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      1 #!/bin/sh
      2 # $NetBSD: genhash,v 1.9 2017/01/11 20:53:52 roy Exp $
      3 
      4 # Copyright (c) 2009, 2011 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 us to freely change how we hash or store our string tables
     33 # in the future.
     34 
     35 set -e
     36 : ${TOOL_AWK:=awk}
     37 : ${TOOL_NBPERF:=nbperf}
     38 : ${TOOL_SED:=sed}
     39 
     40 TERMH=${1:-term.h}
     41 
     42 genent()
     43 {
     44 	local name=$1 NAME=$2 len=
     45 
     46 	# Calculate the maximum word length plus terminator
     47 	len=$($TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     48             -e 's/.*TICODE_\([^,]*\).*/\1X/' $TERMH | \
     49 	    $TOOL_AWK \
     50 	    'BEGIN {L=0} {if (length($1)>L) L=length($1)} END {print L}')
     51 
     52 	echo
     53 	echo "static const char _ti_${name}ids[][${len}] = {"
     54 	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     55             -e 's/.*TICODE_\([^,]*\).*/	"\1",/' $TERMH
     56 	echo "};"
     57 	echo
     58 	$TOOL_SED -e "1,/enum TI${NAME}/d" -e '/};/,$d' \
     59 	    -e 's/.*TICODE_\([^,]*\).*/\1/' $TERMH | \
     60 	    $TOOL_NBPERF -p -s -n _ti_${name}hash;
     61 
     62 	cat <<EOF
     63 
     64 const char *
     65 _ti_${name}id(ssize_t idx)
     66 {
     67 
     68 	if ((size_t)idx >= __arraycount(_ti_${name}ids))
     69 		return NULL;
     70 	return _ti_${name}ids[idx];
     71 }
     72 
     73 ssize_t
     74 _ti_${name}index(const char *key)
     75 {
     76 	uint32_t idx;
     77 
     78 	idx = _ti_${name}hash((const unsigned char *)key, strlen(key));
     79 	if (idx >= __arraycount(_ti_${name}ids) ||
     80 	    strcmp(key, _ti_${name}ids[idx]) != 0)
     81 		return -1;
     82 	return idx;
     83 }
     84 EOF
     85 }
     86 
     87 cat <<EOF
     88 /* DO NOT EDIT
     89  * Automatically generated from term.h */
     90 
     91 #if HAVE_NBTOOL_CONFIG_H
     92 #include "nbtool_config.h"
     93 #endif
     94 
     95 #include <stdint.h>
     96 #include <stdlib.h>
     97 #include <string.h>
     98 #include <term_private.h>
     99 #include <term.h>
    100 EOF
    101 
    102 genent flag FLAG
    103 genent num NUM
    104 genent str STR
    105