com.redhat.ceylon.common.tools.help.PlainVisitor Maven / Gradle / Ivy
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* Copyright Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the authors tag. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*
* This particular file is subject to the "Classpath" exception as provided in the
* LICENSE file that accompanied this code.
*
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License,
* along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package com.redhat.ceylon.common.tools.help;
import org.tautua.markdownpapers.ast.Node;
import com.redhat.ceylon.common.tool.ArgumentModel;
import com.redhat.ceylon.common.tool.OptionModel;
import com.redhat.ceylon.common.tool.OptionModel.ArgumentType;
import com.redhat.ceylon.common.tools.help.model.DescribedSection;
import com.redhat.ceylon.common.tools.help.model.Doc;
import com.redhat.ceylon.common.tools.help.model.Option;
import com.redhat.ceylon.common.tools.help.model.OptionsSection;
import com.redhat.ceylon.common.tools.help.model.SubtoolVisitor;
import com.redhat.ceylon.common.tools.help.model.SummarySection;
import com.redhat.ceylon.common.tools.help.model.SynopsesSection;
import com.redhat.ceylon.common.tools.help.model.Synopsis;
import com.redhat.ceylon.common.tools.help.model.Visitor;
import com.redhat.ceylon.common.tool.WordWrap;
public class PlainVisitor implements Visitor {
private int numOptions;
protected final WordWrap out;
protected String ceylonName;
boolean hadFirstArgument = false;
private boolean hadOptions;
private boolean suboptions;
private boolean hasSubTools;
private boolean skipInvocation;
private boolean firstSynopsis;
public PlainVisitor(WordWrap wrap) {
super();
this.out = wrap;
}
private void markdown(Node doc) {
PlaintextMarkdownVisitor markdownVisitor = new PlaintextMarkdownVisitor(out);
doc.accept(markdownVisitor);
}
@Override
public void start(Doc doc) {
ceylonName = doc.getInvocation();
// Make sure this is initialized even when startSynopses() never gets called
hasSubTools = doc.getSynopses().getSynopses().size() > 1;
firstSynopsis = true;
}
@Override
public void end(Doc doc) {
out.flush();
}
private String multiplicity(ArgumentModel argument, String name) {
name = "<" + name + ">";
if (argument.getMultiplicity().isMultivalued()) {
name += "...";
}
return name;
}
@Override
public void startSynopsis(Synopsis synopsis) {
int indent = out.getIndentFirstLine();
String invocation = synopsis.getInvocation();
out.setIndentRestLines(indent + invocation.length() + 1);
if (!hasSubTools || firstSynopsis) {
out.append(invocation);
} else {
out.append("*");
}
skipInvocation = hasSubTools && !firstSynopsis;
hadFirstArgument = false;
hadOptions = false;
}
@Override
public void endSynopsis(Synopsis synopsis) {
out.newline();
if (hasSubTools) {
out.newline();
}
}
@Override
public void visitSynopsisArgument(ArgumentModel argument) {
if (skipInvocation) {
return;
}
if (hadOptions && !hadFirstArgument) {
out.append(" [--]");
hadFirstArgument = true;
}
out.append(" ");
String name = argument.getName();
if (!argument.getMultiplicity().isRequired()) {
out.append("[");
}
out.append("<" + name);
if (argument.getMultiplicity().isMultivalued()) {
out.append("...");
}
out.append(">");
if (!argument.getMultiplicity().isRequired()) {
out.append("]");
}
}
@Override
public void visitSynopsisSubtool(SubtoolVisitor.ToolModelAndSubtoolModel option) {
String name = option.getModel().getName();
if (hasSubTools) {
if (firstSynopsis) {
out.append(" ");
out.append(CeylonHelpToolMessages.msg("synopsis.subtool.commands"));
out.newline();
out.newline();
out.append(CeylonHelpToolMessages.msg("synopsis.subtool.list"));
out.newline();
out.newline();
out.append("*");
}
out.append(" ");
} else {
out.append(" ");
}
out.append(name);
firstSynopsis = false;
skipInvocation = false;
}
@Override
public void visitSynopsisOption(OptionModel option) {
if (skipInvocation) {
return;
}
hadOptions = true;
out.append(" ");
final ArgumentModel argument = option.getArgument();
if (!argument.getMultiplicity().isRequired()) {
out.append("[");
}
if (option.getLongName() != null) {
out.append("--" + option.getLongName());
if (option.getArgumentType() == ArgumentType.REQUIRED) {
out.append("=");
out.append(multiplicity(argument, argument.getName()));
} else if (option.getArgumentType() == ArgumentType.OPTIONAL) {
out.append("[=");
out.append(multiplicity(argument, argument.getName()));
out.append("]");
}
} else {
out.append("-" + option.getShortName());
if (option.getArgumentType() == ArgumentType.REQUIRED) {
out.append(" ");
out.append(multiplicity(argument, argument.getName()));
}
}
if (!argument.getMultiplicity().isRequired()) {
out.append("]");
}
}
@Override
public void startSynopses(SynopsesSection synopsesSection) {
out.append(synopsesSection.getTitle().toUpperCase()).newline().newline();
out.setIndent(8);
hasSubTools = synopsesSection.getSynopses().size() > 1;
firstSynopsis = true;
}
@Override
public void endSynopses(SynopsesSection synopsesSection) {
out.setIndent(0);
out.newline();
out.newline();
}
@Override
public void startOptions(OptionsSection optionsSection) {
if (suboptions) {
out.setIndent(3);
}
markdown(optionsSection.getTitle());
out.setIndent(8);
suboptions = true;
}
@Override
public void visitOption(Option option) {
String shortName = option.getShortName();
String longName = option.getLongName();
String argumentName = option.getArgumentName();
ArgumentType argumentType = option.getOption().getArgumentType();
numOptions++;
out.append(longName);
if (argumentType == ArgumentType.OPTIONAL) {
out.append("[");
}
if (argumentType != ArgumentType.BOOLEAN) {
out.append("=<" + argumentName + ">");
}
if (argumentType == ArgumentType.OPTIONAL) {
out.append("]");
}
if (shortName != null) {
out.append(", ");
out.append(shortName);
if (argumentType == ArgumentType.REQUIRED) {
out.append(" ");
out.append("<" + argumentName + ">");
}
}
out.setIndent(12);
out.newline();
markdown(option.getDescription());
out.newline();
out.setIndent(8);
}
@Override
public void endOptions(OptionsSection optionsSection) {
if(numOptions == 0) {
out.append(ceylonName+" has no options").newline();
}
out.setIndent(0);
out.newline();
}
@Override
public void visitAdditionalSection(DescribedSection describedSection) {
describedSection(describedSection);
}
private void describedSection(DescribedSection describedSection) {
markdown(describedSection.getTitle());
markdown(describedSection.getDescription());
for (DescribedSection subsection : describedSection.getSubsections()) {
describedSection(subsection);
}
out.setIndent(0);
out.newline();
}
@Override
public void visitSummary(SummarySection summarySection) {
markdown(summarySection.getTitle());
markdown(Markdown.markdown("`" + ceylonName + "` - " + summarySection.getSummary()));
out.setIndent(0);
out.newline();
}
@Override
public void visitDescription(DescribedSection descriptionSection) {
describedSection(descriptionSection);
}
}
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