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149 lines
2.4 KiB
C
149 lines
2.4 KiB
C
/*
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* tgoto.c
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*
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* By Ross Ridge
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* Public Domain
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* 92/02/01 07:30:33
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*
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* A few kludged attempts to worry outputing ^D's and NL's...
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* My advice is to get a decent terminal.
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*
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*/
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#include "defs.h"
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#include <term.h>
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#ifdef USE_SCCS_IDS
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static const char SCCSid[] = "@(#) mytinfo tgoto.c 3.2 92/02/01 public domain, By Ross Ridge";
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#endif
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#ifdef USE_LITOUT_KLUDGE
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/*
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* This kludge works by telling tputs to switch the tty driver to
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* "literal output" when printing the string so we don't have worry
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* about newlines and EOTs. The problem is that ioctls used to
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* switch modes might flush buffers and cause other problems.
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*/
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char *
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tgoto(str, x, y)
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char *str;
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int x,y; {
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register char *sp;
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static char buf[MAX_LINE] = {'\\', '@'};
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sp = str = tparm(str, y, x);
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while (*sp != '\0') {
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if (*sp == '\004' || *sp == '\n') {
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strncpy(buf + 2, str, MAX_LINE - 2);
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buf[MAX_LINE - 2] = '\0';
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return buf;
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}
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sp++;
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}
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return sp;
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}
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#else
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#ifdef USE_UPBC_KLUDGE
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#ifdef USE_EXTERN_UPBC
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extern char *BC, *UP;
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#else
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#define BC cursor_left
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#define UP cursor_right
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#endif
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#ifdef __GNUC__
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__inline__
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#endif
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static int
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checkit(s)
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register char *s; {
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while(*s != '\0') {
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if (*s == '\004' || *s == '\n')
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return 1;
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s++;
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}
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return 0;
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}
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/*
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* Major kludge, basically we just change the parmeters until we get
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* a string that doesn't contain a newline or EOT.
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*/
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char *
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tgoto(str, x, y)
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char *str;
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int x,y; {
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static char buf[MAX_LINE];
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register char *orig, *s;
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int l;
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orig = tparm(str, y, x);
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if (!checkit(orig))
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return orig;
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s = tparm(str, y + 1, x);
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if (!checkit(s)) {
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if (BC == NULL)
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return s;
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l = strlen(s);
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strncpy(buf, s, MAX_LINE - 1);
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if (l < MAX_LINE - 1)
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strncpy(buf + l, BC, MAX_LINE - 1 - l);
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return s;
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}
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s = tparm(str, y, x + 1);
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if (!checkit(s)) {
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if (UP == NULL)
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return s;
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l = strlen(s);
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strncpy(buf, s, MAX_LINE - 1);
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if (l < MAX_LINE - 1)
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strncpy(buf + l, UP, MAX_LINE - 1 - l);
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return s;
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}
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s = tparm(str, y + 1, x + 1);
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if (!checkit(s)) {
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if (UP == NULL || BC == NULL)
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return s;
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l = strlen(s);
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strncpy(buf, s, MAX_LINE - 1);
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if (l < MAX_LINE - 1)
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strncpy(buf + l, UP, MAX_LINE - 1 - l);
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l += strlen(UP);
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if (l < MAX_LINE - 1)
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strncpy(buf + l, BC, MAX_LINE - 1 - l);
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return s;
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}
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return orig;
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}
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#else
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/* the simple tgoto, don't worry about any of this newline/EOT crap */
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char *
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tgoto(str, x, y)
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char *str;
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int x,y; {
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return tparm(str, y, x);
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}
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#endif
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#endif
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