 | This Lua module is used on approximately 486,000 pages, or roughly 2624% of all pages. To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them. |
 | This module depends on the following other modules: |
| Related pages |
|---|
About
{{Category series navigation}} is intended to be a minimal-input, near-universal template for automatically navigating most numerically adjacent categories.
| Type | Example category | BC(E)? | Example output | |
|---|---|---|---|---|
| Season | 2001–02 FA Cup | No | Lua error: too many expensive function calls. | |
| TV season | Futurama (season 1) episodes | – | Lua error: too many expensive function calls. | |
| Office term (regular) | MEPs 2004–2009 | No | Lua error: too many expensive function calls. | |
| Office term (irregular) | Wales AMs 2003–2007 | No | Lua error: too many expensive function calls. | |
| Numerical range | Taxonbars with 30–34 taxon IDs | – |
| |
| Decade | 1990s in Scotland | BC | Lua error: too many expensive function calls. | |
| Year | 1999 in Scotland | BC(E) | Lua error: too many expensive function calls. | |
| Year (auto-condensed) | Candidates in the 2000 US presidential election | – | Lua error: too many expensive function calls. | |
Year (|skip-gaps=yes) |
Amusement parks opened in 1880 | – | Lua error: too many expensive function calls. | |
| Ordinal (temporal) | 2nd-century rabbis | BC(E) | Lua error: too many expensive function calls. | |
| Ordinal (numeric) | 9th Lok Sabha | – | Lua error: too many expensive function calls. | |
| Ordinal (word) | First Dynasty of Egypt | – | Lua error: too many expensive function calls. | |
| Roman numeral | Deputies of Legislature X of the Kingdom of Italy | – | Lua error: too many expensive function calls. | |
| Mixed decade | 1760s in the Province of Quebec (1763–1791) | – | Lua error: too many expensive function calls. | |
| Mixed year | 1778 establishments in the Province of Quebec (1763–1791) | – | Lua error: too many expensive function calls. | |
Searching behavior
Most multi-year seasons/office terms/numerical ranges are acceptable, as long as the season duration/term length/range size is <= 10, and the gap between seasons is <= 6. For series exceeding either of these criteria, see/use {{Irregular chronology category navigation}}.
The length of each season is automatically determined from the originating category name, up to and including 10 years. MOS:DATERANGE compliance is preferred, but some deviation is allowed and tracked for regular series with seasons > 1 year long. {{Category redirect}}s are followed, and tracked for either MOS contravention (to be corrected) or for navigational aid (no error). The gap size between successive seasons is also automatically determined, up to and including 6 years, and defaults to 0 (e.g. 1995–96 → 1996–97).
Automatically condensed years are supported for presidential categories only (but can be easily expanded as needed), for gaps up to and including 5 years, and defaults to 1. To skip gaps of up to 25 years in any year categories, use |skip-gaps=yes.
Limitations
Numerical limitations and AD/BC/E
- Season/office term categories do not work for any years BC, which will be hidden, because no working examples were found.
- Decade categories recognize BC, but not BCE, because no working examples were found.
- Ordinal & numeral words do not work above the ninety-ninth & ninety-nine, because no working examples were found.
Condensation
- Automatically condensed Olympics display is not supported due to peculiarities; use {{Winter Olympics by year category navigation}}, etc., instead.
- Automatically condensed years are supported for presidential categories only, due to their consistency; use
|skip-gaps=yesas desired elsewhere.
Work-arounds
- Base-name changes: create at least 2 logically numbered {{R from category navigation}} (1 backward & 1 forward), to join both related series.
- Unaccounted-for name+number conventions: where a fixed number is part of the prefix or suffix text, e.g. Chapter 11 bankruptcies, a non-breaking space may force the template to work. See this fix, where {{title year}} skipped over 11 as part of a word rather than a discrete number. (This case has been accounted for and is no longer required in this example.)
- General: for large, permanent gaps† between successive categories, use {{Succeeding category}}, {{Preceding category}}, {{Category pair}}, as needed, in addition to {{Category series navigation}} on both sides, or in the middle, of the gap. Even if {{Category series navigation}} is isolated, it has the benefit of confirming the absence of nearby categories to the reader or maintainer.
†Permanent gaps, where there is a confirmed permanent absence of data, and not just a temporary, yet to be filled, gap on OODA WIKI.
Related CfDs
- OODA WIKI:Categories for discussion/Log/2019 June 8#Category:Northern Ireland MLAs 2016–17
- OODA WIKI:Categories for discussion/Log/2019 May 29#Category:MEPs 1952–58
- OODA WIKI:Categories for discussion/Log/2019 April 19#Category:Aircraft piston engines 1900–1909
Usage
- Typical usage
- Specify a minimum and/or maximum year to display
{{Category series navigation|min=-100}}{{Category series navigation|min=100 BC}}{{Category series navigation|min=1753|max=1810}}{{Category series navigation|max=2025}}
- To skip gaps in year categories
{{Category series navigation|skip-gaps=yes}}
- To not automatically follow {{Category redirect}}s
{{Category series navigation|follow-redirects=no}}
- Exceptional cases
{{Category series navigation|cat=2010s albums}}— to behave as if placed on|cat=; consider using {{Category pair}} instead of|cat=
Testing & debugging
To test the output of the template on a particular category name, use the |testcase= parameter, and |testcasegap= if necessary:
{{Category series navigation|testcase=1770s in the Province of Quebec (1763–1791)|min=1760}}→
Lua error: too many expensive function calls.
{{Category series navigation|testcase=1770s in the Province of Quebec (1763–1791)|max=1970s}}→
Lua error: too many expensive function calls.
To see all links produced and/or tested, and what effect each has on their display, use |list-all-links=yes:
{{Category series navigation|testcase=Nations at the 2013 World Athletics Championships|min=2008|skip-gaps=yes|list-all-links=yes}}→
- Category:Nations at the 2006 World Athletics Championships (2006) ()
- Category:Nations at the 2007 World Athletics Championships (2007) ()
- Category:Nations at the 2008 World Athletics Championships (2008)
- Category:Nations at the 2008–2009 World Athletics Championships (2008–2009) (tried; not displayed)2
- Category:Nations at the 2008–09 World Athletics Championships (2008–09) (tried; not displayed)4
- Category:Nations at the 2009 World Athletics Championships → Category:Nations at the 2009 World Championships in Athletics (2009)
- Category:Nations at the 2011 World Athletics Championships → Category:Nations at the 2011 World Championships in Athletics (2011)
- Category:Nations at the 2015 World Athletics Championships → Category:Nations at the 2015 World Championships in Athletics (2015)
- Category:Nations at the 2017 World Athletics Championships → Category:Nations at the 2017 World Championships in Athletics (2017)
- Category:Nations at the 2019 World Athletics Championships (2019)
- Category:Nations at the 2020 World Athletics Championships (2020)
- Category:Nations at the 2020–2021 World Athletics Championships (2020–2021) (tried; not displayed)2
- Category:Nations at the 2020–21 World Athletics Championships (2020–21) (tried; not displayed)4
- Category:Nations at the 2021 World Athletics Championships (2021)
- Category:Nations at the 2021–2022 World Athletics Championships (2021–2022) (tried; not displayed)2
- Category:Nations at the 2021–22 World Athletics Championships (2021–22) (tried; not displayed)4
- All possible element types are shown above (blue, red/grey, hidden, and redirect), and would otherwise display as:
Tracking categories
If the template encounters an issue, it displays an error message and/or places the category into one or more of the following tracking categories:
Maintenance required
- Category:Category series navigation failed to generate navbox (0)
- Category:Category series navigation redirection error (0)
- Category:Category series navigation range abbreviated (MOS) (0)
- Category:Category series navigation range redirected (MOS) (0)
- Category:Category series navigation range ends (blank, MOS) (0)
- Category:Category series navigation range not using en dash (0)
- Category:Category series navigation in mainspace (0)
Maintenance possible
- Category:Category series navigation isolated (0)
- Category:Category series navigation default season gap size (0)
- Category:Category series navigation using cat parameter (0)
- Category:Category series navigation using testcase parameter (0)
- Category:Category series navigation using unknown parameter (0)
Module maintenance possible
Tracking only
- Category:Category series navigation range redirected (base change) (0)
- Category:Category series navigation range redirected (var change) (0)
- Category:Category series navigation range redirected (end) (0)
- Category:Category series navigation range gaps (0)
- Category:Category series navigation range irregular (0)
- Category:Category series navigation range irregular, 0-length (0)
- Category:Category series navigation range ends (present) (0)
- Category:Category series navigation TV season redirected (0)
- Category:Category series navigation decade redirected (0)
- Category:Category series navigation year redirected (base change) (0)
- Category:Category series navigation year redirected (var change) (0)
- Category:Category series navigation roman numeral redirected (0)
- Category:Category series navigation nordinal redirected (0)
- Category:Category series navigation wordinal redirected (0)
- Category:Category series navigation using skip-gaps parameter (0)
- Category:Category series navigation year and range (0)
- Category:Category series navigation year and decade (0)
- Category:Category series navigation decade and century (0)
See also
- {{Irregular chronology category navigation}}—for use on categories
- {{Irregular series navigation}}—for use outside categories
- {{Year by category}}
- {{R from category navigation}}
require('strict')
local p = {}
local horizontal = require('Module:List').horizontal
--[[==========================================================================]]
--[[ Globals ]]
--[[==========================================================================]]
local currtitle = mw.title.getCurrentTitle()
local nexistingcats = 0
local errors = ''
local testcasecolon = ''
local testcases = string.match(currtitle.subpageText, '^testcases')
if testcases then testcasecolon = ':' end
local navborder = true
local followRs = true
local skipgaps = false
local skipgaps_limit = 25
local term_limit = 10
local hgap_limit = 6
local ygap_limit = 5
local listall = false
local tlistall = {}
local tlistallbwd = {}
local tlistallfwd = {}
local ttrackingcats = { --when reindexing, Ctrl+H 'trackcat(13,' & 'ttrackingcats[16]'
'', -- [1] placeholder for [[Category:Category series navigation using cat parameter]]
'', -- [2] placeholder for [[Category:Category series navigation using testcase parameter]]
'', -- [3] placeholder for [[Category:Category series navigation using unknown parameter]]
'', -- [4] placeholder for [[Category:Category series navigation range not using en dash]]
'', -- [5] placeholder for [[Category:Category series navigation range abbreviated (MOS)]]
'', -- [6] placeholder for [[Category:Category series navigation range redirected (base change)]]
'', -- [7] placeholder for [[Category:Category series navigation range redirected (var change)]]
'', -- [8] placeholder for [[Category:Category series navigation range redirected (end)]]
'', -- [9] placeholder for [[Category:Category series navigation range redirected (MOS)]]
'', --[10] placeholder for [[Category:Category series navigation range redirected (other)]]
'', --[11] placeholder for [[Category:Category series navigation range gaps]]
'', --[12] placeholder for [[Category:Category series navigation range irregular]]
'', --[13] placeholder for [[Category:Category series navigation range irregular, 0-length]]
'', --[14] placeholder for [[Category:Category series navigation range ends (present)]]
'', --[15] placeholder for [[Category:Category series navigation range ends (blank, MOS)]]
'', --[16] placeholder for [[Category:Category series navigation isolated]]
'', --[17] placeholder for [[Category:Category series navigation default season gap size]]
'', --[18] placeholder for [[Category:Category series navigation decade redirected]]
'', --[19] placeholder for [[Category:Category series navigation year redirected (base change)]]
'', --[20] placeholder for [[Category:Category series navigation year redirected (var change)]]
'', --[21] placeholder for [[Category:Category series navigation year redirected (other)]]
'', --[22] placeholder for [[Category:Category series navigation roman numeral redirected]]
'', --[23] placeholder for [[Category:Category series navigation nordinal redirected]]
'', --[24] placeholder for [[Category:Category series navigation wordinal redirected]]
'', --[25] placeholder for [[Category:Category series navigation TV season redirected]]
'', --[26] placeholder for [[Category:Category series navigation using skip-gaps parameter]]
'', --[27] placeholder for [[Category:Category series navigation year and range]]
'', --[28] placeholder for [[Category:Category series navigation year and decade]]
'', --[29] placeholder for [[Category:Category series navigation decade and century]]
'', --[30] placeholder for [[Category:Category series navigation in mainspace]]
'', --[31] placeholder for [[Category:Category series navigation redirection error]]
}
local avoidself = (not string.match(currtitle.text, 'Category series navigation with') and
not string.match(currtitle.text, 'Category series navigation.*/doc') and
not string.match(currtitle.text, 'Category series navigation.*/sandbox') and
currtitle.text ~= 'Category series navigation' and
currtitle.nsText ~= 'User_talk' and
currtitle.nsText ~= 'Template_talk' and
(currtitle.nsText ~= 'Template' or testcases)) --avoid nested transclusion errors (i.e. {{Infilmdecade}})
--[[==========================================================================]]
--[[ Utility & category functions ]]
--[[==========================================================================]]
--Determine if a category exists (in a function for easier localization).
