yaml_stream_end_event_initialize(yaml_event_t *event)
{
yaml_mark_t mark = { 0, 0, 0 };
assert(event); /* Non-NULL event object is expected. */
STREAM_END_EVENT_INIT(*event, mark, mark);
return 1;
}
yaml_emitter_close(yaml_emitter_t *emitter)
{
yaml_event_t event;
yaml_mark_t mark = { 0, 0, 0 };
assert(emitter); /* Non-NULL emitter object is required. */
assert(emitter->opened); /* Emitter should be opened. */
if (emitter->closed) return 1;
STREAM_END_EVENT_INIT(event, mark, mark);
if (!yaml_emitter_emit(emitter, &event)) {
return 0;
}
emitter->closed = 1;
return 1;
}
static int
yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event,
int implicit)
{
yaml_token_t *token;
yaml_version_directive_t *version_directive = NULL;
struct {
yaml_tag_directive_t *start;
yaml_tag_directive_t *end;
} tag_directives = { NULL, NULL };
token = PEEK_TOKEN(parser);
if (!token) return 0;
/* Parse extra document end indicators. */
if (!implicit)
{
while (token->type == YAML_DOCUMENT_END_TOKEN) {
SKIP_TOKEN(parser);
token = PEEK_TOKEN(parser);
if (!token) return 0;
}
}
/* Parse an implicit document. */
if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN &&
token->type != YAML_TAG_DIRECTIVE_TOKEN &&
token->type != YAML_DOCUMENT_START_TOKEN &&
token->type != YAML_STREAM_END_TOKEN)
{
if (!yaml_parser_process_directives(parser, NULL, NULL, NULL))
return 0;
if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))
return 0;
parser->state = YAML_PARSE_BLOCK_NODE_STATE;
DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1,
token->start_mark, token->start_mark);
return 1;
}
/* Parse an explicit document. */
else if (token->type != YAML_STREAM_END_TOKEN)
{
yaml_mark_t start_mark, end_mark;
start_mark = token->start_mark;
if (!yaml_parser_process_directives(parser, &version_directive,
&tag_directives.start, &tag_directives.end))
return 0;
token = PEEK_TOKEN(parser);
if (!token) goto error;
if (token->type != YAML_DOCUMENT_START_TOKEN) {
yaml_parser_set_parser_error(parser,
"did not find expected <document start>", token->start_mark);
goto error;
}
if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE))
goto error;
parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE;
end_mark = token->end_mark;
DOCUMENT_START_EVENT_INIT(*event, version_directive,
tag_directives.start, tag_directives.end, 0,
start_mark, end_mark);
SKIP_TOKEN(parser);
version_directive = NULL;
tag_directives.start = tag_directives.end = NULL;
return 1;
}
/* Parse the stream end. */
else
{
parser->state = YAML_PARSE_END_STATE;
STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
SKIP_TOKEN(parser);
return 1;
}
error:
yaml_free(version_directive);
while (tag_directives.start != tag_directives.end) {
yaml_free(tag_directives.end[-1].handle);
yaml_free(tag_directives.end[-1].prefix);
tag_directives.end --;
}
yaml_free(tag_directives.start);
return 0;
}
