echo Archiving $@...
-	$(AR) $(ARFLAGS) $@ $(LIBOBJS)
-	$(RANLIB) $@
-
-libpdfio.so.1:		$(LIBOBJS)
-	echo Linking $@...
-	$(CC) $(DSOFLAGS) $(COMMONFLAGS) -shared -o $@ -Wl,-soname,$@ $(LIBOBJS) $(LIBS)
-
-libpdfio.1.dylib:	$(LIBOBJS)
-	echo Linking $@...
-	$(CC) $(DSOFLAGS) $(COMMONFLAGS) -dynamiclib -o $@ -install_name $(prefix)/lib/$@ -current_version $(VERSION) -compatibility_version 1.0 $(LIBOBJS) $(LIBS)
-
-
-# pdfio1.def (Windows DLL exports file...)
-#
-# I'd love to use __declspec(dllexport) but MS puts it before the function
-# declaration instead of after like everyone else, and it breaks Codedoc and
-# other tools I rely on...
-pdfio1.def: $(LIBOBJS) Makefile
-	echo Generating $@...
-	echo "LIBRARY pdfio1" >$@
-	echo "VERSION 1.0" >>$@
-	echo "EXPORTS" >>$@
-	nm $(LIBOBJS) 2>/dev/null | grep "T _" | awk '{print $$3}' | \
-		grep -v '^_ttf' | sed -e '1,$$s/^_//' | sort >>$@
-
-
-# pdfio text extraction (demo, doesn't handle a lot of things yet)
-pdfiototext:		pdfiototext.o libpdfio.a
-	echo Linking $@...
-	$(CC) $(LDFLAGS) $(COMMONFLAGS) -o $@ pdfiototext.o libpdfio.a $(LIBS)
-
-
-# pdfio test program
-testpdfio:		testpdfio.o libpdfio.a
-	echo Linking $@...
-	$(CC) $(LDFLAGS) $(COMMONFLAGS) -o $@ testpdfio.o libpdfio.a $(LIBS)
-
-
-# Dependencies
-$(OBJS):		pdfio.h pdfio-private.h Makefile
-pdfio-content.o:	pdfio-content.h ttf.h
-ttf.o:			ttf.h
-
-# Make documentation using Codedoc <https://www.msweet.org/codedoc>
-DOCFLAGS	=	\
-			--author "Michael R Sweet" \
-			--copyright "Copyright (c) 2021-2022 by Michael R Sweet" \
-			--docversion $(VERSION)
-
-.PHONY: doc
-doc:
-	echo Generating documentation...
-	codedoc $(DOCFLAGS) --title "PDFio Programming Manual v$(VERSION)" $(PUBHEADERS) $(PUBOBJS:.o=.c) --body doc/pdfio.md --coverimage doc/pdfio-512.png pdfio.xml >doc/pdfio.html
-	codedoc $(DOCFLAGS) --title "PDFio Programming Manual v$(VERSION)" --body doc/pdfio.md --coverimage doc/pdfio-epub.png pdfio.xml --epub doc/pdfio.epub
-	codedoc $(DOCFLAGS) --title "pdf read/write library" --man pdfio --section 3 --body doc/pdfio.md pdfio.xml >doc/pdfio.3
-	rm -f pdfio.xml
-
-
-# Fuzz-test the library <>
-.PHONY: afl
-afl:
-	$(MAKE) -$(MAKEFLAGS) CC="afl-clang-fast" COMMONFLAGS="-g" clean all
-	test afl-output || rm -rf afl-output
-	afl-fuzz -x afl-pdf.dict -i afl-input -o afl-output -V 600 -e pdf -t 5000 ./testpdfio @@
-
-
-# Analyze code with the Clang static analyzer <https://clang-analyzer.llvm.org>
-clang:
-	clang $(CPPFLAGS) --analyze $(OBJS:.o=.c) 2>clang.log
-	rm -rf $(OBJS:.o=.plist)
-	test -s clang.log && (echo "$(GHA_ERROR)Clang detected issues."; echo ""; cat clang.log; exit 1) || exit 0
-
-
-# Analyze code using Cppcheck <http://cppcheck.sourceforge.net>
-cppcheck:
-	cppcheck $(CPPFLAGS) --template=gcc --addon=cert.py --suppressions-list=.cppcheck $(OBJS:.o=.c) 2>cppcheck.log
-	test -s cppcheck.log && (echo "$(GHA_ERROR)Cppcheck detected issues."; echo ""; cat cppcheck.log; exit 1) || exit 0

Makefile.in

@@ -0,0 +1,259 @@
+#
+# Makefile for PDFio.
+#
+# Copyright © 2021-2023 by Michael R Sweet.
+#
+# Licensed under Apache License v2.0.  See the file "LICENSE" for more
+# information.
+#
+
+# POSIX makefile
+.POSIX:
+
+
+# Build silently
+.SILENT:
+
+
+# Version number...
+PDFIO_VERSION		=	@PDFIO_VERSION@
+PDFIO_VERSION_MAJOR	=	@PDFIO_VERSION_MAJOR@
+PDFIO_VERSION_MINOR	=	@PDFIO_VERSION_MINOR@
+
+
+# Programs and options...
+AR		=	@AR@
+ARFLAGS		=	@ARFLAGS@
+CC		=	@CC@
+CFLAGS		=	@CFLAGS@ $(CPPFLAGS) $(OPTIM) $(WARNINGS)
+CODE_SIGN	=	@CODE_SIGN@
+CODESIGN_IDENTITY =	-
+CPPFLAGS	=	@CPPFLAGS@
+CSFLAGS		=	-s "$(CODESIGN_IDENTITY)" @CSFLAGS@ --timestamp
+DSOFLAGS	=	@DSOFLAGS@ $(CFLAGS)
+INSTALL		=	@INSTALL@
+LDFLAGS		=	@LDFLAGS@ $(OPTIM)
+LIBS		=	@LIBS@ -lm
+LN		=	@LN@
+OPTIM		=	@OPTIM@
+RANLIB		=	@RANLIB@
+RM		=	@RM@ -f
+RMDIR		=	@RMDIR@
+SHELL		=	/bin/sh
+WARNINGS	=	@WARNINGS@
+
+
+# Targets
+LIBPDFIO	=	@LIBPDFIO@
+LIBPDFIO_STATIC	=	@LIBPDFIO_STATIC@
+
+
+# Directories...
+bindir		=	@bindir@
+datadir		=	@datadir@
+datarootdir	=	@datarootdir@
+exec_prefix	=	@exec_prefix@
+includedir	=	@includedir@
+infodir		=	@infodir@
+libdir		=	@libdir@
+libexecdir	=	@libexecdir@
+localstatedir	=	@localstatedir@
+mandir		=	@mandir@
+oldincludedir	=	@oldincludedir@
+prefix		=	@prefix@
+sbindir		=	@sbindir@
+sharedstatedir	=	@sharedstatedir@
+srcdir		=	@srcdir@
+sysconfdir	=	@sysconfdir@
+top_srcdir	=	@top_srcdir@
+
+BUILDROOT	=	$(DSTROOT)$(RPM_BUILD_ROOT)$(DESTDIR)
+
+
+# Build commands...
+.SUFFIXES:	.c .h .o
+.c.o:
+	echo Compiling $<...
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+
+# Files
+PUBHEADERS	=	\
+			pdfio.h \
+			pdfio-content.h
+PUBOBJS		=	\
+			pdfio-aes.o \
+			pdfio-array.o \
+			pdfio-common.o \
+			pdfio-content.o \
+			pdfio-crypto.o \
+			pdfio-dict.o \
+			pdfio-file.o \
+			pdfio-md5.o \
+			pdfio-object.o \
+			pdfio-page.o \
+			pdfio-rc4.o \
+			pdfio-sha256.o \
+			pdfio-stream.o \
+			pdfio-string.o \
+			pdfio-token.o \
+			pdfio-value.o
+LIBOBJS		=	\
+			$(PUBOBJS) \
+			ttf.o
+OBJS		=	\
+			$(LIBOBJS) \
+			pdfiototext.o \
+			testpdfio.o \
+			testttf.o
+TARGETS		=	\
+			$(LIBPDFIO) \
+			$(LIBPDFIO_STATIC) \
+			pdfiototext \
+			testpdfio \
+			testttf
+
+
+# Make everything
+all:		$(TARGETS)
+
+
+# Clean everything
+clean:
+	rm -f $(TARGETS) $(OBJS)
+
+
+# Install everything
+install:	$(TARGETS)
+	echo Installing header files to $(BUILDROOT)$(includedir)...
+	$(INSTALL) -d -m 755 $(BUILDROOT)$(includedir)
+	for file in $(PUBHEADERS); do \
+		$(INSTALL) -c -m 644 $$file $(BUILDROOT)$(includedir); \
+	done
+	echo Installing library files to $(BUILDROOT)$(libdir)...
+	$(INSTALL) -d -m 755 $(BUILDROOT)$(libdir)
+	if test "x$(LIBPDFIO_STATIC)" != x; then \
+		$(INSTALL) -c -m 644 $(LIBPDFIO_STATIC) $(BUILDROOT)$(libdir); \
+		$(RANLIB) $(BUILDROOT)$(libdir)/$(LIBPDFIO_STATIC); \
+	fi
+	if test "x$(LIBPDFIO)" = xlibpdfio.so.1; then \
+		$(INSTALL) -c -m 755 libpdfio.so.1 $(BUILDROOT)$(libdir); \
+		ln -sf libpdfio.so.1 $(BUILDROOT)$(libdir)/libpdfio.so; \
+	elif test "x$(LIBPDFIO)" = xlibpdfio.1.dylib; then \
+		$(INSTALL) -c -m 755 libpdfio.1.dylib $(BUILDROOT)$(libdir); \
+		codesign -s "$(CODESIGN_IDENTITY)" -o runtime --timestamp $(BUILDROOT)$(libdir)/libpdfio.1.dylib; \
+		ln -sf libpdfio.1.dylib $(BUILDROOT)$(libdir)/libpdfio.dylib; \
+	else \
+		$(INSTALL) -c -m 644 $(LIBPDFIO) $(BUILDROOT)$(libdir); \
+		$(RANLIB) $(BUILDROOT)$(libdir)/$(LIBPDFIO); \
+	fi
+	echo Installing pkg-config files to $(BUILDROOT)$(libdir)/pkgconfig...
+	$(INSTALL) -d -m 755 $(BUILDROOT)$(libdir)/pkgconfig
+	$(INSTALL) -c -m 644 pdfio.pc $(BUILDROOT)$(libdir)/pkgconfig
+	echo Installing documentation to $(BUILDROOT)$(datadir)/doc/pdfio...
+	$(INSTALL) -d -m 755 $(BUILDROOT)$(datadir)/doc/pdfio
+	for file in doc/pdfio.html doc/pdfio-512.png LICENSE NOTICE; do \
+		$(INSTALL) -c -m 644  $$file $(BUILDROOT)$(datadir)/doc/pdfio; \
+	done
+	echo Installing man page to $(BUILDROOT)$(mandir)/man3...
+	$(INSTALL) -d -m 755 $(BUILDROOT)$(mandir)/man3
+	$(INSTALL) -c -m 644 doc/pdfio.3 $(BUILDROOT)$(mandir)/man3
+
+
+# Test everything
+test:	testpdfio testttf
+	./testttf 2>test.log
+	./testpdfio 2>test.log
+
+valgrind:	testpdfio
+	valgrind --leak-check=full ./testpdfio
+
+
+# pdfio library
+libpdfio.a:		$(LIBOBJS)
+	echo Archiving $@...
+	$(AR) $(ARFLAGS) $@ $(LIBOBJS)
+	$(RANLIB) $@
+
+libpdfio.so.1:		$(LIBOBJS)
+	echo Linking $@...
+	$(CC) $(DSOFLAGS) -shared -o $@ -Wl,-soname,$@ $(LIBOBJS) $(LIBS)
+
+libpdfio.1.dylib:	$(LIBOBJS)
+	echo Linking $@...
+	$(CC) $(DSOFLAGS) -dynamiclib -o $@ -install_name $(libdir)/$@ -current_version $(PDFIO_VERSION_MAJOR).$(PDFIO_VERSION_MINOR) -compatibility_version 1.0 $(LIBOBJS) $(LIBS)
+
+
+# pdfio1.def (Windows DLL exports file...)
+#
+# I'd love to use __declspec(dllexport) but MS puts it before the function
+# declaration instead of after like everyone else, and it breaks Codedoc and
+# other tools I rely on...
+pdfio1.def: $(LIBOBJS) Makefile
+	echo Generating $@...
+	echo "LIBRARY pdfio1" >$@
+	echo "VERSION $(PDFIO_VERSION_MAJOR).$(PDFIO_VERSION_MINOR)" >>$@
+	echo "EXPORTS" >>$@
+	nm $(LIBOBJS) 2>/dev/null | grep "T _" | awk '{print $$3}' | \
+		grep -v '^_ttf' | sed -e '1,$$s/^_//' | sort >>$@
+
+
+# pdfio text extraction (demo, doesn't handle a lot of things yet)
+pdfiototext:		pdfiototext.o libpdfio.a
+	echo Linking $@...
+	$(CC) $(LDFLAGS) -o $@ pdfiototext.o libpdfio.a $(LIBS)
+
+
+# pdfio test program
+testpdfio:		testpdfio.o libpdfio.a
+	echo Linking $@...
+	$(CC) $(LDFLAGS) -o $@ testpdfio.o libpdfio.a $(LIBS)
+
+
+# TTF test program
+testttf:	ttf.o testttf.o
+	echo Linking $@...
+	$(CC) $(LDFLAGS) -o testttf ttf.o testttf.o $(LIBS)
+
+
+# Dependencies
+$(OBJS):		pdfio.h pdfio-private.h Makefile
+pdfio-content.o:	pdfio-content.h ttf.h
+testttf.o:		ttf.h
+ttf.o:			ttf.h
+
+
+# Make documentation using Codedoc <https://www.msweet.org/codedoc>
+DOCFLAGS	=	\
+			--author "Michael R Sweet" \
+			--copyright "Copyright (c) 2021-2023 by Michael R Sweet" \
+			--docversion $(PDFIO_VERSION)
+
+.PHONY: doc
+doc:
+	echo Generating documentation...
+	codedoc $(DOCFLAGS) --title "PDFio Programming Manual v$(PDFIO_VERSION)" $(PUBHEADERS) $(PUBOBJS:.o=.c) --body doc/pdfio.md --coverimage doc/pdfio-512.png pdfio.xml >doc/pdfio.html
+	codedoc $(DOCFLAGS) --title "PDFio Programming Manual v$(PDFIO_VERSION)" --body doc/pdfio.md --coverimage doc/pdfio-epub.png pdfio.xml --epub doc/pdfio.epub
+	codedoc $(DOCFLAGS) --title "pdf read/write library" --man pdfio --section 3 --body doc/pdfio.md pdfio.xml >doc/pdfio.3
+	rm -f pdfio.xml
+
+
+# Fuzz-test the library <https://lcamtuf.coredump.cx/afl/>
+.PHONY: afl
+afl:
+	$(MAKE) -$(MAKEFLAGS) CC="afl-clang-fast" COMMONFLAGS="-g" clean all
+	test afl-output || rm -rf afl-output
+	afl-fuzz -x afl-pdf.dict -i afl-input -o afl-output -V 600 -e pdf -t 5000 ./testpdfio @@
+
+
+# Analyze code with the Clang static analyzer <https://clang-analyzer.llvm.org>
+clang:
+	clang $(CPPFLAGS) --analyze $(OBJS:.o=.c) 2>clang.log
+	rm -rf $(OBJS:.o=.plist)
+	test -s clang.log && (echo "$(GHA_ERROR)Clang detected issues."; echo ""; cat clang.log; exit 1) || exit 0
+
+
+# Analyze code using Cppcheck <http://cppcheck.sourceforge.net>
+cppcheck:
+	cppcheck $(CPPFLAGS) --template=gcc --addon=cert.py --suppressions-list=.cppcheck $(OBJS:.o=.c) 2>cppcheck.log
+	test -s cppcheck.log && (echo "$(GHA_ERROR)Cppcheck detected issues."; echo ""; cat cppcheck.log; exit 1) || exit 0

README.md

@@ -5,8 +5,6 @@ pdfio - PDF Read/Write Library
 ![Apache 2.0](https://img.shields.io/github/license/michaelrsweet/pdfio)
 [![Build Status](https://img.shields.io/github/workflow/status/michaelrsweet/pdfio/Build)](https://github.com/michaelrsweet/pdfio/actions/workflows/build.yml)
 [![Coverity Scan Status](https://img.shields.io/coverity/scan/22385.svg)](https://scan.coverity.com/projects/michaelrsweet-pdfio)
-[![LGTM Grade](https://img.shields.io/lgtm/grade/cpp/github/michaelrsweet/pdfio)](https://lgtm.com/projects/g/michaelrsweet/pdfio/context:cpp)
-[![LGTM Alerts](https://img.shields.io/lgtm/alerts/github/michaelrsweet/pdfio)](https://lgtm.com/projects/g/michaelrsweet/pdfio/)
 
 PDFio is a simple C library for reading and writing PDF files.  The primary
 goals of PDFio are:
@@ -30,7 +28,7 @@ PDFio requires the following to build the software:
 
 - A C99 compiler such as Clang, GCC, or MS Visual C
 - A POSIX-compliant `make` program
-- ZLIB (<https://www.zlib.net>) 1.0 or higher
+- ZLIB (<https://www.zlib.net>) 1.1 or higher
 
 IDE files for Xcode (macOS/iOS) and Visual Studio (Windows) are also provided.
 
@@ -38,15 +36,27 @@ IDE files for Xcode (macOS/iOS) and Visual Studio (Windows) are also provided.
 Documentation
 -------------
 
-See the man page (`pdfio.3`), frequently ask questions (`FAQ.md`), and full HTML
-documentation (`pdfio.html`) for information on using PDFio.
+See the man page (`pdfio.3`) and full HTML documentation (`pdfio.html`) for
+information on using PDFio.
 
 
-Installing pdfio
+Installing PDFio
 ----------------
 
-PDFio comes with a portable makefile that will work on any POSIX-compliant
-system with ZLIB installed.  To make it, run:
+PDFio uses a configure script on Unix systems to generate a makefile:
+
+    ./configure
+
+If you want a shared library, run:
+
+    ./configure --enable-shared
+
+The default installation location is "/usr/local".  Pass the `--prefix` option
+to make to install it to another location:
+
+    ./configure --prefix=/some/other/directory
+
+Once configured, run the following to make the library:
 
     make all
 
@@ -56,45 +66,7 @@ To test it, run:
 
 To install it, run:
 
-    make install
-
-If you want a shared library, run:
-
-    make all-shared
-    make install-shared
-
-The default installation location is "/usr/local".  Pass the `prefix` variable
-to make to install it to another location:
-
-    make install prefix=/some/other/directory
-
-The makefile installs the pdfio header to "${prefix}/include", the library to
-"${prefix}/lib", the `pkg-config` file to "${prefix}/lib/pkgconfig", the man
-page to "${prefix}/share/man/man3", and the documentation to
-"${prefix}/share/doc/pdfio".
-
-The makefile supports the following variables that can be specified in the make
-command or as environment variables:
-
-- `AR`: the library archiver (default "ar")
-- `ARFLAGS`: options for the library archiver (default "cr")
-- `CC`: the C compiler (default "cc")
-- `CFLAGS`: options for the C compiler (default "")
-- `CODESIGN_IDENTITY`: the identity to use when code signing the shared library
-  on macOS (default "Developer ID")
-- `COMMONFLAGS`: options for the C compiler and linker (typically architecture
-  and optimization options, default is "-Os -g")
-- `CPPFLAGS`: options for the C preprocessor (default "")
-- `DESTDIR` and `DSTROOT`: specifies a root directory when installing
-  (default is "", specify only one)
-- `DSOFLAGS`: options for the C compiler when linking the shared library
-  (default "")
-- `LDFLAGS`: options for the C compiler when linking the test programs
-  (default "")
-- `LIBS`: library options when linking the test programs (default "-lz")
-- `RANLIB`: program that generates a table-of-contents in a library
-  (default "ranlib")
-- `prefix`: specifies the installation directory (default "/usr/local")
+    sudo make install
 
 
 Visual Studio Project
@@ -113,15 +85,11 @@ generates a static library that will be installed under "/usr/local" with:
 
     sudo xcodebuild install
 
-You can reproduce this with the makefile using:
-
-    sudo make macos install
-
 
 Legal Stuff
 -----------
 
-PDFio is Copyright © 2021-2022 by Michael R Sweet.
+PDFio is Copyright © 2021-2023 by Michael R Sweet.
 
 This software is licensed under the Apache License Version 2.0 with an
 (optional) exception to allow linking against GPL2/LGPL2 software.  See the

SECURITY.md

@@ -5,6 +5,25 @@ This file describes how security issues are reported and handled, and what the
 expectations are for security issues reported to this project.
 
 
+Reporting a Security Bug
+------------------------
+
+For the purposes of this project, a security bug is a software defect that
+allows a *local or remote user* to gain unauthorized access or privileges on the
+host computer or to cause the software to crash.  Such defects should be
+reported to the project security advisory page at
+<https://github.com/michaelrsweet/pdfio/security/advisories>.
+
+Alternately, security bugs can be reported to "security AT msweet.org" using the
+PGP public key below.  Expect a response within 5 business days.  Any proposed
+embargo date should be at least 30 days and no more than 90 days in the future.
+
+> *Note:* If you've found a software defect that allows a *program* to gain
+> unauthorized access or privileges on the host computer or causes the program
+> to crash, that defect should be reported as an ordinary project issue at
+> <https://github.com/michaelrsweet/pdfio/issues>.
+
+
 Responsible Disclosure
 ----------------------
 
@@ -50,14 +69,6 @@ example:
     1.0rc1
 
 
-Reporting a Vulnerability
--------------------------
-
-Report all security issues to "security AT msweet.org".  Expect a response
-within 5 business days.  Any proposed embargo date should be at least 30 days
-and no more than 90 days in the future.
-
-
 PGP Public Key
 --------------
 

configure.ac

@@ -0,0 +1,272 @@
+dnl
+dnl Configuration script for PDFio
+dnl
+dnl Copyright © 2023 by Michael R Sweet
+dnl
+dnl Licensed under Apache License v2.0.  See the file "LICENSE" for more
+dnl information.
+dnl
+
+dnl ***********************************************************************
+dnl
+dnl Note: Using autoheader or automake on this project will break the PDFio
+dnl build system.  Use "autoconf -f" to regenerate the configure script if
+dnl you make changes to this file.
+dnl
+dnl ***********************************************************************
+
+
+dnl We need at least autoconf 2.70 for --runstatedir...
+AC_PREREQ([2.70])
+
+
+dnl Package name and version...
+AC_INIT([pdfio], [1.2.0], [https://github.com/michaelrsweet/pdfio/issues], [pdfio], [https://www.msweet.org/pdfio])
+
+PDFIO_VERSION="AC_PACKAGE_VERSION"
+PDFIO_VERSION_MAJOR="`echo AC_PACKAGE_VERSION | awk -F. '{print $1}'`"
+PDFIO_VERSION_MINOR="`echo AC_PACKAGE_VERSION | awk -F. '{printf("%d\n",$2);}'`"
+AC_SUBST([PDFIO_VERSION])
+AC_SUBST([PDFIO_VERSION_MAJOR])
+AC_SUBST([PDFIO_VERSION_MINOR])
+
+
+dnl This line is provided to ensure that you don't run the autoheader program
+dnl against this project.  Doing so is completely unsupported and WILL cause
+dnl problems!
+AH_TOP([#error "Somebody ran autoheader on this project which is unsupported and WILL cause problems."])
+
+
+dnl Get the build and host platforms and split the host_os value
+AC_CANONICAL_BUILD
+AC_CANONICAL_HOST
+
+[host_os_name="$(echo $host_os | sed -e '1,$s/[0-9.]*$//g')"]
+[host_os_version="$(echo $host_os | sed -e '1,$s/^[^0-9.]*//g' | awk -F. '{print $1 $2}')"]
+# Linux often does not yield an OS version we can use...
+AS_IF([test "x$host_os_version" = x], [
+    host_os_version="0"
+])
+
+
+dnl Compiler options...
+CFLAGS="${CFLAGS:=}"
+CPPFLAGS="${CPPFLAGS:=}"
+DSOFLAGS="${DSOFLAGS:=}"
+LDFLAGS="${LDFLAGS:=}"
+LIBS="${LIBS:=}"
+OPTIM="${OPTIM:=}"
+
+AC_SUBST([DSOFLAGS])
+AC_SUBST([OPTIM])
+
+
+dnl Standard programs...
+AC_PROG_CC
+AC_PROG_RANLIB
+AC_PATH_PROG([AR], [ar])
+AC_PATH_PROGS([CODE_SIGN], [codesign true])
+AC_PATH_PROG([MKDIR], [mkdir])
+AC_PATH_PROG([RM], [rm])
+AC_PATH_PROG([RMDIR], [rmdir])
+AC_PATH_PROG([LN], [ln])
+
+
+dnl Figure out the correct "ar" command flags...
+AS_IF([test "$ac_cv_prog_ranlib" = ":"], [
+    ARFLAGS="crs"
+], [
+    ARFLAGS="cr"
+])
+AC_SUBST([ARFLAGS])
+
+
+dnl install-sh
+AC_MSG_CHECKING([for install-sh script])
+INSTALL="$(pwd)/install-sh"
+AC_SUBST([INSTALL])
+AC_MSG_RESULT([using $INSTALL])
+
+
+dnl Check for pkg-config, which is used for some other tests later on...
+AC_PATH_TOOL([PKGCONFIG], [pkg-config])
+
+PKGCONFIG_CFLAGS="-I\${includedir}"
+PKGCONFIG_LIBS="-L\${libdir} -lpdfio"
+PKGCONFIG_LIBS_PRIVATE="-lm"
+PKGCONFIG_REQUIRES="zlib"
+AC_SUBST([PKGCONFIG_CFLAGS])
+AC_SUBST([PKGCONFIG_LIBS])
+AC_SUBST([PKGCONFIG_LIBS_PRIVATE])
+AC_SUBST([PKGCONFIG_REQUIRES])
+
+
+dnl ZLIB
+AC_MSG_CHECKING([for zlib via pkg-config])
+AS_IF([$PKCONFIG --exists zlib], [
+    AC_MSG_RESULT([yes])
+    LIBS="$($PKGCONFIG --libs zlib) $LIBS"
+    CPPFLAGS="$($PKGCONFIG --cflags zlib) $CPPFLAGS"
+],[
+    AC_MSG_RESULT([no])
+    AC_CHECK_HEADER([zlib.h])
+    AC_CHECK_LIB([z], [inflateCopy])
+
+    AS_IF([test x$ac_cv_header_zlib_h != xyes -o x$ac_cv_lib_z_inflateCopy != xyes], [
+	AC_MSG_ERROR([Sorry, this software requires zlib 1.1 or higher.])
+    ])
+
+    PKGCONFIG_LIBS_PRIVATE="-lz $PKGCONFIG_LIBS_PRIVATE"
+])
+
+
+dnl Library target...
+AC_ARG_ENABLE([static], AS_HELP_STRING([--disable-static], [do not install static library]))
+AC_ARG_ENABLE([shared], AS_HELP_STRING([--enable-shared], [install shared library]))
+
+AS_IF([test x$enable_shared = xyes], [
+    AS_IF([test "$host_os_name" = darwin], [
+	LIBPDFIO="libpdfio.1.dylib"
+    ], [
+	LIBPDFIO="libpdfio.so.1"
+    ])
+
+    AS_IF([test x$enable_static != xno], [
+        LIBPDFIO_STATIC="libpdfio.a"
+    ], [
+	LIBPDFIO_STATIC=""
+    ])
+], [
+    LIBPDFIO="libpdfio.a"
+    LIBPDFIO_STATIC=""
+    PKGCONFIG_LIBS="$PKGCONFIG_LIBS $PKGCONFIG_LIBS_PRIVATE"
+    PKGCONFIG_LIBS_PRIVATE=""
+])
+
+AC_SUBST([LIBPDFIO])
+AC_SUBST([LIBPDFIO_STATIC])
+
+
+dnl Extra compiler options...
+AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [turn on debugging, default=no]))
+AC_ARG_ENABLE([maintainer], AS_HELP_STRING([--enable-maintainer], [turn on maintainer mode, default=no]))
+AC_ARG_ENABLE([sanitizer], AS_HELP_STRING([--enable-sanitizer], [build with AddressSanitizer, default=no]))
+
+AS_IF([test x$enable_debug = xyes], [
+    OPTIM="$OPTIM -g"
+    CSFLAGS=""
+], [
+    OPTIM="$OPTIM -g -Os"
+    CSFLAGS="-o runtime"
+])
+
+AC_SUBST([CSFLAGS])
+
+WARNINGS=""
+AC_SUBST([WARNINGS])
+
+AS_IF([test -n "$GCC"], [
+    AS_IF([test x$enable_sanitizer = xyes], [
+	# Use -fsanitize=address with debugging...
+	OPTIM="$OPTIM -fsanitize=address"
+    ], [
+	# Otherwise use the Fortify enhancements to catch any unbounded
+	# string operations...
+	CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
+    ])
+
+    dnl Show all standard warnings + unused variables when compiling...
+    WARNINGS="-Wall -Wunused"
+
+    dnl Drop some not-useful/unreliable warnings...
+    for warning in char-subscripts format-truncation format-y2k switch unused-result; do
+	AC_MSG_CHECKING([whether compiler supports -Wno-$warning])
+
+	OLDCFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -Wno-$warning -Werror"
+
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+	    AC_MSG_RESULT(yes)
+	    WARNINGS="$WARNINGS -Wno-$warning"
+        ], [
+	    AC_MSG_RESULT(no)
+	])
+
+	CFLAGS="$OLDCFLAGS"
+    done
+
+    dnl Maintainer mode enables -Werror...
+    AS_IF([test x$enable_maintainer = xyes], [
+	WARNINGS="$WARNINGS -Werror -Wno-error=deprecated"
+    ])
+
+    dnl See if PIE options are supported...
+    AC_MSG_CHECKING(whether compiler supports -fPIE)
+    OLDCFLAGS="$CFLAGS"
+    AS_CASE(["$host_os_name"],
+    [darwin*], [
+	CFLAGS="$CFLAGS -fPIC -fPIE -Wl,-pie"
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[
+	    OLDCFLAGS="-fPIC $OLDCFLAGS"
+	    LDFLAGS="-fPIE -Wl,-pie $LDFLAGS"
+	    AC_MSG_RESULT(yes)
+	],[
+	    AC_MSG_RESULT(no)
+	])
+    ], [*], [
+	CFLAGS="$CFLAGS -fPIC -fPIE -pie"
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[
+	    OLDCFLAGS="-fPIC $OLDCFLAGS"
+	    LDFLAGS="-fPIE -pie $LDFLAGS"
+	    AC_MSG_RESULT(yes)
+	],[
+	    AC_MSG_RESULT(no)
+	])
+    ])
+    CFLAGS="$OLDCFLAGS"
+
+    dnl OS-specific compiler options...
+    AC_MSG_CHECKING([for OS-specific compiler options])
+    AS_CASE(["$host_os_name"], [linux*], [
+    	# Make sure we get the full set of 64-bit Linux APIs from the headers...
+	CPPFLAGS="$CPPFLAGS -D__USE_MISC -D_GNU_SOURCE -D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64"
+
+	# Mark read-only sections as relocatable to random addresses...
+	LDFLAGS="$LDFLAGS -Wl,-z,relro,-z,now"
+
+        AC_MSG_RESULT([-D__USE_MISC -D_GNU_SOURCE -D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64 -Wl,-z,relro,-z,now])
+    ], [darwin*], [
+        # When not building for debug, target macOS 11 or later, "universal"
+        # binaries when possible...
+        AS_IF([echo "$CPPFLAGS $CFLAGS $LDFLAGS $OPTIM" | grep -q "\\-arch "], [
+            # Don't add architecture/min-version flags if they are already present
+            AC_MSG_RESULT([none])
+        ], [echo "$CPPFLAGS $CFLAGS $LDFLAGS $OPTIM" | grep -q "\\-mmacosx-version-"], [
+            # Don't add architecture/min-version flags if they are already present
+            AC_MSG_RESULT([none])
+        ], [test "$host_os_version" -ge 200 -a x$enable_debug != xyes], [
+	    # macOS 11.0 and higher support the Apple Silicon (arm64) CPUs
+	    OPTIM="$OPTIM -mmacosx-version-min=11.0 -arch x86_64 -arch arm64"
+            AC_MSG_RESULT([-mmacosx-version-min=11.0 -arch x86_64 -arch arm64])
+	], [
+	    # Don't add architecture/min-version flags if debug enabled
+            AC_MSG_RESULT([none])
+	])
+    ], [*], [
+        AC_MSG_RESULT([none])
+    ])
+])
+
+
+dnl Extra linker options...
+AC_ARG_WITH([dsoflags], AS_HELP_STRING([--with-dsoflags=...], [Specify additional DSOFLAGS]), [
+    DSOFLAGS="$withval $DSOFLAGS"
+])
+AC_ARG_WITH([ldflags], AS_HELP_STRING([--with-ldflags=...], [Specify additional LDFLAGS]), [
+    LDFLAGS="$withval $LDFLAGS"
+])
+
+
+dnl Generate the Makefile and pkg-config file...
+AC_CONFIG_FILES([Makefile pdfio.pc])
+AC_OUTPUT

doc/pdfio.3

@@ -1,4 +1,4 @@
-.TH pdfio 3 "pdf read/write library" "2022-07-03" "pdf read/write library"
+.TH pdfio 3 "pdf read/write library" "2023-12-05" "pdf read/write library"
 .SH NAME
 pdfio \- pdf read/write library
 .SH Introduction
@@ -34,7 +34,7 @@ PDFio is
 .I not
  concerned with rendering or viewing a PDF file, although a PDF RIP or viewer could be written using it.
 .PP
-PDFio is Copyright \[co] 2021\-2022 by Michael R Sweet and is licensed under the Apache License Version 2.0 with an (optional) exception to allow linking against GPL2/LGPL2 software. See the files "LICENSE" and "NOTICE" for more information.
+PDFio is Copyright \[co] 2021\-2023 by Michael R Sweet and is licensed under the Apache License Version 2.0 with an (optional) exception to allow linking against GPL2/LGPL2 software. See the files "LICENSE" and "NOTICE" for more information.
 .SS Requirements
 .PP
 PDFio requires the following to build the software:
@@ -1357,7 +1357,7 @@ bool  pdfioContentFillAndStroke (
 .fi
 .SS pdfioContentMatrixConcat
 Concatenate a matrix to the current graphics
-state.
+                               state.
 .PP
 .nf
 bool  pdfioContentMatrixConcat (
@@ -1507,6 +1507,9 @@ bool  pdfioContentSetDashPattern (
     double off
 );
 .fi
+.PP
+This function sets the stroke pattern when drawing lines.  If "on" and "off"
+are 0, a solid line is drawn.
 .SS pdfioContentSetFillColorDeviceCMYK
 Set device CMYK fill color.
 .PP
@@ -1771,6 +1774,20 @@ bool  pdfioContentTextEnd (
     pdfio_stream_t *st
 );
 .fi
+.SS pdfioContentTextMeasure
+Measure a text string and return its width.
+.PP
+.nf
+double  pdfioContentTextMeasure (
+    pdfio_obj_t *font,
+    const char *s,
+    double size
+);
+.fi
+.PP
+This function measures the given text string "s" and returns its width based
+on "size". The text string must always use the UTF-8 (Unicode) encoding but
+any control characters (such as newlines) are ignored.
 .SS pdfioContentTextMoveLine
 Move to the next line and offset.
 .PP
@@ -1791,14 +1808,49 @@ bool  pdfioContentTextMoveTo (
     double ty
 );
 .fi
-.SS pdfioContentTextNextLine
+.SS pdfioContentTextNewLine
 Move to the next line.
 .PP
 .nf
-bool  pdfioContentTextNextLine (
+bool  pdfioContentTextNewLine (
     pdfio_stream_t *st
 );
 .fi
+.SS pdfioContentTextNewLineShow
+Move to the next line and show text.
+.PP
+.nf
+bool  pdfioContentTextNewLineShow (
+    pdfio_stream_t *st,
+    double ws,
+    double cs,
+    bool unicode,
+    const char *s
+);
+.fi
+.PP
+This function moves to the next line and then shows some text with optional
+word and character spacing in a PDF content stream. The "unicode" argument
+specifies that the current font maps to full Unicode.  The "s" argument
+specifies a UTF-8 encoded string.
+.SS pdfioContentTextNewLineShowf
+Show formatted text.
+.PP
+.nf
+bool  pdfioContentTextNewLineShowf (
+    pdfio_stream_t *st,
+    double ws,
+    double cs,
+    bool unicode,
+    const char *format,
+    ...
+);
+.fi
+.PP
+This function moves to the next line and shows some formatted text with
+optional word and character spacing in a PDF content stream. The "unicode"
+argument specifies that the current font maps to full Unicode.  The "format"
+argument specifies a UTF-8 encoded \fBprintf\fR-style format string.
 .SS pdfioContentTextShow
 Show text.
 .PP
@@ -1981,6 +2033,7 @@ function "cb":
     }
 