local function catexists( title )
return mw.title.new( title, 'Category' ).exists
end
--Error message handling.
function p.errorclass( msg )
return mw.text.tag( 'span', {class='error mw-ext-cite-error'}, '<b>Error!</b> '..string.gsub(msg, '&#', '&#') )
end
--Failure handling.
function p.failedcat( errors, sortkey )
if avoidself then
return (errors or '')..'***Category series navigation failed to generate navbox***'..
'[['..testcasecolon..'Category:Category series navigation failed to generate navbox|'..(sortkey or 'O')..']]\n'
end
return ''
end
--Tracking cat handling.
-- key: 15 (when reindexing ttrackingcats{}, Ctrl+H 'trackcat(13,' & 'ttrackingcats[16]')
-- cat: 'Category series navigation isolated'; '' to remove
--Used by main, all nav_*(), & several utility functions.
local function trackcat( key, cat )
if avoidself and key and cat then
if cat ~= '' then
ttrackingcats[key] = '[['..testcasecolon..'Category:'..cat..']]'
else
ttrackingcats[key] = ''
end
end
return
end
--Check for unknown parameters.
--Used by main only.
local function checkforunknownparams( tbl )
local knownparams = { --parameter whitelist
['min'] = 'min',
['max'] = 'max',
['cat'] = 'cat',
['show'] = 'show',
['testcase'] = 'testcase',
['testcasegap'] = 'testcasegap',
['skip-gaps'] = 'skip-gaps',
['list-all-links'] = 'list-all-links',
['follow-redirects'] = 'follow-redirects',
}
for k, _ in pairs (tbl) do
if knownparams[k] == nil then
trackcat(3, 'Category series navigation using unknown parameter')
break
end
end
end
--Check for nav_*() navigational isolation (not necessarily an error).
--Used by all nav_*().
local function isolatedcat()
if nexistingcats == 0 then
trackcat(16, 'Category series navigation isolated')
end
end
--Returns the target of {{Category redirect}}, if it exists, else returns the original cat.
--{{Title year}}, etc., if found, are evaluated.
--Used by catlinkfollowr(), and so indirectly by all nav_*().
local function rtarget( frame, cat )
local catcontent = mw.title.new( cat or '', 'Category' ):getContent()
if string.match( catcontent or '', '{{ *[Cc]at' ) then --prelim test
local getRegex = require('Module:Template redirect regex').main
local tregex = getRegex('Category redirect')
for _, v in pairs (tregex) do
local rtarget = mw.ustring.match( catcontent, v..'%s*|%s*([^|}]+)' )
if rtarget then
if string.match(rtarget, '{{') then --{{Title year}}, etc., exists; evaluate
local regex_ty = '%s*|%s*([^{}]*{{([^{|}]+)}}[^{}]-)%s*}}' --eval null-param templates only; expanded if/as needed
local rtarget_orig, ty = mw.ustring.match( catcontent, v..regex_ty )
if rtarget_orig then
local ty_eval = frame:expandTemplate{ title = ty, args = { page = cat } } --frame:newChild doesn't work, use 'page' param instead
local rtarget_eval = mw.ustring.gsub(rtarget_orig, '{{%s*'..ty..'%s*}}', ty_eval )
return rtarget_eval
else --sub-parameters present; track & return default
trackcat(31, 'Category series navigation redirection error')
end
end
rtarget = mw.ustring.gsub(rtarget, '^1%s*=%s*', '')
rtarget = string.gsub(rtarget, '^[Cc]ategory:', '')
return rtarget
end
end --for
end --if
return cat
end
--Similar to {{LinkCatIfExists2}}: make a piped link to a category, if it exists;
--if it doesn't exist, just display the greyed link title without linking.
--Follows {{Category redirect}}s.
--Returns {
-- ['cat'] = cat,
-- ['catexists'] = true,
-- ['rtarget'] = <#R target>,
-- ['navelement'] = <#R target navelement>,
-- ['displaytext'] = displaytext,
-- }
-- if #R followed;
--returns {
-- ['cat'] = cat,
-- ['catexists'] = <true|false>,
-- ['rtarget'] = nil,
-- ['navelement'] = <cat navelement>,
-- ['displaytext'] = displaytext,
-- }
-- otherwise.
--Used by all nav_*().
local function catlinkfollowr( frame, cat, displaytext, displayend )
cat = mw.text.trim(cat or '')
displaytext = mw.text.trim(displaytext or '')
displayend = displayend or false --bool flag to override displaytext IIF the cat/target is terminal (e.g. "2021–present" or "2021–")
local grey = '#888'
local disp = cat
if displaytext ~= '' then --use 'displaytext' parameter if present
disp = mw.ustring.gsub(displaytext, '%s+%(.+$', ''); --strip any trailing disambiguator
end
local link, nilorR
local exists = catexists(cat)
if exists then
nexistingcats = nexistingcats + 1
if followRs then
local R = rtarget(frame, cat) --find & follow #R
if R ~= cat then --#R followed
nilorR = R
end
if displayend then
local y, hyph, ending = mw.ustring.match(R, '^.-(%d+)([–-])(.*)$')
if ending == 'present' then
disp = y..hyph..ending
elseif ending == '' then
disp = y..hyph..'<span style="visibility:hidden">'..y..'</span>' --hidden y to match spacing
end
end
link = '[[:Category:'..R..'|'..disp..']]'
else
link = '[[:Category:'..cat..'|'..disp..']]'
end
else
link = '<span style="color:'..grey..'">'..disp..'</span>'
end
if listall then
if nilorR then --#R followed
table.insert( tlistall, '[[:Category:'..cat..']] → '..'[[:Category:'..nilorR..']] ('..link..')' )
else --no #R
table.insert( tlistall, '[[:Category:'..cat..']] ('..link..')' )
end
end
return {
['cat'] = cat,
['catexists'] = exists,
['rtarget'] = nilorR,
['navelement'] = link,
['displaytext'] = disp,
}
end
--Returns a numbered list of all {{Category redirect}}s followed by catlinkfollowr() -> rtarget().
--For a nav_hyphen() cat, also returns a formatted list of all cats searched for & found, & all loop indices.
--Used by all nav_*().
local function listalllinks()
local nl = '\n# '
local out = ''
if currtitle.nsText == 'Category' then
errors = p.errorclass('The <b><code>|list-all-links=yes</code></b> parameter/utility '..
'should not be saved in category space, only previewed.')
out = p.failedcat(errors, 'Z')
end
local bwd, fwd = '', ''
if tlistallbwd[1] then
bwd = '\n\nbackward search:'..nl..table.concat(tlistallbwd, nl)
end
if tlistallfwd[1] then
fwd = '\n\nforward search:'..nl..table.concat(tlistallfwd, nl)
end
if tlistall[1] then
return out..nl..table.concat(tlistall, nl)..bwd..fwd
else
return out..nl..'No links found!?'..bwd..fwd
end
end
--Returns the difference b/w 2 ints separated by endash|hyphen, nil if error.
--Used by nav_hyphen() only.
local function find_duration( cat )
local from, to = mw.ustring.match(cat, '(%d+)[–-](%d+)')
if from and to then
if to == '00' then return nil end --doesn't follow MOS:DATERANGE
if (#from == 4) and (#to == 2) then --1900-01
to = string.match(from, '(%d%d)%d%d')..to --1900-1901
elseif (#from == 2) and (#to == 4) then -- 01-1902
from = string.match(to, '(%d%d)%d%d')..from --1901-1902
end
return (tonumber(to) - tonumber(from))
end
return 0
end
--Returns the ending of a terminal cat, and sets the appropriate tracking cat, else nil.
--Used by nav_hyphen() only.
local function find_terminaltxt( cat )
local terminaltxt = nil
if mw.ustring.match(cat, '%d+[–-]present$') then
terminaltxt = 'present'
trackcat(14, 'Category series navigation range ends (present)')
elseif mw.ustring.match(cat, '%d+[–-]$') then
terminaltxt = ''
trackcat(15, 'Category series navigation range ends (blank, MOS)')
end
return terminaltxt
end
--Returns an unsigned string of the 1-4 digit decade ending in "0", else nil.
--Used by nav_decade() only.
local function sterilizedec( decade )
if decade == nil or decade == '' then
return nil
end
local dec = string.match(decade, '^[-%+]?(%d?%d?%d?0)$') or
string.match(decade, '^[-%+]?(%d?%d?%d?0)%D')
if dec then
return dec
else
--fix 2-4 digit decade
local decade_fixed234 = string.match(decade, '^[-%+]?(%d%d?%d?)%d$') or
string.match(decade, '^[-%+]?(%d%d?%d?)%d%D')
if decade_fixed234 then
return decade_fixed234..'0'
end
--fix 1-digit decade
local decade_fixed1 = string.match(decade, '^[-%+]?(%d)$') or
string.match(decade, '^[-%+]?(%d)%D')
if decade_fixed1 then
return '0'
end
--unfixable
return nil
end
end
--Check for nav_hyphen default gap size + isolatedcat() (not necessarily an error).
--Used by nav_hyphen() only.
local function defaultgapcat( bool )
if bool and nexistingcats == 0 then
--using "nexistingcats > 0" isn't as useful, since the default gap size obviously worked
trackcat(17, 'Category series navigation default season gap size')
end
end
--12 -> 12th, etc.
