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eXtensible Markup Language (XML) codec that incrementally parses and writes swim-structure values
// Copyright 2015-2019 SWIM.AI inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package swim.xml;
import swim.codec.Diagnostic;
import swim.codec.Input;
import swim.codec.Parser;
import swim.util.Builder;
final class XmlDeclParser extends Parser {
final XmlParser xml;
final Builder attributes;
final Parser nameParser;
final Parser valueParser;
final int step;
XmlDeclParser(XmlParser xml, Builder attributes,
Parser nameParser, Parser valueParser, int step) {
this.xml = xml;
this.attributes = attributes;
this.nameParser = nameParser;
this.valueParser = valueParser;
this.step = step;
}
@Override
public Parser feed(Input input) {
return parse(input, this.xml, this.attributes, this.nameParser, this.valueParser, this.step);
}
static Parser parse(Input input, XmlParser xml, Builder attributes,
Parser nameParser, Parser valueParser, int step) {
int c = 0;
while (step >= 1 && step <= 5) {
if (input.isCont()) {
if (input.head() == "') {
input = input.step();
if (attributes == null) {
return done(xml.xml(xml.attributes()));
} else {
return done(xml.xml(attributes.bind()));
}
} else {
return error(Diagnostic.expected('>', input));
}
} else if (input.isDone()) {
return error(Diagnostic.expected('>', input));
}
}
if (input.isError()) {
return error(input.trap());
}
return new XmlDeclParser(xml, attributes, nameParser, valueParser, step);
}
static Parser parse(Input input, XmlParser xml) {
return parse(input, xml, null, null, null, 1);
}
static Parser parseRest(Input input, XmlParser xml) {
return parse(input, xml, null, null, null, 6);
}
}