ncurses/base/MKkeyname.awk

   1 # $Id: MKkeyname.awk,v 1.31 2007/01/06 21:19:44 Miroslav.Lichvar Exp $
   2 ##############################################################################
   3 # Copyright (c) 1999-2006,2007 Free Software Foundation, Inc.                #
   4 #                                                                            #
   5 # Permission is hereby granted, free of charge, to any person obtaining a    #
   6 # copy of this software and associated documentation files (the "Software"), #
   7 # to deal in the Software without restriction, including without limitation  #
   8 # the rights to use, copy, modify, merge, publish, distribute, distribute    #
   9 # with modifications, sublicense, and/or sell copies of the Software, and to #
  10 # permit persons to whom the Software is furnished to do so, subject to the  #
  11 # following conditions:                                                      #
  12 #                                                                            #
  13 # The above copyright notice and this permission notice shall be included in #
  14 # all copies or substantial portions of the Software.                        #
  15 #                                                                            #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
  17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
  18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
  19 # THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
  20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
  21 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
  22 # DEALINGS IN THE SOFTWARE.                                                  #
  23 #                                                                            #
  24 # Except as contained in this notice, the name(s) of the above copyright     #
  25 # holders shall not be used in advertising or otherwise to promote the sale, #
  26 # use or other dealings in this Software without prior written               #
  27 # authorization.                                                             #
  28 ##############################################################################
  29 BEGIN {
  30         print "/* generated by MKkeyname.awk */"
  31         print ""
  32         print "#include <curses.priv.h>"
  33         print "#include <tic.h>"
  34         print "#include <term_entry.h>"
  35         print ""
  36         print "const struct kn _nc_key_names[] = {"
  37 }
  38
  39 /^[^#]/ {
  40         printf "\t{ %d, %s },\n", offset, $1
  41         offset += length($1) + 1
  42         names = names"\n\t\""$1"\\0\""
  43         }
  44
  45 END {
  46         printf "\t{ -1, 0 }};\n"
  47         print ""
  48         print "static const char key_names[] = "names";"
  49         print ""
  50         print "#define SIZEOF_TABLE 256"
  51         print "static char **keyname_table;"
  52         print ""
  53         print "NCURSES_EXPORT(NCURSES_CONST char *) keyname (int c)"
  54         print "{"
  55         print " int i;"
  56         print " char name[20];"
  57         print " char *p;"
  58         print " NCURSES_CONST char *result = 0;"
  59         print ""
  60         print " if (c == -1) {"
  61         print "         result = \"-1\";"
  62         print " } else {"
  63         print "         for (i = 0; _nc_key_names[i].offset != -1; i++) {"
  64         print "                 if (_nc_key_names[i].code == c) {"
  65         print "                         result = (NCURSES_CONST char *)key_names + _nc_key_names[i].offset;"
  66         print "                         break;"
  67         print "                 }"
  68         print "         }"
  69         print ""
  70         print "         if (result == 0 && (c >= 0 && c < SIZEOF_TABLE)) {"
  71         print "                 if (keyname_table == 0)"
  72         print "                         keyname_table = typeCalloc(char *, SIZEOF_TABLE);"
  73         print "                 if (keyname_table != 0) {"
  74         print "                         if (keyname_table[c] == 0) {"
  75         print "                                 int cc = c;"
  76         print "                                 p = name;"
  77         print "                                 if (cc >= 128) {"
  78         print "                                         strcpy(p, \"M-\");"
  79         print "                                         p += 2;"
  80         print "                                         cc -= 128;"
  81         print "                                 }"
  82         print "                                 if (cc < 32)"
  83         print "                                         sprintf(p, \"^%c\", cc + '@');"
  84         print "                                 else if (cc == 127)"
  85         print "                                         strcpy(p, \"^?\");"
  86         print "                                 else"
  87         print "                                         sprintf(p, \"%c\", cc);"
  88         print "                                 keyname_table[c] = strdup(name);"
  89         print "                         }"
  90         print "                         result = keyname_table[c];"
  91         print "                 }"
  92         print "#if NCURSES_EXT_FUNCS && NCURSES_XNAMES"
  93         print "         } else if (result == 0 && cur_term != 0) {"
  94         print "                 int j, k;"
  95         print "                 char * bound;"
  96         print "                 TERMTYPE *tp = &(cur_term->type);"
  97         print "                 int save_trace = _nc_tracing;"
  98         print ""
  99         print "                 _nc_tracing = 0;        /* prevent recursion via keybound() */"
 100         print "                 for (j = 0; (bound = keybound(c, j)) != 0; ++j) {"
 101         print "                         for(k = STRCOUNT; k < NUM_STRINGS(tp);  k++) {"
 102         print "                                 if (tp->Strings[k] != 0 && !strcmp(bound, tp->Strings[k])) {"
 103         print "                                         result = ExtStrname(tp, k, strnames);"
 104         print "                                         break;"
 105         print "                                 }"
 106         print "                         }"
 107         print "                         free(bound);"
 108         print "                         if (result != 0)"
 109         print "                                 break;"
 110         print "                 }"
 111         print "                 _nc_tracing = save_trace;"
 112         print "#endif"
 113         print "         }"
 114         print " }"
 115         print " return result;"
 116         print "}"
 117         print ""
 118         print "#if USE_WIDEC_SUPPORT"
 119         print "NCURSES_EXPORT(NCURSES_CONST char *) key_name (wchar_t c)"
 120         print "{"
 121         print " NCURSES_CONST char *result = keyname((int)c);"
 122         print " if (!strncmp(result, \"M-\", 2)) result = 0;"
 123         print " return result;"
 124         print "}"
 125         print "#endif"
 126         print ""
 127         print "#if NO_LEAKS"
 128         print "void _nc_keyname_leaks(void)"
 129         print "{"
 130         print " int j;"
 131         print " if (keyname_table != 0) {"
 132         print "         for (j = 0; j < SIZEOF_TABLE; ++j) {"
 133         print "                 FreeIfNeeded(keyname_table[j]);"
 134         print "         }"
 135         print "         FreeAndNull(keyname_table);"
 136         print " }"
 137         print "}"
 138         print "#endif /* NO_LEAKS */"
 139 }