Examples with RationalExp cbit.vcell.matrix.RationalExp used on opensource projects

Example 16 with RationalExp

use of cbit.vcell.matrix.RationalExp in project vcell by virtualcell.

the class UnitSymbol method parseUnits.

private void parseUnits(String unitString) {
    try {
        String unit = unitString.trim();
        if (!unit.endsWith(";")) {
            unit = unit + ";";
        }
        UnitSymbolParser unitParser;
        unitParser = new UnitSymbolParser(new ByteArrayInputStream(unit.getBytes()));
        rootNode = unitParser.UnitSymbol();
        double numericScale = rootNode.getNumericScale();
        String infixWithoutNumericScale = rootNode.toInfixWithoutNumericScale();
        Expression exp = null;
        RationalExp rationalExp = null;
        try {
            exp = new Expression(infixWithoutNumericScale);
            rationalExp = RationalExpUtils.getRationalExp(exp);
            // Converting rationalExp back to expression since RationalExp represents power (^) of 'x' as multiple 'x's (e.g., x^3 == x.x.x)
            exp = rationalExp.simplifyAsExpression();
            // Converting rationalExp to exp will add parentheses and spaces in the expression.
            // These need to be removed from expression infix string for unitParser to parse expression infix.
            String infix2 = exp.infix_UNITS();
            // remove start "(" and end ")" if they exist
            if (infix2.contains("(") && infix2.contains(")") && infix2.startsWith("(") && infix2.endsWith(")")) {
                // remove start "("
                infix2 = infix2.substring(1);
                // remove last ")"
                infix2 = infix2.substring(0, infix2.length() - 1);
            }
            // replace blank spaces " " with no space ""
            infix2 = infix2.replace(" ", "");
            // add ";" to end of infix string for unitParser
            if (numericScale != 1.0) {
                infix2 = numericScale + " " + infix2;
            }
            infix2 = infix2 + ";";
            unitParser = new UnitSymbolParser(new ByteArrayInputStream(infix2.getBytes()));
            rootNode = unitParser.UnitSymbol();
        } catch (ExpressionException e) {
            e.printStackTrace(System.out);
            System.out.println("Failed to simply unitsymbol '" + rootNode.toInfix() + "'" + e.getMessage());
        } catch (jscl.text.ParseException e) {
            e.printStackTrace(System.out);
            System.out.println("Failed to simply unitsymbol '" + rootNode.toInfix() + "'" + e.getMessage());
        }
    } catch (ParseException e) {
        e.printStackTrace(System.out);
        throw new RuntimeException("Parse Error while parsing expression '" + unitString + "'.\n " + e.getMessage());
    } catch (TokenMgrError e) {
        e.printStackTrace(System.out);
        throw new RuntimeException("Parse Error while parsing expression '" + unitString + "'.\n " + e.getMessage());
    }
}