/**
* Scan the next tokens (between braces) and put the value (as text) on the log. In fact only the
* source is informed that there is something to write out. This is done using the observer
* pattern.
*
* @see de.dante.extex.interpreter.type.Code#execute( de.dante.extex.interpreter.Flags,
* de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource,
* de.dante.extex.typesetter.Typesetter)
*/
public void execute(
final Flags prefix,
final Context context,
final TokenSource source,
final Typesetter typesetter)
throws InterpreterException {
boolean log = false;
if (source.getKeyword(context, "to")) {
if (source.getKeyword(context, "log")) {
log = true;
} else {
throw new HelpingException(getLocalizer(), "logMissing");
}
}
Tokens toks = source.scanUnprotectedTokens(context, true, false, getName());
if (log) {
logger.fine(" " + toks.toText());
} else {
logger.severe(" " + toks.toText());
}
}
/**
* @see de.dante.extex.interpreter.type.Code#execute( de.dante.extex.interpreter.Flags,
* de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource,
* de.dante.extex.typesetter.Typesetter)
*/
public void execute(
final Flags prefix,
final Context context,
final TokenSource source,
final Typesetter typesetter)
throws InterpreterException {
CodeToken cs = source.getControlSequence(context);
Code code = context.getCode(cs);
if (code == null) {
throw new UndefinedControlSequenceException(printable(context, cs));
}
boolean horizontal;
Node node = null;
if (code instanceof Boxable) {
Box b = ((Boxable) code).getBox(context, source, typesetter);
node = b.getNodes();
horizontal = b.isHbox();
} else if (code instanceof RuleConvertible) {
node = ((RuleConvertible) code).getRule(context, source, typesetter);
horizontal = ((RuleNode) node).isHorizontal();
} else {
throw new HelpingException(getLocalizer(), "TTP.BoxExpected");
}
CodeToken vskip = source.getControlSequence(context);
code = context.getCode(vskip);
if (code == null) {
throw new UndefinedControlSequenceException( //
context.esc(vskip.getName()));
}
FixedGlue skip;
if (horizontal) {
if (!(code instanceof HorizontalSkip)) {
throw new HelpingException(getLocalizer(), "TTP.BadGlueAfterLeaders");
}
skip = ((HorizontalSkip) code).getGlue(context, source, typesetter);
} else {
if (!(code instanceof VerticalSkip)) {
throw new HelpingException(getLocalizer(), "TTP.BadGlueAfterLeaders");
}
skip = ((VerticalSkip) code).getGlue(context, source, typesetter);
}
try {
typesetter.add(new CenteredLeadersNode(node, skip, horizontal));
} catch (TypesetterException e) {
throw new InterpreterException(e);
} catch (ConfigurationException e) {
throw new InterpreterException(e);
}
}
/**
* @see de.dante.extex.interpreter.type.Code#execute( de.dante.extex.interpreter.Flags,
* de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource,
* de.dante.extex.typesetter.Typesetter)
*/
public void execute(
final Flags prefix,
final Context context,
final TokenSource source,
final Typesetter typesetter)
throws InterpreterException {
Mode mode = typesetter.getMode();
if (!mode.isHmode()) {
throw new CantUseInException(printableControlSequence(context), mode.toString());
}
Flags flags = prefix.copy();
prefix.clear();
Box b =
new Box(
context, source, typesetter, false, null, GroupType.VBOX_GROUP, source.getLastToken());
try {
typesetter.add(new AdjustNode(b.getNodes()));
} catch (TypesetterException e) {
throw new InterpreterException(e);
} catch (ConfigurationException e) {
throw new InterpreterException(e);
}
prefix.set(flags);
}
/**
* @see de.dante.extex.interpreter.type.Code#execute( de.dante.extex.interpreter.Flags,
* de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource,
* de.dante.extex.typesetter.Typesetter)
*/
public void execute(
final Flags prefix,
final Context context,
final TokenSource source,
final Typesetter typesetter)
throws InterpreterException {
Token t = source.getToken(context);
if (t == null) {
throw new EofException(printableControlSequence(context));
}
Token token = source.getToken(context);
if (token == null) {
throw new EofException(printableControlSequence(context));
}
source.execute(token, context, typesetter);
source.push(t);
}
/**
* @see de.dante.extex.interpreter.primitives.conditional.AbstractIf#conditional(
* de.dante.extex.interpreter.context.Context, de.dante.extex.interpreter.TokenSource,
* de.dante.extex.typesetter.Typesetter)
*/
protected boolean conditional(
final Context context, final TokenSource source, final Typesetter typesetter)
throws InterpreterException {
long value = ScaledNumber.parse(context, source, typesetter);
Token rel = source.getToken(context);
if (rel == null) {
throw new EofException(printableControlSequence(context));
}
if (rel.getCatcode() == Catcode.OTHER) {
switch (rel.getChar().getCodePoint()) {
case '<':
return (value < ScaledNumber.parse(context, source, typesetter));
case '=':
return (value == ScaledNumber.parse(context, source, typesetter));
case '>':
return (value > ScaledNumber.parse(context, source, typesetter));
default:
// fall-through
}
}
throw new HelpingException(getLocalizer(), "IllegalOp");
}