0e3d540892
This contains the full eti (panel, form, menu) extensions. bmake glue to follow. Obtained from: ftp://ftp.clark.net/pub/dickey/ncurses
290 lines
8.3 KiB
C
290 lines
8.3 KiB
C
|
|
/*
|
|
* THIS CODE IS SPECIFICALLY EXEMPTED FROM THE NCURSES PACKAGE COPYRIGHT.
|
|
* You may freely copy it for use as a template for your own field types.
|
|
* If you develop a field type that might be of general use, please send
|
|
* it back to the ncurses maintainers for inclusion in the next version.
|
|
*/
|
|
/***************************************************************************
|
|
* *
|
|
* Author : Juergen Pfeifer, juergen.pfeifer@gmx.net *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
#include "form.priv.h"
|
|
|
|
MODULE_ID("$Id: fty_enum.c,v 1.10 1999/05/16 17:23:14 juergen Exp $")
|
|
|
|
typedef struct {
|
|
char **kwds;
|
|
int count;
|
|
bool checkcase;
|
|
bool checkunique;
|
|
} enumARG;
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static void *Make_Enum_Type( va_list * ap )
|
|
|
|
|
| Description : Allocate structure for enumeration type argument.
|
|
|
|
|
| Return Values : Pointer to argument structure or NULL on error
|
|
+--------------------------------------------------------------------------*/
|
|
static void *Make_Enum_Type(va_list * ap)
|
|
{
|
|
enumARG *argp = (enumARG *)malloc(sizeof(enumARG));
|
|
char **kp;
|
|
int cnt=0;
|
|
|
|
if (argp)
|
|
{
|
|
int ccase, cunique;
|
|
argp->kwds = va_arg(*ap,char **);
|
|
ccase = va_arg(*ap,int);
|
|
cunique = va_arg(*ap,int);
|
|
argp->checkcase = ccase ? TRUE : FALSE;
|
|
argp->checkunique = cunique ? TRUE : FALSE;
|
|
|
|
kp = argp->kwds;
|
|
while( (*kp++) ) cnt++;
|
|
argp->count = cnt;
|
|
}
|
|
return (void *)argp;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static void *Copy_Enum_Type( const void * argp )
|
|
|
|
|
| Description : Copy structure for enumeration type argument.
|
|
|
|
|
| Return Values : Pointer to argument structure or NULL on error.
|
|
+--------------------------------------------------------------------------*/
|
|
static void *Copy_Enum_Type(const void * argp)
|
|
{
|
|
const enumARG *ap = (const enumARG *)argp;
|
|
enumARG *result = (enumARG *)0;
|
|
|
|
if (argp)
|
|
{
|
|
result = (enumARG *)malloc(sizeof(enumARG));
|
|
if (result)
|
|
*result = *ap;
|
|
}
|
|
return (void *)result;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static void Free_Enum_Type( void * argp )
|
|
|
|
|
| Description : Free structure for enumeration type argument.
|
|
|
|
|
| Return Values : -
|
|
+--------------------------------------------------------------------------*/
|
|
static void Free_Enum_Type(void * argp)
|
|
{
|
|
if (argp)
|
|
free(argp);
|
|
}
|
|
|
|
#define SKIP_SPACE(x) while(((*(x))!='\0') && (is_blank(*(x)))) (x)++
|
|
#define NOMATCH 0
|
|
#define PARTIAL 1
|
|
#define EXACT 2
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static int Compare(const unsigned char * s,
|
|
| const unsigned char * buf,
|
|
| bool ccase )
|
|
|
|
|
| Description : Check wether or not the text in 'buf' matches the
|
|
| text in 's', at least partial.
