ncurses/tinfo/init_keytry.c

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  28
  29 #include <curses.priv.h>
  30 #include <tic.h>                /* struct tinfo_fkeys */
  31
  32 MODULE_ID("$Id: init_keytry.c,v 1.17 2010/04/24 22:29:56 tom Exp $")
  33
  34 /*
  35 **      _nc_init_keytry()
  36 **
  37 **      Construct the try for the current terminal's keypad keys.
  38 **
  39 */
  40
  41 /*
  42  * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
  43  * than cur_term.
  44  */
  45 #undef CUR
  46 #define CUR SP_TERMTYPE
  47
  48 #if     BROKEN_LINKER
  49 #undef  _nc_tinfo_fkeys
  50 #endif
  51
  52 /* LINT_PREPRO
  53 #if 0*/
  54 #include <init_keytry.h>
  55 /* LINT_PREPRO
  56 #endif*/
  57
  58 #if     BROKEN_LINKER
  59 const struct tinfo_fkeys *
  60 _nc_tinfo_fkeysf(void)
  61 {
  62     return _nc_tinfo_fkeys;
  63 }
  64 #endif
  65
  66 NCURSES_EXPORT(void)
  67 _nc_init_keytry(SCREEN *sp)
  68 {
  69     unsigned n;
  70
  71     /* The sp->_keytry value is initialized in newterm(), where the sp
  72      * structure is created, because we can not tell where keypad() or
  73      * mouse_activate() (which will call keyok()) are first called.
  74      */
  75
  76     if (sp != 0) {
  77         for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
  78             if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
  79                 (void) _nc_add_to_try(&(sp->_keytry),
  80                                       CUR Strings[_nc_tinfo_fkeys[n].offset],
  81                                       _nc_tinfo_fkeys[n].code);
  82             }
  83         }
  84 #if NCURSES_XNAMES
  85         /*
  86          * Add any of the extended strings to the tries if their name begins
  87          * with 'k', i.e., they follow the convention of other terminfo key
  88          * names.
  89          */
  90         {
  91             TERMTYPE *tp = &(sp->_term->type);
  92             for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
  93                 const char *name = ExtStrname(tp, (int) n, strnames);
  94                 char *value = tp->Strings[n];
  95                 if (name != 0
  96                     && *name == 'k'
  97                     && value != 0
  98                     && NCURSES_SP_NAME(key_defined) (NCURSES_SP_ARGx
  99                                                      value) == 0) {
 100                     (void) _nc_add_to_try(&(sp->_keytry),
 101                                           value,
 102                                           n - STRCOUNT + KEY_MAX);
 103                 }
 104             }
 105         }
 106 #endif
 107 #ifdef TRACE
 108         _nc_trace_tries(sp->_keytry);
 109 #endif
 110     }
 111 }