More ptags tweakage from Stas; now add 'fullpath'

option to get absolute paths.

p4raw-id: //depot/perl@20892

diff --git a/emacs/ptags b/emacs/ptags
index 0ff7836..08a20ce 100755 (executable)
--- a/emacs/ptags
+++ b/emacs/ptags
@@ -2,6 +2,13 @@
 # (``make realclean'' first to avoid generated files, or ``make'' first
 # to get tags from all files.)
 #
+#
+# usage: sh emacs/ptags <options>
+# 
+# options:
+#
+# fullpath - use full paths in TAGS (default: relative to the root)
+#
 # (IZ: to be a happier jumper: install 'imenu-go.el' from
 #      ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs.)
 #
@@ -17,6 +24,16 @@
 # Avoid builtin on OS/2:
 if test ! -z "$OS2_SHELL"; then alias find=gnufind; fi
 
+case "$1" in
+  fullpath)
+    cwd=`pwd`
+    echo "Building TAGS with full paths"
+  ;;
+  *)
+  cwd='.'
+    echo "Building TAGS with relative paths"
+esac
+
 emacs=`(which emacs || which xemacs) 2>/dev/null`
 [ -x "$emacs" ] || { echo "can't find emacs or xemacs in PATH"; exit 1; }
 
@@ -24,11 +41,11 @@ emacs=`(which emacs || which xemacs) 2>/dev/null`
 # 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\|os2ish\.h\|\(globals\|perlapi\| os2\)\.c / /g'`"
-subdirs="`find ./* -maxdepth 0 -type d`"
+topfiles="`echo ' ' *.y *.c *.h ' ' | sed 's/ /  /g' | sed 's/ embedvar\.h\|embed\.h\|perlapi\.h\|os2ish\.h\|\(globals\|perlapi\| os2\)\.c / /g'| sed "s#\(^\| \)\([^ ]\)#\1$cwd/\2#g"`"
+subdirs="`find $cwd/* -maxdepth 0 -type d`"
 subdirfiles="`find $subdirs -name '*.[cy]' -print | sort`"
 subdirfiles1="`find $subdirs -name '*.[hH]' -print | sort`"
-xsfiles="`find . -name '*.xs' -print | sort`"
+xsfiles="`find $cwd/ -name '*.xs' -print | sort`"
 
 # etags -d : process defines too (default now)
 
@@ -55,11 +72,11 @@ 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
+       $cwd/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
+               -r '/^\([a-zA-Z_0-9]+\)[ \t]+(/\1/' $cwd/Porting/Glossary
 
 etags -o TAGS.tmp -a "$@" $topfiles
 
@@ -101,8 +118,8 @@ perl -w014pe 'if (s/^(S_            # 1:   First group
                  $_ .= ("\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 perlapi.c perlapi.h
+etags -o TAGS.tmp -a -D -l none -r '/#define.*\t\(Perl_.*\)/\1/' $cwd/embed.h
+etags -o TAGS.tmp -a $cwd/globals.c $cwd/embedvar.h $cwd/perlapi.c $cwd/perlapi.h
 
 # The above processes created a lot of descriptions with an
 # an explicitly specified tag.  Such descriptions have higher