mirror of
https://github.com/sqlite/sqlite.git
synced 2024-12-01 01:01:28 +01:00
368 lines
10 KiB
Tcl
368 lines
10 KiB
Tcl
#!/usr/bin/tclsh
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#
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# To build a single huge source file holding all of SQLite (or at
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# least the core components - the test harness, shell, and TCL
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# interface are omitted.) first do
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#
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# make target_source
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#
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# The make target above moves all of the source code files into
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# a subdirectory named "tsrc". (This script expects to find the files
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# there and will not work if they are not found.) There are a few
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# generated C code files that are also added to the tsrc directory.
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# For example, the "parse.c" and "parse.h" files to implement the
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# the parser are derived from "parse.y" using lemon. And the
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# "keywordhash.h" files is generated by a program named "mkkeywordhash".
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#
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# After the "tsrc" directory has been created and populated, run
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# this script:
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#
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# tclsh mksqlite3c-noext.tcl
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#
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# The amalgamated SQLite code will be written into sqlite3.c
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#
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# Begin by reading the "sqlite3.h" header file. Extract the version number
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# from in this file. The version number is needed to generate the header
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# comment of the amalgamation.
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#
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set addstatic 1
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set linemacros 0
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set useapicall 0
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for {set i 0} {$i<[llength $argv]} {incr i} {
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set x [lindex $argv $i]
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if {[regexp {^-+nostatic$} $x]} {
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set addstatic 0
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} elseif {[regexp {^-+linemacros} $x]} {
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set linemacros 1
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} elseif {[regexp {^-+useapicall} $x]} {
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set useapicall 1
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} else {
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error "unknown command-line option: $x"
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}
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}
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set in [open tsrc/sqlite3.h]
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set cnt 0
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set VERSION ?????
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while {![eof $in]} {
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set line [gets $in]
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if {$line=="" && [eof $in]} break
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incr cnt
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regexp {#define\s+SQLITE_VERSION\s+"(.*)"} $line all VERSION
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}
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close $in
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# Open the output file and write a header comment at the beginning
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# of the file.
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#
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set out [open sqlite3.c w]
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# Force the output to use unix line endings, even on Windows.
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fconfigure $out -translation lf
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set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
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puts $out [subst \
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{/******************************************************************************
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** This file is an amalgamation of many separate C source files from SQLite
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** version $VERSION. By combining all the individual C code files into this
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** single large file, the entire code can be compiled as a single translation
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** unit. This allows many compilers to do optimizations that would not be
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** possible if the files were compiled separately. Performance improvements
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** of 5% or more are commonly seen when SQLite is compiled as a single
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** translation unit.
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**
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** This file is all you need to compile SQLite. To use SQLite in other
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** programs, you need this file and the "sqlite3.h" header file that defines
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** the programming interface to the SQLite library. (If you do not have
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** the "sqlite3.h" header file at hand, you will find a copy embedded within
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** the text of this file. Search for "Begin file sqlite3.h" to find the start
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** of the embedded sqlite3.h header file.) Additional code files may be needed
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** if you want a wrapper to interface SQLite with your choice of programming
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** language. The code for the "sqlite3" command-line shell is also in a
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** separate file. This file contains only code for the core SQLite library.
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*/
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#define SQLITE_CORE 1
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#define SQLITE_AMALGAMATION 1}]
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if {$addstatic} {
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puts $out \
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{#ifndef SQLITE_PRIVATE
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# define SQLITE_PRIVATE static
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#endif}
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}
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# These are the header files used by SQLite. The first time any of these
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# files are seen in a #include statement in the C code, include the complete
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# text of the file in-line. The file only needs to be included once.
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#
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foreach hdr {
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btree.h
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btreeInt.h
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hash.h
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hwtime.h
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keywordhash.h
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msvc.h
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mutex.h
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opcodes.h
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os_common.h
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os_setup.h
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os_win.h
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os.h
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pager.h
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parse.h
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pcache.h
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pragma.h
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sqlite3.h
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sqlite3ext.h
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sqliteicu.h
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sqliteInt.h
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sqliteLimit.h
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vdbe.h
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vdbeInt.h
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vxworks.h
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wal.h
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whereInt.h
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} {
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set available_hdr($hdr) 1
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}
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set available_hdr(sqliteInt.h) 0
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# These headers should be copied into the amalgamation without modifying any
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# of their function declarations or definitions.
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set varonly_hdr(sqlite3.h) 1
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# These are the functions that accept a variable number of arguments. They
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# always need to use the "cdecl" calling convention even when another calling
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# convention (e.g. "stcall") is being used for the rest of the library.
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set cdecllist {
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sqlite3_config
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sqlite3_db_config
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sqlite3_log
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sqlite3_mprintf
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sqlite3_snprintf
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sqlite3_test_control
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sqlite3_vtab_config
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}
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# 78 stars used for comment formatting.
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set s78 \
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{*****************************************************************************}
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# Insert a comment into the code
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#
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proc section_comment {text} {
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global out s78
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set n [string length $text]
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set nstar [expr {60 - $n}]
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set stars [string range $s78 0 $nstar]
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puts $out "/************** $text $stars/"
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}
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# Read the source file named $filename and write it into the
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# sqlite3.c output file. If any #include statements are seen,
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# process them appropriately.
