string & csdbg::string::trim ( i32  which = 0 )

virtual

Remove leading and/or trailing whitespace characters.

Parameters

[in]

which

<0 to trim the leading, >0 for the trailing and 0 for both (default)

Returns

*this

Definition at line 529 of file string.cpp.

References clear(), likely, m_data, m_length, and unlikely.

Referenced by csdbg::dictionary::load_file().

{
  if ( likely(which <= 0) ) {
    /* Estimate the number of leading whitespace characters */
    u32 i;
    for (i = 0; likely(i < m_length); i++)
      if ( likely(!isspace(m_data[i])) )
        break;

    /* Remove them */
    if ( unlikely(i > 0 && i < m_length) ) {
      strcpy(m_data, m_data + i);
      m_length -= i;
    }

    /* If the string is filled with whitespace characters */
    else if ( unlikely(i == m_length) )
      return clear();
  }

  if ( likely(which >= 0) ) {
    /* Estimate the number of trailing whitespace characters */
    i32 i;
    for (i = m_length - 1; likely(i >= 0); i--)
      if ( likely(!isspace(m_data[i])) )
        break;

    m_data[++i] = '\0';
    m_length = i;
  }

  return *this;
}

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