xref: /sqlite-3.40.0/tool/mkshellc.tcl (revision 80fafc25)
1#!/usr/bin/tclsh
2#
3# Run this script to generate the "shell.c" source file from
4# constituent parts.
5#
6# No arguments are required.  This script determines the location
7# of its input files relative to the location of the script itself.
8# This script should be tool/mkshellc.tcl.  If the directory holding
9# the script is $DIR, then the component parts are located in $DIR/../src
10# and $DIR/../ext/misc.
11#
12set topdir [file dir [file dir [file normal $argv0]]]
13set out stdout
14fconfigure stdout -translation binary
15puts $out {/* DO NOT EDIT!
16** This file is automatically generated by the script in the canonical
17** SQLite source tree at tool/mkshellc.tcl.  That script combines source
18** code from various constituent source files of SQLite into this single
19** "shell.c" file used to implement the SQLite command-line shell.
20**
21** Most of the code found below comes from the "src/shell.c.in" file in
22** the canonical SQLite source tree.  That main file contains "INCLUDE"
23** lines that specify other files in the canonical source tree that are
24** inserted to getnerate this complete program source file.
25**
26** The code from multiple files is combined into this single "shell.c"
27** source file to help make the command-line program easier to compile.
28**
29** To modify this program, get a copy of the canonical SQLite source tree,
30** edit the src/shell.c.in" and/or some of the other files that are included
31** by "src/shell.c.in", then rerun the tool/mkshellc.tcl script.
32*/}
33set in [open $topdir/src/shell.c.in]
34fconfigure $in -translation binary
35proc omit_redundant_typedefs {line} {
36  global typedef_seen
37  if {[regexp {^typedef .*\y([a-zA-Z0-9_]+);} $line all typename]} {
38    if {[info exists typedef_seen($typename)]} {
39      return "/* [string map {/* // */ //} $line] */"
40    }
41    set typedef_seen($typename) 1
42  }
43  return $line
44}
45set iLine 0
46while {1} {
47  set lx [omit_redundant_typedefs [gets $in]]
48  if {[eof $in]} break;
49  incr iLine
50  if {[regexp {^INCLUDE } $lx]} {
51    set cfile [lindex $lx 1]
52    puts $out "/************************* Begin $cfile ******************/"
53#   puts $out "#line 1 \"$cfile\""
54    set in2 [open $topdir/src/$cfile]
55    fconfigure $in2 -translation binary
56    while {![eof $in2]} {
57      set lx [omit_redundant_typedefs [gets $in2]]
58      if {[regexp {^#include "sqlite} $lx]} {
59        set lx "/* $lx */"
60      }
61      if {[regexp {^# *include "test_windirent.h"} $lx]} {
62        set lx "/* $lx */"
63      }
64      set lx [string map [list __declspec(dllexport) {}] $lx]
65      puts $out $lx
66    }
67    close $in2
68    puts $out "/************************* End $cfile ********************/"
69#   puts $out "#line [expr $iLine+1] \"shell.c.in\""
70    continue
71  }
72  puts $out $lx
73}
74close $in
75close $out
76