Module:ang-verb
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- The following documentation is located at Module:ang-verb/documentation. Categories were auto-generated by Module:module categorization.
- Useful links: subpage list • links • transclusions • testcases • sandbox
local m_links = require("Module:links")
local m_utilities = require("Module:utilities")
local strutils = require("Module:string utilities")
local m_table = require("Module:table")
local com = require("Module:ang-common")
local lang = require("Module:languages").getByCode("ang")
local rfind = mw.ustring.find
local rmatch = mw.ustring.match
local rsplit = mw.text.split
local rsubn = mw.ustring.gsub
-- version of rsubn() that discards all but the first return value
local function rsub(term, foo, bar, n)
local retval = rsubn(term, foo, bar, n)
return retval
end
-- like str:gsub() but discards all but the first return value
local function gsub(term, foo, bar, n)
local retval = term:gsub(foo, bar, n)
return retval
end
local function track(page)
require("Module:debug").track("ang-verb/" .. page)
return true
end
local export = {}
local long_vowel = "āēīōūȳǣ" .. com.MACRON -- No precomposed œ + macron
local short_vowel = "aeiouyæœ"
local short_vowel_c = ""
local vowel = long_vowel .. short_vowel
local vowel_c = ""
local long_vowel_c = ""
local non_vowel_c = ""
local always_unvoiced_cons = "cċkptxz"
local always_unvoiced_cons_c = ""
local unvoiced_cons = always_unvoiced_cons .. "fsþð"
local unvoiced_cons_c = ""
local single_cons = "bcċdfgġhklmnprstwþðƿ"
local single_cons_c = ""
local cons = single_cons .. "xz"
local cons_c = ""
local slots_and_accel = {
= "inf",
= "inflected|inf",
= "1|s|pres|indc",
= "2|s|pres|indc",
= "3|s|pres|indc",
= "p|pres|indc",
= "s|pres|subj",
= "p|pres|subj",
= "1|s|pret|indc",
= "2|s|pret|indc",
= "3|s|pret|indc",
= "p|pret|indc",
= "s|pret|subj",
= "p|pret|subj",
= "s|impr",
= "p|impr",
= "pres|part",
= "past|part",
}
local function ends_in_long_vowel(word)
if rfind(word, long_vowel_c .. "$") then
return true
elseif rfind(word, "ē$") then
return true
elseif rfind(word, "ī$") then
return true
else
return false
end
end
local function begins_with_verbal_prefix(word)
word = com.decompose(word)
for _, prefixspec in ipairs(com.prefixes) do
local prefix = prefixspec
local specs = prefixspec
if specs.verb then
local main = rmatch(word, "^" .. prefix .. "(.-)$")
if main and (not specs.restriction or rfind(main, specs.restriction)) then
return true
end
end
end
return false
end
local function make_table(forms)
local title = forms.title
local accel_lemma = m_links.remove_links(forms.infinitive or mw.title.getCurrentTitle().text)
local function typetext()
local typ = forms
local class = forms
if typ == "strong" then
return "]"
elseif typ == "weak" then
return "]"
elseif typ == "pretpres" then
return "]"
elseif typ == "irreg" or typ == "anomalous" then
return "]"
else
error("Unrecognized verb type: " .. typ)
end
end
if not title then
title = "Conjugation of " .. m_links.full_link({lang = lang, alt = accel_lemma}, "term")
if forms then
title = title .. " (" .. typetext() .. ")"
end
end
local table_args = {
title = title,
style = forms.style == "right" and "float:right; clear:right;" or "",
width = forms.width or "30",
}
for slot, accel_form in pairs(slots_and_accel) do
local table_arg = {}
local slotforms = forms and #forms > 0 and forms or {"—"}
for _, form in ipairs(slotforms) do
table.insert(table_arg, form == "—" and form or m_links.full_link{
lang = lang, term = form, accel = {
form = accel_form ~= "" and accel_form or nil,
lemma = accel_lemma,
}
})
table_args = table.concat(table_arg, ", ")
end
end
local table = [=[
<div class="NavFrame" style="{style}max-width:{width}em">
<div class="NavHead" style="background: #EFF7FF" >{title}
</div>
<div class="NavContent">
{\op}| style="background:#F9F9F9;text-align:center;width:100%" class="inflection-table"
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | infinitive
| {infinitive}
| {infinitive2}
|-
! style="font-size:80%;" | indicative mood
! style="font-size:80%; background-color:#EFEFFF" | present tense
! style="font-size:80%; background-color:#EFEFFF" | past tense
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | first person singular
| {1sg_pres_indc}
| {1sg_past_indc}
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | second person singular
| {2sg_pres_indc}
| {2sg_past_indc}
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | third person singular
| {3sg_pres_indc}
| {3sg_past_indc}
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | plural
| {pl_pres_indc}
| {pl_past_indc}
|-
! style="font-size:80%;" | subjunctive
! style="font-size:80%; background-color:#EFEFFF" | present tense
! style="font-size:80%; background-color:#EFEFFF" | past tense
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | singular
| {sg_pres_subj}
| {sg_past_subj}
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | plural
| {pl_pres_subj}
| {pl_past_subj}
|-
! style="font-size:80%;" | imperative
! style="font-size:80%; background-color:#EFEFFF" colspan="2" |
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | singular
| colspan="2" | {sg_impr}
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" | plural
| colspan="2" | {pl_impr}
|-
! style="font-size:80%;" | participle
! style="font-size:80%; background-color:#EFEFFF" | present
! style="font-size:80%; background-color:#EFEFFF" | past
|-
! style="font-size:90%; background-color:#FFFFE0; text-align: left" |
| {pres_ptc}
| {past_ptc}
|{\cl}</div></div>]=]
return strutils.format(table, table_args)
end
function export.make_table(frame)
local parent_args = frame:getParent().args
local params = {
= {default = "—"},
= {},
= {},
= {},
}
for slot, _ in pairs(slots_and_accel) do
params = {}
end
local args = require("Module:parameters").process(parent_args, params)
return make_table(args)
end
local function vernerize_cons(suf, verner)
if not verner then
return suf
end
local first_cons, cons = rmatch(suf, "^(.*)()$")
if not first_cons then
return suf
end
if cons == "s" then
cons = "r"
elseif cons == "þ" or cons == "ð" then
cons = "d"
elseif cons == "h" then
cons = "g"
else
error("Internal error in vernerize_cons(): Unexpected suffix " .. suf)
end
return first_cons .. cons
end
local function depalatalize_final_cons_before_cons(word)
if word:find("sċ$") then
return word
elseif word:find("nċġ$") then
-- crinċġan etc.
return gsub(word, "nċġ$", "ng")
else
return rsub(word, "(?)$", {
= "c",
= "nc",
= "cc",
= "ġc",
= "ng",
= "cg",
-- ġ and ġġ stay as-is
})
end
end
local function depalatalize_final_cons_before_back_vowel(word)
local word = depalatalize_final_cons_before_cons(word)
return gsub(word, "ġ$", "g")
end
local function palatalize_final_cons(word)
return rsub(word, "(?)$", {
= "ċ",
= "ċċ",
= "ċġ",
= "ġ",
= "gċ", -- ??
= "ċġ",
})
end
-- Add an ending that begins with a consonant onto a stem, making adjustments
-- as necessary when two consonants come together. Currently recognizes only
-- the three endings "st", "þ" and "d".
local function construct_cons_stem_ending(stem, ending)
-- If the stem ends in a geminate, reduce to single consonant
-- (e.g. fyll-, sett-).
local origstem = stem
local base, final_geminated = rmatch(stem, "^(.-)(" .. non_vowel_c .. ")%2$")
if base then
stem = base .. final_geminated
end
stem = depalatalize_final_cons_before_cons(stem)
if ending == "st" then
-- For 2sg:
-- cyssan + -st -> cyst, tǣsan + -st -> tǣst
-- settan + -st -> setst, myntan + -st -> myn(t)st (?), restan + -st -> restst/rest (?)