 .fi
+
 The iteration continues as long as the callback returns \fBtrue\fR or all keys
 have been iterated.
 .SS pdfioDictSetArray
@@ -2272,6 +2325,18 @@ Note: Currently PNG support is limited to grayscale, RGB, or indexed files
 without interlacing or alpha.  Transparency (masking) based on color/index
 .IP 5
 is supported.
+.SS pdfioFileCreateNumberObj
+Create a new object in a PDF file containing a number.
+.PP
+.nf
+pdfio_obj_t * pdfioFileCreateNumberObj (
+    pdfio_file_t *pdf,
+    double number
+);
+.fi
+.PP
+This function creates a new object with a number value in a PDF file.
+You must call \fIpdfioObjClose\fR to write the object to the file.
 .SS pdfioFileCreateObj
 Create a new object in a PDF file.
 .PP
@@ -2305,10 +2370,11 @@ written:
     ssize_t
     output_cb(void *output_ctx, const void *buffer, size_t bytes)
     {
-    // Write buffer to output and return the number of bytes written
+      // Write buffer to output and return the number of bytes written
     }
 
 .fi
+
 The "version" argument specifies the PDF version number for the file or
 \fBNULL\fR for the default ("2.0").
 .PP
@@ -2335,6 +2401,18 @@ pdfio_stream_t * pdfioFileCreatePage (
     pdfio_dict_t *dict
 );
 .fi
+.SS pdfioFileCreateStringObj
+Create a new object in a PDF file containing a string.
+.PP
+.nf
+pdfio_obj_t * pdfioFileCreateStringObj (
+    pdfio_file_t *pdf,
+    const char *string
+);
+.fi
+.PP
+This function creates a new object with a string value in a PDF file.
+You must call \fIpdfioObjClose\fR to write the object to the file.
 .SS pdfioFileCreateTemporary
 
 .PP
@@ -2616,7 +2694,7 @@ double  pdfioImageGetWidth (
 .fi
 .SS pdfioObjClose
 Close an object, writing any data as needed to the PDF
-file.
+                    file.
 .PP
 .nf
 bool  pdfioObjClose (
@@ -2802,6 +2880,13 @@ bool  pdfioStreamGetToken (
     size_t bufsize
 );
 .fi
+.PP
+This function reads a single PDF token from a stream.  Operator tokens,
+boolean values, and numbers are returned as-is in the provided string buffer.
+String values start with the opening parenthesis ('(') but have all escaping
+resolved and the terminating parenthesis removed.  Hexadecimal string values
+start with the opening angle bracket ('<') and have all whitespace and the
+terminating angle bracket removed.
 .SS pdfioStreamPeek
 Peek at data in a stream.
 .PP
@@ -3035,4 +3120,4 @@ typedef uint8_t state_t[4][4];
 Michael R Sweet
 .SH COPYRIGHT
 .PP
-Copyright (c) 2021-2022 by Michael R Sweet
+Copyright (c) 2021-2023 by Michael R Sweet

doc/pdfio.html

@@ -1,13 +1,13 @@
 <!DOCTYPE html>
 <html lang="en-US">
 <head>
-<title>PDFio Programming Manual v1.1</title>
+<title>PDFio Programming Manual v1.2.0</title>
 <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
 <meta name="generator" content="codedoc v3.7">
 <meta name="author" content="Michael R Sweet">
 <meta name="language" content="en-US">
-<meta name="copyright" content="Copyright © 2021-2022 by Michael R Sweet">
-<meta name="version" content="1.1">
+<meta name="copyright" content="Copyright © 2021-2023 by Michael R Sweet">
+<meta name="version" content="1.2.0">
 <style type="text/css"><!--
 body {
   background: white;
@@ -245,9 +245,9 @@ span.string {
 <body>
 <div class="header">
 <p><img class="title" src="pdfio-512.png"></p>
-<h1 class="title">PDFio Programming Manual v1.1</h1>
+<h1 class="title">PDFio Programming Manual v1.2.0</h1>
 <p>Michael R Sweet</p>
-<p>Copyright © 2021-2022 by Michael R Sweet</p>
+<p>Copyright © 2021-2023 by Michael R Sweet</p>
 </div>
 <div class="contents">
 <h2 class="title">Contents</h2>
@@ -342,9 +342,12 @@ span.string {
 <li><a href="#pdfioContentStroke">pdfioContentStroke</a></li>
 <li><a href="#pdfioContentTextBegin">pdfioContentTextBegin</a></li>
 <li><a href="#pdfioContentTextEnd">pdfioContentTextEnd</a></li>
+<li><a href="#pdfioContentTextMeasure">pdfioContentTextMeasure</a></li>
 <li><a href="#pdfioContentTextMoveLine">pdfioContentTextMoveLine</a></li>
 <li><a href="#pdfioContentTextMoveTo">pdfioContentTextMoveTo</a></li>
-<li><a href="#pdfioContentTextNextLine">pdfioContentTextNextLine</a></li>
+<li><a href="#pdfioContentTextNewLine">pdfioContentTextNewLine</a></li>
+<li><a href="#pdfioContentTextNewLineShow">pdfioContentTextNewLineShow</a></li>
+<li><a href="#pdfioContentTextNewLineShowf">pdfioContentTextNewLineShowf</a></li>
 <li><a href="#pdfioContentTextShow">pdfioContentTextShow</a></li>
 <li><a href="#pdfioContentTextShowJustified">pdfioContentTextShowJustified</a></li>
 <li><a href="#pdfioContentTextShowf">pdfioContentTextShowf</a></li>
@@ -382,9 +385,11 @@ span.string {
 <li><a href="#pdfioFileCreateICCObjFromFile">pdfioFileCreateICCObjFromFile</a></li>
 <li><a href="#pdfioFileCreateImageObjFromData">pdfioFileCreateImageObjFromData</a></li>
 <li><a href="#pdfioFileCreateImageObjFromFile">pdfioFileCreateImageObjFromFile</a></li>
+<li><a href="#pdfioFileCreateNumberObj">pdfioFileCreateNumberObj</a></li>
 <li><a href="#pdfioFileCreateObj">pdfioFileCreateObj</a></li>
 <li><a href="#pdfioFileCreateOutput">pdfioFileCreateOutput</a></li>
 <li><a href="#pdfioFileCreatePage">pdfioFileCreatePage</a></li>
+<li><a href="#pdfioFileCreateStringObj">pdfioFileCreateStringObj</a></li>
 <li><a href="#pdfioFileCreateTemporary">pdfioFileCreateTemporary</a></li>
 <li><a href="#pdfioFileFindObj">pdfioFileFindObj</a></li>
 <li><a href="#pdfioFileGetAuthor">pdfioFileGetAuthor</a></li>
@@ -497,7 +502,7 @@ span.string {
 </li>
 </ul>
 <p>PDFio is <em>not</em> concerned with rendering or viewing a PDF file, although a PDF RIP or viewer could be written using it.</p>
-<p>PDFio is Copyright © 2021-2022 by Michael R Sweet and is licensed under the Apache License Version 2.0 with an (optional) exception to allow linking against GPL2/LGPL2 software. See the files &quot;LICENSE&quot; and &quot;NOTICE&quot; for more information.</p>
+<p>PDFio is Copyright © 2021-2023 by Michael R Sweet and is licensed under the Apache License Version 2.0 with an (optional) exception to allow linking against GPL2/LGPL2 software. See the files &quot;LICENSE&quot; and &quot;NOTICE&quot; for more information.</p>
 <h3 class="title" id="requirements">Requirements</h3>
 <p>PDFio requires the following to build the software:</p>
 <ul>
@@ -1388,7 +1393,7 @@ bool pdfioContentFillAndStroke(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st,
 <p class="description"><code>true</code> on success, <code>false</code> on failure</p>
 <h3 class="function"><a id="pdfioContentMatrixConcat">pdfioContentMatrixConcat</a></h3>
 <p class="description">Concatenate a matrix to the current graphics
-state.</p>
+                               state.</p>
 <p class="code">
 bool pdfioContentMatrixConcat(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, pdfio_matrix_t m);</p>
 <h4 class="parameters">Parameters</h4>
@@ -1614,6 +1619,9 @@ bool pdfioContentSetDashPattern(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description"><code>true</code> on success, <code>false</code> on failure</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function sets the stroke pattern when drawing lines.  If &quot;on&quot; and &quot;off&quot;
+are 0, a solid line is drawn.</p>
 <h3 class="function"><a id="pdfioContentSetFillColorDeviceCMYK">pdfioContentSetFillColorDeviceCMYK</a></h3>
 <p class="description">Set device CMYK fill color.</p>
 <p class="code">
@@ -2002,6 +2010,25 @@ bool pdfioContentTextEnd(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st);</p>
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description"><code>true</code> on success, <code>false</code> on failure</p>
+<h3 class="function"><a id="pdfioContentTextMeasure">pdfioContentTextMeasure</a></h3>
+<p class="description">Measure a text string and return its width.</p>
+<p class="code">
+double pdfioContentTextMeasure(<a href="#pdfio_obj_t">pdfio_obj_t</a> *font, const char *s, double size);</p>
+<h4 class="parameters">Parameters</h4>
+<table class="list"><tbody>
+<tr><th>font</th>
+<td class="description">Font object created by <a href="#pdfioFileCreateFontObjFromFile"><code>pdfioFileCreateFontObjFromFile</code></a></td></tr>
+<tr><th>s</th>
+<td class="description">UTF-8 string</td></tr>
+<tr><th>size</th>
+<td class="description">Font size/height</td></tr>
+</tbody></table>
+<h4 class="returnvalue">Return Value</h4>
+<p class="description">Width</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function measures the given text string &quot;s&quot; and returns its width based
+on &quot;size&quot;. The text string must always use the UTF-8 (Unicode) encoding but
+any control characters (such as newlines) are ignored.</p>
 <h3 class="function"><a id="pdfioContentTextMoveLine">pdfioContentTextMoveLine</a></h3>
 <p class="description">Move to the next line and offset.</p>
 <p class="code">
@@ -2032,10 +2059,10 @@ bool pdfioContentTextMoveTo(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, do
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description"><code>true</code> on success, <code>false</code> on failure</p>
-<h3 class="function"><a id="pdfioContentTextNextLine">pdfioContentTextNextLine</a></h3>
+<h3 class="function"><a id="pdfioContentTextNewLine">pdfioContentTextNewLine</a></h3>
 <p class="description">Move to the next line.</p>
 <p class="code">
-bool pdfioContentTextNextLine(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st);</p>
+bool pdfioContentTextNewLine(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st);</p>
 <h4 class="parameters">Parameters</h4>
 <table class="list"><tbody>
 <tr><th>st</th>
@@ -2043,6 +2070,56 @@ bool pdfioContentTextNextLine(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st);
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description"><code>true</code> on success, <code>false</code> on failure</p>
+<h3 class="function"><a id="pdfioContentTextNewLineShow">pdfioContentTextNewLineShow</a></h3>
+<p class="description">Move to the next line and show text.</p>
+<p class="code">
+bool pdfioContentTextNewLineShow(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, double ws, double cs, bool unicode, const char *s);</p>
+<h4 class="parameters">Parameters</h4>
+<table class="list"><tbody>
+<tr><th>st</th>
+<td class="description">Stream</td></tr>
+<tr><th>ws</th>
+<td class="description">Word spacing or <code>0.0</code> for none</td></tr>
+<tr><th>cs</th>
+<td class="description">Character spacing or <code>0.0</code> for none</td></tr>
+<tr><th>unicode</th>
+<td class="description">Unicode text?</td></tr>
+<tr><th>s</th>
+<td class="description">String to show</td></tr>
+</tbody></table>
+<h4 class="returnvalue">Return Value</h4>
+<p class="description"><code>true</code> on success, <code>false</code> on failure</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function moves to the next line and then shows some text with optional
+word and character spacing in a PDF content stream. The &quot;unicode&quot; argument
+specifies that the current font maps to full Unicode.  The &quot;s&quot; argument
+specifies a UTF-8 encoded string.</p>
+<h3 class="function"><a id="pdfioContentTextNewLineShowf">pdfioContentTextNewLineShowf</a></h3>
+<p class="description">Show formatted text.</p>
+<p class="code">
+bool pdfioContentTextNewLineShowf(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, double ws, double cs, bool unicode, const char *format, ...);</p>
+<h4 class="parameters">Parameters</h4>
+<table class="list"><tbody>
+<tr><th>st</th>
+<td class="description">Stream</td></tr>
+<tr><th>ws</th>
+<td class="description">Word spacing or <code>0.0</code> for none</td></tr>
+<tr><th>cs</th>
+<td class="description">Character spacing or <code>0.0</code> for none</td></tr>
+<tr><th>unicode</th>
+<td class="description">Unicode text?</td></tr>
+<tr><th>format</th>
+<td class="description"><code>printf</code>-style format string</td></tr>
+<tr><th>...</th>
+<td class="description">Additional arguments as needed</td></tr>
+</tbody></table>
+<h4 class="returnvalue">Return Value</h4>
+<p class="description"><code>true</code> on success, <code>false</code> on failure</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function moves to the next line and shows some formatted text with
+optional word and character spacing in a PDF content stream. The &quot;unicode&quot;
+argument specifies that the current font maps to full Unicode.  The &quot;format&quot;
+argument specifies a UTF-8 encoded <code>printf</code>-style format string.</p>
 <h3 class="function"><a id="pdfioContentTextShow">pdfioContentTextShow</a></h3>
 <p class="description">Show text.</p>
 <p class="code">
@@ -2102,9 +2179,9 @@ bool pdfioContentTextShowf(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, boo
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description">Show formatted text.</p>
-<p class="discussion">This function shows some text in a PDF content stream. The &quot;unicode&quot; argument
-specifies that the current font maps to full Unicode.  The &quot;format&quot; argument
-specifies a UTF-8 encoded <code>printf</code>-style format string.</p>
+<p class="discussion">This function shows some formatted text in a PDF content stream. The
+&quot;unicode&quot; argument specifies that the current font maps to full Unicode.
+The &quot;format&quot; argument specifies a UTF-8 encoded <code>printf</code>-style format string.</p>
 <h3 class="function"><a id="pdfioDictCopy">pdfioDictCopy</a></h3>
 <p class="description">Copy a dictionary to a PDF file.</p>
 <p class="code">
@@ -2301,6 +2378,7 @@ my_dict_cb(pdfio_dict_t *dict, const char *key, void *cb_data)
 ... return true to continue or false to stop ...
 }
 </pre>
+
 The iteration continues as long as the callback returns <code>true</code> or all keys
 have been iterated.</p>
 <h3 class="function"><a id="pdfioDictSetArray">pdfioDictSetArray</a></h3>
@@ -2695,6 +2773,22 @@ image on the page.<br>
 Note: Currently PNG support is limited to grayscale, RGB, or indexed files
 without interlacing or alpha.  Transparency (masking) based on color/index
 is supported.</blockquote>
+<h3 class="function"><a id="pdfioFileCreateNumberObj">pdfioFileCreateNumberObj</a></h3>
+<p class="description">Create a new object in a PDF file containing a number.</p>
+<p class="code">
+<a href="#pdfio_obj_t">pdfio_obj_t</a> *pdfioFileCreateNumberObj(<a href="#pdfio_file_t">pdfio_file_t</a> *pdf, double number);</p>
+<h4 class="parameters">Parameters</h4>
+<table class="list"><tbody>
+<tr><th>pdf</th>
+<td class="description">PDF file</td></tr>
+<tr><th>number</th>
+<td class="description">Number value</td></tr>
+</tbody></table>
+<h4 class="returnvalue">Return Value</h4>
+<p class="description">New object</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function creates a new object with a number value in a PDF file.
+You must call <a href="#pdfioObjClose"><code>pdfioObjClose</code></a> to write the object to the file.</p>
 <h3 class="function"><a id="pdfioFileCreateObj">pdfioFileCreateObj</a></h3>
 <p class="description">Create a new object in a PDF file.</p>
 <p class="code">
@@ -2741,9 +2835,10 @@ written:
 ssize_t
 output_cb(void *output_ctx, const void *buffer, size_t bytes)
 {
-// Write buffer to output and return the number of bytes written
+  // Write buffer to output and return the number of bytes written
 }
 </pre>
+
 The &quot;version&quot; argument specifies the PDF version number for the file or
 <code>NULL</code> for the default (&quot;2.0&quot;).<br>
 <br>
@@ -2772,6 +2867,22 @@ stored as indirect object references.</blockquote>
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description">Contents stream</p>
+<h3 class="function"><a id="pdfioFileCreateStringObj">pdfioFileCreateStringObj</a></h3>
+<p class="description">Create a new object in a PDF file containing a string.</p>
+<p class="code">
+<a href="#pdfio_obj_t">pdfio_obj_t</a> *pdfioFileCreateStringObj(<a href="#pdfio_file_t">pdfio_file_t</a> *pdf, const char *string);</p>
+<h4 class="parameters">Parameters</h4>
+<table class="list"><tbody>
+<tr><th>pdf</th>
+<td class="description">PDF file</td></tr>
+<tr><th>string</th>
+<td class="description">String</td></tr>
+</tbody></table>
+<h4 class="returnvalue">Return Value</h4>
+<p class="description">New object</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function creates a new object with a string value in a PDF file.
+You must call <a href="#pdfioObjClose"><code>pdfioObjClose</code></a> to write the object to the file.</p>
 <h3 class="function"><a id="pdfioFileCreateTemporary">pdfioFileCreateTemporary</a></h3>
 <p class="description"></p>
 <p class="code">
@@ -3152,7 +3263,7 @@ double pdfioImageGetWidth(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
 <p class="description">Width in columns</p>
 <h3 class="function"><a id="pdfioObjClose">pdfioObjClose</a></h3>
 <p class="description">Close an object, writing any data as needed to the PDF
-file.</p>
+                    file.</p>
 <p class="code">
 bool pdfioObjClose(<a href="#pdfio_obj_t">pdfio_obj_t</a> *obj);</p>
 <h4 class="parameters">Parameters</h4>
@@ -3413,6 +3524,13 @@ bool pdfioStreamGetToken(<a href="#pdfio_stream_t">pdfio_stream_t</a> *st, char
 </tbody></table>
 <h4 class="returnvalue">Return Value</h4>
 <p class="description"><code>true</code> on success, <code>false</code> on EOF</p>
+<h4 class="discussion">Discussion</h4>
+<p class="discussion">This function reads a single PDF token from a stream.  Operator tokens,
+boolean values, and numbers are returned as-is in the provided string buffer.
+String values start with the opening parenthesis ('(') but have all escaping
+resolved and the terminating parenthesis removed.  Hexadecimal string values
+start with the opening angle bracket ('&lt;') and have all whitespace and the
+terminating angle bracket removed.</p>
 <h3 class="function"><a id="pdfioStreamPeek">pdfioStreamPeek</a></h3>
 <p class="description">Peek at data in a stream.</p>
 <p class="code">

