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genhash revision 1.1 
      1 #!/bin/sh
      2 # $NetBSD: genhash,v 1.1 2010/02/03 15:16:32 roy Exp $
      3 
      4 # Copyright (c) 2009 The NetBSD Foundation, Inc.
      5 #
      6 # This code is derived from software contributed to The NetBSD Foundation
      7 # by Roy Marples.
      8 #
      9 # Redistribution and use in source and binary forms, with or without
     10 # modification, are permitted provided that the following conditions
     11 # are met:
     12 # 1. Redistributions of source code must retain the above copyright
     13 #    notice, this list of conditions and the following disclaimer.
     14 # 2. Redistributions in binary form must reproduce the above copyright
     15 #    notice, this list of conditions and the following disclaimer in the
     16 #    documentation and/or other materials provided with the distribution.
     17 #
     18 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 
     30 # Generate string and hash tables for our terminfo strings in term.h
     31 # We don't expose the hash or tables directly, but instead via functions.
     32 # This allows use to freely change how we hash or store our string tables
     33 # in the future.
     34 
     35 : ${TOOL_AWK:=awk}
     36 : ${TOOL_NBPERF:=nbperf}
     37 : ${TOOL_SED:=sed}
     38 
     39 TERMH=${1:-term.h}
     40 
     41 genent()
     42 {
     43 	local name=$1 NAME=$2 len=
     44 
     45 	# Calculate the maximum word length plus terminator
     46 	len=`$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     47             -e 's/.*TICODE_\([^,]*\).*/\1X/' $TERMH | \
     48 	    $TOOL_AWK 'BEGIN {L=0} {if (length($1)>L) L=length($1)} END {print L}'`
     49 
     50 	echo
     51 	echo "static const char _ti_${name}ids[][${len}] = {"
     52 	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     53             -e 's/.*TICODE_\([^,]*\).*/	"\1",/' $TERMH
     54 	echo "};"
     55 	echo
     56 	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     57 	    -e 's/.*TICODE_\([^,]*\).*/\1/' $TERMH | \
     58 	    $TOOL_NBPERF -sn _ti_${name}hash;
     59 
     60 	cat <<EOF
     61 
     62 const char *
     63 _ti_${name}id(ssize_t idx)
     64 {
     65 
     66 	if ((size_t)idx > __arraycount(_ti_${name}ids))
     67 		return NULL;
     68 	return _ti_${name}ids[idx];
     69 }
     70 
     71 ssize_t
     72 _ti_${name}index(const char *key)
     73 {
     74 	uint32_t idx;
     75 
     76 	idx = _ti_${name}hash((const unsigned char *)key, strlen(key));
     77 	if (idx > __arraycount(_ti_${name}ids) ||
     78 	    strcmp(key, _ti_${name}ids[idx]) != 0)
     79 		return -1;
     80 	return idx;
     81 }
     82 EOF
     83 }
     84 
     85 cat <<EOF
     86 /* \$NetBSD\$ */
     87 /* DO NOT EDIT
     88  * Automatically generated from term.h */
     89 
     90 #include <sys/cdefs.h>
     91 __RCSID("\$NetBSD: genhash,v 1.1 2010/02/03 15:16:32 roy Exp $");
     92 
     93 #include <sys/types.h>
     94 
     95 #include <stdlib.h>
     96 #include <string.h>
     97 #include <term_private.h>
     98 #include <term.h>
     99 EOF
    100 
    101 genent flag FLAG
    102 genent num NUM
    103 genent str STR
    104