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POHow to remove unbalanced/unpartnered double quotes (in Java)
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  1. POHow to remove unbalanced/unpartnered double quotes (in Java)
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    copied!<p>I thought to share this relatively smart problem with everyone here. I am trying to remove unbalanced/unpaired double-quotes from a string.</p> <p>My work is in progress, I might be close to a solution. But, I didn't get a working solution yet. <strong>I am not able to delete the unpaired/unpartnered double-quotes from the string.</strong></p> <p><strong>Example Input</strong></p> <pre><code>string1=injunct! alter ego." string2=successor "alter ego" single employer" "proceeding "citation assets" </code></pre> <p><strong>Output Should be</strong></p> <pre><code>string1=injunct! alter ego. string2=successor "alter ego" single employer proceeding "citation assets" </code></pre> <p>This problem sound similar to <a href="https://stackoverflow.com/questions/9898455/using-java-remove-unbalanced-unpartnered-paranthesis">Using Java remove unbalanced/unpartnered parenthesis</a></p> <p>Here is my code so far(it doesn't delete all the unpaird double-quotes)</p> <pre><code>private String removeUnattachedDoubleQuotes(String stringWithDoubleQuotes) { String firstPass = ""; String openingQuotePattern = "\\\"[a-z0-9\\p{Punct}]"; String closingQuotePattern = "[a-z0-9\\p{Punct}]\\\""; int doubleQuoteLevel = 0; for (int i = 0; i &lt; stringWithDoubleQuotes.length() - 3; i++) { String c = stringWithDoubleQuotes.substring(i, i + 2); if (c.matches(openingQuotePattern)) { doubleQuoteLevel++; firstPass += c; } else if (c.matches(closingQuotePattern)) { if (doubleQuoteLevel &gt; 0) { doubleQuoteLevel--; firstPass += c; } } else { firstPass += c; } } String secondPass = ""; doubleQuoteLevel = 0; for (int i = firstPass.length() - 1; i &gt;= 0; i--) { String c = stringWithDoubleQuotes.substring(i, i + 2); if (c.matches(closingQuotePattern)) { doubleQuoteLevel++; secondPass = c + secondPass; } else if (c.matches(openingQuotePattern)) { if (doubleQuoteLevel &gt; 0) { doubleQuoteLevel--; secondPass = c + secondPass; } } else { secondPass = c + secondPass; } } String result = secondPass; return result; } </code></pre>
 

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