Add E_SYSTEM error.

Allow bookmarks to cross files.

Thorough revamp of how input commands are processed. This allows customization
of user keys (documentation pending). The only key whose semantics have
changed is the capital 'N' key, which now perf

Thorough revamp of how input commands are processed. This allows customization
of user keys (documentation pending). The only key whose semantics have
changed is the capital 'N' key, which now performs a repeat-search in the
opposite direction (just like in vi).

This commit is a little bulkier than what I had originally planned. I'm not
completely happy with the direction it went, but it's definately an
improvement, and the alternative is to continue becoming irrelevant compared
to GNU less. (Does anyone even _use_ /usr/bin/more these days?)

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$Id$ -> $FreeBSD$

Grok gtags too.

General code cleanup [incomplete]. Make the arrow keys work.

$Id$ -> $FreeBSD$

[Whoops... used ci -m instead of -F on the last commit...]

MFC: misc incidental cleanup, gtags support, better line-number passing to
$EDITOR, working arrow keys, $Id$ to manpage

commit-notes

1) Make ctype-aware expect chars in range 0200-0204 treated
as controls in any case.
2) Fix bug with incorrect column position when standouts occurse
3) Fix bug when last standouted char cause cleari

1) Make ctype-aware expect chars in range 0200-0204 treated
as controls in any case.
2) Fix bug with incorrect column position when standouts occurse
3) Fix bug when last standouted char cause clearing next line
in standout

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BSD 4.4 Lite Usr.bin Sources

Initial revision