So, I'm having an issue. I'm catching some stuff from a Logger, And the output looks something like this:
11:41:19 [INFO] ←[35;1m[Server] hi←[m
I need to know how to remove those pesky ASCII color codes (or to parse them).
If they're intact, they should consist of ESC (U+001B
) plus [
plus a semicolon-separated list of numbers, plus m
. (See https://stackoverflow.com/a/9943250/978917.) In that case, you can remove them by writing:
final String msgWithoutColorCodes =
msgWithColorCodes.replaceAll("\u001B\\[[;\\d]*m", "");
. . . or you can take advantage of them by using less -r
when examining your logs. :-)
(Note: this is specific to color codes. If you also find other ANSI escape sequences, you'll want to generalize that a bit. I think a fairly general regex would be \u001B\\[[;\\d]*[ -/]*[@-~]
. You may find http://en.wikipedia.org/wiki/ANSI_escape_code to be helpful.)
If the sequences are not intact — that is, if they've been mangled in some way — then you'll have to investigate and figure out exactly what mangling has happened.