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package scruf.parsers;
import java.util.regex.*;
public class Paragraphs implements Parser {
private String paragraph = "<p>\n$0</p>\n";
public String parse(String fileContent) {
/**
* This regex contains two parts seperated by a '|'; the first
* part is regex for a html Heading (See Heading.java) and the
* second part is the regex for a paragraph. For an input, if
* the first part of the regex is matched, then it is
* necessarily a Heading, so, we ignore it; but if the second
* part of the regex is matched for an input, then it is a
* paragraph, so, we put the necessary tags in place.
*/
Pattern pattern = Pattern.compile("(^.+$\\n)+",Pattern.MULTILINE);
/**
* This htmlTagPattern has a regex to deduct a html tag.
*/
Pattern htmlTagPattern = Pattern.compile("^\\<.+?\\>\\n");
Matcher matcher = pattern.matcher(fileContent);
Matcher htmlTag;
StringBuffer sbuffer = new StringBuffer();
while(matcher.find()) {
/**
* give the paragraph that is identified htmlTagPattern
* and see whether the "paragraph" that is actually
* deducted is some other html block like <h1> (heading)
* or <blockquote>, etcetera. "matcher.find()" has
* actually found a html block then we don't need to do
* the conversion.
*/
htmlTag = htmlTagPattern.matcher(matcher.group());
/**
* if "matcher.find()" _has not_ deducted a html block,
* then we do the conversion.
*/
if(!htmlTag.find()) {
matcher.appendReplacement(sbuffer,paragraph);
}else {
System.out.println("MATCH$"+matcher.group()+" MATCH$$");
}
}
matcher.appendTail(sbuffer);
return sbuffer.toString();
}
}
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