stripHtmlIfNeeded static method
Returns the input text
with spaces instead of HTML tags or HTML escapes,
which is helpful for text directionality estimation.
Note: This function should not be used in other contexts.
It does not deal well with many things: comments, script,
elements, style elements, dir attribute,>
in quoted attribute values,
etc. But it does handle well enough the most common use cases.
Since the worst that can happen as a result of these shortcomings is that
the wrong directionality will be estimated, we have not invested in
improving this.
Implementation
static String stripHtmlIfNeeded(String text) {
// The regular expression is simplified for an HTML tag (opening or
// closing) or an HTML escape. We might want to skip over such expressions
// when estimating the text directionality.
return text.replaceAll(RegExp(r'<[^>]*>|&[^;]+;'), ' ');
}