[p5sagit/p5-mst-13.2.git] / emacs / ptags

# Make a TAGS file for emacs ``M-x find-tag'' from all <c,h,y,xs> source files.
# (``make realclean'' first to avoid generated files, or ``make'' first
# to get tags from all files.)
#
# (IZ: to be a happier jumper: install 'imenu-go.el' from
#      ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs.)
#
# (Some tags should probably live in their own subdirs, like those in x2p/,
# but I have never been interested in x2p anyway.)
#
# Hallvard B Furuseth <h.b.furuseth@usit.uio.no>, Aug -96.
#
# Ilya Zakharevich, Oct 97: minor comments, add CPerl scan;
#   Use Hallvard's scan for XS files - since he processes the "C" part too -
#   but with a lot of improvements: now it is no worse than CPerl's one.

# Avoid builitin on OS/2:
if test ! -z "$OS2_SHELL"; then alias find=gnufind; fi

# Insure proper order (.h after .c, .xs before .c in subdirs):
topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ embed.h / /'`"
subdirfiles="`( find ./*/* -name '*.[cy]' -print | sort ; find ./*/* -name '*.[hH]' -print | sort )`"
xsfiles="`find . -name '*.xs' -print | sort`"

# What is `etags -d'?

# These are example lines for global variables and PP-code:
## IEXT SV *       Iparsehook;
## IEXT char *     Isplitstr IINIT(" ");
## dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
## PP(pp_const)

set x	-d -l c \
	-r '/[dI]?EXT\(CONST\)?[ \t*]+\([a-zA-Z_0-9]+[ \t*]+\)*\([a-zA-Z_0-9]+\)[ \t]*\($\|;\|\[\|[ \t]I+NIT[ \t]*(\|\/\*\)/\3/' \
	-r '/IEXT[ \t][^\/]*[ \t*]I\([a-zA-Z_][a-zA-Z_0-9]*\)[\[; \t]/\1/'  \
	-r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/'

shift

rm -f TAGS.tmp TAGS.tm2

# Process lines like this: #define MEM_ALIGNBYTES $alignbytes      /**/
etags -o TAGS.tmp \
	-l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
	config_h.SH
etags -o TAGS.tmp -a "$@" $topfiles
etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' embed.h

# Add MODULE lines to TAG files (to be postprocessed later),
#   and BOOT: lines (in DynaLoader processed twice?)

# This skips too many XSUBs:

# etags -o TAGS.tmp -a -d -l c \
# 	-r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
# 	-r '/[ \t]*BOOT:/' \
# 	$xsfiles

etags -o TAGS.tmp -a -d -l c \
	-r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)\([ \t]*PREFIX[ \t]*=[ \t]*\([^ \t]+\)\)?/\2/' \
	-r '/[ \t]*BOOT:/' \
	-r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \
	$xsfiles

#	-r '/MODULE[ \t=]+\(.*PACKAGE[ \t]*=[ \t]*\)?\([^ \t]+\)/\2/' \
#	-r '/MODULE.*PREFIX[ \t]*=[ \t]*\([^ \t]+\)/\1/'	\
#	$xsfiles

etags -o TAGS.tmp -a "$@" $subdirfiles

if ! test -f emacs/cperl-mode.elc ; then
    ( cd emacs; emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el )
fi

# This should work with newer Emaxen

cp TAGS.tmp TAGS
if emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f cperl-add-tags-recurse-noxs ; then
    mv TAGS TAGS.tmp
fi

perl -w014pe '
    $update  = s/^PP\(\177\d+,\d+\n//gm;
    $update += s/^(I?EXT.*[ \t])IINIT[ \t]*\((\177)/$1$2/gm;
    if (/^\n*[^\s,]+\.xs,/s) {
	$mod = $cmod = $bmod = $pref = "";
	s/^(.*\n)\1+/$1/mg;			# Remove duplicate lines
	$_ = join("", map {
	    if (/^MODULE[ \t]*=[ \t]*(\S+)(?:[ \t]+PACKAGE[ \t]*=[ \t]*(\S+))?[ \t\177]/m) {
		$mod = $+;
		($bmod = $mod) =~ tr/:/_/;
		$cmod = "XS_${bmod}_";
		$pref = "";
		if (s/[ \t]+PREFIX[ \t]*=[ \t]*([^\s\177]+)(\177)/$+/) {
		    $pref = $1;
		    $pref =~ s/([^\w\s])/\\$1/g;
		    $pref = "(?:$pref)?";
		}
	    } elsif ($mod ne "") {
		# Ref points for Module::subr, XS_Module_subr, subr
		s/^($pref(\w+)[ \t()]*\177)(\d+,\d+)$/$1${mod}::${2}\01$3\n$1$2\01$3\n$1$cmod$2\01$3/gm;
		# Ref for Module::bootstrap bootstrap boot_Module
		s/^([ \t]*BOOT:\177)(\d+,\d+)$/$1${mod}::bootstrap\01$2\n${1}bootstrap\01$2\n${1}boot_$bmod\01$2/gm;
	    }
	    $_;
	} split(/(\nMODULE[ \t]*=[^\n\177]+\177)/));

