4.3BSD - /usr/src/new/emacs/src/terminfo.c

   1: /* Interface from Emacs to terminfo.
   2:    Copyright (C) 1985 Richard M. Stallman.
   3: 
   4: This file is part of GNU Emacs.
   5: 
   6: GNU Emacs is distributed in the hope that it will be useful,
   7: but WITHOUT ANY WARRANTY.  No author or distributor
   8: accepts responsibility to anyone for the consequences of using it
   9: or for whether it serves any particular purpose or works at all,
  10: unless he says so in writing.  Refer to the GNU Emacs General Public
  11: License for full details.
  12: 
  13: Everyone is granted permission to copy, modify and redistribute
  14: GNU Emacs, but only under the conditions described in the
  15: GNU Emacs General Public License.   A copy of this license is
  16: supposed to have been given to you along with GNU Emacs so you
  17: can know your rights and responsibilities.  It should be in a
  18: file named COPYING.  Among other things, the copyright notice
  19: and this notice must be preserved on all copies.  */
  20: 
  21: /* This is to avoid need to conditionalize interface to termcap.  */
  22: 
  23: #include "config.h"
  24: 
  25: char UP, BC, PC;
  26: short ospeed;
  27: 
  28: #ifdef NO_ARG_ARRAY
  29: tparam (string, outstring,
  30:     arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
  31:      char *string;
  32:      char *outstring;
  33:      int arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9;
  34: {
  35:   char argp[10];
  36:   argp[0] = arg0; argp[1] = arg1; argp[2] = arg2;
  37:   argp[3] = arg3; argp[4] = arg4; argp[5] = arg5;
  38:   argp[6] = arg6; argp[7] = arg7; argp[8] = arg8;
  39:   argp[9] = arg9;
  40:   tparam1(string, outstring, &argp[0]);
  41: }
  42: #else /* no NO_ARG_ARRAY */
  43: tparam (string, outstring, arg)
  44:      char *string;
  45:      char *outstring;
  46:      int arg;
  47: {
  48:   tparam1 (string, outstring, &arg);
  49: }
  50: #endif /* no NO_ARG_ARRAY */
  51: 
  52: #define todigit(c) ((c) - '0')
  53: 
  54: /* Virtual TERMINFO machine */
  55: 
  56: #define TO_REG(c) (((int) c) - ((int) 'a'))
  57: #define REG(c) the_registers[TO_REG (c)]
  58: #define PUSH(x) *--sp = ((int) x);
  59: #define POP() *sp++
  60: 
  61: #define UN_OP(op)       \
  62: *sp = op (*sp);         \
  63: continue
  64: 
  65: #define BIN_OP(op)      \
  66: sp[1] = ((sp[0]) op (sp[1]));   \
  67: sp += 1;            \
  68: continue
  69: 
  70: #define SEND(c)         \
  71: *outstring++ = ((char) c);  \
  72: continue
  73: 
  74: #define SSEND(f)        \
  75: sprintf (outstring, f, POP ()); \
  76: while (*outstring++ != '\0') ;  \
  77: outstring -= 1;         \
  78: continue
  79: 
  80: tparam1 (string, outstring, argp)
  81:      register char *string;
  82:      register char *outstring;
  83:      int *argp;
  84: { long the_registers[TO_REG ('z')];
  85:   long the_stack[50];
  86:   register long *sp = &the_stack[50];
  87:   register char c;
  88:   while ((c = *string++) != '\0')
  89:     switch (c)
  90:     {
  91:       case '%':
  92:     switch (c = *string++)
  93:     { case '%': SEND ('%');
  94:       case 'd': SSEND ("%d");
  95:           case '2':
  96:             string += 1;
  97:             SSEND ("%2d");
  98:           case '3':
  99:             string += 1;
 100:             SSEND ("%3d");
 101:           case '0':
 102:             c = *string;
 103:             string += 2;
 104:             SSEND ((c == '2') ? "%02d" : "%03d");
 105:       case 'c': SEND (((char) POP ()));
 106:       case 's': SSEND ("%s");
 107:       case 'p':
 108:         PUSH (argp[(todigit (*string++))-1]);
 109:         continue;
 110:       case 'P':
 111:         REG (*string++) = POP ();
 112:         continue;
 113:       case 'g':
 114:         PUSH (REG (*string++));
 115:         continue;
 116:       case '\'':
 117:         PUSH (*string);
 118:         string += 2;
 119:         continue;
 120:       case '{':
 121:       { int temp;
 122:         sscanf (string, "%d", &temp);
 123:         PUSH (temp);
 124:         while (*string++ != '}') ;
 125:         continue;
 126:       }
 127:       case '+': BIN_OP (+);
 128:       case '-': BIN_OP (-);
 129:       case '*': BIN_OP (*);
 130:       case '/': BIN_OP (/);
 131:       case 'm': BIN_OP (%);
 132:       case '&': BIN_OP (&);
 133:       case '|': BIN_OP (|);
 134:       case '^': BIN_OP (^);
 135:       case '=': BIN_OP (=);
 136:       case '<': BIN_OP (<);
 137:       case '>': BIN_OP (<);
 138:       case '!': UN_OP (!);
 139:       case '~': UN_OP (~);
 140:       case 'i':
 141:         argp[0] += 1;
 142:         argp[1] += 1;
 143:         continue;
 144:       case '?':
 145:       case 't':
 146:       case 'e':
 147:       case ';':
 148:       default:
 149:         continue;
 150:     } /* switch for % */
 151:       default: SEND (c);
 152:     } /* outer switch  */
 153:   *outstring = '\0';
 154: } /* tparam1 */

Defined functions

Defined variables

Defined macros