Module: Mail::Constants

Included in:: Encodings

Defined in:: lib/mail/constants.rb

Constant Summary collapse

LAX_CRLF =

/\r?\n/

WSP =

/[#{white_space}]/

FWS =

/#{LAX_CRLF}#{WSP}*/

UNFOLD_WS =

/#{LAX_CRLF}(#{WSP})/m

TEXT = + obs-text

/[#{text}]/

FIELD_NAME =

/[#{field_name}]+/

FIELD_PREFIX =

/\A(#{FIELD_NAME})/

FIELD_BODY =

/.+/m

FIELD_LINE =

/^[#{field_name}]+:\s*.+$/

FIELD_SPLIT =

/^(#{FIELD_NAME})\s*:\s*(#{FIELD_BODY})?$/

HEADER_LINE =

/^([#{field_name}]+:\s*.+)$/

HEADER_SPLIT =

/#{LAX_CRLF}(?!#{WSP})/

QP_UNSAFE =

/[^#{qp_safe}]/

QP_SAFE =

/[#{qp_safe}]/

CONTROL_CHAR =

/[#{control}]/n

ATOM_UNSAFE =

/[#{Regexp.quote aspecial}#{control}#{sp}]/n

PHRASE_UNSAFE =

/[#{Regexp.quote aspecial}#{control}]/n

TOKEN_UNSAFE =

/[#{Regexp.quote tspecial}#{control}#{sp}]/n

ENCODED_VALUE =

%r{
  \=\?     # literal =?
  ([^?]+)  #
  \?       # literal ?
  ([QB])   # either a "Q" or a "B"
  \?       # literal ?
  .*?      # lazily match all characters
  \?\=     # literal ?=
}mix

FULL_ENCODED_VALUE = m is multi-line, i is case-insensitive, x is free-spacing

%r{ # Identical to ENCODED_VALUE but captures the whole rather than components of
  (
    \=\?    # literal =?
    [^?]+   #
    \?      # literal ?
    [QB]    # either a "Q" or a "B"
    \?      # literal ?
    .*?     # lazily match all characters
    \?\=    # literal ?=
  )
}mix

EMPTY = m is multi-line, i is case-insensitive, x is free-spacing

''

SPACE =

' '

UNDERSCORE =

'_'

HYPHEN =

'-'

COLON =

':'

ASTERISK =

'*'

CRLF =

"\r\n"

CR =

"\r"

LF =

"\n"

CR_ENCODED =

"=0D"

LF_ENCODED =

"=0A"

CAPITAL_M =

'M'

EQUAL_LF =

"=\n"

NULL_SENDER =

'<>'

Q_VALUES =

['Q','q']

B_VALUES =

['B','b']