Module: RDF::Tabular::UAX35
- Included in:
- Datatype
- Defined in:
- vendor/bundler/ruby/3.3.0/bundler/gems/rdf-tabular-52804f52e930/lib/rdf/tabular/uax35.rb
Overview
Utilities for parsing UAX35 dates and numbers.
Defined Under Namespace
Classes: ParseError
Instance Method Summary collapse
-
#build_number_re(pattern, groupChar, decimalChar) ⇒ Regexp
Build a regular expression from the provided pattern to match value, after suitable modifications.
-
#parse_uax35_date(pattern, value) ⇒ String
Parse the date pattern (if provided), and match against the value (if provided) Otherwise, validate pattern and raise an error.
-
#parse_uax35_number(pattern, value, groupChar = ",", decimalChar = ".") ⇒ String
Parse the date pattern (if provided), and match against the value (if provided) Otherwise, validate pattern and raise an error.
Instance Method Details
#build_number_re(pattern, groupChar, decimalChar) ⇒ Regexp
Build a regular expression from the provided pattern to match value, after suitable modifications
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-tabular-52804f52e930/lib/rdf/tabular/uax35.rb', line 262 def build_number_re(pattern, groupChar, decimalChar) # pattern must be composed of only 0, #, decimalChar, groupChar, E, %, and ‰ ge = Regexp.escape groupChar de = Regexp.escape decimalChar default_pattern = /^ ([+-]? [\d#{ge}]+ (#{de}[\d#{ge}]+ ([Ee][+-]?\d+)? )?[%‰]? |NAN|INF|-INF) $/x return default_pattern if pattern.nil? numeric_pattern = / # Mantissa (\#|#{ge})* (0|#{ge})* # Fractional (?:#{de} (0|#{ge})* (\#|#{ge})* # Exponent (E [+-]? (?:\#|#{ge})* (?:0|#{ge})* )? )? /x legal_number_pattern = /^(?<prefix>[^\#0]*)(?<numeric_part>#{numeric_pattern})(?<suffix>.*)$/x match = legal_number_pattern.match(pattern) raise ArgumentError, "unrecognized number pattern #{pattern}" if match["numeric_part"].empty? prefix, numeric_part, suffix = match["prefix"], match["numeric_part"], match["suffix"] prefix = Regexp.escape prefix unless prefix.empty? prefix += "[+-]?" unless prefix =~ /[+-]/ suffix = Regexp.escape suffix unless suffix.empty? # Split on decimalChar and E parts = numeric_part.split("E") mantissa_part, exponent_part = parts[0], (parts[1] || '') mantissa_parts = mantissa_part.split(decimalChar) raise ArgumentError, "Multiple decimal separators in #{pattern}" if mantissa_parts.length > 2 integer_part, fractional_part = mantissa_parts[0], mantissa_parts[1] || '' min_integer_digits = integer_part.gsub(groupChar, '').gsub('#', '').length all_integer_digits = integer_part.gsub(groupChar, '').length all_integer_digits += 1 if all_integer_digits == min_integer_digits min_fractional_digits = fractional_part.gsub(groupChar, '').gsub('#', '').length max_fractional_digits = fractional_part.gsub(groupChar, '').length exponent_sign = exponent_part[0] if exponent_part =~ /^[+-]/ min_exponent_digits = exponent_part.sub(/[+-]/, '').gsub("#", "").length max_exponent_digits = exponent_part.sub(/[+-]/, '').length integer_parts = integer_part.split(groupChar)[1..-1] primary_grouping_size = integer_parts[-1].to_s.length secondary_grouping_size = integer_parts.length <= 1 ? primary_grouping_size : integer_parts[-2].length fractional_parts = fractional_part.split(groupChar)[0..