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https://github.com/freebsd/freebsd-src
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167 lines
4.2 KiB
Awk
167 lines
4.2 KiB
Awk
#!/usr/bin/awk -f
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#-
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# Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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function die(msg) {
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print msg;
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exit 1;
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}
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function cchar(str) {
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if (str == "^[")
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return "\\x1B";
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if (str == "SP")
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return " ";
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return str;
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}
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function csequence(str) {
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if (str == "SP")
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return " ";
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return str;
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}
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BEGIN {
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FS = "\t+"
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while (getline > 0) {
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if (NF == 0 || $1 ~ /^#/)
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continue;
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if (NF != 3 && NF != 4)
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die("Invalid line layout: " NF " columns");
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split($3, sequence, " +");
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nsequences = 0;
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for (s in sequence)
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nsequences++;
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prefix = "";
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l_prefix_name[""] = "teken_state_init";
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for (i = 1; i < nsequences; i++) {
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n = prefix csequence(sequence[i]);
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l_prefix_parent[n] = prefix;
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l_prefix_suffix[n] = sequence[i];
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if (!l_prefix_name[n])
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l_prefix_name[n] = "teken_state_" ++npr;
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prefix = n;
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}
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suffix = sequence[nsequences];
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cmd = prefix suffix;
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# Fill lists
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if (l_cmd_name[cmd] != "")
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die(cmd " already exists");
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l_cmd_prefix[cmd] = prefix;
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l_cmd_suffix[cmd] = suffix;
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l_cmd_args[cmd] = $4;
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l_cmd_abbr[cmd] = $1;
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l_cmd_name[cmd] = $2;
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l_cmd_c_name[cmd] = "teken_subr_" tolower($2);
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gsub(" ", "_", l_cmd_c_name[cmd]);
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if ($4 != "")
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l_prefix_numbercmds[prefix]++;
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}
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print "/* Generated file. Do not edit. */";
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print "";
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for (p in l_prefix_name) {
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if (l_prefix_name[p] != "teken_state_init")
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print "static teken_state_t " l_prefix_name[p] ";";
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}
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for (p in l_prefix_name) {
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print "";
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print "/* '" p "' */";
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print "static void";
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print l_prefix_name[p] "(teken_t *t, teken_char_t c)";
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print "{";
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if (l_prefix_numbercmds[p] > 0) {
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print "";
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print "\tif (teken_state_numbers(t, c))";
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print "\t\treturn;";
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}
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print "";
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print "\tswitch (c) {";
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for (c in l_cmd_prefix) {
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if (l_cmd_prefix[c] != p)
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continue;
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print "\tcase '" cchar(l_cmd_suffix[c]) "': /* " l_cmd_abbr[c] ": " l_cmd_name[c] " */";
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if (l_cmd_args[c] == "v") {
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print "\t\t" l_cmd_c_name[c] "(t, t->t_curnum, t->t_nums);";
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} else {
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printf "\t\t%s(t", l_cmd_c_name[c];
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split(l_cmd_args[c], args, " ");
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for (a = 1; args[a] != ""; a++) {
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if (args[a] == "n")
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printf ", (t->t_curnum < %d || t->t_nums[%d] == 0) ? 1 : t->t_nums[%d]", a, (a - 1), (a - 1);
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else if (args[a] == "r")
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printf ", t->t_curnum < %d ? 0 : t->t_nums[%d]", a, (a - 1);
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else
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die("Invalid argument type: " args[a]);
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}
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print ");";
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}
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print "\t\tbreak;";
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}
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for (pc in l_prefix_parent) {
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if (l_prefix_parent[pc] != p)
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continue;
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print "\tcase '" cchar(l_prefix_suffix[pc]) "':";
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print "\t\tteken_state_switch(t, " l_prefix_name[pc] ");";
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print "\t\treturn;";
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}
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print "\tdefault:";
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if (l_prefix_name[p] == "teken_state_init") {
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print "\t\tteken_subr_regular_character(t, c);";
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} else {
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print "\t\tteken_printf(\"Unsupported sequence in " l_prefix_name[p] ": %u\\n\", (unsigned int)c);";
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}
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print "\t\tbreak;";
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print "\t}";
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if (l_prefix_name[p] != "teken_state_init") {
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print "";
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print "\tt->t_last = 0;";
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print "\tteken_state_switch(t, teken_state_init);";
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}
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print "}";
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}
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}
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