style & csdbg::style::to_string ( string &  dst ) const

virtual

Set a string with all the style escape sequences.

Parameters

[in]

dst

the destination string

Returns

*this

Exceptions

std::bad_alloc
csdbg::exception

Attention

Initial string contents are erased

Definition at line 260 of file style.cpp.

References csdbg::string::append(), BLINKING, BOLD, CLEAR, csdbg::string::clear(), DIM, HIDDEN, INVERTED, is_attr_enabled(), m_bgcolor, m_fgcolor, UNDERLINED, and unlikely.

Referenced by apply().

{
  dst.clear();

  /* Add the background color, if not translucent */
  if ( unlikely(m_bgcolor != CLEAR) )
    dst.append("\e[48;5;%dm", m_bgcolor);

  /* Add the foreground color */
  dst.append("\e[38;5;%dm", m_fgcolor);

  /* Add the escape sequence for each text formatting attribute */
  if ( unlikely(is_attr_enabled(BOLD)) )
    dst.append("\e[1m");

  if ( unlikely(is_attr_enabled(DIM)) )
    dst.append("\e[2m");

  if ( unlikely(is_attr_enabled(UNDERLINED)) )
    dst.append("\e[4m");

  if ( unlikely(is_attr_enabled(BLINKING)) )
    dst.append("\e[5m");

  if ( unlikely(is_attr_enabled(INVERTED)) )
    dst.append("\e[7m");

  if ( unlikely(is_attr_enabled(HIDDEN)) )
    dst.append("\e[8m");

  return const_cast<style&> (*this);
}

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