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# lines, and fromlines
lex
rl day /[A-Z][a-z][a-z]/
rl month /[A-Z][a-z][a-z]/
rl year /[0-9][0-9][0-9][0-9]/
rl time /[0-9][0-9] ':' [0-9][0-9] ( ':' [0-9][0-9] )? /
rl letterZone /[A-Z][A-Z][A-Z]/
rl numZone /[+\-][0-9][0-9][0-9][0-9]/
rl zone / letterZone | numZone/
rl dayNum /[0-9 ][0-9]/
# These are the different formats of the date minus an obscure
# type that has a funny string 'remote from xxx' on the end. Taken
# from c-client in the imap-2000 distribution.
rl date / day ' ' month ' ' dayNum ' ' time ' '
( year | year ' ' zone | zone ' ' year ) /
# From lines separate messages. We will exclude from_line from a message
# body line. This will cause us to stay in message line up until an
# entirely correct from line is matched.
token from_line / 'From ' (any-'\n')* ' ' date '\n' /
token simple_line / [^\n]* '\n' /
end
rl hchar /print - [ :]/
token header_name /hchar+/
token colon /':' ' '*/
token header_content / ([^\n] | '\n' [ \t])* '\n'/
token blank_line / '\n' /
def header
[header_name colon header_content]
def message
[from_line header* blank_line simple_line*]
def start
[message*]
parse S: start[ stdin ]
print_xml( S.tree )
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