doc/pdfio.md

@@ -15,7 +15,7 @@ goals of pdfio are:
 PDFio is *not* concerned with rendering or viewing a PDF file, although a PDF
 RIP or viewer could be written using it.
 
-PDFio is Copyright © 2021-2022 by Michael R Sweet and is licensed under the
+PDFio is Copyright © 2021-2023 by Michael R Sweet and is licensed under the
 Apache License Version 2.0 with an (optional) exception to allow linking against
 GPL2/LGPL2 software.  See the files "LICENSE" and "NOTICE" for more information.
 

install-sh

@@ -0,0 +1,232 @@
+#!/bin/sh
+#
+# Install a program, script, or datafile.
+#
+# Copyright 2008-2012 by Apple Inc.
+#
+# This script is not compatible with BSD (or any other) install program, as it
+# allows owner and group changes to fail with a warning and makes sure that the
+# destination directory permissions are as specified - BSD install and the
+# original X11 install script did not change permissions of existing
+# directories.  It also does not support the transform options since CUPS does
+# not use them...
+#
+# Original script from X11R5 (mit/util/scripts/install.sh)
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission.  M.I.T. makes no representations about the
+# suitability of this software for any purpose.  It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+
+# set DOITPROG to echo to test this script
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+# Force umask to 022...
+umask 022
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+gzipprog="${GZIPPROG-gzip}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+gzipcp() {
+	# gzipcp from to
+	$gzipprog -9 <"$1" >"$2"
+}
+
+while [ x"$1" != x ]; do
+	case $1 in
+		-c)
+		instcmd="$cpprog"
+		shift
+		continue
+		;;
+
+		-d)
+		dir_arg=true
+		shift
+		continue
+		;;
+
+		-m)
+		chmodcmd="$chmodprog $2"
+		shift
+		shift
+		continue
+		;;
+
+		-o)
+		chowncmd="$chownprog $2"
+		shift
+		shift
+		continue
+		;;
+
+		-g)
+		chgrpcmd="$chgrpprog $2"
+		shift
+		shift
+		continue
+		;;
+
+		-s)
+		stripcmd="$stripprog"
+		shift
+		continue
+		;;
+
+		-z)
+		instcmd="gzipcp"
+		shift
+		continue
+		;;
+
+		*)
+		if [ x"$src" = x ]; then
+			src="$1"
+		else
+			dst="$1"
+		fi
+		shift
+		continue
+		;;
+	esac
+done
+
+if [ x"$src" = x ]; then
+	echo "install-sh: No input file specified"
+	exit 1
+fi
+
+if [ x"$dir_arg" != x ]; then
+	dst="$src"
+	src=""
+
+	if [ -d "$dst" ]; then
+		instcmd=:
+	else
+		instcmd=$mkdirprog
+	fi
+else
+	# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+	# might cause directories to be created, which would be especially bad
+	# if $src (and thus $dsttmp) contains '*'.
+	if [ ! -f "$src" -a ! -d "$src" ]; then
+		echo "install: $src does not exist"
+		exit 1
+	fi
+
+	if [ x"$dst" = x ]; then
+		echo "install: No destination specified"
+		exit 1
+	fi
+
+	# If destination is a directory, append the input filename.
+	if [ -d "$dst" ]; then
+		dst="$dst/`basename $src`"
+	fi
+fi
+
+## this sed command emulates the dirname command
+dstdir="`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`"
+
+# Make sure that the destination directory exists.
+# This part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+	defaultIFS='
+	'
+	IFS="${IFS-${defaultIFS}}"
+
+	oIFS="${IFS}"
+	# Some sh's can't handle IFS=/ for some reason.
+	IFS='%'
+	set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+	IFS="${oIFS}"
+
+	pathcomp=''
+
+	while [ $# -ne 0 ] ; do
+		pathcomp="${pathcomp}${1}"
+		shift
+
+		if [ ! -d "${pathcomp}" ]; then $doit $mkdirprog "${pathcomp}"; fi
+
+		pathcomp="${pathcomp}/"
+	done
+fi
+
+if [ x"$dir_arg" != x ]; then
+	# Make a directory...
+	$doit $instcmd $dst || exit 1
+
+	# Allow chown/chgrp to fail, but log a warning
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst || echo "warning: Unable to change owner of $dst!"; fi
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst || echo "warning: Unable to change group of $dst!"; fi
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst || exit 1; fi
+else
+	# Install a file...
+	dstfile="`basename $dst`"
+
+	# Check the destination file - for libraries just use the "-x" option
+	# to strip...
+	case "$dstfile" in
+		*.a | *.dylib | *.sl | *.sl.* | *.so | *.so.*)
+			stripopt="-x"
+			;;
+		*)
+			stripopt=""
+			;;
+	esac
+
+	# Make a temp file name in the proper directory.
+	dsttmp="$dstdir/#inst.$$#"
+
+	# Move or copy the file name to the temp name
+	$doit $instcmd $src $dsttmp || exit 1
+
+	# Update permissions and strip as needed, then move to the final name.
+	# If the chmod, strip, rm, or mv commands fail, remove the installed
+	# file...
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $stripopt "$dsttmp" || echo "warning: Unable to strip $dst!"; fi
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp" || echo "warning: Unable to change owner of $dst!"; fi
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp" || echo "warning: Unable to change group of $dst!"; fi
+
+	trap "rm -f ${dsttmp}" 0 &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; fi &&
+	$doit $rmcmd -f "$dstdir/$dstfile" &&
+	$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+fi
+
+exit 0

pdfio-common.c

@@ -375,9 +375,9 @@ _pdfioFileSeek(pdfio_file_t *pdf,	// I - PDF file
     if (whence != SEEK_END && offset >= pdf->bufpos && offset < (pdf->bufpos + pdf->bufend - pdf->buffer))
     {
       // Yes, seek within existing buffer...
-      pdf->bufptr = pdf->buffer + offset - pdf->bufpos;
+      pdf->bufptr = pdf->buffer + (offset - pdf->bufpos);
       PDFIO_DEBUG("_pdfioFileSeek: Seek within buffer, bufpos=%ld.\n", (long)pdf->bufpos);
-      PDFIO_DEBUG("_pdfioFileSeek: buffer=%p, bufptr=%p, bufend=%p\n", pdf->buffer, pdf->bufptr, pdf->bufend);
+      PDFIO_DEBUG("_pdfioFileSeek: buffer=%p, bufptr=%p(<%02X%02X...>), bufend=%p\n", pdf->buffer, pdf->bufptr, pdf->bufptr[0] & 255, pdf->bufptr[1] & 255, pdf->bufend);
       return (offset);
     }
 

pdfio-content.c

@@ -1,16 +1,12 @@
 //
 // Content helper functions for PDFio.
 //
-// Copyright © 2021 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
 //
 
-//
-// Include necessary headers...
-//
-
 #include "pdfio-private.h"
 #include "pdfio-content.h"
 #include "ttf.h"
@@ -670,6 +666,9 @@ pdfioContentSave(pdfio_stream_t *st)	// I - Stream
 //
 // 'pdfioContentSetDashPattern()' - Set the stroke pattern.
 //
+// This function sets the stroke pattern when drawing lines.  If "on" and "off"
+// are 0, a solid line is drawn.
+//
 
 bool					// O - `true` on success, `false` on failure
 pdfioContentSetDashPattern(
@@ -678,7 +677,12 @@ pdfioContentSetDashPattern(
     double         on,			// I - On length
     double         off)			// I - Off length
 {
-  return (pdfioStreamPrintf(st, "[%g %g] %g d\n", on, off, phase));
+  if (on <= 0.0 && off <= 0.0)
+    return (pdfioStreamPrintf(st, "[] %g d\n", phase));
+  else if (fabs(on - off) < 0.001)
+    return (pdfioStreamPrintf(st, "[%g] %g d\n", on, phase));
+  else
+    return (pdfioStreamPrintf(st, "[%g %g] %g d\n", on, off, phase));
 }
 
 
@@ -1056,6 +1060,104 @@ pdfioContentTextEnd(pdfio_stream_t *st)	// I - Stream
 }
 
 
+//
+// 'pdfioContentTextMeasure()' - Measure a text string and return its width.
+//
+// This function measures the given text string "s" and returns its width based
+// on "size". The text string must always use the UTF-8 (Unicode) encoding but
+// any control characters (such as newlines) are ignored.
+//
+
+double					// O - Width
+pdfioContentTextMeasure(
+    pdfio_obj_t *font,			// I - Font object created by @link pdfioFileCreateFontObjFromFile@
+    const char  *s,			// I - UTF-8 string
+    double      size)			// I - Font size/height
+{
+  const char	*subtype;		// Font sub-type
+  ttf_t		*ttf = (ttf_t *)_pdfioObjGetExtension(font);
+					// TrueType font data
+  ttf_rect_t	extents;		// Text extents
+  int		ch;			// Unicode character
+  char		temp[1024],		// Temporary string
+		*tempptr;		// Pointer into temporary string
+
+
+  if ((subtype = pdfioObjGetSubtype(font)) == NULL || strcmp(subtype, "Type0"))
+  {
+    // Map non-CP1282 characters to '?', everything else as-is...
+    tempptr = temp;
+
+    while (*s && tempptr < (temp + sizeof(temp) - 3))
+    {
+      if ((*s & 0xe0) == 0xc0)
+      {
+	// Two-byte UTF-8
+        ch = ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);
+	s += 2;
+      }
+      else if ((*s & 0xf0) == 0xe0)
+      {
+	// Three-byte UTF-8
+        ch = ((s[0] & 0x0f) << 12) | ((s[1] & 0x3f) << 6) | (s[2] & 0x3f);
+	s += 3;
+      }
+      else if ((*s & 0xf8) == 0xf0)
+      {
+	// Four-byte UTF-8
+        ch = ((s[0] & 0x07) << 18) | ((s[1] & 0x3f) << 12) | ((s[2] & 0x3f) << 6) | (s[3] & 0x3f);
+	s += 4;
+      }
+      else
+      {
+	ch = *s++;
+      }
+
+      if (ch > 255)
+      {
+	// Try mapping from Unicode to CP1252...
+	size_t i;			// Looping var
+
+	for (i = 0; i < (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])); i ++)
+	{
+	  if (ch == _pdfio_cp1252[i])
+	    break;
+	}
+
+	if (i >= (sizeof(_pdfio_cp1252) / sizeof(_pdfio_cp1252[0])))
+	  ch = '?';			// Unsupported chars map to ?
+      }
+
+      if (ch < 128)
+      {
+        // ASCII
+	*tempptr++ = ch;
+      }
+      else if (ch < 2048)
+      {
+        // 2-byte UTF-8
+        *tempptr++ = 0xc0 | ((ch >> 6) & 0x1f);
+        *tempptr++ = 0x80 | (ch & 0x3f);
+      }
+      else
+      {
+        // 3-byte UTF-8
+        *tempptr++ = 0xe0 | ((ch >> 12) & 0x0f);
+        *tempptr++ = 0x80 | ((ch >> 6) & 0x3f);
+        *tempptr++ = 0x80 | (ch & 0x3f);
+      }
+    }
+
+    *tempptr = '\0';
+    s        = temp;
+  }
+
+  ttfGetExtents(ttf, size, s, &extents);
+
+  return (extents.right - extents.left);
+}
+
+
 //
 // 'pdfioContentTextMoveLine()' - Move to the next line and offset.
 //
@@ -1085,17 +1187,97 @@ pdfioContentTextMoveTo(
 
 
 //
-// 'pdfioContentTextNextLine()' - Move to the next line.
+// 'pdfioContentTextNewLine()' - Move to the next line.
 //
 
 bool					// O - `true` on success, `false` on failure
-pdfioContentTextNextLine(
+pdfioContentTextNewLine(
     pdfio_stream_t *st)			// I - Stream
 {
   return (pdfioStreamPuts(st, "T*\n"));
 }
 
 
+//
+// 'pdfioContentTextNewLineShow()' - Move to the next line and show text.
+//
+// This function moves to the next line and then shows some text with optional
+// word and character spacing in a PDF content stream. The "unicode" argument
+// specifies that the current font maps to full Unicode.  The "s" argument
+// specifies a UTF-8 encoded string.
+//
+
+bool					// O - `true` on success, `false` on failure
+pdfioContentTextNewLineShow(
+    pdfio_stream_t *st,			// I - Stream
+    double         ws,			// I - Word spacing or `0.0` for none
+    double         cs,			// I - Character spacing or `0.0` for none
+    bool           unicode,		// I - Unicode text?
+    const char     *s)			// I - String to show
+{
+  bool	newline = false;		// New line?
+  char	op;				// Text operator
+
+
+  // Write word and/or character spacing as needed...
+  if (ws > 0.0 || cs > 0.0)
+  {
+    // Use " operator to show text with word and character spacing...
+    if (!pdfioStreamPrintf(st, "%g %g", ws, cs))
+      return (false);
+
+    op = '\"';
+  }
+  else
+  {
+    // Use ' operator to show text with the defaults...
+    op = '\'';
+  }
+
+  // Write the string...
+  if (!write_string(st, unicode, s, &newline))
+    return (false);
+
+  // Draw it...
+  if (newline)
+    return (pdfioStreamPrintf(st, "%c T*\n", op));
+  else
+    return (pdfioStreamPrintf(st, "%c\n", op));
+}
+
+
+//
+// 'pdfioContentTextNewLineShowf()' - Show formatted text.
+//
+// This function moves to the next line and shows some formatted text with
+// optional word and character spacing in a PDF content stream. The "unicode"
+// argument specifies that the current font maps to full Unicode.  The "format"
+// argument specifies a UTF-8 encoded `printf`-style format string.
+//
+
+bool					// O - `true` on success, `false` on failure
+pdfioContentTextNewLineShowf(
+    pdfio_stream_t *st,			// I - Stream
+    double         ws,			// I - Word spacing or `0.0` for none
+    double         cs,			// I - Character spacing or `0.0` for none
+    bool           unicode,		// I - Unicode text?
+    const char     *format,		// I - `printf`-style format string
+    ...)				// I - Additional arguments as needed
+{
+  char		buffer[8192];		// Text buffer
+  va_list	ap;			// Argument pointer
+
+
+  // Format the string...
+  va_start(ap, format);
+  vsnprintf(buffer, sizeof(buffer), format, ap);
+  va_end(ap);
+
+  // Show it...
+  return (pdfioContentTextNewLineShow(st, ws, cs, unicode, buffer));
+}
+
+
 //
 // 'pdfioContentTextShow()' - Show text.
 //
@@ -1128,9 +1310,9 @@ pdfioContentTextShow(
 //
 // 'pdfioContentTextShowf()' - Show formatted text.
 //
-// This function shows some text in a PDF content stream. The "unicode" argument
-// specifies that the current font maps to full Unicode.  The "format" argument
-// specifies a UTF-8 encoded `printf`-style format string.
+// This function shows some formatted text in a PDF content stream. The
+// "unicode" argument specifies that the current font maps to full Unicode.
+// The "format" argument specifies a UTF-8 encoded `printf`-style format string.
 //
 
 bool
@@ -1281,13 +1463,13 @@ pdfioFileCreateFontObjFromFile(
   pdfio_dict_t	*dict,			// Font dictionary
 		*desc,			// Font descriptor
 		*file;			// Font file dictionary
-  pdfio_obj_t	*obj,			// Font object
+  pdfio_obj_t	*obj = NULL,		// Font object
 		*desc_obj,		// Font descriptor object
 		*file_obj;		// Font file object
   const char	*basefont;		// Base font name
   pdfio_array_t	*bbox;			// Font bounding box array
   pdfio_stream_t *st;			// Font stream
-  int		fd;			// File
+  int		fd = -1;		// File
   unsigned char	buffer[16384];		// Read buffer
   ssize_t	bytes;			// Bytes read
 
