Documentation for this module may be created at Module:Convert/text/doc

-- Text used by Module:Convert, for mni.wikipedia.org (Meetei).
-- This is a separate module to simplify translation for use on another wiki.
-- See [[:en:Template:Convert/Transwiki guide]] if copying to another wiki.

local translation_table = {
	group = 2,           -- group numbers 3 digits, then 2 digits
	per_word = '꯱ꯗ',    -- for units like "miles per gallon"
	plural_suffix = '',  -- disable plural unit names
	from_en = {
		['0'] = '꯰',
		['1'] = '꯱',
		['2'] = '꯲',
		['3'] = '꯳',
		['4'] = '꯴',
		['5'] = '꯵',
		['6'] = '꯶',
		['7'] = '꯷',
		['8'] = '꯸',
		['9'] = '꯹',
	},
	to_en = {
		['꯰'] = '0',
		['꯱'] = '1',
		['꯲'] = '2',
		['꯳'] = '3',
		['꯴'] = '4',
		['꯵'] = '5',
		['꯶'] = '6',
		['꯷'] = '7',
		['꯸'] = '8',
		['꯹'] = '9',
	},
	specials = {         -- for special processing by makeunits
		utype = {
			-- ["unit type in local language"] = "name_used_in_this_script"
			["ꯊꯥꯎ ꯆꯥꯕꯒꯤ ꯆꯥꯡ"] = "type_fuel_efficiency",
			["ꯑꯁꯥꯡꯕ"] = "type_length",
			["ꯑꯌꯤꯡ ꯑꯁꯥ"] = "type_temperature",
			["ꯕꯣꯂꯨꯝ"] = "type_volume",
		},
		ucode = {
			exception = {
				-- ["unit code in local language"] = "name_used_in_module_convert"
				["ft"] = "integer_more_precision",
				["in"] = "subunit_more_precision",
				["lb"] = "integer_more_precision",
				["ꯐꯨꯠ"] = "integer_more_precision",
				["ꯏꯟꯆꯤ"] = "subunit_more_precision",
			},
			istemperature = {
				-- Common temperature scales (not keVT or MK).
				-- ["unit code in local language"] = 1
				["C"] = true,
				["F"] = true,
				["K"] = true,
				["R"] = true,
			},
			usesymbol = {
				-- Use unit symbol not name if abbr not specified.
				-- ["unit code in local language"] = 1
				["C"] = 1,
				["F"] = 1,
				["K"] = 1,
				["R"] = 1,
				["C-change"] = 1,
				["F-change"] = 1,
				["K-change"] = 1,
			},
			alttype = {
				-- Unit has an alternate type that is a valid conversion.
				-- ["unit code in local language"] = "alternate type in local language"
				["Nm"] = "energy",
				["ftlb"] = "torque",
				["ftlb-f"] = "torque",
				["ftlbf"] = "torque",
				["inlb"] = "torque",
				["inlb-f"] = "torque",
				["inlbf"] = "torque",
				["inoz-f"] = "torque",
				["inozf"] = "torque",
			},
		},
	},
	mtext = {
		-- Text used by Module:Convert/makeunits.
		titles = {
			-- name_used_in_this_script = "Title of page"
			conversion_data = 'User:Johnuniq/Conversion data',
		},
	},
}

