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Improve floating point scaling in UnitConverter.

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When precision dictates that a number be zero padded, we cannot give sprintf()
a negative precision specifier.  This commit implements manual negative precision
printing of floats, taking into account common rounding errors with floating
point numbers.

Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>
This commit is contained in:
Edward Z. Yang
2008-10-24 12:50:59 -04:00
parent 25fa53c15b
commit 3a2fd0b5db
4 changed files with 38 additions and 3 deletions
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NEWS
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@@ -66,6 +66,8 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
is being used.
- Detect if domxml extension is loaded, and use DirectLEx accordingly.
- Improve handling of big numbers with floating point arithmetic in UnitConverter.
Reported by David Morton.
. Strategy_MakeWellFormed now operates in-place, saving memory and allowing
for more interesting filter-backtracking
. New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind