Merge latest trunk changes with this branch.

FossilOrigin-Name: 2719cf5c5bbe8e31d18368d54d968af3878ad2e15f0666e18d7b567d7439c451
2025-07-30 19:03:16 +03:00 · 2017-10-11 20:26:07 +00:00
parent 7fdb9a7edc ff0a67a1a7
commit 518e3f0673
399 changed files with 56477 additions and 4892 deletions
--- a/Makefile.in
+++ b/Makefile.in
@ -181,7 +181,7 @@ LIBOBJS0 = alter.lo analyze.lo attach.lo auth.lo \
         notify.lo opcodes.lo os.lo os_unix.lo os_win.lo \
         pager.lo parse.lo pcache.lo pcache1.lo pragma.lo prepare.lo printf.lo \
         random.lo resolve.lo rowset.lo rtree.lo \
-         sqlite3session.lo select.lo sqlite3rbu.lo status.lo \
+         sqlite3session.lo select.lo sqlite3rbu.lo status.lo stmt.lo \
         table.lo threads.lo tokenize.lo treeview.lo trigger.lo \
         update.lo util.lo vacuum.lo \
         vdbe.lo vdbeapi.lo vdbeaux.lo vdbeblob.lo vdbemem.lo vdbesort.lo \
@ -350,7 +350,8 @@ SRC += \
  $(TOP)/ext/rbu/sqlite3rbu.h \
  $(TOP)/ext/rbu/sqlite3rbu.c
 SRC += \
-  $(TOP)/ext/misc/json1.c
+  $(TOP)/ext/misc/json1.c \
+  $(TOP)/ext/misc/stmt.c

 # Generated source code files
 #
@ -429,6 +430,7 @@ TESTSRC += \
  $(TOP)/ext/fts5/fts5_test_mi.c \
  $(TOP)/ext/fts5/fts5_test_tok.c \
  $(TOP)/ext/misc/ieee754.c \
+  $(TOP)/ext/misc/mmapwarm.c \
  $(TOP)/ext/misc/nextchar.c \
  $(TOP)/ext/misc/percentile.c \
  $(TOP)/ext/misc/regexp.c \
@ -436,6 +438,7 @@ TESTSRC += \
  $(TOP)/ext/misc/series.c \
  $(TOP)/ext/misc/spellfix.c \
  $(TOP)/ext/misc/totype.c \
+  $(TOP)/ext/misc/unionvtab.c \
  $(TOP)/ext/misc/wholenumber.c

 # Source code to the library files needed by the test fixture
@ -485,7 +488,8 @@ TESTSRC2 = \
  $(TOP)/ext/fts3/fts3_tokenizer.c \
  $(TOP)/ext/fts3/fts3_write.c \
  $(TOP)/ext/async/sqlite3async.c \
-  $(TOP)/ext/session/sqlite3session.c 
+  $(TOP)/ext/session/sqlite3session.c \
+  $(TOP)/ext/misc/stmt.c 

 # Header files used by all library source files.
 #
@ -566,6 +570,7 @@ SHELL_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4
 # SHELL_OPT += -DSQLITE_ENABLE_FTS5
 SHELL_OPT += -DSQLITE_ENABLE_EXPLAIN_COMMENTS
 SHELL_OPT += -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION
+SHELL_OPT += -DSQLITE_ENABLE_STMTVTAB
 FUZZERSHELL_OPT = -DSQLITE_ENABLE_JSON1
 FUZZCHECK_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_MEMSYS5 -DSQLITE_OSS_FUZZ
 FUZZCHECK_OPT += -DSQLITE_MAX_MEMORY=50000000
@ -691,6 +696,11 @@ lemon$(BEXE):	$(TOP)/tool/lemon.c $(TOP)/tool/lempar.c
 	$(BCC) -o $@ $(TOP)/tool/lemon.c
 	cp $(TOP)/tool/lempar.c .

+# Rules to build the program that generates the source-id
+#
+mksourceid$(BEXE):	$(TOP)/tool/mksourceid.c
+	$(BCC) -o $@ $(TOP)/tool/mksourceid.c
+
 # Rules to build individual *.o files from generated *.c files. This
 # applies to:
 #
@ -956,7 +966,7 @@ parse.c:	$(TOP)/src/parse.y lemon$(BEXE) $(TOP)/tool/addopcodes.tcl
 	mv parse.h parse.h.temp
 	$(TCLSH_CMD) $(TOP)/tool/addopcodes.tcl parse.h.temp >parse.h

-sqlite3.h:	$(TOP)/src/sqlite.h.in $(TOP)/manifest.uuid $(TOP)/VERSION
+sqlite3.h:	$(TOP)/src/sqlite.h.in $(TOP)/manifest mksourceid$(BEXE) $(TOP)/VERSION
 	$(TCLSH_CMD) $(TOP)/tool/mksqlite3h.tcl $(TOP) >sqlite3.h

 keywordhash.h:	$(TOP)/tool/mkkeywordhash.c
@ -1036,6 +1046,9 @@ sqlite3session.lo:	$(TOP)/ext/session/sqlite3session.c $(HDR) $(EXTHDR)
 json1.lo:	$(TOP)/ext/misc/json1.c
 	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/misc/json1.c

+stmt.lo:	$(TOP)/ext/misc/stmt.c
+	$(LTCOMPILE) -DSQLITE_CORE -c $(TOP)/ext/misc/stmt.c
+
 # FTS5 things
 #
 FTS5_SRC = \
@ -1085,6 +1098,7 @@ TESTFIXTURE_FLAGS += -DSQLITE_SERVER=1 -DSQLITE_PRIVATE="" -DSQLITE_CORE
 TESTFIXTURE_FLAGS += -DBUILD_sqlite
 TESTFIXTURE_FLAGS += -DSQLITE_SERIES_CONSTRAINT_VERIFY=1
 TESTFIXTURE_FLAGS += -DSQLITE_DEFAULT_PAGE_SIZE=1024
+TESTFIXTURE_FLAGS += -DSQLITE_ENABLE_STMTVTAB

 TESTFIXTURE_SRC0 = $(TESTSRC2) libsqlite3.la
 TESTFIXTURE_SRC1 = sqlite3.c
--- a/Makefile.msc
+++ b/Makefile.msc
@ -1294,7 +1294,8 @@ SRC07 = \
  $(TOP)\ext\rtree\rtree.c \
  $(TOP)\ext\session\sqlite3session.c \
  $(TOP)\ext\rbu\sqlite3rbu.c \
-  $(TOP)\ext\misc\json1.c
+  $(TOP)\ext\misc\json1.c \
+  $(TOP)\ext\misc\stmt.c

 # Extension header files, part 1.
 #
@ -1412,6 +1413,7 @@ TESTEXT = \
  $(TOP)\ext\fts5\fts5_test_mi.c \
  $(TOP)\ext\fts5\fts5_test_tok.c \
  $(TOP)\ext\misc\ieee754.c \
+  $(TOP)\ext\misc\mmapwarm.c \
  $(TOP)\ext\misc\nextchar.c \
  $(TOP)\ext\misc\percentile.c \
  $(TOP)\ext\misc\regexp.c \
@ -1419,6 +1421,7 @@ TESTEXT = \
  $(TOP)\ext\misc\series.c \
  $(TOP)\ext\misc\spellfix.c \
  $(TOP)\ext\misc\totype.c \
+  $(TOP)\ext\misc\unionvtab.c \
  $(TOP)\ext\misc\wholenumber.c

 # Source code to the library files needed by the test fixture
@ -1507,7 +1510,7 @@ FUZZDATA = \
 # when the shell is not being dynamically linked.
 #
 !IF $(DYNAMIC_SHELL)==0 && $(FOR_WIN10)==0
-SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_SHELL_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS
+SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_SHELL_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS -DSQLITE_ENABLE_STMTVTAB
 !ENDIF

 # <<mark>>
@ -1670,6 +1673,12 @@ lemon.exe:	$(TOP)\tool\lemon.c lempar.c
 	$(BCC) $(NO_WARN) -Daccess=_access \
 		-Fe$@ $(TOP)\tool\lemon.c /link $(LDFLAGS) $(NLTLINKOPTS) $(NLTLIBPATHS)

+# <<mark>>
+# Rules to build the source-id generator tool
+#
+mksourceid.exe:	$(TOP)\tool\mksourceid.c
+	$(BCC) $(NO_WARN) -Fe$@ $(TOP)\tool\mksourceid.c /link $(LDFLAGS) $(NLTLINKOPTS) $(NLTLIBPATHS)
+
 # Rules to build individual *.lo files from generated *.c files. This
 # applies to:
 #
@ -1948,7 +1957,7 @@ parse.c:	$(TOP)\src\parse.y lemon.exe $(TOP)\tool\addopcodes.tcl
 	move parse.h parse.h.temp
 	$(TCLSH_CMD) $(TOP)\tool\addopcodes.tcl parse.h.temp > parse.h

-$(SQLITE3H):	$(TOP)\src\sqlite.h.in $(TOP)\manifest.uuid $(TOP)\VERSION
+$(SQLITE3H):	$(TOP)\src\sqlite.h.in $(TOP)\manifest mksourceid.exe $(TOP)\VERSION
 	$(TCLSH_CMD) $(TOP)\tool\mksqlite3h.tcl $(TOP:\=/) > $(SQLITE3H) $(MKSQLITE3H_ARGS)

 sqlite3ext.h:	.target_source
@ -2091,6 +2100,7 @@ TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERVER=1 -DSQLITE_PRIVATE=""
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_CORE $(NO_WARN)
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_SERIES_CONSTRAINT_VERIFY=1
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_DEFAULT_PAGE_SIZE=1024
+TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) -DSQLITE_ENABLE_STMTVTAB
 TESTFIXTURE_FLAGS = $(TESTFIXTURE_FLAGS) $(TEST_CCONV_OPTS)

 TESTFIXTURE_SRC0 = $(TESTEXT) $(TESTSRC2)
@ -2247,6 +2257,9 @@ rbu.exe:	$(TOP)\ext\rbu\rbu.c $(TOP)\ext\rbu\sqlite3rbu.c $(SQLITE3C) $(SQLITE3H
 	$(LTLINK) $(NO_WARN) -DSQLITE_ENABLE_RBU \
 		$(TOP)\ext\rbu\rbu.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS)

+LSMDIR=$(TOP)\ext\lsm1
+!INCLUDE $(LSMDIR)\Makefile.msc
+
 moreclean:	clean
 	del /Q $(SQLITE3C) $(SQLITE3H) 2>NUL
 # <</mark>>
@ -2259,13 +2272,14 @@ clean:
 	del /Q sqlite3.c sqlite3.h 2>NUL
 	del /Q opcodes.c opcodes.h 2>NUL
 	del /Q lemon.* lempar.c parse.* 2>NUL
-	del /Q mkkeywordhash.* keywordhash.h 2>NUL
+	del /Q mksourceid.* mkkeywordhash.* keywordhash.h 2>NUL
 	del /Q notasharedlib.* 2>NUL
 	-rmdir /Q/S .deps 2>NUL
 	-rmdir /Q/S .libs 2>NUL
 	-rmdir /Q/S tsrc 2>NUL
 	del /Q .target_source 2>NUL
 	del /Q tclsqlite3.exe $(SQLITETCLH) $(SQLITETCLDECLSH) 2>NUL
+	del /Q lsm.dll lsmtest.exe 2>NUL
 	del /Q testloadext.dll 2>NUL
 	del /Q testfixture.exe test.db 2>NUL
 	del /Q LogEst.exe fts3view.exe rollback-test.exe showdb.exe dbdump.exe 2>NUL
--- a/README.md
+++ b/README.md
@ -34,7 +34,9 @@ archives as follows:
 If you do want to use Fossil to check out the source tree, 
 first install Fossil version 2.0 or later.
 (Source tarballs and precompiled binaries available
-[here](https://www.fossil-scm.org/fossil/uv/download.html).)
+[here](https://www.fossil-scm.org/fossil/uv/download.html).  Fossil is
+a stand-alone program.  To install, simply download or build the single 
+executable file and put that file someplace on your $PATH.)
 Then run commands like this:

        mkdir ~/sqlite
@ -106,19 +108,22 @@ The makefiles also require AWK.

 ## Source Code Tour

-Most of the core source files are in the **src/** subdirectory.  But
-src/ also contains files used to build the "testfixture" test harness;
-those file all begin with "test".  And src/ contains the "shell.c" file
-which is the main program for the "sqlite3.exe" command-line shell and
-the "tclsqlite.c" file which implements the bindings to SQLite from the
-Tcl programming language.  (Historical note:  SQLite began as a Tcl
+Most of the core source files are in the **src/** subdirectory.  The
+**src/** folder also contains files used to build the "testfixture" test
+harness. The names of the source files used by "testfixture" all begin
+with "test".
+The **src/** also contains the "shell.c" file
+which is the main program for the "sqlite3.exe"
+[command-line shell](https://sqlite.org/cli.html) and
+the "tclsqlite.c" file which implements the
+[TCL bindings](https://sqlite.org/tclsqlite.html) for SQLite.
+(Historical note:  SQLite began as a Tcl
 extension and only later escaped to the wild as an independent library.)

 Test scripts and programs are found in the **test/** subdirectory.
-There are other test suites for SQLite (see
-[How SQLite Is Tested](http://www.sqlite.org/testing.html))
-but those other test suites are
-in separate source repositories.
+Addtional test code is found in other source repositories.
+See [How SQLite Is Tested](http://www.sqlite.org/testing.html) for
+additional information.

 The **ext/** subdirectory contains code for extensions.  The
 Full-text search engine is in **ext/fts3**.  The R-Tree engine is in
@ -142,7 +147,7 @@ manually-edited files and automatically-generated files.
 The SQLite interface is defined by the **sqlite3.h** header file, which is
 generated from src/sqlite.h.in, ./manifest.uuid, and ./VERSION.  The
 [Tcl script](http://www.tcl.tk) at tool/mksqlite3h.tcl does the conversion.
-The manifest.uuid file contains the SHA1 hash of the particular check-in
+The manifest.uuid file contains the SHA3 hash of the particular check-in
 and is used to generate the SQLITE\_SOURCE\_ID macro.  The VERSION file
 contains the current SQLite version number.  The sqlite3.h header is really
 just a copy of src/sqlite.h.in with the source-id and version number inserted
@ -153,9 +158,8 @@ used to generate that documentation are in a separate source repository.
 The SQL language parser is **parse.c** which is generate from a grammar in
 the src/parse.y file.  The conversion of "parse.y" into "parse.c" is done
 by the [lemon](./doc/lemon.html) LALR(1) parser generator.  The source code
-for lemon is at tool/lemon.c.  Lemon uses a
-template for generating its parser.  A generic template is in tool/lempar.c,
-but SQLite uses a slightly modified template found in src/lempar.c.
+for lemon is at tool/lemon.c.  Lemon uses the tool/lempar.c file as a
+template for generating its parser.

 Lemon also generates the **parse.h** header file, at the same time it
 generates parse.c. But the parse.h header file is
@ -175,6 +179,13 @@ that maps SQL language keywords (ex: "CREATE", "SELECT", "INDEX", etc.) into
 the numeric codes used by the parse.c parser.  The keywordhash.h file is
 generated by a C-language program at tool mkkeywordhash.c.

+The **pragma.h** header file contains various definitions used to parse
+and implement the PRAGMA statements.  The header is generated by a
+script **tool/mkpragmatab.tcl**. If you want to add a new PRAGMA, edit
+the **tool/mkpragmatab.tcl** file to insert the information needed by the
+parser for your new PRAGMA, then run the script to regenerate the
+**pragma.h** header file.
+
 ### The Amalgamation

 All of the individual C source code and header files (both manually-edited
@ -192,7 +203,7 @@ subdirectory (using the equivalent of "make target_source") then the
 tool/mksqlite3c.tcl script is run to copy them all together in just the
 right order while resolving internal "#include" references.

-The amalgamation source file is more than 100K lines long.  Some symbolic
+The amalgamation source file is more than 200K lines long.  Some symbolic
 debuggers (most notably MSVC) are unable to deal with files longer than 64K
 lines.  To work around this, a separate Tcl script, tool/split-sqlite3c.tcl,
 can be run on the amalgamation to break it up into a single small C file
@ -209,14 +220,15 @@ See the [architectural description](http://www.sqlite.org/arch.html)
 for details. Other documents that are useful in
 (helping to understand how SQLite works include the
 [file format](http://www.sqlite.org/fileformat2.html) description,
-the [virtual machine](http://www.sqlite.org/vdbe.html) that runs
+the [virtual machine](http://www.sqlite.org/opcode.html) that runs
 prepared statements, the description of
 [how transactions work](http://www.sqlite.org/atomiccommit.html), and
 the [overview of the query planner](http://www.sqlite.org/optoverview.html).