-- Some units accept an SI prefix before the unit code, such as "kg" for kilogram.
local SIprefixes = {
	-- The prefix field is what the prefix should be, if different from the prefix used.
	4,  -- SIprefixes[1] = maximum number of characters (as seen by mw.ustring.sub) in a prefix
		-- nano = 'ꯅꯥꯅꯣ' in UTF-8: (e0 a6 a8), (e0 a7 8d), (e0 a6 af), (e0 a6 be)
	['Y']  = { exponent =  24, name = 'ꯌꯣꯇꯥ', prefix = 'ꯌ' },
	['Z']  = { exponent =  21, name = 'ꯓꯦꯇꯥ' , prefix = 'ꯓꯦ'  },
	['E']  = { exponent =  18, name = 'ꯑꯦꯛꯖꯥ' , prefix = 'ꯑꯦ'  },
	['P']  = { exponent =  15, name = 'ꯄꯦꯇꯥ'  , prefix = 'ꯄꯦ'  },
	['T']  = { exponent =  12, name = 'ꯇꯦꯔꯥ'  , prefix = 'ꯇꯦ'  },
	['G']  = { exponent =   9, name = 'ꯒꯤꯒꯥ'  , prefix = 'ꯒꯤ'  },
	['M']  = { exponent =   6, name = 'ꯃꯦꯒꯥ'  , prefix = 'ꯃꯦ'  },
	['k']  = { exponent =   3, name = 'ꯀꯤꯂꯣ'  , prefix = 'ꯀꯤ'  },
	['h']  = { exponent =   2, name = 'ꯍꯦꯛꯇꯣ' , prefix = 'ꯍꯦ'  },
	['da'] = { exponent =   1, name = 'ꯗꯦꯀꯥ'  , prefix = 'ꯗ'  },
	['d']  = { exponent =  -1, name = 'ꯗꯦꯁꯤ'  , prefix = 'ꯗꯦ'  },
	['c']  = { exponent =  -2, name = 'ꯁꯦꯟꯇꯤ' , prefix = 'ꯁꯤꯑꯦꯝ'  },
	['m']  = { exponent =  -3, name = 'ꯃꯤꯂꯤ'  , prefix = 'ꯃꯤ'  },
	['μ']  = { exponent =  -6, name = 'ꯃꯥꯏꯀ꯭ꯔꯣ', prefix = 'ꯃꯥꯏ' },  -- key = 'GREEK SMALL LETTER MU' (U+03BC) utf-8 CE BC
	['µ']  = { exponent =  -6, name = 'ꯃꯥꯏꯀ꯭ꯔꯣ', prefix = 'ꯃꯥꯏ' },  -- key = 'MICRO SIGN' (U+00B5) utf-8 C2 B5
	['u']  = { exponent =  -6, name = 'ꯃꯥꯏꯀ꯭ꯔꯣ', prefix = 'ꯃꯥꯏ' },  -- not an SI prefix, but allow for people typing this
	['n']  = { exponent =  -9, name = 'ꯅꯥꯅꯣ' , prefix = 'ꯅꯥ' },
	['p']  = { exponent = -12, name = 'ꯄꯤꯀꯣ'  , prefix = 'ꯄꯤ'  },
	['f']  = { exponent = -15, name = 'ꯐꯦꯝꯇꯣ' , prefix = 'ꯐꯦ'  },
	['a']  = { exponent = -18, name = 'ꯑꯦꯇꯣ', prefix = 'ꯑꯦꯇꯣ' },
	['z']  = { exponent = -21, name = 'ꯓꯦꯇꯣ' , prefix = 'ꯓꯣ' },
	['y']  = { exponent = -24, name = 'ꯌꯣꯇꯣ', prefix = 'ꯌꯣ'},
	['ꯌ'] = { exponent =  24, name = 'ꯌꯣꯇꯥ',               },
	['ꯓꯦ']  = { exponent =  21, name = 'ꯓꯦꯇꯥ' ,               },
	['ꯑꯦ']  = { exponent =  18, name = 'ꯑꯦꯛꯖꯥ' ,               },
	['ꯄꯦ']  = { exponent =  15, name = 'ꯄꯦꯇꯥ'  ,               },
	['ꯇꯦ']  = { exponent =  12, name = 'ꯇꯦꯔꯥ'  ,               },
	['ꯒꯤ']  = { exponent =   9, name = 'ꯒꯤꯒꯥ'  ,               },
	['ꯃꯦ']  = { exponent =   6, name = 'ꯃꯦꯒꯥ'  ,               },
	['ꯀꯤ']  = { exponent =   3, name = 'ꯀꯤꯂꯣ'  ,               },
	['ꯍꯦ']  = { exponent =   2, name = 'ꯍꯦꯛꯇꯣ' ,               },
	['ꯗ']  = { exponent =   1, name = 'ꯗꯦꯀꯥ'  ,               },
	['ꯗꯦ']  = { exponent =  -1, name = 'ꯗꯦꯁꯤ'  ,               },
	['ꯁꯤꯑꯦꯝ']  = { exponent =  -2, name = 'ꯁꯦꯟꯇꯤ' ,               },
	['ꯃꯤ']  = { exponent =  -3, name = 'ꯃꯤꯂꯤ'  ,               },
	['ꯃꯥꯏ'] = { exponent =  -6, name = 'ꯃꯥꯏꯀ꯭ꯔꯣ',               },
	['ꯅꯥ'] = { exponent =  -9, name = 'ꯅꯥꯅꯣ' ,               },
	['ꯄꯤ']  = { exponent = -12, name = 'ꯄꯤꯀꯣ'  ,               },
	['ꯐꯦ']  = { exponent = -15, name = 'ꯐꯦꯝꯇꯣ' ,               },
	['ꯑꯦ'] = { exponent = -18, name = 'ꯑꯦꯇꯣ',               },
	['ꯓꯦꯞ'] = { exponent = -21, name = 'ꯓꯦꯝꯇꯥ' ,               },
	['ꯌꯣ']= { exponent = -24, name = 'ꯌꯣꯇꯣ',               },
}

-- Some units can be qualified with one of the following prefixes, when linked.
local customary_units = {
	{ "US", link = "United States customary units" },
	{ "U.S.", link = "United States customary units" },
	{ "imperial", link = "Imperial unit" },
	{ "imp", link = "Imperial unit" },
}

-- Names when using engineering notation (a prefix of "eN" where N is a number; example "e6km").
-- key = { "name", link = "article title", exponent = numeric_key_value }
-- If lk=on and link is defined, the name of the number will appear as a link.
local eng_scales = {
	["3"]  = { "ꯂꯤꯁꯤꯡ"    , link = "ꯂꯤꯁꯤꯡ",                    exponent = 3  },
	["5"] =  { "ꯂꯤꯆꯥ"    , link = "ꯂꯤꯆꯥ",                    exponent = 5  },
	["6"]  = { "ꯂꯤꯆꯥ ꯇꯔꯥ"    , link = "ꯂꯤꯆꯥ ꯇꯔꯥ",                    exponent = 6  },
	["7"]  = { "ꯂꯤꯄꯨꯟ"     , link = "ꯂꯤꯄꯨꯟ",                     exponent = 7  },
	["9"]  = { "ꯂꯤꯄꯣꯠ"   , link = "꯱꯰꯰꯰꯰꯰꯰꯰꯰꯰ (ꯃꯁꯤꯡ)",       exponent = 9  },
	["12"] = { "ꯂꯤꯀꯩ ꯇꯔꯥ"  , link = "꯱꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰ (ꯃꯁꯤꯡ)",    exponent = 12 },
	["15"] = { "ꯄꯨ ꯆꯥꯝꯃꯥ", link = "꯱꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰꯰ (ꯃꯁꯤꯡ)", exponent = 15 },
}

-- One of the following categories is included in the text of each message.
local all_categories = {
	unit = "[[Category:Convert error]]",
	option = "[[Category:Convert error]]",
}

-- For some error messages, the following puts the wanted style around
-- each unit code marked like '...%{ft%}...'.
local unitcode_regex = '%%([{}])'
local unitcode_replace = { ['{'] = '"', ['}'] = '"' }  -- no longer need the more elaborate substitute used before 2013-09-28

-- All messages that may be displayed if a problem occurs.
local all_messages = {
	-- Message format string, %s parameters: anchor, title, text, category.
	-- Each displayed message starts with "Convert:" so can easily locate by searching article.
	cvt_format = '<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i>[[Category:Transformation messages#%s|<span title="Convert: %s">ꯑꯣꯟꯁꯤꯟꯕ: %s</span>]]</i>]</sup>%s',
	-- Each of following messages is a table:
	-- { [1] = 'title',         -- mouseover title text
	--   [2] = 'text',          -- link text displayed in article
	--   [3] = 'category key',  -- key to lookup category in all_categories
	--   [4] = 'anchor',        -- anchor for link to relevant section on help page
	--   regex = gsub_regex,
	--   replace = gsub_table,
	-- }                    Mouseover title text                          Link text                CatKey     Anchor
	cvt_bad_num        = { 'মান "%s" অবশ্যই সংখ্যা হতে হবে'                   , 'অকার্যকর সংখ্যা'            , 'option',  'invalid_number'       },
	cvt_big_prec       = { '"%s"-এর নির্ভুলতা অত্যন্ত বড়'                    , 'নির্ভুলতা অত্যন্ত বড়'        , 'option',  'precision_too_large'  },
	cvt_invalid_num    = { 'সংখ্যা সীমার বাইরে চলে গেছে'                         , 'সংখ্যা সীমার বাইরে'           , 'option',  'number_overflow'      },
	cvt_no_num         = { 'রুপান্তরিত করার সংখ্যা প্রয়োজন'                      , 'একটি সংখ্যা প্রয়োজন'         , 'option',  'needs_number'         },
	cvt_no_num2        = { 'একটি পরিসীমা জন্য আরেকটি সংখ্যা প্রয়োজন'               , 'আরেকটি সংখ্যা প্রয়োজন'        , 'option',  'needs_another_number' },
	cvt_bad_frac       = { 'ভগ্নাংশ "%s" অবশ্যই ১ উপরের একটি পূর্ণসংখ্যা হতে হবে'   , 'ভগ্নাংশ অকার্যকর'           , 'option',  'invalid_fraction'     },
	cvt_bad_prec       = { 'নির্ভুলতা "%s" অবশ্যই পূর্ণসংখ্যা সংখ্যা হতে হবে'         , 'নির্ভুলতা অকার্যকর'          , 'option',  'invalid_precision'    },
	cvt_bad_sigfig     = { 'sigfig "%s" অবশ্যই ধনাত্মক পূর্ণসংখ্যা সংখ্যা হতে হবে'  , 'অকার্যকর sigfig'         , 'option',  'invalid_sigfig'       },
	cvt_empty_option   = { 'খালি অপশন "%s" উপেক্ষিত হয়েছে'                    , 'খালি অপশন'               , 'option',  'empty_option'         },
	cvt_no_spell       = { 'বানান দুষ্প্রাপ্য'                                , 'বাগ, সাহায্যের জন্য জিজ্ঞাসা করুন', 'option',  'ask_for_help'         },
	cvt_unknown_option = { 'অবৈধ সুবিধা "%s" উপেক্ষিত হয়েছে'                    , 'অকার্যকর অপশন'           , 'option',  'invalid_option'       },
	cvt_bad_default    = { '"%s" এককে পূর্বনির্ধারিত অবৈধ ত্রুটি রয়েছে'             , 'বাগ, সাহায্যের জন্য জিজ্ঞাসা করুন', 'unit'  ,  'ask_for_help'         },
	cvt_bad_unit       = { 'এখানে একক "%s" অবৈধ'                          , 'এখানে একক অবৈধ'           , 'unit'  ,  'unit_invalid_here'    },
	cvt_no_default     = { 'একক "%s"-এর পূর্ব-নির্ধারিত আউটপুট একক নেই'        , 'বাগ, সাহায্যের জন্য জিজ্ঞাসা করুন', 'unit'  ,  'ask_for_help'         },
	cvt_no_unit        = { 'এককের নাম প্রয়োজন'                             , 'এককের নাম প্রয়োজন'         , 'unit'  ,  'needs_unit_name'      },
	cvt_unknown        = { 'একক "%s" অজানা'                              , 'অজানা একক'               , 'unit'  ,  'unknown_unit'         },
	cvt_should_be      = { '%s'                                        , 'অনির্ধারিত একক'            , 'unit'  ,  'ambiguous_unit', regex = unitcode_regex, replace = unitcode_replace },
	cvt_mismatch       = { '"%s" থেকে "%s" রূপান্তর অসম্ভব'                  , 'অসামঞ্জস্য একক'           , 'unit'  ,  'unit_mismatch'        },
	cvt_bug_convert    = { 'বাগ: নির্দিষ্ট এককে রূপান্তর সম্ভব নয়'               , 'বাগ, সাহায্যের জন্য জিজ্ঞাসা করুন', 'unit'  ,  'ask_for_help'         },
	cvt_lookup         = { 'একক "%s" ত্রুটিপূর্ণভাবে সংজ্ঞায়িত হয়েছে'               , 'বাগ, সাহায্যের জন্য জিজ্ঞাসা করুন', 'unit'  ,  'ask_for_help'         },
}

-- Text to join input value/unit with output value/unit.
local disp_joins = {
	["ꯅꯠꯇ꯭ꯔꯒ"]        = { " ꯅꯠꯇ꯭ꯔꯒ "   , ""  },       -- or
	["or"]         = { " ꯅꯠꯇ꯭ꯔꯒ "   , ""  },
	["sqbr-sp"]    = { " ["      , "]" },
	["sqbr-nbsp"]  = { "&nbsp;[" , "]" },
	["comma"]      = { ", "      , ""  },
	["slash-sp"]   = { " / "     , ""  },
	["slash-nbsp"] = { "&nbsp;/ ", ""  },
	["slash-nosp"] = { "/"       , ""  },
	["b"]          = { " ("      , ")" },
	["br"]         = { "<br/>"   , ""  },
}

