release/src/router/libncurses/ncurses/tinfo/MKcaptab.sh

   1 #!/bin/sh
   2 ##############################################################################
   3 # Copyright (c) 2007-2009,2010 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.                                                  #
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  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 # $Id: MKcaptab.sh,v 1.13 2010/12/25 23:43:58 tom Exp $
  30 AWK=${1-awk}
  31 OPT1=${2-0}
  32 OPT2=${3-tinfo/MKcaptab.awk}
  33 DATA=${4-../include/Caps}
  34
  35 cat <<EOF
  36 /*
  37  * generated by $0
  38  */
  39
  40 EOF
  41
  42 cat <<'EOF'
  43 /*
  44  *      comp_captab.c -- The names of the capabilities indexed via a hash
  45  *                       table for the compiler.
  46  *
  47  */
  48
  49 #include <curses.priv.h>
  50 #include <tic.h>
  51 #include <hashsize.h>
  52
  53 EOF
  54
  55 ./make_hash 1 info $OPT1 <$DATA
  56 ./make_hash 3 cap  $OPT1 <$DATA
  57
  58 $AWK -f $OPT2 bigstrings=$OPT1 tablename=capalias <$DATA
  59
  60 $AWK -f $OPT2 bigstrings=$OPT1 tablename=infoalias <$DATA
  61
  62 cat <<EOF
  63
  64 #if $OPT1
  65 static void
  66 next_string(const char *strings, unsigned *offset)
  67 {
  68     *offset += (unsigned) strlen(strings + *offset) + 1;
  69 }
  70
  71 static const struct name_table_entry *
  72 _nc_build_names(struct name_table_entry **actual,
  73                 const name_table_data *source,
  74                 const char *strings)
  75 {
  76     if (*actual == 0) {
  77         *actual = typeCalloc(struct name_table_entry, CAPTABSIZE);
  78         if (*actual != 0) {
  79             unsigned n;
  80             unsigned len = 0;
  81             for (n = 0; n < CAPTABSIZE; ++n) {
  82                 (*actual)[n].nte_name = strings + len;
  83                 (*actual)[n].nte_type = source[n].nte_type;
  84                 (*actual)[n].nte_index = source[n].nte_index;
  85                 (*actual)[n].nte_link = source[n].nte_link;
  86                 next_string(strings, &len);
  87             }
  88         }
  89     }
  90     return *actual;
  91 }
  92
  93 #define add_alias(field) \\
  94         if (source[n].field >= 0) { \\
  95                 (*actual)[n].field = strings + source[n].field; \\
  96         }
  97
  98 static const struct alias *
  99 _nc_build_alias(struct alias **actual,
 100                 const alias_table_data *source,
 101                 const char *strings,
 102                 unsigned tablesize)
 103 {
 104     if (*actual == 0) {
 105         *actual = typeCalloc(struct alias, tablesize + 1);
 106         if (*actual != 0) {
 107             unsigned n;
 108             for (n = 0; n < tablesize; ++n) {
 109                 add_alias(from);
 110                 add_alias(to);
 111                 add_alias(source);
 112             }
 113         }
 114     }
 115     return *actual;
 116 }
 117
 118 #define build_names(root) _nc_build_names(&_nc_##root##_table, \\
 119                                           root##_names_data, \\
 120                                           root##_names_text)
 121 #define build_alias(root) _nc_build_alias(&_nc_##root##alias_table, \\
 122                                           root##alias_data, \\
 123                                           root##alias_text, \\
 124                                           SIZEOF(root##alias_data))
 125 #else
 126 #define build_names(root) _nc_ ## root ## _table
 127 #define build_alias(root) _nc_ ## root ## alias_table
 128 #endif
 129
 130 NCURSES_EXPORT(const struct name_table_entry *) _nc_get_table (bool termcap)
 131 {
 132     return termcap ? build_names(cap) : build_names(info) ;
 133 }
 134
 135 /* entrypoint used by tack (do not alter) */
 136 NCURSES_EXPORT(const HashValue *) _nc_get_hash_table (bool termcap)
 137 {
 138     return termcap ? _nc_cap_hash_table: _nc_info_hash_table ;
 139 }
 140
 141 NCURSES_EXPORT(const struct alias *) _nc_get_alias_table (bool termcap)
 142 {
 143     return termcap ? build_alias(cap) : build_alias(info) ;
 144 }
 145
 146 static HashValue
 147 info_hash(const char *string)
 148 {
 149     long sum = 0;
 150
 151     DEBUG(9, ("hashing %s", string));
 152     while (*string) {
 153         sum += (long) (*string + (*(string + 1) << 8));
 154         string++;
 155     }
 156
 157     DEBUG(9, ("sum is %ld", sum));
 158     return (HashValue) (sum % HASHTABSIZE);
 159 }
 160
 161 #define TCAP_LEN 2              /* only 1- or 2-character names are used */
 162
 163 static HashValue
 164 tcap_hash(const char *string)
 165 {
 166     char temp[TCAP_LEN + 1];
 167     int limit = 0;
 168
 169     while (*string) {
 170         temp[limit++] = *string++;
 171         if (limit >= TCAP_LEN)
 172             break;
 173     }
 174     temp[limit] = '\0';
 175     return info_hash(temp);
 176 }
 177
 178 static int
 179 compare_tcap_names(const char *a, const char *b)
 180 {
 181     return !strncmp(a, b, TCAP_LEN);
 182 }
 183
 184 static int
 185 compare_info_names(const char *a, const char *b)
 186 {
 187     return !strcmp(a, b);
 188 }
 189
 190 static const HashData hash_data[2] = {
 191     { HASHTABSIZE, _nc_info_hash_table, info_hash, compare_info_names },
 192     { HASHTABSIZE, _nc_cap_hash_table, tcap_hash, compare_tcap_names }
 193 };
 194
 195 NCURSES_EXPORT(const HashData *) _nc_get_hash_info (bool termcap)
 196 {
 197     return &hash_data[(termcap != FALSE)];
 198 }
 199
 200 #if NO_LEAKS
 201 NCURSES_EXPORT(void) _nc_comp_captab_leaks(void)
 202 {
 203 #if $OPT1
 204     FreeIfNeeded(_nc_cap_table);
 205     FreeIfNeeded(_nc_info_table);
 206     FreeIfNeeded(_nc_capalias_table);
 207     FreeIfNeeded(_nc_infoalias_table);
 208 #endif
 209 }
 210 #endif /* NO_LEAKS */
 211 EOF