Juan Pablo Santos RodrÃguez created LANG-1016:
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Summary: NumberUtils#isParseable method(s)
Key: LANG-1016
URL: https://issues.apache.org/jira/browse/LANG-1016
Project: Commons Lang
Issue Type: Wish
Components: lang.math.*
Reporter: Juan Pablo Santos RodrÃguez
(for background see
[LANG-997|https://issues.apache.org/jira/browse/LANG-997?focusedCommentId=13991193&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13991193])
It would be nice to have an {{isParseable}} method (or whatever it may be
called), to be able to identify valid (=parseable) Numbers, something along the
lines {{toDouble(String)}} / {{toLong(String)}} etc., but returning {{true}} /
{{false}} while avoiding at the same time the
{{try/catch(NumberFormatException)}} of those methods.
This method would be similar to {{isNumber}}, but it should yield {{true}} for
invalid octals like "018" which are parseable as Numbers. The point of this
method is to identify "human" (neither hex nor octal, but should handle decimal
points) numbers stored as Strings,
We are using NumberUtils#isNumber to identify valid (parseable, human) numbers,
but as of 3.3, this method also handles octal numbers, so, f.ex., 018, which
was recognized as a valid number, isn't recognized anymore as one.
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