「モジュール:Convert」の版間の差分

(1版)
 
bsd>Johnuniq
(update from sandbox per Template talk:Convert#Module version 27)
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local spell_module  -- name of module that can spell numbers
local spell_module  -- name of module that can spell numbers
local speller      -- function from that module to handle spelling (set if spelling is wanted)
local speller      -- function from that module to handle spelling (set if needed)
local wikidata_module, wikidata_data_module  -- names of Wikidata modules
local wikidata_code, wikidata_data  -- exported tables from those modules (set if needed)


local function set_config(args)
local function set_config(args)
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text_module = "Module:Convert/text" .. sandbox
text_module = "Module:Convert/text" .. sandbox
extra_module = "Module:Convert/extra" .. sandbox
extra_module = "Module:Convert/extra" .. sandbox
wikidata_module = "Module:Convert/wikidata" .. sandbox
wikidata_data_module = "Module:Convert/wikidata/data" .. sandbox
spell_module = "Module:ConvertNumeric"
spell_module = "Module:ConvertNumeric"
data_code = mw.loadData(data_module)
data_code = mw.loadData(data_module)
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end
end


local function wanted_category(cat)
local function wanted_category(catkey, catsort, want_warning)
-- Return cat if it is wanted in current namespace, otherwise return nil.
-- Return message category if it is wanted in current namespace,
-- This is so tracking categories only include pages that need correction.
-- otherwise return ''.
local cat
local title = mw.title.getCurrentTitle()
local title = mw.title.getCurrentTitle()
if title then
if title then
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for _, v in ipairs(split(config.nscat or nsdefault, ',')) do
for _, v in ipairs(split(config.nscat or nsdefault, ',')) do
if namespace == tonumber(v) then
if namespace == tonumber(v) then
return cat
cat = text_code.all_categories[want_warning and 'warning' or catkey]
if catsort and catsort ~= '' and cat:sub(-2) == ']]' then
cat = cat:sub(1, -3) .. '|' .. mw.text.nowiki(usub(catsort, 1, 20)) .. ']]'
end
break
end
end
end
end
end
end
return cat or ''
end
end


local function message(mcode)
local function message(parms, mcode, is_warning)
-- Return wikitext for an error message, including category if specified
-- Return wikitext for an error message, including category if specified
-- for the message type.
-- for the message type.
-- mcode = numbered table specifying the message:
-- mcode = numbered table specifying the message:
--    mcode[1] = 'cvt_xxx' (string used as a key to get message info)
--    mcode[1] = 'cvt_xxx' (string used as a key to get message info)
--    mcode[2] = 'parm1' (string to replace first %s if any in message)
--    mcode[2] = 'parm1' (string to replace '$1' if any in message)
--    mcode[3] = 'parm2' (string to replace second %s if any in message)
--    mcode[3] = 'parm2' (string to replace '$2' if any in message)
--    mcode[4] = 'parm3' (string to replace third %s if any in message)
--    mcode[4] = 'parm3' (string to replace '$3' if any in message)
local msg = text_code.all_messages[mcode[1]]
local msg
local nowiki = mw.text.nowiki
if type(mcode) == 'table' then
if mcode[1] == 'cvt_no_output' then
-- Some errors should cause convert to output an empty string,
-- for example, for an optional field in an infobox.
return ''
end
msg = text_code.all_messages[mcode[1]]
end
parms.have_problem = true
local function subparm(fmt, ...)
local rep = {}
for i, v in ipairs({...}) do
rep['$' .. i] = v
end
return (fmt:gsub('$%d+', rep))
end
if msg then
if msg then
local parts = {}
local parts = {}
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append = '...'
append = '...'
end
end
s = nowiki(s) .. (append or '')
s = mw.text.nowiki(s) .. (append or '')
else
else
s = '?'
s = '?'
end
end
parts[i] = s
parts['$' .. i] = s
end
end
local title = format(msg[1] or 'Missing message', parts[1], parts[2], parts[3])
local function ispreview()
local text = msg[2] or 'Missing message'
-- Return true if a prominent message should be shown.
local cat = wanted_category(text_code.all_categories[msg[3]]) or ''
if parms.test == 'preview' or parms.test == 'nopreview' then
-- For testing, can preview a real message or simulate a preview
-- when running automated tests.
return parms.test == 'preview'
end
local success, revid = pcall(function ()
return (parms.frame):preprocess('{{REVISIONID}}') end)
return success and (revid == '')
end
local want_warning = is_warning and
not config.warnings and  -- show unobtrusive warnings if config.warnings not configured
not msg.nowarn          -- but use msg settings, not standard warning, if specified
local title = string.gsub(msg[1] or 'Missing message', '$%d+', parts)
local text = want_warning and '*' or msg[2] or 'Missing message'
local cat = wanted_category(msg[3], mcode[2], want_warning)
local anchor = msg[4] or ''
local anchor = msg[4] or ''
local fmt = text_code.all_messages[msg.format or 'cvt_format'] or 'convert: bug'
local fmtkey = ispreview() and 'cvt_format_preview' or
title = title:gsub('"', '"')
(want_warning and 'cvt_format2' or msg.format or 'cvt_format')
return format(fmt, anchor, title, text, cat)
local fmt = text_code.all_messages[fmtkey] or 'convert: bug'
return subparm(fmt, title:gsub('"', '"'), text, cat, anchor)
end
end
return 'Convert internal error: unknown message'
return 'Convert internal error: unknown message'
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function add_warning(parms, level, key, text1, text2)  -- for forward declaration above
function add_warning(parms, level, key, text1, text2)  -- for forward declaration above
-- If enabled, add a warning that will be displayed after the convert result.
-- If enabled, add a warning that will be displayed after the convert result.
-- A higher level is more verbose: more kinds of warnings are displayed.
-- To reduce output noise, only the first warning is displayed.
-- To reduce output noise, only the first warning is displayed.
if config.warnings or level < 0 then
if level <= (tonumber(config.warnings) or 1) then
if level <= (tonumber(config.warnings) or 1) then
if parms.warnings == nil then
if parms.warnings == nil then
parms.warnings = message(parms, { key, text1, text2 }, true)
parms.warnings = message({ key, text1, text2 })
end
end
end
end
end
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success, speller = pcall(get_speller, spell_module)
success, speller = pcall(get_speller, spell_module)
if not success or type(speller) ~= 'function' then
if not success or type(speller) ~= 'function' then
add_warning(parms, 1, 'cvt_no_spell')
add_warning(parms, 1, 'cvt_no_spell', 'spell')
return nil
return nil
end
end
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-- If no altitude given, use default (zero altitude = sea level).
-- If no altitude given, use default (zero altitude = sea level).
-- Table gives speed of sound in miles per hour at various altitudes:
-- Table gives speed of sound in miles per hour at various altitudes:
--  altitude = -17,499 to 302,499 feet
--  altitude = -17,499 to 402,499 feet
-- mach_table[a + 4] = s where
-- mach_table[a + 4] = s where
--  a = (altitude / 5000) rounded to nearest integer (-3 to 60)
--  a = (altitude / 5000) rounded to nearest integer (-3 to 80)
--  s = speed of sound (mph) at that altitude
--  s = speed of sound (mph) at that altitude
-- LATER: Should calculate result from an interpolation between the next
-- LATER: Should calculate result from an interpolation between the next
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660.1, 660.1, 660.1, 662.0, 664.3, 666.5, 668.9, 671.1, 673.4, 675.6,  -- 11 to 20
660.1, 660.1, 660.1, 662.0, 664.3, 666.5, 668.9, 671.1, 673.4, 675.6,  -- 11 to 20
677.9, 683.7, 689.9, 696.0, 702.1, 708.1, 714.0, 719.9, 725.8, 731.6,  -- 21 to 30
677.9, 683.7, 689.9, 696.0, 702.1, 708.1, 714.0, 719.9, 725.8, 731.6,  -- 21 to 30
737.3, 737.7, 737.7, 736.2, 730.5, 724.6, 718.8, 712.9, 707.0, 701.1,  -- 31 to 40
737.3, 737.7, 737.7, 736.2, 730.5, 724.6, 718.8, 712.9, 707.0, 701.0,  -- 31 to 40
695.0, 688.9, 682.8, 676.6, 670.4, 664.1, 657.8, 652.9, 648.3, 643.7,  -- 41 to 50
695.0, 688.9, 682.8, 676.6, 670.4, 664.1, 657.8, 652.9, 648.3, 643.7,  -- 41 to 50
639.1, 634.4, 629.6, 624.8, 620.0, 615.2, 613.2, 613.2, 613.2, 613.5,  -- 51 to 60
639.1, 634.4, 629.6, 624.8, 620.0, 615.2, 613.2, 613.2, 613.2, 613.5,  -- 51 to 60
614.4, 615.3, 616.7, 619.8, 623.4, 629.7, 635.0, 641.1, 650.6, 660.0,  -- 61 to 70
672.5, 674.3, 676.1, 677.9, 679.7, 681.5, 683.3, 685.1, 686.8, 688.6,  -- 71 to 80
}
}
altitude = altitude or 0
altitude = altitude or 0
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if a < -3 then
if a < -3 then
a = -3
a = -3
elseif a > 60 then
elseif a > 80 then
a = 60
a = 80
end
end
return mach_table[a + 4] * 0.44704  -- mph converted to m/s
return mach_table[a + 4] * 0.44704  -- mph converted to m/s
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-- END: Code required only for built-in units.
-- END: Code required only for built-in units.
------------------------------------------------------------------------
------------------------------------------------------------------------
local function add_style(parms, class)
-- Add selected template style to parms if not already present.
parms.templatestyles = parms.templatestyles or {}
if not parms.templatestyles[class] then
parms.templatestyles[class] = parms.frame:extensionTag({
name = 'templatestyles', args = { src = text_code.titles[class] }
})
end
end
local function get_styles(parms)
-- Return string of required template styles, empty if none.
if parms.templatestyles then
local t = {}
for _, v in pairs(parms.templatestyles) do
table.insert(t, v)
end
return table.concat(t)
end
return ''
end