-2] fractional_grouping_size = fractional_parts[0].to_s.length # Construct regular expression for integer part integer_str = if primary_grouping_size == 0 "\\d{#{min_integer_digits},}" else # These number of groupings must be there integer_parts = [] integer_rem = 0 while min_integer_digits > 0 sz = [primary_grouping_size, min_integer_digits].min integer_rem = primary_grouping_size - sz integer_parts << "\\d{#{sz}}" min_integer_digits -= sz all_integer_digits -= sz primary_grouping_size = secondary_grouping_size end required_digits = integer_parts.reverse.join(ge) if all_integer_digits > 0 # Add digits up to end of group creating # (?:(?:\d)?)\d)? ... integer_parts = [] while integer_rem > 0 integer_parts << '\d' integer_rem -= 1 end # If secondary_grouping_size is not primary_grouping_size, add digits up to secondary_grouping_size if secondary_grouping_size != primary_grouping_size primary_grouping_size = secondary_grouping_size integer_rem = primary_grouping_size - 1 integer_parts << '\d' + ge while integer_rem > 0 integer_parts << '\d' integer_rem -= 1 end end # Allow repeated separated groups if integer_parts.empty? opt_digits = "(?:\\d{1,#{primary_grouping_size}}#{ge})?(?:\\d{#{primary_grouping_size}}#{ge})*" else integer_parts[-1] = "(?:\\d{1,#{primary_grouping_size}}#{ge})?(?:\\d{#{primary_grouping_size}}#{ge})*#{integer_parts[-1]}" opt_digits = integer_parts.reverse.inject("") {|memo, part| "(?:#{memo}#{part})?"} end opt_digits + required_digits else required_digits end end # Construct regular expression for fractional part fractional_str = if max_fractional_digits > 0 if fractional_grouping_size == 0 min_fractional_digits == max_fractional_digits ? "\\d{#{max_fractional_digits}}" : "\\d{#{min_fractional_digits},#{max_fractional_digits}}" else # These number of groupings must be there fractional_parts = [] fractional_rem = 0 while min_fractional_digits > 0 sz = [fractional_grouping_size, min_fractional_digits].min fractional_rem = fractional_grouping_size - sz fractional_parts << "\\d{#{sz}}" max_fractional_digits -= sz min_fractional_digits -= sz end required_digits = fractional_parts.join(ge) # If max digits fill within existing group fractional_parts = [] while max_fractional_digits > 0 fractional_parts << (fractional_rem == 0 ? ge + '\d' : '\d') max_fractional_digits -= 1 fractional_rem = (fractional_rem - 1) % fractional_grouping_size end opt_digits = fractional_parts.reverse.inject("") {|memo, part| "(?:#{part}#{memo})?"} required_digits + opt_digits end end.to_s fractional_str = de + fractional_str unless fractional_str.empty? fractional_str = "(?:#{fractional_str})?" if max_fractional_digits > 0 && min_fractional_digits == 0 # Exponent pattern exponent_str = case when max_exponent_digits > 0 && max_exponent_digits == min_exponent_digits "E#{exponent_sign ? Regexp.escape(exponent_sign) : '[+-]?'}\\d{#{max_exponent_digits}}" when max_exponent_digits > 0 "E#{exponent_sign ? Regexp.escape(exponent_sign) : '[+-]?'}\\d{#{min_exponent_digits},#{max_exponent_digits}}" when min_exponent_digits > 0 "E#{exponent_sign ? Regexp.escape(exponent_sign) : '[+-]?'}\\d{#{min_exponent_digits},#{max_exponent_digits}}" end Regexp.new("^(?<prefix>#{prefix})(?<numeric_part>#{integer_str}#{fractional_str}#{exponent_str})(?<suffix>#{suffix})$") end |
#parse_uax35_date(pattern, value) ⇒ String
Parse the date pattern (if provided), and match against the value (if provided) Otherwise, validate pattern and raise an error.
