function _mailsystem_indent_mail_line in Mail System 7.3

Same name and namespace in other branches

1. 8.2 html_to_text.inc \_mailsystem_indent_mail_line()
2. 6.2 html_to_text.inc \_mailsystem_indent_mail_line()
3. 7.2 html_to_text.inc \_mailsystem_indent_mail_line()

Helper function for array_walk in drupal_wrap_mail().

If $values['pad'] is non-empty, $values['indent'] will be added at the start of each line, and $values['pad'] at the end, repeating the last character of $values['pad'] until the line length equals $values['max'].

If $values['pad'] is empty, $values['indent'] will be added at the start of the first line, and $values['clean'] at the start of subsequent lines.

If $values['stuff'] is true, then an extra space character will be added at the start of any line beginning with a space, a '>', or the word 'From'.

See also

http://www.ietf.org/rfc/rfc3676.txt

1 string reference to '_mailsystem_indent_mail_line'

mailsystem_wrap_mail in ./html_to_text.inc

Perform format=flowed soft wrapping for mail (RFC 3676).

File

./html_to_text.inc, line 721

Copy of drupal_html_to_text improvements from issue #299138.

Code

function _mailsystem_indent_mail_line(&$line, $key, $values) {
  if ($line == '') {
    return;
  }
  if ($values['pad']) {
    $line = $values['indent'] . $line;
    $count = $values['max'] - drupal_strlen($line) - drupal_strlen($values['pad']);
    if ($count >= 0) {
      $line .= $values['pad'] . str_repeat($values['pad_repeat'], $count);
    }
  }
  else {
    $line = $values[$key === 0 ? 'indent' : 'clean'] . $line;
  }
  if ($values['stuff']) {

    // chr(160) is the non-breaking space character.
    $line = preg_replace('/^(' . chr(160) . '| |>|From)/', ' $1', $line);
  }
}