Lutz Justen 1200b34316 [common] Add ansi_filter (#73) ...

Adds a function to filter ANSI escape sequences from a string.
Executing SSH commands on Windows yields output that is full of ANSI
escape sequences if the "-tt" (forced TTY) argument is used. One
particular escape sequence sets the window title to
"c:\windows\system32\cmd.exe". This string is null terminated and
messes with parsing the actual output later in that string.
The filter function removes those escape sequences.

The outout is still a bit messed up, even after removing escape
sequences. Some sequences delete rows and move the cursor. Without
properly interpreting these sequences it doesn't seem possible to
retrieve the proper output.

In a future CL the -tt argument is removed on Windows, which removes
the necessity to filter ANSI codes. However, sometimes the target
architecture is not known (yet), so that it is still useful to filter
ANSI codes in that case to print useful debug output.

2023-01-31 14:53:43 +01:00

23 KiB

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