/*
 
* Copyright (C) 2015 René Jeschke <rene_jeschke@yahoo.de>
 
*
 
* 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 com.github.rjeschke.txtmark.cmd;

import java.io.IOException;
import java.util.List;

import com.github.rjeschke.txtmark.BlockEmitter;

final class CodeBlockEmitter implements BlockEmitter
{
    
private final String encoding;
    
private final String program;

    
public CodeBlockEmitter(final String encoding, final String program)
    
{
        
this.encoding = encoding;
        
this.program = program;
    
}

    
private static void append(final StringBuilder out, final List<String> lines)
    
{
        
out.append("<pre class=\"pre_no_hl\">");
        
for (final String l : lines)
        
{
            
HlUtils.escapedAdd(out, l);
            
out.append('\n');
        
}
        
out.append("</pre>");
    
}

    
@Override
    
public void emitBlock(final StringBuilder out, final List<String> lines, final String meta)
    
{
        
if (meta == null || meta.isEmpty())
        
{
            
append(out, lines);
        
}
        
else
        
{
            
try
            
{
                
out.append(HlUtils.highlight(lines, meta, this.program, this.encoding));
                
out.append('\n');
            
}
            
catch (final IOException e)
            
{
                
// Ignore or do something, still, pump out the lines
                
append(out, lines);
            
}
        
}
    
}
}