3 # To build a single huge source file holding all of SQLite (or at
4 # least the core components - the test harness, shell, and TCL
5 # interface are omitted.) first do
9 # The make target above moves all of the source code files into
10 # a subdirectory named "tsrc". (This script expects to find the files
11 # there and will not work if they are not found.) There are a few
12 # generated C code files that are also added to the tsrc directory.
13 # For example, the "parse.c" and "parse.h" files to implement the
14 # the parser are derived from "parse.y" using lemon. And the
15 # "keywordhash.h" files is generated by a program named "mkkeywordhash".
17 # After the "tsrc" directory has been created and populated, run
20 # tclsh mksqlite3c.tcl
22 # The amalgamated SQLite code will be written into sqlite3.c
25 # Begin by reading the "sqlite3.h" header file. Count the number of lines
26 # in this file and extract the version number. That information will be
27 # needed in order to generate the header of the amalgamation.
29 set in [open tsrc/sqlite3.h]
34 if {$line=="" && [eof $in]} break
36 regexp {#define\s+SQLITE_VERSION\s+"(.*)"} $line all VERSION
40 # Open the output file and write a header comment at the beginning
43 set out [open sqlite3internal.h w]
44 set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
46 {/******************************************************************************
47 ** This file is an amalgamation of many private header files from SQLite
51 # These are the header files used by SQLite. The first time any of these
52 # files are seen in a #include statement in the C code, include the complete
53 # text of the file in-line. The file only needs to be included once.
74 set available_hdr($hdr) 1
77 # 78 stars used for comment formatting.
79 {*****************************************************************************}
81 # Insert a comment into the code
83 proc section_comment {text} {
85 set n [string length $text]
86 set nstar [expr {60 - $n}]
87 set stars [string range $s78 0 $nstar]
88 puts $out "/************** $text $stars/"
91 # Read the source file named $filename and write it into the
92 # sqlite3.c output file. If any #include statements are seen,
93 # process them approprately.
95 proc copy_file {filename} {
96 global seen_hdr available_hdr out
97 set tail [file tail $filename]
98 section_comment "Begin file $tail"
99 set in [open $filename r]
102 if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
103 if {[info exists available_hdr($hdr)]} {
104 if {$available_hdr($hdr)} {
105 section_comment "Include $hdr in the middle of $tail"
107 section_comment "Continuing where we left off in $tail"
109 } elseif {![info exists seen_hdr($hdr)]} {
113 } elseif {[regexp {^#ifdef __cplusplus} $line]} {
115 } elseif {[regexp {^#line} $line]} {
116 # Skip #line directives.
122 section_comment "End of $tail"
126 # Process the source files. Process files containing commonly
127 # used subroutines first in order to help the compiler find
128 # inlining opportunities.
141 if {$available_hdr($file)} {