1 /* Merge parameters into a termcap entry string.
2 Copyright (C) 1985, 87, 93, 95 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; see the file COPYING. If not, write to the
16 Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
18 /* Emacs config.h may rename various library functions such as malloc. */
25 extern char *getenv ();
26 extern char *malloc ();
27 extern char *realloc ();
30 #if defined (HAVE_STRING_H)
34 #if !defined (HAVE_BCOPY) && (defined (HAVE_STRING_H) || defined (STDC_HEADERS))
35 # define bcopy(s, d, n) memcpy ((d), (s), (n))
38 #else /* not HAVE_CONFIG_H */
40 #if defined(HAVE_STRING_H) || defined(STDC_HEADERS)
41 #define bcopy(s, d, n) memcpy ((d), (s), (n))
52 #endif /* not HAVE_CONFIG_H */
57 #define NULL (char *) 0
64 write (2, "virtual memory exhausted\n", 25);
72 register char *tem = malloc (size);
84 register char *tem = realloc (ptr, size);
90 #endif /* not emacs */
92 /* Assuming STRING is the value of a termcap string entry
93 containing `%' constructs to expand parameters,
94 merge in parameter values and store result in block OUTSTRING points to.
95 LEN is the length of OUTSTRING. If more space is needed,
96 a block is allocated with `malloc'.
98 The value returned is the address of the resulting string.
99 This may be OUTSTRING or may be the address of a block got with `malloc'.
100 In the latter case, the caller must free the block.
102 The fourth and following args to tparam serve as the parameter values. */
104 static char *tparam1 ();
108 tparam (string, outstring, len, arg0, arg1, arg2, arg3)
112 int arg0, arg1, arg2, arg3;
120 return tparam1 (string, outstring, len, NULL, NULL, arg);
123 __private_extern__ char *BC;
124 __private_extern__ char *UP;
126 static char tgoto_buf[50];
130 tgoto (cm, hpos, vpos)
139 return tparam1 (cm, tgoto_buf, 50, UP, BC, args);
143 tparam1 (string, outstring, len, up, left, argp)
151 register char *p = string;
152 register char *op = outstring;
157 int *old_argp = argp;
161 outend = outstring + len;
165 /* If the buffer might be too short, make it bigger. */
166 if (op + 5 >= outend)
172 new = (char *) xmalloc (outlen);
174 bcopy (outstring, new, op - outstring);
180 new = (char *) xrealloc (outstring, outlen);
182 op += new - outstring;
183 outend += new - outstring;
195 case 'd': /* %d means output in decimal. */
200 case '3': /* %3 means output in decimal, 3 digits. */
203 *op++ = tem / 1000 + '0';
206 *op++ = tem / 100 + '0';
207 case '2': /* %2 means output in decimal, 2 digits. */
210 *op++ = tem / 10 + '0';
212 *op++ = tem % 10 + '0';
217 /* For c-100: print quotient of value by 96, if nonzero,
224 case '+': /* %+x means add character code of char x. */
226 case '.': /* %. means output as character. */
229 /* If want to forbid output of 0 and \n and \t,
230 and this is one of them, increment it. */
231 while (tem == 0 || tem == '\n' || tem == '\t')
234 if (argp == old_argp)
235 doup++, outend -= strlen (up);
237 doleft++, outend -= strlen (left);
240 *op++ = tem ? tem : 0200;
241 case 'f': /* %f means discard next arg. */
245 case 'b': /* %b means back up one arg (and re-use it). */
249 case 'r': /* %r means interchange following two args. */
255 case '>': /* %>xy means if arg is > char code of x, */
256 if (argp[0] > *p++) /* then add char code of y to the arg, */
257 argp[0] += *p; /* and in any case don't output. */
258 p++; /* Leave the arg to be output later. */
261 case 'a': /* %a means arithmetic. */
262 /* Next character says what operation.
263 Add or subtract either a constant or some other arg. */
264 /* First following character is + to add or - to subtract
266 /* Next following char is 'p' and an arg spec
267 (0100 plus position of that arg relative to this one)
268 or 'c' and a constant stored in a character. */
271 tem = argp[tem - 0100];
274 else if (p[0] == '+')
276 else if (p[0] == '*')
278 else if (p[0] == '/')
286 case 'i': /* %i means add one to arg, */
287 argp[0] ++; /* and leave it to be output later. */
288 argp[1] ++; /* Increment the following arg, too! */
291 case '%': /* %% means output %; no arg. */
294 case 'n': /* %n means xor each of next two args with 140. */
299 case 'm': /* %m means xor each of next two args with 177. */
304 case 'B': /* %B means express arg as BCD char code. */
305 argp[0] += 6 * (tem / 10);
308 case 'D': /* %D means weird Delta Data transformation. */
309 argp[0] -= 2 * (tem % 16);
314 /* Ordinary character in the argument string. */
334 args[0] = atoi (argv[2]);
335 args[1] = atoi (argv[3]);
336 args[2] = atoi (argv[4]);
337 tparam1 (argv[1], buf, "LEFT", "UP", args);
338 printf ("%s\n", buf);