diff options
Diffstat (limited to 'src/kash/mknodes.sh')
| -rwxr-xr-x | src/kash/mknodes.sh | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/src/kash/mknodes.sh b/src/kash/mknodes.sh new file mode 100755 index 0000000..f11fc2e --- /dev/null +++ b/src/kash/mknodes.sh @@ -0,0 +1,232 @@ +#! /bin/sh +# $NetBSD: mknodes.sh,v 1.1 2004/01/16 23:24:38 dsl Exp $ + +# Copyright (c) 2003 The NetBSD Foundation, Inc. +# All rights reserved. +# +# This code is derived from software contributed to The NetBSD Foundation +# by David Laight. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. Neither the name of The NetBSD Foundation nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS +# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. + +nodetypes=$1 +nodes_pat=$2 +objdir="$3" + +exec <$nodetypes +exec >$objdir/nodes.h.tmp + +echo "/*" +echo " * This file was generated by mknodes.sh" +echo " */" +echo + +tagno=0 +while IFS=; read -r line; do + line="${line%%#*}" + IFS=' ' + set -- $line + IFS= + [ -z "$2" ] && continue + case "$line" in + [" "]* ) + IFS=' ' + [ $field = 0 ] && struct_list="$struct_list $struct" + eval field_${struct}_$field=\"\$*\" + eval numfld_$struct=\$field + field=$(($field + 1)) + ;; + * ) + define=$1 + struct=$2 + echo "#define $define $tagno" + tagno=$(($tagno + 1)) + eval define_$struct=\"\$define_$struct \$define\" + struct_define="$struct_define $struct" + field=0 + ;; + esac +done + +echo + +## @todo inconsistent indentation here. +IFS=' ' +for struct in $struct_list; do + echo + echo + echo "struct $struct {" + echo "#ifdef KASH_SEPARATE_PARSER_ALLOCATOR" + echo " struct pstack_block *pblock;" + echo "#endif" + field=0 + while + eval line=\"\$field_${struct}_$field\" + field=$(($field + 1)) + [ -n "$line" ] + do + IFS=' ' + set -- $line + name=$1 + case $2 in + nodeptr ) type="union node *";; + nodelist ) type="struct nodelist *";; + string ) type="char *";; + int ) type="int ";; + * ) name=; shift 2; type="$*";; + esac + echo " $type$name;" + done + echo "};" +done + +echo +echo +echo "union node {" +echo "#ifdef KASH_SEPARATE_PARSER_ALLOCATOR" +echo "# ifdef __GNUC__" +echo " __extension__" +echo "# endif" +echo " struct {" +echo " struct pstack_block *pblock;" +echo " int type;" +echo " };" +echo "#else" +echo " int type;" +echo "#endif" +for struct in $struct_list; do + echo " struct $struct $struct;" +done +echo "};" +echo +echo +echo "struct nodelist {" +echo " struct nodelist *next;" +echo " union node *n;" +echo "};" +echo +echo +echo "union node *copyfunc(struct shinstance *, union node *);" +echo "void freefunc(struct shinstance *, union node *);" + +exec <$nodes_pat +exec >$objdir/nodes.c.tmp +mv -f $objdir/nodes.h.tmp $objdir/nodes.h || exit 1 + +echo "/*" +echo " * This file was generated by mknodes.sh" +echo " */" +echo + +while IFS=; read -r line; do + IFS=' ' + set -- $line + IFS= + case "$1" in + '%SIZES' ) + echo "static const short nodesize[$tagno] = {" + IFS=' ' + for struct in $struct_define; do + echo " SHELL_ALIGN(sizeof (struct $struct))," + done + echo "};" + ;; + '%CALCSIZE' ) + echo " if (n == NULL)" + echo " return;" + echo " funcblocksize += nodesize[n->type];" + echo " switch (n->type) {" + IFS=' ' + for struct in $struct_list; do + eval defines=\"\$define_$struct\" + for define in $defines; do + echo " case $define:" + done + eval field=\$numfld_$struct + while + [ $field != 0 ] + do + eval line=\"\$field_${struct}_$field\" + field=$(($field - 1)) + IFS=' ' + set -- $line + name=$1 + cl=")" + case $2 in + nodeptr ) fn=calcsize;; + nodelist ) fn=sizenodelist;; + string ) fn="funcstringsize += strlen" + cl=") + 1";; + * ) continue;; + esac + echo " ${fn}(n->$struct.$name${cl};" + done + echo " break;" + done + echo " };" + ;; + '%COPY' ) + echo " if (n == NULL)" + echo " return NULL;" + echo " new = funcblock;" + echo " funcblock = (char *) funcblock + nodesize[n->type];" + echo " switch (n->type) {" + IFS=' ' + for struct in $struct_list; do + eval defines=\"\$define_$struct\" + for define in $defines; do + echo " case $define:" + done + eval field=\$numfld_$struct + while + [ $field != 0 ] + do + eval line=\"\$field_${struct}_$field\" + field=$(($field - 1)) + IFS=' ' + set -- $line + name=$1 + case $2 in + nodeptr ) fn="copynode(";; + nodelist ) fn="copynodelist(";; + string ) fn="nodesavestr(";; + int ) fn=;; + temp ) echo "unexpected 'temp' node type" >&2; exit 2;; + * ) continue;; + esac + f="$struct.$name" + echo " new->$f = ${fn}n->$f${fn:+)};" + done + echo " break;" + done + echo " };" + echo " new->type = n->type;" + ;; + * ) echo "$line";; + esac +done + +exec >/dev/null +mv -f $objdir/nodes.c.tmp $objdir/nodes.c || exit 1 |