-- bǣdan + -st -> bǣtst, sendan + -st -> sen(t)st
-- cȳþan + -st -> cȳst, cwiþ- + -st -> cwist
-- wiex- + -st -> wiext
-- drenċan + -st -> drencst
-- senġan + -st -> sengst
if stem:find("s$") then
return stem .. "t"
elseif stem:find("$") then
if rfind(stem, vowel_c .. "$") then
return gsub(stem, "$", "tst")
elseif rfind(stem, "s$") then
return gsub(stem, "s$", "st")
else
return {gsub(stem, "$", "st"), gsub(stem, "$", "tst")}
end
elseif rfind(stem, "$") then
return rsub(stem, "$", "st")
elseif stem:find("x$") then
return stem .. "t"
else
return stem .. "st"
end
elseif ending == "þ" then
-- For 3sg:
-- cyssan + -þ -> cyst, tǣsan + -þ -> tǣst
-- settan + -þ -> set(t), myntan + -þ -> mynt, restan + -þ -> rest
-- bǣdan + -þ -> bǣt(t), sendan + -þ -> sent
-- cȳþan + -þ -> cȳþ(þ), cwiþ- + -þ -> cwiþ(þ)
-- wiex- + -þ -> wiext
-- drenċan + -þ -> drencþ
-- senġan + -þ -> sengþ
if rfind(stem, vowel_c .. "$") then
return {gsub(stem, "$", "tt"), gsub(stem, "$", "t")}
elseif stem:find("$") then
return gsub(stem, "$", "t")
elseif stem:find("$") then
return stem .. "t"
elseif rfind(stem, "$") then
return {rsub(stem, "$", "þþ"), stem}
else
return stem .. "þ"
end
elseif ending == "d" then
-- For past:
-- cyssan + -de -> cyste, tǣsan + -de -> tǣsde
-- settan + -de -> sette, myntan + -de -> mynte, restan + -de -> reste, mētan + -de -> mētte
-- bǣdan + -de -> bǣdde, sendan + -de -> sende, hreddan + -de -> hredde
-- cȳþan + -de -> cȳþde (later cȳdde), ġeorwirþan + -de -> ġeorwirþde, sċeþþan + -de -> sċeþte
-- (? Bosworth-Toller has only sċeþede, and has pæþde for *pæþte from pæþþan)
-- līexan + -de -> līexte
-- pyffan + -de -> pyfte, ġelīefan + -de -> ġelīefde
-- drenċan + -de -> drencte
-- senġan + -de -> sengde
-- cīepan + -de -> cīepte, clyppan + -de -> clypte
-- spillan + -de -> spilde, cierran + -de -> cierde, wemman + -de -> wemde, etc.
if rfind(stem, vowel_c .. "t$") then
return stem .. "t"
elseif rfind(stem, vowel_c .. "d$") then
return stem .. "d"
elseif stem:find("$") then
return stem
elseif rfind(stem, always_unvoiced_cons_c .. "$") or rfind(origstem, unvoiced_cons_c .. "$") then
return stem .. "t"
else
return stem .. "d"
end
else
error("Unrecognized ending: '" .. ending .. "'")
end
end
-- Default function for combining a stem and an ending. This makes no adjustments
-- to the result other than returning an optional variant ending in -h if the result
-- ends in -g. Example: stīgan preterite stāg or stāh. (Does not apply to a form
-- ending in -ġ.) If adjustments are necessary at the stem/ending boundary, use e.g.
-- construct_cons_stem_ending.
local function default_construct_stem_ending(stem, ending)
local form = stem .. ending
if form:find("g$") and not form:find("g$") then
return {form, gsub(form, "g$", "h")}
else
return form
end
end
local function add_form_to_slot(args, slot, form)
if not args then
args = {}
end
if type(form) == "string" then
m_table.insertIfNot(args, form)
else
for _, f in ipairs(form) do
m_table.insertIfNot(args, f)
end
end
end
local function add_ending_with_prefix(args, slot, pref, stems, ending, construct_stem_ending)
construct_stem_ending = construct_stem_ending or default_construct_stem_ending
if type(stems) ~= "table" then
stems = {stems}
end
for _, stem in ipairs(stems) do
local form = construct_stem_ending(pref and pref .. stem or stem, ending)
add_form_to_slot(args, slot, form)
end
end
local function add_ending(args, slot, stems, ending, construct_stem_ending)
add_ending_with_prefix(args, slot, nil, stems, ending, construct_stem_ending)
end
local function construct_optional_ge_stem_ending(stem, ending)
return "(])]"
end
local function make_non_past(args, presa, presefin, presenfin, pres23, impsg, pp, with_ge)
add_ending(args, "infinitive", presa, "n")
add_ending(args, "infinitive2", presenfin, "nne")
add_ending(args, "1sg_pres_indc", presefin, "")
add_ending(args, "2sg_pres_indc", pres23, "st", construct_cons_stem_ending)
add_ending(args, "3sg_pres_indc", pres23, "þ", construct_cons_stem_ending)
add_ending(args, "pl_pres_indc", presa, "þ")
add_ending(args, "sg_pres_subj", presefin, "")
add_ending(args, "pl_pres_subj", presefin, "n")
add_ending(args, "sg_impr", impsg, "")
add_ending(args, "pl_impr", presa, "þ")
add_ending(args, "pres_ptc", presenfin, "nde")
if with_ge then
add_ending(args, "past_ptc", pp, "", construct_optional_ge_stem_ending)
else
add_ending(args, "past_ptc", pp, "")
end
end
local function make_strong_past(args, pref, pastsg, pastpl)
add_ending_with_prefix(args, "1sg_past_indc", pref, pastsg, "")
add_ending_with_prefix(args, "2sg_past_indc", pref, pastpl, "e")
add_ending_with_prefix(args, "3sg_past_indc", pref, pastsg, "")
add_ending_with_prefix(args, "pl_past_indc", pref, pastpl, "on")
add_ending_with_prefix(args, "sg_past_subj", pref, pastpl, "e")
add_ending_with_prefix(args, "pl_past_subj", pref, pastpl, "en")
end
local function make_strong(presa, prese, pres23, impsg, pastsg, pastpl, pp, with_ge)
local args = {}
make_non_past(args, presa, prese, prese, pres23, impsg, pp, with_ge)
make_strong_past(args, nil, pastsg, pastpl)
return args
end
local function make_weak_past(args, pref, past)
add_ending_with_prefix(args, "1sg_past_indc", pref, past, "e")
add_ending_with_prefix(args, "2sg_past_indc", pref, past, "est")
add_ending_with_prefix(args, "3sg_past_indc", pref, past, "e")
add_ending_with_prefix(args, "pl_past_indc", pref, past, "on")
add_ending_with_prefix(args, "sg_past_subj", pref, past, "e")
add_ending_with_prefix(args, "pl_past_subj", pref, past, "en")
end
local function make_weak(presa, presefin, presenfin, pres23, impsg, past, pp, with_ge)
local args = {}
make_non_past(args, presa, presefin, presenfin, pres23, impsg, pp, with_ge)
make_weak_past(args, nil, past)
return args
end
local strong_verbs = {}
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)ī(" .. cons_c .. "+)an$")
if pref then
-- bīdan "await", ācwīnan "dwindle away", sċīnan "shine", spīwan "spew, spit", etc.;
-- stīgan "ascend" (þū stīġst, stāg/stāh ,
-- stigon, stiġen); blīcan "shine" (þū blīcst/blīċest)
data.pres23 = pref .. "ī" .. palatalize_final_cons(suf)
if suf == "g" then
data.impsg = pref .. "īġ"
else
data.impsg = pref .. "ī" .. suf
end
-- ġīnan "yawn" (gān, ġinon, ġinen)
data.pastsg = depalatalize_final_cons_before_back_vowel(pref) .. "ā" .. suf
-- snīþan "cut" -> snidon; sċrīþan "go, proceed" -> sċridon
-- (but not mīþan "avoid", wrīþan "twist")
local pastsuf = vernerize_cons(suf, data.verner)
data.pastpl = pref .. "i" .. pastsuf
if pastsuf == "g" then
data.pp = pref .. "iġen"
else
data.pp = data.pastpl .. "en"
end
return
end
pref = rmatch(data.inf, "^(.-)on$")
if pref then
-- tēon/tīon "accuse" < *tīhanan, similarly lēon "lend" < *līhwanan,
-- sēon "strain" < *sīhwanan, þēon "thrive" < *þinhanan (originally strong 3),
-- wrēon < *wrīhanan. Beware of homonyms e.g. tēon "pull, draw" (strong 2) < *teuhanan,
-- tēon "make, create" (weak) ?< *tīhanan (strong);
-- þēon/þēowan/þȳ(g)(a)n "press" (weak) < *þunhijanan;
-- sēon "see" (strong 5) < *sehwanan
data.pres23 = pref .. "īeh"
data.impsg = gsub(data.inf, "n$", "h")
data.pastsg = pref .. "āh"
if rfind(pref, "$") then
-- þēon "thrive", has remnant strong 3 parts
data.pastpl = {pref .. "ig", pref .. "ung"}