local function get_range(word)
local function get_range(word)
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-- This is never called to determine a unit name or link because per units
-- This is never called to determine a unit name or link because per units
-- are handled as a special case.
-- are handled as a special case.
-- Similarly, the default output is handled elsewhere.
-- Similarly, the default output is handled elsewhere, and for a symbol
-- this is only called from get_default() for default_exceptions.
__index = function (self, key)
__index = function (self, key)
local value
local value
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}
}


local function make_per(unit_table, ulookup)
local function make_per(unitcode, unit_table, ulookup)
-- Return true, t where t is a per unit with unit codes expanded to unit tables,
-- Return true, t where t is a per unit with unit codes expanded to unit tables,
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
local result = { utype = unit_table.utype, per = {} }
local result = {
unitcode = unitcode,
utype = unit_table.utype,
per = {}
}
override_from(result, unit_table, { 'invert', 'iscomplex', 'default', 'link', 'symbol', 'symlink' })
override_from(result, unit_table, { 'invert', 'iscomplex', 'default', 'link', 'symbol', 'symlink' })
result.symbol_raw = (result.symbol or false)  -- to distinguish between a defined exception and a metatable calculation
result.symbol_raw = (result.symbol or false)  -- to distinguish between a defined exception and a metatable calculation
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-- Wikignomes may also put two spaces or "&nbsp;" in combinations, so
-- Wikignomes may also put two spaces or "&nbsp;" in combinations, so
-- replace underscore, "&nbsp;", and multiple spaces with a single space.
-- replace underscore, "&nbsp;", and multiple spaces with a single space.
utable = utable or all_units
utable = utable or parms.unittable or all_units
fails = fails or {}
fails = fails or {}
depth = depth and depth + 1 or 1
depth = depth and depth + 1 or 1
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end
end
unitcode = unitcode:gsub('_', ' '):gsub('&nbsp;', ' '):gsub('  +', ' ')
unitcode = unitcode:gsub('_', ' '):gsub('&nbsp;', ' '):gsub('  +', ' ')
local function call_make_per(t)
return make_per(unitcode, t,
function (ucode) return lookup(parms, ucode, 'no_combination', utable, fails, depth) end
)
end
local t = utable[unitcode]
local t = utable[unitcode]
if t then
if t then
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end
end
if t.per then
if t.per then
return make_per(t, function (ucode) return lookup(parms, ucode, 'no_combination', utable, fails, depth) end)
return call_make_per(t)
end
end
local combo = t.combination  -- nil or a table of unitcodes
local combo = t.combination  -- nil or a table of unitcodes
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end
end
local result = shallow_copy(t)
local result = shallow_copy(t)
result.unitcode = unitcode
if result.prefixes then
if result.prefixes then
result.si_name = ''
result.si_name = ''
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if t and t.prefixes then
if t and t.prefixes then
local result = shallow_copy(t)
local result = shallow_copy(t)
result.unitcode = unitcode
result.si_name = parms.opt_sp_us and si.name_us or si.name
result.si_name = parms.opt_sp_us and si.name_us or si.name
result.si_prefix = si.prefix or prefix
result.si_prefix = si.prefix or prefix
result.scale = t.scale * 10 ^ (si.exponent * t.prefixes)
result.scale = t.scale * 10 ^ (si.exponent * t.prefixes)
return true, setmetatable(result, unit_prefixed_mt)
return true, setmetatable(result, unit_prefixed_mt)
end
end
end
-- Accept any unit with an engineering notation prefix like "e6cuft"
-- (million cubic feet), but not chained prefixes like "e3e6cuft",
-- and not if the unit is a combination or multiple,
-- and not if the unit has an offset or is a built-in.
-- Only en digits are accepted.
local has_plus = unitcode:find('+', 1, true)
if not has_plus then
local exponent, baseunit = unitcode:match('^e(%d+)(.*)')
if exponent then
local engscale = text_code.eng_scales[exponent]
if engscale then
local success, result = lookup(parms, baseunit, 'no_combination', utable, fails, depth)
if success and not (result.offset or result.builtin or result.engscale) then
result.defkey = unitcode  -- key to lookup default exception
result.engscale = engscale
result.scale = result.scale * 10 ^ tonumber(exponent)
return true, result
end
end
end
end
end
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local err_is_fatal
local err_is_fatal
local combo = collection()
local combo = collection()
if has_plus then
if unitcode:find('+', 1, true) then
err_is_fatal = true
err_is_fatal = true
for item in (unitcode .. '+'):gmatch('%s*(.-)%s*%+') do
for item in (unitcode .. '+'):gmatch('%s*(.-)%s*%+') do
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end
end
end
end
-- Look for x/y; split on right-most slash to get scale correct (x/y/z is x/y per z).
-- Accept any unit with an engineering notation prefix like "e6cuft"
local top, bottom = unitcode:match('^(.-)/([^/]+)$')
-- (million cubic feet), but not chained prefixes like "e3e6cuft",
if top and not unitcode:find('e%d') then
-- and not if the unit is a combination or multiple,
-- and not if the unit has an offset or is a built-in.
-- Only en digits are accepted.
local exponent, baseunit = unitcode:match('^e(%d+)(.*)')
if exponent then
local engscale = text_code.eng_scales[exponent]
if engscale then
local success, result = lookup(parms, baseunit, 'no_combination', utable, fails, depth)
if success and not (result.offset or result.builtin or result.engscale) then
result.unitcode = unitcode  -- 'e6cuft' not 'cuft'
result.defkey = unitcode  -- key to lookup default exception
result.engscale = engscale
result.scale = result.scale * 10 ^ tonumber(exponent)
return true, result
end
end
end
-- Look for x/y; split on right-most slash to get scale correct (x/y/z is x/y per z).
local top, bottom = unitcode:match('^(.-)/([^/]+)$')
if top and not unitcode:find('e%d') then
-- If valid, create an automatic per unit for an "x/y" unit code.
-- If valid, create an automatic per unit for an "x/y" unit code.
-- The unitcode must not include extraneous spaces.
-- The unitcode must not include extraneous spaces.
-- Engineering notation (apart from at start and which has been stripped before here),
-- Engineering notation (apart from at start and which has been stripped before here),
-- is not supported so do not make a per unit if find text like 'e3' in unitcode.
-- is not supported so do not make a per unit if find text like 'e3' in unitcode.
local success, result = make_per({ per = {top, bottom} }, function (ucode) return lookup(parms, ucode, 'no_combination', utable, fails, depth) end)
local success, result = call_make_per({ per = {top, bottom} })
if success then
if success then
return true, result
return true, result
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end
end
return sep .. id .. mid
return sep .. id .. mid
end
local function change_sign(text)
-- Change sign of text for correct appearance because it is negated.
if text:sub(1, 1) == '-' then
return text:sub(2)
end
return '-' .. text
end
end