-Unfortunately, years of effort have gone into optimizating SQLite, both
+Years of effort have gone into optimizating SQLite, both
 for small size and high performance.  And optimizations tend to result in
-complex code.  So there is a lot of complexity in the SQLite implementation.
+complex code.  So there is a lot of complexity in the current SQLite
+implementation.  It will not be the easiest library in the world to hack.

 Key files:

@ -227,7 +239,7 @@ Key files:
  *  **sqliteInt.h** - this header file defines many of the data objects
     used internally by SQLite.

-  *  **parse.y** - This file describes the LALR(1) grammer that SQLite uses
+  *  **parse.y** - This file describes the LALR(1) grammar that SQLite uses
     to parse SQL statements, and the actions that are taken at each step
     in the parsing process.

@ -260,13 +272,13 @@ Key files:
     is not part of the core SQLite library.  But as most of the tests in this
     repository are written in Tcl, the Tcl language bindings are important.

-There are many other source files.  Each has a suscinct header comment that
+There are many other source files.  Each has a succinct header comment that
 describes its purpose and role within the larger system.


 ## Contacts

 The main SQLite webpage is [http://www.sqlite.org/](http://www.sqlite.org/)
-with geographically distributed backup servers at
+with geographically distributed backups at
 [http://www2.sqlite.org/](http://www2.sqlite.org) and
 [http://www3.sqlite.org/](http://www3.sqlite.org).
--- a/2
+++ b/2
@ -1 +1 @@
-3.19.0
+3.21.0
--- a/autoconf/Makefile.msc
+++ b/autoconf/Makefile.msc
@ -927,7 +927,7 @@ LIBRESOBJS =
 # when the shell is not being dynamically linked.
 #
 !IF $(DYNAMIC_SHELL)==0 && $(FOR_WIN10)==0
-SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_SHELL_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS
+SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_SHELL_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS -DSQLITE_ENABLE_STMTVTAB
 !ENDIF


--- a/84
+++ b/84
@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for sqlite 3.19.0.
+# Generated by GNU Autoconf 2.69 for sqlite 3.21.0.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@ -726,8 +726,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='sqlite'
 PACKAGE_TARNAME='sqlite'
-PACKAGE_VERSION='3.19.0'
-PACKAGE_STRING='sqlite 3.19.0'
+PACKAGE_VERSION='3.21.0'
+PACKAGE_STRING='sqlite 3.21.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''

@ -909,6 +909,7 @@ enable_fts3
 enable_fts4
 enable_fts5
 enable_json1
+enable_update_limit
 enable_rtree
 enable_session
 enable_gcov
@ -1463,7 +1464,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-\`configure' configures sqlite 3.19.0 to adapt to many kinds of systems.
+\`configure' configures sqlite 3.21.0 to adapt to many kinds of systems.

 Usage: $0 [OPTION]... [VAR=VALUE]...

@ -1528,7 +1529,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of sqlite 3.19.0:";;
+     short | recursive ) echo "Configuration of sqlite 3.21.0:";;
   esac
  cat <<\_ACEOF

@ -1560,6 +1561,7 @@ Optional Features:
  --enable-fts4           Enable the FTS4 extension
  --enable-fts5           Enable the FTS5 extension
  --enable-json1          Enable the JSON1 extension
+  --enable-update-limit   Enable the UPDATE/DELETE LIMIT clause
  --enable-rtree          Enable the RTREE extension
  --enable-session        Enable the SESSION extension
  --enable-gcov           Enable coverage testing using gcov
@ -1652,7 +1654,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-sqlite configure 3.19.0
+sqlite configure 3.21.0
 generated by GNU Autoconf 2.69

 Copyright (C) 2012 Free Software Foundation, Inc.
@ -2071,7 +2073,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by sqlite $as_me 3.19.0, which was
+It was created by sqlite $as_me 3.21.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@
@ -3929,13 +3931,13 @@ if ${lt_cv_nm_interface+:} false; then :
 else
  lt_cv_nm_interface="BSD nm"
  echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:3932: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:3934: $ac_compile\"" >&5)
  (eval "$ac_compile" 2>conftest.err)
  cat conftest.err >&5
-  (eval echo "\"\$as_me:3935: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:3937: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
  cat conftest.err >&5
-  (eval echo "\"\$as_me:3938: output\"" >&5)
+  (eval echo "\"\$as_me:3940: output\"" >&5)
  cat conftest.out >&5
  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
    lt_cv_nm_interface="MS dumpbin"
@ -5141,7 +5143,7 @@ ia64-*-hpux*)
  ;;
 *-*-irix6*)
  # Find out which ABI we are using.
-  echo '#line 5144 "configure"' > conftest.$ac_ext
+  echo '#line 5146 "configure"' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
@ -6666,11 +6668,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6669: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6671: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:6673: \$? = $ac_status" >&5
+   echo "$as_me:6675: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@ -7005,11 +7007,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7008: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7010: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
-   echo "$as_me:7012: \$? = $ac_status" >&5
+   echo "$as_me:7014: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
@ -7110,11 +7112,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7113: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7115: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:7117: \$? = $ac_status" >&5
+   echo "$as_me:7119: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@ -7165,11 +7167,11 @@ else
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7168: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7170: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
-   echo "$as_me:7172: \$? = $ac_status" >&5
+   echo "$as_me:7174: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
@ -9545,7 +9547,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
-#line 9548 "configure"
+#line 9550 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@ -9641,7 +9643,7 @@ else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
-#line 9644 "configure"
+#line 9646 "configure"
 #include "confdefs.h"

 #if HAVE_DLFCN_H
@ -10302,7 +10304,7 @@ USE_AMALGAMATION=1
 # if not, then we fall back to plain tclsh.
 # TODO: try other versions before falling back?
 #
-for ac_prog in tclsh8.6 tclsh8.5 tclsh
+for ac_prog in tclsh8.7 tclsh8.6 tclsh8.5 tclsh
 do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@ -11356,7 +11358,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to support MEMSYS5" >&5
 $as_echo_n "checking whether to support MEMSYS5... " >&6; }
 if test "${enable_memsys5}" = "yes"; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_MEMSYS5"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS5"
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
@ -11373,7 +11375,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to support MEMSYS3" >&5
 $as_echo_n "checking whether to support MEMSYS3... " >&6; }
 if test "${enable_memsys3}" = "yes" -a "${enable_memsys5}" = "no"; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_MEMSYS3"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS3"
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 else
@ -11391,7 +11393,7 @@ else
 fi

 if test "${enable_fts3}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS3"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS3"
 fi
 # Check whether --enable-fts4 was given.
 if test "${enable_fts4+set}" = set; then :
@ -11401,7 +11403,7 @@ else
 fi

 if test "${enable_fts4}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS4"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS4"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing log" >&5
 $as_echo_n "checking for library containing log... " >&6; }
 if ${ac_cv_search_log+:} false; then :
@ -11467,7 +11469,7 @@ else
 fi

 if test "${enable_fts5}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS5"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing log" >&5
 $as_echo_n "checking for library containing log... " >&6; }
 if ${ac_cv_search_log+:} false; then :
@ -11536,7 +11538,21 @@ else
 fi

 if test "${enable_json1}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_JSON1"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_JSON1"
+fi
+
+#########
+# See whether we should enable the LIMIT clause on UPDATE and DELETE
+# statements.
+# Check whether --enable-update-limit was given.
+if test "${enable_update_limit+set}" = set; then :
+  enableval=$enable_update_limit; enable_udlimit=yes
+else
+  enable_udlimit=no
+fi
+
+if test "${enable_udlimit}" = "yes" ; then
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT"
 fi

 #########
@ -11549,7 +11565,7 @@ else
 fi

 if test "${enable_rtree}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_RTREE"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_RTREE"
 fi

 #########
@ -11562,12 +11578,12 @@ else
 fi

 if test "${enable_session}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_SESSION"
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_PREUPDATE_HOOK"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_SESSION"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_PREUPDATE_HOOK"
 fi

 #########
-# attempt to duplicate any OMITS and ENABLES into the $(OPT_FEATURE_FLAGS) parameter
+# attempt to duplicate any OMITS and ENABLES into the ${OPT_FEATURE_FLAGS} parameter
 for option in $CFLAGS $CPPFLAGS
 do
  case $option in
@ -12151,7 +12167,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by sqlite $as_me 3.19.0, which was
+This file was extended by sqlite $as_me 3.21.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@ -12217,7 +12233,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-sqlite config.status 3.19.0
+sqlite config.status 3.21.0
 configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

--- a/configure.ac
+++ b/configure.ac
@ -120,7 +120,7 @@ USE_AMALGAMATION=1
 # if not, then we fall back to plain tclsh.
 # TODO: try other versions before falling back?
 # 
-AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.6 tclsh8.5 tclsh], none)
+AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.7 tclsh8.6 tclsh8.5 tclsh], none)
 if test "$TCLSH_CMD" = "none"; then
  # If we can't find a local tclsh, then building the amalgamation will fail.
  # We act as though --disable-amalgamation has been used.
@ -596,7 +596,7 @@ AC_ARG_ENABLE(memsys5,
  [enable_memsys5=yes],[enable_memsys5=no])
 AC_MSG_CHECKING([whether to support MEMSYS5])
 if test "${enable_memsys5}" = "yes"; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_MEMSYS5"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS5"
  AC_MSG_RESULT([yes])
 else
  AC_MSG_RESULT([no])
@ -606,7 +606,7 @@ AC_ARG_ENABLE(memsys3,
  [enable_memsys3=yes],[enable_memsys3=no])
 AC_MSG_CHECKING([whether to support MEMSYS3])
 if test "${enable_memsys3}" = "yes" -a "${enable_memsys5}" = "no"; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_MEMSYS3"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS3"
  AC_MSG_RESULT([yes])
 else
  AC_MSG_RESULT([no])
@ -618,20 +618,20 @@ AC_ARG_ENABLE(fts3, AC_HELP_STRING([--enable-fts3],
      [Enable the FTS3 extension]),
      [enable_fts3=yes],[enable_fts3=no])
 if test "${enable_fts3}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS3"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS3"
 fi
 AC_ARG_ENABLE(fts4, AC_HELP_STRING([--enable-fts4],
      [Enable the FTS4 extension]),
      [enable_fts4=yes],[enable_fts4=no])
 if test "${enable_fts4}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS4"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS4"
  AC_SEARCH_LIBS([log],[m])
 fi
 AC_ARG_ENABLE(fts5, AC_HELP_STRING([--enable-fts5],
      [Enable the FTS5 extension]),
      [enable_fts5=yes],[enable_fts5=no])
 if test "${enable_fts5}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_FTS5"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5"
  AC_SEARCH_LIBS([log],[m])
 fi

@ -641,7 +641,17 @@ AC_ARG_ENABLE(json1, AC_HELP_STRING([--enable-json1],
      [Enable the JSON1 extension]),
      [enable_json1=yes],[enable_json1=no])
 if test "${enable_json1}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_JSON1"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_JSON1"
+fi
+
+#########
+# See whether we should enable the LIMIT clause on UPDATE and DELETE
+# statements.
+AC_ARG_ENABLE(update-limit, AC_HELP_STRING([--enable-update-limit],
+      [Enable the UPDATE/DELETE LIMIT clause]),
+      [enable_udlimit=yes],[enable_udlimit=no])
+if test "${enable_udlimit}" = "yes" ; then
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT"
 fi

 #########
@ -650,7 +660,7 @@ AC_ARG_ENABLE(rtree, AC_HELP_STRING([--enable-rtree],
      [Enable the RTREE extension]),
      [enable_rtree=yes],[enable_rtree=no])
 if test "${enable_rtree}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_RTREE"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_RTREE"
 fi

 #########
@ -659,12 +669,12 @@ AC_ARG_ENABLE(session, AC_HELP_STRING([--enable-session],
      [Enable the SESSION extension]),
      [enable_session=yes],[enable_session=no])
 if test "${enable_session}" = "yes" ; then
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_SESSION"
-  OPT_FEATURE_FLAGS="$(OPT_FEATURE_FLAGS) -DSQLITE_ENABLE_PREUPDATE_HOOK"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_SESSION"
+  OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_PREUPDATE_HOOK"
 fi

 #########
-# attempt to duplicate any OMITS and ENABLES into the $(OPT_FEATURE_FLAGS) parameter
+# attempt to duplicate any OMITS and ENABLES into the ${OPT_FEATURE_FLAGS} parameter
 for option in $CFLAGS $CPPFLAGS
 do
  case $option in
--- a/doc/lemon.html
+++ b/doc/lemon.html
@ -2,12 +2,12 @@
 <head>
 <title>The Lemon Parser Generator</title>
 </head>
-<body bgcolor=white>
-<h1 align=center>The Lemon Parser Generator</h1>
+<body bgcolor='white'>
+<h1 align='center'>The Lemon Parser Generator</h1>

 <p>Lemon is an LALR(1) parser generator for C.
 It does the same job as "bison" and "yacc".
-But lemon is not a bison or yacc clone.  Lemon
+But Lemon is not a bison or yacc clone.  Lemon
 uses a different grammar syntax which is designed to
 reduce the number of coding errors.  Lemon also uses a
 parsing engine that is faster than yacc and
@ -16,13 +16,33 @@ bison and which is both reentrant and threadsafe.
 has also been updated so that it too can generate a
 reentrant and threadsafe parser.)
 Lemon also implements features that can be used
-to eliminate resource leaks, making is suitable for use
+to eliminate resource leaks, making it suitable for use
 in long-running programs such as graphical user interfaces
 or embedded controllers.</p>

 <p>This document is an introduction to the Lemon
 parser generator.</p>

+<h2>Security Note</h2>
+
+<p>The language parser code created by Lemon is very robust and
+is well-suited for use in internet-facing applications that need to
+safely process maliciously crafted inputs.
+
+<p>The "lemon.exe" command-line tool itself works great when given a valid
+input grammar file and almost always gives helpful
+error messages for malformed inputs.  However,  it is possible for
+a malicious user to craft a grammar file that will cause 
+lemon.exe to crash.
+We do not see this as a problem, as lemon.exe is not intended to be used
+with hostile inputs.
+To summarize:</p>
+
+<ul>
+<li>Parser code generated by lemon &rarr; Robust and secure
+<li>The "lemon.exe" command line tool itself &rarr; Not so much
+</ul>
+
 <h2>Theory of Operation</h2>

 <p>The main goal of Lemon is to translate a context free grammar (CFG)
@ -38,8 +58,8 @@ Lemon comes with a default parser template which works fine for most
 applications.  But the user is free to substitute a different parser
 template if desired.</p>

-<p>Depending on command-line options, Lemon will generate between
-one and three files of outputs.
+<p>Depending on command-line options, Lemon will generate up to
+three output files.
 <ul>
 <li>C code to implement the parser.
 <li>A header file defining an integer ID for each terminal symbol.
@ -70,17 +90,20 @@ the states used by the parser automaton.</p>
 You can obtain a list of the available command-line options together
 with a brief explanation of what each does by typing
 <pre>
-   lemon -?
+   lemon "-?"
 </pre>
 As of this writing, the following command-line options are supported:
 <ul>
 <li><b>-b</b>
 Show only the basis for each parser state in the report file.
 <li><b>-c</b>
-Do not compress the generated action tables.
+Do not compress the generated action tables.  The parser will be a
+little larger and slower, but it will detect syntax errors sooner.
 <li><b>-D<i>name</i></b>
-Define C preprocessor macro <i>name</i>.  This macro is useable by
-"%ifdef" lines in the grammar file.
+Define C preprocessor macro <i>name</i>.  This macro is usable by
+"<tt><a href='#pifdef'>%ifdef</a></tt>" and
+"<tt><a href='#pifdef'>%ifndef</a></tt>" lines
+in the grammar file.
 <li><b>-g</b>
 Do not generate a parser.  Instead write the input grammar to standard
 output with all comments, actions, and other extraneous text removed.
@ -145,7 +168,7 @@ once for each token:
 </pre>
 The first argument to the Parse() routine is the pointer returned by
 ParseAlloc().
-The second argument is a small positive integer that tells the parse the
+The second argument is a small positive integer that tells the parser the
 type of the next token in the data stream.
 There is one token type for each terminal symbol in the grammar.
 The gram.h file generated by Lemon contains #define statements that
@ -153,7 +176,7 @@ map symbolic terminal symbol names into appropriate integer values.
 A value of 0 for the second argument is a special flag to the
 parser to indicate that the end of input has been reached.
 The third argument is the value of the given token.  By default,
-the type of the third argument is integer, but the grammar will
+the type of the third argument is "void*", but the grammar will
 usually redefine this type to be some kind of structure.
 Typically the second argument will be a broad category of tokens
 such as "identifier" or "number" and the third argument will
@ -161,7 +184,7 @@ be the name of the identifier or the value of the number.</p>

