1 /* Merge parameters into a termcap entry string.
2 Copyright (C) 1985, 1987, 1992, 1993, 1994 Free Software Foundation, Inc.
4 This file is part of SXEmacs
6 SXEmacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 SXEmacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Synched up with: Not synched with FSF. */
22 /* config.h may rename various library functions such as malloc. */
29 #define realloc xrealloc
30 #define malloc xmalloc
32 extern void *xmalloc(size_t size);
33 extern void *xrealloc(void *, size_t size);
41 extern char *malloc();
42 extern char *realloc();
47 /* Assuming STRING is the value of a termcap string entry
48 containing `%' constructs to expand parameters,
49 merge in parameter values and store result in block OUTSTRING points to.
50 LEN is the length of OUTSTRING. If more space is needed,
51 a block is allocated with `malloc'.
53 The value returned is the address of the resulting string.
54 This may be OUTSTRING or may be the address of a block got with `malloc'.
55 In the latter case, the caller must free the block.
57 The fourth and following args to tparam serve as the parameter values. */
59 static char *tparam1(const char *string, char *outstring, int len,
60 const char *up, const char *left, int *argp);
62 /* XEmacs: renamed this function because just tparam() conflicts with
64 char *emacs_tparam(const char *string, char *outstring, int len, int arg1,
65 int arg2, int arg3, int arg4, int arg5, int arg6, int arg7,
78 return tparam1(string, outstring, len, 0, 0, arg);
84 static char tgoto_buf[50];
86 char *tgoto(const char *cm, int hpos, int vpos);
87 char *tgoto(const char *cm, int hpos, int vpos)
94 return tparam1(cm, tgoto_buf, 50, UP, BC, args);
97 static char *tparam1(const char *string, char *outstring, int len,
98 const char *up, const char *left, int *argp)
101 const char *p = string;
102 char *op = outstring;
107 int *old_argp = argp;
111 outend = outstring + len;
114 /* If the buffer might be too short, make it bigger. */
115 if (op + 5 >= outend) {
119 new = (char *)malloc(outlen);
121 memcpy(new, outstring, op - outstring);
125 new = (char *)realloc(outstring, outlen);
127 op += new - outstring;
128 outend += new - outstring;
138 case 'd': /* %d means output in decimal. */
143 case '3': /* %3 means output in decimal, 3 digits. */
145 *op++ = tem / 1000 + '0';
148 *op++ = tem / 100 + '0';
149 case '2': /* %2 means output in decimal, 2 digits. */
152 *op++ = tem / 10 + '0';
154 *op++ = tem % 10 + '0';
159 /* For c-100: print quotient of value by 96, if nonzero,
165 case '+': /* %+x means add character code of char x. */
167 case '.': /* %. means output as character. */
169 /* If want to forbid output of 0 and \n and \t,
170 and this is one of them, increment it. */
171 while (tem == 0 || tem == '\n'
174 if (argp == old_argp)
183 case 'f': /* %f means discard next arg. */
187 case 'b': /* %b means back up one arg (and re-use it). */
191 case 'r': /* %r means interchange following two args. */
197 case '>': /* %>xy means if arg is > char code of x, */
198 if (argp[0] > *p++) /* then add char code of y to the arg, */
199 argp[0] += *p; /* and in any case don't output. */
200 p++; /* Leave the arg to be output later. */
203 case 'a': /* %a means arithmetic. */
204 /* Next character says what operation.
205 Add or subtract either a constant or some other arg. */
206 /* First following character is + to add or - to subtract
208 /* Next following char is 'p' and an arg spec
209 (0100 plus position of that arg relative to this one)
210 or 'c' and a constant stored in a character. */
213 tem = argp[tem - 0100];
216 else if (p[0] == '+')
218 else if (p[0] == '*')
220 else if (p[0] == '/')
228 case 'i': /* %i means add one to arg, */
229 argp[0]++; /* and leave it to be output later. */
230 argp[1]++; /* Increment the following arg, too! */
233 case '%': /* %% means output %; no arg. */
236 case 'n': /* %n means xor each of next two args with 140. */
241 case 'm': /* %m means xor each of next two args with 177. */
246 case 'B': /* %B means express arg as BCD char code. */
247 argp[0] += 6 * (tem / 10);
250 case 'D': /* %D means weird Delta Data transformation. */
251 argp[0] -= 2 * (tem % 16);
255 /* Ordinary character in the argument string. */
275 args[0] = atoi(argv[2]);
276 args[1] = atoi(argv[3]);
277 args[2] = atoi(argv[4]);
278 tparam1(argv[1], buf, "LEFT", "UP", args);