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* 10/5/88 |
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*/ |
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|
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< |
#include <ctype.h> |
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> |
#define iscntrl(c) ((c) < ' ') |
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> |
#define isblank(c) ((c) == ' ') |
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> |
#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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|
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|
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< |
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)(); |
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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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|
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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 (iserase(c)) { /* 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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> |
} else if (iswerase(c)) { /* word erase */ |
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> |
while (i > 0 && isblank(buf[i-1])) { |
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> |
(*s_put)(erases); |
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> |
--i; |
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> |
} |
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> |
while (i > 0 && !isblank(buf[i-1])) { |
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> |
(*s_put)(erases); |
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> |
--i; |
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> |
} |
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> |
} else if (iskill(c)) { /* 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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buf[i] = '\0'; |
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(*s_put)("\n"); |
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+ |
} |
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+ |
|
65 |
+ |
|
66 |
+ |
#include "driver.h" |
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+ |
|
68 |
+ |
static char mybuf[512]; |
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+ |
|
70 |
+ |
|
71 |
+ |
char * |
72 |
+ |
getcombuf(d) /* return buffer for my command */ |
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+ |
struct driver *d; |
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+ |
{ |
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+ |
d->inpready++; |
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+ |
return(mybuf+strlen(mybuf)); |
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+ |
} |
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+ |
|
79 |
+ |
|
80 |
+ |
fromcombuf(b, d) /* get command from my buffer */ |
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+ |
char *b; |
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+ |
struct driver *d; |
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+ |
{ |
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+ |
register char *cp; |
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+ |
/* get next command */ |
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+ |
for (cp = mybuf; *cp != '\n'; cp++) |
87 |
+ |
if (!*cp) |
88 |
+ |
return(0); |
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+ |
*cp++ = '\0'; |
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+ |
#ifdef DEBUG |
91 |
+ |
(*d->comout)(mybuf); /* echo my command */ |
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+ |
(*d->comout)("\n"); |
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+ |
#endif |
94 |
+ |
/* send it as reply */ |
95 |
+ |
strcpy(b, mybuf); |
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+ |
d->inpready--; |
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+ |
/* get next command */ |
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+ |
strcpy(mybuf, cp); |
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+ |
return(1); |
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} |