Ejemplo n.º 1
0
/// HighlightRange - This is the same as the above method, but takes
/// decomposed file locations.
void html::HighlightRange(RewriteBuffer &RB, unsigned B, unsigned E,
                          const char *BufferStart,
                          const char *StartTag, const char *EndTag) {
  // Insert the tag at the absolute start/end of the range.
  RB.InsertTextAfter(B, StartTag);
  RB.InsertTextBefore(E, EndTag);

  // Scan the range to see if there is a \r or \n.  If so, and if the line is
  // not blank, insert tags on that line as well.
  bool HadOpenTag = true;

  unsigned LastNonWhiteSpace = B;
  for (unsigned i = B; i != E; ++i) {
    switch (BufferStart[i]) {
    case '\r':
    case '\n':
      // Okay, we found a newline in the range.  If we have an open tag, we need
      // to insert a close tag at the first non-whitespace before the newline.
      if (HadOpenTag)
        RB.InsertTextBefore(LastNonWhiteSpace+1, EndTag);

      // Instead of inserting an open tag immediately after the newline, we
      // wait until we see a non-whitespace character.  This prevents us from
      // inserting tags around blank lines, and also allows the open tag to
      // be put *after* whitespace on a non-blank line.
      HadOpenTag = false;
      break;
    case '\0':
    case ' ':
    case '\t':
    case '\f':
    case '\v':
      // Ignore whitespace.
      break;

    default:
      // If there is no tag open, do it now.
      if (!HadOpenTag) {
        RB.InsertTextAfter(i, StartTag);
        HadOpenTag = true;
      }

      // Remember this character.
      LastNonWhiteSpace = i;
      break;
    }
  }
}
Ejemplo n.º 2
0
static void AddLineNumber(RewriteBuffer &RB, unsigned LineNo,
                          unsigned B, unsigned E) {
  SmallString<256> Str;
  llvm::raw_svector_ostream OS(Str);

  OS << "<tr><td class=\"num\" id=\"LN"
     << LineNo << "\">"
     << LineNo << "</td><td class=\"line\">";

  if (B == E) { // Handle empty lines.
    OS << " </td></tr>";
    RB.InsertTextBefore(B, OS.str());
  } else {
    RB.InsertTextBefore(B, OS.str());
    RB.InsertTextBefore(E, "</td></tr>");
  }
}
Ejemplo n.º 3
0
static void AddLineNumber(RewriteBuffer &RB, unsigned LineNo,
                          unsigned B, unsigned E) {
  llvm::SmallString<100> Str;
  Str += "<tr><td class=\"num\" id=\"LN";
  Str.append_uint(LineNo);
  Str += "\">";
  Str.append_uint(LineNo);
  Str += "</td><td class=\"line\">";
  
  if (B == E) { // Handle empty lines.
    Str += " </td></tr>";
    RB.InsertTextBefore(B, &Str[0], Str.size());
  } else {
    RB.InsertTextBefore(B, &Str[0], Str.size());
    RB.InsertTextBefore(E, "</td></tr>", strlen("</td></tr>"));
  }
}