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* 10/5/88 |
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*/ |
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|
| 13 |
< |
#include <ctype.h> |
| 13 |
> |
#define iscntrl(c) ((c) < ' ') |
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> |
#define isblank(c) ((c) == ' ') |
| 15 |
> |
#define iserase(c) ((c) == '\b' || (c) == 127) |
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> |
#define iswerase(c) ((c) == 'W'-'@') |
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> |
#define iskill(c) ((c) == 'U'-'@' || (c) == 'X'-'@') |
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|
| 19 |
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|
| 20 |
< |
editline(buf, c_get, s_put, c_erase, c_kill) /* edit input line */ |
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> |
editline(buf, c_get, s_put) /* edit input line */ |
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char *buf; |
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int (*c_get)(), (*s_put)(); |
| 19 |
– |
int c_erase, c_kill; |
| 23 |
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{ |
| 24 |
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static char erases[] = "\b \b"; |
| 25 |
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static char obuf[4]; |
| 28 |
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|
| 29 |
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i = 0; |
| 30 |
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while ((c = (*c_get)()&0177) != '\n' && c != '\r') |
| 31 |
< |
if (c == c_erase) { /* single char erase */ |
| 31 |
> |
if (iserase(c)) { /* single char erase */ |
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if (i > 0) { |
| 33 |
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(*s_put)(erases); |
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--i; |
| 35 |
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} |
| 36 |
< |
} else if (c == c_kill) { /* kill line */ |
| 36 |
> |
} else if (iswerase(c)) { /* word erase */ |
| 37 |
> |
while (i > 0 && isblank(buf[i-1])) { |
| 38 |
> |
(*s_put)(erases); |
| 39 |
> |
--i; |
| 40 |
> |
} |
| 41 |
> |
while (i > 0 && !isblank(buf[i-1])) { |
| 42 |
> |
(*s_put)(erases); |
| 43 |
> |
--i; |
| 44 |
> |
} |
| 45 |
> |
} else if (iskill(c)) { /* kill line */ |
| 46 |
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while (i > 0) { |
| 47 |
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(*s_put)(erases); |
| 48 |
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--i; |