--Used by nav_nordinal() & nav_wordinal().
function p.addord( i )
if tonumber(i) then
local s = tostring(i)
local tens = string.match(s, '1%d$')
if tens then return s..'th' end
local ones = string.match(s, '%d$')
if ones == '1' then return s..'st'
elseif ones == '2' then return s..'nd'
elseif ones == '3' then return s..'rd' end
return s..'th'
end
return i
end
--Returns the properly formatted central nav element.
--Expects an integer i, and a catlinkfollowr() table.
--Used by nav_decade() & nav_ordinal() only.
local function navcenter( i, catlink )
if i == 0 then --center nav element
if navborder == true then
return '<b>'..catlink.displaytext..'</b>'
else
return '<b>'..catlink.navelement..'</b>'
end
else
return catlink.navelement
end
end
--Return conditionally aligned stacked navs.
--Used by main only.
local function nav1nav2( nav1, nav2 )
if avoidself then
local forcealign = '<div style="display:block !important; max-width: calc(100% - 25em);">'
return forcealign..'\n'..nav1..'\n'..nav2..'\n</div>'
else
return nav1..'\n'..nav2
end
end
--[[==========================================================================]]
--[[ Formerly separated templates/modules ]]
--[[==========================================================================]]
--[[==========================={{ nav_hyphen }}=============================]]
local function nav_hyphen( frame, start, hyph, finish, firstpart, lastpart, minseas, maxseas, testgap )
--Expects a PAGENAME of the form "Some sequential 2015–16 example cat", where
-- start = 2015
-- hyph = –
-- finish = 16 (sequential years can be abbreviated, but others should be full year, e.g. "2001–2005")
-- firstpart = Some sequential
-- lastpart = example cat
-- minseas = 1800 ('min' starting season shown; optional; defaults to -9999)
-- maxseas = 2000 ('max' starting season shown; optional; defaults to 9999; 2000 will show 2000-01)
-- testgap = 0 (testcasegap parameter for easier testing; optional)
--sterilize start
if string.match(start or '', '^%d%d?%d?%d?$') == nil then --1-4 digits, AD only
local start_fixed = mw.ustring.match(start or '', '^%s*(%d%d?%d?%d?)%D')
if start_fixed then
start = start_fixed
else
errors = p.errorclass('Function nav_hyphen can\'t recognize the number "'..(start or '')..'" '..
'in the first part of the "season" that was passed to it. '..
'For e.g. "2015–16", "2015" is expected via "|2015|–|16|".')
return p.failedcat(errors, 'H')
end
end
local nstart = tonumber(start)
--en dash check
if hyph ~= '–' then
trackcat(4, 'Category series navigation range not using en dash') --nav still processable, but track
end
--sterilize finish & check for weird parents
local tgaps = {} --table of gap sizes found b/w terms { [<gap size found>] = 1 }
local ttlens = {} --table of term lengths found w/i terms { [<term length found>] = 1 }
local tirregs = {} --table of ir/regular-term-length cats' "from"s & "to"s found
local regularparent = true
if (finish == -1) or --"Members of the Scottish Parliament 2021–present"
(finish == 0) --"Members of the Scottish Parliament 2021–"
then
regularparent = false
if maxseas == nil or maxseas == '' then
maxseas = start --hide subsequent ranges
end
if finish == -1 then trackcat(14, 'Category series navigation range ends (present)')
else trackcat(15, 'Category series navigation range ends (blank, MOS)') end
elseif (start == finish) and
(ttrackingcats[16] ~= '') --nav_year found isolated; check for surrounding hyphenated terms (e.g. UK MPs 1974)
then
trackcat(16, '') --reset for another check later
trackcat(13, 'Category series navigation range irregular, 0-length')
ttlens[0] = 1 --calc ttlens for std cases below
regularparent = 'isolated'
end
if (string.match(finish or '', '^%d+$') == nil) and
(string.match(finish or '', '^%-%d+$') == nil)
then
local finish_fixed = mw.ustring.match(finish or '', '^%s*(%d%d?%d?%d?)%D')
if finish_fixed then
finish = finish_fixed
else
errors = p.errorclass('Function nav_hyphen can\'t recognize "'..(finish or '')..'" '..
'in the second part of the "season" that was passed to it. '..
'For e.g. "2015–16", "16" is expected via "|2015|–|16|".')
return p.failedcat(errors, 'I')
end
else
if string.len(finish) >= 5 then
errors = p.errorclass('The second part of the season passed to function nav_hyphen should only be four or fewer digits, not "'..(finish or '')..'". '..
'See [[MOS:DATERANGE]] for details.')
return p.failedcat(errors, 'J')
end
end
local nfinish = tonumber(finish)
--save sterilized parent range for easier lookup later
tirregs['from0'] = nstart
tirregs['to0'] = nfinish
--sterilize min/max
local nminseas_default = -9999
local nmaxseas_default = 9999
local nminseas = tonumber(minseas) or nminseas_default --same behavior as nav_year
local nmaxseas = tonumber(maxseas) or nmaxseas_default --same behavior as nav_year
if nminseas > nstart then nminseas = nstart end
if nmaxseas < nstart then nmaxseas = nstart end
local lspace = ' ' --assume a leading space (most common)
local tspace = ' ' --assume a trailing space (most common)
if string.match(firstpart, '%($') then lspace = '' end --DNE for "Madrid city councillors (2007–2011)"-type cats
if string.match(lastpart, '^%)') then tspace = '' end --DNE for "Madrid city councillors (2007–2011)"-type cats
--calculate term length/intRAseason size & finishing year
local t = 1
while t <= term_limit and regularparent == true do
local nish = nstart + t --use switchADBC to flip this sign to work for years BC, if/when the time comes
if (nish == nfinish) or (string.match(nish, '%d?%d$') == finish) then
ttlens[t] = 1
break
end
if t == term_limit then
errors = p.errorclass('Function nav_hyphen can\'t determine a reasonable term length for "'..start..hyph..finish..'".')
return p.failedcat(errors, 'K')
end
t = t + 1
end
--apply MOS:DATERANGE to parent
local lenstart = string.len(start)
local lenfinish = string.len(finish)
if lenstart == 4 and regularparent == true then --"2001–..."
if t == 1 then --"2001–02" & "2001–2002" both allowed
if lenfinish ~= 2 and lenfinish ~= 4 then
errors = p.errorclass('The second part of the season passed to function nav_hyphen should be two or four digits, not "'..finish..'".')
return p.failedcat(errors, 'L')
end
else --"2001–2005" is required for t > 1; track "2001–05"; anything else = error
if lenfinish == 2 then
trackcat(5, 'Category series navigation range abbreviated (MOS)')
elseif lenfinish ~= 4 then
errors = p.errorclass('The second part of the season passed to function nav_hyphen should be four digits, not "'..finish..'".')
return p.failedcat(errors, 'M')
end
end
if finish == '00' then --full year required regardless of term length
trackcat(5, 'Category series navigation range abbreviated (MOS)')
end
end
--calculate intERseason gap size
local hgap_default = 0 --assume & start at the most common case: 2001–02 -> 2002–03, etc.
local hgap_limit_reg = hgap_limit --less expensive per-increment (inc x 4)
local hgap_limit_irreg = hgap_limit --more expensive per-increment (inc x 23 = inc x (k_bwd + k_fwd) = inc x (12 + 11))
local hgap_success = false
local hgap = hgap_default
while hgap <= hgap_limit_reg and regularparent == true do --verify
local prevseason2 = firstpart..lspace..(nstart-t-hgap)..hyph..string.match(nstart-hgap, '%d?%d$') ..tspace..lastpart
local nextseason2 = firstpart..lspace..(nstart+t+hgap)..hyph..string.match(nstart+2*t+hgap, '%d?%d$')..tspace..lastpart
local prevseason4 = firstpart..lspace..(nstart-t-hgap)..hyph..(nstart-hgap) ..tspace..lastpart
local nextseason4 = firstpart..lspace..(nstart+t+hgap)..hyph..(nstart+2*t+hgap)..tspace..lastpart
if t == 1 then --test abbreviated range first, then full range, to be frugal with expensive functions
if catexists(prevseason2) or --use 'or', in case we're at the edge of the cat structure,
catexists(nextseason2) or --or we hit a "–00"/"–2000" situation on one side
catexists(prevseason4) or
catexists(nextseason4)
then
hgap_success = true
break
end
elseif t > 1 then --test full range first, then abbreviated range, to be frugal with expensive functions
if catexists(prevseason4) or --use 'or', in case we're at the edge of the cat structure,
catexists(nextseason4) or --or we hit a "–00"/"–2000" situation on one side
catexists(prevseason2) or
catexists(nextseason2)
then
hgap_success = true
break
end
end
hgap = hgap + 1
end
if hgap_success == false then
hgap = tonumber(testgap) or hgap_default --tracked via defaultgapcat()
end
--preliminary scan to determine ir/regular spacing of nearby cats;
--to limit expensive function calls, MOS:DATERANGE-violating cats are ignored;
--an irregular-term-length series should follow "YYYY..hyph..YYYY" throughout
if hgap <= hgap_limit_reg then --also to isolate temp vars
--find # of nav-visible ir/regular-term-length cats
local bwanchor = nstart --backward anchor/common year
local fwanchor = bwanchor + t --forward anchor/common year
if regularparent == 'isolated' then
fwanchor = bwanchor
end
local spangreen = '[<span style="color:green">j, g, k = ' --used for/when debugging via list-all-links=yes
local spanblue = '<span style="color:blue">'
local spanred = ' (<span style="color:red">'
local span = '</span>'
local lastg = nil --to check for run-on searches
local lastk = nil --to check for run-on searches
local endfound = false --switch used to stop searching forward
local iirregs = 0 --index of tirregs[] for j < 0, since search starts from parent
local j = -3 --index of tirregs[] for j > 0 & pseudo nav position
while j <= 3 do
if j < 0 then --search backward from parent
local gbreak = false --switch used to break out of g-loop
local g = 0 --gap size
while g <= hgap_limit_irreg do
local k = 0 --term length: 0 = "0-length", 1+ = normal
while k <= term_limit do
local from = bwanchor - k - g
local to = bwanchor - g
local full = mw.text.trim( firstpart..lspace..from..hyph..to..tspace..lastpart )
if k == 0 then
if regularparent ~= 'isolated' then --+restrict to g == 0 if repeating year problems arise
to = '0-length'
full = mw.text.trim( firstpart..lspace..from..tspace..lastpart )
if catlinkfollowr( frame, full ).rtarget ~= nil then --#R followed
table.insert( tlistallbwd, spangreen..j..', '..g..', '..k..span..'] '..full..spanred..'#R ignored'..span..')' )
full, to = '', '' --don't use/follow 0-length cat #Rs from nav_hyphen(); otherwise gets messy
end
end
end
if (k >= 1) or --the normal case; only continue k = 0 if 0-length found
(to == '0-length') --ghetto "continue" (thx Lua) to avoid expensive searches for "UK MPs 1974-1974", etc.
