[OpenSER-Devel] [ openser-Bugs-1765327 ] XLOG: color ANSI code not usable for colorize system log

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Bugs item #1765327, was opened at 2007-08-01 16:28
Message generated for change (Comment added) made by dan_pascu
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Category: modules
Group: ver 1.2.x
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Iñaki Baz (ibc_sf)
Assigned to: Nobody/Anonymous (nobody)
Summary: XLOG: color ANSI code not usable for colorize system log

Initial Comment:
In background mode I'm trying to colorize openser logs.

I use XLOG with the syntax $(Cxx) and so and works nice in foregorund mode:

  xlog("L_INFO", "$(Csc)$rm $ru$(Cxx)\n");

But ni background mode it generates logs like:

  ^[[0;30;46mINVITE sip:500 at domain.org


I wonder why it doesn't generate correct ANSI code:

  \033[0;30;46m  <-- correct ANSI code
instead of:
  ^[[0;30;46m

If it would generate \033[0;30;46m (correct ANSI code) then I could colorize the log file using multitail and other colorize solutions that understand ANSI code.

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>Comment By: Dan (dan_pascu)
Date: 2007-08-01 21:47

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Most likely because the ^[ were introduced as 2 distinct characters, as
oposed to ^[ which is control-[ i.e. the \x1b or \033 character. When I
typed ^[ I really meant control-[ not the 2 distinct chars ^ and [. If this
is generated in the C code then it would be easier to write it as \033 or
\x1b because ^[ is just a notation to indicate control-[ not 2 distinct
characters.


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Comment By: Iñaki Baz (ibc_sf)
Date: 2007-08-01 18:26

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Then, why the following command in Bash terminal print "HELLO" in color:

  echo -e "\033[0;30;46mHELLO"

while this one:

  echo -e "^[[0;30;46mHELLO"

prints ^[[0;30;46mHELLO with no color at all?

Thanks for your response.

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Comment By: Dan (dan_pascu)
Date: 2007-08-01 17:39

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\033 and ^[ are the same code that corresponds to ESC (0x1b). It should
work with either one, they're just different notations of the same thing.


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