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46 lines
1.2 KiB
Bash
Executable File
46 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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YACC="$1"
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SRC="$2"
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DEST="$3"
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dir=`dirname $SRC`
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file=`basename $SRC`
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base=`basename $SRC .y`
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if [ -z "$YACC" ]; then
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# if $DEST is more recent than $SRC, we can just touch
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# otherwise we touch but print out warnings
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if [ -r $DEST ]; then
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if [ x`find $SRC -newer $DEST -print` = x$SRC ]; then
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echo "warning: yacc not found - cannot generate $SRC => $DEST" >&2
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echo "warning: yacc not found - only updating the timestamp of $DEST" >&2
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fi
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touch $DEST;
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exit;
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fi
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echo "error: yacc not found - cannot generate $SRC => $DEST" >&2
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exit 1;
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fi
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# if $DEST is more recent than $SRC, we can just touch
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if [ -r $DEST ]; then
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if [ x`find $SRC -newer $DEST -print` != x$SRC ]; then
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touch $DEST;
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exit;
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fi
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fi
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TOP=`pwd`
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echo "info: running $YACC -d $file"
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if cd $dir && $YACC -d $file; then
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if [ -r y.tab.h -a -r y.tab.c ];then
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echo "info: move y.tab.h to $base.h"
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sed -e "/^#/!b" -e "s|y\.tab\.h|$SRC|" -e "s|\"$base.y|\"$SRC|" y.tab.h > $base.h
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echo "info: move y.tab.c to $base.c"
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sed -e "s|y\.tab\.c|$SRC|" -e "s|\"$base.y|\"$SRC|" y.tab.c > $base.c
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rm -f y.tab.c y.tab.h
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elif [ ! -r $base.h -a ! -r $base.c]; then
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echo "$base.h nor $base.c generated."
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exit 1
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fi
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fi
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cd $TOP
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