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 subdirs="`find ./* -maxdepth 0 -type d`"
26 subdirfiles="`find $subdirs -name '*.[cy]' -print | sort`"
27 subdirfiles1="`find $subdirs -name '*.[hH]' -print | sort`"
28 xsfiles="`find . -name '*.xs' -print | sort`"
30 # etags -d : process defines too (default now)
32 # These are example lines for global variables and PP-code:
33 ## IEXT SV * Iparsehook;
34 ## IEXT char * Isplitstr IINIT(" ");
35 ## dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
37 ## PERLVARI(Grsfp, PerlIO *, Nullfp)
38 ## PERLVAR(cvcache, HV *)
40 # Putting PL_\1 in the substitution line makes etags dump core
41 # Thus we do it later (but 20.2.92 does it OK).
43 -r '/[dI]?EXT\(CONST\)?[ \t*]+\([a-zA-Z_0-9]+[ \t*]+\)*\([a-zA-Z_0-9]+\)[ \t]*\($\|;\|\[\|[ \t]I+NIT[ \t]*(\|\/\*\)/\3/' \
44 -r '/IEXT[ \t][^\/]*[ \t*]I\([a-zA-Z_][a-zA-Z_0-9]*\)[\[; \t]/\1/' \
45 -r '/PERLVAR[a-zA-Z_0-9]*[ \t]*([ \t]*[GIT]?\([a-zA-Z_][a-zA-Z_0-9]*\)[ \t]*[\[,]/\1/' \
46 -r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/'
50 rm -f TAGS.tmp TAGS.tm2
52 # Process lines like this: #define MEM_ALIGNBYTES $alignbytes /**/
54 -l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
56 # Process lines like this: Mcc (Loc.U):
57 etags -o TAGS.tmp -a \
58 -l none -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\$\1/' \
59 -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\1/' Porting/Glossary
61 etags -o TAGS.tmp -a "$@" $topfiles
64 perl -w014pe 'if (s/^( .* PERLVAR A?I? # 1: TAG group
67 \x7F # End of description
69 ( .* \x01 ) # 2: Exact group
70 /${1}PL_$2/mgx) { # Add PL_
72 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
73 $_ .= ("\f" x $chars);
74 }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
78 etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' embed.h
79 etags -o TAGS.tmp -a globals.c embedvar.h objXSUB.h objpp.h
81 perl -w014pe 'if (s/^( [^\n\x7F\x01]*\b # 1: TAG group
83 [^\w\x7F\x01\n]* # Most anything
84 \x7F # End of description
86 (\d+,\d+\n) # 3: TAGS Trail
87 /$1$2\x01$3/mgx) { # Add specific marking
89 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
90 $_ .= ("\f" x $chars);
91 }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
93 # Add MODULE lines to TAG files (to be postprocessed later),
94 # and BOOT: lines (in DynaLoader processed twice?)
96 # This skips too many XSUBs:
98 # etags -o TAGS.tmp -a -d -l c \
99 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
100 # -r '/[ \t]*BOOT:/' \
103 etags -o TAGS.tmp -a -d -l c \
104 -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
106 -r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \
109 # -r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)/\2/' \
110 # -r '/MODULE.*PREFIX[ \t]*=[ \t]*\([^ \t]+\)/\1/' \
113 etags -o TAGS.tmp -a "$@" $subdirfiles
114 etags -o TAGS.tmp -a "$@" $subdirfiles1
116 if test ! -f emacs/cperl-mode.elc ; then
117 ( cd emacs; emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el )
120 # This should work with newer Emaxen
123 if emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f cperl-add-tags-recurse-noxs ; then
128 $update = s/^PP\(\177\d+,\d+\n//gm;
129 $update += s/^(I?EXT.*[ \t])IINIT[ \t]*\((\177)/$1$2/gm;
130 if (/^\n*[^\s,]+\.xs,/s) {
131 $mod = $cmod = $bmod = $pref = "";
132 s/^(.*\n)\1+/$1/mg; # Remove duplicate lines
134 if (/^MODULE[ \t]*=[ \t]*(\S+)(?:[ \t]+PACKAGE[ \t]*=[ \t]*(\S+))?[ \t\177]/m) {
136 ($bmod = $mod) =~ tr/:/_/;
137 $cmod = "XS_${bmod}_";
139 if (s/[ \t]+PREFIX[ \t]*=[ \t]*([^\s\177]+)(\177)/$+/) {
141 $pref =~ s/([^\w\s])/\\$1/g;
142 $pref = "(?:$pref)?";
144 } elsif ($mod ne "") {
145 # Ref points for Module::subr, XS_Module_subr, subr
146 s/^($pref(\w+)[ \t()]*\177)(\d+,\d+)$/$1${mod}::${2}\01$3\n$1$2\01$3\n$1$cmod$2\01$3/gm;
147 # Ref for Module::bootstrap bootstrap boot_Module
148 s/^([ \t]*BOOT:\177)(\d+,\d+)$/$1${mod}::bootstrap\01$2\n${1}bootstrap\01$2\n${1}boot_$bmod\01$2/gm;
151 } split(/(\nMODULE[ \t]*=[^\n\177]+\177)/));
157 s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
158 $_ .= ("\f" x $chars);
159 }' TAGS.tmp > TAGS.tm2