data.pp = {pref .. "iġen", pref .. "ungen"}
else
data.pastpl = pref .. "ig"
if pref:find("s$") then
-- sēon "strain" alt past part siwen
data.pp = {pref .. "iġen", pref .. "iwen"}
else
data.pp = pref .. "iġen"
end
end
return
end
end
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)ēo(" .. cons_c .. "+)an$")
if pref then
-- bēodan "command", crēopan "creep"; rēocan "smoke, reek" (þū rīecst/rīeċest);
-- drēogan "endure" (þū drīeġst, drēag/drēah ,
-- drugon, drogen)
data.pres23 = pref .. "īe" .. palatalize_final_cons(suf)
data.impsg = pref .. "ēo" .. suf
data.pastsg = pref .. "ēa" .. suf
-- ġēotan "pour" (ġēat, guton, goten); ċēosan "choose" (ċēas, curon, coren)
local pastpref = depalatalize_final_cons_before_back_vowel(pref)
-- ċēosan "choose" -> curon; forlēosan "lose" -> forluron; sēoþan "boil" -> sudon
-- (but not ābrēoþan "perish, ruin")
local pastsuf = vernerize_cons(suf, data.verner)
data.pastpl = pastpref .. "u" .. pastsuf
data.pp = pastpref .. "o" .. pastsuf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)ū(" .. cons_c .. "+)an$")
if pref then
-- sċūfan "shove"; brūcan "use" (þū brīecst/brīeċest);
-- būgan "bend" (þū bīeġst, bēag/bēah ,
-- bugon, bogen)
data.pres23 = pref .. "ȳ" .. palatalize_final_cons(suf)
data.impsg = pref .. "ū" .. suf
-- could have palatalization here, but no known examples
data.pastsg = pref .. "ēa" .. suf
-- no known examples of Vernerization, but just in case
local pastsuf = vernerize_cons(suf, data.verner)
data.pastpl = pref .. "u" .. pastsuf
data.pp = pref .. "o" .. pastsuf .. "en"
return
end
local pref = rmatch(data.inf, "^(.-)ēon$")
if pref then
-- tēon "pull, draw" < *teuhanan, flēon "flee"
-- Beware of homonyms, e.g. tēon/tīon "accuse" (strong 1) < *tīhanan,
-- tēon "make, create" (weak) ?< *tīhan (strong)
data.pres23 = pref .. "īeh"
data.impsg = gsub(data.inf, "n$", "h")
data.pastsg = pref .. "ēah"
-- no examples where depalatalization is needed
data.pastpl = pref .. "ug"
data.pp = pref .. "ogen"
return
end
end
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)i(" .. cons_c .. "+)an$")
if pref then
-- bindan "bind", climban "climb", ġelimpan "happen", winnan "win",
-- swimman "swim", etc.; ācwincan "vanish" (þū ācwincst/ācwinċest);
-- cringan (þū cringst/crinġest), variant crinċġan (þū cringst/crinċġest)
data.pres23 = pref .. "i" .. palatalize_final_cons(suf)
data.impsg = pref .. "i" .. suf
-- onġinnan "begin" (ongann, ongunnon, ongunnen), ċimban "join"
local pastpref = depalatalize_final_cons_before_back_vowel(pref)
-- no Verner alternation here; expected #fīþan, #fōþ, #fundon <
-- *finþanan, *fanþ, *fundund regularized into findan, fand, fundon;
-- but depalatalize to handle crin(ċ)ġan past crang/crungon/crungen
-- and (maybe?) variant crinċan past cranc/cruncon/cruncen
local pastsuf = depalatalize_final_cons_before_cons(suf)
data.pastsg = pastpref .. "a" .. pastsuf
data.pastpl = pastpref .. "u" .. pastsuf
data.pp = pastpref .. "u" .. pastsuf .. "en"
return
end
local pref, vowel, suf = rmatch(data.inf, "^(.-)(ie)(l" .. cons_c .. "+)an$")
if not pref then
-- ġeldan/ġildan/ġyldan variants of ġieldan; helpan/bellan/delfan etc.
pref, vowel, suf = rmatch(data.inf, "^(.-)()(l" .. cons_c .. "+)an$")
end
if not pref then
pref, vowel, suf = rmatch(data.inf, "^(.-)(eo)(" .. cons_c .. "+)an$")
end
if pref then
-- helpan "help" (þū hilpst), bellan "bellow", beteldan "cover", delfan "dig",
-- sweltan "die", etc.; belgan "swell with anger" (þū bielġst, bealg/bealh
-- )
--
-- ġieldan "yield, pay" (þū ġiel(t)st, hē ġieldeþ/ġielt, ġeald, guldon, golden),
-- ġiellan "yell", ġielpan "boast"
--
-- weorpan "throw" (þū wierpst), feohtan "fight", sċeorfan "gnaw";
-- āseolcan "languish" (þū āsielcst/āsielċest), beorgan "protect"
-- (þū bierġst, bearg/bearh )
data.pres23 = pref .. (vowel == "e" and "i" or vowel == "eo" and "ie" or vowel) .. palatalize_final_cons(suf)
data.impsg = pref .. vowel .. suf
data.pastsg = pref .. "ea" .. suf
-- ġieldan etc. (see above)
local pastpref = depalatalize_final_cons_before_back_vowel(pref)
-- weorþan -> wurdon
local pastsuf = vernerize_cons(suf, data.verner)
data.pastpl = pastpref .. "u" .. pastsuf
data.pp = pastpref .. "o" .. pastsuf .. "en"
return
end
local pref = rmatch(data.inf, "^(.-)eġdan$")
if pref then
-- breġdan "brandish" (þū breġdest, hē breġdeþ, bræġd/brǣd, brugdon, brogden)
-- streġdan "strew" (like breġdan)
data.pres23 = pref .. "eġde"
data.impsg = pref .. "eġd"
data.pastsg = {pref .. "æġd", pref .. "ǣd"}
data.pastpl = pref .. "ugd"
data.pp = pref .. "ogden"
return
end
local pref, suf = rmatch(data.inf, "^(.-)(ie?rn)an$")
if not pref then
pref, suf = rmatch(data.inf, "^(.-)(yrn)an$")
end
if pref then
-- biernan/birnan/byrnan "burn" < *brinnanan (þū biernst, barn/born/bearn, burnon, burnen)
-- iernan/irnan/yrnan "run" < *rinnan (like biernan)
data.pres23 = pref .. suf
data.impsg = data.pres23
data.pastsg = {pref .. "arn", pref .. "orn", pref .. "earn"}
data.pastpl = pref .. "urn"
data.pp = pref .. "urnen"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)()rnan$")
if pref then
-- murnan "mourn" (þū myrnst, mearn, murnon, — but BT documents mornen)
-- spurnan/spornan "spurn" (þū spyrnst, spearn, spurnon, spornen)
data.pres23 = pref .. "yrn"
data.impsg = pref .. vowel .. "rn"
data.pastsg = pref .. "earn"
data.pastpl = pref .. "urn"
data.pp = pref .. "ornen"
return
end
local pref, suf = rmatch(data.inf, "^(.-)e(r" .. cons_c .. "+)an$")
if pref then
-- berstan "burst" < *brestanan (þū birst, hē birsteþ/birst, bærst, burston, borsten)
-- þersċan "thrash, thresh" < *þreskanan (þū þirsċst, hē þirsċeþ, þærsċ, þursċon, þorsċen)
data.pres23 = pref .. "i" .. suf
data.impsg = pref .. "e" .. suf
data.pastsg = pref .. "æ" .. suf
data.pastpl = pref .. "u" .. suf
data.pp = pref .. "o" .. suf .. "en"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)fr()ġnan$")
if pref then
-- friġnan "ask", variant freġnan
data.pres23 = {pref .. "friġne", pref .. "friġn"}
data.impsg = pref .. "fr" .. vowel .. "ġn"
data.pastsg = pref .. "fræġn"
data.pastpl = pref .. "frugn"
data.pp = pref .. "frugnen"
return
end
local pref = rmatch(data.inf, "^(.-)frīnan$")
if pref then
-- frīnan "ask" variant of friġnan
data.pres23 = {pref .. "frīne", pref .. "frīn"}
data.impsg = pref .. "frīn"
data.pastsg = pref .. "frān"
data.pastpl = pref .. "frūn"
data.pp = pref .. "frūnen"
return
end
local pref = rmatch(data.inf, "^(.-)fēolan$")
if pref then
-- fēolan "enter, penetrate"
data.pres23 = {pref .. "fielh", pref .. "filh"}
data.impsg = pref .. "feolh"
data.pastsg = pref .. "fealh"
data.pastpl = {pref .. "fǣl", pref .. "fulg", pref .. "fūl"}
data.pp = {pref .. "folgen", pref .. "fōlen"}
return
end
end
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)ie(" .. cons_c .. ")an$")
if pref then
-- sċieran "shear"
data.pres23 = {pref .. "ie" .. suf .. "e", pref .. "ie" .. suf}
data.impsg = pref .. "ie" .. suf
-- no Verner alternation or depalatalization here
data.pastsg = pref .. "ea" .. suf
data.pastpl = pref .. "ēa" .. suf
data.pp = pref .. "o" .. suf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)e(" .. cons_c .. ")an$")
if pref then
-- beran "bear, carry", cwelan "die", brecan "break" (þū bricst/briċest), etc.
