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package info.bliki.wiki.template;

import info.bliki.wiki.model.IWikiModel;

import java.util.List;

/**
 * A template parser function for {{lcfirst: ... }} first
 * character to lower case syntax. See Wikipedia -
 * Help:Variable#Formatting
 *
 */
public class LCFirst extends AbstractTemplateFunction {
    public final static ITemplateFunction CONST = new LCFirst();

    @Override
    public String parseFunction(List list, IWikiModel model, char[] src, int beginIndex, int endIndex, boolean isSubst) {
        if (list.size() > 0) {
            String word = isSubst ? list.get(0) : parseTrim(list.get(0), model);
            if (word.length() > 0) {
                return Character.toLowerCase(word.charAt(0)) + word.substring(1);
            }
            return "";
        }
        return null;
    }
}