w3c.css.properties.css3.CssInitialLetter Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of cssvalidator Show documentation
Backend for the W3C CSS Validation Service
There is a newer version: 1.0.8
//
// Author: Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM, Keio, Beihang 2015.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css3;

import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssCheckableValue;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssOperator;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

/**
 * @spec http://www.w3.org/TR/2016/WD-css-inline-3-20160524/#propdef-initial-letter
 */
public class CssInitialLetter extends org.w3c.css.properties.css.CssInitialLetter {

    CssIdent normal = CssIdent.getIdent("normal");

    /**
     * Create a new CssInitialLetter
     */
    public CssInitialLetter() {
        value = initial;
    }

    /**
     * Set the value of the property
     *
     * @param expression The expression for this property
     * @param check      set it to true to check the number of values
     * @throws org.w3c.css.util.InvalidParamException
     *          The expression is incorrect
     */
    public CssInitialLetter(ApplContext ac, CssExpression expression,
                            boolean check) throws InvalidParamException {

        if (check && expression.getCount() > 2) {
            throw new InvalidParamException("unrecognize", ac);
        }

        ArrayList v = new ArrayList<>(2);
        setByUser();
        char op;
        CssValue val;
        boolean got_number = false;

        while (!expression.end()) {
            val = expression.getValue();
            op = expression.getOperator();

            switch (val.getType()) {
                case CssTypes.CSS_NUMBER:
                    if (!got_number) {
                        got_number = true;
                    } else {
                        // the second integer must be an integer
                        CssCheckableValue n = val.getCheckableValue();
                        n.checkInteger(ac, this);
                    }
                    v.add(val);
                    break;
                case CssTypes.CSS_IDENT:
                    // we can have only one ident
                    if (expression.getCount() > 1) {
                        throw new InvalidParamException("value", expression.getValue(),
                                getPropertyName(), ac);
                    }
                    CssIdent id = (CssIdent) val;
                    if (inherit.equals(id)) {
                        value = inherit;
                        break;
                    }
                    if (normal.equals(id)) {
                        value = normal;
                        break;
                    }
                default:
                    throw new InvalidParamException("value", val,
                            getPropertyName(), ac);
            }
            if (op != CssOperator.SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            expression.next();
        }
        if (value != inherit) {
            value = (v.size() == 1) ? v.get(0) : new CssValueList(v);
        }
    }

    public CssInitialLetter(ApplContext ac, CssExpression expression)
            throws InvalidParamException {
        this(ac, expression, false);
    }


}