Method toPrintString

UnLuac/src/unluac/util/StringUtils.java:5–38

(String s)

public class StringUtils {

  public static String toPrintString(String s) {
    if(s == null) return "null";
    StringBuilder b = new StringBuilder();
    b.append('"');
    for(int i = 0; i < s.length(); i++) {
      char c = s.charAt(i);
      int ci = (int)c;
      if(c == '"') {
        b.append("\\\"");
      } else if(c == '\\') {
        b.append("\\\\");
      } else if(ci >= 32 && ci <= 126) {
        b.append(c);
      } else if(c == '\n') {
        b.append("\\n");
      } else if(c == '\t') {
        b.append("\\t");
      } else if(c == '\r') {
        b.append("\\r");
      } else if(c == '\b') {
        b.append("\\b");
      } else if(c == '\f') {
        b.append("\\f");
      } else if(ci == 11) {
        b.append("\\v");
      } else if(ci == 7) {
        b.append("\\a");
      } else {
        b.append(String.format("\\x%02x", ci));
      }
    }
    b.append('"');
    return b.toString();
  }
  
  public static String fromPrintString(String s) {
    if(s.equals("null")) return null;