if suf == "r" or suf == "l" then
data.pres23 = {pref .. "i" .. suf .. "e", pref .. "i" .. suf}
else
data.pres23 = pref .. "i" .. palatalize_final_cons(suf)
end
data.impsg = pref .. "e" .. suf
-- no Verner alternation or depalatalization here
data.pastsg = pref .. "æ" .. suf
data.pastpl = pref .. "ǣ" .. suf
data.pp = pref .. "o" .. suf .. "en"
return
end
-- Next two are irregular but occur with so many prefixes that we special-case them here.
local pref = rmatch(data.inf, "^(.-)cuman$")
if pref then
-- cuman "come"
data.pres23 = {pref .. "cyme", pref .. "cym"}
data.impsg = pref .. "cum"
data.pastsg = {pref .. "cōm", pref .. "cwōm"}
data.pastpl = data.pastsg
data.pp = {pref .. "cumen", pref .. "cymen"}
return
end
local pref = rmatch(data.inf, "^(.-)niman$")
if pref then
-- niman "take"
data.pres23 = {pref .. "nime", pref .. "nim"}
data.impsg = pref .. "nim"
data.pastsg = pref .. "nōm"
data.pastpl = data.pastsg
data.pp = pref .. "numen"
return
end
end
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)ie(" .. cons_c .. ")an$")
if not pref then
pref, suf = rmatch(data.inf, "^(.-ġ)(" .. cons_c .. ")an$")
end
if pref then
-- ġiefan "give", forġietan "forget"
data.pres23 = pref .. "ie" .. suf
data.impsg = data.pres23
data.pastsg = pref .. "ea" .. suf
data.pastpl = pref .. "ēa" .. suf
data.pp = pref .. "e" .. suf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)e(" .. cons_c .. ")an$")
if suf == "g" then
-- wegan "carry"; special-case
data.pres23 = pref .. "iġ"
data.impsg = pref .. "eġ"
data.pastsg = pref .. "æġ"
data.pastpl = {pref .. "ǣg", pref .. "āg"}
data.pp = pref .. "eġen"
return
elseif pref then
-- metan "measure", sprecan "speak", cnedan "knead", wefan "weave", etc.
data.pres23 = pref .. "i" .. palatalize_final_cons(suf)
data.impsg = pref .. "e" .. suf
if suf == "t" and not pref:find("m$") and not pref:find("ġ$") then
-- etan "eat", fretan "devour", compounds; exclude metan "measure",
-- ġetan (potential variant of ġietan)
data.pastsg = pref .. "ǣ" .. suf
else
data.pastsg = pref .. "æ" .. suf
end
-- cweþan "say" -> cwǣdon, wesan "be" -> wǣron
-- (but not ġenesan "be saved", lesan "collect, gather")
local pastsuf = vernerize_cons(suf, data.verner)
data.pastpl = pref .. "ǣ" .. pastsuf
if data.inf:find("drepan$") then
-- Special-case drepan "strike, slay"; Wright lists brecan here with
-- pp only brocen, but that just makes it a strong-4 verb and that's
-- where it's normally listed in dictionaries
data.pp = {pref .. "epen", pref .. "open"}
else
data.pp = pref .. "e" .. pastsuf .. "en"
end
return
end
local pref, last_cons = rmatch(data.inf, "^(.-)i()%2an$")
if pref then
-- biddan "pray", sittan "sit"
data.pres23 = pref .. "i" .. last_cons
data.impsg = data.pres23 .. "e"
data.pastsg = pref .. "æ" .. last_cons
data.pastpl = pref .. "ǣ" .. last_cons
data.pp = pref .. "e" .. last_cons .. "en"
return
end
local pref = rmatch(data.inf, "^(.-)iċġe?an$")
if pref then
-- liċġan "lie down", þiċġan "receive", friċġan "ask, inquire"
data.pres23 = pref .. "iġ"
data.impsg = data.pres23 .. "e"
if rfind(data.inf, "iċġe?an$") then
data.pastsg = {pref .. "eah", pref .. "ah"}
else
data.pastsg = pref .. "æġ"
end
data.pastpl = {pref .. "ǣg", pref .. "āg"}
if data.inf:find("friċġe?an$") then
data.pp = {pref .. "iġen", pref .. "ugen"}
else
data.pp = pref .. "eġen"
end
return
end
local pref = rmatch(data.inf, "^(.-)ēon$")
if pref then
-- sēon "see" < *sehwanan, ġefēon "rejoice" < *gafehanan, plēon "risk" < *plehanan
data.pres23 = pref .. "ieh"
data.impsg = pref .. "eoh"
data.pastsg = pref .. "eah"
if pref:find("s$") then
-- sēon "see"
data.pastpl = pref .. "āw"
data.pp = pref .. "ewen"
else
data.pastpl = pref .. "ǣg"
data.pp = pref .. "eġen"
end
return
end
end
strong_verbs = function(data)
local pref, suf = rmatch(data.inf, "^(.-)ea(" .. cons_c .. "+)an$")
if pref then
-- sċ(e)acan "shake", sċ(e)afan "shave, scrape"
data.pres23 = pref .. "ea" .. suf
data.impsg = {pref .. "a" .. suf, data.pres23}
data.pastsg = {pref .. "ō" .. suf, pref .. "eō" .. suf}
data.pastpl = data.pastsg
data.pp = {pref .. "a" .. suf .. "en", pref .. "ea" .. suf .. "en"}
return
end
local pref, vowel, suf = rmatch(data.inf, "^(.-)(a)(" .. cons_c .. "+)an$")
if not pref then
-- stondan variant of standan, sponan variant of spanan
pref, vowel, suf = rmatch(data.inf, "^(.-)(o)(n" .. cons_c .. "*)an$")
end
if not pref then
-- wæsċan/wasċean/wæsċean variant of wasċan
pref, vowel, suf = rmatch(data.inf, "^(.-)()(sċ" .. cons_c .. "*)e?an$")
end
if suf == "g" then
-- gnagan "gnaw", dragan "draw"
data.pres23 = pref .. "æġ"
data.impsg = pref .. "ag"
data.pastsg = pref .. "ōg"
data.pastpl = data.pastsg
data.pp = {pref .. "æġen", pref .. "agen"}
return
elseif suf == "nd" and pref:find("st$") then
-- standan/stondan "stand"
data.pres23 = pref .. "end"
data.impsg = pref .. vowel .. "nd"
data.pastsg = pref .. "ōd"
data.pastpl = data.pastsg
data.pp = pref .. vowel .. "nden"
return
elseif suf == "n" and pref:find("sp$") then
-- spanon/sponan "allure"
data.pres23 = {pref .. "ene", pref .. "en"}
data.impsg = pref .. vowel .. "n"
data.pastsg = {pref .. "ōn", pref .. "ēon"} -- has alt class VII past
data.pastpl = data.pastsg
data.pp = pref .. vowel .. "nen"
return
elseif pref then
-- faran "go", alan "grow", bacan "bake", hladan "lade", wasċan "wash", etc.
