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PORegex gives error
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  1. PORegex gives error
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    copied!<p>Continuing with the post at <a href="https://stackoverflow.com/questions/705672/regular-expression-to-allow-a-set-of-characters-and-disallow-others/705990#705990">Regular expression to allow a set of characters and disallow others</a></p> <p>Does anybody know why the below would occur?</p> <p>I get the below error when I create a regular expression as:</p> <pre><code>[^@*–’”“\r\nœçsÇSgGšcrŠRNEŽDTCnežuUIti—¿„”]+ </code></pre> <p>and enter any of these restricted characters in the input field</p> <pre><code>java.lang.ArrayIndexOutOfBoundsException at org.apache.regexp.RECompiler$RERange.delete(RECompiler.java:1326) at org.apache.regexp.RECompiler$RERange.remove(RECompiler.java:1417) at org.apache.regexp.RECompiler$RERange.include(RECompiler.java:1459) at org.apache.regexp.RECompiler$RERange.include(RECompiler.java:1470) at org.apache.regexp.RECompiler.characterClass(RECompiler.java:699) at org.apache.regexp.RECompiler.terminal(RECompiler.java:863) at org.apache.regexp.RECompiler.closure(RECompiler.java:942) at org.apache.regexp.RECompiler.branch(RECompiler.java:1151) at org.apache.regexp.RECompiler.expr(RECompiler.java:1203) at org.apache.regexp.RECompiler.compile(RECompiler.java:1281) at org.apache.regexp.RE.(RE.java:495) at org.apache.regexp.RE.(RE.java:480) </code></pre> <p>but this expression works perfectly fine</p> <pre><code>[^@*–’”“\r\nœçsÇSgGšcrŠRN]+ </code></pre> <p>Also,</p> <pre><code>[^@*–’”“\r\nœçsÇSgGšcrŠR„”]+ </code></pre> <p>works but</p> <pre><code>[^@*–’”“\r\nœçsÇSgGšcrŠRNE]+ </code></pre> <p>does not work and gives the above error.</p> <p>Is there a limit to the number of characters that can be disallowed like the way above?</p> <p>Regards, Udit Sud</p>
 

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