The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/teken/gensequences

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
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    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 # $FreeBSD$
   29 
   30 function die(msg) {
   31         print msg;
   32         exit 1;
   33 }
   34 
   35 function cchar(str) {
   36         if (str == "^[")
   37                 return "\\x1B";
   38         if (str == "SP")
   39                 return " ";
   40 
   41         return str;
   42 }
   43 
   44 function csequence(str) {
   45         if (str == "SP")
   46                 return " ";
   47 
   48         return str;
   49 }
   50 
   51 BEGIN {
   52 FS = "\t+"
   53 
   54 while (getline > 0) {
   55         if (NF == 0 || $1 ~ /^#/)
   56                 continue;
   57 
   58         if (NF != 3 && NF != 4)
   59                 die("Invalid line layout: " NF " columns");
   60 
   61         split($3, sequence, " +");
   62         nsequences = 0;
   63         for (s in sequence)
   64                 nsequences++;
   65 
   66         prefix = "";
   67         l_prefix_name[""] = "teken_state_init";
   68         for (i = 1; i < nsequences; i++) {
   69                 n = prefix csequence(sequence[i]);
   70                 l_prefix_parent[n] = prefix;
   71                 l_prefix_suffix[n] = sequence[i];
   72                 if (!l_prefix_name[n])
   73                         l_prefix_name[n] = "teken_state_" ++npr;
   74                 prefix = n;
   75         }
   76 
   77         suffix = sequence[nsequences];
   78         cmd = prefix suffix;
   79 
   80         # Fill lists
   81         if (l_cmd_name[cmd] != "")
   82                 die(cmd " already exists");
   83         l_cmd_prefix[cmd] = prefix;
   84         l_cmd_suffix[cmd] = suffix;
   85         l_cmd_args[cmd] = $4;
   86         l_cmd_abbr[cmd] = $1;
   87         l_cmd_name[cmd] = $2;
   88         l_cmd_c_name[cmd] = "teken_subr_" tolower($2);
   89         gsub(" ", "_", l_cmd_c_name[cmd]);
   90 
   91         if ($4 != "")
   92                 l_prefix_numbercmds[prefix]++;
   93 }
   94 
   95 print "/* Generated file. Do not edit. */";
   96 print "";
   97 
   98 for (p in l_prefix_name) {
   99         if (l_prefix_name[p] != "teken_state_init")
  100                 print "static teken_state_t     " l_prefix_name[p] ";";
  101 }
  102 
  103 for (p in l_prefix_name) {
  104         print "";
  105         print "/* '" p "' */";
  106         print "static void";
  107         print l_prefix_name[p] "(teken_t *t, teken_char_t c)";
  108         print "{";
  109 
  110         if (l_prefix_numbercmds[p] > 0) {
  111                 print "";
  112                 print "\tif (teken_state_numbers(t, c))";
  113                 print "\t\treturn;";
  114         }
  115 
  116         print "";
  117         print "\tswitch (c) {";
  118         for (c in l_cmd_prefix) {
  119                 if (l_cmd_prefix[c] != p)
  120                         continue;
  121 
  122                 print "\tcase '" cchar(l_cmd_suffix[c]) "': /* " l_cmd_abbr[c] ": " l_cmd_name[c] " */";
  123 
  124                 if (l_cmd_args[c] == "v") {
  125                         print "\t\t" l_cmd_c_name[c] "(t, t->t_curnum, t->t_nums);";
  126                 } else {
  127                         printf "\t\t%s(t", l_cmd_c_name[c];
  128                         split(l_cmd_args[c], args, " ");
  129                         for (a = 1; args[a] != ""; a++) {
  130                                 if (args[a] == "n")
  131                                         printf ", (t->t_curnum < %d || t->t_nums[%d] == 0) ? 1 : t->t_nums[%d]", a, (a - 1), (a - 1);
  132                                 else if (args[a] == "r")
  133                                         printf ", t->t_curnum < %d ? 0 : t->t_nums[%d]", a, (a - 1);
  134                                 else
  135                                         die("Invalid argument type: " args[a]);
  136                         }
  137                         print ");";
  138                 }
  139                 print "\t\tbreak;";
  140         }
  141         for (pc in l_prefix_parent) {
  142                 if (l_prefix_parent[pc] != p)
  143                         continue;
  144                 print "\tcase '" cchar(l_prefix_suffix[pc]) "':";
  145                 print "\t\tteken_state_switch(t, " l_prefix_name[pc] ");";
  146                 print "\t\treturn;";
  147         }
  148 
  149         print "\tdefault:";
  150         if (l_prefix_name[p] == "teken_state_init") {
  151                 print "\t\tteken_subr_regular_character(t, c);";
  152         } else {
  153                 print "\t\tteken_printf(\"Unsupported sequence in " l_prefix_name[p] ": %u\\n\", (unsigned int)c);";
  154         }
  155         print "\t\tbreak;";
  156 
  157         print "\t}";
  158 
  159         if (l_prefix_name[p] != "teken_state_init") {
  160                 print "";
  161                 print "\tt->t_last = 0;";
  162                 print "\tteken_state_switch(t, teken_state_init);";
  163         }
  164         print "}";
  165 }
  166 
  167 }

Cache object: d57b0f0d396161036da7c5e327ef3b5b


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