#!/usr/bin/awk -f
#-
# Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
# All rights reserved.
#
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
function die(msg) {
print msg;
exit 1;
}
function cchar(str) {
if (str == "^[")
return "\\x1B";
return str;
}
BEGIN {
FS = "\t+"
while (getline > 0) {
if (NF == 0 || $1 ~ /^#/)
continue;
if (NF != 3 && NF != 4)
die("Invalid line layout: " NF " columns");
split($3, sequence, " +");
nsequences = 0;
for (s in sequence)
nsequences++;
prefix = "";
l_prefix_name[""] = "teken_state_init";
for (i = 1; i < nsequences; i++) {
n = prefix sequence[i];
l_prefix_parent[n] = prefix;
l_prefix_suffix[n] = sequence[i];
if (!l_prefix_name[n])
l_prefix_name[n] = "teken_state_" ++npr;
prefix = n;
}
suffix = sequence[nsequences];
cmd = prefix suffix;
# Fill lists
if (l_cmd_name[cmd] != "")
die(cmd " already exists");
l_cmd_prefix[cmd] = prefix;
l_cmd_suffix[cmd] = suffix;
l_cmd_args[cmd] = $4;
l_cmd_abbr[cmd] = $1;
l_cmd_name[cmd] = $2;
l_cmd_c_name[cmd] = "teken_subr_" tolower($2);
gsub(" ", "_", l_cmd_c_name[cmd]);
if ($4 != "")
l_prefix_numbercmds[prefix]++;
}
print "/* Generated file. Do not edit. */";
print "";
for (p in l_prefix_name) {
if (l_prefix_name[p] != "teken_state_init")
print "static teken_state_t " l_prefix_name[p] ";";
}
for (p in l_prefix_name) {
print "";
print "/* '" p "' */";
print "static void";
print l_prefix_name[p] "(teken_t *t, teken_char_t c)";
print "{";
if (l_prefix_numbercmds[p] > 0) {
print "";
print "\tif (teken_state_numbers(t, c))";
print "\t\treturn;";
}
print "";
print "\tswitch (c) {";
for (c in l_cmd_prefix) {
if (l_cmd_prefix[c] != p)
continue;
print "\tcase '" cchar(l_cmd_suffix[c]) "': /* " l_cmd_abbr[c] ": " l_cmd_name[c] " */";
if (l_cmd_args[c] == "v") {
print "\t\t" l_cmd_c_name[c] "(t, t->t_curnum, t->t_nums);";
} else {
printf "\t\t%s(t", l_cmd_c_name[c];
split(l_cmd_args[c], args, " ");
for (a = 1; args[a] != ""; a++) {
if (args[a] == "n")
printf ", (t->t_curnum < %d || t->t_nums[%d] == 0) ? 1 : t->t_nums[%d]", a, (a - 1), (a - 1);
else if (args[a] == "r")
printf ", t->t_curnum < %d ? 0 : t->t_nums[%d]", a, (a - 1);
else
die("Invalid argument type: " args[a]);
}
print ");";
}
print "\t\tbreak;";
}
for (pc in l_prefix_parent) {
if (l_prefix_parent[pc] != p)
continue;
print "\tcase '" cchar(l_prefix_suffix[pc]) "':";
print "\t\tteken_state_switch(t, " l_prefix_name[pc] ");";
print "\t\treturn;";
}
print "\tdefault:";
if (l_prefix_name[p] == "teken_state_init") {
print "\t\tteken_subr_regular_character(t, c);";
} else {
print "\t\tteken_printf(\"Unsupported sequence in " l_prefix_name[p] ": %u\\n\", (unsigned int)c);";
}
print "\t\tbreak;";
print "\t}";
if (l_prefix_name[p] != "teken_state_init") {
print "";
print "\tteken_state_switch(t, teken_state_init);";
}
print "}";
}
}
