Examples of org.olap4j.mdx.ParseRegion

org.olap4j.mdx.ParseRegion

Region of parser source code.

The main purpose of a ParseRegion is to give detailed locations in error messages and warnings from the parsing and validation process.

A region has a start and end line number and column number. A region is a point if the start and end positions are the same.

The line and column number are one-based, because that is what end-users understand.

A region's end-points are inclusive. For example, in the code

SELECT FROM [Sales]

the SELECT token has region [1:1, 1:6].

Regions are immutable. @version $Id: ParseRegion.java 365 2010-11-09 18:44:22Z jhyde $ @author jhyde


        int startLine = line;
        int startColumn = target - lineStart;


        if (right == left) {
            return new ParseRegion(startLine + 1, startColumn + 1);
        }


        target = right - 1;
        if (target > left) --target; // don't know why
        line = -1;
        lineEnd = 0;
        do {
            line++;
            lineStart = lineEnd;
            lineEnd = Integer.MAX_VALUE;
            if (line < lines.size()) {
                lineEnd = lines.get(line);
            }
        } while (lineEnd < target);


        int endLine = line;
        int endColumn = target - lineStart;


        return new ParseRegion(
            startLine + 1, startColumn + 1, endLine + 1, endColumn + 1);
    }

Examples of org.olap4j.mdx.ParseRegion

Related Classes of org.olap4j.mdx.ParseRegion