Base class for syntax highlighters. Provides syntax highlighting data to a [TextEdit]. Base class for syntax highlighters. Provides syntax highlighting data to a [TextEdit]. The associated [TextEdit] will call into the [SyntaxHighlighter] on an as-needed basis. [b]Note:[/b] A [SyntaxHighlighter] instance should not be used across multiple [TextEdit] nodes. Virtual method which can be overridden to clear any local caches. Virtual method which can be overridden to return syntax highlighting data. See [method get_line_syntax_highlighting] for more details. Virtual method which can be overridden to update any local caches. Clears all cached syntax highlighting data. Then calls overridable method [method _clear_highlighting_cache]. Returns the syntax highlighting data for the line at index [param line]. If the line is not cached, calls [method _get_line_syntax_highlighting] first to calculate the data. Each entry is a column number containing a nested [Dictionary]. The column number denotes the start of a region, the region will end if another region is found, or at the end of the line. The nested [Dictionary] contains the data for that region. Currently only the key [code]"color"[/code] is supported. [b]Example:[/b] Possible return value. This means columns [code]0[/code] to [code]4[/code] should be red, and columns [code]5[/code] to the end of the line should be green: [codeblock] { 0: { "color": Color(1, 0, 0) }, 5: { "color": Color(0, 1, 0) } } [/codeblock] Returns the associated [TextEdit] node. Clears then updates the [SyntaxHighlighter] caches. Override [method _update_cache] for a callback. [b]Note:[/b] This is called automatically when the associated [TextEdit] node, updates its own cache.