package lib;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TextLayoutHelper {
/**
* Modifies the given string such that its lenght matches the given length.
* If the string is too small, whitespace is appended on both sides equally.
* Then, if the string is too large, it is cut off on the right.
* @param s the string
* @param lenght the target length
* @return the modified string
*/
public static String strToLen( String s, int lenght )
{
while( s.length() < lenght )
{
s = " " + s + " ";
}
if( s.length() > lenght )
return s.substring( 0, lenght );
return s;
}
private static String[] keywords = { "for", "do", "to", "then", "else", "if", "foreach", "while", "or", "and", "call", "function", "false", "true", "undefined", "with" };
private static String[] delimiter = { "\\+", "\\-", "\\[", "\\]", "\\|", " ", "^", "$", "\\=", "\\,", "\\(", "\\;", "\\.", "\\)" };
private static String getDelimiterRegex()
{
String reg = "(";
for( String d : delimiter )
{
reg += d + "|";
}
reg = reg.substring( 0, reg.length() - 1 ) + ")";
return reg;
}
public static String setupPseudoCodeComment( String s )
{
return ""+s+"";
}
public static String setupPseudoCode( String s, String[] vars )
{
if( s.startsWith( "--" ) )
return setupPseudoCodeComment( s );
String delimiter = getDelimiterRegex();
String ret = "";
String current = s.replaceAll( "&", "&" ).replaceAll( "<", " < ").replaceAll( ">", " > ");
for( String k : keywords )
{
current = current.replaceAll( delimiter + "(" + k + ")" + delimiter, "$1$2$3" );
}
for( String v : vars )
{
current = current.replaceAll( delimiter + "(" + v + ")" + delimiter, "$1$2$3" );
}
current = current.replaceAll( "\\'(.*?)\\'", "'$1'" );
ret += current + "";
return ret;
}
public static String[] getVariables( String s )
{
ArrayList list = new ArrayList<>();
Matcher m = Pattern.compile( "(.*?)" ).matcher( s );
while( m.find())
{
if( !list.contains( s.substring( m.start( 1 ), m.end( 1 ) ) ) )
list.add( s.substring( m.start( 1 ), m.end( 1 ) ) );
}
return list.toArray( new String[ list.size() ] );
}
}