package com.jclark.xsl.tr;

import com.jclark.xsl.om.*;
import com.jclark.xsl.expr.NumberExpr;
import com.jclark.xsl.conv.NumberListFormat;

class ExprNumberAction implements Action {
  private NumberExpr expr;
  private NumberListFormatTemplate formatTemplate;

  ExprNumberAction(NumberExpr expr, NumberListFormatTemplate formatTemplate) {
    this.expr = expr;
    this.formatTemplate = formatTemplate;
  }

  public void invoke(ProcessContext context, Node node, Result result) throws XSLException {
    NumberListFormat format = formatTemplate.instantiate(context, node);
    result.characters(format.getPrefix(0));
    result.characters(format.formatNumber(0,
					  Math.round((float)expr.eval(node, context))));
    result.characters(format.getSuffix());
  }
}