if suf == "r" or suf == "l" or suf == "sċ" then
data.pres23 = {pref .. "æ" .. suf .. "e", pref .. "æ" .. suf}
else
data.pres23 = pref .. "æ" .. palatalize_final_cons(suf)
end
data.impsg = pref .. "a" .. suf
data.pastsg = pref .. "ō" .. suf
-- Apparently no Verner variation here
data.pastpl = data.pastsg
data.pp = {pref .. "æ" .. suf .. "en", pref .. "a" .. suf .. "en"}
return
end
local pref = rmatch(data.inf, "^(.-)ēan$")
if pref then
-- slēan "strike", flēan "flay", lēan "blame", þwēan "wash"
data.pres23 = pref .. "ieh"
data.impsg = pref .. "eah"
data.pastsg = pref .. "ōg" -- also slōh etc., which will get automatically added
data.pastpl = data.pastsg
data.pp = {pref .. "æġen", pref .. "agen", pref .. "eġen"}
return
end
local pref, last_cons = rmatch(data.inf, "^(.-)i()%2an$")
-- All the j-present verbs have to be handled individually as each has
-- idiosyncrasies.
local pref, last_cons = rmatch(data.inf, "^(.-)hebban$")
if pref then
-- hebban "raise"
data.pres23 = pref .. "hefe"
data.impsg = data.pres23
data.pastsg = pref .. "hōf"
data.pastpl = data.pastsg
data.pp = {pref .. "hæfen", pref .. "hafen", pref .. "hefen"}
return
end
local pref, vowel = rmatch(data.inf, "^(.-)hl(?e?)hhan$")
if pref then
-- hliehhan "laugh"
data.pres23 = pref .. "hl" .. vowel .. "h"
data.impsg = data.pres23
data.pastsg = pref .. "hlōg"
data.pastpl = data.pastsg
data.pp = pref .. "hlæġen"
return
end
local pref, cons = rmatch(data.inf, "^(.-)sċe()%2an$")
if pref then
-- sċeþþan "injure" (for some reason, expected #sċieþþan doesn't occur)
data.pres23 = pref .. "sċe" .. cons .. "e"
data.impsg = data.pres23
data.pastsg = "sċōd"
data.pastpl = data.pastsg
data.pp = "sċeaþen"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)sċ(?e?)ppan$")
if pref then
-- sċieppan "create"
data.pres23 = pref .. "sċ" .. vowel .. "pe"
data.impsg = data.pres23
data.pastsg = {pref .. "sċōp", pref .. "sċeōp"}
data.pastpl = data.pastsg
data.pp = {pref .. "sċeapen", pref .. "sċapen"}
return
end
local pref, vowel = rmatch(data.inf, "^(.-)st()ppan$")
if pref then
-- stæppan "step, go"
data.pres23 = pref .. "st" .. vowel .. "pe"
data.impsg = data.pres23
data.pastsg = pref .. "stōp"
data.pastpl = data.pastsg
data.pp = {pref .. "stæpen", pref .. "stapen"}
return
end
local pref = rmatch(data.inf, "^(.-s)erian$")
if pref then
-- swerian "swear"
data.pres23 = pref .. "ere"
data.impsg = data.pres23
data.pastsg = pref .. "ōr"
data.pastpl = data.pastsg
data.pp = pref .. "oren" -- on the analogy of class IV verbs like beran
return
end
end
strong_verbs = function(data)
-- Type (7a) verbs
local pref = rmatch(data.inf, "^(.-)hātan$")
if pref then
-- hātan "call"
data.pres23 = pref .. "hǣt"
data.impsg = pref .. "hāt"
data.pastsg = {pref .. "hēt", pref .. "hēht"} -- FIXME, indicate latter as poetic
data.pastpl = data.pastsg
data.pp = pref .. "hāten"
return
end
local pref = rmatch(data.inf, "^(.-)lācan$")
if pref then
-- lācan "play"
data.pres23 = pref .. "lǣċ"
data.impsg = pref .. "lāc"
data.pastsg = {pref .. "lēc", pref .. "leolc"} -- FIXME, indicate latter as poetic
data.pastpl = data.pastsg
data.pp = pref .. "lācen"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)sċ(e?ā)dan$")
if not pref then
pref, vowel = rmatch(data.inf, "^(.-)sċ(ēa)dan$")
end
if pref then
-- sċ(e)ādan or sċēadan "separate"
data.pres23 = pref .. "sċēad"
data.impsg = pref .. "sċ" .. vowel .. "d"
data.pastsg = {pref .. "sċēd", pref .. "sċēad"}
data.pastpl = data.pastsg
data.pp = pref .. "sċ" .. vowel .. "den"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)lǣtan$")
if pref then
-- lǣtan "let, allow"
data.pres23 = pref .. "lǣt"
data.impsg = pref .. "lǣt"
data.pastsg = {pref .. "lēt", pref .. "leort"} -- FIXME, indicate latter as poetic
data.pastpl = data.pastsg
data.pp = pref .. "lǣten"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)ondrǣdan$")
if pref then
-- ondrǣdan "dread, fear"
data.pres23 = pref .. "ondrǣd"
data.impsg = pref .. "ondrǣd"
data.pastsg = {pref .. "ondrēd", pref .. "ondreord"} -- FIXME, indicate latter as poetic
data.pastpl = data.pastsg
make_weak_past(data.extraforms, pref, "ondrǣdd")
data.pp = pref .. "ondrǣden"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)rǣdan$")
if pref then
-- rǣdan "advise"
data.pres23 = pref .. "rǣd"
data.impsg = pref .. "rǣd"
-- NOTE: Also (mostly) has weak past rǣdde and pp (ġe)rǣdd; can be handled
-- by declaring the verb as both weak 1b and strong 7.