then
table.insert( tlistallbwd, spangreen..j..', '..g..', '..k..span..'] '..full )
if (k == 1) and
(g == 0 or g == 1) and
(catexists(full) == false)
then --allow bare-bones MOS:DATERANGE alternation, in case we're on a 0|1-gap, 1-year term series
local to2 = string.match(to, '%d%d$')
if to2 and to2 ~= '00' then --and not at a century transition (i.e. 1999–2000)
to = to2
full = mw.text.trim( firstpart..lspace..from..hyph..to..tspace..lastpart )
table.insert( tlistallbwd, spangreen..j..', '..g..', '..k..span..'] '..full )
end
end
if catexists(full) then
if to == '0-length' then
trackcat(13, 'Category series navigation range irregular, 0-length')
end
tlistallbwd[#tlistallbwd] = spanblue..tlistallbwd[#tlistallbwd]..span..' (found)'
ttlens[ find_duration(full) ] = 1
tgaps[g] = 1
iirregs = iirregs + 1
tirregs['from-'..iirregs] = from
tirregs['to-'..iirregs] = to
bwanchor = from --ratchet down
if to ~= '0-length' then
gbreak = true
break
else
g = 0 --soft-reset g, to keep stepping thru k
j = j + 1 --save, but keep searching thru k
if j > 0 then --(restore "> 3" if acts up) lest we keep searching bwd & finding 0-length cats ("MEPs for the Republic of Ireland 1973" & down)
j = -1 --allow a normal, full search fwd after break
gbreak = true
break
end
end
elseif (j >= 0) and
(lastg and lastk) and
((lastg >= hgap_limit_irreg) or
(lastk >= term_limit))
then --bwd search exhausted and/or done (runaway bwd search on "2018–19 FIA World Endurance Championship season")
j = -1 --allow a normal, full search fwd after break
gbreak = true
break
end
end --ghetto "continue"
k = k + 1
lastk = k
end --while k
if gbreak == true then break end
g = g + 1
lastg = g
end --while g
end --if j < 0
if j > 0 and endfound == false then --search forward from parent
local gbreak = false --switch used to break out of g-loop
local g = 0 --gap size
while g <= hgap_limit_irreg do
local k = -2 --term length: -2 = "0-length", -1 = "2020–present", 0 = "2020–", 1+ = normal
while k <= term_limit do
local from = fwanchor + g
local to4 = fwanchor + k + g --override carefully
local to2 = nil --last 2 digits of to4, IIF exists
if k == -1 then to4 = 'present' --see if end-cat exists (present)
elseif k == 0 then to4 = '' end --see if end-cat exists (blank)
local full = mw.text.trim( firstpart..lspace..from..hyph..to4..tspace..lastpart )
if k == -2 then
if regularparent ~= 'isolated' then --+restrict to g == 0 if repeating year problems arise
to4 = '0-length' --see if 0-length cat exists
full = mw.text.trim( firstpart..lspace..from..tspace..lastpart )
if catlinkfollowr( frame, full ).rtarget ~= nil then --#R followed
table.insert( tlistallfwd, spangreen..j..', '..g..', '..k..span..'] '..full..spanred..'#R ignored'..span..')' )
full, to4 = '', '' --don't use/follow 0-length cat #Rs from nav_hyphen(); otherwise gets messy
end
end
end
if (k >= -1) or --only continue k = -2 if 0-length found
(to4 == '0-length') --ghetto "continue" (thx Lua) to avoid expensive searches for "UK MPs 1974-1974", etc.
then
table.insert( tlistallfwd, spangreen..j..', '..g..', '..k..span..'] '..full )
if (k == 1) and
-- (g == 0 or g == 1) and --commented to let "2002–03 in Scottish women's football" find "2008–09 in Scottish women's football"
(catexists(full) == false)
then --allow bare-bones MOS:DATERANGE alternation, in case we're on a 0|1-gap, 1-year term series
to2 = string.match(to4, '%d%d$')
if to2 and to2 ~= '00' then --and not at a century transition (i.e. 1999–2000)
full = mw.text.trim( firstpart..lspace..from..hyph..to2..tspace..lastpart )
table.insert( tlistallfwd, spangreen..j..', '..g..', '..k..span..'] '..full )
end
end
if catexists(full) then
if to4 == '0-length' then
if rtarget(frame, full) == full then --only use 0-length cats that don't #R
trackcat(13, 'Category series navigation range irregular, 0-length')
end
end
tirregs['from'..j] = from
tirregs['to'..j] = (to2 or to4)
if (k == -1) or (k == 0) then
endfound = true --tentative
else --k == { -2, > 0 }
tlistallfwd[#tlistallfwd] = spanblue..tlistallfwd[#tlistallfwd]..span..' (found)'
ttlens[ find_duration(full) ] = 1
tgaps[g] = 1
endfound = false
if to4 ~= '0-length' then --k > 0
fwanchor = to4 --ratchet up
gbreak = true
break --only break on k > 0 b/c old end-cat #Rs still exist like "Members of the Scottish Parliament 2011–"
else --k == -2
j = j + 1 --save, but keep searching k's, in case "1974" → "1974-1979"
if j > 3 then --lest we keep searching & finding 0-length cats ("2018 CONCACAF Champions League" & up)
gbreak = true
break
end
end
end
end
end --ghetto "continue"
k = k + 1
lastk = k
end --while k
if gbreak == true then break end
g = g + 1
lastg = g
end --while g
end --if j > 0
if (lastg and lastk) and
(lastg > hgap_limit_irreg) and
(lastk > term_limit)
then --search exhausted
if j < 0 then j = 0 --bwd search exhausted; continue fwd
elseif j > 0 then break end --fwd search exhausted
end
j = j + 1
end --while j <= 3
end --if hgap <= hgap_limit_reg
--begin navhyphen
local navh = '{| class="toccolours" style="text-align: center; margin: auto;"\n|\n'
local navlist = {}
local terminalcat = false --switch used to hide future cats
local terminaltxt = nil
local i = -3 --nav position
while i <= 3 do
local from = nstart + i*(t+hgap) --the logical, but not necessarily correct, 'from'
if tirregs['from'..i] then from = tonumber(tirregs['from'..i]) end --prefer irregular term table
local from2 = string.match(from, '%d?%d$')
local to = tostring(from+t) --the logical, naive range, but
if tirregs['to'..i] then --prefer irregular term table
to = tirregs['to'..i]
elseif regularparent == false and tirregs and i > 0 then
to = tirregs['to-1'] --special treatment for parent terminal cats, since they have no natural 'to'
end
local to2 = string.match(to, '%d?%d$')
local tofinal = (to2 or '') --assume t=1 and abbreviated 'to' (the most common case)
if t > 1 or --per MOS:DATERANGE (e.g. 1999-2004)
(from2 - (to2 or from2)) > 0 --century transition exception (e.g. 1999–2000)
then
tofinal = (to or '') --default to the MOS-correct format, in case no fallbacks found
end
if to == '0-length' then
tofinal = to
end
--check existance of 4-digit, MOS-correct range, with abbreviation fallback
if tofinal ~= '0-length' then
if t > 1 and string.len(from) == 4 then --e.g. 1999-2004
--determine which link exists (full or abbr)
local full = firstpart..lspace..from..hyph..tofinal..tspace..lastpart
if not catexists(full) then
local abbr = firstpart..lspace..from..hyph..to2..tspace..lastpart
if catexists(abbr) then
tofinal = (to2 or '') --rv to MOS-incorrect format; if full AND abbr DNE, then tofinal is still in its MOS-correct format
end
end
elseif t == 1 then --full-year consecutive ranges are also allowed
local abbr = firstpart..lspace..from..hyph..tofinal..tspace..lastpart --assume tofinal is in abbr format
if not catexists(abbr) and tofinal ~= to then
local full = firstpart..lspace..from..hyph..to..tspace..lastpart
if catexists(full) then
tofinal = (to or '') --if abbr AND full DNE, then tofinal is still in its abbr format (unless it's a century transition)
end end end end
--populate navh
if i ~= 0 then --left/right navh
local orig = firstpart..lspace..from..hyph..tofinal..tspace..lastpart
local disp = from..hyph..tofinal
if tofinal == '0-length' then
orig = firstpart..lspace..from..tspace..lastpart
disp = from
end
local catlink = catlinkfollowr(frame, orig, disp, true) --force terminal cat display
if terminalcat == false then
terminaltxt = find_terminaltxt( disp ) --also sets tracking cats
terminalcat = (terminaltxt ~= nil)
end
if catlink.rtarget and avoidself then --a {{Category redirect}} was followed, figure out why
--determine new term length & gap size
ttlens[ find_duration( catlink.rtarget ) ] = 1
if i > -3 then
local lastto = tirregs['to'..(i-1)]
if lastto == nil then
local lastfrom = nstart + (i-1)*(t+hgap)
lastto = lastfrom+t --use last logical 'from' to calc lastto
end
if lastto then
local gapcat = lastto..'-'..from --dummy cat to calc with
local gap = find_duration(gapcat) or -1 --in case of nil,
tgaps[ gap ] = 1 --tgaps[-1] is ignored
end
end
--display/tracking handling
local base_regex = '%d+[–-]%d+'
local origbase = mw.ustring.gsub(orig, base_regex, '')
local rtarbase, rtarbase_success = mw.ustring.gsub(catlink.rtarget, base_regex, '')
if rtarbase_success == 0 then
local base_regex_lax = '%d%d%d%d' --in case rtarget is a year cat
rtarbase, rtarbase_success = mw.ustring.gsub(catlink.rtarget, base_regex_lax, '')
end
local terminal_regex = '%d+[–-]'..(terminaltxt or '')..'$' --more manual ORs bc Lua regex sux
if mw.ustring.match(orig, terminal_regex) then
origbase = mw.ustring.gsub(orig, terminal_regex, '')
end
if mw.ustring.match(catlink.rtarget, terminal_regex) then
--finagle/overload terminalcat type to set nmaxseas on 1st occurence only
if terminalcat == false then terminalcat = 1 end
local dummy = find_terminaltxt( catlink.rtarget ) --also sets tracking cats
rtarbase = mw.ustring.gsub(catlink.rtarget, terminal_regex, '')
end
origbase = mw.text.trim(origbase)
rtarbase = mw.text.trim(rtarbase)
if origbase ~= rtarbase then
trackcat(6, 'Category series navigation range redirected (base change)')
elseif terminalcat == 1 then
trackcat(8, 'Category series navigation range redirected (end)')
else --origbase == rtarbase
local all4s_regex = '%d%d%d%d[–-]%d%d%d%d'
local orig_all4s = mw.ustring.match(orig, all4s_regex)
local rtar_all4s = mw.ustring.match(catlink.rtarget, all4s_regex)
if orig_all4s and rtar_all4s then
trackcat(10, 'Category series navigation range redirected (other)')
else
local year_regex1 = '%d%d%d%d$'
local year_regex2 = '%d%d%d%d[%s%)]'
local year_rtar = mw.ustring.match(catlink.rtarget, year_regex1) or
mw.ustring.match(catlink.rtarget, year_regex2)
if orig_all4s and year_rtar then
trackcat(7, 'Category series navigation range redirected (var change)')
else
trackcat(9, 'Category series navigation range redirected (MOS)')
end
end
end
end
if terminalcat then --true or 1
if type(terminalcat) ~= 'boolean' then nmaxseas = from end --only want to do this once
terminalcat = true --done finagling/overloading
end
if (from >= 0) and (nminseas <= from) and (from <= nmaxseas) then
table.insert(navlist, catlink.navelement)
if terminalcat then nmaxseas = nminseas_default end --prevent display of future ranges
else
local hidden = '<span style="visibility:hidden">'..disp..'</span>'
table.insert(navlist, hidden)
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
else --center navh
if finish == -1 then finish = 'present'
elseif finish == 0 then finish = '<span style="visibility:hidden">'..start..'</span>' end
local disp = start..hyph..finish
if regularparent == 'isolated' then disp = start end
table.insert(navlist, '<b>'..disp..'</b>')
end
i = i + 1
end
-- add the list
navh = navh..horizontal(navlist)..'\n'
--tracking cats & finalize
if avoidself then
local igaps = 0 --# of diff gap sizes > 0 found
local itlens = 0 --# of diff term lengths found
for s = 1, hgap_limit_reg do --must loop; #tgaps, #ttlens unreliable
igaps = igaps + (tgaps[s] or 0)
end
for s = 0, term_limit do
itlens = itlens + (ttlens[s] or 0)
end
if igaps > 0 then trackcat(11, 'Category series navigation range gaps') end
if itlens > 1 and ttrackingcats[13] == '' then --avoid duplication in "Category series navigation range irregular, 0-length"
trackcat(12, 'Category series navigation range irregular')
end
end
isolatedcat()
defaultgapcat(not hgap_success)
if listall then
return listalllinks()
else
return navh..'|}'
end
end
--[[=========================={{ nav_tvseason }}============================]]
local function nav_tvseason( frame, firstpart, tv, lastpart, maximumtv )
--Expects a PAGENAME of the form "Futurama (season 1) episodes", where
-- firstpart = Futurama (season
-- tv = 1
-- lastpart = ) episodes
-- maximumtv = 7 ('max' tv season parameter; optional; defaults to 9999)
tv = tonumber(tv)
if tv == nil then
errors = p.errorclass('Function nav_tvseason can\'t recognize the TV season number sent to its 2nd parameter.')