Supported patterns are:
- yyyy-MM-dd
- yyyyMMdd
- dd-MM-yyyy
- d-M-yyyy
- d-M-yy
- d-M-y
- MM-dd-yyyy
- M-d-yyyy
- M-d-yy
- M-d-y
- dd/MM/yyyy
- d/M/yyyy
- d/M/yy
- d/M/y
- MM/dd/yyyy
- M/d/yyyy
- M/d/yy
- M/d/y
- dd.MM.yyyy
- d.M.yyyy
- d.M.yy
- d.M.y
- MM.dd.yyyy
- M.d.yyyy
- M.d.yy
- M.d.y
- yyyy-MM-ddTHH:mm
- yyyy-MM-ddTHH:mm:ss
- yyyy-MM-ddTHH:mm:ss.S+
Year comonents less than four digits are normalized to 1900 or 2000 based on if the value is <= 99 or >= 70, it is considered to be in the 1900 range, otherwise, based on 2000.
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-tabular-52804f52e930/lib/rdf/tabular/uax35.rb', line 52 def parse_uax35_date(pattern, value) date_pattern, time_pattern = nil, nil return value unless pattern orig_value = value ||= "" orig_pattern = pattern # Extract tz info if md = pattern.match(/^(.*[dyms])+(\s*[xX]+)$/) pattern, tz_pattern = md[1], md[2] end date_pattern, time_pattern = pattern.split(' ') # Snuff out if this is a Time pattern date_pattern, time_pattern = nil, date_pattern if time_pattern.nil? && !date_pattern.match(/[TyMd]/) # Extract date, of specified date_part = case date_pattern when 'yyyy-MM-dd' then value.match(/^(?<yr>\d{4})-(?<mo>\d{2})-(?<da>\d{2})/) when 'yyyyMMdd' then value.match(/^(?<yr>\d{4})(?<mo>\d{2})(?<da>\d{2})/) when 'dd-MM-yyyy' then value.match(/^(?<da>\d{2})-(?<mo>\d{2})-(?<yr>\d{4})/) when 'd-M-yyyy' then value.match(/^(?<da>\d{1,2})-(?<mo>\d{1,2})-(?<yr>\d{4})/) when 'd-M-yy' then value.match(/^(?<da>\d{1,2})-(?<mo>\d{1,2})-(?<yr>\d{2})/) when 'd-M-y' then value.match(/^(?<da>\d{1,2})-(?<mo>\d{1,2})-(?<yr>\d{1,4})/) when 'MM-dd-yyyy' then value.match(/^(?<mo>\d{2})-(?<da>\d{2})-(?<yr>\d{4})/) when 'M-d-yyyy' then value.match(/^(?<mo>\d{1,2})-(?<da>\d{1,2})-(?<yr>\d{4})/) when 'M-d-yy' then value.match(/^(?<mo>\d{1,2})-(?<da>\d{1,2})-(?<yr>\d{2})/) when 'M-d-y' then value.match(/^(?<mo>\d{1,2})-(?<da>\d{1,2})-(?<yr>\d{1,4})/) when 'dd/MM/yyyy' then value.match(/^(?<da>\d{2})\/(?<mo>\d{2})\/(?<yr>\d{1,4})/) when 'd/M/yyyy' then value.match(/^(?<da>\d{1,2})\/(?<mo>\d{1,2})\/(?<yr>\d{4})/) when 'd/M/yy' then value.match(/^(?<da>\d{1,2})\/(?<mo>\d{1,2})\/(?<yr>\d{2})/) when 'd/M/y' then value.match(/^(?<da>\d{1,2})\/(?<mo>\d{1,2})\/(?<yr>\d{1,4})/) when 'MM/dd/yyyy' then value.match(/^(?<mo>\d{2})\/(?<da>\d{2})\/(?<yr>\d{1,4})/) when 'M/d/yyyy' then value.match(/^(?<mo>\d{1,2})\/(?<da>\d{1,2})\/(?<yr>\d{4})/) when 'M/d/yy' then value.match(/^(?<mo>\d{1,2})\/(?<da>\d{1,2})\/(?<yr>\d{2})/) when 'M/d/y' then value.match(/^(?<mo>\d{1,2})\/(?<da>\d{1,2})\/(?<yr>\d{1,4})/) when 'dd.MM.yyyy' then value.match(/^(?<da>\d{2})\.(?<mo>\d{2})\.(?<yr>\d{4})/) when 'd.M.yyyy' then value.match(/^(?<da>\d{1,2})\.(?<mo>\d{1,2})\.(?<yr>\d{4})/) when 'd.M.yy' then value.match(/^(?<da>\d{1,2})\.(?<mo>\d{1,2})\.(?<yr>\d{2})/) when 'd.M.y' then value.match(/^(?