data.pastsg = {pref .. "rēd", pref .. "reord"} -- FIXME, indicate latter as poetic
data.pastpl = data.pastsg
data.pp = pref .. "rǣden"
return
end
local pref, vowel = rmatch(data.inf, "^(.-)slǣpan$")
if pref then
-- slǣpan "sleep"
data.pres23 = pref .. "slǣp"
data.impsg = pref .. "slǣp"
data.pastsg = pref .. "slēp"
data.pastpl = data.pastsg
make_weak_past(data.extraforms, pref, "slǣpt")
data.pp = pref .. "slǣpen"
return
end
local pref, main = rmatch(data.inf, "^(.-)(grt)an$")
if pref then
-- grǣtan "wail"
data.pres23 = pref .. main
data.impsg = pref .. main
data.pastsg = pref .. "grēt"
data.pastpl = data.pastsg
data.pp = pref .. main .. "en"
return
end
local pref = rmatch(data.inf, "^(.-)blandan$")
if pref then
-- blandan "mix"
data.pres23 = pref .. "blend"
data.impsg = pref .. "bland"
data.pastsg = pref .. "blēnd"
data.pastpl = data.pastsg
data.pp = pref .. "blanden"
return
end
local pref = rmatch(data.inf, "^(.-)ōn$")
if pref then
-- fōn "seize", hōn "hang"
data.pres23 = pref .. "ēh"
data.impsg = pref .. "ōh"
data.pastsg = pref .. "ēng"
data.pastpl = data.pastsg
data.pp = {pref .. "angen"}
return
end
-- Type (7b) verbs
local pref = rmatch(data.inf, "^(.-)annan$")
if pref then
-- bannan "summon", spannan "join, clasp"
data.pres23 = pref .. "enn"
data.impsg = pref .. "ann"
data.pastsg = {pref .. "ēonn", pref .. "ēon"}
data.pastpl = data.pastsg
data.pp = pref .. "annen"
return
end
local pref = rmatch(data.inf, "^(.-)gangan$")
if pref then
-- gangan "go"
data.pres23 = pref .. "geng"
data.impsg = pref .. "gang"
data.pastsg = {pref .. "ġēng", pref .. "ġīeng"}
data.pastpl = data.pastsg
data.pp = pref .. "gangen"
return
end
local pref, suf = rmatch(data.inf, "^(.-)ea(" .. cons_c .. "+)an$")
if pref then
-- fealdan "fold", feallan "fall", healdan "hold", stealdan "possess",
-- wealcan "roll", wealdan "rule", weallan "boil", weaxan "grow"
data.pres23 = pref .. "ie" .. palatalize_final_cons(suf)
data.impsg = pref .. "ea" .. suf
data.pastsg = pref .. "ēo" .. suf
data.pastpl = data.pastsg
data.pp = pref .. "ea" .. suf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)ā(" .. cons_c .. "+)an$")
if pref then
-- blāwan "blow", cnāwan "know", crāwan "crow", māwan "mow", sāwan "sow",
-- swāpan "sweep", þrāwan "turn, twist", wāwan "blow"
data.pres23 = pref .. "ǣ" .. palatalize_final_cons(suf)
data.impsg = pref .. "ā" .. suf
data.pastsg = pref .. "ēo" .. suf
data.pastpl = data.pastsg
data.pp = pref .. "ā" .. suf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)ēa(" .. cons_c .. "+)an$")
if pref then
-- bēatan "beat", āhnēapan "pluck off", hēawan "hew", hlēapan "leap"
data.pres23 = pref .. "īe" .. palatalize_final_cons(suf)
data.impsg = pref .. "ēa" .. suf
data.pastsg = pref .. "ēo" .. suf
data.pastpl = data.pastsg
data.pp = pref .. "ēa" .. suf .. "en"
return
end
local pref, suf = rmatch(data.inf, "^(.-)ō(" .. cons_c .. "+)an$")
if pref then
if suf == "g" and pref:find("sw$") then
-- swōgan "sound"
data.pres23 = pref .. "ēġ"
data.impsg = pref .. "ōg"
data.pastsg = {} -- no preterite
data.pastpl = {}
data.pp = pref .. "ōgen"
return
end
if suf == "c" and pref:find("fl$") or suf == "t" and rfind(pref, "r$") then
-- flōcan "clap, strike", wrōtan "root up"
data.pres23 = pref .. "ē" .. palatalize_final_cons(suf)
data.impsg = pref .. "ō" .. suf
data.pastsg = {} -- no preterite
data.pastpl = {}
data.pp = pref .. "ō" .. suf .. "en"
return
end
-- blōtan "sacrifice", blōwan "bloom, blossom", hrōpan "shout",
-- hwōpan "threaten", flōwan "flow", grōwan "grow", hlōwan "low, bellow",
-- spōwan "succeed"; also rōwan "row", which has alt pret pl rēon
data.pres23 = pref .. "ē" .. palatalize_final_cons(suf)
data.impsg = pref .. "ō" .. suf
data.pastsg = pref .. "ēo" .. suf
data.pastpl = data.pastsg
data.pp = pref .. "ō" .. suf .. "en"
if (suf == "w" or suf == "ƿ") and pref:find("r$") and not pref:find("gr$") then
-- rōwan "row"
data.extraforms = {pref .. "ēon"}
end
return
end
local pref = rmatch(data.inf, "^(.-)ēpan$")
if pref then
-- wēpan "weep"; j-present
data.pres23 = pref .. "ēp"
data.impsg = pref .. "ēp"
data.pastsg = pref .. "ēop"
data.pastpl = data.pastsg
data.pp = pref .. "ōpen"
return
end
end
local weak_verbs = {}
weak_verbs = function(data)
local pref = rmatch(data.inf, "^(.-)ian$")
if pref then
data.pres23 = pref .. "e"
data.impsg = data.pres23
data.past = data.pres23 .. "d"
data.pp = data.past
return
end
local pref, last_cons = rmatch(data.inf, "^(.-)()%2an$")
if pref then
data.pres23 = pref .. last_cons
data.impsg = data.pres23 .. "e"
data.past = data.pres23 .. last_cons
data.pp = {data.pres23 .. "ed", data.past, data.pres23}
return
end
local pref = rmatch(data.inf, "^(.-)ċġe?an$")
if pref then
data.pres23 = pref .. "ġ"
data.impsg = data.pres23 .. "e"
data.past = data.pres23 .. "d"
data.pp = {data.pres23 .. "ed", data.past}
return
end
local pref = rmatch(data.inf, "^(.-)bban$")
if pref then
-- swebban etc.
data.pres23 = pref .. "fe"
data.impsg = data.pres23
data.past = data.pres23 .. "d"
data.pp = data.past
return
end
local pref, last_cons = rmatch(data.inf, "^(.-)(.)%2an$")
if not pref then
pref, last_cons = rmatch(data.inf, "^(.-)(ċ)ċean$")
end
if pref then
data.pres23 = pref .. last_cons .. "e"
data.impsg = data.pres23
data.past = data.pres23 .. "d"
data.pp = data.past
return
end
end
weak_verbs = function(data)
local pref, cons = rmatch(data.inf, "^(.-)()an$")
if pref then
-- ġierwan, hierwan, nierwan, sierwan, smierwan, wielwan (?)
data.pres23 = pref .. "e"
data.impsg = data.pres23
data.past = data.pres23 .. "d"
data.pp = {pref .. cons .. "ed", pref .. "ed"}
return
end
local pref = rmatch(data.inf, "^(.-" .. cons_c .. ")an$")
if pref and not pref:find("$") and not pref:find("rl$") and not rfind(pref, "(" .. cons_c .. ")%1$") then
-- hyngran, dīeglan, bīecnan, þrysman, etc.
data.pres23 = pref .. "e"
data.impsg = data.pres23
local vowel = rmatch(pref, "^.-(" .. vowel_c .. "+)" .. single_cons_c .. "$")
if vowel and not ends_in_long_vowel(vowel) then
-- efnan, bytlan, eġlan, ræfnan, seġlan, þrysman; form without -ed is older
data.past = {pref .. "d", pref .. "ed"}
else
-- dīeglan, forglendran, wrixlan, frēfran, timbran, symblan, etc.
