146a16269Sedward /*
2*82b6afa4Sbostic * Copyright (c) 1983, 1993
3*82b6afa4Sbostic * The Regents of the University of California. All rights reserved.
4bac0d407Sbostic *
58e751acfSbostic * This code is derived from software contributed to Berkeley by
68e751acfSbostic * Edward Wang at The University of California, Berkeley.
78e751acfSbostic *
8122a1d9eSbostic * %sccs.include.redist.c%
946a16269Sedward */
1046a16269Sedward
11bac0d407Sbostic #ifndef lint
12*82b6afa4Sbostic static char sccsid[] = "@(#)wwgets.c 8.1 (Berkeley) 06/06/93";
13bac0d407Sbostic #endif /* not lint */
14bac0d407Sbostic
1508baec4dSedward #include "ww.h"
16315bd682Sedward #include "char.h"
171e8f3baeSedward
wwgets(buf,n,w)1808baec4dSedward wwgets(buf, n, w)
199950620dSedward char *buf;
209950620dSedward int n;
219950620dSedward register struct ww *w;
229950620dSedward {
239950620dSedward register char *p = buf;
249950620dSedward register char c;
25b5e655efSedward char uc = w->ww_unctrl;
264d3028ecSbostic static void rub();
279950620dSedward
28b5e655efSedward w->ww_unctrl = 0;
299950620dSedward for (;;) {
309479b675Sedward wwcurtowin(w);
3108baec4dSedward while ((c = wwgetc()) < 0)
3208baec4dSedward wwiomux();
33961336aeSedward #ifdef OLD_TTY
347cb5121fSedward if (c == wwoldtty.ww_sgttyb.sg_erase)
357cb5121fSedward #else
367cb5121fSedward if (c == wwoldtty.ww_termios.c_cc[VERASE])
377cb5121fSedward #endif
387cb5121fSedward {
39d8262c63Sedward if (p > buf)
40d8262c63Sedward rub(*--p, w);
417cb5121fSedward } else
42961336aeSedward #ifdef OLD_TTY
437cb5121fSedward if (c == wwoldtty.ww_sgttyb.sg_kill)
447cb5121fSedward #else
457cb5121fSedward if (c == wwoldtty.ww_termios.c_cc[VKILL])
467cb5121fSedward #endif
477cb5121fSedward {
48d8262c63Sedward while (p > buf)
49d8262c63Sedward rub(*--p, w);
507cb5121fSedward } else
51961336aeSedward #ifdef OLD_TTY
527cb5121fSedward if (c == wwoldtty.ww_ltchars.t_werasc)
537cb5121fSedward #else
547cb5121fSedward if (c == wwoldtty.ww_termios.c_cc[VWERASE])
557cb5121fSedward #endif
567cb5121fSedward {
57d8262c63Sedward while (--p >= buf && (*p == ' ' || *p == '\t'))
58d8262c63Sedward rub(*p, w);
59d8262c63Sedward while (p >= buf && *p != ' ' && *p != '\t')
60d8262c63Sedward rub(*p--, w);
61d8262c63Sedward p++;
62d8262c63Sedward } else if (c == '\r' || c == '\n') {
639950620dSedward break;
64d8262c63Sedward } else {
659950620dSedward if (p >= buf + n - 1)
660114dd46Sbostic wwputc(ctrl('g'), w);
67d8262c63Sedward else
683988aa30Sedward wwputs(unctrl(*p++ = c), w);
699950620dSedward }
709950620dSedward }
71d8262c63Sedward *p = 0;
72b5e655efSedward w->ww_unctrl = uc;
739950620dSedward }
74d8262c63Sedward
754d3028ecSbostic static void
rub(c,w)76d8262c63Sedward rub(c, w)
77d8262c63Sedward struct ww *w;
78d8262c63Sedward {
79d8262c63Sedward register i;
80d8262c63Sedward
81d8262c63Sedward for (i = strlen(unctrl(c)); --i >= 0;)
82767184a7Sedward (void) wwwrite(w, "\b \b", 3);
839950620dSedward }
84