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DEPM: allow to delete empty paragraphs after deleting extra spaces

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Remove return statement when spaces have been deleted.

Add an early return in part 2 when current paragraph is not empty.

Remove some comments that concern things that are OK now.
This commit is contained in:
Jean-Marc Lasgouttes 2019-02-15 16:23:46 +01:00
parent aaab1ad65d
commit 386a347484
1 changed files with 32 additions and 39 deletions
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29
src/Text2.cpp
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@ -818,6 +818,7 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
Paragraph & oldpar = old.paragraph();
bool const trackChanges = cur.buffer()->params().track_changes;
bool result = false;
// We do nothing if cursor did not move
if (cur.top() == old.top())
@ -842,8 +843,7 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
* them, but only if the cursor has really moved.
*/
/* Ok I'll put some comments here about what is missing.
There are still some small problems that can lead to
/* There are still some small problems that can lead to
double spaces stored in the document file or space at
the beginning of paragraphs(). This happens if you have
the cursor between two spaces and then save. Or if you
@ -851,14 +851,6 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
beginning and then save right after the paste. (Lgb)
*/
// If old.pos() == 0 and old.pos()(1) == LineSeparator
// delete the LineSeparator.
// MISSING
// If old.pos() == 1 and old.pos()(0) == LineSeparator
// delete the LineSeparator.
// MISSING
// find range of spaces around cursors
pos_type from = old.pos();
while (from > 0
@ -894,7 +886,7 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
cur[depth].pos() = min(from + 1, old.lastpos());
need_anchor_change = true;
}
return true;
result = true;
}
/*
@ -903,17 +895,20 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
// only do our other magic if we changed paragraph
if (same_par)
return false;
return result;
// only do our magic if the paragraph is empty
if (!oldpar.empty())
return result;
// don't delete anything if this is the ONLY paragraph!
if (old.lastpit() == 0)
return false;
return result;
// Do not delete empty paragraphs with keepempty set.
if (oldpar.allowEmpty())
return false;
return result;
if (oldpar.empty() || (oldpar.size() == 1 && oldpar.isLineSeparator(0))) {
// Delete old par.
old.recordUndo(max(old.pit() - 1, pit_type(0)),
min(old.pit() + 1, old.lastpit()));
@ -938,10 +933,8 @@ bool Text::deleteEmptyParagraphMechanism(Cursor & cur,
need_anchor_change = true;
}
}
return true;
}
return false;
return true;
}