public static string ApplyRTLfix(string line, int maxCharacters, bool ignoreNumbers) { if (string.IsNullOrEmpty(line)) { return(line); } // Fix !, ? and . signs not set correctly char firstC = line[0]; if (firstC == '!' || firstC == '.' || firstC == '?') { line = line.Substring(1) + firstC; } int tagStart = -1, tagEnd = 0; // Find all Tags (and Numbers if ignoreNumbers is true) int tagBase = 40000; tagEnd = 0; var tags = new List <string>(); while (I2Utils.FindNextTag(line, tagEnd, out tagStart, out tagEnd)) { string tag = "@@" + (char)(tagBase + tags.Count) + "@@"; tags.Add(line.Substring(tagStart, tagEnd - tagStart + 1)); line = line.Substring(0, tagStart) + tag + line.Substring(tagEnd + 1); tagEnd = tagStart + 5; } // Split into lines and fix each line line = line.Replace("\r\n", "\n"); line = I2Utils.SplitLine(line, maxCharacters); line = RTLFixer.Fix(line, true, !ignoreNumbers); // Restore all tags for (int i = 0; i < tags.Count; i++) { var len = line.Length; for (int j = 0; j < len; ++j) { if (line[j] == '@' && line[j + 1] == '@' && line[j + 2] >= tagBase && line[j + 3] == '@' && line[j + 4] == '@') { int idx = line[j + 2] - tagBase; if (idx % 2 == 0) { idx++; } else { idx--; } if (idx >= tags.Count) { idx = tags.Count - 1; } line = line.Substring(0, j) + tags[idx] + line.Substring(j + 5); break; } } } return(line); }