| 1 |
– |
/* Copyright (c) 1987 Regents of the University of California */ |
| 2 |
– |
|
| 1 |
|
#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* editline.c - routine for editing raw input for rview. |
| 6 |
|
* |
| 7 |
< |
* 10/5/88 |
| 7 |
> |
* External symbols declared in driver.h |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
< |
#include <ctype.h> |
| 10 |
> |
#include "copyright.h" |
| 11 |
|
|
| 12 |
+ |
#include <stdio.h> |
| 13 |
+ |
#include <string.h> |
| 14 |
|
|
| 15 |
< |
editline(buf, c_get, s_put, c_erase, c_kill) /* edit input line */ |
| 16 |
< |
char *buf; |
| 17 |
< |
int (*c_get)(), (*s_put)(); |
| 18 |
< |
int c_erase, c_kill; |
| 15 |
> |
#include "color.h" |
| 16 |
> |
|
| 17 |
> |
#include "driver.h" |
| 18 |
> |
|
| 19 |
> |
#define iscntrl(c) ((c) < ' ') |
| 20 |
> |
#define isblank(c) ((c) == ' ') |
| 21 |
> |
#define iserase(c) ((c) == '\b' || (c) == 127) |
| 22 |
> |
#define iswerase(c) ((c) == 'W'-'@') |
| 23 |
> |
#define iskill(c) ((c) == 'U'-'@' || (c) == 'X'-'@') |
| 24 |
> |
|
| 25 |
> |
|
| 26 |
> |
extern void |
| 27 |
> |
editline( /* edit input line */ |
| 28 |
> |
char *buf, |
| 29 |
> |
dr_getchf_t *c_get, |
| 30 |
> |
dr_comoutf_t *s_put |
| 31 |
> |
) |
| 32 |
|
{ |
| 33 |
|
static char erases[] = "\b \b"; |
| 34 |
|
static char obuf[4]; |
| 37 |
|
|
| 38 |
|
i = 0; |
| 39 |
|
while ((c = (*c_get)()&0177) != '\n' && c != '\r') |
| 40 |
< |
if (c == c_erase) { /* single char erase */ |
| 40 |
> |
if (iserase(c)) { /* single char erase */ |
| 41 |
|
if (i > 0) { |
| 42 |
|
(*s_put)(erases); |
| 43 |
|
--i; |
| 44 |
|
} |
| 45 |
< |
} else if (c == c_kill) { /* kill line */ |
| 45 |
> |
} else if (iswerase(c)) { /* word erase */ |
| 46 |
> |
while (i > 0 && isblank(buf[i-1])) { |
| 47 |
> |
(*s_put)(erases); |
| 48 |
> |
--i; |
| 49 |
> |
} |
| 50 |
> |
while (i > 0 && !isblank(buf[i-1])) { |
| 51 |
> |
(*s_put)(erases); |
| 52 |
> |
--i; |
| 53 |
> |
} |
| 54 |
> |
} else if (iskill(c)) { /* kill line */ |
| 55 |
|
while (i > 0) { |
| 56 |
|
(*s_put)(erases); |
| 57 |
|
--i; |
| 69 |
|
} |
| 70 |
|
buf[i] = '\0'; |
| 71 |
|
(*s_put)("\n"); |
| 72 |
+ |
} |
| 73 |
+ |
|
| 74 |
+ |
|
| 75 |
+ |
static char mybuf[512]; |
| 76 |
+ |
|
| 77 |
+ |
|
| 78 |
+ |
void |
| 79 |
+ |
tocombuf(b, d) /* add command(s) to my buffer */ |
| 80 |
+ |
register char *b; |
| 81 |
+ |
register struct driver *d; |
| 82 |
+ |
{ |
| 83 |
+ |
register char *cp; |
| 84 |
+ |
char *comstart; |
| 85 |
+ |
|
| 86 |
+ |
for (cp = mybuf; *cp; cp++) |
| 87 |
+ |
; |
| 88 |
+ |
comstart = cp; |
| 89 |
+ |
while ( (*cp++ = *b) ) |
| 90 |
+ |
if (cp >= mybuf+sizeof(mybuf)) { |
| 91 |
+ |
*comstart = '\0'; |
| 92 |
+ |
return; /* what should I do about this? */ |
| 93 |
+ |
} else if (*b++ == '\n') { |
| 94 |
+ |
d->inpready++; |
| 95 |
+ |
comstart = cp; |
| 96 |
+ |
} |
| 97 |
+ |
} |
| 98 |
+ |
|
| 99 |
+ |
|
| 100 |
+ |
int |
| 101 |
+ |
fromcombuf(b, d) /* get command from my buffer */ |
| 102 |
+ |
char *b; |
| 103 |
+ |
struct driver *d; |
| 104 |
+ |
{ |
| 105 |
+ |
register char *cp; |
| 106 |
+ |
/* get next command */ |
| 107 |
+ |
for (cp = mybuf; *cp != '\n'; cp++) |
| 108 |
+ |
if (!*cp) |
| 109 |
+ |
return(0); |
| 110 |
+ |
*cp++ = '\0'; |
| 111 |
+ |
#ifdef DEBUG |
| 112 |
+ |
(*d->comout)(mybuf); /* echo my command */ |
| 113 |
+ |
(*d->comout)("\n"); |
| 114 |
+ |
#endif |
| 115 |
+ |
/* send it as reply */ |
| 116 |
+ |
strcpy(b, mybuf); |
| 117 |
+ |
d->inpready--; |
| 118 |
+ |
/* advance commands */ |
| 119 |
+ |
strcpy(mybuf, cp); |
| 120 |
+ |
return(1); |
| 121 |
|
} |