-- Text to separate values in a range.
local range_types = {
	-- Specifying a table requires "off" and "on" values (for "abbr=off" and "abbr=on");
	-- other fields are optional.
	-- When "adj=on|abbr=off" applies, spaces in range text are replaced with hyphens.
	-- With "exception = true", that also occurs with "adj=on|abbr=on".
	-- If "adj" is defined here, that text (unchanged) is used with "adj=on".
	["꯱ꯁꯨꯡ"]     = " ꯱ꯁꯨꯡ ",        -- and
	[",꯱ꯁꯨꯡ"]   = ", ꯱ꯁꯨꯡ ",       -- , and
	["ꯅꯥ"]     = " ꯅꯥ ",        -- by
	["ꯅꯠꯇ꯭ꯔꯒ"]    = " ꯅꯠꯇ꯭ꯔꯒ ",       -- or
	["ꯗꯒꯤ"]     = " ꯗꯒꯤ ",        -- to
	["ꯑꯗꯨꯐꯥꯎ"]    = " ꯑꯗꯨꯐꯥꯎ ",       -- to about
	["+"]      = " + ",
	[","]      = ",&nbsp;",
	[", and"]  = ", ꯑꯃꯁꯨꯡ",
	[", or"]   = ", ꯅꯠꯇ꯭ꯔꯒ ",
	["by"]     = " ꯅꯥ ",
	["-"]      = "–",
	["to about"] = " ꯑꯗꯨꯐꯥꯎ ",
	["and"]    = { off = " ꯱ꯁꯨꯡ ", on = " ꯱ꯁꯨꯡ ", exception = true },
	["and(-)"] = { off = " ꯱ꯁꯨꯡ ", on = "–"                       },
	["or"]     = { off = " ꯅꯠꯇ꯭ꯔꯒ " , on = " ꯅꯠꯇ꯭ꯔꯒ " , exception = true },
	["to"]     = { off = " ꯗꯒꯤ " , on = " ꯗꯒꯤ " , exception = true },
	["to(-)"]  = { off = "&nbsp;ꯗꯒꯤ ", on = "–" },
	["+/-"]    = { off = "&nbsp;±&nbsp;", on = "&nbsp;±&nbsp;", adj = "&nbsp;±&nbsp;" },
	["x"]      = { off = " ꯅꯥ ", on = " ×&nbsp;", is_range_x = true },
	["xx"]     = "&nbsp;×&nbsp;",
	["*"]      = "×",  -- use "*" to replace "x" in {{convert/2}} which is different from "x" in old {{Convert}}
}

local range_aliases = {
	-- ["alternative name for a range"] = "standard range name"
	["&"]        = "and",
	["–"]        = "-",
	["&ndash;"]  = "-",
	["to-"]      = "to(-)",
	["×"]        = "x",
	["&times;"]  = "x",
	["±"]        = "+/-",
	["&plusmn;"] = "+/-",
}

-- The following "words" are accepted to make a simple range, for example, {{convert|1-2|ft}}.
-- Words must be in correct order for searching, for example, '-' after '+/-' and 'x' after 'xx'.
-- Put '-' last so can have a simple range with negative values as in {{convert|-5 to -1|C}}.
local range_words = { '+/-', 'to(-)', 'xx', 'x', '*', 'to', 'or', 'by', '–' , '-' }

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",
	["comma"] = "comma",
	["debug"] = "debug",
	["disp"] = "disp",
	["frac"] = "frac",
	["lang"] = "lang",
	["lk"] = "lk",
	["near"] = "near",
	["order"] = "order",
	["round"] = "round",
	["sigfig"] = "sigfig",
	["sing"] = "adj",                   -- "sing" is an old alias for "adj"
	["sortable"] = "sortable",
	["sp"] = "sp",
	["spell"] = "spell",
}

