C++ (Cpp) cf_peek_valid_token示例

示例#1

文件： effect-parser.c 项目： Dead133/obs-studio

static void ep_parse_sampler_state(struct effect_parser *ep)
{
	struct ep_sampler eps;
	struct cf_token peek;
	ep_sampler_init(&eps);

	if (cf_next_name(&ep->cfp, &eps.name, "name", ";") != PARSE_SUCCESS)
		goto error;
	if (cf_next_token_should_be(&ep->cfp, "{", ";", NULL) != PARSE_SUCCESS)
		goto error;

	if (!cf_peek_valid_token(&ep->cfp, &peek))
		goto error;

	while (strref_cmp(&peek.str, "}") != 0) {
		int ret = ep_parse_sampler_state_item(ep, &eps);
		if (ret == PARSE_EOF)
			goto error;

		if (!cf_peek_valid_token(&ep->cfp, &peek))
			goto error;
	}

	if (cf_next_token_should_be(&ep->cfp, "}", ";", NULL) != PARSE_SUCCESS)
		goto error;
	if (cf_next_token_should_be(&ep->cfp, ";", NULL, NULL) != PARSE_SUCCESS)
		goto error;

	da_push_back(ep->samplers, &eps);
	return;

error:
	ep_sampler_free(&eps);
}

示例#2

文件： effect-parser.c 项目： Dead133/obs-studio

static int ep_parse_pass(struct effect_parser *ep, struct ep_pass *pass)
{
	struct cf_token peek;

	if (!cf_token_is(&ep->cfp, "pass"))
		return PARSE_UNEXPECTED_CONTINUE;

	if (!cf_next_valid_token(&ep->cfp)) return PARSE_EOF;

	if (!cf_token_is(&ep->cfp, "{")) {
		pass->name = bstrdup_n(ep->cfp.cur_token->str.array,
					ep->cfp.cur_token->str.len);
		if (!cf_next_valid_token(&ep->cfp)) return PARSE_EOF;
	}

	if (!cf_peek_valid_token(&ep->cfp, &peek)) return PARSE_EOF;

	while (strref_cmp(&peek.str, "}") != 0) {
		int ret = ep_parse_pass_command(ep, pass);
		if (ret < 0 && ret != PARSE_CONTINUE)
			return ret;

		if (!cf_peek_valid_token(&ep->cfp, &peek))
			return PARSE_EOF;
	}

	/* token is '}' */
	cf_next_token(&ep->cfp);

	return PARSE_SUCCESS;
}

示例#3

文件： shader-parser.c 项目： AlexNe/obs-studio

static void sp_parse_sampler_state(struct shader_parser *sp)
{
	struct shader_sampler ss;
	struct cf_token peek;
	shader_sampler_init(&ss);

	if (cf_next_name(&sp->cfp, &ss.name, "name", ";") != PARSE_SUCCESS)
		goto error;
	if (cf_next_token_should_be(&sp->cfp, "{", ";", NULL) != PARSE_SUCCESS)
		goto error;

	if (!cf_peek_valid_token(&sp->cfp, &peek))
		goto error;

	while (strref_cmp(&peek.str, "}") != 0) {
		int ret = sp_parse_sampler_state_item(sp, &ss);
		if (ret == PARSE_EOF)
			goto error;

		if (!cf_peek_valid_token(&sp->cfp, &peek))
			goto error;
	}

	if (cf_next_token_should_be(&sp->cfp, "}", ";", NULL) != PARSE_SUCCESS)
		goto error;
	if (cf_next_token_should_be(&sp->cfp, ";", NULL, NULL) != PARSE_SUCCESS)
		goto error;

	da_push_back(sp->samplers, &ss);
	return;

error:
	shader_sampler_free(&ss);
}

示例#4

文件： shader-parser.c 项目： AlexNe/obs-studio

static bool sp_parse_func_params(struct shader_parser *sp,
		struct shader_func *func)
{
	struct cf_token peek;
	int code;

	cf_token_clear(&peek);

	if (!cf_peek_valid_token(&sp->cfp, &peek))
		return false;

	if (*peek.str.array == ')') {
		cf_next_token(&sp->cfp);
		goto exit;
	}

	do {
		struct shader_var var;
		shader_var_init(&var);

		if (!cf_token_is(&sp->cfp, "(") && !cf_token_is(&sp->cfp, ","))
			cf_adderror_syntax_error(&sp->cfp);

		code = sp_parse_func_param(sp, &var);
		if (code != PARSE_SUCCESS) {
			shader_var_free(&var);

			if (code == PARSE_CONTINUE)
				goto exit;
			else if (code == PARSE_EOF)
				return false;
		}

		da_push_back(func->params, &var);
	} while (!cf_token_is(&sp->cfp, ")"));

exit:
	return true;
}