 <p>The Parse() function may have either three or four arguments,
 depending on the grammar.  If the grammar specification file requests
-it (via the <a href='#extraarg'><tt>extra_argument</tt> directive</a>),
+it (via the <tt><a href='#extraarg'>%extra_argument</a></tt> directive),
 the Parse() function will have a fourth parameter that can be
 of any type chosen by the programmer.  The parser doesn't do anything
 with this argument except to pass it through to action routines.
@ -171,20 +194,20 @@ to the action routines without having to use global variables.</p>
 <p>A typical use of a Lemon parser might look something like the
 following:
 <pre>
-   01 ParseTree *ParseFile(const char *zFilename){
-   02    Tokenizer *pTokenizer;
-   03    void *pParser;
-   04    Token sToken;
-   05    int hTokenId;
-   06    ParserState sState;
-   07
-   08    pTokenizer = TokenizerCreate(zFilename);
-   09    pParser = ParseAlloc( malloc );
-   10    InitParserState(&sState);
-   11    while( GetNextToken(pTokenizer, &hTokenId, &sToken) ){
-   12       Parse(pParser, hTokenId, sToken, &sState);
+    1 ParseTree *ParseFile(const char *zFilename){
+    2    Tokenizer *pTokenizer;
+    3    void *pParser;
+    4    Token sToken;
+    5    int hTokenId;
+    6    ParserState sState;
+    7
+    8    pTokenizer = TokenizerCreate(zFilename);
+    9    pParser = ParseAlloc( malloc );
+   10    InitParserState(&amp;sState);
+   11    while( GetNextToken(pTokenizer, &amp;hTokenId, &amp;sToken) ){
+   12       Parse(pParser, hTokenId, sToken, &amp;sState);
   13    }
-   14    Parse(pParser, 0, sToken, &sState);
+   14    Parse(pParser, 0, sToken, &amp;sState);
   15    ParseFree(pParser, free );
   16    TokenizerFree(pTokenizer);
   17    return sState.treeRoot;
@ -217,7 +240,7 @@ tree.</p>
 <pre>
   ParseFile(){
      pParser = ParseAlloc( malloc );
-      while( GetNextToken(pTokenizer,&hTokenId, &sToken) ){
+      while( GetNextToken(pTokenizer,&amp;hTokenId, &amp;sToken) ){
         Parse(pParser, hTokenId, sToken);
      }
      Parse(pParser, 0, sToken);
@ -277,11 +300,11 @@ specifies additional information Lemon requires to do its job.
 Most of the work in using Lemon is in writing an appropriate
 grammar file.</p>

-<p>The grammar file for lemon is, for the most part, free format.
+<p>The grammar file for Lemon is, for the most part, free format.
 It does not have sections or divisions like yacc or bison.  Any
 declaration can occur at any point in the file.
 Lemon ignores whitespace (except where it is needed to separate
-tokens) and it honors the same commenting conventions as C and C++.</p>
+tokens), and it honors the same commenting conventions as C and C++.</p>

 <h3>Terminals and Nonterminals</h3>

@ -292,8 +315,8 @@ A terminal can contain lowercase letters after the first character,
 but the usual convention is to make terminals all uppercase.
 A nonterminal, on the other hand, is any string of alphanumeric
 and underscore characters than begins with a lowercase letter.
-Again, the usual convention is to make nonterminals use all lower
-case letters.</p>
+Again, the usual convention is to make nonterminals use all lowercase
+letters.</p>

 <p>In Lemon, terminal and nonterminal symbols do not need to
 be declared or identified in a separate section of the grammar file.
@ -319,7 +342,8 @@ The list of terminals and nonterminals on the right-hand side of the
 rule can be empty.
 Rules can occur in any order, except that the left-hand side of the
 first rule is assumed to be the start symbol for the grammar (unless
-specified otherwise using the <tt>%start</tt> directive described below.)
+specified otherwise using the <tt><a href='#start_symbol'>%start_symbol</a></tt>
+directive described below.)
 A typical sequence of grammar rules might look something like this:
 <pre>
  expr ::= expr PLUS expr.
@ -362,7 +386,7 @@ names to each symbol in a grammar rule and then using those symbolic
 names in the action.
 In yacc or bison, one would write this:
 <pre>
-  expr -> expr PLUS expr  { $$ = $1 + $3; };
+  expr -&gt; expr PLUS expr  { $$ = $1 + $3; };
 </pre>
 But in Lemon, the same rule becomes the following:
 <pre>
@ -403,13 +427,13 @@ whichever rule comes first in the grammar file.</p>

 <p>Just like in
 yacc and bison, Lemon allows a measure of control
-over the resolution of paring conflicts using precedence rules.
+over the resolution of parsing conflicts using precedence rules.
 A precedence value can be assigned to any terminal symbol
 using the
-<a href='#pleft'>%left</a>,
-<a href='#pright'>%right</a> or
-<a href='#pnonassoc'>%nonassoc</a> directives.  Terminal symbols
-mentioned in earlier directives have a lower precedence that
+<tt><a href='#pleft'>%left</a></tt>,
+<tt><a href='#pright'>%right</a></tt> or
+<tt><a href='#pnonassoc'>%nonassoc</a></tt> directives.  Terminal symbols
+mentioned in earlier directives have a lower precedence than
 terminal symbols mentioned in later directives.  For example:</p>

 <p><pre>
@ -485,29 +509,29 @@ as follows:
 <li> If the precedence of the token to be shifted is greater than
     the precedence of the rule to reduce, then resolve in favor
     of the shift.  No parsing conflict is reported.
-<li> If the precedence of the token it be shifted is less than the
+<li> If the precedence of the token to be shifted is less than the
     precedence of the rule to reduce, then resolve in favor of the
     reduce action.  No parsing conflict is reported.
 <li> If the precedences are the same and the shift token is
     right-associative, then resolve in favor of the shift.
     No parsing conflict is reported.
-<li> If the precedences are the same the shift token is
+<li> If the precedences are the same and the shift token is
     left-associative, then resolve in favor of the reduce.
     No parsing conflict is reported.
-<li> Otherwise, resolve the conflict by doing the shift and
-     report the parsing conflict.
+<li> Otherwise, resolve the conflict by doing the shift, and
+     report a parsing conflict.
 </ul>
 Reduce-reduce conflicts are resolved this way:
 <ul>
 <li> If either reduce rule
     lacks precedence information, then resolve in favor of the
-     rule that appears first in the grammar and report a parsing
+     rule that appears first in the grammar, and report a parsing
     conflict.
-<li> If both rules have precedence and the precedence is different
+<li> If both rules have precedence and the precedence is different,
     then resolve the dispute in favor of the rule with the highest
-     precedence and do not report a conflict.
+     precedence, and do not report a conflict.
 <li> Otherwise, resolve the conflict by reducing by the rule that
-     appears first in the grammar and report a parsing conflict.
+     appears first in the grammar, and report a parsing conflict.
 </ul>

 <h3>Special Directives</h3>
@ -516,40 +540,40 @@ Reduce-reduce conflicts are resolved this way:
 directives.  We've described all the grammar rules, so now we'll
 talk about the special directives.</p>

-<p>Directives in lemon can occur in any order.  You can put them before
-the grammar rules, or after the grammar rules, or in the mist of the
+<p>Directives in Lemon can occur in any order.  You can put them before
+the grammar rules, or after the grammar rules, or in the midst of the
 grammar rules.  It doesn't matter.  The relative order of
 directives used to assign precedence to terminals is important, but
 other than that, the order of directives in Lemon is arbitrary.</p>

 <p>Lemon supports the following special directives:
 <ul>
-<li><tt>%code</tt>
-<li><tt>%default_destructor</tt>
-<li><tt>%default_type</tt>
-<li><tt>%destructor</tt>
-<li><tt>%endif</tt>
-<li><tt>%extra_argument</tt>
-<li><tt>%fallback</tt>
-<li><tt>%ifdef</tt>
-<li><tt>%ifndef</tt>
-<li><tt>%include</tt>
-<li><tt>%left</tt>
-<li><tt>%name</tt>
-<li><tt>%nonassoc</tt>
-<li><tt>%parse_accept</tt>
-<li><tt>%parse_failure </tt>
-<li><tt>%right</tt>
-<li><tt>%stack_overflow</tt>
-<li><tt>%stack_size</tt>
-<li><tt>%start_symbol</tt>
-<li><tt>%syntax_error</tt>
-<li><tt>%token_class</tt>
-<li><tt>%token_destructor</tt>
-<li><tt>%token_prefix</tt>
-<li><tt>%token_type</tt>
-<li><tt>%type</tt>
-<li><tt>%wildcard</tt>
+<li><tt><a href='#pcode'>%code</a></tt>
+<li><tt><a href='#default_destructor'>%default_destructor</a></tt>
+<li><tt><a href='#default_type'>%default_type</a></tt>
+<li><tt><a href='#destructor'>%destructor</a></tt>
+<li><tt><a href='#pifdef'>%endif</a></tt>
+<li><tt><a href='#extraarg'>%extra_argument</a></tt>
+<li><tt><a href='#pfallback'>%fallback</a></tt>
+<li><tt><a href='#pifdef'>%ifdef</a></tt>
+<li><tt><a href='#pifdef'>%ifndef</a></tt>
+<li><tt><a href='#pinclude'>%include</a></tt>
+<li><tt><a href='#pleft'>%left</a></tt>
+<li><tt><a href='#pname'>%name</a></tt>
+<li><tt><a href='#pnonassoc'>%nonassoc</a></tt>
+<li><tt><a href='#parse_accept'>%parse_accept</a></tt>
+<li><tt><a href='#parse_failure'>%parse_failure</a></tt>
+<li><tt><a href='#pright'>%right</a></tt>
+<li><tt><a href='#stack_overflow'>%stack_overflow</a></tt>
+<li><tt><a href='#stack_size'>%stack_size</a></tt>
+<li><tt><a href='#start_symbol'>%start_symbol</a></tt>
+<li><tt><a href='#syntax_error'>%syntax_error</a></tt>
+<li><tt><a href='#token_class'>%token_class</a></tt>
+<li><tt><a href='#token_destructor'>%token_destructor</a></tt>
+<li><tt><a href='#token_prefix'>%token_prefix</a></tt>
+<li><tt><a href='#token_type'>%token_type</a></tt>
+<li><tt><a href='#ptype'>%type</a></tt>
+<li><tt><a href='#pwildcard'>%wildcard</a></tt>
 </ul>
 Each of these directives will be described separately in the
 following sections:</p>
@ -557,43 +581,42 @@ following sections:</p>
 <a name='pcode'></a>
 <h4>The <tt>%code</tt> directive</h4>

-<p>The %code directive is used to specify addition C code that
+<p>The <tt>%code</tt> directive is used to specify additional C code that
 is added to the end of the main output file.  This is similar to
-the <a href='#pinclude'>%include</a> directive except that %include
-is inserted at the beginning of the main output file.</p>
+the <tt><a href='#pinclude'>%include</a></tt> directive except that
+<tt>%include</tt> is inserted at the beginning of the main output file.</p>

-<p>%code is typically used to include some action routines or perhaps
+<p><tt>%code</tt> is typically used to include some action routines or perhaps
 a tokenizer or even the "main()" function
 as part of the output file.</p>

 <a name='default_destructor'></a>
 <h4>The <tt>%default_destructor</tt> directive</h4>

-<p>The %default_destructor directive specifies a destructor to 
+<p>The <tt>%default_destructor</tt> directive specifies a destructor to
 use for non-terminals that do not have their own destructor
-specified by a separate %destructor directive.  See the documentation
-on the <a name='#destructor'>%destructor</a> directive below for
+specified by a separate <tt>%destructor</tt> directive.  See the documentation
+on the <tt><a name='#destructor'>%destructor</a></tt> directive below for
 additional information.</p>

-<p>In some grammers, many different non-terminal symbols have the
+<p>In some grammars, many different non-terminal symbols have the
 same data type and hence the same destructor.  This directive is
-a convenience way to specify the same destructor for all those
+a convenient way to specify the same destructor for all those
 non-terminals using a single statement.</p>

 <a name='default_type'></a>
 <h4>The <tt>%default_type</tt> directive</h4>

-<p>The %default_type directive specifies the datatype of non-terminal
-symbols that do no have their own datatype defined using a separate
-<a href='#ptype'>%type</a> directive.  
-</p>
+<p>The <tt>%default_type</tt> directive specifies the data type of non-terminal
+symbols that do not have their own data type defined using a separate
+<tt><a href='#ptype'>%type</a></tt> directive.</p>

 <a name='destructor'></a>
 <h4>The <tt>%destructor</tt> directive</h4>

-<p>The %destructor directive is used to specify a destructor for
+<p>The <tt>%destructor</tt> directive is used to specify a destructor for
 a non-terminal symbol.
-(See also the <a href='#token_destructor'>%token_destructor</a>
+(See also the <tt><a href='#token_destructor'>%token_destructor</a></tt>
 directive which is used to specify a destructor for terminal symbols.)</p>

 <p>A non-terminal's destructor is called to dispose of the
@ -615,7 +638,7 @@ or other resources held by that non-terminal.</p>
   %destructor nt { free($$); }
   nt(A) ::= ID NUM.   { A = malloc( 100 ); }
 </pre>
-This example is a bit contrived but it serves to illustrate how
+This example is a bit contrived, but it serves to illustrate how
 destructors work.  The example shows a non-terminal named
 "nt" that holds values of type "void*".  When the rule for
 an "nt" reduces, it sets the value of the non-terminal to
@ -631,17 +654,17 @@ stack, unless the non-terminal is used in a C-code action.  If
 the non-terminal is used by C-code, then it is assumed that the
 C-code will take care of destroying it.
 More commonly, the value is used to build some
-larger structure and we don't want to destroy it, which is why
+larger structure, and we don't want to destroy it, which is why
 the destructor is not called in this circumstance.</p>

 <p>Destructors help avoid memory leaks by automatically freeing
 allocated objects when they go out of scope.
 To do the same using yacc or bison is much more difficult.</p>

-<a name="extraarg"></a>
+<a name='extraarg'></a>
 <h4>The <tt>%extra_argument</tt> directive</h4>

-The %extra_argument directive instructs Lemon to add a 4th parameter
+The <tt>%extra_argument</tt> directive instructs Lemon to add a 4th parameter
 to the parameter list of the Parse() function it generates.  Lemon
 doesn't do anything itself with this extra argument, but it does
 make the argument available to C-code action routines, destructors,
@ -659,61 +682,64 @@ in the most recent call to Parse().</p>
 <a name='pfallback'></a>
 <h4>The <tt>%fallback</tt> directive</h4>

-<p>The %fallback directive specifies an alternative meaning for one
+<p>The <tt>%fallback</tt> directive specifies an alternative meaning for one
 or more tokens.  The alternative meaning is tried if the original token
-would have generated a syntax error.
+would have generated a syntax error.</p>

-<p>The %fallback directive was added to support robust parsing of SQL
-syntax in <a href="https://www.sqlite.org/">SQLite</a>.
+<p>The <tt>%fallback</tt> directive was added to support robust parsing of SQL
+syntax in <a href='https://www.sqlite.org/'>SQLite</a>.
 The SQL language contains a large assortment of keywords, each of which
 appears as a different token to the language parser.  SQL contains so
-many keywords, that it can be difficult for programmers to keep up with
+many keywords that it can be difficult for programmers to keep up with
 them all.  Programmers will, therefore, sometimes mistakenly use an
-obscure language keyword for an identifier.  The %fallback directive
+obscure language keyword for an identifier.  The <tt>%fallback</tt> directive
 provides a mechanism to tell the parser:  "If you are unable to parse
-this keyword, try treating it as an identifier instead."
+this keyword, try treating it as an identifier instead."</p>

-<p>The syntax of %fallback is as follows:
+<p>The syntax of <tt>%fallback</tt> is as follows:

 <blockquote>
 <tt>%fallback</tt> <i>ID</i> <i>TOKEN...</i> <b>.</b>
-</blockquote>
+</blockquote></p>

-<p>In words, the %fallback directive is followed by a list of token names
-terminated by a period.  The first token name is the fallback token - the
+<p>In words, the <tt>%fallback</tt> directive is followed by a list of token
+names terminated by a period.
+The first token name is the fallback token &mdash; the
 token to which all the other tokens fall back to.  The second and subsequent
 arguments are tokens which fall back to the token identified by the first
-argument.
+argument.</p>

