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#! /bin/sh |
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# ylwrap - wrapper for lex/yacc invocations. |
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scriptversion=2012-07-14.08; # UTC |
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scriptversion=2013-01-12.17; # UTC |
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# Copyright (C) 1996-2012 Free Software Foundation, Inc. |
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# Copyright (C) 1996-2013 Free Software Foundation, Inc. |
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# |
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# Written by Tom Tromey <tromey@cygnus.com>. |
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# |
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# guard FILE |
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# ---------- |
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# The CPP macro used to guard inclusion of FILE. |
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guard() |
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guard () |
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{ |
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printf '%s\n' "$from" \ |
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| sed \ |
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-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ |
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-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' |
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printf '%s\n' "$1" \ |
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| sed \ |
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-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \ |
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-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' \ |
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-e 's/__*/_/g' |
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} |
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# quote_for_sed [STRING] |
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# The input. |
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input="$1" |
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input=$1 |
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shift |
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# We'll later need for a correct munging of "#line" directives. |
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input_sub_rx=`get_dirname "$input" | quote_for_sed` |
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case "$input" in |
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case $input in |
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[\\/]* | ?:[\\/]*) |
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# Absolute path; do nothing. |
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;; |
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*) |
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# Relative path. Make it absolute. |
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input="`pwd`/$input" |
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input=`pwd`/$input |
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;; |
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esac |
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input_rx=`get_dirname "$input" | quote_for_sed` |
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# The parser itself, the first file, is the destination of the .y.c |
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# rule in the Makefile. |
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parser=$1 |
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+ |
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# A sed program to s/FROM/TO/g for all the FROM/TO so that, for |
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# instance, we rename #include "y.tab.h" into #include "parse.h" |
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# during the conversion from y.tab.c to parse.c. |
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rename_sed= |
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while test "$#" -ne 0; do |
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if test "$1" = "--"; then |
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sed_fix_filenames= |
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# Also rename header guards, as Bison 2.7 for instance uses its header |
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# guard in its implementation file. |
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sed_fix_header_guards= |
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while test $# -ne 0; do |
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if test x"$1" = x"--"; then |
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shift |
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break |
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fi |
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shift |
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to=$1 |
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shift |
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rename_sed="${rename_sed}s|"`quote_for_sed "$from"`"|$to|g;" |
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sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;" |
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sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;" |
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done |
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# The program to run. |
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prog="$1" |
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prog=$1 |
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shift |
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# Make any relative path in $prog absolute. |
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case "$prog" in |
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case $prog in |
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[\\/]* | ?:[\\/]*) ;; |
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*[\\/]*) prog="`pwd`/$prog" ;; |
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*[\\/]*) prog=`pwd`/$prog ;; |
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esac |
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# FIXME: add hostname here for parallel makes that run commands on |
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# other machines. But that might take us over the 14-char limit. |
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dirname=ylwrap$$ |
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do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret' |
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trap "ret=129; $do_exit" 1 |
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if test $ret -eq 0; then |
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for from in * |
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do |
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to=`printf '%s\n' "$from" | sed "$rename_sed"` |
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to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"` |
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if test -f "$from"; then |
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# If $2 is an absolute path name, then just use that, |
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# otherwise prepend '../'. |
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case $to in |
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[\\/]* | ?:[\\/]*) target=$to;; |
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*) target="../$to";; |
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*) target=../$to;; |
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esac |
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# Do not overwrite unchanged header files to avoid useless |
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# output of all other files to a temporary file so we can |
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# compare them to existing versions. |
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if test $from != $parser; then |
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realtarget="$target" |
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realtarget=$target |
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target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'` |
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fi |
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# debug information point at an absolute srcdir. Use the real |
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# output file name, not yy.lex.c for instance. Adjust the |
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# include guards too. |
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FROM=`guard "$from"` |
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TARGET=`guard "$to"` |
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sed -e "/^#/!b" -e "s|$input_rx|$input_sub_rx|" -e "$rename_sed" \ |
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-e "s|$FROM|$TARGET|" "$from" >"$target" || ret=$? |
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sed -e "/^#/!b" \ |
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-e "s|$input_rx|$input_sub_rx|" \ |
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-e "$sed_fix_filenames" \ |
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-e "$sed_fix_header_guards" \ |
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"$from" >"$target" || ret=$? |
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# Check whether files must be updated. |
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if test "$from" != "$parser"; then |