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-- When using gaps, they are inserted before and after the decimal mark.
-- When using gaps, they are inserted before and after the decimal mark.
-- Separators are inserted only before the decimal mark.
-- Separators are inserted only before the decimal mark.
-- A trailing dot (as in '123.') is removed because their use appears to
-- be accidental, and such a number should be shown as '123' or '123.0'.
-- It is useful for convert to suppress the dot so, for example, '4000.'
-- is a simple way of indicating that all the digits are significant.
if text:sub(-1) == '.' then
text = text:sub(1, -2)
end
if #text < 4 or parms.opt_nocomma or numsep == '' then
if #text < 4 or parms.opt_nocomma or numsep == '' then
return from_en(text)
return from_en(text)
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local fracfmt = {
local fracfmt = {
{ -- Like {{frac}} (fraction slash).
{ -- Like {{frac}} (fraction slash).
-- 1/2    : sign, numerator, denominator
'<span class="frac" role="math">{SIGN}<span class="num">{NUM}</span>&frasl;<span class="den">{DEN}</span></span>', -- 1/2
-- 1+2/3  : signed_wholenumber, numerator, denominator
'<span class="frac" role="math">{SIGN}{WHOLE}<span class="sr-only">+</span><span class="num">{NUM}</span>&frasl;<span class="den">{DEN}</span></span>',  -- 1+2/3
'<span class="frac nowrap">%s<sup>%s</sup>&frasl;<sub>%s</sub></span>',
style = 'frac',
'<span class="frac nowrap">%s<span class="visualhide">&nbsp;</span><sup>%s</sup>&frasl;<sub>%s</sub></span>',
},
},
{ -- Like {{sfrac}} (fraction horizontal bar).
{ -- Like {{sfrac}} (stacked fraction, that is, horizontal bar).
-- 1//2  : sign, numerator, denominator (sign should probably be before the fraction, but then it can wrap, and html is already too long)
'<span class="sfrac tion" role="math">{SIGN}<span class="num">{NUM}</span><span class="sr-only">/</span><span class="den">{DEN}</span></span>', -- 1//2
-- 1+2//3 : signed_wholenumber, numerator, denominator
'<span class="sfrac" role="math">{SIGN}{WHOLE}<span class="sr-only">+</span><span class="tion"><span class="num">{NUM}</span><span class="sr-only">/</span><span class="den">{DEN}</span></span></span>',  -- 1+2//3
'<span class="sfrac nowrap" style="display:inline-block; vertical-align:-0.5em; font-size:85%%; text-align:center;"><span style="display:block; line-height:1em; padding:0 0.1em;">%s%s</span><span class="visualhide">/</span><span style="display:block; line-height:1em; padding:0 0.1em; border-top:1px solid;">%s</span></span>',
style = 'sfrac',
'<span class="sfrac nowrap">%s<span class="visualhide">&nbsp;</span><span style="display:inline-block; vertical-align:-0.5em; font-size:85%%; text-align:center;"><span style="display:block; line-height:1em; padding:0 0.1em;">%s</span><span class="visualhide">/</span><span style="display:block; line-height:1em; padding:0 0.1em; border-top:1px solid;">%s</span></span></span>',
},
},
}
}
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wholestr = nil
wholestr = nil
end
end
if wholestr then
local substitute = {
local decorated = with_separator(parms, wholestr)
SIGN = negative and MINUS or '',
if negative then
WHOLE = wholestr and with_separator(parms, wholestr),
decorated = MINUS .. decorated
NUM = from_en(numstr),
end
DEN = from_en(denstr),
local fmt = fracfmt[style][2]
}
wikitext = format(fmt, decorated, from_en(numstr), from_en(denstr))
wikitext = fracfmt[style][wholestr and 2 or 1]:gsub('{(%u+)}', substitute)
else
local sign = negative and MINUS or ''
wikitext = format(fracfmt[style][1], sign, from_en(numstr), from_en(denstr))
end
if do_spell then
if do_spell then
if negative then
if negative then
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end
end
end
end
wikitext = spell_number(parms, inout, wholestr, numstr, denstr) or wikitext
local s = spell_number(parms, inout, wholestr, numstr, denstr)
if s then
return s
end
end
end
add_style(parms, fracfmt[style].style)
return wikitext
return wikitext
end
end
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-- with the hands unit (not worth adding code to enforce that).
-- with the hands unit (not worth adding code to enforce that).
------------------------------------------------------------------------
------------------------------------------------------------------------
local numstr, whole
local leading_plus, prefix, numstr, slashes, denstr =
local leading_plus, prefix, numstr, slashes, denstr =
text:match('^%s*(%+?)%s*(.-)%s*(%d+)%s*(/+)%s*(%d+)%s*$')
text:match('^%s*(%+?)%s*(.-)%s*(%d+)%s*(/+)%s*(%d+)%s*$')
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return nil
return nil
end
end
local wholestr
local whole, wholestr
if prefix == '' then
if prefix == '' then
wholestr = ''
wholestr = ''
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-- Before processing, the input text is cleaned:
-- Before processing, the input text is cleaned:
-- * Any thousand separators (valid or not) are removed.
-- * Any thousand separators (valid or not) are removed.
-- * Any sign (and optional following whitespace) is replaced with
-- * Any sign is replaced with '-' (if negative) or '' (otherwise).
--  '-' (if negative) or '' (otherwise).
--  That replaces Unicode minus with '-'.
--  That replaces Unicode minus with '-'.
-- If successful, the returned info table contains named fields:
-- If successful, the returned info table contains named fields:
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while #remainder > 0 do
while #remainder > 0 do
local ref, spaces
local ref, spaces
ref, spaces, remainder = remainder:match('^(\127UNIQ[^\127]*%-ref%-%x+%-QINU\127)(%s*)(.*)')
ref, spaces, remainder = remainder:match('^(\127[^\127]*UNIQ[^\127]*%-ref[^\127]*\127)(%s*)(.*)')
if ref then
if ref then
table.insert(refs, ref)
table.insert(refs, ref)
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local valstr
local valstr
for _, prefix in ipairs({ '-', MINUS, '&minus;' }) do
for _, prefix in ipairs({ '-', MINUS, '&minus;' }) do
-- Including '-' means inputs like '- 2' (with space) are accepted as -2.
-- Including '-' sets isnegative in case input is a fraction like '-2-3/4'.
-- It also sets isnegative in case input is a fraction like '-2-3/4'.
local plen = #prefix
local plen = #prefix
if clean:sub(1, plen) == prefix then
if clean:sub(1, plen) == prefix then
valstr = clean:sub(plen + 1)
valstr = clean:sub(plen + 1)
if valstr:match('^%s') then  -- "- 1" is invalid but "-1 - 1/2" is ok
return false, { 'cvt_bad_num', text }
end
break
break
end
end
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end
end
end
end
local altvalue = altvalue or value
if isnegative and (value ~= 0) then
if isnegative and (value ~= 0) then
value = -value
value = -value
altvalue = -altvalue
altvalue = -(altvalue or value)
end
end
return true, {
return true, {
value = value,
value = value,
altvalue = altvalue,
altvalue = altvalue or value,
singular = singular,
singular = singular,
clean = clean,
clean = clean,
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--  v = value of text (text is a number)
--  v = value of text (text is a number)
--  f = true if value is an integer
--  f = true if value is an integer
-- Input can use en digits or digits in local language,
-- Input can use en digits or digits in local language or separators,
-- but no separators, no Unicode minus, and no fraction.
-- but no Unicode minus, and no fraction.
if text then
if text then
local number = tonumber(to_en(text))
local number = tonumber(to_en(text))
if number then
if number then
local integer, fracpart = math.modf(number)
local _, fracpart = math.modf(number)
return number, (fracpart == 0)
return number, (fracpart == 0)
end
end
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--    p2 is text to insert before the output unit
--    p2 is text to insert before the output unit
--    p1 or p2 may be nil to mean "no preunit"
--    p1 or p2 may be nil to mean "no preunit"
-- Using '+ ' gives output like "5+ feet" (no preceding space).
-- Using '+' gives output like "5+ feet" (no space before, but space after).
local function withspace(text, i)
local function withspace(text, wantboth)
-- Insert space at beginning if i == 1, or at end if i == -1.
-- Return text with space before and, if wantboth, after.
-- However, no space is inserted if there is a space or '&nbsp;'
-- However, no space is added if there is a space or '&nbsp;' or '-'
-- or '-' at that position ('-' is for adjectival text).
-- at that position ('-' is for adjectival text).
local current = text:sub(i, i)
-- There is also no space if text starts with '&'
if current == ' ' or current == '-' then
-- (e.g. '&deg;' would display a degree symbol with no preceding space).
return text
local char = text:sub(1, 1)
if char == '&' then
return text -- an html entity can be used to specify the exact display
end
end
if i == 1 then
if not (char == ' ' or char == '-' or char == '+') then
current = text:sub(1, 6)
text = ' ' .. text
else
current = text:sub(-6, -1)
end
end
if current == '&nbsp;' then
if wantboth then
return text
char = text:sub(-1, -1)
if not (char == ' ' or char == '-' or text:sub(-6, -1) == '&nbsp;') then
text = text .. ' '
end
end
end
if i == 1 then
return text
return ' ' .. text
end
return text .. ' '
end
end
local PLUS = '+ '
preunit1 = preunit1 or ''
preunit1 = preunit1 or ''
local trim1 = strip(preunit1)
local trim1 = strip(preunit1)
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return nil
return nil
end
end
return withspace(withspace(preunit1, 1), -1)
if trim1 == '+' then
return PLUS
end
return withspace(preunit1, true)
end
end
preunit1 = withspace(preunit1)
preunit2 = preunit2 or ''
preunit2 = preunit2 or ''
local trim2 = strip(preunit2)
local trim2 = strip(preunit2)
if trim1 == '' and trim2 == '' then
if trim1 == '+' then
return nil, nil
if trim2 == '' or trim2 == '+' then
return PLUS, PLUS
end
preunit1 = PLUS
end
end
if trim1 ~= '+' then
if trim2 == '' then
preunit1 = withspace(preunit1, 1)
if trim1 == '' then
end
return nil, nil
if trim2 == '&#32;' then  -- trick to make preunit2 empty
end
preunit2 = preunit1
elseif trim2 == '+' then
preunit2 = PLUS
elseif trim2 == '&#32;' then  -- trick to make preunit2 empty
preunit2 = nil
preunit2 = nil
elseif trim2 == '' then
else
preunit2 = preunit1
preunit2 = withspace(preunit2)
elseif trim2 ~= '+' then
preunit2 = withspace(preunit2, 1)
end
end
return preunit1, preunit2
return preunit1, preunit2
end
end