return p.failedcat(errors, 'T')
end
local maxtv = tonumber(maximumtv) or 9999 --allow +/- qualifier
if maxtv < tv then maxtv = tv end --input error; maxtv should be >= parent
--begin navtvseason
local navt = '{| class="toccolours" style="text-align: center; margin: auto;"\n|\n'
local navlist = {}
local i = -5 --nav position
while i <= 5 do
local t = tv + i
if i ~= 0 then --left/right navt
local catlink = catlinkfollowr( frame, firstpart..' '..t..lastpart, t )
if (t >= 1 and t <= maxtv) then --hardcode mintv
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(25, 'Category series navigation TV season redirected')
end
table.insert(navlist, catlink.navelement)
else
local hidden = '<span style="visibility:hidden">'..'0'..'</span>' --'0' to maintain dot spacing
table.insert(navlist, hidden)
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
else --center navt
table.insert(navlist, '<b>'..tv..'</b>')
end
i = i + 1
end
-- add the list
navt = navt..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navt..'|}'
end
end
--[[==========================={{ nav_decade }}=============================]]
local function nav_decade( frame, firstpart, decade, lastpart, mindecade, maxdecade )
--Expects a PAGENAME of the form "Some sequential 2000 example cat", where
-- firstpart = Some sequential
-- decade = 2000
-- lastpart = example cat
-- mindecade = 1800 ('min' decade parameter; optional; defaults to -9999)
-- maxdecade = 2020 ('max' decade parameter; optional; defaults to 9999)
--sterilize dec
local dec = sterilizedec(decade)
if dec == nil then
errors = p.errorclass('Function nav_decade was sent "'..(decade or '')..'" as its 2nd parameter, '..
'but expects a 1 to 4-digit year ending in "0".')
return p.failedcat(errors, 'D')
end
local ndec = tonumber(dec)
--sterilize mindecade & determine AD/BC
local mindefault = '-9999'
local mindec = sterilizedec(mindecade) --returns a tostring(unsigned int), or nil
if mindec then
if string.match(mindecade, '-%d') or
string.match(mindecade, 'BC')
then
mindec = '-'..mindec --better +/-0 behavior with strings (0-initialized int == "-0" string...)
end
elseif mindec == nil and mindecade and mindecade ~= '' then
errors = p.errorclass('Function nav_decade was sent "'..(mindecade or '')..'" as its 4th parameter, '..
'but expects a 1 to 4-digit year ending in "0", the earliest decade to be shown.')
return p.failedcat(errors, 'E')
else --mindec == nil
mindec = mindefault --tonumber() later, after error checks
end
--sterilize maxdecade & determine AD/BC
local maxdefault = '9999'
local maxdec = sterilizedec(maxdecade) --returns a tostring(unsigned int), or nil + error
if maxdec then
if string.match(maxdecade, '-%d') or
string.match(maxdecade, 'BC')
then --better +/-0 behavior with strings (0-initialized int == "-0" string...),
maxdec = '-'..maxdec --but a "-0" string -> tonumber() -> tostring() = "-0",
end --and a "0" string -> tonumber() -> tostring() = "0"
elseif maxdec == nil and maxdecade and maxdecade ~= '' then
errors = p.errorclass('Function nav_decade was sent "'..(maxdecade or '')..'" as its 5th parameter, '..
'but expects a 1 to 4-digit year ending in "0", the highest decade to be shown.')
return p.failedcat(errors, 'F')
else --maxdec == nil
maxdec = maxdefault
end
local tspace = ' ' --assume trailing space for "1950s in X"-type cats
if string.match(lastpart, '^-') then tspace = '' end --DNE for "1970s-related"-type cats
--AD/BC switches & vars
local parentBC = string.match(lastpart, '^BC') --following the "0s BC" convention for all years BC
lastpart = mw.ustring.gsub(lastpart, '^BC%s*', '') --handle BC separately; AD never used
--TODO?: handle BCE, but only if it exists in the wild
local dec0to40AD = (ndec >= 0 and ndec <= 40 and not parentBC) --special behavior in this range
local switchADBC = 1 -- 1=AD parent
if parentBC then switchADBC = -1 end -- -1=BC parent; possibly adjusted later
local BCdisp = ''
local D = -math.huge --secondary switch & iterator for AD/BC transition
--check non-default min/max more carefully
if mindec ~= mindefault then
if tonumber(mindec) > ndec*switchADBC then
mindec = tostring(ndec*switchADBC) --input error; mindec should be <= parent
end
end
if maxdec ~= maxdefault then
if tonumber(maxdec) < ndec*switchADBC then
maxdec = tostring(ndec*switchADBC) --input error; maxdec should be >= parent
end
end
local nmindec = tonumber(mindec) --similar behavior to nav_year & nav_nordinal
local nmaxdec = tonumber(maxdec) --similar behavior to nav_nordinal
--begin navdecade
local bnb = '' --border/no border
if navborder == false then --for Category series navigation year and decade
bnb = ' border-style: none; background-color: transparent;'
end
local navd = '{| class="toccolours" style="text-align: center; margin: auto;'..bnb..'"\n|\n'
local navlist = {}
local i = -50 --nav position x 10
while i <= 50 do
local d = ndec + i*switchADBC
local BC = ''
BCdisp = ''
if dec0to40AD then
if D < -10 then
d = math.abs(d + 10) --b/c 2 "0s" decades exist: "0s BC" & "0s" (AD)
BC = 'BC '
if d == 0 then
D = -10 --track 1st d = 0 use (BC)
end
elseif D >= -10 then
D = D + 10 --now iterate from 0s AD
d = D --2nd d = 0 use
end
elseif parentBC then
if switchADBC == -1 then --parentBC looking at the BC side (the common case)
BC = 'BC '
if d == 0 then --prepare to switch to the AD side on the next iteration
switchADBC = 1 --1st d = 0 use (BC)
D = -10 --prep
end
elseif switchADBC == 1 then --switched to the AD side
D = D + 10 --now iterate from 0s AD
d = D --2nd d = 0 use (on first use)
end
end
if BC ~= '' and ndec <= 50 then
BCdisp = ' BC' --show BC for all BC decades whenever a "0s" is displayed on the nav
end
--determine target cat
local disp = d..'s'..BCdisp
local catlink = catlinkfollowr( frame, firstpart..' '..d..'s'..tspace..BC..lastpart, disp )
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(18, 'Category series navigation decade redirected')
end
--populate left/right navd
local shown = navcenter(i, catlink)
local hidden = '<span style="visibility:hidden">'..disp..'</span>'
local dsign = d --use d for display & dsign for logic
if BC ~= '' then dsign = -dsign end
if (nmindec <= dsign) and (dsign <= nmaxdec) then
if dsign == 0 and (nmindec == 0 or nmaxdec == 0) then --distinguish b/w -0 (BC) & 0 (AD)
--"zoom in" on +/- 0 and turn dsign/min/max temporarily into +/- 1 for easier processing
local zsign, zmin, zmax = 1, nmindec, nmaxdec
if BC ~= '' then zsign = -1 end
if mindec == '-0' then zmin = -1
elseif mindec == '0' then zmin = 1 end
if maxdec == '-0' then zmax = -1
elseif maxdec == '0' then zmax = 1 end
if (zmin <= zsign) and (zsign <= zmax) then
table.insert(navlist, shown)
hidden = nil
else
table.insert(navlist, hidden)
end
else
table.insert(navlist, shown)--the common case
hidden = nil
end
else
table.insert(navlist, hidden)
end
if listall and hidden then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
i = i + 10
end
-- add the list
navd = navd..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navd..'|}'
end
end
--[[============================{{ nav_year }}==============================]]
local function nav_year( frame, firstpart, year, lastpart, minimumyear, maximumyear )
--Expects a PAGENAME of the form "Some sequential 1760 example cat", where
-- firstpart = Some sequential
-- year = 1760
-- lastpart = example cat
-- minimumyear = 1758 ('min' year parameter; optional)
-- maximumyear = 1800 ('max' year parameter; optional)
local minyear_default = -9999
local maxyear_default = 9999
year = tonumber(year) or tonumber(mw.ustring.match(year or '', '^%s*(%d*)'))
local minyear = tonumber(string.match(minimumyear or '', '-?%d+')) or minyear_default --allow +/- qualifier
local maxyear = tonumber(string.match(maximumyear or '', '-?%d+')) or maxyear_default --allow +/- qualifier
if string.match(minimumyear or '', 'BC') then minyear = -math.abs(minyear) end --allow BC qualifier (AD otherwise assumed)
if string.match(maximumyear or '', 'BC') then maxyear = -math.abs(maxyear) end --allow BC qualifier (AD otherwise assumed)
if year == nil then
errors = p.errorclass('Function nav_year can\'t recognize the year sent to its 2nd parameter.')
