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
## 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
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
the numeric codes used by the parse.c parser. The keywordhash.h file is
generated by a C-language program at tool mkkeywordhash.c.
+Th3 **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
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
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:
## 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).
-C In\sLSM,\savoid\scalling\sthe\sVFS\sxTestLock\smethod\sto\stest\sfor\sa\slock\sthat\nconflicts\swith\sone\sheld\sby\sthe\ssame\sprocess.\sThe\sresults\sof\ssuch\sa\scall\sare\nconsidered\sundefined\s(since\sthey\sare\sdifferent\sunder\swin32\sand\sposix).
-D 2017-07-10T18:33:41.229
+C Updates\sto\sthe\srepository\sREADME.md\sfile.
+D 2017-07-10T18:52:29.772
F Makefile.in 081e48dfe7f995d57ce1a88ddf4d2917b4349158648a6cd45b42beae30de3a12
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc 20850e3e8d4d4791e0531955852d768eb06f24138214870d543abb1a47346fba
-F README.md 2b15fae33852f2f53996774c21fb41e1d94181c4401a0e43ac93e11f2cc901b9
+F README.md 7149d20d5301d984700f873ddcfdff2b1e500e130b7731945519ab656a7c1ddd
F VERSION 87f1498f27e398bce3da2fa8125c9879a38ed9d87e4b5fb922b351de1e25cadb
F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P bde431b1e332feaeb516dc46d180e2b2f42820c471feed7eda89452ada898dc9
-R 71f00994c33b502fb1928c2468689120
-U dan
-Z 83fb5bcc897af021df9d77183bfae0e8
+P a82a9bea624caf6b24d8e3f3c596817968b258f06e54288022f6df8226281057
+R e665dbe909654ef048a5f33418983d75
+U drh
+Z cc6da2795dbc87bb104a139fac1657c5
projects / thirdparty / sqlite.git / commitdiff