local function range_text(range, want_name, parms, before, after, inout)
local function range_text(range, want_name, parms, before, after, inout, options)
-- Return before .. rtext .. after
-- Return before .. rtext .. after
-- where rtext is the text that separates two values in a range.
-- where rtext is the text that separates two values in a range.
local rtext, adj_text, exception
local rtext, adj_text, exception
options = options or {}
if type(range) == 'table' then
if type(range) == 'table' then
-- Table must specify range text for ('off' and 'on') or ('input' and 'output'),
-- Table must specify range text for ('off' and 'on') or ('input' and 'output'),
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end
end
end
end
if rtext == '–' and after:sub(1, #MINUS) == MINUS then
if rtext == '–' and (options.spaced or after:sub(1, #MINUS) == MINUS) then
rtext = '&nbsp;– '
rtext = '&nbsp;– '
end
end
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local function get_composite(parms, iparm, in_unit_table)
local function get_composite(parms, iparm, in_unit_table)
-- Look for a composite input unit. For example, "{{convert|1|yd|2|ft|3|in}}"
-- Look for a composite input unit. For example, {{convert|1|yd|2|ft|3|in}}
-- would result in a call to this function with
-- would result in a call to this function with
--  iparm = 3 (parms[iparm] = "2", just after the first unit)
--  iparm = 3 (parms[iparm] = "2", just after the first unit)
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kv_pairs.sing = nil
kv_pairs.sing = nil
end
end
kv_pairs.comma = kv_pairs.comma or config.comma  -- for plwiki who want default comma=5
for loc_name, loc_value in pairs(kv_pairs) do
for loc_name, loc_value in pairs(kv_pairs) do
local en_name = text_code.en_option_name[loc_name]
local en_name = text_code.en_option_name[loc_name]
if en_name then
if en_name then
local en_value
local en_value = text_code.en_option_value[en_name]
if en_name == '$' or en_name == 'frac' or en_name == 'sigfig' then
if en_value == 'INTEGER' then  -- altitude_ft, altitude_m, frac, sigfig
en_value = nil
if loc_value == '' then
if loc_value == '' then
add_warning(parms, 2, 'cvt_empty_option', loc_name)
add_warning(parms, 2, 'cvt_empty_option', loc_name)
elseif en_name == '$' then
-- Value should be a single character like "€" for the euro currency symbol, but anything is accepted.
currency_text = (loc_value == 'euro') and '€' or loc_value
else
else
local minimum
local minimum
local number, is_integer = get_number(loc_value)
local number, is_integer = get_number(loc_value)
if en_name == 'frac' then
if en_name == 'sigfig' then
minimum = 1
elseif en_name == 'frac' then
minimum = 2
minimum = 2
if number and number < 0 then
if number and number < 0 then
1,738行目: 1,819行目:
end
end
else
else
minimum = 1
minimum = -1e6
end
end
if number and is_integer and number >= minimum then
if number and is_integer and number >= minimum then
en_value = number
en_value = number
else
else
add_warning(parms, 1, (en_name == 'frac' and 'cvt_bad_frac' or 'cvt_bad_sigfig'), loc_value)
local m
if en_name == 'frac' then
m = 'cvt_bad_frac'
elseif en_name == 'sigfig' then
m = 'cvt_bad_sigfig'
else
m = 'cvt_bad_altitude'
end
add_warning(parms, 1, m, loc_name .. '=' .. loc_value)
end
end
end
end
elseif en_name == 'stylein' or en_name == 'styleout' then
elseif en_value == 'TEXT' then  -- $, input, qid, qual, stylein, styleout, tracking
en_value = loc_value  -- accept user text with no validation
en_value = loc_value ~= '' and loc_value or nil  -- accept non-empty user text with no validation
if not en_value and (en_name == '$' or en_name == 'qid' or en_name == 'qual') then
add_warning(parms, 2, 'cvt_empty_option', loc_name)
elseif en_name == '$' then
-- Value should be a single character like "€" for the euro currency symbol, but anything is accepted.
currency_text = (loc_value == 'euro') and '€' or loc_value
elseif en_name == 'input' then
-- May have something like {{convert|input=}} (empty input) if source is an infobox
-- with optional fields. In that case, want to output nothing rather than an error.
parms.input_text = loc_value  -- keep input because parms.input is nil if loc_value == ''
end
else
else
en_value = text_code.en_option_value[en_name][loc_value]
en_value = en_value[loc_value]
if en_value and en_value:sub(-1) == '?' then
if en_value and en_value:sub(-1) == '?' then
en_value = en_value:sub(1, -2)
en_value = en_value:sub(1, -2)
1,796行目: 1,895行目:
end
end
if parms.abbr then
if parms.abbr then
if parms.abbr == 'unit' then
parms.abbr = 'on'
parms.number_word = true
end
parms.abbr_org = parms.abbr  -- original abbr, before any flip
parms.abbr_org = parms.abbr  -- original abbr, before any flip
elseif parms.opt_hand_hh then
elseif parms.opt_hand_hh then
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else
else
parms.abbr = 'out'  -- default is to abbreviate output only (use symbol, not name)
parms.abbr = 'out'  -- default is to abbreviate output only (use symbol, not name)
end
if parms.opt_order_out then
-- Disable options that do not work in a useful way with order=out.
parms.opt_flip = nil  -- override adj=flip
parms.opt_spell_in = nil
parms.opt_spell_out = nil
parms.opt_spell_upper = nil
end
end
if parms.opt_spell_out and not abbr_entered then
if parms.opt_spell_out and not abbr_entered then
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local function simple_get_values(parms)
local function simple_get_values(parms)
-- If input is like "{{convert|valid_value|valid_unit|...}}",
-- If input is like "{{convert|valid_value|valid_unit|...}}",
-- return true, 3, in_unit, in_unit_table
-- return true, i, in_unit, in_unit_table
-- 3 = index in parms of whatever follows valid_unit, if anything).
-- i = index in parms of what follows valid_unit, if anything.
-- The valid_value is not negative and does not use a fraction, and
-- The valid_value is not negative and does not use a fraction, and
-- no options requiring further processing of the input are used.
-- no options requiring further processing of the input are used.
-- Otherwise, return nothing and caller will reparse the input.
-- Otherwise, return nothing or return false, parm1 for caller to interpret.
-- Testing shows this function is successful for 96% of converts in articles,
-- Testing shows this function is successful for 96% of converts in articles,
-- and that on average it speeds up converts by 8%.
-- and that on average it speeds up converts by 8%.
if parms.opt_ri or parms.opt_spell_in then return end
local clean = to_en(strip(parms[1] or ''), parms)
local clean = to_en(strip(parms[1] or ''), parms)
if #clean > 10 or not clean:match('^[0-9.]+$') then return end
if parms.opt_ri or parms.opt_spell_in or #clean > 10 or not clean:match('^[0-9.]+$') then
return false, clean
end
local value = tonumber(clean)
local value = tonumber(clean)
if not value then return end
if not value then return end
1,989行目: 2,100行目:
end
end