@@ -1316,48 +1498,32 @@ pdfioFileCreateFontObjFromFile(
 
   // Create the font file dictionary and object...
   if ((file = pdfioDictCreate(pdf)) == NULL)
-  {
-    ttfDelete(font);
-    close(fd);
-    return (NULL);
-  }
+    goto done;
 
   pdfioDictSetName(file, "Filter", "FlateDecode");
 
   if ((file_obj = pdfioFileCreateObj(pdf, file)) == NULL)
-  {
-    ttfDelete(font);
-    close(fd);
-    return (NULL);
-  }
+    goto done;
 
   if ((st = pdfioObjCreateStream(file_obj, PDFIO_FILTER_FLATE)) == NULL)
-  {
-    ttfDelete(font);
-    close(fd);
-    return (NULL);
-  }
+    goto done;
 
   while ((bytes = read(fd, buffer, sizeof(buffer))) > 0)
   {
     if (!pdfioStreamWrite(st, buffer, (size_t)bytes))
     {
-      ttfDelete(font);
-      close(fd);
       pdfioStreamClose(st);
-      return (NULL);
+      goto done;
     }
   }
 
   close(fd);
+  fd = -1;
   pdfioStreamClose(st);
 
   // Create the font descriptor dictionary and object...
   if ((bbox = pdfioArrayCreate(pdf)) == NULL)
-  {
-    ttfDelete(font);
-    return (NULL);
-  }
+    goto done;
 
   ttfGetBounds(font, &bounds);
 
@@ -1367,10 +1533,7 @@ pdfioFileCreateFontObjFromFile(
   pdfioArrayAppendNumber(bbox, bounds.top);
 
   if ((desc = pdfioDictCreate(pdf)) == NULL)
-  {
-    ttfDelete(font);
-    return (NULL);
-  }
+    goto done;
 
   basefont = pdfioStringCreate(pdf, ttfGetPostScriptName(font));
 
@@ -1389,59 +1552,70 @@ pdfioFileCreateFontObjFromFile(
   pdfioDictSetNumber(desc, "StemV", ttfGetWeight(font) / 4 + 25);
 
   if ((desc_obj = pdfioFileCreateObj(pdf, desc)) == NULL)
-  {
-    ttfDelete(font);
-    return (NULL);
-  }
+    goto done;
 
   pdfioObjClose(desc_obj);
 
   if (unicode)
   {
     // Unicode (CID) font...
-    pdfio_dict_t	*cid2gid;	// CIDToGIDMap dictionary
-    pdfio_obj_t		*cid2gid_obj;	// CIDToGIDMap object
+    pdfio_dict_t	*cid2gid,	// CIDToGIDMap dictionary
+			*to_unicode;	// ToUnicode dictionary
+    pdfio_obj_t		*cid2gid_obj,	// CIDToGIDMap object
+			*to_unicode_obj;// ToUnicode object
     size_t		i,		// Looping var
+			start,		// Start character
 			num_cmap;	// Number of CMap entries
     const int		*cmap;		// CMap entries
+    int			min_glyph,	// First glyph
+			max_glyph;	// Last glyph
+    unsigned short	glyphs[65536];	// Glyph to Unicode mapping
     unsigned char	*bufptr,	// Pointer into buffer
 			*bufend;	// End of buffer
     pdfio_dict_t	*type2;		// CIDFontType2 font dictionary
     pdfio_obj_t		*type2_obj;	// CIDFontType2 font object
     pdfio_array_t	*descendants;	// Decendant font list
     pdfio_dict_t	*sidict;	// CIDSystemInfo dictionary
+    pdfio_array_t	*w_array,	// Width array
+			*temp_array;	// Temporary width sub-array
+    int			w0, w1;		// Widths
+
+    // Create a CIDSystemInfo mapping to Adobe UCS2 v0 (Unicode)
+    if ((sidict = pdfioDictCreate(pdf)) == NULL)
+      goto done;
+
+    pdfioDictSetString(sidict, "Registry", "Adobe");
+    pdfioDictSetString(sidict, "Ordering", "Identity");
+    pdfioDictSetNumber(sidict, "Supplement", 0);
 
     // Create a CIDToGIDMap object for the Unicode font...
     if ((cid2gid = pdfioDictCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
 #ifndef DEBUG
     pdfioDictSetName(cid2gid, "Filter", "FlateDecode");
 #endif // !DEBUG
 
     if ((cid2gid_obj = pdfioFileCreateObj(pdf, cid2gid)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
 #ifdef DEBUG
     if ((st = pdfioObjCreateStream(cid2gid_obj, PDFIO_FILTER_NONE)) == NULL)
 #else
     if ((st = pdfioObjCreateStream(cid2gid_obj, PDFIO_FILTER_FLATE)) == NULL)
 #endif // DEBUG
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
-    cmap = ttfGetCMap(font, &num_cmap);
+    cmap      = ttfGetCMap(font, &num_cmap);
+    min_glyph = 65536;
+    max_glyph = 0;
+    memset(glyphs, 0, sizeof(glyphs));
+
+    PDFIO_DEBUG("pdfioFileCreateFontObjFromFile: num_cmap=%u\n", (unsigned)num_cmap);
 
     for (i = 0, bufptr = buffer, bufend = buffer + sizeof(buffer); i < num_cmap; i ++)
     {
+      PDFIO_DEBUG("pdfioFileCreateFontObjFromFile: cmap[%u]=%d\n", (unsigned)i, cmap[i]);
       if (cmap[i] < 0)
       {
         // Map undefined glyph to .notdef...
@@ -1453,6 +1627,12 @@ pdfioFileCreateFontObjFromFile(
         // Map to specified glyph...
         *bufptr++ = (unsigned char)(cmap[i] >> 8);
         *bufptr++ = (unsigned char)(cmap[i] & 255);
+
+        glyphs[cmap[i]] = i;
+        if (cmap[i] < min_glyph)
+          min_glyph = cmap[i];
+        if (cmap[i] > max_glyph)
+          max_glyph = cmap[i];
       }
 
       if (bufptr >= bufend)
@@ -1461,8 +1641,7 @@ pdfioFileCreateFontObjFromFile(
         if (!pdfioStreamWrite(st, buffer, (size_t)(bufptr - buffer)))
         {
 	  pdfioStreamClose(st);
-          ttfDelete(font);
-          return (NULL);
+	  goto done;
         }
 
         bufptr = buffer;
@@ -1475,30 +1654,102 @@ pdfioFileCreateFontObjFromFile(
       if (!pdfioStreamWrite(st, buffer, (size_t)(bufptr - buffer)))
       {
 	pdfioStreamClose(st);
-	ttfDelete(font);
-	return (NULL);
+	goto done;
       }
     }
 
     pdfioStreamClose(st);
 
+    // ToUnicode mapping object
+    to_unicode = pdfioDictCreate(pdf);
+    pdfioDictSetName(to_unicode, "Type", "CMap");
+    pdfioDictSetName(to_unicode, "CMapName", "Adobe-Identity-UCS2");
+    pdfioDictSetDict(to_unicode, "CIDSystemInfo", sidict);
+
+#ifndef DEBUG
+    pdfioDictSetName(to_unicode, "Filter", "FlateDecode");
+#endif // !DEBUG
+
+    if ((to_unicode_obj = pdfioFileCreateObj(pdf, to_unicode)) == NULL)
+      goto done;
+
+#ifdef DEBUG
+    if ((st = pdfioObjCreateStream(to_unicode_obj, PDFIO_FILTER_NONE)) == NULL)
+#else
+    if ((st = pdfioObjCreateStream(to_unicode_obj, PDFIO_FILTER_FLATE)) == NULL)
+#endif // DEBUG
+      goto done;
+
+    pdfioStreamPuts(st,
+		    "stream\n"
+		    "/CIDInit /ProcSet findresource begin\n"
+		    "12 dict begin\n"
+		    "begincmap\n"
+		    "/CIDSystemInfo<<\n"
+		    "/Registry (Adobe)\n"
+		    "/Ordering (UCS2)\n"
+		    "/Supplement 0\n"
+		    ">> def\n"
+		    "/CMapName /Adobe-Identity-UCS2 def\n"
+		    "/CMapType 2 def\n"
+		    "1 begincodespacerange\n"
+		    "<0000> <FFFF>\n"
+		    "endcodespacerange\n"
+		    "1 beginbfrange\n"
+		    "<0000> <FFFF> <0000>\n"
+                    "endbfrange\n"
+                    "endcmap\n"
+                    "CMapName currentdict /CMap defineresource pop\n"
+                    "end\n"
+                    "end\n");
+
+    pdfioStreamClose(st);
+
     // Create a CIDFontType2 dictionary for the Unicode font...
     if ((type2 = pdfioDictCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
-    if ((sidict = pdfioDictCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+    // Width array
+    if ((w_array = pdfioArrayCreate(pdf)) == NULL)
+      goto done;
 
-    // CIDSystemInfo mapping to Adobe UCS2 v0 (Unicode)
-    pdfioDictSetString(sidict, "Registry", "Adobe");
-    pdfioDictSetString(sidict, "Ordering", "Identity");
-    pdfioDictSetNumber(sidict, "Supplement", 0);
+    for (start = 0, w0 = ttfGetWidth(font, 0), i = 1; i < 65536; start = i, w0 = w1, i ++)
+    {
+      while (i < 65536 && (w1 = ttfGetWidth(font, i)) == w0)
+        i ++;
+
+      if ((i - start) > 1)
+      {
+        // Encode a repeating sequence...
+        pdfioArrayAppendNumber(w_array, start);
+        pdfioArrayAppendNumber(w_array, i - 1);
+        pdfioArrayAppendNumber(w_array, w0);
+      }
+      else
+      {
+        // Encode a non-repeating sequence...
+        pdfioArrayAppendNumber(w_array, start);
+
+        if ((temp_array = pdfioArrayCreate(pdf)) == NULL)
+	  goto done;
+
+        pdfioArrayAppendNumber(temp_array, w0);
+        for (w0 = w1, i ++; i < 65536; w0 = w1, i ++)
+        {
+          if ((w1 = ttfGetWidth(font, i)) == w0 && i < 65535)
+            break;
+
+	  pdfioArrayAppendNumber(temp_array, w0);
+        }
+
+        if (i == 65536)
+	  pdfioArrayAppendNumber(temp_array, w0);
+	else
+	  i --;
+
+        pdfioArrayAppendArray(w_array, temp_array);
+      }
+    }
 
     // Then the dictionary for the CID base font...
     pdfioDictSetName(type2, "Type", "Font");
@@ -1507,56 +1758,41 @@ pdfioFileCreateFontObjFromFile(
     pdfioDictSetDict(type2, "CIDSystemInfo", sidict);
     pdfioDictSetObj(type2, "CIDToGIDMap", cid2gid_obj);
     pdfioDictSetObj(type2, "FontDescriptor", desc_obj);
+    pdfioDictSetArray(type2, "W", w_array);
 
     if ((type2_obj = pdfioFileCreateObj(pdf, type2)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
     pdfioObjClose(type2_obj);
 
     // Create a Type 0 font object...
     if ((descendants = pdfioArrayCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
     pdfioArrayAppendObj(descendants, type2_obj);
 
     if ((dict = pdfioDictCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
     pdfioDictSetName(dict, "Type", "Font");
     pdfioDictSetName(dict, "Subtype", "Type0");
     pdfioDictSetName(dict, "BaseFont", basefont);
     pdfioDictSetArray(dict, "DescendantFonts", descendants);
     pdfioDictSetName(dict, "Encoding", "Identity-H");
+    pdfioDictSetObj(dict, "ToUnicode", to_unicode_obj);
 
-    if ((obj = pdfioFileCreateObj(pdf, dict)) == NULL)
-      return (NULL);
-
-    pdfioObjClose(obj);
+    if ((obj = pdfioFileCreateObj(pdf, dict)) != NULL)
+      pdfioObjClose(obj);
   }
   else
   {
     // Simple (CP1282 or custom encoding) 8-bit font...
     if (ttfGetMaxChar(font) >= 255 && !pdf->cp1252_obj && !create_cp1252(pdf))
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
     // Create a TrueType font object...
     if ((dict = pdfioDictCreate(pdf)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
+      goto done;
 
     pdfioDictSetName(dict, "Type", "Font");
     pdfioDictSetName(dict, "Subtype", "TrueType");
@@ -1566,16 +1802,16 @@ pdfioFileCreateFontObjFromFile(
 
     pdfioDictSetObj(dict, "FontDescriptor", desc_obj);
 
-    if ((obj = pdfioFileCreateObj(pdf, dict)) == NULL)
-    {
-      ttfDelete(font);
-      return (NULL);
-    }
-
-    pdfioObjClose(obj);
+    if ((obj = pdfioFileCreateObj(pdf, dict)) != NULL)
+      pdfioObjClose(obj);
   }
 
-  ttfDelete(font);
+  done:
+
+  if (fd >= 0)
+    close(fd);
+
+  _pdfioObjSetExtension(obj, font, (_pdfio_extfree_t)ttfDelete);
 
   return (obj);
 }

pdfio-content.h

@@ -1,7 +1,7 @@
 //
 // Public content header file for PDFio.
 //
-// Copyright © 2021 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
@@ -9,18 +9,7 @@
 
 #ifndef PDFIO_CONTENT_H
 #  define PDFIO_CONTENT_H
-
-//
-// Include necessary headers...
-//
-
 #  include "pdfio.h"
-
-
-//
-// C++ magic...
-//
-
 #  ifdef __cplusplus
 extern "C" {
 #  endif // __cplusplus
@@ -126,9 +115,12 @@ extern bool		pdfioContentSetTextXScaling(pdfio_stream_t *st, double percent) _PD
 extern bool		pdfioContentStroke(pdfio_stream_t *st) _PDFIO_PUBLIC;
 extern bool		pdfioContentTextBegin(pdfio_stream_t *st) _PDFIO_PUBLIC;
 extern bool		pdfioContentTextEnd(pdfio_stream_t *st) _PDFIO_PUBLIC;
+extern double		pdfioContentTextMeasure(pdfio_obj_t *font, const char *s, double size) _PDFIO_PUBLIC;
 extern bool		pdfioContentTextMoveLine(pdfio_stream_t *st, double tx, double ty) _PDFIO_PUBLIC;
 extern bool		pdfioContentTextMoveTo(pdfio_stream_t *st, double tx, double ty) _PDFIO_PUBLIC;
-extern bool		pdfioContentTextNextLine(pdfio_stream_t *st) _PDFIO_PUBLIC;
+extern bool		pdfioContentTextNewLine(pdfio_stream_t *st) _PDFIO_PUBLIC;
+extern bool		pdfioContentTextNewLineShow(pdfio_stream_t *st, double ws, double cs, bool unicode, const char *s) _PDFIO_PUBLIC;
+extern bool		pdfioContentTextNewLineShowf(pdfio_stream_t *st, double ws, double cs, bool unicode, const char *format, ...) _PDFIO_PUBLIC _PDFIO_FORMAT(5,6);
 extern bool		pdfioContentTextShow(pdfio_stream_t *st, bool unicode, const char *s) _PDFIO_PUBLIC;
 extern bool		pdfioContentTextShowf(pdfio_stream_t *st, bool unicode, const char *format, ...) _PDFIO_PUBLIC _PDFIO_FORMAT(3,4);
 extern bool		pdfioContentTextShowJustified(pdfio_stream_t *st, bool unicode, size_t num_fragments, const double *offsets, const char * const *fragments) _PDFIO_PUBLIC;
@@ -151,10 +143,6 @@ extern bool		pdfioPageDictAddFont(pdfio_dict_t *dict, const char *name, pdfio_ob
 extern bool		pdfioPageDictAddImage(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) _PDFIO_PUBLIC;
 
 
-//
-// C++ magic...
-//
-
 #  ifdef __cplusplus
 }
 #  endif // __cplusplus

pdfio-crypto.c

@@ -1,7 +1,7 @@
 //
 // Cryptographic support functions for PDFio.
 //
-// Copyright © 2021 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
@@ -446,10 +446,18 @@ _pdfio_crypto_cb_t			// O  - Decryption callback or `NULL` for none
 
         // Initialize the RC4 context using 40 bits of the digest...
 	_pdfioCryptoRC4Init(&ctx->rc4, digest, 5);
+	*ivlen = 0;
 	return ((_pdfio_crypto_cb_t)_pdfioCryptoRC4Crypt);
 
