ditkrg/validates_timeliness
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simplify tokens to hash and generate in reverse order of token length

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This commit is contained in:
Adam Meehan 2010-09-17 13:42:21 +10:00
parent 1df8ab121e
commit 1fb89d6455
1 changed files with 27 additions and 25 deletions
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52
lib/validates_timeliness/parser.rb
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@ -119,7 +119,7 @@ module ValidatesTimeliness
# All tokens available for format construction. The token array is made of
# token regexp, validation regexp and key for format proc mapping if any.
# validation regexp and key for format proc mapping if any.
# If the token needs no format proc arg then the validation regexp should
# not have a capturing group, as all captured groups are passed to the
# format proc.
@ -127,27 +127,28 @@ module ValidatesTimeliness
# The token regexp should only use a capture group if 'look-behind' anchor
# is required. The first capture group will be considered a literal and put
# into the validation regexp string as-is. This is a hack.
@@format_tokens = [
{ 'ddd' => [ /d{3}/, '\w{3,9}' ] },
{ 'dd' => [ /d{2}/, '\d{2}', :day ] },
{ 'd' => [ /d/, '\d{1,2}', :day ] },
{ 'ampm' => [ /ampm/, '[aApP]\.?[mM]\.?', :meridian ] },
{ 'mmm' => [ /m{3}/, '\w{3,9}', :month ] },
{ 'mm' => [ /m{2}/, '\d{2}', :month ] },
{ 'm' => [ /m{1}/, '\d{1,2}', :month ] },
{ 'yyyy' => [ /y{4}/, '\d{4}', :year ] },
{ 'yy' => [ /y{2}/, '\d{4}|\d{2}', :year ] },
{ 'hh' => [ /h{2}/, '\d{2}', :hour ] },
{ 'h' => [ /h{1}/, '\d{1,2}', :hour ] },
{ 'nn' => [ /n{2}/, '\d{2}', :min ] },
{ 'n' => [ /n{1}/, '\d{1,2}', :min ] },
{ 'ss' => [ /s{2}/, '\d{2}', :sec ] },
{ 's' => [ /s{1}/, '\d{1,2}', :sec ] },
{ 'u' => [ /u{1}/, '\d{1,6}', :usec ] },
{ 'zo' => [ /zo/, '[+-]\d{2}:?\d{2}', :offset ] },
{ 'tz' => [ /tz/, '[A-Z]{1,4}' ] },
{ '_' => [ /_/, '\s?' ] }
]
#
@@format_tokens = {
'ddd' => [ '\w{3,9}' ],
'dd' => [ '\d{2}', :day ],
'd' => [ '\d{1,2}', :day ],
'ampm' => [ '[aApP]\.?[mM]\.?', :meridian ],
'mmm' => [ '\w{3,9}', :month ],
'mm' => [ '\d{2}', :month ],
'm' => [ '\d{1,2}', :month ],
'yyyy' => [ '\d{4}', :year ],
'yy' => [ '\d{4}|\d{2}', :year ],
'hh' => [ '\d{2}', :hour ],
'h' => [ '\d{1,2}', :hour ],
'nn' => [ '\d{2}', :min ],
'n' => [ '\d{1,2}', :min ],
'ss' => [ '\d{2}', :sec ],
's' => [ '\d{1,2}', :sec ],
'u' => [ '\d{1,6}', :usec ],
'zo' => [ '[+-]\d{2}:?\d{2}', :offset ],
'tz' => [ '[A-Z]{1,4}' ],
'_' => [ '\s?' ]
}
# Arguments which will be passed to the format proc if matched in the
# time string. The key must be the key from the format tokens. The array
@ -331,9 +332,10 @@ module ValidatesTimeliness
format.gsub!(/([\.\\])/, '\\\\\1') # escapes dots and backslashes
found_tokens, token_order = [], []
format_tokens.each do |token|
token_regexp, regexp_str, arg_key = *token.values.first
if format.gsub!(token_regexp, "%<#{found_tokens.size}>")
tokens = format_tokens.keys.sort {|a,b| a.size <=> b.size }.reverse
tokens.each do |token|
regexp_str, arg_key = *format_tokens[token]
if format.gsub!(/#{token}/, "%<#{found_tokens.size}>")
regexp_str = "(#{regexp_str})" if arg_key
found_tokens << [regexp_str, arg_key]
end