Annotation of embedaddon/sqlite3/ext/fts3/mkfts3amal.tcl, revision 1.1.1.1
1.1 misho 1: #!/usr/bin/tclsh
2: #
3: # This script builds a single C code file holding all of FTS3 code.
4: # The name of the output file is fts3amal.c. To build this file,
5: # first do:
6: #
7: # make target_source
8: #
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.)
12: #
13: # After the "tsrc" directory has been created and populated, run
14: # this script:
15: #
16: # tclsh mkfts3amal.tcl
17: #
18: # The amalgamated FTS3 code will be written into fts3amal.c
19: #
20:
21: # Open the output file and write a header comment at the beginning
22: # of the file.
23: #
24: set out [open fts3amal.c w]
25: set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
26: puts $out [subst \
27: {/******************************************************************************
28: ** This file is an amalgamation of separate C source files from the SQLite
29: ** Full Text Search extension 2 (fts3). By combining all the individual C
30: ** code files into this single large file, the entire code can be compiled
31: ** as a one translation unit. This allows many compilers to do optimizations
32: ** that would not be possible if the files were compiled separately. It also
33: ** makes the code easier to import into other projects.
34: **
35: ** This amalgamation was generated on $today.
36: */}]
37:
38: # These are the header files used by FTS3. The first time any of these
39: # files are seen in a #include statement in the C code, include the complete
40: # text of the file in-line. The file only needs to be included once.
41: #
42: foreach hdr {
43: fts3.h
44: fts3_hash.h
45: fts3_tokenizer.h
46: sqlite3.h
47: sqlite3ext.h
48: } {
49: set available_hdr($hdr) 1
50: }
51:
52: # 78 stars used for comment formatting.
53: set s78 \
54: {*****************************************************************************}
55:
56: # Insert a comment into the code
57: #
58: proc section_comment {text} {
59: global out s78
60: set n [string length $text]
61: set nstar [expr {60 - $n}]
62: set stars [string range $s78 0 $nstar]
63: puts $out "/************** $text $stars/"
64: }
65:
66: # Read the source file named $filename and write it into the
67: # sqlite3.c output file. If any #include statements are seen,
68: # process them approprately.
69: #
70: proc copy_file {filename} {
71: global seen_hdr available_hdr out
72: set tail [file tail $filename]
73: section_comment "Begin file $tail"
74: set in [open $filename r]
75: while {![eof $in]} {
76: set line [gets $in]
77: if {[regexp {^#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
78: if {[info exists available_hdr($hdr)]} {
79: if {$available_hdr($hdr)} {
80: section_comment "Include $hdr in the middle of $tail"
81: copy_file tsrc/$hdr
82: section_comment "Continuing where we left off in $tail"
83: }
84: } elseif {![info exists seen_hdr($hdr)]} {
85: set seen_hdr($hdr) 1
86: puts $out $line
87: }
88: } elseif {[regexp {^#ifdef __cplusplus} $line]} {
89: puts $out "#if 0"
90: } elseif {[regexp {^#line} $line]} {
91: # Skip #line directives.
92: } else {
93: puts $out $line
94: }
95: }
96: close $in
97: section_comment "End of $tail"
98: }
99:
100:
101: # Process the source files. Process files containing commonly
102: # used subroutines first in order to help the compiler find
103: # inlining opportunities.
104: #
105: foreach file {
106: fts3.c
107: fts3_hash.c
108: fts3_porter.c
109: fts3_tokenizer.c
110: fts3_tokenizer1.c
111: } {
112: copy_file tsrc/$file
113: }
114:
115: close $out
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