|
|
|
|
|
| Return Values : NOMATCH - buffer doesn't match
|
|
| PARTIAL - buffer matches partially
|
|
| EXACT - buffer matches exactly
|
|
+--------------------------------------------------------------------------*/
|
|
static int Compare(const unsigned char *s, const unsigned char *buf,
|
|
bool ccase)
|
|
{
|
|
SKIP_SPACE(buf); /* Skip leading spaces in both texts */
|
|
SKIP_SPACE(s);
|
|
|
|
if (*buf=='\0')
|
|
{
|
|
return (((*s)!='\0') ? NOMATCH : EXACT);
|
|
}
|
|
else
|
|
{
|
|
if (ccase)
|
|
{
|
|
while(*s++ == *buf)
|
|
{
|
|
if (*buf++=='\0') return EXACT;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while(toupper(*s++)==toupper(*buf))
|
|
{
|
|
if (*buf++=='\0') return EXACT;
|
|
}
|
|
}
|
|
}
|
|
/* At this location buf points to the first character where it no longer
|
|
matches with s. So if only blanks are following, we have a partial
|
|
match otherwise there is no match */
|
|
SKIP_SPACE(buf);
|
|
if (*buf)
|
|
return NOMATCH;
|
|
|
|
/* If it happens that the reference buffer is at its end, the partial
|
|
match is actually an exact match. */
|
|
return ((s[-1]!='\0') ? PARTIAL : EXACT);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static bool Check_Enum_Field(
|
|
| FIELD * field,
|
|
| const void * argp)
|
|
|
|
|
| Description : Validate buffer content to be a valid enumeration value
|
|
|
|
|
| Return Values : TRUE - field is valid
|
|
| FALSE - field is invalid
|
|
+--------------------------------------------------------------------------*/
|
|
static bool Check_Enum_Field(FIELD * field, const void * argp)
|
|
{
|
|
char **kwds = ((const enumARG *)argp)->kwds;
|
|
bool ccase = ((const enumARG *)argp)->checkcase;
|
|
bool unique = ((const enumARG *)argp)->checkunique;
|
|
unsigned char *bp = (unsigned char *)field_buffer(field,0);
|
|
char *s, *t, *p;
|
|
int res;
|
|
|
|
while( (s=(*kwds++)) )
|
|
{
|
|
if ((res=Compare((unsigned char *)s,bp,ccase))!=NOMATCH)
|
|
{
|
|
p=t=s; /* t is at least a partial match */
|
|
if ((unique && res!=EXACT))
|
|
{
|
|
while( (p = *kwds++) )
|
|
{
|
|
if ((res=Compare((unsigned char *)p,bp,ccase))!=NOMATCH)
|
|
{
|
|
if (res==EXACT)
|
|
{
|
|
t = p;
|
|
break;
|
|
}
|
|
else
|
|
t = (char *)0;
|
|
}
|
|
}
|
|
}
|
|
if (t)
|
|
{
|
|
set_field_buffer(field,0,t);
|
|
return TRUE;
|
|
}
|
|
if (!p)
|
|
break;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static const char *dummy[] = { (char *)0 };
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static bool Next_Enum(FIELD * field,
|
|
| const void * argp)
|
|
|
|
|
| Description : Check for the next enumeration value
|
|
|
|
|
| Return Values : TRUE - next value found and loaded
|
|
| FALSE - no next value loaded
|
|
+--------------------------------------------------------------------------*/
|
|
static bool Next_Enum(FIELD * field, const void * argp)
|
|
{
|
|
const enumARG *args = (const enumARG *)argp;
|
|
char **kwds = args->kwds;
|
|
bool ccase = args->checkcase;
|
|
int cnt = args->count;
|
|
unsigned char *bp = (unsigned char *)field_buffer(field,0);
|
|
|
|
while(cnt--)
|
|
{
|
|
if (Compare((unsigned char *)(*kwds++),bp,ccase)==EXACT)
|
|
break;
|
|
}
|
|
if (cnt<=0)
|
|
kwds = args->kwds;
|
|
if ((cnt>=0) || (Compare((unsigned char *)dummy,bp,ccase)==EXACT))
|
|
{
|
|
set_field_buffer(field,0,*kwds);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
| Facility : libnform
|
|
| Function : static bool Previous_Enum(
|
|
| FIELD * field,
|
|
| const void * argp)
|
|
|
|
|
| Description : Check for the previous enumeration value
|
|
|
|
|
| Return Values : TRUE - previous value found and loaded
|
|
| FALSE - no previous value loaded
|
|
+--------------------------------------------------------------------------*/
|
|
static bool Previous_Enum(FIELD * field, const void * argp)
|
|
{
|
|
const enumARG *args = (const enumARG *)argp;
|
|
int cnt = args->count;
|
|
char **kwds = &args->kwds[cnt-1];
|
|
bool ccase = args->checkcase;
|
|
unsigned char *bp = (unsigned char *)field_buffer(field,0);
|
|
|
|
while(cnt--)
|
|
{
|
|
if (Compare((unsigned char *)(*kwds--),bp,ccase)==EXACT)
|
|
break;
|
|
}
|
|
|
|
if (cnt<=0)
|
|
kwds = &args->kwds[args->count-1];
|
|
|
|
if ((cnt>=0) || (Compare((unsigned char *)dummy,bp,ccase)==EXACT))
|
|
{
|
|
set_field_buffer(field,0,*kwds);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static FIELDTYPE typeENUM = {
|
|
_HAS_ARGS | _HAS_CHOICE | _RESIDENT,
|
|
1, /* this is mutable, so we can't be const */
|
|
(FIELDTYPE *)0,
|
|
(FIELDTYPE *)0,
|
|
Make_Enum_Type,
|
|
Copy_Enum_Type,
|
|
Free_Enum_Type,
|
|
Check_Enum_Field,
|
|
NULL,
|
|
Next_Enum,
|
|
Previous_Enum
|
|
};
|
|
|
|
FIELDTYPE* TYPE_ENUM = &typeENUM;
|
|
|
|
/* fty_enum.c ends here */
|