changeset 16863:47b969df6626

autoupdate
author Karl Berry <karl@freefriends.org>
date Sun, 20 May 2012 09:18:24 -0700
parents e07426642eaa
children a5e99ec857bb
files build-aux/ylwrap
diffstat 1 files changed, 19 insertions(+), 12 deletions(-) [+]
line wrap: on
line diff
old mode 100755
new mode 100644
--- a/build-aux/ylwrap
+++ b/build-aux/ylwrap
@@ -62,10 +62,25 @@
     ;;
 esac
 
+get_dirname ()
+{
+  case $1 in
+    */*|*\\*) printf '%s\n' "$1" | sed -e 's,\([\\/]\)[^\\/]*$,\1,';;
+    # Otherwise,  we want the empty string (not ".").
+  esac
+}
+
+quote_for_sed ()
+{
+  # FIXME: really we should care about more than '.' and '\'.
+  sed -e 's,[\\.],\\&,g'
+}
 
 # The input.
 input="$1"
 shift
+# We'll later need for a correct munging of "#line" directives.
+input_sub_rx=`get_dirname "$input" | quote_for_sed`
 case "$input" in
   [\\/]* | ?:[\\/]*)
     # Absolute path; do nothing.
@@ -125,11 +140,7 @@
     y_tab_nodot="yes"
   fi
 
-  # The directory holding the input.
-  input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
-  # Quote $INPUT_DIR so we can use it in a regexp.
-  # FIXME: really we should care about more than '.' and '\'.
-  input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
+  input_rx=`get_dirname "$input" | quote_for_sed`
 
   while test "$#" -ne 0; do
     from="$1"
@@ -161,15 +172,11 @@
         realtarget="$target"
         target="tmp-`echo $target | sed s/.*[\\/]//g`"
       fi
-      # Edit out '#line' or '#' directives.
-      #
+      # Munge "#line" or "#" directives.
       # We don't want the resulting debug information to point at
-      # an absolute srcdir; it is better for it to just mention the
-      # .y file with no path.
-      #
+      # an absolute srcdir.
       # We want to use the real output file name, not yy.lex.c for
       # instance.
-      #
       # We want the include guards to be adjusted too.
       FROM=`echo "$from" | sed \
             -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
@@ -178,7 +185,7 @@
             -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
             -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
 
-      sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
+      sed -e "/^#/!b" -e "s,$input_rx,$input_sub_rx," -e "s,$from,$2," \
           -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
 
       # Check whether header files must be updated.