1 #!/usr/bin/awk -f
2
3 #-
4 # Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
5 # All rights reserved.
6 #
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
9 # are met:
10 # 1. Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
15 #
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 # SUCH DAMAGE.
27 #
28 # $FreeBSD: releng/11.2/sys/teken/gensequences 223574 2011-06-26 18:25:10Z ed $
29
30 function die(msg) {
31 print msg;
32 exit 1;
33 }
34
35 function cchar(str) {
36 if (str == "^[")
37 return "\\x1B";
38
39 return str;
40 }
41
42 BEGIN {
43 FS = "\t+"
44
45 while (getline > 0) {
46 if (NF == 0 || $1 ~ /^#/)
47 continue;
48
49 if (NF != 3 && NF != 4)
50 die("Invalid line layout: " NF " columns");
51
52 split($3, sequence, " +");
53 nsequences = 0;
54 for (s in sequence)
55 nsequences++;
56
57 prefix = "";
58 l_prefix_name[""] = "teken_state_init";
59 for (i = 1; i < nsequences; i++) {
60 n = prefix sequence[i];
61 l_prefix_parent[n] = prefix;
62 l_prefix_suffix[n] = sequence[i];
63 if (!l_prefix_name[n])
64 l_prefix_name[n] = "teken_state_" ++npr;
65 prefix = n;
66 }
67
68 suffix = sequence[nsequences];
69 cmd = prefix suffix;
70
71 # Fill lists
72 if (l_cmd_name[cmd] != "")
73 die(cmd " already exists");
74 l_cmd_prefix[cmd] = prefix;
75 l_cmd_suffix[cmd] = suffix;
76 l_cmd_args[cmd] = $4;
77 l_cmd_abbr[cmd] = $1;
78 l_cmd_name[cmd] = $2;
79 l_cmd_c_name[cmd] = "teken_subr_" tolower($2);
80 gsub(" ", "_", l_cmd_c_name[cmd]);
81
82 if ($4 != "")
83 l_prefix_numbercmds[prefix]++;
84 }
85
86 print "/* Generated file. Do not edit. */";
87 print "";
88
89 for (p in l_prefix_name) {
90 if (l_prefix_name[p] != "teken_state_init")
91 print "static teken_state_t " l_prefix_name[p] ";";
92 }
93
94 for (p in l_prefix_name) {
95 print "";
96 print "/* '" p "' */";
97 print "static void";
98 print l_prefix_name[p] "(teken_t *t, teken_char_t c)";
99 print "{";
100
101 if (l_prefix_numbercmds[p] > 0) {
102 print "";
103 print "\tif (teken_state_numbers(t, c))";
104 print "\t\treturn;";
105 }
106
107 print "";
108 print "\tswitch (c) {";
109 for (c in l_cmd_prefix) {
110 if (l_cmd_prefix[c] != p)
111 continue;
112
113 print "\tcase '" cchar(l_cmd_suffix[c]) "': /* " l_cmd_abbr[c] ": " l_cmd_name[c] " */";
114
115 if (l_cmd_args[c] == "v") {
116 print "\t\t" l_cmd_c_name[c] "(t, t->t_curnum, t->t_nums);";
117 } else {
118 printf "\t\t%s(t", l_cmd_c_name[c];
119 split(l_cmd_args[c], args, " ");
120 for (a = 1; args[a] != ""; a++) {
121 if (args[a] == "n")
122 printf ", (t->t_curnum < %d || t->t_nums[%d] == 0) ? 1 : t->t_nums[%d]", a, (a - 1), (a - 1);
123 else if (args[a] == "r")
124 printf ", t->t_curnum < %d ? 0 : t->t_nums[%d]", a, (a - 1);
125 else
126 die("Invalid argument type: " args[a]);
127 }
128 print ");";
129 }
130 print "\t\tbreak;";
131 }
132 for (pc in l_prefix_parent) {
133 if (l_prefix_parent[pc] != p)
134 continue;
135 print "\tcase '" cchar(l_prefix_suffix[pc]) "':";
136 print "\t\tteken_state_switch(t, " l_prefix_name[pc] ");";
137 print "\t\treturn;";
138 }
139
140 print "\tdefault:";
141 if (l_prefix_name[p] == "teken_state_init") {
142 print "\t\tteken_subr_regular_character(t, c);";
143 } else {
144 print "\t\tteken_printf(\"Unsupported sequence in " l_prefix_name[p] ": %u\\n\", (unsigned int)c);";
145 }
146 print "\t\tbreak;";
147
148 print "\t}";
149
150 if (l_prefix_name[p] != "teken_state_init") {
151 print "";
152 print "\tteken_state_switch(t, teken_state_init);";
153 }
154 print "}";
155 }
156
157 }
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