local function get_parms(args)
local function wikidata_call(parms, operation, ...)
-- If successful, return true, parms, unit where
-- Return true, s where s is the result of a Wikidata operation,
-- or return false, t where t is an error message table.
local function worker(...)
wikidata_code = wikidata_code or require(wikidata_module)
wikidata_data = wikidata_data or mw.loadData(wikidata_data_module)
return wikidata_code[operation](wikidata_data, ...)
end
local success, status, result = pcall(worker, ...)
if success then
return status, result
end
if parms.opt_sortable_debug then
-- Use debug=yes to crash if an error while accessing Wikidata.
error('Error accessing Wikidata: ' .. status, 0)
end
return false, { 'cvt_wd_fail' }
end
 
local function get_parms(parms, args)
-- If successful, update parms and return true, unit where
--  parms is a table of all arguments passed to the template
--  parms is a table of all arguments passed to the template
--        converted to named arguments, and
--        converted to named arguments, and
--  unit is the input unit table;
--  unit is the input unit table;
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
-- For special processing (not a convert), can also return
-- true, wikitext where wikitext is the final result.
-- The returned input unit table may be for a fake unit using the specified
-- The returned input unit table may be for a fake unit using the specified
-- unit code as the symbol and name, and with bad_mcode = message code table.
-- unit code as the symbol and name, and with bad_mcode = message code table.
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-- whitespace entered in the template, and whitespace is used by some
-- whitespace entered in the template, and whitespace is used by some
-- parameters (example: the numbered parameters associated with "disp=x").
-- parameters (example: the numbered parameters associated with "disp=x").
local parms = {}  -- arguments passed to template, after translation
local kv_pairs = {}  -- table of input key:value pairs where key is a name; needed because cannot iterate parms and add new fields to it
local kv_pairs = {}  -- table of input key:value pairs where key is a name; needed because cannot iterate parms and add new fields to it
for k, v in pairs(args) do
for k, v in pairs(args) do
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kv_pairs[k] = v
kv_pairs[k] = v
end
end
end
if parms.test == 'wikidata' then
local ulookup = function (ucode)
-- Use empty table for parms so it does not accumulate results when used repeatedly.
return lookup({}, ucode, 'no_combination')
end
return wikidata_call(parms, '_listunits', ulookup)
end
end
local success, msg = translate_parms(parms, kv_pairs)
local success, msg = translate_parms(parms, kv_pairs)
if not success then return false, msg end
if not success then return false, msg end
if parms.input then
success, msg = wikidata_call(parms, '_adjustparameters', parms, 1)
if not success then return false, msg end
end
local success, i, in_unit, in_unit_table = simple_get_values(parms)
local success, i, in_unit, in_unit_table = simple_get_values(parms)
if not success then
if not success then
if type(i) == 'string' and i:match('^NNN+$') then
-- Some infoboxes have examples like {{convert|NNN|m}} (3 or more "N").
-- Output an empty string for these.
return false, { 'cvt_no_output' }
end
local valinfo
local valinfo
success, valinfo, i = get_values(parms)
success, valinfo, i = get_values(parms)
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success, in_unit_table = lookup(parms, in_unit, 'no_combination')
success, in_unit_table = lookup(parms, in_unit, 'no_combination')
if not success then
if not success then
if in_unit == nil then
in_unit = in_unit or ''
in_unit = ''
end
if parms.opt_ignore_error then  -- display given unit code with no error (for use with {{val}})
if parms.opt_ignore_error then  -- display given unit code with no error (for use with {{val}})
in_unit_table = ''  -- suppress error message and prevent processing of output unit
in_unit_table = ''  -- suppress error message and prevent processing of output unit
end
end
in_unit_table = setmetatable({ symbol = in_unit, name2 = in_unit,
in_unit_table = setmetatable({
default = "m", defkey = "m", linkey = "m",
symbol = in_unit, name2 = in_unit, utype = in_unit,
utype = "length", scale = 1, bad_mcode = in_unit_table }, unit_mt)
scale = 1, default = '', defkey = '', linkey = '',
bad_mcode = in_unit_table }, unit_mt)
end
end
in_unit_table.valinfo = valinfo
in_unit_table.valinfo = valinfo
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end
end
if in_unit_table.builtin == 'mach' then
if in_unit_table.builtin == 'mach' then
-- As with old template, a number following Mach as the input unit is the altitude,
-- As with old template, a number following Mach as the input unit is the altitude.
-- and there is no way to specify an altitude for the output unit.
-- That is deprecated: should use altitude_ft=NUMBER or altitude_m=NUMBER.
-- Could put more code in this function to get any output unit and check for
local success, info
-- an altitude following that unit.
success = tonumber(parms[i])  -- this will often work and will give correct result for values like 2e4 without forcing output scientific notation
local success, info = extract_number(parms, parms[i], false, true)
if success then
info = { value = success }
else
success, info = extract_number(parms, parms[i], false, true)
end
if success then
if success then
i = i + 1
i = i + 1
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end
end
end
end
local next = strip(parms[i])
local word = strip(parms[i])
i = i + 1
i = i + 1
local precision, is_bad_precision
local precision, is_bad_precision
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end
end
end
end
if not set_precision(next) then
if word and not set_precision(word) then
parms.out_unit = next
parms.out_unit = parms.out_unit or word
if set_precision(strip(parms[i])) then
if set_precision(strip(parms[i])) then
i = i + 1
i = i + 1
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end
end
if parms.opt_adj_mid then
if parms.opt_adj_mid then
next = parms[i]
word = parms[i]
i = i + 1
i = i + 1
if next then  -- mid-text words
if word then  -- mid-text words
if next:sub(1, 1) == '-' then
if word:sub(1, 1) == '-' then
parms.mid = next
parms.mid = word
else
else
parms.mid = ' ' .. next
parms.mid = ' ' .. word
end
end
end
end
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parms.precision = precision
parms.precision = precision
end
end
return true, parms, in_unit_table
for j = i, i + 3 do
local parm = parms[j]  -- warn if find a non-empty extraneous parameter
if parm and parm:match('%S') then
add_warning(parms, 1, 'cvt_unknown_option', parm)
break
end
end
return true, in_unit_table
end
end