return p.failedcat(errors, 'Y')
end
--AD/BC switches & vars
local yearBCElastparts = { --needed for parent = AD 1-5, when the BC/E format is unknown
--"BCE" removed to match both AD & BCE cats; easier & faster than multiple string.match()s
['example_Hebrew people_example'] = 'BCE', --example entry format; add to & adjust as needed
}
local parentAD = string.match(firstpart, 'AD$') --following the "AD 1" convention from AD 1 to AD 10
local parentBC = string.match(lastpart, '^BCE?') --following the "1 BC" convention for all years BC
firstpart = mw.ustring.gsub(firstpart, '%s*AD$', '') --handle AD/BC separately for easier & faster accounting
lastpart = mw.ustring.gsub(lastpart, '^BCE?%s*', '')
local BCe = parentBC or yearBCElastparts[lastpart] or 'BC' --"BC" default
local year1to10 = (year >= 1 and year <= 10)
local year1to10ADBC = year1to10 and (parentBC or parentAD) --special behavior 1-10 for low-# non-year series
local year1to15AD = (year >= 1 and year <= 15 and not parentBC) --special behavior 1-15 for AD/BC display
local switchADBC = 1 -- 1=AD parent
if parentBC then switchADBC = -1 end -- -1=BC parent; possibly adjusted later
local Y = 0 --secondary iterator for AD-on-a-BC-parent
if minyear > year*switchADBC then minyear = year*switchADBC end --input error; minyear should be <= parent
if maxyear < year*switchADBC then maxyear = year*switchADBC end --input error; maxyear should be >= parent
local lspace = ' ' --leading space before year, after firstpart
if string.match(firstpart, '[%-VW]$') then
lspace = '' --e.g. "Straight-8 engines"
end
local tspace = ' ' --trailing space after year, before lastpart
if string.match(lastpart, '^-') then
tspace = '' --e.g. "2018-related timelines"
end
--determine interyear gap size to condense special category types, if possible
local ygapdefault = 1 --assume/start at the most common case: 2001, 2002, etc.
local ygap = ygapdefault
if string.match(lastpart, 'presidential') then
local ygap1, ygap2 = ygapdefault, ygapdefault --need to determine previous & next year gaps indepedently
local ygap1_success, ygap2_success = false, false
local prevseason = nil
while ygap1 <= ygap_limit do --Czech Republic, Poland, Sri Lanka, etc. have 5-year terms
prevseason = firstpart..lspace..(year-ygap1)..tspace..lastpart
if catexists(prevseason) then
ygap1_success = true
break
end
ygap1 = ygap1 + 1
end
local nextseason = nil
while ygap2 <= ygap_limit do --Czech Republic, Poland, Sri Lanka, etc. have 5-year terms
nextseason = firstpart..lspace..(year+ygap2)..tspace..lastpart
if catexists(nextseason) then
ygap2_success = true
break
end
ygap2 = ygap2 + 1
end
if ygap1_success and ygap2_success then
if ygap1 == ygap2 then ygap = ygap1 end
elseif ygap1_success then ygap = ygap1
elseif ygap2_success then ygap = ygap2
end
end
--skip non-existing years, if requested
local ynogaps = {} --populate with existing years in the range, at most, [year - (skipgaps_limit * 5), year + (skipgaps_limit * 5)]
if skipgaps then
if minyear == minyear_default then
minyear = 0 --automatically set minyear to 0, as AD/BC not supported anyway
end
if (year > 70) or --add support for AD/BC (<= AD 10) if/when needed
(minyear >= 0 and --must be a non-year series like "AC with 0 elements"
not parentAD and not parentBC)
then
local yskipped = {} --track skipped y's to avoid double-checking
local cat, found, Yeary
--populate nav element queue outwards positively from the parent
local Year = year --to save/ratchet progression
local i = 1
while i <= 5 do
local y = 1
while y <= skipgaps_limit do
found = false
Yeary = Year + y
if yskipped[Yeary] == nil then
yskipped[Yeary] = Yeary
cat = firstpart..lspace..Yeary..tspace..lastpart
found = catexists(cat)
if found then break end
end
y = y + 1
end
if found then Year = Yeary
else Year = Year + 1 end
ynogaps[i] = Year
i = i + 1
end
ynogaps[0] = year --the parent
--populate nav element queue outwards negatively from the parent
Year = year --reset ratchet
i = -1
while i >= -5 do
local y = -1
while y >= -skipgaps_limit do
found = false
Yeary = Year + y
if yskipped[Yeary] == nil then
yskipped[Yeary] = Yeary
cat = firstpart..lspace..Yeary..tspace..lastpart
found = catexists(cat)
if found then break end
end
y = y - 1
end
if found then Year = Yeary
else Year = Year - 1 end
ynogaps[i] = Year
i = i - 1
end
else
skipgaps = false --AD/BC not supported
end
end
--begin navyears
local navy = '{| class="toccolours" style="text-align: center; margin: auto;"\n|\n'
local navlist = {}
local y
local j = 0 --decrementor for special cases "2021 World Rugby Sevens Series" -> "2021–2022"
local i = -5 --nav position
while i <= 5 do
if skipgaps then
y = ynogaps[i]
else
y = year + i*ygap*switchADBC - j
end
local BCdisp = ''
if i ~= 0 then --left/right navy
local AD = ''
local BC = ''
if year1to15AD and not
(year1to10 and not year1to10ADBC) --don't AD/BC 1-10's if parents don't contain AD/BC
then
if year >= 11 then --parent = AD 11-15
if y <= 10 then --prepend AD on y = 1-10 cats only, per existing cats
AD = 'AD '
end
elseif year >= 1 then --parent = AD 1-10
if y <= 0 then
BC = BCe..' '
y = math.abs(y - 1) --skip y = 0 (DNE)
elseif y >= 1 and y <= 10 then --prepend AD on y = 1-10 cats only, per existing cats
AD = 'AD '
end
end
elseif parentBC then
if switchADBC == -1 then --displayed y is in the BC regime
if y >= 1 then --the common case
BC = BCe..' '
elseif y == 0 then --switch from BC to AD regime
switchADBC = 1
end
end
if switchADBC == 1 then --displayed y is now in the AD regime
Y = Y + 1 --skip y = 0 (DNE)
y = Y --easiest solution: start another iterator for these AD y's displayed on a BC year parent
AD = 'AD '
end
end
if BC ~= '' and year <= 5 then --only show 'BC' for parent years <= 5: saves room, easier to read,
BCdisp = ' '..BCe --and 6 is the first/last nav year that doesn't need a disambiguator;
end --the center/parent year will always show BC, so no need to show it another 10x
--populate left/right navy
local ysign = y --use y for display & ysign for logic
local disp = y..BCdisp
if BC ~= '' then ysign = -ysign end
local firsttry = firstpart..lspace..AD..y..tspace..BC..lastpart
if (minyear <= ysign) and (ysign <= maxyear) then
local catlinkAD = catlinkfollowr( frame, firsttry, disp ) --try AD
local catlink = catlinkAD --tentative winner
if AD ~= '' then --for "ACArt with 5 suppressed elements"-type cats
local catlinkNoAD = catlinkfollowr( frame, firstpart..lspace..y..tspace..BC..lastpart, disp ) --try !AD
if catlinkNoAD.catexists == true then
catlink = catlinkNoAD --usurp
elseif listall then
tlistall[#tlistall] = tlistall[#tlistall]..' (tried; not displayed)<sup>1</sup>'
end
end
if (AD..BC == '') and (catlink.catexists == false) and (y >= 1000) then --!ADBC & DNE; 4-digit only, to be frugal
--try basic hyphenated cats: 1-year, endash, MOS-correct only, no #Rs
local yHyph_4 = y..'–'..(y+1) --try 2010–2011 type cats
local catlinkHyph_4 = catlinkfollowr( frame, firstpart..lspace..yHyph_4..tspace..BC..lastpart, yHyph_4 )
if catlinkHyph_4.catexists and catlinkHyph_4.rtarget == nil then --exists & no #Rs
catlink = catlinkHyph_4 --usurp
trackcat(27, 'Category series navigation year and range')
else
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' (tried; not displayed)<sup>2</sup>'
end
local yHyph_2 = y..'–'..string.match(y+1, '%d%d$') --try 2010–11 type cats
if i == 1 then
local yHyph_2_special = (y-1)..'–'..string.match(y, '%d%d$') --try special case 2021 -> 2021–22
local catlinkHyph_2_special = catlinkfollowr( frame, firstpart..lspace..yHyph_2_special..tspace..BC..lastpart, yHyph_2_special )
if catlinkHyph_2_special.catexists and catlinkHyph_2_special.rtarget == nil then --exists & no #Rs
catlink = catlinkHyph_2_special --usurp
trackcat(27, 'Category series navigation year and range')
j = 1
elseif listall then
tlistall[#tlistall] = tlistall[#tlistall]..' (tried; not displayed)<sup>3</sup>'
end
end
if not (i == 1 and j == 1) then
local catlinkHyph_2 = catlinkfollowr( frame, firstpart..lspace..yHyph_2..tspace..BC..lastpart, yHyph_2 )
if catlinkHyph_2.catexists and catlinkHyph_2.rtarget == nil then --exists & no #Rs
catlink = catlinkHyph_2 --usurp
trackcat(27, 'Category series navigation year and range')
elseif listall then
tlistall[#tlistall] = tlistall[#tlistall]..' (tried; not displayed)<sup>4</sup>'
end
end
end
end
if catlink.rtarget then --#R followed; determine why
local r = catlink.rtarget
local c = catlink.cat
local year_regex = '%d%d%d%d[–-]?%d?%d?%d?%d?' --prioritize year/range stripping, e.g. for "2006 Super 14 season"
local hyph_regex = '%d%d%d%d[–-]%d+' --stricter
local num_regex = '%d+' --strip any number otherwise
local final_regex = nil --best choice goes here
if mw.ustring.match(r, year_regex) and mw.ustring.match(c, year_regex) then
final_regex = year_regex
elseif mw.ustring.match(r, num_regex) and mw.ustring.match(c, num_regex) then
final_regex = num_regex
end
if final_regex then
local r_base = mw.ustring.gsub(r, final_regex, '')
local c_base = mw.ustring.gsub(c, final_regex, '')
if r_base ~= c_base then
trackcat(19, 'Category series navigation year redirected (base change)') --acceptable #R target
elseif mw.ustring.match(r, hyph_regex) then
trackcat(20, 'Category series navigation year redirected (var change)') --e.g. "2008 in Scottish women's football" to "2008–09"
else
trackcat(21, 'Category series navigation year redirected (other)') --exceptions go here
end
else
trackcat(20, 'Category series navigation year redirected (var change)') --e.g. "V2 engines" to "V-twin engines"
end
end
table.insert(navlist, catlink.navelement)
else --OOB vs min/max
local hidden = '<span style="visibility:hidden">'..disp..'</span>'
table.insert(navlist, hidden)
if listall then
local dummy = catlinkfollowr( frame, firsttry, disp )
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
else --center navy
if parentBC then BCdisp = ' '..BCe end
table.insert(navlist, '<b>'..year..BCdisp..'</b>')
end
i = i + 1
end
--add the list
navy = navy..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navy..'|}'
end
end
--[[==========================={{ nav_roman }}==============================]]
local function nav_roman( frame, firstpart, roman, lastpart, minimumrom, maximumrom )
local toarabic = require('Module:ConvertNumeric').roman_to_numeral
local toroman = require('Module:Roman').main
--sterilize/convert rom/num
local num = tonumber(toarabic(roman))
local rom = toroman({ [1] = num })
if num == nil or rom == nil then --out of range or some other error
errors = p.errorclass('Function nav_roman can\'t recognize one or more of "'..(num or 'nil')..'" & "'..