 <a name='pifdef'></a>
-<h4>The <tt>%ifdef</tt>, <tt>%ifndef</tt>, and <tt>%endif</tt> directives.</h4>
+<h4>The <tt>%ifdef</tt>, <tt>%ifndef</tt>, and <tt>%endif</tt> directives</h4>

-<p>The %ifdef, %ifndef, and %endif directives are similar to
-#ifdef, #ifndef, and #endif in the C-preprocessor, just not as general.
+<p>The <tt>%ifdef</tt>, <tt>%ifndef</tt>, and <tt>%endif</tt> directives
+are similar to #ifdef, #ifndef, and #endif in the C-preprocessor,
+just not as general.
 Each of these directives must begin at the left margin.  No whitespace
-is allowed between the "%" and the directive name.
+is allowed between the "%" and the directive name.</p>

-<p>Grammar text in between "%ifdef MACRO" and the next nested "%endif" is
+<p>Grammar text in between "<tt>%ifdef MACRO</tt>" and the next nested
+"<tt>%endif</tt>" is
 ignored unless the "-DMACRO" command-line option is used.  Grammar text
-betwen "%ifndef MACRO" and the next nested "%endif" is included except when
-the "-DMACRO" command-line option is used.
+betwen "<tt>%ifndef MACRO</tt>" and the next nested "<tt>%endif</tt>" is
+included except when the "-DMACRO" command-line option is used.</p>

-<p>Note that the argument to %ifdef and %ifndef must be a single 
-preprocessor symbol name, not a general expression.  There is no "%else"
-directive.
+<p>Note that the argument to <tt>%ifdef</tt> and <tt>%ifndef</tt> must
+be a single preprocessor symbol name, not a general expression.
+There is no "<tt>%else</tt>" directive.</p>


 <a name='pinclude'></a>
 <h4>The <tt>%include</tt> directive</h4>

-<p>The %include directive specifies C code that is included at the
-top of the generated parser.  You can include any text you want --
+<p>The <tt>%include</tt> directive specifies C code that is included at the
+top of the generated parser.  You can include any text you want &mdash;
 the Lemon parser generator copies it blindly.  If you have multiple
-%include directives in your grammar file, their values are concatenated
-so that all %include code ultimately appears near the top of the
-generated parser, in the same order as it appeared in the grammer.</p>
+<tt>%include</tt> directives in your grammar file, their values are concatenated
+so that all <tt>%include</tt> code ultimately appears near the top of the
+generated parser, in the same order as it appeared in the grammar.</p>

-<p>The %include directive is very handy for getting some extra #include
+<p>The <tt>%include</tt> directive is very handy for getting some extra #include
 preprocessor statements at the beginning of the generated parser.
 For example:</p>

@ -722,17 +748,19 @@ For example:</p>
 </pre></p>

 <p>This might be needed, for example, if some of the C actions in the
-grammar call functions that are prototyed in unistd.h.</p>
+grammar call functions that are prototyped in unistd.h.</p>

 <a name='pleft'></a>
 <h4>The <tt>%left</tt> directive</h4>

-The %left directive is used (along with the <a href='#pright'>%right</a> and
-<a href='#pnonassoc'>%nonassoc</a> directives) to declare precedences of 
-terminal symbols.  Every terminal symbol whose name appears after
-a %left directive but before the next period (".") is
+The <tt>%left</tt> directive is used (along with the
+<tt><a href='#pright'>%right</a></tt> and
+<tt><a href='#pnonassoc'>%nonassoc</a></tt> directives) to declare
+precedences of terminal symbols.
+Every terminal symbol whose name appears after
+a <tt>%left</tt> directive but before the next period (".") is
 given the same left-associative precedence value.  Subsequent
-%left directives have higher precedence.  For example:</p>
+<tt>%left</tt> directives have higher precedence.  For example:</p>

 <p><pre>
   %left AND.
@ -743,20 +771,21 @@ given the same left-associative precedence value.  Subsequent
   %right EXP NOT.
 </pre></p>

-<p>Note the period that terminates each %left, %right or %nonassoc
+<p>Note the period that terminates each <tt>%left</tt>,
+<tt>%right</tt> or <tt>%nonassoc</tt>
 directive.</p>

 <p>LALR(1) grammars can get into a situation where they require
 a large amount of stack space if you make heavy use or right-associative
-operators.  For this reason, it is recommended that you use %left
-rather than %right whenever possible.</p>
+operators.  For this reason, it is recommended that you use <tt>%left</tt>
+rather than <tt>%right</tt> whenever possible.</p>

 <a name='pname'></a>
 <h4>The <tt>%name</tt> directive</h4>

 <p>By default, the functions generated by Lemon all begin with the
 five-character string "Parse".  You can change this string to something
-different using the %name directive.  For instance:</p>
+different using the <tt>%name</tt> directive.  For instance:</p>

 <p><pre>
   %name Abcde
@ -770,9 +799,8 @@ functions named
 <li> AbcdeTrace(), and
 <li> Abcde().
 </ul>
-The %name directive allows you to generator two or more different
-parsers and link them all into the same executable.
-</p>
+The <tt>%name</tt> directive allows you to generate two or more different
+parsers and link them all into the same executable.</p>

 <a name='pnonassoc'></a>
 <h4>The <tt>%nonassoc</tt> directive</h4>
@ -780,12 +808,13 @@ parsers and link them all into the same executable.
 <p>This directive is used to assign non-associative precedence to
 one or more terminal symbols.  See the section on
 <a href='#precrules'>precedence rules</a>
-or on the <a href='#pleft'>%left</a> directive for additional information.</p>
+or on the <tt><a href='#pleft'>%left</a></tt> directive
+for additional information.</p>

 <a name='parse_accept'></a>
 <h4>The <tt>%parse_accept</tt> directive</h4>

-<p>The %parse_accept directive specifies a block of C code that is
+<p>The <tt>%parse_accept</tt> directive specifies a block of C code that is
 executed whenever the parser accepts its input string.  To "accept"
 an input string means that the parser was able to process all tokens
 without error.</p>
@ -801,7 +830,7 @@ without error.</p>
 <a name='parse_failure'></a>
 <h4>The <tt>%parse_failure</tt> directive</h4>

-<p>The %parse_failure directive specifies a block of C code that
+<p>The <tt>%parse_failure</tt> directive specifies a block of C code that
 is executed whenever the parser fails complete.  This code is not
 executed until the parser has tried and failed to resolve an input
 error using is usual error recovery strategy.  The routine is
@ -824,7 +853,7 @@ or on the <a href='#pleft'>%left</a> directive for additional information.</p>
 <a name='stack_overflow'></a>
 <h4>The <tt>%stack_overflow</tt> directive</h4>

-<p>The %stack_overflow directive specifies a block of C code that
+<p>The <tt>%stack_overflow</tt> directive specifies a block of C code that
 is executed if the parser's internal stack ever overflows.  Typically
 this just prints an error message.  After a stack overflow, the parser
 will be unable to continue and must be reset.</p>
@ -837,7 +866,7 @@ will be unable to continue and must be reset.</p>

 <p>You can help prevent parser stack overflows by avoiding the use
 of right recursion and right-precedence operators in your grammar.
-Use left recursion and and left-precedence operators instead, to
+Use left recursion and and left-precedence operators instead to
 encourage rules to reduce sooner and keep the stack size down.
 For example, do rules like this:
 <pre>
@ -848,7 +877,7 @@ Not like this:
 <pre>
   list ::= element list.      // right-recursion.  Bad!
   list ::= .
-</pre>
+</pre></p>

 <a name='stack_size'></a>
 <h4>The <tt>%stack_size</tt> directive</h4>
@ -856,7 +885,7 @@ Not like this:
 <p>If stack overflow is a problem and you can't resolve the trouble
 by using left-recursion, then you might want to increase the size
 of the parser's stack using this directive.  Put an positive integer
-after the %stack_size directive and Lemon will generate a parse
+after the <tt>%stack_size</tt> directive and Lemon will generate a parse
 with a stack of the requested size.  The default value is 100.</p>

 <p><pre>
@ -866,25 +895,40 @@ with a stack of the requested size.  The default value is 100.</p>
 <a name='start_symbol'></a>
 <h4>The <tt>%start_symbol</tt> directive</h4>

-<p>By default, the start-symbol for the grammar that Lemon generates
+<p>By default, the start symbol for the grammar that Lemon generates
 is the first non-terminal that appears in the grammar file.  But you
-can choose a different start-symbol using the %start_symbol directive.</p>
+can choose a different start symbol using the
+<tt>%start_symbol</tt> directive.</p>

 <p><pre>
   %start_symbol  prog
 </pre></p>

+<a name='syntax_error'></a>
+<h4>The <tt>%syntax_error</tt> directive</h4>
+
+<p>See <a href='#error_processing'>Error Processing</a>.</p>
+
+<a name='token_class'></a>
+<h4>The <tt>%token_class</tt> directive</h4>
+
+<p>Undocumented.  Appears to be related to the MULTITERMINAL concept.
+<a href='http://sqlite.org/src/fdiff?v1=796930d5fc2036c7&v2=624b24c5dc048e09&sbs=0'>Implementation</a>.</p>
+
 <a name='token_destructor'></a>
 <h4>The <tt>%token_destructor</tt> directive</h4>

-<p>The %destructor directive assigns a destructor to a non-terminal
-symbol.  (See the description of the %destructor directive above.)
-This directive does the same thing for all terminal symbols.</p>
+<p>The <tt>%destructor</tt> directive assigns a destructor to a non-terminal
+symbol.  (See the description of the
+<tt><a href='%destructor'>%destructor</a></tt> directive above.)
+The <tt>%token_destructor</tt> directive does the same thing
+for all terminal symbols.</p>

 <p>Unlike non-terminal symbols which may each have a different data type
 for their values, terminals all use the same data type (defined by
-the %token_type directive) and so they use a common destructor.  Other
-than that, the token destructor works just like the non-terminal
+the <tt><a href='#token_type'>%token_type</a></tt> directive)
+and so they use a common destructor.
+Other than that, the token destructor works just like the non-terminal
 destructors.</p>

 <a name='token_prefix'></a>
@ -893,8 +937,9 @@ destructors.</p>
 <p>Lemon generates #defines that assign small integer constants
 to each terminal symbol in the grammar.  If desired, Lemon will
 add a prefix specified by this directive
-to each of the #defines it generates.
-So if the default output of Lemon looked like this:
+to each of the #defines it generates.</p>
+
+<p>So if the default output of Lemon looked like this:
 <pre>
    #define AND              1
    #define MINUS            2
@ -911,7 +956,7 @@ to cause Lemon to produce these symbols instead:
    #define TOKEN_MINUS      2
    #define TOKEN_OR         3
    #define TOKEN_PLUS       4
-</pre>
+</pre></p>

 <a name='token_type'></a><a name='ptype'></a>
 <h4>The <tt>%token_type</tt> and <tt>%type</tt> directives</h4>
@ -932,7 +977,7 @@ token structure.  Like this:</p>
 is "void*".</p>

 <p>Non-terminal symbols can each have their own data types.  Typically
-the data type  of a non-terminal is a pointer to the root of a parse-tree
+the data type of a non-terminal is a pointer to the root of a parse tree
 structure that contains all information about that non-terminal.
 For example:</p>

@ -953,14 +998,15 @@ and able to pay that price, fine.  You just need to know.</p>
 <a name='pwildcard'></a>
 <h4>The <tt>%wildcard</tt> directive</h4>

-<p>The %wildcard directive is followed by a single token name and a
+<p>The <tt>%wildcard</tt> directive is followed by a single token name and a
 period.  This directive specifies that the identified token should
-match any input token.
+match any input token.</p>

 <p>When the generated parser has the choice of matching an input against
 the wildcard token and some other token, the other token is always used.
-The wildcard token is only matched if there are no other alternatives.
+The wildcard token is only matched if there are no alternatives.</p>

+<a name='error_processing'></a>
 <h3>Error Processing</h3>

 <p>After extensive experimentation over several years, it has been
@ -968,16 +1014,17 @@ discovered that the error recovery strategy used by yacc is about
 as good as it gets.  And so that is what Lemon uses.</p>

 <p>When a Lemon-generated parser encounters a syntax error, it
-first invokes the code specified by the %syntax_error directive, if
+first invokes the code specified by the <tt>%syntax_error</tt> directive, if
 any.  It then enters its error recovery strategy.  The error recovery
 strategy is to begin popping the parsers stack until it enters a
 state where it is permitted to shift a special non-terminal symbol
 named "error".  It then shifts this non-terminal and continues
-parsing.  But the %syntax_error routine will not be called again
+parsing.  The <tt>%syntax_error</tt> routine will not be called again
 until at least three new tokens have been successfully shifted.</p>

 <p>If the parser pops its stack until the stack is empty, and it still
-is unable to shift the error symbol, then the %parse_failed routine
+is unable to shift the error symbol, then the
+<tt><a href='#parse_failure'>%parse_failure</a></tt> routine
 is invoked and the parser resets itself to its start state, ready
 to begin parsing a new file.  This is what will happen at the very
 first syntax error, of course, if there are no instances of the
--- a/ext/fts3/fts3.c
+++ b/ext/fts3/fts3.c
@ -1707,6 +1707,19 @@ static void fts3CursorFinalizeStmt(Fts3Cursor *pCsr){
  sqlite3_finalize(pCsr->pStmt);
 }

+/*
+** Free all resources currently held by the cursor passed as the only
+** argument.
+*/
+static void fts3ClearCursor(Fts3Cursor *pCsr){
+  fts3CursorFinalizeStmt(pCsr);
+  sqlite3Fts3FreeDeferredTokens(pCsr);
+  sqlite3_free(pCsr->aDoclist);
+  sqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
+  sqlite3Fts3ExprFree(pCsr->pExpr);
+  memset(&(&pCsr->base)[1], 0, sizeof(Fts3Cursor)-sizeof(sqlite3_vtab_cursor));
+}
+
 /*
 ** Close the cursor.  For additional information see the documentation
 ** on the xClose method of the virtual table interface.
@ -1714,11 +1727,7 @@ static void fts3CursorFinalizeStmt(Fts3Cursor *pCsr){
 static int fts3CloseMethod(sqlite3_vtab_cursor *pCursor){
  Fts3Cursor *pCsr = (Fts3Cursor *)pCursor;
  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
-  fts3CursorFinalizeStmt(pCsr);
-  sqlite3Fts3ExprFree(pCsr->pExpr);
-  sqlite3Fts3FreeDeferredTokens(pCsr);
-  sqlite3_free(pCsr->aDoclist);
-  sqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
+  fts3ClearCursor(pCsr);
  assert( ((Fts3Table *)pCsr->base.pVtab)->pSegments==0 );
  sqlite3_free(pCsr);
  return SQLITE_OK;
@ -1744,7 +1753,7 @@ static int fts3CursorSeekStmt(Fts3Cursor *pCsr){
    }else{
      zSql = sqlite3_mprintf("SELECT %s WHERE rowid = ?", p->zReadExprlist);
      if( !zSql ) return SQLITE_NOMEM;
-      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pCsr->pStmt, 0);
+      rc = sqlite3_prepare_v3(p->db, zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0);
      sqlite3_free(zSql);
    }
    if( rc==SQLITE_OK ) pCsr->bSeekStmt = 1;
@ -3219,11 +3228,7 @@ static int fts3FilterMethod(
  assert( iIdx==nVal );

  /* In case the cursor has been used before, clear it now. */
-  fts3CursorFinalizeStmt(pCsr);
-  sqlite3_free(pCsr->aDoclist);
-  sqlite3Fts3MIBufferFree(pCsr->pMIBuffer);
-  sqlite3Fts3ExprFree(pCsr->pExpr);
-  memset(&pCursor[1], 0, sizeof(Fts3Cursor)-sizeof(sqlite3_vtab_cursor));
+  fts3ClearCursor(pCsr);

  /* Set the lower and upper bounds on docids to return */
  pCsr->iMinDocid = fts3DocidRange(pDocidGe, SMALLEST_INT64);
@ -3281,7 +3286,7 @@ static int fts3FilterMethod(
      );
    }
    if( zSql ){
-      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pCsr->pStmt, 0);
+      rc = sqlite3_prepare_v3(p->db,zSql,-1,SQLITE_PREPARE_PERSISTENT,&pCsr->pStmt,0);
      sqlite3_free(zSql);
    }else{
      rc = SQLITE_NOMEM;
@ -3302,7 +3307,12 @@ static int fts3FilterMethod(
 ** routine to find out if it has reached the end of a result set.
 */
 static int fts3EofMethod(sqlite3_vtab_cursor *pCursor){
-  return ((Fts3Cursor *)pCursor)->isEof;
+  Fts3Cursor *pCsr = (Fts3Cursor*)pCursor;
+  if( pCsr->isEof ){
+    fts3ClearCursor(pCsr);
+    pCsr->isEof = 1;
+  }
+  return pCsr->isEof;
 }

