WEBVTT_INTERN webvtt_status
webvtt_data_state( webvtt_byte **position, webvtt_token_state *token_state,
webvtt_string *result )
{
for ( ; *token_state == DATA; (*position)++ ) {
switch( **position ) {
case UTF8_AMPERSAND:
*token_state = ESCAPE;
break;
case UTF8_LESS_THAN:
if( webvtt_string_length(result) == 0 ) {
*token_state = TAG;
} else {
return WEBVTT_SUCCESS;
}
break;
case UTF8_NULL_BYTE:
return WEBVTT_SUCCESS;
break;
default:
CHECK_MEMORY_OP( webvtt_string_putc( result, *position[0] ) );
break;
}
}
return WEBVTT_UNFINISHED;
}
WEBVTT_INTERN webvtt_status
webvtt_node_kind_from_tag_name( webvtt_string *tag_name, webvtt_node_kind *kind )
{
if( !tag_name || !kind ) {
return WEBVTT_INVALID_PARAM;
}
if( webvtt_string_length(tag_name) == 1 ) {
switch( webvtt_string_text(tag_name)[0] ) {
case( UTF8_B ):
*kind = WEBVTT_BOLD;
break;
case( UTF8_I ):
*kind = WEBVTT_ITALIC;
break;
case( UTF8_U ):
*kind = WEBVTT_UNDERLINE;
break;
case( UTF8_C ):
*kind = WEBVTT_CLASS;
break;
case( UTF8_V ):
*kind = WEBVTT_VOICE;
break;
}
} else if( webvtt_string_is_equal( tag_name, "ruby", 4 ) ) {
*kind = WEBVTT_RUBY;
} else if( webvtt_string_is_equal( tag_name, "rt", 2 ) ) {
*kind = WEBVTT_RUBY_TEXT;
} else {
return WEBVTT_INVALID_TAG_NAME;
}
return WEBVTT_SUCCESS;
}
WEBVTT_EXPORT webvtt_status
webvtt_cue_validate_set_settings( webvtt_parser self, webvtt_cue *cue,
const webvtt_string *settings )
{
int line = 1;
int column = 0;
int length;
const char *eol;
int position = 0;
webvtt_status s;
if( !cue || !settings ) {
return WEBVTT_INVALID_PARAM;
}
length = (int)webvtt_string_length( settings );
if( ( eol = strchr( webvtt_string_text( settings ), '\r' ) )
|| ( eol = strchr( webvtt_string_text( settings ), '\n' ) ) ) {
length = (int)( eol - webvtt_string_text( settings ) );
}
if( self ) {
line = self->line;
column = self->column;
}
/**
* http://www.w3.org/html/wg/drafts/html/master/single-page.html#split-a-string-on-spaces
* 4. Skip whitespace
*/
column += webvtt_string_skip_whitespace( settings, &position );
while( position < length ) {
webvtt_string word;
const char *keyword;
const char *end;
int nwhite, ncol;
/* Collect word (sequence of non-space characters terminated by space) */
if( WEBVTT_FAILED( webvtt_string_collect_word( settings, &word,
&position ) ) ) {
return WEBVTT_OUT_OF_MEMORY;
}
/* skip trailing whitespace */
nwhite = webvtt_string_skip_whitespace( settings, &position );
/* Get the word text */
keyword = webvtt_string_text( &word );
/* Get pointer to end of the word. (for chcount()) */
end = keyword + webvtt_string_length( &word );
/* Get the column count that needs to be skipped. */
ncol = webvtt_utf8_chcount( keyword, end );
if( WEBVTT_FAILED( s = webvtt_cue_set_setting_from_string( cue,
keyword ) ) ) {
if( self ) {
/* Figure out which error to emit */
webvtt_error error;
if( webvtt_error_for_status( s, &error ) ) {
/* There is no non-recoverable cue-setting error.
Therefore we do not want to abort the loop, regardless
of the return value from the error handler. */
WARNING_AT( error, line, column );
}
}
}
/* Move column pointer beyond word and trailing whitespace */
column += ncol + nwhite;
webvtt_release_string( &word );
}
if( self ) {
self->column = column;
}
return WEBVTT_SUCCESS;
}
