["x"] = { off = " by ", on = " ×&nbsp;", abbr_range_x = true },
["xx"] = "&nbsp;×&nbsp;",
["*"] = "×",
["/"] = "&thinsp;/&thinsp;", -- for a table of high/low temperatures with
}  
local range_aliases = {
-- ["alternative name for a range"] = "standard range name"
["–"] = "-",
["&ndash;"] = "-",
["×"] = "x",
["&times;"] = "x",
["±"] = "+/-",
["&plusmn;"] = "+/-",
}  
-- Convert accepts range text delimited with whitespace, for example, .
-- In addition, the following "words" are accepted without spaces, for example, .
-- Words must be in correct order for searching, for example, 'x' after 'xx'.
local range_words = { '-', '–', 'xx', 'x', '*' }  
local ranges = {
types = range_types,
aliases = range_aliases,
words = range_words,
}  
-- Valid option names.
local en_option_name = {
-- ["local text for option name"] = "en name used in this module"
["$"] = "$",
["abbr"] = "abbr",
["adj"] = "adj",
["altitude_ft"] = "altitude_ft",
["altitude_m"] = "altitude_m",
["comma"] = "comma",
["debug"] = "debug",
["disp"] = "disp",
["frac"] = "frac",
["input"] = "input",
["lang"] = "lang",
["lk"] = "lk",
["order"] = "order",
["qid"] = "qid",
["qual"] = "qual",
["qualifier"] = "qual",
["round"] = "round",
["sigfig"] = "sigfig",
["sing"] = "adj", -- "sing" is an old alias for "adj"
["sortable"] = "sortable",
["sp"] = "sp",
["spell"] = "spell",
["stylein"] = "stylein",
["styleout"] = "styleout",
["tracking"] = "tracking",
}  
-- Valid option values.
-- Convention: parms.opt_xxx refers to an option that is set here
-- (not intended to be set by the template which invokes this module).
-- Example: At enwiki, "abbr" includes:
-- ["values"] = "opt_values"
-- As a result, if the template uses abbr=values, Module:Convert sets:
-- parms["opt_values"] = true
-- parms["abbr"] = nil
-- Therefore parms.abbr will be nil, or will have one of the listed values
-- that do not start with "opt_".
-- An option value of form "xxx?" is the same as "xxx" but shows the input as deprecated.
local en_option_value = {
["$"] = 'TEXT', -- TEXT should be a currency symbol that will be used instead of "$"
["abbr"] = {
-- ["local text for option value"] = "en value used in this module"
["def"] = "", -- ignored (some wrapper templates call convert with "abbr=def" to mean "default abbreviation")
["h"] = "on", -- abbr=on + use "h" for hand unit (default)
["hh"] = "opt_hand_hh", -- abbr=on + use "hh" for hand unit
["in"] = "in", -- use symbol for LHS unit
[""] = "off", -- old name for "off"
["off"] = "off", -- use name for all units
["on"] = "on", -- use symbol for all units
["out"] = "out", -- use symbol for RHS unit (default)
["unit"] = "unit", -- abbr=on but abbreviate units only: e6km → million km (not ×10⁶ km)
["values"] = "opt_values", -- show only input and output numbers, not units
["~"] = "opt_also_symbol", -- show input unit symbol as well as name
},
["adj"] = {
["mid"] = "opt_adjectival, opt_adj_mid", -- adj=on with user-specified text after input unit (between input and output)
["off"] = "", -- ignored (off is the default)
["on"] = "opt_adjectival", -- unit name is singular and hyphenated
["pre"] = "opt_one_preunit", -- user-specified text before input unit
["ri0"] = "opt_ri=0", -- round input with precision = 0
["ri1"] = "opt_ri=1", -- round input with precision = 1
["ri2"] = "opt_ri=2", -- round input with precision = 2
["ri3"] = "opt_ri=3", -- round input with precision = 3
},
["altitude_ft"] = 'INTEGER',
["altitude_m"] = 'INTEGER',
["comma"] = {
["5"] = "opt_comma5", -- only use numsep grouping if 5 or more digits
["gaps"] = "opt_gaps", -- use gaps, not numsep, to separate groups of digits
["gaps3"] = "opt_gaps, opt_gaps3", -- group only in threes rather than default of no gap before a single digit after decimal mark
["off"] = "opt_nocomma", -- no numsep in input or output numbers
},
["debug"] = {
["yes"] = "opt_sortable_debug", -- make the normally hidden sort key visible
},
["disp"] = {
["5"] = "opt_round=5?", -- round output value to nearest 5
["b"] = "b", -- join: '(...)'
["(or)"] = "(or)", -- join: '(...)' with 'or' between outputs in a combination
["br"] = "br", -- join: '
'
["br"] = "br", -- join: '
(...)'
["comma"] = "comma", -- join: ','
["flip"] = "opt_flip", -- reverse order of input/output
["number"] = "opt_output_number_only", -- display output value (not input, and not output symbol/name)
["or"] = "or", -- join: 'or'
["out"] = "opt_output_only",
["output number only"] = "opt_output_number_only",
["output only"] = "opt_output_only",
["preunit"] = "opt_two_preunits", -- user-specified text before input and output units
["sqbr"] = "sqbr", -- join: '[...]'
["table"] = "opt_table", -- output is suitable for a table cell with
["tablecen"] = "opt_tablecen", -- output is suitable for a table cell with
["unit"] = "opt_input_unit_only", -- display input symbol/name (not output, and not input value)
["unit or text"] = "opt_input_unit_only, opt_ignore_error", -- display input symbol/name, or given unit code if not known
["unit2"] = "opt_output_unit_only",
["x"] = "x", -- join: <first>...<second> (user-specified text)
},
["frac"] = 'INTEGER',
["input"] = 'TEXT', -- TEXT should be value><space><unitcode> or <wikidata-property-id>
["lang"] = { -- language for output digits (both en and local digits are always accepted for input)
["en"] = "opt_lang_en", -- use en digits for numbers, regardless of local language
["local"] = "opt_lang_local", -- use local digits for numbers (default, although config can change default to en)
},
["lk"] = {
["in"] = "in", -- link LHS unit name or symbol
["off"] = "off", -- do not link: same as default except for hand unit
["on"] = "on", -- link all unit names or symbols (but not twice for the same unit)
["out"] = "out", -- link RHS unit name or symbol
},
["order"] = {
["flip"] = "opt_flip", -- reverse order of input/output
["out"] = "opt_order_out", -- do not show input; instead, use order in output combination, with the first output shown as the input
},
["qid"] = 'TEXT', -- TEXT should be a Wikidata Q item identifier
["qual"] = 'TEXT', -- TEXT should be a Wikidata Q item identifier
["round"] = {
["0.5"] = "opt_round=0.5", -- round output value to nearest 0.5
["5"] = "opt_round=5", -- round output value to nearest 5
["10"] = "opt_round=10", -- round output value to nearest 10 (same as but clearer than "|-1")
["25"] = "opt_round=25", -- round output value to nearest 25
["50"] = "opt_round=50", -- round output value to nearest 50
["each"] = "opt_round_each", -- using default precision in a range, round each output separately (default uses highest precision of each item in range)
},
["sigfig"] = 'INTEGER',
["sortable"] = {
["off"] = "", -- ignored (off is the default)
["on"] = "opt_sortable_on", -- output sort key for use in a sortable table, based on value from converting to a standard base unit
["debug"] = "opt_sortable_on, opt_sortable_debug", -- |sortable=debug is the same as |sortable=on|debug=yes
},
["sp"] = {
["us"] = "opt_sp_us", -- use U.S. spelling (like "meter" instead of default "metre")
},
["spell"] = { -- only English spelling is supported; not scientific notation; only some fractions
["in"] = "opt_spell_in", -- spell input value in words
["In"] = "opt_spell_in, opt_spell_upper", -- spell input value in words with first letter uppercase
["on"] = "opt_spell_in, opt_spell_out", -- spell input and output values in words
["On"] = "opt_spell_in, opt_spell_out, opt_spell_upper", -- same, with first letter of first word in result uppercase
},
["stylein"] = 'TEXT',
["styleout"] = 'TEXT',
["tracking"] = 'TEXT',
}  
local titles = {
["frac"] = "Fraction/styles.css",
["sfrac"] = "Sfrac/styles.css",
}  
return {
SIprefixes = SIprefixes,
all_categories = all_categories,
all_messages = all_messages,
currency = { ['$'] = true, ['£'] = true, ['€'] = true, ['₱'] = true, ['₽'] = true, ['¥'] = true },
customary_units = customary_units,
disp_joins = disp_joins,
en_option_name = en_option_name,
en_option_value = en_option_value,
eng_scales = eng_scales,