data.past = pref .. "ed"
end
data.pp = pref .. "ed"
return
end
if data.inf:find("ēan$") or rfind(data.inf, vowel_c .. "n$") and not data.inf:find("an$") then
-- contracted verb, e.g. hēan, þēon, tȳn, rȳn, þȳn
-- FIXME, verify in Campbell that all of the following are correct
data.pres23 = data.presa
data.impsg = data.presa
data.past = data.presa .. "d"
data.pp = data.past
return
end
local pref = rmatch(data.inf, "^(.-)an$")
if pref then
data.pres23 = {pref .. "e", pref}
data.impsg = pref
data.past = construct_cons_stem_ending(pref, "d")
data.pp = pref .. "ed"
return
end
end
weak_verbs = function(data)
local weaktype
if data.inf:find("ian$") then
weaktype = "1a"
elseif rfind(data.inf, "(" .. cons_c .. ")%1an$") or data.inf:find("ċċean$") or data.inf:find("cgan$") or data.inf:find("ċġan$") then
local prev = rmatch(data.inf, "^(.-)....$")
if rfind(prev, vowel_c .. "$") and not ends_in_long_vowel(prev) then
weaktype = "1a"
else
weaktype = "1b"
end
else
weaktype = "1b"
end
weak_verbs(data)
end
weak_verbs = function(data)
-- lufian
local pref, suf = rmatch(data.inf, "^(.-)(ian)$")
if not pref then
-- lufiġan, lufeġan, lufiġean, lufeġean (alternative spellings)
pref, suf = rmatch(data.inf, "^(.-)(ġe?an)$")
end
if pref then
data.pres23 = pref .. "a"
data.presenfin = data.prese
data.presefin = suf == "ian" and pref .. "iġe" or data.presenfin
data.impsg = data.pres23
data.past = pref .. "od"
data.pp = data.past
return
end
local pref = rmatch(data.inf, "^(.-)ġe?an$")
if pref then
-- twēoġan, smēaġ(e)an
data.pres23 = pref
data.impsg = data.pres23
data.past = data.pres23 .. "d"
data.pp = data.past
return
end
end
weak_verbs = function(data)
local pref = rmatch(data.inf, "^(.-)abban$")
if pref then
data.prese = pref .. "æbbe"
data.pres23 = pref .. "æf"
data.impsg = pref .. "afa"
data.past = pref .. "æfd"
data.pp = data.past
return
end
local pref = rmatch(data.inf, "^(.-)libban$")
if pref then
-- libban, compounds
data.pres23 = pref .. "leofa"
data.impsg = data.pres23
data.past = pref .. "lifd"
data.pp = data.past
return
end
local pref = rmatch(data.inf, "^(.-)seċġe?an$")
if pref then
-- seċġan, compounds
data.pres23 = pref .. "sæġ"
data.impsg = pref .. "sæġe"
data.past = pref .. "sæġd"
data.pp = data.past
return
end
local pref = rmatch(data.inf, "^(.-)hyċġe?an$")
if pref then
-- hyċġan, compounds
data.pres23 = pref .. "hyġ"
data.impsg = pref .. "hyġe"
data.past = pref .. "hogd"
data.pp = data.past
return
end
end
local function make_irregular_non_past(args, inf, pref, pres1, pres2, pres3, prespl,
presp, subj, impsg, imppl, pp, with_ge)
add_ending(args, "infinitive", inf, "")
add_ending_with_prefix(args, "infinitive2", pref, presp, "ne")
add_ending_with_prefix(args, "1sg_pres_indc", pref, pres1, "")
add_ending_with_prefix(args, "2sg_pres_indc", pref, pres2, "")
add_ending_with_prefix(args, "3sg_pres_indc", pref, pres3, "")
add_ending_with_prefix(args, "pl_pres_indc", pref, prespl, "")
add_ending_with_prefix(args, "sg_pres_subj", pref, subj, "")
add_ending_with_prefix(args, "pl_pres_subj", pref, subj, "n")
add_ending_with_prefix(args, "sg_impr", pref, impsg, "")
add_ending_with_prefix(args, "pl_impr", pref, imppl, "")
add_ending_with_prefix(args, "pres_ptc", pref, presp, "de")
if with_ge then
add_ending_with_prefix(args, "past_ptc", pref, pp, "", construct_optional_ge_stem_ending)
else
add_ending_with_prefix(args, "past_ptc", pref, pp, "")
end
end
-- Construct all preterite-present forms. Each of the arguments can be a single string or list.
-- If a given argument is missing, supply an empty list {}.
-- Arguments:
-- INF: Infinitive.
-- PREF: Prefix to add to all forms other than the infinitive.
-- PRES13: 1st/3rd singular present form.
-- PRES2: 2nd singular present form.
-- PRESPL: Plural present form.
-- PRESP: Present participle stem (up through -en, missing final -de; also used to construct
-- second infinitive by adding -ne)
-- SUBJ: Singular present subjunctive form (also used to construct plural subjunctive by adding -n)
-- IMPSG: 2nd singular imperative form.
-- IMPPL: 2nd plural imperative form.
-- PAST: Stem of past tense.
-- PP: Past participle.
local function make_preterite_present_forms(inf, pref, pres13, pres2, prespl,
presp, subj, impsg, imppl, past, pp, with_ge)
local args = {}
make_irregular_non_past(args, inf, pref, pres13, pres2, pres13, prespl, presp, subj,
impsg, imppl, pp, with_ge)
make_weak_past(args, pref, past)
return args
end
local function make_preterite_present(inf, with_ge)
local pref, vowel = rmatch(inf, "^(.-)()?tan$")
if pref then
return make_preterite_present_forms(
inf, pref, "āt", "āst", vowel .. "ton", vowel .. "ten",
vowel .. "te", vowel .. "te", vowel .. "taþ", {vowel .. "ss", vowel .. "st"},
vowel .. "ten", with_ge)
end
local pref = rmatch(inf, "^(.-)dugan$")
if pref then
return make_preterite_present_forms(
inf, pref, "dēag", "dēaht", "dugon", "dugen", "dyġe", "dyġe", "dugaþ", "doht", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)cunnan$")
if pref then
return make_preterite_present_forms(
inf, pref, "cann", "canst", "cunnon", "cunnen", "cunne",
"cunne", "cunnaþ", "cūþ", "cunnen", with_ge)
end
local pref = rmatch(inf, "^(.-)unnan$")
if pref then
return make_preterite_present_forms(
inf, pref, "ann", "anst", "unnon", "unnen", "unne", "unne", "unnaþ", "ūþ", "unnen", with_ge)
end
local pref = rmatch(inf, "^(.-)urfan$")
if pref then
return make_preterite_present_forms(
inf, pref, "earf", "earft", "urfon", "earfen", "yrfe", "yrfe", "urfaþ", "orft", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)durran$")
if pref then
return make_preterite_present_forms(
inf, pref, "dearr", "dearst", "durron", {}, "dyrre", "dyrre", "durfaþ",
"dorst", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)sċulan$")
if not pref then
pref = rmatch(inf, "^(.-)sċeolan$")
end
if pref then
return make_preterite_present_forms(
inf, pref, "sċeal", "sċealt", "sċulon", {}, "sċyle",
{}, {}, "sċeold", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)munan$")
if pref then
return make_preterite_present_forms(
inf, pref, "man", "manst", "munon", "munen", "myne",
{"mun", "myne"}, "munaþ", "mund", "munen", with_ge)
end
local pref = rmatch(inf, "^(.-)magan$")
if pref then
return make_preterite_present_forms(
inf, pref, "mæġ", "meaht", "magon", "magen", "mæġe", {}, {},
{"meaht", "meht"}, {}, with_ge)
end
local pref = rmatch(inf, "^(.-)nugan$")
if pref then
return make_preterite_present_forms(
inf, pref, "neah", {}, "nugon", {}, "nuge", {}, {}, "noht", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)mōtan$")
if pref then
return make_preterite_present_forms(
inf, pref, "mōt", "mōst", "mōton", {}, "mōte", {}, {}, "mōst", {}, with_ge)
end
local pref = rmatch(inf, "^(.-)āgan$")
if pref then
return make_preterite_present_forms(
inf, pref, "āh", "āhst", "āgon", "āgen", "āge", "āge", "āgaþ", "āht", "āgen", with_ge)
end
error("Unrecognized preterite-present verb: " .. inf)
end
local function make_irregular(inf, with_ge)
local args = {}
local pref, cons = rmatch(inf, "^(.-)()esan$")
if pref then
make_irregular_non_past(args, inf, pref, "eom", "eart", "is", {"sind", "sindon"},
cons .. "esen", "sīe", cons .. "es", cons .. "esaþ", {}, with_ge)
