X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=emacs%2Fptags;h=1054ac11de2d167ba6b3d8391680d33a61436d4b;hb=95e8664e86da93255f26600f44bbbd70bf5b5b0e;hp=8831988c928c7b033f60a353cb6da0a34915de91;hpb=3ee700d1417d4c874074ae89df62860d55ace0cc;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/emacs/ptags b/emacs/ptags
index 8831988..1054ac1 100755
--- a/emacs/ptags
+++ b/emacs/ptags
@@ -14,25 +14,35 @@
 #   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:
+# Avoid builtin 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 )`"
+# Move autogenerated less-informative files to the end:
+# Hard to do embed.h and embedvar.h in one sweep:
+
+topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ /  /g' | sed 's/ embedvar\.h\|embed\.h\|perlapi\.h\|obj\(pp\|XSUB\)\.h\|\(globals\|perlapi\)\.c / /g'`"
+subdirs="`find ./* -maxdepth 0 -type d`"
+subdirfiles="`find $subdirs -name '*.[cy]' -print | sort`"
+subdirfiles1="`find $subdirs -name '*.[hH]' -print | sort`"
 xsfiles="`find . -name '*.xs' -print | sort`"
 
-# What is `etags -d'?
+# etags -d : process defines too (default now)
 
 # 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)
+## PERLVARI(Grsfp, PerlIO *, Nullfp)
+## PERLVAR(cvcache,      HV *)
 
+# Putting PL_\1 in the substitution line makes etags dump core
+# Thus we do it later (but 20.2.92 does it OK).
 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 '/PERLVAR[a-zA-Z_0-9]*[ \t]*([ \t]*[GIT]?\([a-zA-Z_][a-zA-Z_0-9]*\)[ \t]*[\[,]/\1/'  \
 	-r '/PP[ \t]*([ \t]*\([^ \t()]*\)[ \t]*)/\1/'
 
 shift
@@ -43,8 +53,69 @@ rm -f TAGS.tmp TAGS.tm2
 etags -o TAGS.tmp \
 	-l none -r '/#\(\$[a-zA-Z_0-9]+\|define\)[ \t]+\([a-zA-Z_0-9]+\)/\2/' \
 	config_h.SH
+# Process lines like this: Mcc (Loc.U):
+etags -o TAGS.tmp -a \
+	-l none -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\$\1/' \
+		-r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\1/' Porting/Glossary
+
 etags -o TAGS.tmp -a "$@" $topfiles
+
+# Now add these PL_:
+perl -w014pe 'if (s/^( .* PERLVAR A?I?	# 1:   TAG group
+		       \s* \( \s* [GIT] #
+		       .*		#
+		     \x7F		#      End of description
+		     ) 
+		     ( .* \x01 )	# 2:   Exact group
+		   /${1}PL_$2/mgx) {	# Add PL_
+		  $chars = chomp;
+		  s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
+		  $_ .= ("\f" x $chars);
+	      }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
+
+
+# Now remove these Perl_, add empty- and perl_-flavors:
+perl -w014pe 'if (s/^(Perl_		# 1:   First group
+		       (\w+) \(		# 2:   Stripped name
+		       \x7F		#      End of description
+		     )			#      End of description
+		     (\d+,\d+\n)	# 3:   TAGS Trail
+		   /$1$3$1$2\x01$3$1perl_$2\x01$3/mgx) {	# Repeat, add empty and perl_ flavors
+		  $chars = chomp;
+		  s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
+		  $_ .= ("\f" x $chars);
+	      }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
+
+# Now remove these S_, add empty-flavor:
+perl -w014pe 'if (s/^(S_		# 1:   First group
+		       (\w+) \(		# 2:   Stripped name
+		       \x7F		#      End of description
+		     )			#      End of description
+		     (\d+,\d+\n)	# 3:   TAGS Trail
+		   /$1$3$1$2\x01$3/mgx) {	# Repeat, add empty_ flavor
+		  $chars = chomp;
+		  s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
+		  $_ .= ("\f" x $chars);
+	      }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
+
 etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' embed.h
+etags -o TAGS.tmp -a globals.c embedvar.h objXSUB.h perlapi.c perlapi.h
+
+# The above processes created a lot of descriptions with an
+# an explicitly specified tag.  Such descriptions have higher
+# precedence than descriptions without an explicitely specified tag.
+# To restore the justice, make all the descriptions explicit.
+perl -w014pe 'if (s/^( [^\n\x7F\x01]*\b	# 1:   TAG group
+	               (\w+)		#   2: word
+		       [^\w\x7F\x01\n]*	#      Most anything
+		       \x7F		#      End of description
+		     )
+		     (\d+,\d+\n)	# 3:   TAGS Trail
+		   /$1$2\x01$3/mgx) {	# Add specific marking
+		  $chars = chomp;
+		  s/^((\n.+,)\d+)/ $2 . (length($_) - length($1) - 1) /e;
+		  $_ .= ("\f" x $chars);
+	      }' TAGS.tmp > TAGS.tm1 && mv TAGS.tm1 TAGS.tmp
 
 # Add MODULE lines to TAG files (to be postprocessed later),
 #   and BOOT: lines (in DynaLoader processed twice?)
@@ -67,8 +138,9 @@ etags -o TAGS.tmp -a -d -l c \
 #	$xsfiles
 
 etags -o TAGS.tmp -a "$@" $subdirfiles
+etags -o TAGS.tmp -a "$@" $subdirfiles1
 
-if ! test -f emacs/cperl-mode.elc ; then
+if test ! -f emacs/cperl-mode.elc ; then
     ( cd emacs; emacs -batch -q -no-site-file -f batch-byte-compile cperl-mode.el )
 fi