(rom or 'nil')..'" in category "'..firstpart..' '..roman..' '..lastpart..'".')
return p.failedcat(errors, 'R')
end
--sterilize min/max
local minrom = tonumber(minimumrom or '') or tonumber(toarabic(minimumrom or ''))
local maxrom = tonumber(maximumrom or '') or tonumber(toarabic(maximumrom or ''))
if minrom < 1 then minrom = 1 end --toarabic() returns -1 on error
if maxrom < 1 then maxrom = 9999 end --toarabic() returns -1 on error
if minrom > num then minrom = num end
if maxrom < num then maxrom = num end
--begin navroman
local navr = '{| class="toccolours" style="text-align: center; margin: auto;"\n|\n'
local navlist = {}
local i = -5 --nav position
while i <= 5 do
local n = num + i
if n >= 1 then
local r = toroman({ [1] = n })
if i ~= 0 then --left/right navr
local catlink = catlinkfollowr( frame, firstpart..' '..r..' '..lastpart, r )
if minrom <= n and n <= maxrom then
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(22, 'Category series navigation roman numeral redirected')
end
table.insert(navlist, catlink.navelement)
else
local hidden = '<span style="visibility:hidden">'..r..'</span>'
table.insert(navlist, hidden)
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
else --center navr
table.insert(navlist, '<b>'..r..'</b>')
end
else
table.insert(navlist, '<span style="visibility:hidden">I</span>')
end
i = i + 1
end
-- add the list
navr = navr..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navr..'|}'
end
end
--[[=========================={{ nav_nordinal }}============================]]
local function nav_nordinal( frame, firstpart, ord, lastpart, minimumord, maximumord )
local nord = tonumber(ord)
local minord = tonumber(string.match(minimumord or '', '(-?%d+)[snrt]?[tdh]?')) or -9999 --allow full ord & +/- qualifier
local maxord = tonumber(string.match(maximumord or '', '(-?%d+)[snrt]?[tdh]?')) or 9999 --allow full ord & +/- qualifier
if string.match(minimumord or '', 'BC') then minord = -math.abs(minord) end --allow BC qualifier (AD otherwise assumed)
if string.match(maximumord or '', 'BC') then maxord = -math.abs(maxord) end --allow BC qualifier (AD otherwise assumed)
local temporal = string.match(lastpart, 'century') or
string.match(lastpart, 'millennium')
local tspace = ' ' --assume a trailing space after ordinal
if string.match(lastpart, '^-') then tspace = '' end --DNE for "19th-century"-type cats
--AD/BC switches & vars
local ordBCElastparts = { --needed for parent = AD 1-5, when the BC/E format is unknown
--lists the lastpart of valid BCE cats
--"BCE" removed to match both AD & BCE cats; easier & faster than multiple string.match()s
['-century Hebrew people'] = 'BCE', --WP:CFD/Log/2016 June 21#Category:11th-century BC Hebrew people
['-century Jews'] = 'BCE', --co-nominated
['-century Judaism'] = 'BCE', --co-nominated
['-century rabbis'] = 'BCE', --co-nominated
['-century High Priests of Israel'] = 'BCE',
}
local parentBC = mw.ustring.match(lastpart, '%s(BCE?)') --"1st-century BC" format
local lastpartNoBC = mw.ustring.gsub(lastpart, '%sBCE?', '') --easier than splitting lastpart up in 2; AD never used
local BCe = parentBC or ordBCElastparts[lastpartNoBC] or 'BC' --"BC" default
local switchADBC = 1 -- 1=AD parent
if parentBC then switchADBC = -1 end -- -1=BC parent; possibly adjusted later
local O = 0 --secondary iterator for AD-on-a-BC-parent
if not temporal and minord < 1 then minord = 1 end --nothing before "1st parliament", etc.
if minord > nord*switchADBC then minord = nord*switchADBC end --input error; minord should be <= parent
if maxord < nord*switchADBC then maxord = nord*switchADBC end --input error; maxord should be >= parent
--begin navnordinal
local bnb = '' --border/no border
if navborder == false then --for Category series navigation decade and century
bnb = ' border-style: none; background-color: transparent;'
end
local navo = '{| class="toccolours" style="text-align: center; margin: auto;'..bnb..'"\n|\n'
local navlist = {}
local i = -5 --nav position
while i <= 5 do
local o = nord + i*switchADBC
local BC = ''
local BCdisp = ''
if parentBC then
if switchADBC == -1 then --parentBC looking at the BC side
if o >= 1 then --the common case
BC = ' '..BCe
elseif o == 0 then --switch to the AD side
BC = ''
switchADBC = 1
end
end
if switchADBC == 1 then --displayed o is now in the AD regime
O = O + 1 --skip o = 0 (DNE)
o = O --easiest solution: start another iterator for these AD o's displayed on a BC year parent
end
elseif o <= 0 then --parentAD looking at BC side
BC = ' '..BCe
o = math.abs(o - 1) --skip o = 0 (DNE)
end
if BC ~= '' and nord <= 5 then --only show 'BC' for parent ords <= 5: saves room, easier to read,
BCdisp = ' '..BCe --and 6 is the first/last nav ord that doesn't need a disambiguator;
end --the center/parent ord will always show BC, so no need to show it another 10x
--populate left/right navo
local oth = p.addord(o)
local osign = o --use o for display & osign for logic
if BC ~= '' then osign = -osign end
local hidden = '<span style="visibility:hidden">'..oth..'</span>'
if temporal then --e.g. "3rd-century BC"
local lastpart = lastpartNoBC --lest we recursively add multiple "BC"s
if BC ~= '' then
lastpart = string.gsub(lastpart, temporal, temporal..BC) --replace BC if needed
end
local catlink = catlinkfollowr( frame, firstpart..' '..oth..tspace..lastpart, oth..BCdisp )
if (minord <= osign) and (osign <= maxord) then
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(23, 'Category series navigation nordinal redirected')
end
table.insert(navlist, navcenter(i, catlink))
else
table.insert(navlist, hidden)
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
elseif BC == '' and minord <= osign and osign <= maxord then --e.g. >= "1st parliament"
local catlink = catlinkfollowr( frame, firstpart..' '..oth..tspace..lastpart, oth )
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(23, 'Category series navigation nordinal redirected')
end
table.insert(navlist, navcenter(i, catlink))
else --either out-of-range (hide), or non-temporal + BC = something might be wrong (2nd X parliament BC?); handle exceptions if/as they arise
table.insert(navlist, hidden)
end
i = i + 1
end
navo = navo..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navo..'|}'
end
end
--[[========================={{ nav_wordinal }}=============================]]
local function nav_wordinal( frame, firstpart, word, lastpart, minimumword, maximumword, ordinal, frame )
--Module:ConvertNumeric.spell_number2() args:
-- ordinal == true : 'second' is output instead of 'two'
-- ordinal == false: 'two' is output instead of 'second'
local ord2eng = require('Module:ConvertNumeric').spell_number2
local eng2ord = require('Module:ConvertNumeric').english_to_ordinal
local th = 'th'
if not ordinal then
th = ''
eng2ord = require('Module:ConvertNumeric').english_to_numeral
end
local capitalize = nil ~= string.match(word, '^%u') --determine capitalization
local nord = eng2ord(string.lower(word)) --operate on/with lowercase, and restore any capitalization later
local lspace = ' ' --assume a leading space (most common)
local tspace = ' ' --assume a trailing space (most common)
if string.match(firstpart, '[%-%(]$') then lspace = '' end --DNE for "Straight-eight engines"-type cats
if string.match(lastpart, '^[%-%)]' ) then tspace = '' end --DNE for "Nine-cylinder engines"-type cats
--sterilize min/max
local minword = 1
local maxword = 99
if minimumword then
local num = tonumber(minimumword)
if num and 0 < num and num < maxword then
minword = num
else
local ord = eng2ord(minimumword)
if 0 < ord and ord < maxword then
minword = ord
end
end
end
if maximumword then
local num = tonumber(maximumword)
if num and 0 < num and num < maxword then
maxword = num
else
local ord = eng2ord(maximumword)
if 0 < ord and ord < maxword then
maxword = ord
end
end
end
if minword > nord then minword = nord end
if maxword < nord then maxword = nord end
--begin navwordinal
local navw = '{| class="toccolours" style="text-align: center; margin: auto;"\n|\n'
local navlist = {}
local i = -5 --nav position
while i <= 5 do
local n = nord + i
if n >= 1 then
local nth = p.addord(n)
if not ordinal then nth = n end
if i ~= 0 then --left/right navw
local w = ord2eng{ num = n, ordinal = ordinal, capitalize = capitalize }
local catlink = catlinkfollowr( frame, firstpart..lspace..w..tspace..lastpart, nth )
if minword <= n and n <= maxword then
if catlink.rtarget then --a {{Category redirect}} was followed
trackcat(24, 'Category series navigation wordinal redirected')
end
table.insert(navlist, catlink.navelement)
else
local hidden = '<span style="visibility:hidden">'..nth..'</span>'
table.insert(navlist, hidden)
if listall then
tlistall[#tlistall] = tlistall[#tlistall]..' ('..hidden..')'
end
end
else --center navw
table.insert(navlist, '<b>'..nth..'</b>')
end
else
table.insert(navlist, '<span style="visibility:hidden">'..'0'..th..'</span>')
end
i = i + 1
end
-- Add the list
navw = navw..horizontal(navlist)..'\n'
isolatedcat()
if listall then
return listalllinks()
else
return navw..'|}'
end
end
--[[==========================={{ find_var }}===============================]]
local function find_var( pn )
--Extracts the variable text (e.g. 2015, 2015–16, 2000s, 3rd, III, etc.) from a string,
--and returns { ['vtype'] = <'year'|'season'|etc.>, <v> = <2015|2015–16|etc.> }
local pagename = currtitle.text
if pn and pn ~= '' then
pagename = pn
end
local cpagename = 'Category:'..pagename --limited-Lua-regex workaround
local d_season = mw.ustring.match(cpagename, ':(%d+s).+%(%d+[–-]%d+%)') --i.e. "1760s in the Province of Quebec (1763–1791)"
local y_season = mw.ustring.match(cpagename, ':(%d+) .+%(%d+[–-]%d+%)') --i.e. "1763 establishments in the Province of Quebec (1763–1791)"
local e_season = mw.ustring.match(cpagename, '%s(%d+[–-])$') or --irreg; ending unknown, e.g. "Members of the Scottish Parliament 2021–"
mw.ustring.match(cpagename, '%s(%d+[–-]present)$') --e.g. "UK MPs 2019–present"
local season = mw.ustring.match(cpagename, '[:%s%(](%d+[–-]%d+)[%)%s]') or --split in 2 b/c you can't frontier '$'/eos?
