/**************************************************************************
f i c l E v a l u a t e
** Wrapper for ficlExec() which sets SOURCE-ID to -1.
**************************************************************************/
int ficlEvaluate(FICL_VM *pVM, char *pText)
{
int returnValue;
CELL id = pVM->sourceID;
pVM->sourceID.i = -1;
returnValue = ficlExecC(pVM, pText, -1);
pVM->sourceID = id;
return returnValue;
}
int ficlExecFD(FICL_VM *pVM, int fd)
{
char cp[nLINEBUF];
int nLine = 0, rval = VM_OUTOFTEXT;
char ch;
CELL id;
id = pVM->sourceID;
pVM->sourceID.i = fd;
/* feed each line to ficlExec */
while (1) {
int status, i;
i = 0;
while ((status = read(fd, &ch, 1)) > 0 && ch != '\n')
cp[i++] = ch;
nLine++;
if (!i) {
if (status < 1)
break;
continue;
}
rval = ficlExecC(pVM, cp, i);
if(rval != VM_QUIT && rval != VM_USEREXIT && rval != VM_OUTOFTEXT)
{
pVM->sourceID = id;
return rval;
}
}
/*
** Pass an empty line with SOURCE-ID == -1 to flush
** any pending REFILLs (as required by FILE wordset)
*/
pVM->sourceID.i = -1;
ficlExec(pVM, "");
pVM->sourceID = id;
return rval;
}
static void ficlIncludeFile(FICL_VM *pVM) /* ( i*x fileid -- j*x ) */
{
ficlFILE *ff = (ficlFILE *)stackPopPtr(pVM->pStack);
CELL id = pVM->sourceID;
int result = VM_OUTOFTEXT;
long currentPosition, totalSize;
long size;
pVM->sourceID.p = (void *)ff;
currentPosition = ftell(ff->f);
totalSize = fileSize(ff->f);
size = totalSize - currentPosition;
if ((totalSize != -1) && (currentPosition != -1) && (size > 0))
{
char *buffer = (char *)malloc(size);
long got = fread(buffer, 1, size, ff->f);
if (got == size)
result = ficlExecC(pVM, buffer, size);
}
#if 0
ficlFILE *ff = (ficlFILE *)stackPopPtr(pVM->pStack);
CELL id = pVM->sourceID;
char cp[nLINEBUF];
int nLine = 0;
int keepGoing;
int result;
pVM->sourceID.p = (void *)ff;
/* feed each line to ficlExec */
keepGoing = TRUE;
while (keepGoing && fgets(cp, nLINEBUF, ff->f))
{
int len = strlen(cp) - 1;
nLine++;
if (len <= 0)
continue;
if (cp[len] == '\n')
cp[len] = '\0';
result = ficlExec(pVM, cp);
switch (result)
{
case VM_OUTOFTEXT:
case VM_USEREXIT:
break;
default:
pVM->sourceID = id;
keepGoing = FALSE;
break;
}
}
#endif /* 0 */
/*
** Pass an empty line with SOURCE-ID == -1 to flush
** any pending REFILLs (as required by FILE wordset)
*/
pVM->sourceID.i = -1;
ficlExec(pVM, "");
pVM->sourceID = id;
closeFiclFILE(ff);
}
static void ficlLoad(FICL_VM *pVM)
{
char cp[nLINEBUF];
char filename[nLINEBUF];
FICL_STRING *pFilename = (FICL_STRING *)filename;
int nLine = 0;
FILE *fp;
int result;
CELL id;
struct stat buf;
vmGetString(pVM, pFilename, '\n');
if (pFilename->count <= 0)
{
vmTextOut(pVM, "Warning (load): nothing happened", 1);
return;
}
/*
** get the file's size and make sure it exists
*/
result = stat( pFilename->text, &buf );
if (result != 0)
{
vmTextOut(pVM, "Unable to stat file: ", 0);
vmTextOut(pVM, pFilename->text, 1);
vmThrow(pVM, VM_QUIT);
}
fp = fopen(pFilename->text, "r");
if (!fp)
{
vmTextOut(pVM, "Unable to open file ", 0);
vmTextOut(pVM, pFilename->text, 1);
vmThrow(pVM, VM_QUIT);
}
id = pVM->sourceID;
pVM->sourceID.p = (void *)fp;
/* feed each line to ficlExec */
while (fgets(cp, nLINEBUF, fp))
{
int len = strlen(cp) - 1;
nLine++;
if (len <= 0)
continue;
result = ficlExecC(pVM, cp, len);
if (result != VM_QUIT && result != VM_USEREXIT && result != VM_OUTOFTEXT )
{
pVM->sourceID = id;
fclose(fp);
vmThrowErr(pVM, "Error loading file <%s> line %d", pFilename->text, nLine);
break;
}
}
/*
** Pass an empty line with SOURCE-ID == -1 to flush
** any pending REFILLs (as required by FILE wordset)
*/
pVM->sourceID.i = -1;
ficlExec(pVM, "");
pVM->sourceID = id;
fclose(fp);
/* handle "bye" in loaded files. --lch */
if (result == VM_USEREXIT)
vmThrow(pVM, VM_USEREXIT);
return;
}
/**************************************************************************
f i c l E x e c
** Evaluates a block of input text in the context of the
** specified interpreter. Emits any requested output to the
** interpreter's output function.
**
** Contains the "inner interpreter" code in a tight loop
**
** Returns one of the VM_XXXX codes defined in ficl.h:
** VM_OUTOFTEXT is the normal exit condition
** VM_ERREXIT means that the interp encountered a syntax error
** and the vm has been reset to recover (some or all
** of the text block got ignored
** VM_USEREXIT means that the user executed the "bye" command
** to shut down the interpreter. This would be a good
** time to delete the vm, etc -- or you can ignore this
** signal.
**************************************************************************/
int ficlExec(FICL_VM *pVM, char *pText)
{
return ficlExecC(pVM, pText, -1);
}