commit: Fix bug 2933.

From: Martin Sevior (msevior@mccubbin.ph.unimelb.edu.au)
Date: Thu Mar 21 2002 - 04:45:33 EST

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CVS: ----------------------------------------------------------------------
CVS: Enter Log. Lines beginning with `CVS:' are removed automatically
CVS:
CVS: Committing in .
CVS:
CVS: Modified Files:
CVS: src/text/fmt/xp/fl_BlockLayout.cpp
CVS: src/text/fmt/xp/fl_Squiggles.cpp
CVS: src/text/fmt/xp/fl_Squiggles.h
CVS: ----------------------------------------------------------------------
fix bug 2933. AbiCrashes on edit header.

The code in fl_Squggles holds a cache of the length of the block. When
text is deleted the PT gets reduces but fl_Squiggles attempts to do stuff
before updating its cahces. It tries to acces peicetable locations outside
the range of atual text.

The solution was to check the document bounds and if the position of the
last place in the document wis past the end of document adjust it to make
it back to something sane.

Cheers

Martin

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