Module: Vcard::Bnf
- Defined in:
- lib/vcard/bnf.rb
Overview
Contains regular expressions for the EBNF of RFC 2425.
Constant Summary collapse
- NAME =
1*(ALPHA / DIGIT / “-”) Note: “_” allowed because produced by Notes (X-LOTUS-CHILD_UID:) Note: “/” allowed because produced by KAddressBook (X-messaging/xmpp-All:) Note: “ ” allowed because produced by highrisehq.com (X-GOOGLE TALK:)
/[\w\/-][ \w\/-]*/
- QSTR =
<“> <Any character except CTLs, DQUOTE> <”>
/"([^"]*)"/
- PTEXT =
*<Any character except CTLs, DQUOTE, “;”, “:”, “,”>
/([^";:,]+)/
- PVALUE =
param-value = ptext / quoted-string
/(?:#{QSTR}|#{PTEXT})/
- PARAM =
param = name “=” param-value *(“,” param-value) Note: v2.1 allows a type or encoding param-value to appear without the type= or the encoding=. This is hideous, but we try and support it, if there is no “=”, then $2 will be “”, and we will treat it as a v2.1 param.
/;(#{NAME})(=?)((?:#{PVALUE})?(?:,#{PVALUE})*)/
- LINE =
V3.0: contentline = [group “.”] name *(“;” param) “:” value V2.1: contentline = *( group “.” ) name *(“;” param) “:” value We accept the V2.1 syntax for backwards compatibility.
/\A((?:#{NAME}\.)*)?(#{NAME})((?:#{PARAM})*):(.*)\z/
- DATE_PARTIAL =
date = date-fullyear [“-”] date-month [“-”] date-mday date-fullyear = 4 DIGIT date-month = 2 DIGIT date-mday = 2 DIGIT
/(\d\d\d\d)-?(\d\d)-?(\d\d)/
- DATE =
/\A\s*#{DATE_PARTIAL}\s*\z/
- TIME_PARTIAL =
time = time-hour [“:”] time-minute [“:”] time-second [time-secfrac] [time-zone] time-hour = 2 DIGIT time-minute = 2 DIGIT time-second = 2 DIGIT time-secfrac = “,” 1*DIGIT time-zone = “Z” / time-numzone time-numzone = sign time-hour [“:”] time-minute
/(\d\d):?(\d\d):?(\d\d)(\.\d+)?(Z|[-+]\d\d:?\d\d)?/
- TIME =
/\A\s*#{TIME_PARTIAL}\s*\z/
- DATE_TIME =
date-time = date “T” time
/\A\s*#{DATE_PARTIAL}T#{TIME_PARTIAL}\s*\z/
- INTEGER =
integer = ([“+”] / “-”) 1*DIGIT
/\A\s*[-+]?\d+\s*\z/
- QSAFECHAR =
QSAFE-CHAR = WSP / %x21 / %x23-7E / NON-US-ASCII
; Any character except CTLs and DQUOTE
set ascii encoding so that multibyte chars can be properly escaped
Regexp.new("[ \t\x21\x23-\x7e\x80-\xff]")
- ALL_QSAFECHARS =
/\A#{QSAFECHAR}*\z/
- SAFECHAR =
SAFE-CHAR = WSP / %x21 / %x23-2B / %x2D-39 / %x3C-7E / NON-US-ASCII
; Any character except CTLs, DQUOTE, ";", ":", ","
escape character classes then create new Regexp
Regexp.new(Regexp.escape("[ \t\x21\x23-\x2b\x2d-\x39\x3c-\x7e\x80-\xff]"))
- ALL_SAFECHARS =
/\A#{SAFECHAR}*\z/
- UNTERMINATED_QUOTED_PRINTABLE =
A quoted-printable encoded string with a trailing ‘=’, indicating that it’s not terminated
/ENCODING=QUOTED-PRINTABLE:.*=$/