Ejemplo n.º 1
0
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public boolean incrementToken() throws java.io.IOException
        public override bool incrementToken()
        {
            if (!input.incrementToken())
            {
                return(false);
            }

            char[] termBuffer = termAtt.buffer();
            int    len        = termAtt.length();

            //TODO: Is this the right behavior or should we return false?  Currently, "  ", returns true, so I think this should
            //also return true
            if (len == 0)
            {
                return(true);
            }
            int start  = 0;
            int end    = 0;
            int endOff = 0;

            // eat the first characters
            for (start = 0; start < len && char.IsWhiteSpace(termBuffer[start]); start++)
            {
            }
            // eat the end characters
            for (end = len; end >= start && char.IsWhiteSpace(termBuffer[end - 1]); end--)
            {
                endOff++;
            }
            if (start > 0 || end < len)
            {
                if (start < end)
                {
                    termAtt.copyBuffer(termBuffer, start, (end - start));
                }
                else
                {
                    termAtt.setEmpty();
                }
                if (updateOffsets && len == offsetAtt.endOffset() - offsetAtt.startOffset())
                {
                    int newStart = offsetAtt.startOffset() + start;
                    int newEnd   = offsetAtt.endOffset() - (start < end ? endOff:0);
                    offsetAtt.setOffset(newStart, newEnd);
                }
            }

            return(true);
        }