<da>\d{1,2})\.(?<mo>\d{1,2})\.(?<yr>\d{1,4})/) when 'MM.dd.yyyy' then value.match(/^(?<mo>\d{2})\.(?<da>\d{2})\.(?<yr>\d{4})/) when 'M.d.yyyy' then value.match(/^(?<mo>\d{1,2})\.(?<da>\d{1,2})\.(?<yr>\d{4})/) when 'M.d.yy' then value.match(/^(?<mo>\d{1,2})\.(?<da>\d{1,2})\.(?<yr>\d{2})/) when 'M.d.y' then value.match(/^(?<mo>\d{1,2})\.(?<da>\d{1,2})\.(?<yr>\d{1,4})/) when 'yyyy-MM-ddTHH:mm' then value.match(/^(?<yr>\d{4})-(?<mo>\d{2})-(?<da>\d{2})T(?<hr>\d{2}):(?<mi>\d{2})(?<se>(?<ms>))/) when 'yyyy-MM-ddTHH:mm:ss' then value.match(/^(?<yr>\d{4})-(?<mo>\d{2})-(?<da>\d{2})T(?<hr>\d{2}):(?<mi>\d{2}):(?<se>\d{2})(?<ms>)/) when /yyyy-MM-ddTHH:mm:ss\.S+/ md = value.match(/^(?<yr>\d{4})-(?<mo>\d{2})-(?<da>\d{2})T(?<hr>\d{2}):(?<mi>\d{2}):(?<se>\d{2})\.(?<ms>\d+)/) num_ms = date_pattern.match(/S+/).to_s.length md if md && md[:ms].length <= num_ms else raise ArgumentError, "unrecognized date/time pattern #{date_pattern}" if date_pattern nil end # Forward past date part if date_part value = value[date_part.to_s.length..-1] value = value.lstrip if date_part && value.start_with?(' ') end # Extract time, of specified time_part = case time_pattern when 'HH:mm:ss' then value.match(/^(?<hr>\d{2}):(?<mi>\d{2}):(?<se>\d{2})(?<ms>)/) when 'HHmmss' then value.match(/^(?<hr>\d{2})(?<mi>\d{2})(?<se>\d{2})(?<ms>)/) when 'HH:mm' then value.match(/^(?<hr>\d{2}):(?<mi>\d{2})(?<se>)(?<ms>)/) when 'HHmm' then value.match(/^(?<hr>\d{2})(?<mi>\d{2})(?<se>)(?<ms>)/) when /HH:mm:ss\.S+/ md = value.match(/^(?<hr>\d{2}):(?<mi>\d{2}):(?<se>\d{2})\.(?<ms>\d+)/) num_ms = time_pattern.match(/S+/).to_s.length md if md && md[:ms].length <= num_ms else raise ArgumentError, "unrecognized date/time pattern #{pattern}" if time_pattern nil end # If there's a date_pattern but no date_part, match fails raise ParseError, "#{orig_value} does not match pattern #{orig_pattern}" if !orig_value.empty? && date_pattern && date_part.nil? # If there's a time_pattern but no time_part, match fails raise ParseError, "#{orig_value} does not match pattern #{orig_pattern}" if !orig_value.empty? && time_pattern && time_part.nil? # Forward past time part value = value[time_part.to_s.length..-1] if time_part # Use datetime match for time time_part = date_part if date_part && date_part.names.include?("hr") # If there's a timezone, it may optionally start with whitespace value = value.lstrip if tz_pattern.to_s.start_with?(' ') tz_part = case tz_pattern.to_s.lstrip when 'x' then value.match(/^(?:(?<hr>[+-]\d{2})(?<mi>\d{2})?)$/) when 'X' then value.match(/^(?:(?:(?<hr>[+-]\d{2})(?<mi>\d{2})?)|(?<z>Z))$/) when 'xx' then value.match(/^(?:(?<hr>[+-]\d{2})(?<mi>\d{2}))|$/) when 'XX' then value.match(/^(?:(?:(?<hr>[+-]\d{2})(?<mi>\d{2}))|(?<z>Z))$/) when 'xxx' then value.match(/^(?:(?<hr>[+-]\d{2}):(?<mi>\d{2}))$/) when 'XXX' then value.match(/^(?:(?:(?