1 # Make a TAGS file for emacs ``M-x find-tag'' from all <c,h,y,xs> source files.
2 # (``make realclean'' first to avoid generated files, or ``make'' first
3 # to get tags from all files.)
5 # (IZ: to be a happier jumper: install 'imenu-go.el' from
6 # ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs.)
8 # (Some tags should probably live in their own subdirs, like those in x2p/,
9 # but I have never been interested in x2p anyway.)
11 # Hallvard B Furuseth <h.b.furuseth@usit.uio.no>, Aug -96.
13 # Ilya Zakharevich, Oct 97: minor comments, add CPerl scan;
14 # Use Hallvard's scan for XS files - since he processes the "C" part too -
15 # but with a lot of improvements: now it is no worse than CPerl's one.
17 # Avoid builitin on OS/2:
18 if test ! -z "$OS2_SHELL"; then alias find=gnufind; fi
20 # Insure proper order (.h after .c, .xs before .c in subdirs):
21 topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ embed.h / /'`"
22 subdirfiles="`( find ./*/* -name '*.[cy]' -print | sort ; find ./*/* -name '*.[hH]' -print | sort )`"
23 xsfiles="`find . -name '*.xs' -print | sort`"
27 # These are example lines for global variables and PP-code:
28 ## IEXT SV * Iparsehook;
29 ## IEXT char * Isplitstr IINIT(" ");
30 ## dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
34 -r '/[dI]?EXT\(CONST\)?[ \t*]+\([a-zA-Z_0-9]+[ \t*]+\)*\([a-zA-Z_0-9]+\)[ \t]*\($\|;\|\[\|[ \t]I+NIT[ \t]*(\|\/\*\)/\3/' \
35 -r '/IEXT[ \t][^\/]*[ \t*]I\([a-zA-Z_][a-zA-Z_0-9]*\)[\[; \t]/\1/' \
36 -r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/'
40 rm -f TAGS.tmp TAGS.tm2
42 # Process lines like this: #define MEM_ALIGNBYTES $alignbytes /**/
44 -l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
46 etags -o TAGS.tmp -a "$@" $topfiles
47 etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' embed.h
49 # Add MODULE lines to TAG files (to be postprocessed later),
50 # and BOOT: lines (in DynaLoader processed twice?)
52 # This skips too many XSUBs:
54 # etags -o TAGS.tmp -a -d -l c \
55 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
56 # -r '/[ \t]*BOOT:/' \
59 etags -o TAGS.tmp -a -d -l c \
60 -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
62 -r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \
65 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)/\2/' \
66 # -r '/MODULE.*PREFIX[ \t]*=[ \t]*\([^ \t]+\)/\1/' \
69 etags -o TAGS.tmp -a "$@" $subdirfiles
71 if ! test -f emacs/cperl-mode.elc ; then
72 ( cd emacs; emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el )
75 # This should work with newer Emaxen
78 if emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f cperl-add-tags-recurse-noxs ; then
83 $update = s/^PP\(\177\d+,\d+\n//gm;
84 $update += s/^(I?EXT.*[ \t])IINIT[ \t]*\((\177)/$1$2/gm;
85 if (/^\n*[^\s,]+\.xs,/s) {
86 $mod = $cmod = $bmod = $pref = "";
87 s/^(.*\n)\1+/$1/mg; # Remove duplicate lines
89 if (/^MODULE[ \t]*=[ \t]*(\S+)(?:[ \t]+PACKAGE[ \t]*=[ \t]*(\S+))?[ \t\177]/m) {
91 ($bmod = $mod) =~ tr/:/_/;
92 $cmod = "XS_${bmod}_";
94 if (s/[ \t]+PREFIX[ \t]*=[ \t]*([^\s\177]+)(\177)/$+/) {
96 $pref =~ s/([^\w\s])/\\$1/g;
99 } elsif ($mod ne "") {
100 # Ref points for Module::subr, XS_Module_subr, subr
101 s/^($pref(\w+)[ \t()]*\177)(\d+,\d+)$/$1${mod}::${2}\01$3\n$1$2\01$3\n$1$cmod$2\01$3/gm;
102 # Ref for Module::bootstrap bootstrap boot_Module
103 s/^([ \t]*BOOT:\177)(\d+,\d+)$/$1${mod}::bootstrap\01$2\n${1}bootstrap\01$2\n${1}boot_$bmod\01$2/gm;
106 } split(/(\nMODULE[ \t]*=[^\n\177]+\177)/));
112 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
113 $_ .= ("\f" x $chars);
114 }' TAGS.tmp > TAGS.tm2