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/* Copyright (c) 1987 Regents of the University of California */
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#ifndef lint
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static char SCCSid[] = "$SunId$ LBL";
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#endif
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/*
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* editline.c - routine for editing raw input for rview.
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*
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* 10/5/88
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*/
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#include <ctype.h>
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editline(buf, c_get, s_put, c_erase, c_kill) /* edit input line */
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char *buf;
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int (*c_get)(), (*s_put)();
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int c_erase, c_kill;
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{
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static char erases[] = "\b \b";
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static char obuf[4];
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register int i;
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register int c;
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i = 0;
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while ((c = (*c_get)()&0177) != '\n' && c != '\r')
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if (c == c_erase) { /* single char erase */
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if (i > 0) {
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(*s_put)(erases);
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--i;
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}
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} else if (c == c_kill) { /* kill line */
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while (i > 0) {
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(*s_put)(erases);
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--i;
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}
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} else if (iscntrl(c)) { /* control char */
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i = 0;
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buf[i++] = c;
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obuf[0] = '^'; obuf[1] = c|0100; obuf[2] = '\0';
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(*s_put)(obuf);
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break;
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} else { /* regular char */
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buf[i++] = c;
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obuf[0] = c; obuf[1] = '\0';
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(*s_put)(obuf);
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}
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buf[i] = '\0';
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(*s_put)("\n");
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}
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