 /* 
@ -3343,8 +3353,7 @@ static int fts3ColumnMethod(
  switch( iCol-p->nColumn ){
    case 0:
      /* The special 'table-name' column */
-      sqlite3_result_blob(pCtx, &pCsr, sizeof(Fts3Cursor*), SQLITE_TRANSIENT);
-      sqlite3_result_subtype(pCtx, SQLITE_BLOB);
+      sqlite3_result_pointer(pCtx, pCsr, "fts3cursor", 0);
      break;

    case 1:
@ -3562,9 +3571,10 @@ static int fts3FunctionArg(
  sqlite3_value *pVal,            /* argv[0] passed to function */
  Fts3Cursor **ppCsr              /* OUT: Store cursor handle here */
 ){
-  int rc = SQLITE_OK;
-  if( sqlite3_value_subtype(pVal)==SQLITE_BLOB ){
-    *ppCsr = *(Fts3Cursor**)sqlite3_value_blob(pVal);
+  int rc;
+  *ppCsr = (Fts3Cursor*)sqlite3_value_pointer(pVal, "fts3cursor");
+  if( (*ppCsr)!=0 ){
+    rc = SQLITE_OK;
  }else{
    char *zErr = sqlite3_mprintf("illegal first argument to %s", zFunc);
    sqlite3_result_error(pContext, zErr, -1);
--- a/ext/fts3/fts3_write.c
+++ b/ext/fts3/fts3_write.c
@ -407,7 +407,8 @@ static int fts3SqlStmt(
    if( !zSql ){
      rc = SQLITE_NOMEM;
    }else{
-      rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, NULL);
+      rc = sqlite3_prepare_v3(p->db, zSql, -1, SQLITE_PREPARE_PERSISTENT,
+                              &pStmt, NULL);
      sqlite3_free(zSql);
      assert( rc==SQLITE_OK || pStmt==0 );
      p->aStmt[eStmt] = pStmt;
--- a/ext/fts5/fts5_buffer.c
+++ b/ext/fts5/fts5_buffer.c
@ -67,10 +67,12 @@ void sqlite3Fts5BufferAppendBlob(
  const u8 *pData
 ){
  assert_nc( *pRc || nData>=0 );
+  if( nData ){
    if( fts5BufferGrow(pRc, pBuf, nData) ) return;
    memcpy(&pBuf->p[pBuf->n], pData, nData);
    pBuf->n += nData;
  }
+}

 /*
 ** Append the nul-terminated string zStr to the buffer pBuf. This function
@ -246,8 +248,8 @@ void *sqlite3Fts5MallocZero(int *pRc, int nByte){
  void *pRet = 0;
  if( *pRc==SQLITE_OK ){
    pRet = sqlite3_malloc(nByte);
-    if( pRet==0 && nByte>0 ){
-      *pRc = SQLITE_NOMEM;
+    if( pRet==0 ){
+      if( nByte>0 ) *pRc = SQLITE_NOMEM;
    }else{
      memset(pRet, 0, nByte);
    }
--- a/ext/fts5/fts5_hash.c
+++ b/ext/fts5/fts5_hash.c
@ -36,9 +36,10 @@ struct Fts5Hash {

 /*
 ** Each entry in the hash table is represented by an object of the 
-** following type. Each object, its key (zKey[]) and its current data
-** are stored in a single memory allocation. The position list data 
-** immediately follows the key data in memory.
+** following type. Each object, its key (a nul-terminated string) and 
+** its current data are stored in a single memory allocation. The 
+** key immediately follows the object in memory. The position list
+** data immediately follows the key data in memory.
 **
 ** The data that follows the key is in a similar, but not identical format
 ** to the doclist data stored in the database. It is:
@ -62,20 +63,20 @@ struct Fts5HashEntry {
  int nAlloc;                     /* Total size of allocation */
  int iSzPoslist;                 /* Offset of space for 4-byte poslist size */
  int nData;                      /* Total bytes of data (incl. structure) */
-  int nKey;                       /* Length of zKey[] in bytes */
+  int nKey;                       /* Length of key in bytes */
  u8 bDel;                        /* Set delete-flag @ iSzPoslist */
  u8 bContent;                    /* Set content-flag (detail=none mode) */
  i16 iCol;                       /* Column of last value written */
  int iPos;                       /* Position of last value written */
  i64 iRowid;                     /* Rowid of last value written */
-  char zKey[8];                   /* Nul-terminated entry key */
 };

 /*
-** Size of Fts5HashEntry without the zKey[] array.
+** Eqivalent to:
+**
+**   char *fts5EntryKey(Fts5HashEntry *pEntry){ return zKey; }
 */
-#define FTS5_HASHENTRYSIZE (sizeof(Fts5HashEntry)-8)
-
+#define fts5EntryKey(p) ( ((char *)(&(p)[1])) )


 /*
@ -170,10 +171,11 @@ static int fts5HashResize(Fts5Hash *pHash){

  for(i=0; i<pHash->nSlot; i++){
    while( apOld[i] ){
-      int iHash;
+      unsigned int iHash;
      Fts5HashEntry *p = apOld[i];
      apOld[i] = p->pHashNext;
-      iHash = fts5HashKey(nNew, (u8*)p->zKey, (int)strlen(p->zKey));
+      iHash = fts5HashKey(nNew, (u8*)fts5EntryKey(p),
+                          (int)strlen(fts5EntryKey(p)));
      p->pHashNext = apNew[iHash];
      apNew[iHash] = p;
    }
@ -244,9 +246,10 @@ int sqlite3Fts5HashWrite(
  /* Attempt to locate an existing hash entry */
  iHash = fts5HashKey2(pHash->nSlot, (u8)bByte, (const u8*)pToken, nToken);
  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
-    if( p->zKey[0]==bByte 
+    char *zKey = fts5EntryKey(p);
+    if( zKey[0]==bByte 
     && p->nKey==nToken
-     && memcmp(&p->zKey[1], pToken, nToken)==0 
+     && memcmp(&zKey[1], pToken, nToken)==0 
    ){
      break;
    }
@ -255,7 +258,8 @@ int sqlite3Fts5HashWrite(
  /* If an existing hash entry cannot be found, create a new one. */
  if( p==0 ){
    /* Figure out how much space to allocate */
-    int nByte = FTS5_HASHENTRYSIZE + (nToken+1) + 1 + 64;
+    char *zKey;
+    int nByte = sizeof(Fts5HashEntry) + (nToken+1) + 1 + 64;
    if( nByte<128 ) nByte = 128;

    /* Grow the Fts5Hash.aSlot[] array if necessary. */
@ -268,14 +272,15 @@ int sqlite3Fts5HashWrite(
    /* Allocate new Fts5HashEntry and add it to the hash table. */
    p = (Fts5HashEntry*)sqlite3_malloc(nByte);
    if( !p ) return SQLITE_NOMEM;
-    memset(p, 0, FTS5_HASHENTRYSIZE);
+    memset(p, 0, sizeof(Fts5HashEntry));
    p->nAlloc = nByte;
-    p->zKey[0] = bByte;
-    memcpy(&p->zKey[1], pToken, nToken);
-    assert( iHash==fts5HashKey(pHash->nSlot, (u8*)p->zKey, nToken+1) );
+    zKey = fts5EntryKey(p);
+    zKey[0] = bByte;
+    memcpy(&zKey[1], pToken, nToken);
+    assert( iHash==fts5HashKey(pHash->nSlot, (u8*)zKey, nToken+1) );
    p->nKey = nToken;
-    p->zKey[nToken+1] = '\0';
-    p->nData = nToken+1 + 1 + FTS5_HASHENTRYSIZE;
+    zKey[nToken+1] = '\0';
+    p->nData = nToken+1 + 1 + sizeof(Fts5HashEntry);
    p->pHashNext = pHash->aSlot[iHash];
    pHash->aSlot[iHash] = p;
    pHash->nEntry++;
@ -393,9 +398,11 @@ static Fts5HashEntry *fts5HashEntryMerge(
      p1 = 0;
    }else{
      int i = 0;
-      while( p1->zKey[i]==p2->zKey[i] ) i++;
+      char *zKey1 = fts5EntryKey(p1);
+      char *zKey2 = fts5EntryKey(p2);
+      while( zKey1[i]==zKey2[i] ) i++;

-      if( ((u8)p1->zKey[i])>((u8)p2->zKey[i]) ){
+      if( ((u8)zKey1[i])>((u8)zKey2[i]) ){
        /* p2 is smaller */
        *ppOut = p2;
        ppOut = &p2->pScanNext;
@ -438,7 +445,7 @@ static int fts5HashEntrySort(
  for(iSlot=0; iSlot<pHash->nSlot; iSlot++){
    Fts5HashEntry *pIter;
    for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){
-      if( pTerm==0 || 0==memcmp(pIter->zKey, pTerm, nTerm) ){
+      if( pTerm==0 || 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm) ){
        Fts5HashEntry *pEntry = pIter;
        pEntry->pScanNext = 0;
        for(i=0; ap[i]; i++){
@ -471,16 +478,18 @@ int sqlite3Fts5HashQuery(
  int *pnDoclist                  /* OUT: Size of doclist in bytes */
 ){
  unsigned int iHash = fts5HashKey(pHash->nSlot, (const u8*)pTerm, nTerm);
+  char *zKey = 0;
  Fts5HashEntry *p;

  for(p=pHash->aSlot[iHash]; p; p=p->pHashNext){
-    if( memcmp(p->zKey, pTerm, nTerm)==0 && p->zKey[nTerm]==0 ) break;
+    zKey = fts5EntryKey(p);
+    if( memcmp(zKey, pTerm, nTerm)==0 && zKey[nTerm]==0 ) break;
  }

  if( p ){
    fts5HashAddPoslistSize(pHash, p);
-    *ppDoclist = (const u8*)&p->zKey[nTerm+1];
-    *pnDoclist = p->nData - (FTS5_HASHENTRYSIZE + nTerm + 1);
+    *ppDoclist = (const u8*)&zKey[nTerm+1];
+    *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm + 1);
  }else{
    *ppDoclist = 0;
    *pnDoclist = 0;
@ -513,11 +522,12 @@ void sqlite3Fts5HashScanEntry(
 ){
  Fts5HashEntry *p;
  if( (p = pHash->pScan) ){
-    int nTerm = (int)strlen(p->zKey);
+    char *zKey = fts5EntryKey(p);
+    int nTerm = (int)strlen(zKey);
    fts5HashAddPoslistSize(pHash, p);
-    *pzTerm = p->zKey;
-    *ppDoclist = (const u8*)&p->zKey[nTerm+1];
-    *pnDoclist = p->nData - (FTS5_HASHENTRYSIZE + nTerm + 1);
+    *pzTerm = zKey;
+    *ppDoclist = (const u8*)&zKey[nTerm+1];
+    *pnDoclist = p->nData - (sizeof(Fts5HashEntry) + nTerm + 1);
  }else{
    *pzTerm = 0;
    *ppDoclist = 0;
--- a/ext/fts5/fts5_index.c
+++ b/ext/fts5/fts5_index.c
@ -728,7 +728,8 @@ static int fts5IndexPrepareStmt(
 ){
  if( p->rc==SQLITE_OK ){
    if( zSql ){
-      p->rc = sqlite3_prepare_v2(p->pConfig->db, zSql, -1, ppStmt, 0);
+      p->rc = sqlite3_prepare_v3(p->pConfig->db, zSql, -1,
+                                 SQLITE_PREPARE_PERSISTENT, ppStmt, 0);
    }else{
      p->rc = SQLITE_NOMEM;
    }
@ -777,7 +778,8 @@ static void fts5DataDelete(Fts5Index *p, i64 iFirst, i64 iLast){
    if( zSql==0 ){
      rc = SQLITE_NOMEM;
    }else{
-      rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &p->pDeleter, 0);
+      rc = sqlite3_prepare_v3(pConfig->db, zSql, -1,
+                              SQLITE_PREPARE_PERSISTENT, &p->pDeleter, 0);
      sqlite3_free(zSql);
    }
    if( rc!=SQLITE_OK ){
@ -5093,7 +5095,7 @@ static void fts5SetupPrefixIter(
    if( pData ){
      pData->p = (u8*)&pData[1];
      pData->nn = pData->szLeaf = doclist.n;
-      memcpy(pData->p, doclist.p, doclist.n);
+      if( doclist.n ) memcpy(pData->p, doclist.p, doclist.n);
      fts5MultiIterNew2(p, pData, bDesc, ppIter);
    }
    fts5BufferFree(&doclist);
@ -5332,7 +5334,7 @@ int sqlite3Fts5IndexQuery(

  if( sqlite3Fts5BufferSize(&p->rc, &buf, nToken+1)==0 ){
    int iIdx = 0;                 /* Index to search */
-    memcpy(&buf.p[1], pToken, nToken);
+    if( nToken ) memcpy(&buf.p[1], pToken, nToken);

    /* Figure out which index to search and set iIdx accordingly. If this
    ** is a prefix query for which there is no prefix index, set iIdx to
@ -5381,7 +5383,7 @@ int sqlite3Fts5IndexQuery(
    }

    if( p->rc ){
-      sqlite3Fts5IterClose(&pRet->base);
+      sqlite3Fts5IterClose((Fts5IndexIter*)pRet);
      pRet = 0;
      fts5CloseReader(p);
    }
--- a/ext/fts5/fts5_main.c
+++ b/ext/fts5/fts5_main.c
@ -883,7 +883,8 @@ static int fts5PrepareStatement(
  if( zSql==0 ){
    rc = SQLITE_NOMEM; 
  }else{
-    rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &pRet, 0);
+    rc = sqlite3_prepare_v3(pConfig->db, zSql, -1, 
+                            SQLITE_PREPARE_PERSISTENT, &pRet, 0);
    if( rc!=SQLITE_OK ){
      *pConfig->pzErrmsg = sqlite3_mprintf("%s", sqlite3_errmsg(pConfig->db));
    }
@ -1019,7 +1020,8 @@ static int fts5FindRankFunction(Fts5Cursor *pCsr){
    char *zSql = sqlite3Fts5Mprintf(&rc, "SELECT %s", zRankArgs);
    if( zSql ){
      sqlite3_stmt *pStmt = 0;
-      rc = sqlite3_prepare_v2(pConfig->db, zSql, -1, &pStmt, 0);
+      rc = sqlite3_prepare_v3(pConfig->db, zSql, -1,
+                              SQLITE_PREPARE_PERSISTENT, &pStmt, 0);
      sqlite3_free(zSql);
      assert( rc==SQLITE_OK || pCsr->pRankArgStmt==0 );
      if( rc==SQLITE_OK ){
@ -2607,15 +2609,14 @@ static void fts5ModuleDestroy(void *pCtx){
 static void fts5Fts5Func(
  sqlite3_context *pCtx,          /* Function call context */
  int nArg,                       /* Number of args */
-  sqlite3_value **apUnused        /* Function arguments */
+  sqlite3_value **apArg           /* Function arguments */
 ){
  Fts5Global *pGlobal = (Fts5Global*)sqlite3_user_data(pCtx);
-  char buf[8];
-  UNUSED_PARAM2(nArg, apUnused);
-  assert( nArg==0 );
-  assert( sizeof(buf)>=sizeof(pGlobal) );
-  memcpy(buf, (void*)&pGlobal, sizeof(pGlobal));
-  sqlite3_result_blob(pCtx, buf, sizeof(pGlobal), SQLITE_TRANSIENT);
+  fts5_api **ppApi;
+  UNUSED_PARAM(nArg);
+  assert( nArg==1 );
+  ppApi = (fts5_api**)sqlite3_value_pointer(apArg[0], "fts5_api_ptr");
+  if( ppApi ) *ppApi = &pGlobal->api;
 }

