#! /bin/sh
# ylwrap - wrapper for lex/yacc invocations.
-scriptversion=2012-07-13.14; # UTC
+scriptversion=2013-01-12.17; # UTC
-# Copyright (C) 1996-2012 Free Software Foundation, Inc.
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
#
# Written by Tom Tromey <tromey@cygnus.com>.
#
# guard FILE
# ----------
# The CPP macro used to guard inclusion of FILE.
-guard()
+guard ()
{
- printf '%s\n' "$from" \
- | sed \
- -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
- -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'
+ printf '%s\n' "$1" \
+ | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+ -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' \
+ -e 's/__*/_/g'
}
# quote_for_sed [STRING]
# The input.
-input="$1"
+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
+case $input in
[\\/]* | ?:[\\/]*)
# Absolute path; do nothing.
;;
*)
# Relative path. Make it absolute.
- input="`pwd`/$input"
+ input=`pwd`/$input
;;
esac
+input_rx=`get_dirname "$input" | quote_for_sed`
# Since DOS filename conventions don't allow two dots,
# the DOS version of Bison writes out y_tab.c instead of y.tab.c
y_tab_nodot=true
fi
-# The list of file to rename: FROM TO...
-pairlist=
+# The parser itself, the first file, is the destination of the .y.c
+# rule in the Makefile.
+parser=$1
+
# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
# instance, we rename #include "y.tab.h" into #include "parse.h"
# during the conversion from y.tab.c to parse.c.
-rename_sed=
-while test "$#" -ne 0; do
- if test "$1" = "--"; then
+sed_fix_filenames=
+
+# Also rename header guards, as Bison 2.7 for instance uses its header
+# guard in its implementation file.
+sed_fix_header_guards=
+
+while test $# -ne 0; do
+ if test x"$1" = x"--"; then
shift
break
fi
shift
to=$1
shift
- pairlist="$pairlist $from $to"
- rename_sed="${rename_sed}s|"`quote_for_sed "$from"`"|$to|g;"
+ sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
+ sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
done
# The program to run.
-prog="$1"
+prog=$1
shift
# Make any relative path in $prog absolute.
-case "$prog" in
+case $prog in
[\\/]* | ?:[\\/]*) ;;
- *[\\/]*) prog="`pwd`/$prog" ;;
+ *[\\/]*) prog=`pwd`/$prog ;;
esac
-# FIXME: add hostname here for parallel makes that run commands on
-# other machines. But that might take us over the 14-char limit.
dirname=ylwrap$$
do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
ret=$?
if test $ret -eq 0; then
- set X $pairlist
- shift
- first=yes
-
- input_rx=`get_dirname "$input" | quote_for_sed`
-
- while test "$#" -ne 0; do
- from=$1
- to=$2
+ for from in *
+ do
+ to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
if test -f "$from"; then
# If $2 is an absolute path name, then just use that,
# otherwise prepend '../'.
case $to in
[\\/]* | ?:[\\/]*) target=$to;;
- *) target="../$to";;
+ *) target=../$to;;
esac
# Do not overwrite unchanged header files to avoid useless
- # recompilations. Always update the parser itself (the first
- # file): it is the destination of the .y.c rule in the Makefile.
- # Divert the output of all other files to a temporary file so we
- # can compare them to existing versions.
- if test $first = no; then
- realtarget="$target"
- target=tmp-`printf '%s\n' "$target" | sed s/.*[\\/]//g`
+ # recompilations. Always update the parser itself: it is the
+ # destination of the .y.c rule in the Makefile. Divert the
+ # output of all other files to a temporary file so we can
+ # compare them to existing versions.
+ if test $from != $parser; then
+ realtarget=$target
+ target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
fi
# Munge "#line" or "#" directives. Don't let the resulting
# debug information point at an absolute srcdir. Use the real
# output file name, not yy.lex.c for instance. Adjust the
# include guards too.
- FROM=`guard "$from"`
- TARGET=`guard "$to"`
- sed -e "/^#/!b" -e "s|$input_rx|$input_sub_rx|" -e "$rename_sed" \
- -e "s|$FROM|$TARGET|" "$from" >"$target" || ret=$?
-
- # Check whether header files must be updated.
- if test $first = no; then
+ sed -e "/^#/!b" \
+ -e "s|$input_rx|$input_sub_rx|" \
+ -e "$sed_fix_filenames" \
+ -e "$sed_fix_header_guards" \
+ "$from" >"$target" || ret=$?
+
+ # Check whether files must be updated.
+ if test "$from" != "$parser"; then
if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
echo "$to is unchanged"
rm -f "$target"
fi
fi
else
- # A missing file is only an error for the first file. This
- # is a blatant hack to let us support using "yacc -d". If -d
- # is not specified, we don't want an error when the header
- # file is "missing".
- if test $first = yes; then
+ # A missing file is only an error for the parser. This is a
+ # blatant hack to let us support using "yacc -d". If -d is not
+ # specified, don't fail when the header file is "missing".
+ if test "$from" = "$parser"; then
ret=1
fi
fi
- shift
- shift
- first=no
done
-else
- ret=$?
fi
# Remove the directory.
projects / platform / upstream / automake.git / blobdiff