protected boolean isTemplateLine(Line line) {
ProcessedRichString string = line.getRichString();
if (string.getLines().size() == 1) {
return false;
}
boolean firstOrLast = string.getLines().get(0) == line;
if (!firstOrLast) {
if (string.getLines().get(string.getLines().size() - 1) == line) {
if (!(line.getParts().get(line.getParts().size() - 1) instanceof LineBreak))
firstOrLast = true;
}
}
boolean onlyLiterals = true;
for (LinePart part : line.getParts()) {
if (part instanceof PrintedExpression) return false;
if (part instanceof Literal) {
Literal literal = (Literal) part;
if (literal instanceof LineBreak) {
if (firstOrLast) return onlyLiterals;
return !onlyLiterals;
}
if (!(new TextLine(
literal.getLiteral().getValue(), literal.getOffset(), literal.getLength(), 0)
.containsOnlyWhitespace())) return false;
} else if (firstOrLast) {
return false;
} else {
onlyLiterals = false;
}
}
if (firstOrLast) return onlyLiterals;
return !onlyLiterals;
}
@Override
public Boolean caseLineBreak(LineBreak object) {
Line line = object.getLine();
if (isTemplateLine(line)) {
announceTemplateLinebreak(object);
ProcessedRichString string = line.getRichString();
boolean firstOrLast =
string.getLines().get(0) == line
|| string.getLines().get(string.getLines().size() - 1) == line;
if (!firstOrLast) popIndentation();
} else {
announceSemanticLinebreak(object);
popIndentation();
}
computeNextPart(object);
return Boolean.TRUE;
}
protected void computeNextPart(LinePart part) {
Line line = part.getLine();
int index = line.getParts().indexOf(part);
if (index == line.getParts().size() - 1) {
ProcessedRichString richString = line.getRichString();
index = richString.getLines().indexOf(line);
if (index == richString.getLines().size() - 1) nextPart = null;
else {
int i = index + 1;
nextPart = null;
line = richString.getLines().get(i);
while (line.getParts().isEmpty() && i < richString.getLines().size()) {
line = richString.getLines().get(i);
}
if (!line.getParts().isEmpty()) {
nextPart = line.getParts().get(0);
}
}
} else {
nextPart = line.getParts().get(index + 1);
}
}
@Override
public Boolean caseLiteral(Literal object) {
if (announced == null || announced != object.getLiteral()) {
acceptor.announceNextLiteral(object.getLiteral());
announced = object.getLiteral();
}
Line line = object.getLine();
TextLine textLine =
new TextLine(
Strings.emptyIfNull(object.getLiteral().getValue()),
object.getOffset(),
object.getLength(),
0);
CharSequence ws = textLine.getLeadingWhiteSpace();
ProcessedRichString string = line.getRichString();
boolean firstOrLast =
string.getLines().get(0) == line
|| string.getLines().get(string.getLines().size() - 1) == line;
if (isTemplateLine(line)) {
if (line.getParts().get(0) == object) {
if (!firstOrLast) {
boolean followedByOpening = false;
if (line.getParts().size() >= 2) {
LinePart next = line.getParts().get(1);
if (next instanceof ForLoopStart || next instanceof IfConditionStart) {
followedByOpening = true;
}
}
if (!followedByOpening) {
pushSemanticIndentation(indentationHandler.getTotalIndentation());
} else {
pushSemanticIndentation(ws);
}
}
}
announceTemplateText(textLine, object.getLiteral());
} else {
if (skipCount <= 1) {
firstOrLast = false;
if (skipCount == 0 && line.getParts().get(0) == object) {
if (textLine.length() == ws.length()) {
for (int i = 1; i < line.getParts().size(); i++) {
if (line.getParts().get(i) instanceof Literal
&& !(line.getParts().get(i) instanceof LineBreak)) {
Literal nextLiteralInSameLine = (Literal) line.getParts().get(i);
TextLine nextLiteralLine =
new TextLine(
nextLiteralInSameLine.getLiteral().getValue(),
nextLiteralInSameLine.getOffset(),
nextLiteralInSameLine.getLength(),
0);
CharSequence nextLeading = nextLiteralLine.getLeadingWhiteSpace();
if (nextLeading.length() > 0) {
ws = ws.toString() + nextLeading;
}
skipCount++;
if (nextLeading.length() != nextLiteralLine.length()) {
break;
}
} else {
break;
}
}
if (skipCount != 0) {
pushSemanticIndentation(ws);
} else {
pushSemanticIndentation(ws);
announceIndentation();
announceSemanticText(
textLine.subSequence(ws.length(), textLine.length()), object.getLiteral());
}
} else {
pushSemanticIndentation(ws);
announceIndentation();
announceSemanticText(
textLine.subSequence(ws.length(), textLine.length()), object.getLiteral());
}
} else {
if (skipCount == 1) {
skipCount--;
announceIndentation();
announceSemanticText(
textLine.subSequence(ws.length(), textLine.length()), object.getLiteral());
} else {
announceSemanticText(textLine, object.getLiteral());
}
}
} else {
skipCount--;
}
}
if (!firstOrLast && line.getParts().get(line.getParts().size() - 1) == object) {
popIndentation();
}
computeNextPart(object);
return Boolean.TRUE;
}