-    case PDFIO_ENCRYPTION_RC4_128 :
     case PDFIO_ENCRYPTION_AES_128 :
+        if (*ivlen < 16)
+        {
+          *ivlen = 0;
+          _pdfioFileError(pdf, "Value too short for AES encryption.");
+          return (NULL);
+        }
+
+    case PDFIO_ENCRYPTION_RC4_128 :
 	// Copy the key data for the MD5 hash.
 	memcpy(data, pdf->file_key, sizeof(pdf->file_key));
 	data[16] = (uint8_t)obj->number;

pdfio-file.c

@@ -334,6 +334,32 @@ pdfioFileCreateArrayObj(
 }
 
 
+//
+// 'pdfioFileCreateNumberObj()' - Create a new object in a PDF file containing a number.
+//
+// This function creates a new object with a number value in a PDF file.
+// You must call @link pdfioObjClose@ to write the object to the file.
+//
+
+pdfio_obj_t *				// O - New object
+pdfioFileCreateNumberObj(
+    pdfio_file_t *pdf,			// I - PDF file
+    double       number)		// I - Number value
+{
+  _pdfio_value_t	value;		// Object value
+
+
+  // Range check input...
+  if (!pdf)
+    return (NULL);
+
+  value.type         = PDFIO_VALTYPE_NUMBER;
+  value.value.number = number;
+
+  return (_pdfioFileCreateObj(pdf, NULL, &value));
+}
+
+
 //
 // 'pdfioFileCreateObj()' - Create a new object in a PDF file.
 //
@@ -639,6 +665,32 @@ pdfioFileCreatePage(pdfio_file_t *pdf,	// I - PDF file
 }
 
 
+//
+// 'pdfioFileCreateStringObj()' - Create a new object in a PDF file containing a string.
+//
+// This function creates a new object with a string value in a PDF file.
+// You must call @link pdfioObjClose@ to write the object to the file.
+//
+
+pdfio_obj_t *				// O - New object
+pdfioFileCreateStringObj(
+    pdfio_file_t *pdf,			// I - PDF file
+    const char   *string)		// I - String
+{
+  _pdfio_value_t	value;		// Object value
+
+
+  // Range check input...
+  if (!pdf)
+    return (NULL);
+
+  value.type         = PDFIO_VALTYPE_STRING;
+  value.value.string = string;
+
+  return (_pdfioFileCreateObj(pdf, NULL, &value));
+}
+
+
 //
 // 'pdfioFileCreateTemporary()' - Create a temporary PDF file.
 //
@@ -1514,6 +1566,7 @@ load_obj_stream(pdfio_obj_t *obj)	// I - Object to load
 
     // Skip offset
     _pdfioTokenGet(&tb, buffer, sizeof(buffer));
+    PDFIO_DEBUG("load_obj_stream: %ld at offset %s\n", (long)number, buffer);
   }
 
   if (!buffer[0])
@@ -1737,6 +1790,10 @@ load_xref(
         return (false);
       }
 
+      PDFIO_DEBUG("load_xref: tb.bufptr=%p, tb.bufend=%p, tb.bufptr[0]=0x%02x, tb.bufptr[0]=0x%02x\n", tb.bufptr, tb.bufend, tb.bufptr[0], tb.bufptr[1]);
+      if (tb.bufptr && tb.bufptr < tb.bufend && (tb.bufptr[0] == 0x0d || tb.bufptr[0] == 0x0a))
+	tb.bufptr ++;			// Skip trailing CR or LF after token
+
       _pdfioTokenFlush(&tb);
 
       obj->stream_offset = _pdfioFileTell(pdf);
@@ -1759,9 +1816,9 @@ load_xref(
       w_2     = w[0];
       w_3     = w[0] + w[1];
 
-      if (w[1] == 0 || w[2] > 2 || w[0] > sizeof(buffer) || w[1] > sizeof(buffer) || w[2] > sizeof(buffer) || w_total > sizeof(buffer))
+      if (w[1] == 0 || w[2] > 4 || w[0] > sizeof(buffer) || w[1] > sizeof(buffer) || w[2] > sizeof(buffer) || w_total > sizeof(buffer))
       {
-	_pdfioFileError(pdf, "Cross-reference stream has invalid W key.");
+	_pdfioFileError(pdf, "Cross-reference stream has invalid W key [%u %u %u].", (unsigned)w[0], (unsigned)w[1], (unsigned)w[2]);
 	return (false);
       }
 
@@ -1801,9 +1858,11 @@ load_xref(
 	    }
 	  }
 
+          // Offset
 	  for (i = 1, offset = buffer[w_2]; i < w[1]; i ++)
 	    offset = (offset << 8) | buffer[w_2 + i];
 
+          // Generation number
 	  switch (w[2])
 	  {
 	    default :
@@ -1815,6 +1874,19 @@ load_xref(
 	    case 2 :
 		generation = (buffer[w_3] << 8) | buffer[w_3 + 1];
 		break;
+	    case 3 :
+	        // Issue #46: Stupid Microsoft PDF generator using 3 bytes to
+	        // encode 16-bit generation numbers == 0 (probably a lazy coder
+	        // stuffing things into an array of 64-bit unsigned integers)
+		generation = (buffer[w_3] << 16) | (buffer[w_3 + 1] << 8) | buffer[w_3 + 2];
+		if (generation > 65535)
+		  generation = 65535;
+		break;
+	    case 4 : // Even stupider :)
+		generation = (buffer[w_3] << 24) | (buffer[w_3 + 1] << 16) | (buffer[w_3 + 2] << 8) | buffer[w_3 + 3];
+		if (generation > 65535)
+		  generation = 65535;
+		break;
 	  }
 
 	  // Create a placeholder for the object in memory...
@@ -1846,8 +1918,18 @@ load_xref(
 		break;
 	    }
 
-	    if (i >= num_sobjs && num_sobjs < (sizeof(sobjs) / sizeof(sobjs[0])))
-	      sobjs[num_sobjs ++] = (size_t)offset;
+	    if (i >= num_sobjs)
+	    {
+	      if (num_sobjs < (sizeof(sobjs) / sizeof(sobjs[0])))
+	      {
+		sobjs[num_sobjs ++] = (size_t)offset;
+	      }
+	      else
+	      {
+		_pdfioFileError(pdf, "Too many object streams.");
+	        return (false);
+	      }
+	    }
 	  }
 	  else if (!current)
 	  {
@@ -1895,12 +1977,12 @@ load_xref(
 	}
       }
     }
-    else if (!strcmp(line, "xref"))
+    else if (!strncmp(line, "xref", 4) && (!line[4] || isspace(line[4] & 255)))
     {
       // Read the xref tables
       while (_pdfioFileGets(pdf, line, sizeof(line)))
       {
-	if (!strcmp(line, "trailer"))
+	if (!strncmp(line, "trailer", 7) && (!line[7] || isspace(line[7] & 255)))
 	  break;
 	else if (!line[0])
 	  continue;
@@ -1965,7 +2047,7 @@ load_xref(
 	}
       }
 
-      if (strcmp(line, "trailer"))
+      if (strncmp(line, "trailer", 7))
       {
 	_pdfioFileError(pdf, "Missing trailer.");
 	return (false);

pdfio-object.c

@@ -7,10 +7,6 @@
 // information.
 //
 
-//
-// Include necessary headers...
-//
-
 #include "pdfio-private.h"
 
 
@@ -221,8 +217,13 @@ void
 _pdfioObjDelete(pdfio_obj_t *obj)	// I - Object
 {
   if (obj)
+  {
     pdfioStreamClose(obj->stream);
 
+    if (obj->datafree)
+      (obj->datafree)(obj->data);
+  }
+
   free(obj);
 }
 
@@ -267,6 +268,17 @@ pdfioObjGetDict(pdfio_obj_t *obj)	// I - Object
 }
 
 
+//
+// '_pdfioObjGetExtension()' - Get the extension pointer for an object.
+//
+
+void *					// O - Extension data
+_pdfioObjGetExtension(pdfio_obj_t *obj)	// I - Object
+{
+  return (obj->data);
+}
+
+
 //
 // 'pdfioObjGetGeneration()' - Get the object's generation number.
 //
@@ -420,6 +432,9 @@ _pdfioObjLoad(pdfio_obj_t *obj)		// I - Object
   }
 
   ptr += 3;
+  while (*ptr && isspace(*ptr & 255))
+    ptr ++;
+
   _pdfioFileConsume(obj->pdf, (size_t)(ptr - line));
 
   // Then grab the object value...
@@ -438,11 +453,15 @@ _pdfioObjLoad(pdfio_obj_t *obj)		// I - Object
     return (false);
   }
 
+  PDFIO_DEBUG("_pdfioObjLoad: tb.bufptr=%p, tb.bufend=%p, tb.bufptr[0]=0x%02x, tb.bufptr[0]=0x%02x\n", tb.bufptr, tb.bufend, tb.bufptr[0], tb.bufptr[1]);
+  if (tb.bufptr && tb.bufptr < tb.bufend && (tb.bufptr[0] == 0x0d || tb.bufptr[0] == 0x0a))
+    tb.bufptr ++;			// Skip trailing CR or LF after token
+
   _pdfioTokenFlush(&tb);
 
   if (!strcmp(line, "stream"))
   {
-    // Yes, save its location...
+    // Yes, this is an embedded stream so save its location...
     obj->stream_offset = _pdfioFileTell(obj->pdf);
     PDFIO_DEBUG("_pdfioObjLoad: stream_offset=%lu.\n", (unsigned long)obj->stream_offset);
   }
@@ -491,6 +510,21 @@ pdfioObjOpenStream(pdfio_obj_t *obj,	// I - Object
 }
 
 
+//
+// '_pdfioObjSetExtension()' - Set extension data for an object.
+//
+
+void
+_pdfioObjSetExtension(
+    pdfio_obj_t      *obj,		// I - Object
+    void             *data,		// I - Data
+    _pdfio_extfree_t datafree)		// I - Free function
+{
+  obj->data     = data;
+  obj->datafree = datafree;
+}
+
+
 //
 // 'write_obj_header()' - Write the object header...
 //

pdfio-private.h

@@ -1,7 +1,7 @@
 //
 // Private header file for PDFio.
 //
-// Copyright © 2021-2022 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
@@ -9,41 +9,22 @@
 
 #ifndef PDFIO_PRIVATE_H
 #  define PDFIO_PRIVATE_H
-
-//
-// Include necessary headers...
-//
-
 #  ifdef _WIN32
-/*
- * Disable bogus VS warnings/errors...
- */
-
-#    define _CRT_SECURE_NO_WARNINGS
+#    define _CRT_SECURE_NO_WARNINGS	// Disable bogus VS warnings/errors...
 #  endif // _WIN32
-
 #  include "pdfio.h"
 #  include <stdarg.h>
 #  include <stdint.h>
 #  include <string.h>
+#  include <ctype.h>
 #  include <errno.h>
 #  include <inttypes.h>
 #  include <fcntl.h>
 #  ifdef _WIN32
 #    include <io.h>
 #    include <direct.h>
-
-/*
- * Microsoft renames the POSIX functions to _name, and introduces
- * a broken compatibility layer using the original names.  As a result,
- * random crashes can occur when, for example, strdup() allocates memory
- * from a different heap than used by malloc() and free().
- *
- * To avoid moronic problems like this, we #define the POSIX function
- * names to the corresponding non-standard Microsoft names.
- */
-
-#    define access	_access
+#    include <windows.h> // GetTempPathA
+#    define access	_access		// Map standard POSIX/C99 names
 #    define close	_close
 #    define fileno	_fileno
 #    define lseek	_lseek
@@ -56,25 +37,18 @@
 #    define unlink	_unlink
 #    define vsnprintf	_vsnprintf
 #    define write	_write
-
-/*
- * Map various parameters for POSIX...
- */
-
-#    define F_OK	00
+#    define F_OK	00		// POSIX parameters/flags
 #    define W_OK	02
 #    define R_OK	04
-#    define O_RDONLY	_O_RDONLY
+#    define O_RDONLY	_O_RDONLY	// Map standard POSIX open flags
 #    define O_WRONLY	_O_WRONLY
 #    define O_CREAT	_O_CREAT
 #    define O_TRUNC	_O_TRUNC
 #    define O_BINARY	_O_BINARY
 #  else // !_WIN32
 #    include <unistd.h>
-#    define O_BINARY	0
+#    define O_BINARY	0		// Map Windows-specific open flag
 #  endif // _WIN32
-#  include <string.h>
-#  include <ctype.h>
 #  include <zlib.h>
 
 
@@ -118,6 +92,9 @@
 
 #  define PDFIO_MAX_DEPTH	32	// Maximum nesting depth for values
 
+typedef void (*_pdfio_extfree_t)(void *);
+					// Extension data free function
+
 typedef enum _pdfio_mode_e		// Read/write mode
 {
   _PDFIO_MODE_READ,			// Read a PDF file
@@ -313,6 +290,8 @@ struct _pdfio_obj_s			// Object
   size_t	stream_length;		// Length of stream, if any
   _pdfio_value_t value;			// Dictionary/number/etc. value
   pdfio_stream_t *stream;		// Open stream, if any
+  void		*data;			// Extension data, if any
+  _pdfio_extfree_t datafree;		// Free callback for extension data
 };
 
 struct _pdfio_stream_s			// Stream
@@ -391,7 +370,9 @@ extern off_t		_pdfioFileTell(pdfio_file_t *pdf) _PDFIO_INTERNAL;
 extern bool		_pdfioFileWrite(pdfio_file_t *pdf, const void *buffer, size_t bytes) _PDFIO_INTERNAL;
 
 extern void		_pdfioObjDelete(pdfio_obj_t *obj) _PDFIO_INTERNAL;
+extern void		*_pdfioObjGetExtension(pdfio_obj_t *obj) _PDFIO_INTERNAL;
 extern bool		_pdfioObjLoad(pdfio_obj_t *obj) _PDFIO_INTERNAL;
+extern void		_pdfioObjSetExtension(pdfio_obj_t *obj, void *data, _pdfio_extfree_t datafree) _PDFIO_INTERNAL;
 
 extern pdfio_stream_t	*_pdfioStreamCreate(pdfio_obj_t *obj, pdfio_obj_t *length_obj, pdfio_filter_t compression) _PDFIO_INTERNAL;
 extern pdfio_stream_t	*_pdfioStreamOpen(pdfio_obj_t *obj, bool decode) _PDFIO_INTERNAL;
@@ -411,4 +392,5 @@ extern void		_pdfioValueDelete(_pdfio_value_t *v) _PDFIO_INTERNAL;
 extern _pdfio_value_t	*_pdfioValueRead(pdfio_file_t *pdf, pdfio_obj_t *obj, _pdfio_token_t *ts, _pdfio_value_t *v, size_t depth) _PDFIO_INTERNAL;
 extern bool		_pdfioValueWrite(pdfio_file_t *pdf, pdfio_obj_t *obj, _pdfio_value_t *v, off_t *length) _PDFIO_INTERNAL;
 
+
 #endif // !PDFIO_PRIVATE_H

pdfio-sha256.c

@@ -1,7 +1,7 @@
 //
 // SHA-256 functions for PDFio.
 //
-// Copyright © 2021 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 // Copyright © 2011 IETF Trust and the persons identified as authors of the
 // code.  All rights reserved.
 //
@@ -217,7 +217,7 @@ _pdfioCryptoSHA256Append(_pdfio_sha256_t *context, const uint8_t *message_array,
  */
 void
 _pdfioCryptoSHA256Finish(_pdfio_sha256_t *context,
-                 uint8_t Message_Digest[SHA256HashSize])
+                 uint8_t *Message_Digest)
 {
   SHA224_256ResultN(context, Message_Digest, SHA256HashSize);
 }

pdfio-stream.c

@@ -452,6 +452,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj,	// I - Object
       return (NULL);
     }
 
+    PDFIO_DEBUG("_pdfioStreamOpen: ivlen=%d\n", (int)ivlen);
     if (ivlen > 0)
       _pdfioFileConsume(st->pdf, ivlen);
 
@@ -464,11 +465,19 @@ _pdfioStreamOpen(pdfio_obj_t *obj,	// I - Object
     // Try to decode/decompress the contents of this object...
     const char	*filter = pdfioDictGetName(dict, "Filter");
 					// Filter value
+    pdfio_array_t *fa = pdfioDictGetArray(dict, "Filter");
+					// Filter array
+
+    if (!filter && fa && pdfioArrayGetSize(fa) == 1)
+    {
+      // Support single-valued arrays...
+      filter = pdfioArrayGetName(fa, 0);
+    }
 
     if (!filter)
     {
       // No single filter name, do we have a compound filter?
-      if (pdfioDictGetArray(dict, "Filter"))
+      if (fa)
       {
 	// TODO: Implement compound filters...
 	_pdfioFileError(st->pdf, "Unsupported compound stream filter.");
@@ -559,6 +568,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj,	// I - Object
       else
         st->predictor = _PDFIO_PREDICTOR_NONE;
 
+      PDFIO_DEBUG("_pdfioStreamOpen: pos=%ld\n", (long)_pdfioFileTell(st->pdf));
       if (sizeof(st->cbuffer) > st->remaining)
 	rbytes = _pdfioFileRead(st->pdf, st->cbuffer, st->remaining);
       else
@@ -579,12 +589,6 @@ _pdfioStreamOpen(pdfio_obj_t *obj,	// I - Object
       st->flate.next_in  = (Bytef *)st->cbuffer;
       st->flate.avail_in = (uInt)rbytes;
 
-      if (st->cbuffer[0] == 0x0a)
-      {
-        st->flate.next_in ++;		// Skip newline
-        st->flate.avail_in --;
-      }
-
       PDFIO_DEBUG("_pdfioStreamOpen: avail_in=%u, cbuffer=<%02X%02X%02X%02X%02X%02X%02X%02X...>\n", st->flate.avail_in, st->cbuffer[0], st->cbuffer[1], st->cbuffer[2], st->cbuffer[3], st->cbuffer[4], st->cbuffer[5], st->cbuffer[6], st->cbuffer[7]);
 
       if ((status = inflateInit(&(st->flate))) != Z_OK)
@@ -1008,6 +1012,7 @@ stream_read(pdfio_stream_t *st,		// I - Stream
             size_t         bytes)	// I - Number of bytes to read
 {
   ssize_t	rbytes;			// Bytes read
+  uInt		avail_in, avail_out;	// Previous flate values
 
 
   if (st->filter == PDFIO_FILTER_NONE)
@@ -1060,11 +1065,19 @@ stream_read(pdfio_stream_t *st,		// I - Stream
       st->flate.next_out  = (Bytef *)buffer;
       st->flate.avail_out = (uInt)bytes;
 
