message abstract method
Formats message in a human-friendly way associated with this span.
color
may either be a String, a bool, or null
. If it's a string,
it indicates an ANSI terminal color escape that should
be used to highlight the span's text (for example, "\u001b[31m"
will
color red). If it's true
, it indicates that the text should be
highlighted using the default color. If it's false
or null
, it
indicates that the text shouldn't be highlighted.
This uses the full range of Unicode characters to highlight the source
span if glyph.ascii is false
(the default), but only uses ASCII
characters if it's true
.
Implementation
String message(String message, {Object? color});