Re^2: Perl ignores lines with bold characters from a pipe on Windows

Definitely nothing going to STDERR.

In case it matters, the bold lines look this:
C:\a\file [AFLAG]

Perhaps the bolded '[' means something to perl IO? I'm grasping at straws.

Comment on Re^2: Perl ignores lines with bold characters from a pipe on Windows

Replies are listed 'Best First'.
Re^3: Perl ignores lines with bold characters from a pipe on Windows by blazar (Canon) on Mar 03, 2007 at 14:30 UTC
In case it matters, the bold lines look this: C:\a\file [AFLAG] Well, text is text, and it knows no intrinsic notion of charachter attributes, like bold. However one early, conceptually simple and long-lasting strategy to achieve them was and is by means of ANSI escape codes: support for them is built in under Linux. Back in the days of good 'ol DOS, you would use the `ANSI.SYS` device driver to enable them. (And at some point ANSI art flourished.) This remained possible up to the 9.x Windows releases, but NT based ones do not support it anymore, which is the reason why dedicated ANSI art viewers and, speaking of Perl, a module like Win32::Console::ANSI exist. Thus a program that wants to output charachters with attributes under recent Windowsen needs to dialogue directly with the console APIs, e.g. in Perl by means of Win32::Console upon which Win32::Console::ANSI relies. Chances are that it is not perl that "ignores" lines with bold charachters, but that those lines are not printed to `STDOUT` at all.	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^3: Perl ignores lines with bold characters from a pipe on Windows
by blazar (Canon) on Mar 03, 2007 at 14:30 UTC

In case it matters, the bold lines look this:
C:\a\file [AFLAG]

Well, text is text, and it knows no intrinsic notion of charachter attributes, like bold. However one early, conceptually simple and long-lasting strategy to achieve them was and is by means of ANSI escape codes: support for them is built in under Linux. Back in the days of good 'ol DOS, you would use the ANSI.SYS device driver to enable them. (And at some point ANSI art flourished.) This remained possible up to the 9.x Windows releases, but NT based ones do not support it anymore, which is the reason why dedicated ANSI art viewers and, speaking of Perl, a module like Win32::Console::ANSI exist. Thus a program that wants to output charachters with attributes under recent Windowsen needs to dialogue directly with the console APIs, e.g. in Perl by means of Win32::Console upon which Win32::Console::ANSI relies. Chances are that it is not perl that "ignores" lines with bold charachters, but that those lines are not printed to STDOUT at all.

[reply]
[d/l]
[select]