 /*
@ -2680,7 +2681,7 @@ static int fts5Init(sqlite3 *db){
    if( rc==SQLITE_OK ) rc = sqlite3Fts5VocabInit(pGlobal, db);
    if( rc==SQLITE_OK ){
      rc = sqlite3_create_function(
-          db, "fts5", 0, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
+          db, "fts5", 1, SQLITE_UTF8, p, fts5Fts5Func, 0, 0
      );
    }
    if( rc==SQLITE_OK ){
--- a/ext/fts5/fts5_storage.c
+++ b/ext/fts5/fts5_storage.c
@ -136,7 +136,8 @@ static int fts5StorageGetStmt(
    if( zSql==0 ){
      rc = SQLITE_NOMEM;
    }else{
-      rc = sqlite3_prepare_v2(pC->db, zSql, -1, &p->aStmt[eStmt], 0);
+      rc = sqlite3_prepare_v3(pC->db, zSql, -1,
+                              SQLITE_PREPARE_PERSISTENT, &p->aStmt[eStmt], 0);
      sqlite3_free(zSql);
      if( rc!=SQLITE_OK && pzErrMsg ){
        *pzErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pC->db));
--- a/ext/fts5/fts5_tcl.c
+++ b/ext/fts5/fts5_tcl.c
@ -99,16 +99,13 @@ static int SQLITE_TCLAPI f5tDbAndApi(
    sqlite3_stmt *pStmt = 0;
    fts5_api *pApi = 0;

-    rc = sqlite3_prepare_v2(db, "SELECT fts5()", -1, &pStmt, 0);
+    rc = sqlite3_prepare_v2(db, "SELECT fts5(?1)", -1, &pStmt, 0);
    if( rc!=SQLITE_OK ){
      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), 0);
      return TCL_ERROR;
    }
-
-    if( SQLITE_ROW==sqlite3_step(pStmt) ){
-      const void *pPtr = sqlite3_column_blob(pStmt, 0);
-      memcpy((void*)&pApi, pPtr, sizeof(pApi));
-    }
+    sqlite3_bind_pointer(pStmt, 1, (void*)&pApi, "fts5_api_ptr", 0);
+    sqlite3_step(pStmt);

    if( sqlite3_finalize(pStmt)!=SQLITE_OK ){
      Tcl_AppendResult(interp, "error: ", sqlite3_errmsg(db), 0);
--- a/ext/fts5/fts5_test_mi.c
+++ b/ext/fts5/fts5_test_mi.c
@ -73,13 +73,10 @@ static int fts5_api_from_db(sqlite3 *db, fts5_api **ppApi){
  int rc;

  *ppApi = 0;
-  rc = sqlite3_prepare(db, "SELECT fts5()", -1, &pStmt, 0);
+  rc = sqlite3_prepare(db, "SELECT fts5(?1)", -1, &pStmt, 0);
  if( rc==SQLITE_OK ){
-    if( SQLITE_ROW==sqlite3_step(pStmt) 
-        && sizeof(fts5_api*)==sqlite3_column_bytes(pStmt, 0)
-      ){
-      memcpy(ppApi, sqlite3_column_blob(pStmt, 0), sizeof(fts5_api*));
-    }
+    sqlite3_bind_pointer(pStmt, 1, (void*)ppApi, "fts5_api_ptr", 0);
+    (void)sqlite3_step(pStmt);
    rc = sqlite3_finalize(pStmt);
  }

@ -422,4 +419,3 @@ int sqlite3Fts5TestRegisterMatchinfo(sqlite3 *db){
 }

 #endif /* SQLITE_ENABLE_FTS5 */
-
--- a/ext/fts5/fts5_test_tok.c
+++ b/ext/fts5/fts5_test_tok.c
@ -182,7 +182,7 @@ static int fts5tokConnectMethod(
  Fts5tokTable *pTab = 0;
  int rc;
  char **azDequote = 0;
-  int nDequote;
+  int nDequote = 0;

  rc = sqlite3_declare_vtab(db, 
       "CREATE TABLE x(input HIDDEN, token, start, end, position)"
--- a/ext/fts5/fts5_vocab.c
+++ b/ext/fts5/fts5_vocab.c
@ -29,6 +29,11 @@
 **   the number of fts5 rows that contain at least one instance of term
 **   $term. Field $cnt is set to the total number of instances of term 
 **   $term in the database.
+**
+** instance:
+**     CREATE TABLE vocab(term, doc, col, offset, PRIMARY KEY(<all-fields>));
+**
+**   One row for each term instance in the database. 
 */


@ -44,7 +49,7 @@ struct Fts5VocabTable {
  char *zFts5Db;                  /* Db containing fts5 table */
  sqlite3 *db;                    /* Database handle */
  Fts5Global *pGlobal;            /* FTS5 global object for this database */
-  int eType;                      /* FTS5_VOCAB_COL or ROW */
+  int eType;                      /* FTS5_VOCAB_COL, ROW or INSTANCE */
 };

 struct Fts5VocabCursor {
@ -64,16 +69,22 @@ struct Fts5VocabCursor {
  i64 *aCnt;
  i64 *aDoc;

-  /* Output values used by 'row' and 'col' tables */
+  /* Output values used by all tables. */
  i64 rowid;                      /* This table's current rowid value */
  Fts5Buffer term;                /* Current value of 'term' column */
+
+  /* Output values Used by 'instance' tables only */
+  i64 iInstPos;
+  int iInstOff;
 };

 #define FTS5_VOCAB_COL      0
 #define FTS5_VOCAB_ROW      1
+#define FTS5_VOCAB_INSTANCE 2

 #define FTS5_VOCAB_COL_SCHEMA  "term, col, doc, cnt"
 #define FTS5_VOCAB_ROW_SCHEMA  "term, doc, cnt"
+#define FTS5_VOCAB_INST_SCHEMA "term, doc, col, offset"

 /*
 ** Bits for the mask used as the idxNum value by xBestIndex/xFilter.
@ -101,6 +112,9 @@ static int fts5VocabTableType(const char *zType, char **pzErr, int *peType){
    if( sqlite3_stricmp(zCopy, "row")==0 ){
      *peType = FTS5_VOCAB_ROW;
    }else
+    if( sqlite3_stricmp(zCopy, "instance")==0 ){
+      *peType = FTS5_VOCAB_INSTANCE;
+    }else
    {
      *pzErr = sqlite3_mprintf("fts5vocab: unknown table type: %Q", zCopy);
      rc = SQLITE_ERROR;
@ -161,7 +175,8 @@ static int fts5VocabInitVtab(
 ){
  const char *azSchema[] = { 
    "CREATE TABlE vocab(" FTS5_VOCAB_COL_SCHEMA  ")", 
-    "CREATE TABlE vocab(" FTS5_VOCAB_ROW_SCHEMA  ")"
+    "CREATE TABlE vocab(" FTS5_VOCAB_ROW_SCHEMA  ")",
+    "CREATE TABlE vocab(" FTS5_VOCAB_INST_SCHEMA ")"
  };

  Fts5VocabTable *pRet = 0;
@ -235,6 +250,15 @@ static int fts5VocabCreateMethod(

 /* 
 ** Implementation of the xBestIndex method.
+**
+** Only constraints of the form:
+**
+**     term <= ?
+**     term == ?
+**     term >= ?
+**
+** are interpreted. Less-than and less-than-or-equal are treated 
+** identically, as are greater-than and greater-than-or-equal.
 */
 static int fts5VocabBestIndexMethod(
  sqlite3_vtab *pUnused,
@ -378,6 +402,54 @@ static int fts5VocabCloseMethod(sqlite3_vtab_cursor *pCursor){
  return SQLITE_OK;
 }

+static int fts5VocabInstanceNewTerm(Fts5VocabCursor *pCsr){
+  int rc = SQLITE_OK;
+  
+  if( sqlite3Fts5IterEof(pCsr->pIter) ){
+    pCsr->bEof = 1;
+  }else{
+    const char *zTerm;
+    int nTerm;
+    zTerm = sqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
+    if( pCsr->nLeTerm>=0 ){
+      int nCmp = MIN(nTerm, pCsr->nLeTerm);
+      int bCmp = memcmp(pCsr->zLeTerm, zTerm, nCmp);
+      if( bCmp<0 || (bCmp==0 && pCsr->nLeTerm<nTerm) ){
+        pCsr->bEof = 1;
+      }
+    }
+
+    sqlite3Fts5BufferSet(&rc, &pCsr->term, nTerm, (const u8*)zTerm);
+  }
+  return rc;
+}
+
+static int fts5VocabInstanceNext(Fts5VocabCursor *pCsr){
+  int eDetail = pCsr->pConfig->eDetail;
+  int rc = SQLITE_OK;
+  Fts5IndexIter *pIter = pCsr->pIter;
+  i64 *pp = &pCsr->iInstPos;
+  int *po = &pCsr->iInstOff;
+  
+  while( eDetail==FTS5_DETAIL_NONE
+      || sqlite3Fts5PoslistNext64(pIter->pData, pIter->nData, po, pp) 
+  ){
+    pCsr->iInstPos = 0;
+    pCsr->iInstOff = 0;
+
+    rc = sqlite3Fts5IterNextScan(pCsr->pIter);
+    if( rc==SQLITE_OK ){
+      rc = fts5VocabInstanceNewTerm(pCsr);
+      if( eDetail==FTS5_DETAIL_NONE ) break;
+    }
+    if( rc ){
+      pCsr->bEof = 1;
+      break;
+    }
+  }
+
+  return rc;
+}

 /*
 ** Advance the cursor to the next row in the table.
@ -390,13 +462,17 @@ static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){

  pCsr->rowid++;

+  if( pTab->eType==FTS5_VOCAB_INSTANCE ){
+    return fts5VocabInstanceNext(pCsr);
+  }
+
  if( pTab->eType==FTS5_VOCAB_COL ){
    for(pCsr->iCol++; pCsr->iCol<nCol; pCsr->iCol++){
      if( pCsr->aDoc[pCsr->iCol] ) break;
    }
  }

-  if( pTab->eType==FTS5_VOCAB_ROW || pCsr->iCol>=nCol ){
+  if( pTab->eType!=FTS5_VOCAB_COL || pCsr->iCol>=nCol ){
    if( sqlite3Fts5IterEof(pCsr->pIter) ){
      pCsr->bEof = 1;
    }else{
@ -420,22 +496,26 @@ static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){

      assert( pTab->eType==FTS5_VOCAB_COL || pTab->eType==FTS5_VOCAB_ROW );
      while( rc==SQLITE_OK ){
+        int eDetail = pCsr->pConfig->eDetail;
        const u8 *pPos; int nPos;   /* Position list */
        i64 iPos = 0;               /* 64-bit position read from poslist */
        int iOff = 0;               /* Current offset within position list */

        pPos = pCsr->pIter->pData;
        nPos = pCsr->pIter->nData;
-        switch( pCsr->pConfig->eDetail ){
-          case FTS5_DETAIL_FULL:
-            pPos = pCsr->pIter->pData;
-            nPos = pCsr->pIter->nData;
-            if( pTab->eType==FTS5_VOCAB_ROW ){
+
+        switch( pTab->eType ){
+          case FTS5_VOCAB_ROW:
+            if( eDetail==FTS5_DETAIL_FULL ){
              while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
                pCsr->aCnt[0]++;
              }
+            }
            pCsr->aDoc[0]++;
-            }else{
+            break;
+
+          case FTS5_VOCAB_COL:
+            if( eDetail==FTS5_DETAIL_FULL ){
              int iCol = -1;
              while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff, &iPos) ){
                int ii = FTS5_POS2COLUMN(iPos);
@ -449,13 +529,7 @@ static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){
                  iCol = ii;
                }
              }
-            }
-            break;
-
-          case FTS5_DETAIL_COLUMNS:
-            if( pTab->eType==FTS5_VOCAB_ROW ){
-              pCsr->aDoc[0]++;
-            }else{
+            }else if( eDetail==FTS5_DETAIL_COLUMNS ){
              while( 0==sqlite3Fts5PoslistNext64(pPos, nPos, &iOff,&iPos) ){
                assert_nc( iPos>=0 && iPos<nCol );
                if( iPos>=nCol ){
@ -464,18 +538,21 @@ static int fts5VocabNextMethod(sqlite3_vtab_cursor *pCursor){
                }
                pCsr->aDoc[iPos]++;
              }
+            }else{
+              assert( eDetail==FTS5_DETAIL_NONE );
+              pCsr->aDoc[0]++;
            }
            break;

          default:
-            assert( pCsr->pConfig->eDetail==FTS5_DETAIL_NONE );
-            pCsr->aDoc[0]++;
+            assert( pTab->eType==FTS5_VOCAB_INSTANCE );
            break;
        }

        if( rc==SQLITE_OK ){
          rc = sqlite3Fts5IterNextScan(pCsr->pIter);
        }
+        if( pTab->eType==FTS5_VOCAB_INSTANCE ) break;

        if( rc==SQLITE_OK ){
          zTerm = sqlite3Fts5IterTerm(pCsr->pIter, &nTerm);
@ -505,7 +582,9 @@ static int fts5VocabFilterMethod(
  int nUnused,                    /* Number of elements in apVal */
  sqlite3_value **apVal           /* Arguments for the indexing scheme */
 ){
+  Fts5VocabTable *pTab = (Fts5VocabTable*)pCursor->pVtab;
  Fts5VocabCursor *pCsr = (Fts5VocabCursor*)pCursor;
+  int eType = pTab->eType;
  int rc = SQLITE_OK;

  int iVal = 0;
@ -545,11 +624,16 @@ static int fts5VocabFilterMethod(
    }
  }

-
  if( rc==SQLITE_OK ){
    rc = sqlite3Fts5IndexQuery(pCsr->pIndex, zTerm, nTerm, f, 0, &pCsr->pIter);
  }
-  if( rc==SQLITE_OK ){
+  if( rc==SQLITE_OK && eType==FTS5_VOCAB_INSTANCE ){
+    rc = fts5VocabInstanceNewTerm(pCsr);
+  }
+  if( rc==SQLITE_OK 
+   && !pCsr->bEof 
+   && (eType!=FTS5_VOCAB_INSTANCE || pCsr->pConfig->eDetail!=FTS5_DETAIL_NONE)
+  ){
    rc = fts5VocabNextMethod(pCursor);
  }

@ -591,13 +675,41 @@ static int fts5VocabColumnMethod(
    }else{
      iVal = pCsr->aCnt[pCsr->iCol];
    }
-  }else{
+  }else if( eType==FTS5_VOCAB_ROW ){
    assert( iCol==1 || iCol==2 );
    if( iCol==1 ){
      iVal = pCsr->aDoc[0];
    }else{
      iVal = pCsr->aCnt[0];
    }
+  }else{
+    assert( eType==FTS5_VOCAB_INSTANCE );
+    switch( iCol ){
+      case 1:
+        sqlite3_result_int64(pCtx, pCsr->pIter->iRowid);
+        break;
+      case 2: {
+        int ii = -1;
+        if( eDetail==FTS5_DETAIL_FULL ){
+          ii = FTS5_POS2COLUMN(pCsr->iInstPos);
+        }else if( eDetail==FTS5_DETAIL_COLUMNS ){
+          ii = (int)pCsr->iInstPos;
+        }
+        if( ii>=0 && ii<pCsr->pConfig->nCol ){
+          const char *z = pCsr->pConfig->azCol[ii];
+          sqlite3_result_text(pCtx, z, -1, SQLITE_STATIC);
+        }
+        break;
+      }
+      default: {
+        assert( iCol==3 );
+        if( eDetail==FTS5_DETAIL_FULL ){
+          int ii = FTS5_POS2OFFSET(pCsr->iInstPos);
+          sqlite3_result_int(pCtx, ii);
+        }
+        break;
+      }
+    }
  }

  if( iVal>0 ) sqlite3_result_int64(pCtx, iVal);
--- a/ext/fts5/test/fts5aa.test
+++ b/ext/fts5/test/fts5aa.test
@ -441,7 +441,7 @@ db func funk funk
 do_catchsql_test 16.2 {
  SELECT funk(), bm25(n1), funk() FROM n1 WHERE n1 MATCH 'a+b+c+d'
 } {0 {{} -1e-06 {}}}
-# {1 {SQL logic error or missing database}}
+# {1 {SQL logic error}}

