示例#1
0
/*
 * Initialise the Forth interpreter, create all our commands as words.
 */
void
bf_init(void)
{
    struct bootblk_command	**cmdp;
    char create_buf[41];	/* 31 characters-long builtins */
    int fd;
   
    ficlInitSystem(8000);	/* Default dictionary ~4000 cells */
    bf_vm = ficlNewVM();

    /* Builtin constructor word  */
    ficlExec(bf_vm, BUILTIN_CONSTRUCTOR, -1);

    /* make all commands appear as Forth words */
    SET_FOREACH(cmdp, Xcommand_set) {
	ficlBuild((*cmdp)->c_name, bf_command, FW_DEFAULT);
	sprintf(create_buf, "builtin: %s", (*cmdp)->c_name);
	ficlExec(bf_vm, create_buf, -1);
    }
示例#2
0
/*
 * Initialise the Forth interpreter, create all our commands as words.
 */
void
bf_init(void)
{
    struct bootblk_command	**cmdp;
    char create_buf[41];	/* 31 characters-long builtins */
    int fd;
   
    bf_sys = ficlInitSystem(10000);	/* Default dictionary ~4000 cells */
    bf_vm = ficlNewVM(bf_sys);

    /* Put all private definitions in a "builtins" vocabulary */
    ficlExec(bf_vm, "vocabulary builtins also builtins definitions");

    /* Builtin constructor word  */
    ficlExec(bf_vm, BUILTIN_CONSTRUCTOR);

    /* make all commands appear as Forth words */
    SET_FOREACH(cmdp, Xcommand_set) {
	ficlBuild(bf_sys, (char *)(*cmdp)->c_name, bf_command, FW_DEFAULT);
	ficlExec(bf_vm, "forth definitions builtins");
	sprintf(create_buf, "builtin: %s", (*cmdp)->c_name);
	ficlExec(bf_vm, create_buf);
	ficlExec(bf_vm, "builtins definitions");
    }
示例#3
0
文件: loader.c 项目: AhmadTux/freebsd
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;
}
int main(int argc, char **argv)
{
    char in[256];
    FICL_VM *pVM;
	FICL_SYSTEM *pSys;

    pSys = ficlInitSystem(10000);
    buildTestInterface(pSys);
    pVM = ficlNewVM(pSys);

    ficlEvaluate(pVM, ".ver .( " __DATE__ " ) cr quit");

    /*
    ** load file from cmd line...
    */
    if (argc  > 1)
    {
        sprintf(in, ".( loading %s ) cr load %s\n cr", argv[1], argv[1]);
        ficlEvaluate(pVM, in);
    }

    for (;;)
    {
        int ret;
        if (fgets(in, sizeof(in) - 1, stdin) == NULL)
	    break;
        ret = ficlExec(pVM, in);
        if (ret == VM_USEREXIT)
        {
            ficlTermSystem(pSys);
            break;
        }
    }

    return 0;
}
示例#5
0
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;
}