make_strong_past(args, pref, cons .. "æs", cons .. "ǣr")
return args
end
local pref = rmatch(inf, "^(.-)nesan$")
if pref then
make_irregular_non_past(args, inf, pref, "neom", "neart", "nis", {"ne sind", "ne sindon"},
"nesen", "ne sīe", "nes", "nesaþ", {}, with_ge)
make_strong_past(args, pref, "næs", "nǣr")
return args
end
local pref, vowel = rmatch(inf, "^(.-)b(o)n$")
if pref then
make_irregular_non_past(args, inf, pref, "b" .. vowel, "bist", "biþ", "b" .. vowel .. "þ",
"b" .. vowel .. "n", "b" .. vowel, "b" .. vowel, "b" .. vowel .. "þ", "b" .. vowel .. "n", with_ge)
return args
end
local pref = rmatch(inf, "^(.-)dōn$")
if pref then
make_irregular_non_past(args, inf, pref, "dō", "dēst", "dēþ", "dōþ", "dōn",
"dō", "dō", "dōþ", "dōn", with_ge)
make_weak_past(args, pref, "dyd")
return args
end
local pref = rmatch(inf, "^(.-)gān$")
if pref then
make_irregular_non_past(args, inf, pref, "gā", "gǣst", "gǣþ", "gāþ", "gān",
"gā", "gā", "gāþ", "gān", with_ge)
make_weak_past(args, pref, "ēod")
return args
end
local pref = rmatch(inf, "^(.-)illan$")
if pref then
make_irregular_non_past(args, inf, pref, "ille", "ilt", "ile", "illaþ", "illen",
"ille", {}, {}, {}, with_ge)
make_weak_past(args, pref, "old")
return args
end
local pref, vowel = rmatch(inf, "^(.-)n()llan$")
if pref then
make_irregular_non_past(args, inf, pref, "n" .. vowel .. "lle", "n" .. vowel .. "lt",
"n" .. vowel .. "le", "n" .. vowel .. "llaþ",
"n" .. vowel .. "llen", "n" .. vowel .. "lle",
{}, {}, {}, with_ge)
make_weak_past(args, pref, "nold")
return args
end
error("Unrecognized irregular verb: " .. inf)
end
local function set_categories(typ, class)
local cats = {}
local classtext = class and "class " .. class .. " " or ""
if typ == "strong" then
table.insert(cats, "Old English " .. classtext .. "strong verbs")
elseif typ == "weak" then
table.insert(cats, "Old English " .. classtext .. "weak verbs")
elseif typ == "pretpres" then
table.insert(cats, "Old English preterite-present verbs")
elseif typ == "irreg" or typ == "anomalous" then
table.insert(cats, "Old English irregular verbs")
elseif typ then
error("Unrecognized verb type: " .. typ)
end
return cats
end
function export.show(frame)
local parent_args = frame:getParent().args
local params = {
= {required = true, list = true, default = "beran<s4>"},
}
for slot, _ in pairs(slots_and_accel) do
params = {}
end
local args = require("Module:parameters").process(parent_args, params)
local allforms
local allcats = {}
if #args > 1 then
table.insert(allcats, "Old English verbs with multiple conjugations")
end
for _, infspec in ipairs(args) do
local inf, spec = rmatch(infspec, "^(.-)<(.*)>$")
if not inf then
error("Verb spec should look like e.g. 'beran<s4>' or 'dēman<w1>': " .. infspec)
end
local specs = rsplit(spec, "/")
local class = specs
local verner = rfind(class, "v")
class = gsub(class, "v", "")
local presa = gsub(inf, "n$", "")
data = {
inf = inf,
presa = presa,
prese = presa:find("ēa$") and presa or gsub(presa, "e?a$", "e"),
verner = verner,
with_ge = not begins_with_verbal_prefix(inf),
extraforms = {},
}
local typ
if class:find("^s") then
typ = "strong"
class = gsub(class, "^s", "")
if strong_verbs then
strong_verbs(data)
else
error("Unrecognized strong class: " .. class)
end
elseif class:find("^w") then
typ = "weak"
class = gsub(class, "^w", "")
if weak_verbs then
weak_verbs(data)
data.presenfin = data.presenfin or data.prese
data.presefin = data.presefin or data.prese
else
error("Unrecognized weak class: " .. class)
end
elseif class == "pp" then
typ = "pretpres"
elseif class == "i" then
typ = "irreg"
else
error("Unrecognized verb class: " .. class)
end
local overrides = {}
for i, spec in ipairs(specs) do
if i > 1 then
local parts = rsplit(spec, ":")
if #parts ~= 2 then
error("Verb modified spec must be of the form 'KEY:VALUE': " .. spec)
end
local k = parts
local v = parts
local splitv = rsplit(v, ", *")
local unrecognized = false
if slots_and_accel then
overrides = splitv
elseif k == "ge" then
data.with_ge = require("Module:yesno")(v)
elseif k == "impers" then
data.impers = require("Module:yesno")(v)
elseif typ == "weak" or typ == "strong" then
if k == "pres" then
data.presa = splitv
data.prese = splitv
data.presefin = splitv
data.presenfin = splitv
data.pres23 = splitv
data.impsg = splitv
elseif k == "pres1456" then
data.presa = splitv
data.prese = splitv
data.presefin = splitv
data.presenfin = splitv
elseif k == "pres23" then
data.pres23 = splitv
elseif k == "presa" then
data.presa = splitv
elseif k == "prese" then
data.prese = splitv
data.presefin = splitv
data.presenfin = splitv
elseif typ == "weak" and k == "presefin" then
data.presefin = splitv
elseif typ == "weak" and k == "presenfin" then
data.presenfin = splitv
elseif k == "past" then
data.past = splitv
data.pastsg = splitv
data.pastpl = splitv
elseif typ == "strong" and k == "pastsg" then
data.pastsg = splitv
elseif typ == "strong" and k == "pastpl" then
data.pastpl = splitv
elseif k == "impsg" then
data.impsg = splitv
elseif k == "pp" then
data.pp = splitv
elseif typ == "weak" and k == "papp" then
data.past = splitv
data.pp = splitv
else
unrecognized = true
end
else
unrecognized = true
end
if unrecognized then
error("Unrecognized spec key '" .. k .. "' (value '" .. v .. "')")
end
end
end
if typ == "weak" or typ == "strong" then
local missing_fields = {}
local fields_to_check =
typ == "weak" and {"presa", "presefin", "presenfin", "pres23", "impsg", "past", "pp"} or
{"presa", "prese", "pres23", "impsg", "pastsg", "pastpl", "pp"}
for _, field in ipairs(fields_to_check) do
if not data then
table.insert(missing_fields, field)
end
end
if #missing_fields > 0 then
error("Required spec(s) " .. table.concat(missing_fields, ",") ..
" missing, i.e. the form of the infinitive '" .. inf ..
"' was not recognized as a " .. typ .. " class-" .. class .. " verb and the " ..
"overriding specs weren't (all) supplied")
end
end
local forms
if typ == "strong" then
forms = make_strong(data.presa, data.prese, data.pres23, data.impsg, data.pastsg,
data.pastpl, data.pp, data.with_ge)
elseif typ == "weak" then
forms = make_weak(data.presa, data.presefin, data.presenfin,
data.pres23, data.impsg, data.past, data.pp, data.with_ge)
elseif typ == "pretpres" then
forms = make_preterite_present(inf, data.with_ge)
elseif typ == "irreg" then
forms = make_irregular(inf, data.with_ge)
else
error("Internal error: Unrecognized verb type: " .. typ)
end
for k, v in pairs(data.extraforms) do
add_form_to_slot(forms, k, v)
end
for k, v in pairs(overrides) do
forms = v
end
if data.impers then
-- e.g. mǣtan; clear personal non-3sg forms
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
forms = {}
end
class = rsub(class, "", "")
if class == "" then
class = nil
end
if not allforms then
allforms = forms
allforms = typ
allforms = class
else
for k, v in pairs(forms) do
for _, form in ipairs(v) do
m_table.insertIfNot(allforms, form)
end
end
end
local cats = set_categories(typ, class)
for _, cat in ipairs(cats) do
m_table.insertIfNot(allcats, cat)
end
end
local table = make_table(allforms)
return table .. m_utilities.format_categories(allcats, lang)
end
return export