 #-------------------------------------------------------------------------
 #
@ -595,5 +595,3 @@ do_execsql_test 22.1 {


 finish_test
-
-
--- a/ext/fts5/test/fts5ab.test
+++ b/ext/fts5/test/fts5ab.test
@ -294,4 +294,3 @@ do_execsql_test 7.0 {


 finish_test
-
--- a/ext/fts5/test/fts5ac.test
+++ b/ext/fts5/test/fts5ac.test
@ -276,4 +276,3 @@ foreach {tn expr tclexpr} {
 }

 finish_test
-
--- a/ext/fts5/test/fts5ad.test
+++ b/ext/fts5/test/fts5ad.test
@ -231,7 +231,6 @@ foreach {T create} {
        set res [lsort -integer -increasing $res]
      }
      set n [llength $res]
-      if {$T==5} breakpoint 
      do_execsql_test $T.$bAsc.$tn.$n $sql $res
    }
  }
@ -242,4 +241,3 @@ foreach {T create} {
 }

 finish_test
-
--- a/ext/fts5/test/fts5ae.test
+++ b/ext/fts5/test/fts5ae.test
@ -309,4 +309,3 @@ foreach {tn q cnt} {
 }

 finish_test
-
--- a/ext/fts5/test/fts5af.test
+++ b/ext/fts5/test/fts5af.test
@ -178,4 +178,3 @@ do_execsql_test 5.1 {
 } ;# foreach_detail_mode 

 finish_test
-
--- a/ext/fts5/test/fts5ag.test
+++ b/ext/fts5/test/fts5ag.test
@ -142,4 +142,3 @@ if {[detail_is_full]} {


 finish_test
-
--- a/ext/fts5/test/fts5ah.test
+++ b/ext/fts5/test/fts5ah.test
@ -167,4 +167,3 @@ do_execsql_test 1.8.2 {
 #db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM t1_data} {puts $r}

 finish_test
-
--- a/ext/fts5/test/fts5ai.test
+++ b/ext/fts5/test/fts5ai.test
@ -55,4 +55,3 @@ do_execsql_test 1.2 {


 finish_test
-
--- a/ext/fts5/test/fts5aj.test
+++ b/ext/fts5/test/fts5aj.test
@ -66,4 +66,3 @@ do_execsql_test 2.0 { INSERT INTO t1(t1) VALUES('integrity-check') }


 finish_test
-
--- a/ext/fts5/test/fts5ak.test
+++ b/ext/fts5/test/fts5ak.test
@ -147,4 +147,3 @@ do_execsql_test 3.1 {
 }

 finish_test
-
--- a/ext/fts5/test/fts5al.test
+++ b/ext/fts5/test/fts5al.test
@ -77,7 +77,7 @@ foreach {tn defn} {
 } {
  do_test 2.2.$tn {
    catchsql { INSERT INTO ft1(ft1, rank) VALUES('rank', $defn) }
-  } {1 {SQL logic error or missing database}}
+  } {1 {SQL logic error}}
 }

 #-------------------------------------------------------------------------
@ -297,4 +297,3 @@ do_catchsql_test 4.4.4 {


 finish_test
-
--- a/ext/fts5/test/fts5alter.test
+++ b/ext/fts5/test/fts5alter.test
@ -89,7 +89,6 @@ do_execsql_test 3.1 {
  BEGIN;
    INSERT INTO abc(rowid, a) VALUES(2, 'a');
 }
-breakpoint
 do_execsql_test 3.2 {
    SELECT rowid FROM abc WHERE abc MATCH 'a';
 } {1 2}
@ -100,4 +99,3 @@ do_execsql_test 3.3 {
 } {1 2}

 finish_test
-
--- a/ext/fts5/test/fts5auto.test
+++ b/ext/fts5/test/fts5auto.test
@ -342,4 +342,3 @@ foreach {tn expr} {


 finish_test
-
--- a/ext/fts5/test/fts5aux.test
+++ b/ext/fts5/test/fts5aux.test
@ -240,7 +240,6 @@ foreach {tn lRow res} {
 } {
  execsql { DELETE FROM x1 }
  foreach row $lRow { execsql { INSERT INTO x1 VALUES($row) } }
-  breakpoint
  do_execsql_test 8.$tn {
    SELECT highlight(x1, 0, '[', ']') FROM x1 WHERE x1 MATCH 'a OR (b AND d)';
  } $res
@ -279,4 +278,3 @@ do_execsql_test 9.3 {


 finish_test
-
--- a/ext/fts5/test/fts5auxdata.test
+++ b/ext/fts5/test/fts5auxdata.test
@ -112,4 +112,3 @@ db eval {
 }

 finish_test
-
--- a/ext/fts5/test/fts5bigpl.test
+++ b/ext/fts5/test/fts5bigpl.test
@ -61,4 +61,3 @@ do_test 2.1...slow {
 } {}

 finish_test
-
--- a/ext/fts5/test/fts5bigtok.test
+++ b/ext/fts5/test/fts5bigtok.test
@ -64,5 +64,3 @@ foreach_detail_mode $::testprefix {
 }

 finish_test
-
-
--- a/ext/fts5/test/fts5colset.test
+++ b/ext/fts5/test/fts5colset.test
@ -84,5 +84,3 @@ foreach_detail_mode $::testprefix {


 finish_test
-
-
--- a/ext/fts5/test/fts5columnsize.test
+++ b/ext/fts5/test/fts5columnsize.test
@ -143,7 +143,6 @@ do_execsql_test 4.1.1 {
  INSERT INTO t5 VALUES('2 4 6 8');
 }

-breakpoint
 do_execsql_test 4.1.2 {
  INSERT INTO t5(t5) VALUES('integrity-check');
 }
--- a/ext/fts5/test/fts5config.test
+++ b/ext/fts5/test/fts5config.test
@ -66,7 +66,7 @@ foreach {tn val} {
 } {
  do_catchsql_test 3.$tn {
    INSERT INTO t1(t1, rank) VALUES('rank', $val);
-  } {1 {SQL logic error or missing database}}
+  } {1 {SQL logic error}}
 }

 #-------------------------------------------------------------------------
@ -110,7 +110,6 @@ do_catchsql_test 5.1 {
  CREATE VIRTUAL TABLE xx USING fts5(x, tokenize="porter 'ascii");
 } {1 {parse error in tokenize directive}} 

-breakpoint
 do_catchsql_test 5.2 {
  CREATE VIRTUAL TABLE xx USING fts5(x, [y[]);
 } {0 {}}
@ -169,33 +168,33 @@ do_execsql_test 9.0 {
 } {}
 do_catchsql_test 9.1.1 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', -5);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.1.2 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', 50000000);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.1.3 {
  INSERT INTO abc(abc, rank) VALUES('pgsz', 66.67);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}

 do_catchsql_test 9.2.1 {
  INSERT INTO abc(abc, rank) VALUES('automerge', -5);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.2.2 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 50000000);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.2.3 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 66.67);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_execsql_test 9.2.4 {
  INSERT INTO abc(abc, rank) VALUES('automerge', 1);
 } {}

 do_catchsql_test 9.3.1 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', -5);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.3.2 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', 66.67);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_execsql_test 9.3.3 {
  INSERT INTO abc(abc, rank) VALUES('crisismerge', 1);
 } {}
@ -205,14 +204,14 @@ do_execsql_test 9.3.4 {

 do_catchsql_test 9.4.1 {
  INSERT INTO abc(abc, rank) VALUES('nosuchoption', 1);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}

 do_catchsql_test 9.5.1 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', 'not an integer');
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.5.2 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', -500000);
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}
 do_catchsql_test 9.5.3 {
  INSERT INTO abc(abc, rank) VALUES('hashsize', 500000);
 } {0 {}}
@ -245,7 +244,7 @@ foreach {tn opt} {

 do_catchsql_test 12.1 {
  INSERT INTO t1(t1, rank) VALUES('rank', NULL);;
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}

 #-------------------------------------------------------------------------
 # errors in the 'usermerge' option
@ -260,8 +259,7 @@ foreach {tn val} {
  4     1
 } {
  set sql "INSERT INTO tt(tt, rank) VALUES('usermerge', $val)"
-  do_catchsql_test 13.$tn $sql {1 {SQL logic error or missing database}}
+  do_catchsql_test 13.$tn $sql {1 {SQL logic error}}
 }

 finish_test
-
--- a/ext/fts5/test/fts5conflict.test
+++ b/ext/fts5/test/fts5conflict.test
@ -66,5 +66,3 @@ do_execsql_test 2.1 {
 }

 finish_test
-
-
--- a/ext/fts5/test/fts5connect.test
+++ b/ext/fts5/test/fts5connect.test
@ -0,0 +1,247 @@
+# 2017 August 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+#
+
+
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5connect
+
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# The tests in this file test the outcome of a schema-reset happening 
+# within the xConnect() method of an FTS5 table. At one point this
+# was causing a problem in SQLite. Each test proceeds as follows:
+#
+#   1. Connection [db] opens the db and reads from some unrelated, non-FTS5
+#      table causing SQLite to load the db schema into memory.
+#
+#   2. Connection [db2] opens the db and modifies the db schema.
+#
+#   3. Connection [db] reads or writes an existing fts5 table. That the
+#      schema has been modified is detected inside the fts5 xConnect() 
+#      callback that is invoked by sqlite3_prepare(). 
+#
+#   4. Verify that the statement in 3 has worked. SQLite should detect
+#      that the schema has changed and successfully prepare the 
+#      statement against the new schema.
+#
+# Test plan:
+#
+#   1.*: Trigger the xConnect()/schema-reset using statements executed
+#        directly against an FTS5 table.
+#
+#   2.*: Using various statements executed by various BEFORE triggers.
+#
+#   3.*: Using various statements executed by various AFTER triggers.
+#
+#   4.*: Using various statements executed by various INSTEAD OF triggers.
+#
+
+
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE ft1 USING fts5(a, b);
+  CREATE TABLE abc(x INTEGER PRIMARY KEY);
+  CREATE TABLE t1(i INTEGER PRIMARY KEY, a, b);
+
+  INSERT INTO ft1 VALUES('one', 'two');
+  INSERT INTO ft1 VALUES('three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM ft1" {one two three four}
+  2 "REPLACE INTO ft1(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft1" {five six three four}
+  4 "INSERT INTO ft1 VALUES('seven', 'eight')" {}
+  5 "SELECT * FROM ft1" {five six three four seven eight}
+  6 "DELETE FROM ft1 WHERE rowid=2" {}
+  7 "UPDATE ft1 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft1" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 1.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 1.$tn.2 $sql $res
+
+  do_execsql_test 1.$tn.3 {
+    INSERT INTO ft1(ft1) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 2.0 {
+  CREATE VIRTUAL TABLE ft2 USING fts5(a, b);
+  CREATE TABLE t2(a, b);
+  CREATE TABLE log(txt);
+
+  CREATE TRIGGER t2_ai AFTER INSERT ON t2 BEGIN
+    INSERT INTO ft2(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t2_ad AFTER DELETE ON t2 BEGIN
+    DELETE FROM ft2 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t2_au AFTER UPDATE ON t2 BEGIN
+    UPDATE ft2 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO t2 VALUES('one', 'two');
+  INSERT INTO t2 VALUES('three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM t2" {one two three four}
+  2 "REPLACE INTO t2(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft2" {five six three four}
+  4 "INSERT INTO t2 VALUES('seven', 'eight')" {}
+  5 "SELECT * FROM ft2" {five six three four seven eight}
+  6 "DELETE FROM t2 WHERE rowid=2" {}
+  7 "UPDATE t2 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft2" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 2.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 2.$tn.2 $sql $res
+
+  do_execsql_test 2.$tn.3 {
+    INSERT INTO ft2(ft2) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 3.0 {
+  CREATE VIRTUAL TABLE ft3 USING fts5(a, b);
+  CREATE TABLE t3(a, b);
+
+  CREATE TRIGGER t3_ai BEFORE INSERT ON t3 BEGIN
+    INSERT INTO ft3(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t3_ad BEFORE DELETE ON t3 BEGIN
+    DELETE FROM ft3 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t3_au BEFORE UPDATE ON t3 BEGIN
+    UPDATE ft3 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO t3(rowid, a, b) VALUES(1, 'one', 'two');
+  INSERT INTO t3(rowid, a, b) VALUES(2, 'three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM t3" {one two three four}
+  2 "REPLACE INTO t3(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft3" {five six three four}
+  4 "INSERT INTO t3(rowid, a, b) VALUES(3, 'seven', 'eight')" {}
+  5 "SELECT * FROM ft3" {five six three four seven eight}
+  6 "DELETE FROM t3 WHERE rowid=2" {}
+  7 "UPDATE t3 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft3" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 3.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 3.$tn.2 $sql $res
+
+  do_execsql_test 3.$tn.3 {
+    INSERT INTO ft3(ft3) VALUES('integrity-check');
+  }
+}
+
+do_execsql_test 4.0 {
+  CREATE VIRTUAL TABLE ft4 USING fts5(a, b);
+  CREATE VIEW v4 AS SELECT rowid, * FROM ft4;
+
+  CREATE TRIGGER t4_ai INSTEAD OF INSERT ON v4 BEGIN
+    INSERT INTO ft4(rowid, a, b) VALUES(new.rowid, new.a, new.b);
+    INSERT INTO log VALUES('insert');
+  END;
+
+  CREATE TRIGGER t4_ad INSTEAD OF DELETE ON v4 BEGIN
+    DELETE FROM ft4 WHERE rowid = old.rowid;
+    INSERT INTO log VALUES('delete');
+  END;
+
+  CREATE TRIGGER t4_au INSTEAD OF UPDATE ON v4 BEGIN
+    UPDATE ft4 SET a=new.a, b=new.b WHERE rowid=new.rowid;
+    INSERT INTO log VALUES('update');
+  END;
+
+  INSERT INTO ft4(rowid, a, b) VALUES(1, 'one', 'two');
+  INSERT INTO ft4(rowid, a, b) VALUES(2, 'three', 'four');
+}
+
+foreach {tn sql res} {
+  1 "SELECT * FROM ft4" {one two three four}
+  2 "REPLACE INTO v4(rowid, a, b) VALUES(1, 'five', 'six')" {}
+  3 "SELECT * FROM ft4" {five six three four}
+  4 "INSERT INTO v4(rowid, a, b) VALUES(3, 'seven', 'eight')" {}
+  5 "SELECT * FROM ft4" {five six three four seven eight}
+  6 "DELETE FROM v4 WHERE rowid=2" {}
+  7 "UPDATE v4 SET b='nine' WHERE rowid=1" {}
+  8 "SELECT * FROM ft4" {five nine seven eight}
+} {
+
+  catch { db close }
+  catch { db2 close }
+  sqlite3 db  test.db
+  sqlite3 db2 test.db
+
+  do_test 4.$tn.1 {
+    db eval { INSERT INTO abc DEFAULT VALUES }
+    db2 eval { CREATE TABLE newtable(x,y); DROP TABLE newtable }
+  } {}
+
+  do_execsql_test 4.$tn.2 $sql $res
+
+  do_execsql_test 4.$tn.3 {
+    INSERT INTO ft3(ft3) VALUES('integrity-check');
+  }
+}
+
+finish_test
+
--- a/ext/fts5/test/fts5content.test
+++ b/ext/fts5/test/fts5content.test
@ -255,4 +255,3 @@ do_execsql_test 6.2 {


 finish_test
-
--- a/ext/fts5/test/fts5corrupt.test
+++ b/ext/fts5/test/fts5corrupt.test
@ -96,4 +96,3 @@ do_catchsql_test 3.1 {
 } {1 {database disk image is malformed}}

 finish_test
-
--- a/ext/fts5/test/fts5corrupt2.test
+++ b/ext/fts5/test/fts5corrupt2.test
@ -269,4 +269,3 @@ do_catchsql_test 6.2 {

 sqlite3_fts5_may_be_corrupt 0
 finish_test
-
--- a/ext/fts5/test/fts5corrupt3.test
+++ b/ext/fts5/test/fts5corrupt3.test
@ -409,4 +409,3 @@ do_catchsql_test 9.2.2 {

 sqlite3_fts5_may_be_corrupt 0
 finish_test
-
--- a/ext/fts5/test/fts5delete.test
+++ b/ext/fts5/test/fts5delete.test
@ -51,4 +51,3 @@ do_test 1.2 {
 } {}

 finish_test
-
--- a/ext/fts5/test/fts5detail.test
+++ b/ext/fts5/test/fts5detail.test
@ -241,4 +241,3 @@ do_execsql_test 5.3 {


 finish_test
-
--- a/ext/fts5/test/fts5determin.test
+++ b/ext/fts5/test/fts5determin.test
@ -63,5 +63,3 @@ foreach_detail_mode $::testprefix {


 finish_test
-
-
--- a/ext/fts5/test/fts5dlidx.test
+++ b/ext/fts5/test/fts5dlidx.test
@ -66,7 +66,6 @@ proc do_dlidx_test1 {tn spc1 spc2 nEntry iFirst nStep} {
  }
  execsql COMMIT