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local fudge = 1e-14  -- {{Order of magnitude}} adds this, so we do too
local fudge = 1e-14  -- {{Order of magnitude}} adds this, so we do too
local prec, minprec, adjust
local prec, minprec, adjust
local utype = out_current.utype
local subunit_ignore_trailing_zero
local subunit_ignore_trailing_zero
local subunit_more_precision  -- kludge for "in" used in input like "|2|ft|6|in"
local subunit_more_precision  -- kludge for "in" used in input like "|2|ft|6|in"
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end
end
if in_builtin == 'mach' or out_builtin == 'mach' then
if in_builtin == 'mach' or out_builtin == 'mach' then
local adjust
-- Should check that only one altitude is given but am planning to remove
-- in_current.altitude (which can only occur when Mach is the input unit),
-- and out_current.altitude cannot occur.
local alt = parms.altitude_ft or in_current.altitude
if not alt and parms.altitude_m then
alt = parms.altitude_m / 0.3048  -- 1 ft = 0.3048 m
end
local spd = speed_of_sound(alt)
if in_builtin == 'mach' then
if in_builtin == 'mach' then
inscale = speed_of_sound(in_current.altitude)
inscale = spd
adjust = outscale / 0.1
return invalue * (inscale / outscale)
else
outscale = speed_of_sound(out_current.altitude)
adjust = 0.1 / inscale
end
end
outscale = spd
local adjust = 0.1 / inscale
return true, {
return true, {
outvalue = invalue * (inscale / outscale),
outvalue = invalue * (inscale / outscale),
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end
end
local sortspan
local sortspan
if sortkey and (parms.opt_sortable_debug or not parms.table_align) then
if sortkey and not parms.table_align then
sortspan = parms.opt_sortable_debug and
sortspan = parms.opt_sortable_debug and
'<span style="border:1px solid;display:inline;" class="sortkey">' .. sortkey .. '♠</span>' or
'<span data-sort-value="' .. sortkey .. '♠"><span style="border:1px solid">' .. sortkey .. '♠</span></span>' or
'<span style="display:none" class="sortkey">' .. sortkey .. '♠</span>'
'<span data-sort-value="' .. sortkey .. '♠"></span>'
parms.join_before = sortspan
parms.join_before = sortspan
end
end
if parms.table_align then
if parms.table_align then
local sort
if sortkey then
sort = ' data-sort-value="' .. sortkey .. '"'
if parms.opt_sortable_debug then
parms.join_before = '<span style="border:1px solid">' .. sortkey .. '</span>'
end
else
sort = ''
end
local style = 'style="text-align:' .. parms.table_align .. ';'
local style = 'style="text-align:' .. parms.table_align .. ';'
local sort = sortkey and ' data-sort-value="' .. sortkey .. '"' or ''
local joins = {}
local joins = {}
for i = 1, 2 do
for i = 1, 2 do
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--      is "1", or like "1.00", or is a fraction with value < 1;
--      is "1", or like "1.00", or is a fraction with value < 1;
--  (and more fields shown below, and a calculated 'absvalue' field).
--  (and more fields shown below, and a calculated 'absvalue' field).
-- or return true, nil if no value specified;
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
-- Input info.clean uses en digits (it has been translated, if necessary).
-- Input info.clean uses en digits (it has been translated, if necessary).
-- Output show uses en or non-en digits as appropriate, or can be spelled.
-- Output show uses en or non-en digits as appropriate, or can be spelled.
local invalue
if info then
invalue = info.value
if in_current.builtin == 'hand' then
invalue = info.altvalue
end
end
if invalue == nil or invalue == '' then
return true, nil
end
if out_current.builtin == 'hand' then
if out_current.builtin == 'hand' then
return cvt_to_hand(parms, info, in_current, out_current)
return cvt_to_hand(parms, info, in_current, out_current)
end
end
local invalue = in_current.builtin == 'hand' and info.altvalue or info.value
local outvalue, extra = convert(parms, invalue, info, in_current, out_current)
local outvalue, extra = convert(parms, invalue, info, in_current, out_current)
if parms.need_table_or_sort then
if parms.need_table_or_sort then
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outvalue = -outvalue
outvalue = -outvalue
end
end
local numerator, precision, success, show, exponent
local precision, show, exponent
local denominator = out_current.frac
local denominator = out_current.frac
if denominator then
if denominator then
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show = format('%.0f', floor((outvalue / n) + 0.5) * n)
show = format('%.0f', floor((outvalue / n) + 0.5) * n)
end
end
elseif in_current.builtin == 'mach' then
local sigfig = info.clean:gsub('^[0.]+', ''):gsub('%.', ''):len() + 1
show, exponent = make_sigfig(outvalue, sigfig)
else
else
local inclean = info.clean
local inclean = info.clean
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local linked_pages  -- to record linked pages so will not link to the same page more than once
local linked_pages  -- to record linked pages so will not link to the same page more than once


local function make_link(link, id, link_key)
local function unlink(unit_table)
-- Forget that the given unit has previously been linked (if it has).
-- That is needed when processing a range of inputs or outputs when an id
-- for the first range value may have been evaluated, but only an id for
-- the last value is displayed, and that id may need to be linked.
linked_pages[unit_table.unitcode or unit_table] = nil
end
 
