w3c.css.properties.css3.CssSpeakAs 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
// $Id$
// Author: Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM and Keio University, 2013.
// 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.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

import static org.w3c.css.values.CssOperator.SPACE;

/**
 * @spec http://www.w3.org/TR/2012/CR-css3-speech-20120320/#speak-as
 */
public class CssSpeakAs extends org.w3c.css.properties.css.CssSpeakAs {

    public static final CssIdent normal, spell_out, digits;
    public static final CssIdent[] punctuation_values;

    static {
        normal = CssIdent.getIdent("normal");
        spell_out = CssIdent.getIdent("spell-out");
        digits = CssIdent.getIdent("digits");

        String[] _punctuation_values = {"literal-punctuation", "no-punctuation"};

        punctuation_values = new CssIdent[_punctuation_values.length];
        int i = 0;
        for (String s : _punctuation_values) {
            punctuation_values[i++] = CssIdent.getIdent(s);
        }
    }

    static CssIdent getPunctuation(CssIdent ident) {
        for (CssIdent id : punctuation_values) {
            if (id.equals(ident)) {
                return id;
            }
        }
        return null;
    }

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

    /**
     * Creates a new CssSpeakAs
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssSpeakAs(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        if (check && expression.getCount() > 3) {
            throw new InvalidParamException("unrecognize", ac);
        }
        setByUser();

        CssValue val;
        char op;
        CssValue spellVal = null;
        CssValue digitVal = null;
        CssValue punctVal = null;

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

            switch (val.getType()) {
                case CssTypes.CSS_IDENT:
                    CssIdent id = (CssIdent) val;
                    if (inherit.equals(id)) {
                        if (expression.getCount() > 1) {
                            throw new InvalidParamException("unrecognize", ac);
                        }
                        value = inherit;
                        break;
                    }
                    if (normal.equals(id)) {
                        if (expression.getCount() > 1) {
                            throw new InvalidParamException("unrecognize", ac);
                        }
                        value = normal;
                        break;
                    }
                    if (spellVal == null) {
                        if (spell_out.equals(id)) {
                            spellVal = id;
                            value = id;
                            break;
                        }
                    }
                    if (digitVal == null) {
                        if (digits.equals(id)) {
                            digitVal = digits;
                            value = id;
                            break;
                        }
                    }
                    if (punctVal == null) {
                        punctVal = getPunctuation(id);
                        if (punctVal != null) {
                            value = id;
                            break;
                        }
                    }
                    // let it fail if unrecognized
                default:
                    throw new InvalidParamException("value", val,
                            getPropertyName(), ac);
            }
            if (op != SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            expression.next();
        }
        // now construct the value...
        if (expression.getCount() > 1) {
            ArrayList v = new ArrayList(4);
            if (spellVal != null) {
                v.add(spellVal);
            }
            if (digitVal != null) {
                v.add(digitVal);
            }
            if (punctVal != null) {
                v.add(punctVal);
            }
            value = new CssValueList(v);
        }
    }

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