mw.ustring.match(cpagename, '[:%s](%d+[–-]%d+)$')
local tvseason = mw.ustring.match(cpagename, 'season (%d+)') or
mw.ustring.match(cpagename, 'series (%d+)')
local nordinal = mw.ustring.match(cpagename, '[:%s](%d+[snrt][tdh])[-%s]') or
mw.ustring.match(cpagename, '[:%s](%d+[snrt][tdh])$')
local decade = mw.ustring.match(cpagename, '[:%s](%d+s)[%s-]') or
mw.ustring.match(cpagename, '[:%s](%d+s)$')
local year = mw.ustring.match(cpagename, '[:%s](%d%d%d%d)%s') or --prioritize 4-digit years
mw.ustring.match(cpagename, '[:%s](%d%d%d%d)$') or
mw.ustring.match(cpagename, '[:%s](%d+)%s') or
mw.ustring.match(cpagename, '[:%s](%d+)$') or
--expand/combine exceptions below as needed
mw.ustring.match(cpagename, '[:%s](%d+)-related') or
mw.ustring.match(cpagename, '[:%s](%d+)-cylinder') or
mw.ustring.match(cpagename, '[:%-VW](%d+)%s') --e.g. "Straight-8 engines"
local roman = mw.ustring.match(cpagename, '%s([IVXLCDM]+)%s')
local found = d_season or y_season or e_season or season or tvseason or
nordinal or decade or year or roman
if found then
if string.match(found, '%d%d%d%d%d') == nil then
--return in order of decreasing complexity/least chance for duplication
if nordinal and season --i.e. "18th-century establishments in the Province of Quebec (1763–1791)"
then return { ['vtype'] = 'nordinal', ['v'] = nordinal } end
if d_season then return { ['vtype'] = 'decade', ['v'] = d_season } end
if y_season then return { ['vtype'] = 'year', ['v'] = y_season } end
if e_season then return { ['vtype'] = 'ending', ['v'] = e_season } end
if season then return { ['vtype'] = 'season', ['v'] = season } end
if tvseason then return { ['vtype'] = 'tvseason', ['v'] = tvseason } end
if nordinal then return { ['vtype'] = 'nordinal', ['v'] = nordinal } end
if decade then return { ['vtype'] = 'decade', ['v'] = decade } end
if year then return { ['vtype'] = 'year', ['v'] = year } end
if roman then return { ['vtype'] = 'roman', ['v'] = roman } end
end
else
--try wordinals ('zeroth' to 'ninety-ninth' only)
local eng2ord = require('Module:ConvertNumeric').english_to_ordinal
local split = mw.text.split(pagename, ' ')
for i=1, #split do
if eng2ord(split[i]) > -1 then
return { ['vtype'] = 'wordinal', ['v'] = split[i] }
end
end
--try English numerics ('one'/'single' to 'ninety-nine' only)
local eng2num = require('Module:ConvertNumeric').english_to_numeral
local split = mw.text.split(pagename, '[%s%-]') --e.g. "Nine-cylinder engines"
for i=1, #split do
if eng2num(split[i]) > -1 then
return { ['vtype'] = 'enumeric', ['v'] = split[i] }
end
end
end
errors = p.errorclass('Function find_var can\'t find the variable text in category "'..pagename..'".')
return { ['vtype'] = 'error', ['v'] = p.failedcat(errors, 'V') }
end
--[[==========================================================================]]
--[[ Main ]]
--[[==========================================================================]]
function p.csn( frame )
--arg checks & handling
local args = frame:getParent().args
checkforunknownparams(args) --for template args
checkforunknownparams(frame.args) --for #invoke'd args
local cat = args['cat'] --'testcase' alias for catspace
local list = args['list-all-links'] --debugging utility to output all links & followed #Rs
local follow = args['follow-redirects'] --default 'yes'
local testcase = args['testcase']
local testcasegap = args['testcasegap']
local minimum = args['min']
local maximum = args['max']
local skip_gaps = args['skip-gaps']
local show = args['show']
if show and show ~= '' then
if show == 'skip-gaps' then return skipgaps_limit
elseif show == 'term-limit' then return term_limit
elseif show == 'hgap-limit' then return hgap_limit
elseif show == 'ygap-limit' then return ygap_limit end
end
--apply args
local pagename = testcase or cat or currtitle.text
local testcaseindent = ''
if testcasecolon == ':' then testcaseindent = '\n::' end
if follow and follow == 'no' then followRs = false end
if list and list == 'yes' then listall = true end
if skip_gaps and skip_gaps == 'yes' then
skipgaps = true
trackcat(26, 'Category series navigation using skip-gaps parameter')
end
--ns checks
if currtitle.nsText == 'Category' then
if cat and cat ~= '' then
trackcat(1, 'Category series navigation using cat parameter')
end
if testcase and testcase ~= '' then
trackcat(2, 'Category series navigation using testcase parameter')
end
elseif currtitle.nsText == '' then
trackcat(30, 'Category series navigation in mainspace')
end
--find the variable parts of pagename
local findvar = find_var(pagename)
if findvar.vtype == 'error' then --basic format error checking in find_var()
return findvar.v..table.concat(ttrackingcats)
end
local start = string.match(findvar.v, '^%d+')
--the rest is static
local findvar_escaped = string.gsub( findvar.v, '%-', '%%%-')
local firstpart, lastpart = string.match(pagename, '^(.-)'..findvar_escaped..'(.*)$')
if findvar.vtype == 'tvseason' then --double check for cases like "30 Rock (season 3) episodes"
firstpart, lastpart = string.match(pagename, '^(.-season )'..findvar_escaped..'(.*)$')
if firstpart == nil then
firstpart, lastpart = string.match(pagename, '^(.-series )'..findvar_escaped..'(.*)$')
end
end
firstpart = mw.text.trim(firstpart or '')
lastpart = mw.text.trim(lastpart or '')
--call the appropriate nav function, in order of decreasing popularity
if findvar.vtype == 'year' then --e.g. "500", "2001"; nav_year..nav_decade; ~75% of cats
local nav1 = nav_year( frame, firstpart, start, lastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
local dec = math.floor(findvar.v/10)
local decadecat = nil
local firstpart_dec = firstpart
if firstpart_dec ~= '' then
firstpart_dec = firstpart_dec..' the'
elseif firstpart_dec == 'AD' and dec <= 1 then
firstpart_dec = ''
if dec == 0 then dec = '' end
end
local decade = dec..'0s '
decadecat = mw.text.trim( firstpart_dec..' '..decade..lastpart )
local exists = catexists(decadecat)
if exists then
navborder = false
trackcat(28, 'Category series navigation year and decade')
local nav2 = nav_decade( frame, firstpart_dec, decade, lastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
return nav1nav2( nav1, nav2 )
elseif ttrackingcats[16] ~= '' then --nav_year isolated; check nav_hyphen (e.g. UK MPs 1974, Moldovan MPs 2009, etc.)
local hyphen = '–'
local finish = start
local nav2 = nav_hyphen( frame, start, hyphen, finish, firstpart, lastpart, minimum, maximum, testcasegap )..testcaseindent..table.concat(ttrackingcats)
if ttrackingcats[16] ~= '' then return nav1 --still isolated; rv to nav_year
else return nav2 end
else --regular nav_year
return nav1
end
elseif findvar.vtype == 'decade' then --e.g. "0s", "2010s"; nav_decade..nav_nordinal; ~12% of cats
local nav1 = nav_decade( frame, firstpart, start, lastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
local decade = tonumber(string.match(findvar.v, '^(%d+)s'))
local century = math.floor( ((decade-1)/100) + 1 ) --from {{CENTURY}}
if century == 0 then century = 1 end --no 0th century
if string.match(decade, '00$') then
century = century + 1 --'2000' is in the 20th, but the rest of the 2000s is in the 21st
end
local clastpart = ' century '..lastpart
local centurycat = mw.text.trim( firstpart..' '..p.addord(century)..clastpart )
local exists = catexists(centurycat)
if not exists then --check for hyphenated century
clastpart = '-century '..lastpart
centurycat = mw.text.trim( firstpart..' '..p.addord(century)..clastpart )
exists = catexists(centurycat)
end
if exists then
navborder = false
trackcat(29, 'Category series navigation decade and century')
local nav2 = nav_nordinal( frame, firstpart, century, clastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
return nav1nav2( nav1, nav2 )
else
return nav1
end
elseif findvar.vtype == 'nordinal' then --e.g. "1st", "99th"; ~7.5% of cats
return nav_nordinal( frame, firstpart, start, lastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
elseif findvar.vtype == 'season' then --e.g. "1–4", "1999–2000", "2001–02", "2001–2002", "2005–2010", etc.; ~5.25%
local hyphen, finish = mw.ustring.match(findvar.v, '%d([–-])(%d+)') --ascii 150 & 45 (ndash & keyboard hyphen); mw req'd
return nav_hyphen( frame, start, hyphen, finish, firstpart, lastpart, minimum, maximum, testcasegap )..testcaseindent..table.concat(ttrackingcats)
elseif findvar.vtype == 'tvseason' then --e.g. "1", "15" but preceded with "season" or "series"; <1% of cats
return nav_tvseason( frame, firstpart, start, lastpart, maximum )..testcaseindent..table.concat(ttrackingcats) --"minimum" defaults to 1
elseif findvar.vtype == 'wordinal' then --e.g. "first", "ninety-ninth"; <<1% of cats
local ordinal = true
return nav_wordinal( frame, firstpart, findvar.v, lastpart, minimum, maximum, ordinal, frame )..testcaseindent..table.concat(ttrackingcats)
elseif findvar.vtype == 'enumeric' then --e.g. "one", "ninety-nine"; <<1% of cats
local ordinal = false
return nav_wordinal( frame, firstpart, findvar.v, lastpart, minimum, maximum, ordinal, frame )..testcaseindent..table.concat(ttrackingcats)
elseif findvar.vtype == 'roman' then --e.g. "I", "XXVIII"; <<1% of cats
return nav_roman( frame, firstpart, findvar.v, lastpart, minimum, maximum )..testcaseindent..table.concat(ttrackingcats)
elseif findvar.vtype == 'ending' then --e.g. "2021–" (irregular; ending unknown); <<<1% of cats
local hyphen, finish = mw.ustring.match(findvar.v, '%d([–-])present$'), -1 --ascii 150 & 45 (ndash & keyboard hyphen); mw req'd
if hyphen == nil then
hyphen, finish = mw.ustring.match(findvar.v, '%d([–-])$'), 0 --0/-1 are hardcoded switches for nav_hyphen()
end
return nav_hyphen( frame, start, hyphen, finish, firstpart, lastpart, minimum, maximum, testcasegap )..testcaseindent..table.concat(ttrackingcats)
else --malformed
errors = p.errorclass('Failed to determine the appropriate nav function from malformed season "'..findvar.v..'". ')
return p.failedcat(errors, 'N')..table.concat(ttrackingcats)
end
end
return p