+      avail_in  = st->flate.avail_in;
+      avail_out = st->flate.avail_out;
+
       if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
       {
 	_pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status));
 	return (-1);
       }
+      else if (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out)
+      {
+	_pdfioFileError(st->pdf, "Corrupt stream data.");
+	return (-1);
+      }
 
       return (st->flate.next_out - (Bytef *)buffer);
     }
@@ -1113,12 +1126,15 @@ stream_read(pdfio_stream_t *st,		// I - Stream
 	  st->flate.avail_in = (uInt)rbytes;
 	}
 
+        avail_in  = st->flate.avail_in;
+        avail_out = st->flate.avail_out;
+
 	if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
 	{
 	  _pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status));
 	  return (-1);
 	}
-	else if (status == Z_STREAM_END)
+	else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out))
 	  break;
       }
 
@@ -1180,12 +1196,15 @@ stream_read(pdfio_stream_t *st,		// I - Stream
 	  st->flate.avail_in = (uInt)rbytes;
 	}
 
+        avail_in  = st->flate.avail_in;
+        avail_out = st->flate.avail_out;
+
 	if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
 	{
 	  _pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status));
 	  return (-1);
 	}
-	else if (status == Z_STREAM_END)
+	else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out))
 	  break;
       }
 

pdfio-token.c

@@ -495,6 +495,13 @@ _pdfioTokenRead(_pdfio_token_t *tb,	// I - Token buffer/stack
 	  *bufptr++ = (char)ch;
 	  break;
 	}
+	else if (ch == '>')
+	{
+	  // Issue #46: Empty hex string from Microsoft PDF generator; treat as
+	  // empty literal string...
+	  *buffer = '(';
+	  break;
+	}
 	else if (!isspace(ch & 255) && !isxdigit(ch & 255))
 	{
 	  _pdfioFileError(tb->pdf, "Syntax error: '<%c'", ch);

pdfio-value.c

@@ -383,7 +383,10 @@ _pdfioValueRead(pdfio_file_t   *pdf,	// I - PDF file
 	return (false);
       }
 
-      cb      = _pdfioCryptoMakeReader(pdf, obj, &ctx, v->value.binary.data, &ivlen);
+      ivlen = v->value.binary.datalen;
+      if ((cb = _pdfioCryptoMakeReader(pdf, obj, &ctx, v->value.binary.data, &ivlen)) == NULL)
+	return (false);
+
       templen = (cb)(&ctx, temp, v->value.binary.data + ivlen, v->value.binary.datalen - ivlen);
 
       // Copy the decrypted string back to the value and adjust the length...

pdfio.h

@@ -1,7 +1,7 @@
 //
 // Public header file for PDFio.
 //
-// Copyright © 2021-2022 by Michael R Sweet.
+// Copyright © 2021-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
@@ -9,27 +9,23 @@
 
 #ifndef PDFIO_H
 #  define PDFIO_H
-
-//
-// Include necessary headers...
-//
-
 #  include <stdio.h>
 #  include <stdlib.h>
 #  include <stdbool.h>
 #  include <sys/types.h>
 #  include <time.h>
-
-
-//
-// C++ magic...
-//
-
 #  ifdef __cplusplus
 extern "C" {
 #  endif // __cplusplus
 
 
+//
+// Version number...
+//
+
+#  define PDFIO_VERSION		"1.2.0"
+
+
 //
 // Visibility and other annotations...
 //
@@ -184,10 +180,12 @@ extern bool		pdfioDictSetStringf(pdfio_dict_t *dict, const char *key, const char
 extern bool		pdfioFileClose(pdfio_file_t *pdf) _PDFIO_PUBLIC;
 extern pdfio_file_t	*pdfioFileCreate(const char *filename, const char *version, pdfio_rect_t *media_box, pdfio_rect_t *crop_box, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
 extern pdfio_obj_t	*pdfioFileCreateArrayObj(pdfio_file_t *pdf, pdfio_array_t *array) _PDFIO_PUBLIC;
+extern pdfio_obj_t	*pdfioFileCreateNumberObj(pdfio_file_t *pdf, double number) _PDFIO_PUBLIC;
 extern pdfio_obj_t	*pdfioFileCreateObj(pdfio_file_t *pdf, pdfio_dict_t *dict) _PDFIO_PUBLIC;
 extern pdfio_file_t	*pdfioFileCreateOutput(pdfio_output_cb_t output_cb, void *output_ctx, const char *version, pdfio_rect_t *media_box, pdfio_rect_t *crop_box, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
 // TODO: Add number, array, string, etc. versions of pdfioFileCreateObject?
 extern pdfio_stream_t	*pdfioFileCreatePage(pdfio_file_t *pdf, pdfio_dict_t *dict) _PDFIO_PUBLIC;
+extern pdfio_obj_t	*pdfioFileCreateStringObj(pdfio_file_t *pdf, const char *s) _PDFIO_PUBLIC;
 extern pdfio_file_t	*pdfioFileCreateTemporary(char *buffer, size_t bufsize, const char *version, pdfio_rect_t *media_box, pdfio_rect_t *crop_box, pdfio_error_cb_t error_cb, void *error_data) _PDFIO_PUBLIC;
 extern pdfio_obj_t	*pdfioFileFindObj(pdfio_file_t *pdf, size_t number) _PDFIO_PUBLIC;
 extern const char	*pdfioFileGetAuthor(pdfio_file_t *pdf) _PDFIO_PUBLIC;
@@ -244,10 +242,6 @@ extern char		*pdfioStringCreate(pdfio_file_t *pdf, const char *s)  _PDFIO_PUBLIC
 extern char		*pdfioStringCreatef(pdfio_file_t *pdf, const char *format, ...) _PDFIO_FORMAT(2,3) _PDFIO_PUBLIC;
 
 
-//
-// C++ magic...
-//
-
 #  ifdef __cplusplus
 }
 #  endif // __cplusplus

pdfio.pc.in

@@ -1,6 +1,13 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
 Name: pdfio
 Description: PDF read/write library
+Version: @PDFIO_VERSION@
 URL: https://www.msweet.org/pdfio
-Requires: zlib >= 1.0
-Libs: -L${prefix}/lib -lpdfio -lm
-Cflags: -I${prefix}/include
+Requires: @PKGCONFIG_REQUIRES@
+Libs: @PKGCONFIG_LIBS@
+Libs.private: @PKGCONFIG_LIBS_PRIVATE@ -lm
+Cflags: @PKGCONFIG_CFLAGS@

pdfio.vcxproj

@@ -87,7 +87,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.1.0";WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -101,7 +101,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.1.0";WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -115,7 +115,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.1.0";_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>
@@ -130,7 +130,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <PreprocessorDefinitions>PDFIO_VERSION="1.1.0";NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
     <Link>

pdfio.xcodeproj/project.pbxproj

@@ -372,7 +372,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1.1;
+				CURRENT_PROJECT_VERSION = 1.1.2;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -381,7 +381,6 @@
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"$(inherited)",
 					"DEBUG=1",
-					"'PDFIO_VERSION=\"$(CURRENT_PROJECT_VERSION)\"'",
 				);
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -397,7 +396,7 @@
 				GCC_WARN_UNUSED_LABEL = YES;
 				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -450,7 +449,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1.1;
+				CURRENT_PROJECT_VERSION = 1.1.2;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_HARDENED_RUNTIME = YES;
 				ENABLE_NS_ASSERTIONS = NO;
@@ -459,7 +458,6 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"$(inherited)",
-					"'PDFIO_VERSION=\"$(CURRENT_PROJECT_VERSION)\"'",
 				);
 				GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -475,7 +473,7 @@
 				GCC_WARN_UNUSED_LABEL = YES;
 				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				RUN_CLANG_STATIC_ANALYZER = YES;
@@ -515,7 +513,7 @@
 				ENABLE_HARDENED_RUNTIME = YES;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				PRODUCT_BUNDLE_IDENTIFIER = org.msweet.testpdfio;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -529,7 +527,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = "";
 				ENABLE_HARDENED_RUNTIME = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MACOSX_DEPLOYMENT_TARGET = 11.0;
 				PRODUCT_BUNDLE_IDENTIFIER = org.msweet.testpdfio;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";

pdfio1.def

@@ -1,5 +1,5 @@
 LIBRARY pdfio1
-VERSION 1.0
+VERSION 1.2
 EXPORTS
 _pdfioArrayDebug
 _pdfioArrayDelete
@@ -47,7 +47,9 @@ _pdfioFileSeek
 _pdfioFileTell
 _pdfioFileWrite
 _pdfioObjDelete
+_pdfioObjGetExtension
 _pdfioObjLoad
+_pdfioObjSetExtension
 _pdfioStreamCreate
 _pdfioStreamOpen
 _pdfioStringIsAllocated
@@ -136,9 +138,12 @@ pdfioContentSetTextXScaling
 pdfioContentStroke
 pdfioContentTextBegin
 pdfioContentTextEnd
+pdfioContentTextMeasure
 pdfioContentTextMoveLine
 pdfioContentTextMoveTo
-pdfioContentTextNextLine
+pdfioContentTextNewLine
+pdfioContentTextNewLineShow
+pdfioContentTextNewLineShowf
 pdfioContentTextShow
 pdfioContentTextShowJustified
 pdfioContentTextShowf
@@ -176,9 +181,11 @@ pdfioFileCreateFontObjFromFile
 pdfioFileCreateICCObjFromFile
 pdfioFileCreateImageObjFromData
 pdfioFileCreateImageObjFromFile
+pdfioFileCreateNumberObj
 pdfioFileCreateObj
 pdfioFileCreateOutput
 pdfioFileCreatePage
+pdfioFileCreateStringObj
 pdfioFileCreateTemporary
 pdfioFileFindObj
 pdfioFileGetAuthor

pdfio_native.nuspec

@@ -3,7 +3,7 @@
     <metadata>
         <id>pdfio_native</id>
         <title>PDFio Library for VS2019+</title>
-        <version>1.1.0</version>
+        <version>1.2.0</version>
         <authors>Michael R Sweet</authors>
         <owners>michaelrsweet</owners>
         <projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
@@ -16,7 +16,7 @@
         <copyright>Copyright © 2019-2023 by Michael R Sweet</copyright>
         <tags>pdf file native</tags>
 	<dependencies>
-	    <dependency id="pdfio_native.redist" version="1.1.0" />
+	    <dependency id="pdfio_native.redist" version="1.2.0" />
 	    <dependency id="zlib_native.redist" version="1.2.11" />
 	</dependencies>
     </metadata>

pdfio_native.redist.nuspec

@@ -3,7 +3,7 @@
     <metadata>
         <id>pdfio_native.redist</id>
         <title>PDFio Library for VS2019+</title>
-        <version>1.1.0</version>
+        <version>1.2.0</version>
         <authors>Michael R Sweet</authors>
         <owners>michaelrsweet</owners>
         <projectUrl>https://github.com/michaelrsweet/pappl</projectUrl>
@@ -15,6 +15,9 @@
         <summary>PDFio is a simple C library for reading and writing PDF files. This package provides the redistributable content for the PDFio library. PDFio is licensed under the Apache License Version 2.0 with an (optional) exception to allow linking against GNU GPL2-only software.</summary>
         <copyright>Copyright © 2019-2023 by Michael R Sweet</copyright>
         <tags>pdf file native</tags>
+	<dependencies>
+	    <dependency id="zlib_native.redist" version="1.2.11" />
+	</dependencies>
     </metadata>
     <files>
         <file src="doc\pdfio-128.png" target="build\native" />

testpdfio.c

@@ -44,7 +44,7 @@ static int	verify_image(pdfio_file_t *pdf, size_t number);
 static int	write_alpha_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font);
 static int	write_color_patch(pdfio_stream_t *st, bool device);
 static int	write_color_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font);
-static int	write_font_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font, bool unicode);
+static int	write_font_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font, const char *textfontfile, bool unicode);
 static int	write_header_footer(pdfio_stream_t *st, const char *title, int number);
 static pdfio_obj_t *write_image_object(pdfio_file_t *pdf, _pdfio_predictor_t predictor);
 static int	write_images_test(pdfio_file_t *pdf, int number, pdfio_obj_t *font);
@@ -406,7 +406,7 @@ do_test_file(const char *filename,	// I - PDF filename
 
       filter = pdfioDictGetName(dict, "Filter");
 
-      if ((st = pdfioObjOpenStream(obj, (filter && !strcmp(filter, "FlateDecode")) ? PDFIO_FILTER_FLATE : PDFIO_FILTER_NONE)) == NULL)
+      if ((st = pdfioObjOpenStream(obj, filter && !strcmp(filter, "FlateDecode"))) == NULL)
       {
         _pdfioValueDebug(&obj->value, stdout);
 	putchar('\n');
@@ -455,7 +455,7 @@ do_test_file(const char *filename,	// I - PDF filename
 	      }
 	    }
 
-	    printf("    Page #%d is %gx%g.\n", (int)n + 1, media_box.x2, media_box.y2);
+	    printf("    Page #%d (obj %d) is %gx%g.\n", (int)n + 1, (int)pdfioObjGetNumber(obj), media_box.x2, media_box.y2);
 	  }
 	}
 
@@ -2229,14 +2229,20 @@ write_color_test(pdfio_file_t *pdf,	// I - PDF file
 //
 
 static int				// O - 1 on failure, 0 on success
-write_font_test(pdfio_file_t *pdf,	// I - PDF file
-                int          number,	// I - Page number
-		pdfio_obj_t  *font,	// I - Page number font
-		bool         unicode)	// I - Use Unicode font?
+write_font_test(
+    pdfio_file_t *pdf,			// I - PDF file
+    int          number,		// I - Page number
+    pdfio_obj_t  *font,			// I - Page number font
+    const char   *textfontfile,		// I - Text font file
+    bool         unicode)		// I - Use Unicode font?
 {
   pdfio_dict_t		*dict;		// Page dictionary
   pdfio_stream_t	*st;		// Page contents stream
-  pdfio_obj_t		*opensans;	// OpenSans-Regular font
+  pdfio_obj_t		*textfont;	// Text font
+  char			title[256],	// Page title
+			textname[256],	// Name of text font
+			*ptr;		// Pointer into name
+  double		width;		// Text width
   int			i;		// Looping var
   static const char * const welcomes[] =// "Welcome" in many languages
   {
@@ -2387,28 +2393,16 @@ write_font_test(pdfio_file_t *pdf,	// I - PDF file
     "Märr-ŋamathirri",
     "Ẹ ku abọ",
     "Kíimak 'oolal",
-    "Ngiyakwemukela"
+    "Ngiyakwemukela",
+    "いらっしゃいませ"
   };
 
 
-#if 0
-  if (unicode)
-  {
-    fputs("pdfioFileCreateFontObjFromFile(NotoSansJP-Regular.otf): ", stdout);
-    if ((opensans = pdfioFileCreateFontObjFromFile(pdf, "testfiles/NotoSansJP-Regular.otf", true)) != NULL)
-      puts("PASS");
-    else
-      return (1);
-  }
+  printf("pdfioFileCreateFontObjFromFile(%s): ", textfontfile);
+  if ((textfont = pdfioFileCreateFontObjFromFile(pdf, textfontfile, unicode)) != NULL)
+    puts("PASS");
   else
-#endif // 0
-  {
-    fputs("pdfioFileCreateFontObjFromFile(OpenSans-Regular.ttf): ", stdout);
-    if ((opensans = pdfioFileCreateFontObjFromFile(pdf, "testfiles/OpenSans-Regular.ttf", unicode)) != NULL)
-      puts("PASS");
-    else
-      return (1);
-  }
+    return (1);
 
   fputs("pdfioDictCreate: ", stdout);
   if ((dict = pdfioDictCreate(pdf)) != NULL)
@@ -2423,7 +2417,7 @@ write_font_test(pdfio_file_t *pdf,	// I - PDF file
     return (1);
 
   fputs("pdfioPageDictAddFont(F2): ", stdout);
-  if (pdfioPageDictAddFont(dict, "F2", opensans))
+  if (pdfioPageDictAddFont(dict, "F2", textfont))
     puts("PASS");
   else
     return (1);
@@ -2435,7 +2429,21 @@ write_font_test(pdfio_file_t *pdf,	// I - PDF file
   else
     return (1);
 
-  if (write_header_footer(st, unicode ? "Unicode TrueType Font Test" : "CP1252 TrueType Font Test", number))
+  if ((ptr = strrchr(textfontfile, '/')) != NULL)
+    strncpy(textname, ptr + 1, sizeof(textname) - 1);
+  else
+    strncpy(textname, textfontfile, sizeof(textname) - 1);
+
+  textname[sizeof(textname) - 1] = '\0';
+  if ((ptr = strrchr(textname, '.')) != NULL)
+    *ptr = '\0';
+
+  if (unicode)
+    snprintf(title, sizeof(title), "Unicode %s Font Test", textname);
+  else
+    snprintf(title, sizeof(title), "CP1252 %s Font Test", textname);
+
+  if (write_header_footer(st, title, number))
     goto error;
 
   fputs("pdfioContentTextBegin(): ", stdout);
@@ -2456,8 +2464,8 @@ write_font_test(pdfio_file_t *pdf,	// I - PDF file
   else
     goto error;
 