<hr>[+-]\d{2}):(?<mi>\d{2}))|(?<z>Z))$/) else raise ArgumentError, "unrecognized timezone pattern #{tz_pattern.to_s.lstrip}" if tz_pattern nil end # If there's a tz_pattern but no time_part, match fails raise ParseError, "#{orig_value} does not match pattern #{orig_pattern}" if !orig_value.empty? && tz_pattern && tz_part.nil? # Compose normalized value vd = if date_part yr, mo, da = [date_part[:yr], date_part[:mo], date_part[:da]].map(&:to_i) if date_part[:yr].length < 4 # Make sure that yr makes sense, if given yr = case yr when 0..69 then yr + 2000 when 100..999 then yr + 2000 when 70..99 then yr + 1900 else yr end end ("%04d-%02d-%02d" % [yr, mo, da]) end vt = ("%02d:%02d:%02d" % [time_part[:hr].to_i, time_part[:mi].to_i, time_part[:se].to_i]) if time_part # Add milliseconds, if matched vt += ".#{time_part[:ms]}" if time_part && !time_part[:ms].empty? value = [vd, vt].compact.join('T') value += tz_part[:z] ? "Z" : ("%s:%02d" % [tz_part[:hr], tz_part[:mi].to_i]) if tz_part value end |
#parse_uax35_number(pattern, value, groupChar = ",", decimalChar = ".") ⇒ String
Parse the date pattern (if provided), and match against the value (if provided) Otherwise, validate pattern and raise an error
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-tabular-52804f52e930/lib/rdf/tabular/uax35.rb', line 193 def parse_uax35_number(pattern, value, groupChar=",", decimalChar=".") value ||= "" re = build_number_re(pattern, groupChar, decimalChar) raise ParseError, "#{value} has repeating #{groupChar.inspect}" if groupChar.length == 1 && value.include?(groupChar*2) # Upcase value and remove internal spaces value = value.upcase if value =~ re # Upcase value and remove internal spaces value = value. gsub(/\s+/, ''). gsub(groupChar, ''). gsub(decimalChar, '.') # result re-assembles parts removed from value value elsif !value.empty? # no match raise ParseError, "#{value.inspect} does not match #{pattern.inspect}" end # Extract percent or per-mille sign case value when /%/ value = value.sub('%', '') lhs, rhs = value.split('.') # Shift decimal value = case lhs.length when 0 then "0.00#{rhs}".sub('E', 'e') when 1 then "0.0#{lhs}#{rhs}".sub('E', 'e') when 2 then "0.#{lhs}#{rhs}".sub('E', 'e') else ll, lr = lhs[0..lhs.length-3], lhs[-2..-1] ll = ll + "0" unless ll =~ /\d+/ "#{ll}.#{lr}#{rhs}".sub('E', 'e') end when /‰/ value = value.sub('‰', '') lhs, rhs = value.split('.') # Shift decimal value = case lhs.length when 0 then "0.000#{rhs}".sub('E', 'e') when 1 then "0.00#{lhs}#{rhs}".sub('E', 'e') when 2 then "0.0#{lhs}#{rhs}".sub('E', 'e') when 3 then "0.#{lhs}#{rhs}".sub('E', 'e') else ll, lr = lhs[0..lhs.length-4], lhs[-3..-1] ll = ll + "0" unless ll =~ /\d+/ "#{ll}.#{lr}#{rhs}".sub('E', 'e') end when /NAN/ then value.sub('NAN', 'NaN') when /E/ then value.sub('E', 'e') else value end end |