Simple API

[James Clark]

At 09:52 25/03/97 GMT, Peter Murray-Rust wrote:

>My own suggestion is that we should produce a ReallySimple API independently
>of the grove approach.

It's perfectly possible to have a "ReallySimple API" that is based on
groves, for example:

public interface Builder {
    SgmlDocument build(String url);
}

public interface Node {
    public abstract Node getParent();
    public abstract NodeList getChildren();
}

public interface NodeList {
    public abstract Node getItem(int i);
    public abstract int getCount();
}

public interface NamedNodeList {
    public abstract Node getItem(String name);
    public abstract NodeList toNodeList();
}

public interface SgmlDocument extends Node {
    public abstract NodeList getProlog();
    public abstract NodeList getEpilog();
    public abstract Element getDocumentElement();
    public abstract NamedNodeList getElements();
    public abstract NamedNodeList getEntities();
}

public interface Element extends Node {
    public abstract String getId();
    public abstract String getGi();
    public abstract NodeList getContent();
    public abstract NamedNodeList getAttributes();
    public abstract boolean getMustOmitEndTag();
}

public interface DataChar extends Node {
    public abstract char getChar();
}

public interface Pi extends Node {
    public abstract String getSystemData();
}

public interface ExternalData extends Node {
    public abstract Entity getEntity();
}

public interface AttributeAssignment extends Node {
    public abstract NodeList getValue();
    public abstract boolean getImplied();
    public abstract String getName();
}

public interface AttributeValueToken extends Node {
    public abstract String getToken();
    public abstract Element getReferent();
    public abstract Entity getEntity();
    public abstract Notation getNotation();
}

public interface Entity extends Node {
    public abstract String getName();
    public abstract ExternalId getExternalId();
    public abstract String getText();
    public abstract Notation getNotation();
}

public interface ExternalId extends Node {
    public abstract String getSystemId();
    public abstract String getPublicId();
}

public interface Notation extends Node {
    public abstract String getName();
    public abstract ExternalId getExternalId();
}

Is that really so complicated?

James




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