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#
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proc copy_file {filename} {
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global seen_hdr available_hdr varonly_hdr cdecllist out
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global addstatic linemacros useapicall
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set ln 0
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set tail [file tail $filename]
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section_comment "Begin file $tail"
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if {$linemacros} {puts $out "#line 1 \"$filename\""}
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set in [open $filename r]
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set varpattern {^[a-zA-Z][a-zA-Z_0-9 *]+(sqlite3[_a-zA-Z0-9]+)(\[|;| =)}
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set declpattern {([a-zA-Z][a-zA-Z_0-9 ]+ \**)(sqlite3[_a-zA-Z0-9]+)(\(.*)}
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if {[file extension $filename]==".h"} {
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set declpattern " *$declpattern"
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}
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set declpattern ^$declpattern\$
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while {![eof $in]} {
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set line [gets $in]
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incr ln
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if {[regexp {^\s*#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
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if {[info exists available_hdr($hdr)]} {
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if {$available_hdr($hdr)} {
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if {$hdr!="os_common.h" && $hdr!="hwtime.h"} {
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set available_hdr($hdr) 0
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}
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section_comment "Include $hdr in the middle of $tail"
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copy_file tsrc/$hdr
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section_comment "Continuing where we left off in $tail"
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if {$linemacros} {puts $out "#line [expr {$ln+1}] \"$filename\""}
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} else {
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# Comment out the entire line, replacing any nested comment
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# begin/end markers with the harmless substring "**".
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puts $out "/* [string map [list /* ** */ **] $line] */"
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}
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} elseif {![info exists seen_hdr($hdr)]} {
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if {![regexp {/\*\s+amalgamator:\s+dontcache\s+\*/} $line]} {
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set seen_hdr($hdr) 1
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}
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puts $out $line
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} elseif {[regexp {/\*\s+amalgamator:\s+keep\s+\*/} $line]} {
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# This include file must be kept because there was a "keep"
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# directive inside of a line comment.
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puts $out $line
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} else {
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# Comment out the entire line, replacing any nested comment
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# begin/end markers with the harmless substring "**".
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puts $out "/* [string map [list /* ** */ **] $line] */"
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}
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} elseif {[regexp {^#ifdef __cplusplus} $line]} {
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puts $out "#if 0"
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} elseif {!$linemacros && [regexp {^#line} $line]} {
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# Skip #line directives.
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} elseif {$addstatic
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&& ![regexp {^(static|typedef|SQLITE_PRIVATE)} $line]} {
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# Skip adding the SQLITE_PRIVATE or SQLITE_API keyword before
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# functions if this header file does not need it.
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if {![info exists varonly_hdr($tail)]
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&& [regexp $declpattern $line all rettype funcname rest]} {
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regsub {^SQLITE_API } $line {} line
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# Add the SQLITE_PRIVATE or SQLITE_API keyword before functions.
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# so that linkage can be modified at compile-time.
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if {[regexp {^sqlite3[a-z]*_} $funcname]} {
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set line SQLITE_API
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append line " " [string trim $rettype]
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if {[string index $rettype end] ne "*"} {
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append line " "
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}
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if {$useapicall} {
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if {[lsearch -exact $cdecllist $funcname] >= 0} {
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append line SQLITE_CDECL " "
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} else {
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append line SQLITE_APICALL " "
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}
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}
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append line $funcname $rest
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puts $out $line
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} else {
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puts $out "SQLITE_PRIVATE $line"
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}
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} elseif {[regexp $varpattern $line all varname]} {
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# Add the SQLITE_PRIVATE before variable declarations or
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# definitions for internal use
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regsub {^SQLITE_API } $line {} line
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if {![regexp {^sqlite3_} $varname]} {
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regsub {^extern } $line {} line
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puts $out "SQLITE_PRIVATE $line"
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} else {
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if {[regexp {const char sqlite3_version\[\];} $line]} {
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set line {const char sqlite3_version[] = SQLITE_VERSION;}
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}
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regsub {^SQLITE_EXTERN } $line {} line
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puts $out "SQLITE_API $line"
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}
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} elseif {[regexp {^(SQLITE_EXTERN )?void \(\*sqlite3IoTrace\)} $line]} {
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regsub {^SQLITE_API } $line {} line
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regsub {^SQLITE_EXTERN } $line {} line
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puts $out $line
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} elseif {[regexp {^void \(\*sqlite3Os} $line]} {
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regsub {^SQLITE_API } $line {} line
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puts $out "SQLITE_PRIVATE $line"
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} else {
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puts $out $line
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}
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} else {
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puts $out $line
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}
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}
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close $in
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section_comment "End of $tail"
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}
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# Process the source files. Process files containing commonly
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# used subroutines first in order to help the compiler find
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# inlining opportunities.
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#
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foreach file {
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sqliteInt.h
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global.c
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ctime.c
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status.c
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date.c
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os.c
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fault.c
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mem0.c
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mem1.c
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mem2.c
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mem3.c
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mem5.c
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mutex.c
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mutex_noop.c
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mutex_unix.c
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mutex_w32.c
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malloc.c
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printf.c
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treeview.c
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random.c
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threads.c
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utf.c
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util.c
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hash.c
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opcodes.c
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os_unix.c
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os_win.c
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bitvec.c
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pcache.c
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pcache1.c
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rowset.c
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pager.c
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wal.c
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btmutex.c
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btree.c
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backup.c
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vdbemem.c
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vdbeaux.c
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vdbeapi.c
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vdbetrace.c
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vdbe.c
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vdbeblob.c
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vdbesort.c
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memjournal.c
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walker.c
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resolve.c
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expr.c
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alter.c
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analyze.c
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attach.c
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auth.c
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build.c
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callback.c
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delete.c
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func.c
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fkey.c
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insert.c
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legacy.c
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loadext.c
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pragma.c
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prepare.c
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select.c
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table.c
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trigger.c
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update.c
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vacuum.c
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vtab.c
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wherecode.c
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whereexpr.c
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where.c
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window.c
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parse.c
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tokenize.c
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complete.c
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main.c
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notify.c
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} {
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copy_file tsrc/$file
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}
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close $out
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