/*
 * Copyright 2011 Jacek Caban for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <assert.h>

#include "vbscript.h"
#include "parse.h"
#include "parser.tab.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(vbscript);

static int parse_next_token(void *lval, parser_ctx_t *ctx)
{
    WCHAR c;

    while(*ctx->ptr == ' ' || *ctx->ptr == '\t' || *ctx->ptr == '\r')
        ctx->ptr++;
    if(ctx->ptr == ctx->end)
        return ctx->last_token == tNL ? tEOF : tNL;

    c = *ctx->ptr;
    FIXME("Unhandled char %c in %s\n", *ctx->ptr, debugstr_w(ctx->ptr));
    return c;
}

int parser_lex(void *lval, parser_ctx_t *ctx)
{
    int ret;

    while(1) {
        ret = parse_next_token(lval, ctx);
        if(ret != tNL || ctx->last_token != tNL)
            break;

        ctx->last_nl = ctx->ptr-ctx->code;
    }

    return (ctx->last_token = ret);
}