	$update = 1;
    }
    if ($update) {
	$chars = chomp;
	s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
	$_ .= ("\f" x $chars);
    }' TAGS.tmp > TAGS.tm2

rm -f TAGS
mv TAGS.tm2 TAGS
rm -f TAGS.tmp
Commit	Line	Data
3ee700d1	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.)
	4	#
	5	# (IZ: to be a happier jumper: install 'imenu-go.el' from
	6	# ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs.)
	7	#
	8	# (Some tags should probably live in their own subdirs, like those in x2p/,
	9	# but I have never been interested in x2p anyway.)
	10	#
	11	# Hallvard B Furuseth <h.b.furuseth@usit.uio.no>, Aug -96.
	12	#
	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.
	16
	17	# Avoid builitin on OS/2:
	18	if test ! -z "$OS2_SHELL"; then alias find=gnufind; fi
	19
	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`"
	24
	25	# What is `etags -d'?
	26
	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";
	31	## PP(pp_const)
	32
	33	set x -d -l c \
	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/'
	37
	38	shift
	39
	40	rm -f TAGS.tmp TAGS.tm2
	41
	42	# Process lines like this: #define MEM_ALIGNBYTES $alignbytes /**/
	43	etags -o TAGS.tmp \
	44	-l none -r '/#\(\$[a-zA-Z_0-9]+\\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
	45	config_h.SH
	46	etags -o TAGS.tmp -a "$@" $topfiles
	47	etags -o TAGS.tmp -a -D -l none -r '/#define.\t\(Perl_.\)/\1/' embed.h
	48
	49	# Add MODULE lines to TAG files (to be postprocessed later),
	50	# and BOOT: lines (in DynaLoader processed twice?)
	51
	52	# This skips too many XSUBs:
	53
	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:/' \
	57	# $xsfiles
	58
	59	etags -o TAGS.tmp -a -d -l c \
	60	-r '/MODULE[ \t=]+\(.PACKAGE[ \t]=[ \t]\)?\([^ \t]+\)\([ \t]PREFIX[ \t]=[ \t]\([^ \t]+\)\)?/\2/' \
	61	-r '/[ \t]*BOOT:/' \
	62	-r '/\([_a-zA-Z][a-zA-Z0-9_:]*\)(/' \
	63	$xsfiles
	64
65	# -r '/MODULE[ \t=]+\(.PACKAGE[ \t]=[ \t]*\)?\([^ \t]+\)/\2/' \
66	# -r '/MODULE.PREFIX[ \t]=[ \t]*\([^ \t]+\)/\1/' \
67	# $xsfiles
68
69	etags -o TAGS.tmp -a "$@" $subdirfiles
70
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 )
73	fi
74
75	# This should work with newer Emaxen
76
77	cp TAGS.tmp TAGS
78	if emacs -batch -q -no-site-file -l emacs/cperl-mode.elc -f cperl-add-tags-recurse-noxs ; then
79	mv TAGS TAGS.tmp
80	fi
81
82	perl -w014pe '
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
88	$_ = join("", map {
89	if (/^MODULE[ \t]=[ \t](\S+)(?:[ \t]+PACKAGE[ \t]=[ \t](\S+))?[ \t\177]/m) {
90	$mod = $+;
91	($bmod = $mod) =~ tr/:/_/;
92	$cmod = "XS_${bmod}_";
93	$pref = "";
94	if (s/[ \t]+PREFIX[ \t]=[ \t]([^\s\177]+)(\177)/$+/) {
95	$pref = $1;
96	$pref =~ s/([^\w\s])/\\$1/g;
97	$pref = "(?:$pref)?";
98	}
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;
104	}
105	$_;
106	} split(/(\nMODULE[ \t]*=[^\n\177]+\177)/));
107
108	$update = 1;
109	}
110	if ($update) {
111	$chars = chomp;
112	s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
113	$_ .= ("\f" x $chars);
114	}' TAGS.tmp > TAGS.tm2
115
116	rm -f TAGS
117	mv TAGS.tm2 TAGS
118	rm -f TAGS.tmp
119
120
121