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 builtin 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 # Move autogenerated less-informative files to the end:
22 # Hard to do embed.h and embedvar.h in one sweep:
24 topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ \(embed\(var\|\)\.h\|obj\(pp\|XSUB\)\.h\|globals\.c\) \(\(embedvar\|objpp\).h \|\)/ /g'`"
25 subdirfiles="`( find ./*/* -name '*.[cy]' -print | sort ; find ./*/* -name '*.[hH]' -print | sort )`"
26 xsfiles="`find . -name '*.xs' -print | sort`"
28 # etags -d : process defines too (default now)
30 # These are example lines for global variables and PP-code:
31 ## IEXT SV * Iparsehook;
32 ## IEXT char * Isplitstr IINIT(" ");
33 ## dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
35 ## PERLVARI(Grsfp, PerlIO *, Nullfp)
36 ## PERLVAR(cvcache, HV *)
38 # Putting PL_\1 in the substitution line makes etags dump core
39 # Thus we do it later (but 20.2.92 does it OK).
41 -r '/[dI]?EXT\(CONST\)?[ \t*]+\([a-zA-Z_0-9]+[ \t*]+\)*\([a-zA-Z_0-9]+\)[ \t]*\($\|;\|\[\|[ \t]I+NIT[ \t]*(\|\/\*\)/\3/' \
42 -r '/IEXT[ \t][^\/]*[ \t*]I\([a-zA-Z_][a-zA-Z_0-9]*\)[\[; \t]/\1/' \
43 -r '/PERLVAR[a-zA-Z_0-9]*[ \t]*([ \t]*[GIT]?\([a-zA-Z_][a-zA-Z_0-9]*\)[ \t]*[\[,]/\1/' \
44 -r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/'
48 rm -f TAGS.tmp TAGS.tm2
50 # Process lines like this: #define MEM_ALIGNBYTES $alignbytes /**/
52 -l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
54 etags -o TAGS.tmp -a "$@" $topfiles
57 perl -w014pe 'if (s/^( .* PERLVAR I? # 1: TAG group
60 \x7F # End of description
62 ( .* \x1 ) # 2: Exact group
63 /${1}PL_$2/mgx) { # Add PL_
65 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
66 $_ .= ("\f" x $chars);
67 }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
71 etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' embed.h
72 etags -o TAGS.tmp -a globals.c embedvar.h objXSUB.h objpp.h
74 perl -w014pe 'if (s/^( [^\n\x7F\x1]*\b # 1: TAG group
76 [^\w\x7X\x1\n]* # Most anything
77 \x7F # End of description
79 (\d+,\d+\n) # 3: TAGS Trail
80 /$1$2\x1$3/mgx) { # Add specific marking
82 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
83 $_ .= ("\f" x $chars);
84 }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
86 # Add MODULE lines to TAG files (to be postprocessed later),
87 # and BOOT: lines (in DynaLoader processed twice?)
89 # This skips too many XSUBs:
91 # etags -o TAGS.tmp -a -d -l c \
92 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
93 # -r '/[ \t]*BOOT:/' \
96 etags -o TAGS.tmp -a -d -l c \
97 -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
99 -r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \
102 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)/\2/' \
103 # -r '/MODULE.*PREFIX[ \t]*=[ \t]*\([^ \t]+\)/\1/' \
106 etags -o TAGS.tmp -a "$@" $subdirfiles
108 if test ! -f emacs/cperl-mode.elc ; then
109 ( cd emacs; emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el )
112 # This should work with newer Emaxen
115 if emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f cperl-add-tags-recurse-noxs ; then
120 $update = s/^PP\(\177\d+,\d+\n//gm;
121 $update += s/^(I?EXT.*[ \t])IINIT[ \t]*\((\177)/$1$2/gm;
122 if (/^\n*[^\s,]+\.xs,/s) {
123 $mod = $cmod = $bmod = $pref = "";
124 s/^(.*\n)\1+/$1/mg; # Remove duplicate lines
126 if (/^MODULE[ \t]*=[ \t]*(\S+)(?:[ \t]+PACKAGE[ \t]*=[ \t]*(\S+))?[ \t\177]/m) {
128 ($bmod = $mod) =~ tr/:/_/;
129 $cmod = "XS_${bmod}_";
131 if (s/[ \t]+PREFIX[ \t]*=[ \t]*([^\s\177]+)(\177)/$+/) {
133 $pref =~ s/([^\w\s])/\\$1/g;
134 $pref = "(?:$pref)?";
136 } elsif ($mod ne "") {
137 # Ref points for Module::subr, XS_Module_subr, subr
138 s/^($pref(\w+)[ \t()]*\177)(\d+,\d+)$/$1${mod}::${2}\01$3\n$1$2\01$3\n$1$cmod$2\01$3/gm;
139 # Ref for Module::bootstrap bootstrap boot_Module
140 s/^([ \t]*BOOT:\177)(\d+,\d+)$/$1${mod}::bootstrap\01$2\n${1}bootstrap\01$2\n${1}boot_$bmod\01$2/gm;
143 } split(/(\nMODULE[ \t]*=[^\n\177]+\177)/));
149 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
150 $_ .= ("\f" x $chars);
151 }' TAGS.tmp > TAGS.tm2