-  breakpoint
  do_test $tn.1 {
    execsql { INSERT INTO t1(t1) VALUES('integrity-check') }
  } {}
@ -124,7 +123,6 @@ proc do_dlidx_test2 {tn nEntry iFirst nStep} {
  do_execsql_test $tn.1 {
    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a'
  } {1}
-  breakpoint
  do_execsql_test $tn.2 {
    SELECT rowid FROM t1 WHERE t1 MATCH 'b AND a' ORDER BY rowid DESC
  } {1}
@ -197,4 +195,3 @@ foreach v $vocab {


 finish_test
-
--- a/ext/fts5/test/fts5doclist.test
+++ b/ext/fts5/test/fts5doclist.test
@ -44,4 +44,3 @@ do_execsql_test 1.2 {


 finish_test
-
--- a/ext/fts5/test/fts5eb.test
+++ b/ext/fts5/test/fts5eb.test
@ -81,6 +81,3 @@ do_execsql_test 3.3 {


 finish_test
-
-
-
--- a/ext/fts5/test/fts5fault1.test
+++ b/ext/fts5/test/fts5fault1.test
@ -351,4 +351,3 @@ do_faultsim_test 9.1 -faults oom-* -prep {


 finish_test
-
--- a/ext/fts5/test/fts5fault2.test
+++ b/ext/fts5/test/fts5fault2.test
@ -137,4 +137,3 @@ do_faultsim_test 5.0 -faults oom-* -prep {
 }

 finish_test
-
--- a/ext/fts5/test/fts5fault3.test
+++ b/ext/fts5/test/fts5fault3.test
@ -110,4 +110,3 @@ do_faultsim_test 3.2 -faults oom-* -prep {


 finish_test
-
--- a/ext/fts5/test/fts5fault4.test
+++ b/ext/fts5/test/fts5fault4.test
@ -395,4 +395,3 @@ do_faultsim_test 14.1 -faults oom-t* -prep {
 }

 finish_test
-
--- a/ext/fts5/test/fts5fault5.test
+++ b/ext/fts5/test/fts5fault5.test
@ -105,7 +105,6 @@ do_faultsim_test 3.2 -faults oom-t* -body {
  faultsim_test_result {0 {1 10 11 12 13 14 15 16 17 18 19 2}}
 }

-breakpoint
 do_execsql_test 3.3.0 {
  SELECT * FROM tv2;
 } {
@ -130,4 +129,3 @@ do_faultsim_test 3.3 -faults oom-t* -body {


 finish_test
-
--- a/ext/fts5/test/fts5fault6.test
+++ b/ext/fts5/test/fts5fault6.test
@ -280,7 +280,6 @@ do_faultsim_test 5.4 -faults oom* -prep {

 #-------------------------------------------------------------------------
 catch { db close }
-breakpoint
 do_faultsim_test 6 -faults oom* -prep {
  sqlite_orig db test.db
  sqlite3_db_config_lookaside db 0 0 0
@ -292,4 +291,3 @@ do_faultsim_test 6 -faults oom* -prep {
  db close
 }
 finish_test
-
--- a/ext/fts5/test/fts5fault7.test
+++ b/ext/fts5/test/fts5fault7.test
@ -116,4 +116,3 @@ do_faultsim_test 2.2 -faults oom-* -body {
 }

 finish_test
-
--- a/ext/fts5/test/fts5fault8.test
+++ b/ext/fts5/test/fts5fault8.test
@ -82,4 +82,3 @@ do_faultsim_test 4 -faults oom-* -prep {


 finish_test
-
--- a/ext/fts5/test/fts5fault9.test
+++ b/ext/fts5/test/fts5fault9.test
@ -153,4 +153,3 @@ do_faultsim_test 6 -faults oom-* -body {
 } ;# foreach_detail_mode...

 finish_test
-
--- a/ext/fts5/test/fts5faultA.test
+++ b/ext/fts5/test/fts5faultA.test
@ -61,4 +61,3 @@ do_faultsim_test 2 -faults oom* -prep {
  faultsim_test_result {0 {1 2}}
 }
 finish_test
-
--- a/ext/fts5/test/fts5faultB.test
+++ b/ext/fts5/test/fts5faultB.test
@ -132,4 +132,3 @@ do_faultsim_test 4.2 -faults oom* -body {


 finish_test
-
--- a/ext/fts5/test/fts5full.test
+++ b/ext/fts5/test/fts5full.test
@ -40,4 +40,3 @@ do_test 1.1 {


 finish_test
-
--- a/ext/fts5/test/fts5fuzz1.test
+++ b/ext/fts5/test/fts5fuzz1.test
@ -90,4 +90,3 @@ do_catchsql_test 4.1 {
 } {1 {fts5: syntax error near "`"}}

 finish_test
-
--- a/ext/fts5/test/fts5hash.test
+++ b/ext/fts5/test/fts5hash.test
@ -121,7 +121,6 @@ foreach_detail_mode $testprefix {
    }

    execsql { CREATE VIRTUAL TABLE t2 USING fts5(x, detail=%DETAIL%) }
-breakpoint
    execsql {
      INSERT INTO t2 VALUES($small || ' ' || $big);
    }
@ -130,4 +129,3 @@ breakpoint
 } ;# foreach_detail_mode

 finish_test
-
--- a/ext/fts5/test/fts5integrity.test
+++ b/ext/fts5/test/fts5integrity.test
@ -210,4 +210,3 @@ foreach {tn pgsz} {
 }

 finish_test
-
--- a/ext/fts5/test/fts5lastrowid.test
+++ b/ext/fts5/test/fts5lastrowid.test
@ -70,4 +70,3 @@ do_execsql_test 1.6 {


 finish_test
-
--- a/ext/fts5/test/fts5leftjoin.test
+++ b/ext/fts5/test/fts5leftjoin.test
@ -0,0 +1,43 @@
+# 2014 June 17
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#*************************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this script is testing the FTS5 module.
+#
+
+source [file join [file dirname [info script]] fts5_common.tcl]
+set testprefix fts5leftjoin
+
+# If SQLITE_ENABLE_FTS5 is not defined, omit this file.
+ifcapable !fts5 {
+  finish_test
+  return
+}
+
+do_execsql_test 1.0 {
+  CREATE VIRTUAL TABLE vt USING fts5(x);
+  INSERT INTO vt VALUES('abc');
+  INSERT INTO vt VALUES('xyz');
+
+  CREATE TABLE t1(a INTEGER PRIMARY KEY);
+  INSERT INTO t1 VALUES(1), (2);
+}
+
+do_execsql_test 1.1 {
+  SELECT * FROM t1 LEFT JOIN (
+    SELECT rowid AS rrr, * FROM vt WHERE vt MATCH 'abc'
+  ) ON t1.a = rrr
+} {1 1 abc 2 {} {}}
+
+do_execsql_test 1.2 {
+  SELECT * FROM t1 LEFT JOIN vt ON (vt MATCH 'abc')
+} {1 abc 2 abc}
+
+finish_test
--- a/ext/fts5/test/fts5matchinfo.test
+++ b/ext/fts5/test/fts5matchinfo.test
@ -472,7 +472,7 @@ do_execsql_test 12.1 {
 #
 reset_db
 proc xyz {} {}
-db func fts5 -argcount 0 xyz
+db func fts5 -argcount 1 xyz
 do_test 13.1 {
  list [catch { sqlite3_fts5_register_matchinfo db } msg] $msg
 } {1 SQLITE_ERROR}
@ -492,4 +492,3 @@ do_catchsql_test 14.2 {
 } {1 {unrecognized matchinfo flag: d}}

 finish_test
-
--- a/ext/fts5/test/fts5merge.test
+++ b/ext/fts5/test/fts5merge.test
@ -241,4 +241,3 @@ do_execsql_test 6.3 {


 finish_test
-
--- a/ext/fts5/test/fts5merge2.test
+++ b/ext/fts5/test/fts5merge2.test
@ -55,4 +55,3 @@ do_execsql_test 1.2 {
 }

 finish_test
-
--- a/ext/fts5/test/fts5multiclient.test
+++ b/ext/fts5/test/fts5multiclient.test
@ -45,4 +45,3 @@ do_multiclient_test tn {
 };# do_multiclient_test
 };# foreach_detail_mode
 finish_test
-
--- a/ext/fts5/test/fts5near.test
+++ b/ext/fts5/test/fts5near.test
@ -68,4 +68,3 @@ do_near_test 1.25 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 4) } 0


 finish_test
-
--- a/ext/fts5/test/fts5onepass.test
+++ b/ext/fts5/test/fts5onepass.test
@ -178,4 +178,3 @@ do_execsql_test 4.3.1 {
 do_test 4.2.2 { fts5_level_segs ttt } {3}

 finish_test
-
--- a/ext/fts5/test/fts5optimize.test
+++ b/ext/fts5/test/fts5optimize.test
@ -106,4 +106,3 @@ foreach {tn nStep} {
  do_test 2.$tn.6 { fts5_segcount t1 } 1
 }
 finish_test
-
--- a/ext/fts5/test/fts5phrase.test
+++ b/ext/fts5/test/fts5phrase.test
@ -116,4 +116,3 @@ do_execsql_test 2.0 {
 }

 finish_test
-
--- a/ext/fts5/test/fts5plan.test
+++ b/ext/fts5/test/fts5plan.test
@ -64,4 +64,3 @@ do_eqp_test 1.5 {


 finish_test
-
--- a/ext/fts5/test/fts5porter.test
+++ b/ext/fts5/test/fts5porter.test
@ -11803,4 +11803,3 @@ foreach {in out} $test_vocab {


 finish_test
-
--- a/ext/fts5/test/fts5porter2.test
+++ b/ext/fts5/test/fts5porter2.test
@ -67,4 +67,3 @@ foreach {in out} $test_vocab {


 finish_test
-
--- a/ext/fts5/test/fts5prefix.test
+++ b/ext/fts5/test/fts5prefix.test
@ -341,5 +341,3 @@ foreach {tn create} {
 }

 finish_test
-
-
--- a/ext/fts5/test/fts5query.test
+++ b/ext/fts5/test/fts5query.test
@ -79,5 +79,3 @@ for {set tn 1 ; set pgsz 64} {$tn<32} {incr tn; incr pgsz 16} {


 finish_test
-
-
--- a/ext/fts5/test/fts5rank.test
+++ b/ext/fts5/test/fts5rank.test
@ -90,6 +90,7 @@ do_test 2.7 {
  execsql { SELECT rowid FROM tt('a') ORDER BY rank; } db
 } {1 3 2}

+db2 close

 #--------------------------------------------------------------------------
 # At one point there was a problem with queries such as:
@ -151,4 +152,3 @@ do_execsql_test 4.1 {


 finish_test
-
--- a/ext/fts5/test/fts5rebuild.test
+++ b/ext/fts5/test/fts5rebuild.test
@ -64,4 +64,3 @@ do_catchsql_test 2.2 {
  INSERT INTO nc(nc) VALUES('rebuild');
 } {1 {'rebuild' may not be used with a contentless fts5 table}}
 finish_test
-
--- a/ext/fts5/test/fts5restart.test
+++ b/ext/fts5/test/fts5restart.test
@ -149,4 +149,3 @@ do_test 4.3 {


 finish_test
-
--- a/ext/fts5/test/fts5rowid.test
+++ b/ext/fts5/test/fts5rowid.test
@ -216,4 +216,3 @@ do_execsql_test 6.2 {


 finish_test
-
--- a/ext/fts5/test/fts5simple.test
+++ b/ext/fts5/test/fts5simple.test
@ -411,7 +411,6 @@ do_catchsql_test 19.2 {

 #-------------------------------------------------------------------------
 reset_db
-breakpoint
 do_execsql_test 20.0 {
  CREATE VIRTUAL TABLE x1 USING fts5(x);
  INSERT INTO x1(x1, rank) VALUES('pgsz', 32);
--- a/ext/fts5/test/fts5simple2.test
+++ b/ext/fts5/test/fts5simple2.test
@ -370,4 +370,3 @@ do_execsql_test 17.6 {
 #db eval {SELECT rowid, fts5_decode_none(rowid, block) aS r FROM t2_data} {puts $r}
  
 finish_test
-
--- a/ext/fts5/test/fts5simple3.test
+++ b/ext/fts5/test/fts5simple3.test
@ -116,4 +116,3 @@ do_execsql_test 4.6 {


 finish_test
-
--- a/ext/fts5/test/fts5synonym.test
+++ b/ext/fts5/test/fts5synonym.test
@ -421,4 +421,3 @@ do_execsql_test 7.1.2 {
 } ;# foreach_detail_mode

 finish_test
-
--- a/ext/fts5/test/fts5synonym2.test
+++ b/ext/fts5/test/fts5synonym2.test
@ -161,4 +161,3 @@ foreach {tn expr} {
 }

 finish_test
-
--- a/ext/fts5/test/fts5tok1.test
+++ b/ext/fts5/test/fts5tok1.test
@ -109,7 +109,7 @@ do_catchsql_test 2.0 {
 do_catchsql_test 2.1 {
  CREATE VIRTUAL TABLE t4 USING fts5tokenize;
  SELECT * FROM t4;
-} {1 {SQL logic error or missing database}}
+} {1 {SQL logic error}}


 finish_test
--- a/ext/fts5/test/fts5tokenizer.test
+++ b/ext/fts5/test/fts5tokenizer.test
@ -302,4 +302,3 @@ do_test 9.5.2 { set ::flags } {query}


 finish_test
-
--- a/ext/fts5/test/fts5unicode.test
+++ b/ext/fts5/test/fts5unicode.test
@ -50,7 +50,6 @@ do_execsql_test 2.0 "
  INSERT INTO t2 VALUES('\xC0\xC8\xCC');
  INSERT INTO t3 VALUES('\xC0\xC8\xCC');
 "
-breakpoint
 do_execsql_test 2.1 "
  SELECT 't1' FROM t1 WHERE t1 MATCH '\xE0\xE8\xEC';
  SELECT 't2' FROM t2 WHERE t2 MATCH '\xE0\xE8\xEC';
@ -59,4 +58,3 @@ do_execsql_test 2.1 "


 finish_test
-
--- a/ext/fts5/test/fts5unicode2.test
+++ b/ext/fts5/test/fts5unicode2.test
@ -281,7 +281,6 @@ do_test 4.4 {

 #-------------------------------------------------------------------------

-breakpoint
 do_unicode_token_test3 5.1 {tokenchars {}} {
  sqlite3_reset sqlite3_column_int
 } {
--- a/ext/fts5/test/fts5unicode3.test
+++ b/ext/fts5/test/fts5unicode3.test
@ -126,4 +126,3 @@ do_test 1.5 {


 finish_test
-
--- a/ext/fts5/test/fts5unindexed.test
+++ b/ext/fts5/test/fts5unindexed.test
@ -76,4 +76,3 @@ do_execsql_test 3.2 {


 finish_test
-
--- a/ext/fts5/test/fts5update.test
+++ b/ext/fts5/test/fts5update.test
@ -117,5 +117,3 @@ do_execsql_test 2.2.integrity {

 }
 finish_test
-
-
--- a/ext/fts5/test/fts5version.test
+++ b/ext/fts5/test/fts5version.test
@ -61,4 +61,3 @@ do_test 1.7 {


 finish_test
-
--- a/ext/fts5/test/fts5vocab.test
+++ b/ext/fts5/test/fts5vocab.test
@ -210,7 +210,6 @@ do_execsql_test 5.0 {
  INSERT INTO aux.t1 VALUES('x n z');
 }

-breakpoint
 do_execsql_test 5.1 {
  CREATE VIRTUAL TABLE temp.vm  USING fts5vocab(main, t1, row);
  CREATE VIRTUAL TABLE temp.vt1 USING fts5vocab(t1, row);
--- a/Show More
+++ b/Show More
 @ -1 +1 @@
 .19.0
 .21.0
				`@ -66,4 +66,3 @@ do_execsql_test 2.0 { INSERT INTO t1(t1) VALUES('integrity-check') }`


				`finish_test`
				`@ -84,5 +84,3 @@ foreach_detail_mode $::testprefix {`


				`finish_test`
				`@ -63,5 +63,3 @@ foreach_detail_mode $::testprefix {`


				`finish_test`
				`@ -351,4 +351,3 @@ do_faultsim_test 9.1 -faults oom-* -prep {`


				`finish_test`
				`@ -110,4 +110,3 @@ do_faultsim_test 3.2 -faults oom-* -prep {`


				`finish_test`
				`@ -82,4 +82,3 @@ do_faultsim_test 4 -faults oom-* -prep {`


				`finish_test`
				`@ -132,4 +132,3 @@ do_faultsim_test 4.2 -faults oom* -body {`


				`finish_test`
				`@ -68,4 +68,3 @@ do_near_test 1.25 "a b c d e f g h i" { NEAR(i a+b+c+d b+c, 4) } 0`


				`finish_test`
				`@ -11803,4 +11803,3 @@ foreach {in out} $test_vocab {`


				`finish_test`