-- 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 en.wiki, "abbr" includes:
--     ["comma"] = "opt_nocomma"
-- As a result, if the template uses abbr=comma, this script sets:
--     parms["opt_nocomma"] = true
--     parms["abbr"] = nil
-- Therefore parms.abbr will be nil, or will have one of the listed values
-- that do not start with "opt_".
local en_option_value = {
	["abbr"] = {
		-- ["local text for option value"] = "en value used in this module"
		["comma"] = "opt_nocomma",      -- no numsep in input or output numbers
		["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
		["mos"] = "mos",                -- in a range, repeat the input unit (no longer used)
		["none"] = "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)
		["values"] = "opt_values",      -- show only input and output numbers, not units
		["~"] = "opt_also_symbol",      -- show input unit symbol as well as name
	},
	["adj"] = {
		["1"] = "opt_singular",         -- unit name is singular when value satisfies: (-1 <= v and v < 0) or (0 < v and v <= 1)
		["flip"] = "opt_flip",          -- reverse order of input/output
		["j"] = "opt_use_nbsp",         -- "join": use "&nbsp;" instead of " " between value and unit name
		["mid"] = "opt_adjectival, opt_adj_mid",  -- adj=on with user-specified text after input unit (between input and output)
		["nocomma"] = "opt_nocomma",    -- no numsep in input or output numbers
		["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"] = "ri0",                -- round input with precision = 0
		["ri1"] = "ri1",                -- round input with precision = 1
		["ri2"] = "ri2",                -- round input with precision = 2
		["ri3"] = "ri3",                -- round input with precision = 3
	},
	["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
		["gaps5"] = "opt_gaps, opt_comma5",  -- opt_gaps + opt_comma5
	},
	["debug"] = {
		["yes"] = "opt_sortable_debug", -- make the normally hidden sort key visible
	},
	["disp"] = {
		["/"] = "slash",                -- join: '/'
		["2"] = "opt_output_only",      -- display only output value and symbol/name (not input)
		["5"] = "opt_round5",           -- round output value to nearest 5
		["b"] = "b",                    -- join: '(...)'
		["br"] = "br",                  -- join: '<br/>'
		["comma"] = "comma",            -- join: ','
		["flip"] = "opt_flip",          -- reverse order of input/output
		["flip5"] = "opt_flip, opt_round5",  -- disp=flip + disp=5
		["nocomma"] = "opt_nocomma",    -- no numsep in input or output numbers
		["number"] = "opt_output_number_only",  -- display output value (not input, and not output symbol/name)
		["or"] = "or",                  -- join: 'or'
		["ꯅꯠꯇꯔꯒ"] = "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
		["s"] = "slash",                -- join: '/'
		["slash"] = "slash",            -- join: '/'
		["sqbr"] = "sqbr",              -- join: '[...]'
		["table"] = "opt_table",        -- output is suitable for a table cell with align="right"
		["tablecen"] = "opt_tablecen",  -- output is suitable for a table cell with align="center"
		["u2"] = "opt_output_unit_only",  -- display output symbol/name (not input, and not output value)
		["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=x is handled as a special case: x must be an integer (possibly in local language) = 1 or more
	["lang"] = {
		["en"] = "opt_lang_en",         -- use en digits for output, regardless of local language
	},
	["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
	},
	["near"] = {
		["5"] = "opt_round5",           -- round output value to nearest 5
	},
	["order"] = {
		["flip"] = "opt_flip",          -- reverse order of input/output
	},
	["round"] = {
		["5"] = "opt_round5",           -- round output value to nearest 5
		["25"] = "opt_round25",         -- round output value to nearest 25
		["each"] = "opt_round_each",    -- using default precision in a range, round each output separately (default uses highest precision of each item in range)
	},
	-- sigfig=x is handled as a special case: x must be an integer (possibly in local language) = 1 or more
	["sortable"] = {
		["off"] = "",                   -- ignored (off is the default)
		["in"] = "opt_sortable_in",     -- output numeric hidden sort field for use in a sortable table, based on input
		["on"] = "opt_sortable_in",     -- same
		["out"] = "opt_sortable_out",   -- same, based on output
	},
	["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
	},
}

return {
	SIprefixes = SIprefixes,
	all_categories = all_categories,
	all_messages = all_messages,
	currency = { ['$'] = 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,
	ranges = ranges,
	translation_table = translation_table,
}
"https://mni.wikipedia.org/w/index.php?title=Module:Convert/text&oldid=4007" ꯃꯐꯝꯗꯨꯗꯒꯤ ꯂꯧꯈꯠꯂꯛꯄꯥ