local function make_link(link, id, unit_table)
-- Return wikilink "[[link|id]]", possibly abbreviated as in examples:
-- Return wikilink "[[link|id]]", possibly abbreviated as in examples:
--  [[Mile|mile]]  --> [[mile]]
--  [[Mile|mile]]  --> [[mile]]
2,727行目: 2,898行目:
-- * no link given (so caller does not need to check if a link was defined); or
-- * no link given (so caller does not need to check if a link was defined); or
-- * link has previously been used during the current convert (to avoid overlinking).
-- * link has previously been used during the current convert (to avoid overlinking).
-- Linking with a unit uses the unit table as the link key, which fails to detect
local link_key
-- overlinking for conversions like the following (each links "mile" twice):
if unit_table then
--  {{convert|1|impgal/mi|USgal/mi|lk=on}}
link_key = unit_table.unitcode or unit_table
--  {{convert|1|l/km|impgal/mi USgal/mi|lk=on}}
else
link_key = link_key or link -- use key if given (the key, but not the link, may be known when need to cancel a link record)
link_key = link
end
if not link or link == '' or linked_pages[link_key] then
if not link or link == '' or linked_pages[link_key] then
return id
return id
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else
else
i = 3
i = 3
end
if i > 1 and varname == 'pl' then
i = i - 1
end
end
vname = split(unit_table.varname, '!')[i]
vname = split(unit_table.varname, '!')[i]
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local per = unit_table.per
local per = unit_table.per
if per then
if per then
local paren1, paren2 = '', ''  -- possible parentheses around bottom unit
local unit1 = per[1]  -- top unit_table, or nil
local unit1 = per[1]  -- top unit_table, or nil
local unit2 = per[2]  -- bottom unit_table
local unit2 = per[2]  -- bottom unit_table
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return symbol  -- for exceptions that have the symbol built-in
return symbol  -- for exceptions that have the symbol built-in
end
end
end
if (unit2.symbol):find('⋅', 1, true) then
paren1, paren2 = '(', ')'
end
end
end
end
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unit_table.sep = ''
unit_table.sep = ''
end
end
return result .. linked_id(parms, unit2, key_id2, want_link, '1')
return result .. paren1 .. linked_id(parms, unit2, key_id2, want_link, '1') .. paren2
end
end
if multiplier then
if multiplier then
2,936行目: 3,115行目:
local abbr_org = parms.abbr_org
local abbr_org = parms.abbr_org
local adjectival = parms.opt_adjectival
local adjectival = parms.opt_adjectival
local disp = parms.disp
local lk = parms.lk
local lk = parms.lk
local want_link = (lk == 'on' or lk == inout)
local want_link = (lk == 'on' or lk == inout)
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local inout = unit_table.inout
local inout = unit_table.inout
local abbr = parms.abbr
local abbr = parms.abbr
if abbr == 'on' or abbr == inout then
if (abbr == 'on' or abbr == inout) and not parms.number_word then
info.show = info.show ..
info.show = info.show ..
'<span style="margin-left:0.2em">×<span style="margin-left:0.1em">' ..
'<span style="margin-left:0.2em">×<span style="margin-left:0.1em">' ..
from_en('10') ..
from_en('10') ..
'</span></span><s style="display:none">^</s><sup>' ..
'</span></span><s style="display:none">^</s><sup>' ..
from_en(tostring(engscale.exponent)) .. '</sup>'
from_en(tostring(engscale.exponent)) .. '</sup>'
elseif number_word then
elseif number_word then
local number_id
local number_id
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return  preunit .. id1
return  preunit .. id1
end
end
if parms.opt_also_symbol and not composite then
if parms.opt_also_symbol and not composite and not parms.opt_flip then
local join1 = parms.joins[1]
local join1 = parms.joins[1]
if join1 == ' (' or join1 == ' [' then
if join1 == ' (' or join1 == ' [' then
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-- For simplicity and because more not needed, handle one range item only.
-- For simplicity and because more not needed, handle one range item only.
local prefix2 = make_id(parms, 2, first_unit) .. '&nbsp;'
local prefix2 = make_id(parms, 2, first_unit) .. '&nbsp;'
result = range_text(range[1], want_name, parms, result, prefix2 .. valinfo[2].show, 'in')
result = range_text(range[1], want_name, parms, result, prefix2 .. valinfo[2].show, 'in', {spaced=true})
end
end
return preunit .. result
return preunit .. result
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local range = parms.range
local range = parms.range
if range and not add_unit then
if range and not add_unit then
linked_pages[first_unit] = nil  -- so the final and only id will be linked, if wanted
unlink(first_unit)
end
end
local id = range and make_id(parms, range.n + 1, first_unit) or id1
local id = range and make_id(parms, range.n + 1, first_unit) or id1
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-- Processing required for each output unit.
-- Processing required for each output unit.
-- Return block of text to represent output (value/unit).
-- Return block of text to represent output (value/unit).
local inout = out_current.inout  -- normally 'out' but can be 'in' for order=out
local id1, want_name = make_id(parms, 1, out_current)
local id1, want_name = make_id(parms, 1, out_current)
local sep = out_current.sep  -- set by make_id
local sep = out_current.sep  -- set by make_id
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if range then
if range then
-- For simplicity and because more not needed, handle one range item only.
-- For simplicity and because more not needed, handle one range item only.
result = range_text(range[1], want_name, parms, result, prefix .. valinfo[2].show, 'out')
result = range_text(range[1], want_name, parms, result, prefix .. valinfo[2].show, inout, {spaced=true})
end
end
return preunit .. result
return preunit .. result
3,195行目: 3,374行目:
local range = parms.range
local range = parms.range
if range and not add_unit then
if range and not add_unit then
linked_pages[out_current] = nil  -- so the final and only id will be linked, if wanted
unlink(out_current)
end
end
local id = range and make_id(parms, range.n + 1, out_current) or id1
local id = range and make_id(parms, range.n + 1, out_current) or id1
local extra, was_hyphenated = hyphenated_maybe(parms, want_name, sep, id, 'out')
local extra, was_hyphenated = hyphenated_maybe(parms, want_name, sep, id, inout)
if was_hyphenated then
if was_hyphenated then
add_unit = false
add_unit = false
3,219行目: 3,398行目:
result = show
result = show
else
else
result = range_text(range[i], want_name, parms, result, show, 'out')
result = range_text(range[i], want_name, parms, result, show, inout)
end
end
end
end
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-- for a single output (which is not a combination or a multiple);
-- for a single output (which is not a combination or a multiple);
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
out_unit_table.valinfo = collection()
if parms.opt_order_out and in_unit_table.unitcode == out_unit_table.unitcode then
local range = parms.range
out_unit_table.valinfo = in_unit_table.valinfo
for i = 1, (range and (range.n + 1) or 1) do
else
local success, info = cvtround(parms, in_unit_table.valinfo[i], in_unit_table, out_unit_table)
out_unit_table.valinfo = collection()
if not success then return false, info end
for _, v in ipairs(in_unit_table.valinfo) do
out_unit_table.valinfo:add(info)
local success, info = cvtround(parms, v, in_unit_table, out_unit_table)
if not success then return false, info end
out_unit_table.valinfo:add(info)
end
end
end
return true, process_one_output(parms, out_unit_table)
return true, process_one_output(parms, out_unit_table)
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-- for an output which is a multiple (like 'ftin');
-- for an output which is a multiple (like 'ftin');
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
local inout = out_unit_table.inout  -- normally 'out' but can be 'in' for order=out
local multiple = out_unit_table.multiple  -- table of scaling factors (will not be nil)
local multiple = out_unit_table.multiple  -- table of scaling factors (will not be nil)
local combos = out_unit_table.combination  -- table of unit tables (will not be nil)
local combos = out_unit_table.combination  -- table of unit tables (will not be nil)
3,256行目: 3,439行目:
local disp = parms.disp
local disp = parms.disp
local want_name = (abbr_org == nil and (disp == 'or' or disp == 'slash')) or
local want_name = (abbr_org == nil and (disp == 'or' or disp == 'slash')) or
not (abbr == 'on' or abbr == 'out' or abbr == 'mos')
not (abbr == 'on' or abbr == inout or abbr == 'mos')
local want_link = (parms.lk == 'on' or parms.lk == 'out')
local want_link = (parms.lk == 'on' or parms.lk == inout)
local mid = parms.opt_flip and parms.mid or ''
local mid = parms.opt_flip and parms.mid or ''
local sep1 = '&nbsp;'
local sep1 = '&nbsp;'
3,273行目: 3,456行目:
local tfrac, thisvalue, strforce
local tfrac, thisvalue, strforce
local out_current = combos[i]
local out_current = combos[i]
out_current.inout = 'out'
out_current.inout = inout
local scale = multiple[i]
local scale = multiple[i]
if i == 1 then  -- least significant unit ('in' from 'ftin')
if i == 1 then  -- least significant unit ('in' from 'ftin')
3,355行目: 3,538行目:
end
end
local strval
local strval
local inout = (i == #combos or outvalue == 0) and 'out' or ''  -- trick so the last value processed (first displayed) has uppercase, if requested
local spell_inout = (i == #combos or outvalue == 0) and inout or ''  -- trick so the last value processed (first displayed) has uppercase, if requested
if strforce and outvalue == 0 then
if strforce and outvalue == 0 then
sign = ''  -- any sign is in strforce
sign = ''  -- any sign is in strforce
3,361行目: 3,544行目:
elseif tfrac then
elseif tfrac then
local wholestr = (thisvalue > 0) and tostring(thisvalue) or nil
local wholestr = (thisvalue > 0) and tostring(thisvalue) or nil
strval = format_fraction(parms, inout, false, wholestr, tfrac.numstr, tfrac.denstr, do_spell)
strval = format_fraction(parms, spell_inout, false, wholestr, tfrac.numstr, tfrac.denstr, do_spell)
else
else
strval = (thisvalue == 0) and from_en('0') or with_separator(parms, format(fmt, thisvalue))
strval = (thisvalue == 0) and from_en('0') or with_separator(parms, format(fmt, thisvalue))
if do_spell then
if do_spell then
strval = spell_number(parms, inout, strval) or strval
strval = spell_number(parms, spell_inout, strval) or strval
end
end
end
end
3,388行目: 3,571行目:
local success, result2 = make_result(valinfo[i+1])
local success, result2 = make_result(valinfo[i+1])
if not success then return false, result2 end
if not success then return false, result2 end
result = range_text(range[i], want_name, parms, result, result2, 'out')
result = range_text(range[i], want_name, parms, result, result2, inout, {spaced=true})
end
end
end
end
3,395行目: 3,578行目:


local function process(parms, in_unit_table, out_unit_table)
local function process(parms, in_unit_table, out_unit_table)
-- Return true, s where s = final wikitext result,
-- Return true, s, outunit where s = final wikitext result,
-- or return false, t where t is an error message table.
-- or return false, t where t is an error message table.
linked_pages = {}
linked_pages = {}
local success, bad_output
local success, bad_output
local bad_input_mcode = in_unit_table.bad_mcode  -- false if input unit is valid
local bad_input_mcode = in_unit_table.bad_mcode  -- nil if input unit is a valid convert unit
local invalue1 = in_unit_table.valinfo[1].value
local out_unit = parms.out_unit
local out_unit = parms.out_unit
if out_unit == nil or out_unit == '' then
if out_unit == nil or out_unit == '' or type(out_unit) == 'function' then
if bad_input_mcode or parms.opt_input_unit_only then
if bad_input_mcode or parms.opt_input_unit_only then
bad_output = ''
bad_output = ''
else
else
success, out_unit = get_default(invalue1, in_unit_table)
local getdef = type(out_unit) == 'function' and out_unit or get_default
success, out_unit = getdef(in_unit_table.valinfo[1].value, in_unit_table)
parms.out_unit = out_unit
parms.out_unit = out_unit
if not success then
if not success then
3,424行目: 3,607行目:
end
end
end
end
local lhs, rhs
local flipped = parms.opt_flip and not bad_input_mcode
local flipped = parms.opt_flip and not bad_input_mcode
local parts = {}
if bad_output then
for part = 1, 2 do
rhs = (bad_output == '') and '' or message(parms, bad_output)
-- The LHS (parts[1]) is normally the input, but is the output if flipped.
elseif parms.opt_input_unit_only then
-- Process LHS first so it will be linked, if wanted.
rhs = ''
-- Linking to the same item is suppressed in the RHS to avoid overlinking.
else
if (part == 1 and not flipped) or (part == 2 and flipped) then
local combos  -- nil (for 'ft' or 'ftin'), or table of unit tables (for 'm ft')
parts[part] = process_input(parms, in_unit_table)
if not out_unit_table.multiple then  -- nil/false ('ft' or 'm ft'), or table of factors ('ftin')
elseif bad_output then
combos = out_unit_table.combination
parts[part] = (bad_output == '') and '' or message(bad_output)
end
else
local frac = parms.frac  -- nil or denominator of fraction for output values
local outputs = {}
if frac then
local combos  -- nil (for 'ft' or 'ftin'), or table of unit tables (for 'm ft')
-- Apply fraction to the unit (if only one), or to non-SI units (if a combination),
if not out_unit_table.multiple then  -- nil/false ('ft' or 'm ft'), or table of factors ('ftin')
-- except that if a precision is also specified, the fraction only applies to
combos = out_unit_table.combination
-- the hand unit; that allows the following result:
end
-- {{convert|156|cm|in hand|1|frac=2}} → 156 centimetres (61.4 in; 15.1½ hands)
local frac = parms.frac  -- nil or denominator of fraction for output values
-- However, the following is handled elsewhere as a special case:
if frac then
-- {{convert|156|cm|hand in|1|frac=2}} → 156 centimetres (15.1½ hands; 61½ in)
-- Apply fraction to the unit (if only one), or to non-SI units (if a combination),
if combos then
-- except that if a precision is also specified, the fraction only applies to
local precision = parms.precision
-- the hand unit; that allows the following result:
for _, unit in ipairs(combos) do
-- {{convert|156|cm|in hand|1|frac=2}} → 156 centimetres (61.4 in; 15.1½ hands)
if unit.builtin == 'hand' or (not precision and not unit.prefixes) then
-- However, the following is handled elsewhere as a special case:
unit.frac = frac
-- {{convert|156|cm|hand in|1|frac=2}} → 156 centimetres (15.1½ hands; 61½ in)
if combos then
local precision = parms.precision
for _, unit in ipairs(combos) do
if unit.builtin == 'hand' or (not precision and not unit.prefixes) then
unit.frac = frac
end
end
end
else
out_unit_table.frac = frac
end
end
else
out_unit_table.frac = frac
end
end
local out_first
end
local imax = combos and #combos or 1  -- 1 (single unit) or number of unit tables
local outputs = {}
for i = 1, imax do
local imax = combos and #combos or 1  -- 1 (single unit) or number of unit tables
local success, item
if imax == 1 then
local out_current = combos and combos[i] or out_unit_table
parms.opt_order_out = nil  -- only useful with an output combination
out_current.inout = 'out'
end
if i == 1 then
if not flipped and not parms.opt_order_out then
out_first = out_current
-- Process left side first so any duplicate links (from lk=on) are suppressed
if imax > 1 and out_current.builtin == 'hand' then
-- on right. Example: {{convert|28|e9pc|e9ly|abbr=off|lk=on}}
out_current.out_next = combos[2]  -- built-in hand can influence next unit in a combination
lhs = process_input(parms, in_unit_table)
end
end
for i = 1, imax do
local success, item
local out_current = combos and combos[i] or out_unit_table
out_current.inout = 'out'
if i == 1 then
if imax > 1 and out_current.builtin == 'hand' then
out_current.out_next = combos[2]  -- built-in hand can influence next unit in a combination
end
end
if out_current.multiple then
if parms.opt_order_out then
success, item = make_output_multiple(parms, in_unit_table, out_current)
out_current.inout = 'in'
else
success, item = make_output_single(parms, in_unit_table, out_current)
end
end
if not success then return false, item end
table.insert(outputs, item)
end
end
if parms.opt_input_unit_only then
if out_current.multiple then
parts[part] = ''
success, item = make_output_multiple(parms, in_unit_table, out_current)
else
else
local sep = parms.table_joins and parms.table_joins[2] or parms.join_between
success, item = make_output_single(parms, in_unit_table, out_current)
parts[part] = table.concat(outputs, sep)
end
end
if not success then return false, item end
outputs[i] = item
end
if parms.opt_order_out then
lhs = outputs[1]
table.remove(outputs, 1)
end
local sep = parms.table_joins and parms.table_joins[2] or parms.join_between
rhs = table.concat(outputs, sep)
end
if flipped or not lhs then
local input = process_input(parms, in_unit_table)
if flipped then
lhs = rhs
rhs = input
else
lhs = input
end
end
end
end
if parms.join_before then
if parms.join_before then
parts[1] = parms.join_before .. parts[1]
lhs = parms.join_before .. lhs
end
end
local wikitext
local wikitext
if bad_input_mcode then
if bad_input_mcode then
if bad_input_mcode == '' then
if bad_input_mcode == '' then
wikitext = parts[1]
wikitext = lhs
else
else
wikitext = parts[1] .. message(bad_input_mcode)
wikitext = lhs .. message(parms, bad_input_mcode)
end
end
elseif parms.table_joins then
elseif parms.table_joins then
wikitext = parms.table_joins[1] .. parts[1] .. parms.table_joins[2] .. parts[2]
wikitext = parms.table_joins[1] .. lhs .. parms.table_joins[2] .. rhs
else
else
wikitext = parts[1] .. parms.joins[1] .. parts[2] .. parms.joins[2]
wikitext = lhs .. parms.joins[1] .. rhs .. parms.joins[2]
end
end
if parms.warnings and not bad_input_mcode then
if parms.warnings and not bad_input_mcode then
wikitext = wikitext .. parms.warnings
wikitext = wikitext .. parms.warnings
end
end
return true, wikitext, out_unit_table
return true, get_styles(parms) .. wikitext, out_unit_table
end
end


local function main_convert(frame)
local function main_convert(frame)
-- Do convert, and if needed, do it again with higher default precision.
-- Do convert, and if needed, do it again with higher default precision.
local parms = { frame = frame }  -- will hold template arguments, after translation
set_config(frame.args)
set_config(frame.args)
local result, out_unit_table
local success, result = get_parms(parms, frame:getParent().args)
local success, parms, in_unit_table = get_parms(frame:getParent().args)
if success then
if success then
for i = 1, 2 do  -- use counter so cannot get stuck repeating convert
if type(result) ~= 'table' then
return tostring(result)
end
local in_unit_table = result
local out_unit_table
for _ = 1, 2 do  -- use counter so cannot get stuck repeating convert
success, result, out_unit_table = process(parms, in_unit_table, out_unit_table)
success, result, out_unit_table = process(parms, in_unit_table, out_unit_table)
if success and parms.do_convert_again then
if success and parms.do_convert_again then
3,522行目: 3,723行目:
end
end
end
end
else
result = parms
end
end
if success then
-- If input=x gives a problem, the result should be just the user input
return result
-- (if x is a property like P123 it has been replaced with '').
-- An unknown input unit would display the input and an error message
-- with success == true at this point.
-- Also, can have success == false with a message that outputs an empty string.
if parms.input_text then
if success and not parms.have_problem then
return result
end
local cat
if parms.tracking then
-- Add a tracking category using the given text as the category sort key.
-- There is currently only one type of tracking, but in principle multiple
-- items could be tracked, using different sort keys for convenience.
cat = wanted_category('tracking', parms.tracking)
end
return parms.input_text .. (cat or '')
end
end
return message(result)
return success and result or message(parms, result)
end
end


3,569行目: 3,783行目:
opt_sortable_debug = options.sort == 'debug',
opt_sortable_debug = options.sort == 'debug',
}
}
local utable
if options.si then
if options.si then
-- Make a dummy table of units (just one unit) for lookup to use.
-- Make a dummy table of units (just one unit) for lookup to use.
-- This makes lookup recognize any SI prefix in the unitcode.
-- This makes lookup recognize any SI prefix in the unitcode.
local symbol = options.si[1] or '?'
local symbol = options.si[1] or '?'
utable = { [symbol] = {
parms.unittable = { [symbol] = {
_name1 = symbol,
_name1 = symbol,
_name2 = symbol,
_name2 = symbol,
3,585行目: 3,798行目:
}}
}}
end
end
local success, unit_table = lookup(parms, unitcode, 'no_combination', utable)
local success, unit_table = lookup(parms, unitcode, 'no_combination')
if not success then
if not success then
unit_table = setmetatable({
unit_table = setmetatable({
symbol = unitcode, name2 = unitcode,
symbol = unitcode, name2 = unitcode, utype = unitcode,
default = "m", defkey = "m", linkey = "m",
scale = 1, default = '', defkey = '', linkey = '' }, unit_mt)
utype = "length", scale = 1 }, unit_mt)
end
end
local value = tonumber(options.value) or 1
local value = tonumber(options.value) or 1
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