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Possible infinite recursion of empty parentheses #2

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Possible infinite recursion of empty parentheses #2

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3 changes: 3 additions & 0 deletions PrimaryExp.java
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,9 @@ static AstNode parsePrimary(ExpParser parser, boolean isInsideParenthesis) throw
if (parser.isEnd()) { // Opening parenthesis can't stay at the end of the string
throw new ExpressionFormatException("Wrong opening parenthesis detected");
}
else if (parser.getLast().equals(OPCODES[1])) { // If next is ")" - exception
throw new ExpressionFormatException("Empty parentheses detected");
}
// Parse subexpression from the top operations
res = LogicalExp.parseLogical(parser, true);
if (!parser.getLast().equals(OPCODES[1])) { // If next is not ")" - exception
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