-  fputs("pdfioContentTextMoveTo(36.0, 702.0): ", stdout);
-  if (pdfioContentTextMoveTo(st, 36.0, 702.0))
+  fputs("pdfioContentTextMoveTo(198.0, 702.0): ", stdout);
+  if (pdfioContentTextMoveTo(st, 198.0, 702.0))
     puts("PASS");
   else
     return (1);
@@ -2466,18 +2474,36 @@ write_font_test(pdfio_file_t *pdf,	// I - PDF file
   {
     if (i > 0 && (i % 50) == 0)
     {
-      fputs("pdfioContentTextMoveTo(200.0, 600.0): ", stdout);
-      if (pdfioContentTextMoveTo(st, 200.0, 600.0))
+      fputs("pdfioContentTextMoveTo(162.0, 600.0): ", stdout);
+      if (pdfioContentTextMoveTo(st, 162.0, 600.0))
 	puts("PASS");
       else
 	return (1);
     }
 
+    printf("pdfioContentTextMeasure(\"%s\"): ", welcomes[i]);
+    if ((width = pdfioContentTextMeasure(textfont, welcomes[i], 10.0)) >= 0.0)
+      puts("PASS");
+    else
+      return (1);
+
+    printf("pdfioContextTextMoveTo(%g, 0.0): ", -width);
+    if (pdfioContentTextMoveTo(st, -width, 0.0))
+      puts("PASS");
+    else
+      return (1);
+
     printf("pdfioContentTextShowf(\"%s\"): ", welcomes[i]);
     if (pdfioContentTextShowf(st, unicode, "%s\n", welcomes[i]))
       puts("PASS");
     else
       return (1);
+
+    printf("pdfioContextTextMoveTo(%g, 0.0): ", width);
+    if (pdfioContentTextMoveTo(st, width, 0.0))
+      puts("PASS");
+    else
+      return (1);
   }
 
   fputs("pdfioContentTextEnd(): ", stdout);
@@ -3390,14 +3416,17 @@ write_unit_file(
     return (1);
 
   // Test TrueType fonts...
-  if (write_font_test(outpdf, 9, helvetica, false))
+  if (write_font_test(outpdf, 9, helvetica, "testfiles/OpenSans-Regular.ttf", false))
     return (1);
 
-  if (write_font_test(outpdf, 10, helvetica, true))
+  if (write_font_test(outpdf, 10, helvetica, "testfiles/OpenSans-Regular.ttf", true))
+    return (1);
+
+  if (write_font_test(outpdf, 11, helvetica, "testfiles/NotoSansJP-Regular.otf", true))
     return (1);
 
   // Print this text file...
-  if (write_text_test(outpdf, 11, helvetica, "README.md"))
+  if (write_text_test(outpdf, 12, helvetica, "README.md"))
     return (1);
 
   fputs("pdfioFileGetNumPages: ", stdout);

testttf.c

@@ -0,0 +1,304 @@
+//
+// Unit test program for TTF library
+//
+//     https://github.com/michaelrsweet/ttf
+//
+// Copyright © 2018-2023 by Michael R Sweet.
+//
+// Licensed under Apache License v2.0.  See the file "LICENSE" for more
+// information.
+//
+// Usage:
+//
+//   ./testttf [FILENAME]
+//
+
+#include <stdio.h>
+#include "ttf.h"
+
+
+//
+// Local functions...
+//
+
+static void	error_cb(void *data, const char *message);
+static int	test_font(const char *filename);
+
+
+//
+// 'main()' - Main entry for unit tests.
+//
+
+int					// O - Exit status
+main(int  argc,				// I - Number of command-line arguments
+     char *argv[])			// I - Command-line arguments
+{
+  int		i;			// Looping var
+  int		errors = 0;		// Number of errors
+
+
+  if (argc > 1)
+  {
+    for (i = 1; i < argc; i ++)
+      errors += test_font(argv[i]);
+  }
+  else
+  {
+    // Test with the bundled TrueType files...
+    errors += test_font("testfiles/OpenSans-Bold.ttf");
+    errors += test_font("testfiles/OpenSans-Regular.ttf");
+    errors += test_font("testfiles/NotoSansJP-Regular.otf");
+  }
+
+  if (!errors)
+    puts("\nALL TESTS PASSED");
+  else
+    printf("\n%d TEST(S) FAILED\n", errors);
+
+  return (errors);
+}
+
+
+//
+// 'error_cb()' - Error callback.
+//
+
+static void
+error_cb(void       *data,		// I - User data (not used)
+         const char *message)		// I - Message string
+{
+  fprintf(stderr, "FAIL (%s)\n", message);
+}
+
+
+//
+// 'test_font()' - Test a font file.
+//
+
+static int				// O - Number of errors
+test_font(const char *filename)		// I - Font filename
+{
+  int		i,			// Looping var
+		errors = 0;		// Number of errors
+  ttf_t		*font;			// Font
+  const char	*value;			// Font (string) value
+  int		intvalue;		// Font (integer) value
+  float		realvalue;		// Font (real) value
+  ttf_rect_t	bounds;			// Bounds
+  ttf_rect_t	extents;		// Extents
+  size_t	num_fonts;		// Number of fonts
+  ttf_style_t	style;			// Font style
+  ttf_weight_t	weight;			// Font weight
+  static const char * const stretches[] =
+  {					// Font stretch strings
+    "TTF_STRETCH_NORMAL",		// normal
+    "TTF_STRETCH_ULTRA_CONDENSED",	// ultra-condensed
+    "TTF_STRETCH_EXTRA_CONDENSED",	// extra-condensed
+    "TTF_STRETCH_CONDENSED",		// condensed
+    "TTF_STRETCH_SEMI_CONDENSED",	// semi-condensed
+    "TTF_STRETCH_SEMI_EXPANDED",	// semi-expanded
+    "TTF_STRETCH_EXPANDED",		// expanded
+    "TTF_STRETCH_EXTRA_EXPANDED",	// extra-expanded
+    "TTF_STRETCH_ULTRA_EXPANDED"	// ultra-expanded
+  };
+  static const char * const strings[] =	// Test strings
+  {
+    "Hello, World!",			// English
+    "مرحبا بالعالم!",			// Arabic
+    "Bonjour le monde!",		// French
+    "Γειά σου Κόσμε!",			// Greek
+    "שלום עולם!",			// Hebrew
+    "Привет мир!",			// Russian
+    "こんにちは世界！"			// Japanese
+  };
+  static const char * const styles[] =	// Font style names
+  {
+    "TTF_STYLE_NORMAL",
+    "TTF_STYLE_ITALIC",
+    "TTF_STYLE_OBLIQUE"
+  };
+
+
+  printf("ttfCreate(\"%s\"): ", filename);
+  if ((font = ttfCreate(filename, 0, error_cb, NULL)) != NULL)
+    puts("PASS");
+  else
+    errors ++;
+
+  fputs("ttfGetAscent: ", stdout);
+  if ((intvalue = ttfGetAscent(font)) > 0)
+  {
+    printf("PASS (%d)\n", intvalue);
+  }
+  else
+  {
+    printf("FAIL (%d)\n", intvalue);
+    errors ++;
+  }
+
+  fputs("ttfGetBounds: ", stdout);
+  if (ttfGetBounds(font, &bounds))
+  {
+    printf("PASS (%g %g %g %g)\n", bounds.left, bounds.bottom, bounds.right, bounds.top);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetCapHeight: ", stdout);
+  if ((intvalue = ttfGetCapHeight(font)) > 0)
+  {
+    printf("PASS (%d)\n", intvalue);
+  }
+  else
+  {
+    printf("FAIL (%d)\n", intvalue);
+    errors ++;
+  }
+
+  fputs("ttfGetCopyright: ", stdout);
+  if ((value = ttfGetCopyright(font)) != NULL)
+  {
+    printf("PASS (%s)\n", value);
+  }
+  else
+  {
+    puts("WARNING (no copyright found)");
+  }
+
+  for (i = 0; i < (int)(sizeof(strings) / sizeof(strings[0])); i ++)
+  {
+    printf("ttfGetExtents(\"%s\"): ", strings[i]);
+    if (ttfGetExtents(font, 12.0f, strings[i], &extents))
+    {
+      printf("PASS (%.1f %.1f %.1f %.1f)\n", extents.left, extents.bottom, extents.right, extents.top);
+    }
+    else
+    {
+      puts("FAIL");
+      errors ++;
+    }
+  }
+
+  fputs("ttfGetFamily: ", stdout);
+  if ((value = ttfGetFamily(font)) != NULL)
+  {
+    printf("PASS (%s)\n", value);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetItalicAngle: ", stdout);
+  if ((realvalue = ttfGetItalicAngle(font)) >= -180.0 && realvalue <= 180.0)
+  {
+    printf("PASS (%g)\n", realvalue);
+  }
+  else
+  {
+    printf("FAIL (%g)\n", realvalue);
+    errors ++;
+  }
+
+  fputs("ttfGetNumFonts: ", stdout);
+  if ((num_fonts = ttfGetNumFonts(font)) > 0)
+  {
+    printf("PASS (%u)\n", (unsigned)num_fonts);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetPostScriptName: ", stdout);
+  if ((value = ttfGetPostScriptName(font)) != NULL)
+  {
+    printf("PASS (%s)\n", value);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetStretch: ", stdout);
+  if ((intvalue = (int)ttfGetStretch(font)) >= TTF_STRETCH_NORMAL && intvalue <= TTF_STRETCH_ULTRA_EXPANDED)
+  {
+    printf("PASS (%s)\n", stretches[intvalue]);
+  }
+  else
+  {
+    printf("FAIL (%d)\n", intvalue);
+    errors ++;
+  }
+
+  fputs("ttfGetStyle: ", stdout);
+  if ((style = ttfGetStyle(font)) >= TTF_STYLE_NORMAL && style <= TTF_STYLE_ITALIC)
+  {
+    printf("PASS (%s)\n", styles[style]);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetVersion: ", stdout);
+  if ((value = ttfGetVersion(font)) != NULL)
+  {
+    printf("PASS (%s)\n", value);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetWeight: ", stdout);
+  if ((weight = ttfGetWeight(font)) >= 0)
+  {
+    printf("PASS (%u)\n", (unsigned)weight);
+  }
+  else
+  {
+    puts("FAIL");
+    errors ++;
+  }
+
+  fputs("ttfGetWidth(' '): ", stdout);
+  if ((intvalue = ttfGetWidth(font, ' ')) > 0)
+  {
+    printf("PASS (%d)\n", intvalue);
+  }
+  else
+  {
+    printf("FAIL (%d)\n", intvalue);
+    errors ++;
+  }
+
+  fputs("ttfGetXHeight: ", stdout);
+  if ((intvalue = ttfGetXHeight(font)) > 0)
+  {
+    printf("PASS (%d)\n", intvalue);
+  }
+  else
+  {
+    printf("FAIL (%d)\n", intvalue);
+    errors ++;
+  }
+
+  fputs("ttfIsFixedPitch: ", stdout);
+  if (ttfIsFixedPitch(font))
+    puts("PASS (true)");
+  else
+    puts("PASS (false)");
+
+  ttfDelete(font);
+
+  return (errors);
+}

ttf.c

@@ -3,16 +3,12 @@
 //
 //     https://github.com/michaelrsweet/ttf
 //
-// Copyright © 2018-2021 by Michael R Sweet.
+// Copyright © 2018-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
 //
 
-//
-// Include necessary headers...
-//
-
 #ifdef _WIN32
 #  define _CRT_SECURE_NO_WARNINGS
 #endif // _WIN32
@@ -75,7 +71,7 @@ typedef __int64 ssize_t;		// POSIX type not present on Windows...
 
 
 //
-// DEBUG is typically defined for debug builds.  TTF_DEBUG maps to printf when
+// DEBUG is typically defined for debug builds.  TTF_DEBUG maps to fprintf when
 // DEBUG is defined and is a no-op otherwise...
 //
 
@@ -452,7 +448,7 @@ ttfCreate(const char   *filename,	// I - Filename
     font->cap_height = font->ascent;
 
   if (font->x_height == 0)
-    font->x_height   = 3 * font->ascent / 5;
+    font->x_height = 3 * font->ascent / 5;
 
   // Build a sparse glyph widths table...
   font->min_char = -1;
@@ -481,6 +477,11 @@ ttfCreate(const char   *filename,	// I - Filename
       else
 	font->widths[bin][i & 255] = widths[glyph];
     }
+
+#ifdef DEBUG
+    if (i >= ' ' && i < 127 && font->widths[0])
+      TTF_DEBUG("ttfCreate: width['%c']=%d(%d)\n", (char)i, font->widths[0][i].width, font->widths[0][i].left_bearing);
+#endif // DEBUG
   }
 
   // Cleanup and return the font...
@@ -737,17 +738,6 @@ ttfGetFamily(ttf_t *font)		// I - Font
 }
 
 
-//
-// 'ttfIsFixedPitch()' - Determine whether a font is fixedpitch.
-//
-
-bool					// O - `true` if fixed pitch, `false` otherwise
-ttfIsFixedPitch(ttf_t *font)		// I - Font
-{
-  return (font ? font->is_fixed : false);
-}
-
-
 //
 // 'ttfGetItalicAngle()' - Get the italic angle.
 //
@@ -856,13 +846,14 @@ int					// O - Width in 1000ths
 ttfGetWidth(ttf_t *font,		// I - Font
             int   ch)			// I - Unicode character
 {
-  int	bin = ch >> 8;			// Bin in widths array
+  int	bin =  ch >> 8;			// Bin in widths array
 
 
   // Range check input...
   if (!font || ch < ' ' || ch == 0x7f)
     return (0);
-  else if (font->widths[bin])
+
+  if (font->widths[bin])
     return ((int)(1000.0f * font->widths[bin][ch & 255].width / font->units));
   else if (font->widths[0])		// .notdef
     return ((int)(1000.0f * font->widths[0][0].width / font->units));
@@ -882,6 +873,17 @@ ttfGetXHeight(ttf_t *font)		// I - Font
 }
 
 
+//
+// 'ttfIsFixedPitch()' - Determine whether a font is fixedpitch.
+//
+
+bool					// O - `true` if fixed pitch, `false` otherwise
+ttfIsFixedPitch(ttf_t *font)		// I - Font
+{
+  return (font ? font->is_fixed : false);
+}
+
+
 //
 // 'copy_name()' - Copy a name string from a font.
 //
@@ -1280,7 +1282,7 @@ read_cmap(ttf_t *font)			// I - Font
 
           // Based on the end code of the segent table, allocate space for the
           // uncompressed cmap table...
-          segCount --;			// Last segment is not used (sigh)
+//          segCount --;			// Last segment is not used (sigh)
 
 	  font->num_cmap = segments[segCount - 1].endCode + 1;
 	  font->cmap     = cmapptr = (int *)malloc(font->num_cmap * sizeof(int));
@@ -1305,17 +1307,18 @@ read_cmap(ttf_t *font)			// I - Font
               {
                 // Use an "obscure indexing trick" (words from the spec, not
                 // mine) to look up the glyph index...
-                temp = segment->idRangeOffset / 2 + ch - segment->startCode + seg - segCount - 1;
+                temp = segment->idRangeOffset / 2 - segCount + (ch - segment->startCode) + (segment - segments);
 
-                if (temp < 0 || temp >= numGlyphIdArray || !glyphIdArray[temp])
+                TTF_DEBUG("read_cmap: ch=%d, temp=%d\n", ch, temp);
+                if (temp < 0 || temp >= numGlyphIdArray)
                   glyph = -1;
 		else
-		  glyph = ((glyphIdArray[temp] + segment->idDelta) & 65535) - 1;
+		  glyph = (glyphIdArray[temp] + segment->idDelta) & 65535;
               }
               else
               {
                 // Just use idDelta to compute a glyph index...
-                glyph = ((ch + segment->idDelta) & 65535) - 1;
+                glyph = (ch + segment->idDelta) & 65535;
 	      }
 
 	      cmapptr[ch] = glyph;
@@ -1582,6 +1585,8 @@ read_hmtx(ttf_t           *font,	// I - Font
   {
     widths[i].width        = (short)read_ushort(font);
     widths[i].left_bearing = (short)read_short(font);
+
+    TTF_DEBUG("read_hmtx: widths[%d].width=%d, .left_bearing=%d\n", i, widths[i].width, widths[i].left_bearing);
   }
 
   return (widths);

ttf.h

@@ -3,7 +3,7 @@
 //
 //     https://github.com/michaelrsweet/ttf
 //
-// Copyright © 2018-2021 by Michael R Sweet.
+// Copyright © 2018-2023 by Michael R Sweet.
 //
 // Licensed under Apache License v2.0.  See the file "LICENSE" for more
 // information.
@@ -11,17 +11,11 @@
 
 #ifndef TTF_H
 #  define TTF_H
-
-//
-// Include necessary headers...
-//
-
 #  include <stdbool.h>
 #  include <sys/types.h>
-
 #  ifdef __cplusplus
 extern "C" {
-#  endif //
+#  endif // __cplusplus
 
 
 //
@@ -89,8 +83,8 @@ extern ttf_t		*ttfCreate(const char *filename, size_t idx, ttf_err_cb_t err_cb,
 extern void		ttfDelete(ttf_t *font);
 extern int		ttfGetAscent(ttf_t *font);
 extern ttf_rect_t	*ttfGetBounds(ttf_t *font, ttf_rect_t *bounds);
-extern int		ttfGetCapHeight(ttf_t *font);
 extern const int	*ttfGetCMap(ttf_t *font, size_t *num_cmap);
+extern int		ttfGetCapHeight(ttf_t *font);
 extern const char	*ttfGetCopyright(ttf_t *font);
 extern int		ttfGetDescent(ttf_t *font);
 extern ttf_rect_t	*ttfGetExtents(ttf_t *font, float size, const char *s, ttf_rect_t *extents);
@@ -112,5 +106,4 @@ extern bool		ttfIsFixedPitch(ttf_t *font);
 #  ifdef __cplusplus
 }
 #  endif // __cplusplus
-
 #endif // !TTF_H