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Module:inflection utilities (view source)

Revision as of 14:41, 3 May 2023

24,737 bytes added ,  3 May 2023
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(Created page with "local export = {} local m_links = require("Module:links") local m_string_utilities = require("Module:string utilities") local m_table = require("Module:table") local rsplit...")
 
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local m_string_utilities = require("Module:string utilities")
local m_string_utilities = require("Module:string utilities")
local m_table = require("Module:table")
local m_table = require("Module:table")
local put = require("Module:parse utilities")


local rsplit = mw.text.split
local rsplit = mw.text.split
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end
end


local function track(page)
return true
end


local footnote_abbrevs = {
local footnote_abbrevs = {
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function export.remove_redundant_links(text)
------------------------------------------------------------------------------------------------------------
-- remove redundant link surrounding entire form
--                                             PARSING CODE                                              --
return rsub(text, "^%[%[([^%[%]|]*)%]%]$", "%1")
------------------------------------------------------------------------------------------------------------
end
 
--[=[
In order to understand the following parsing code, you need to understand how inflected
text specs work. They are intended to work with inflected text where individual words to
be inflected may be followed by inflection specs in angle brackets. The format of the
text inside of the angle brackets is up to the individual language and part-of-speech
specific implementation. A real-world example is as follows:
"[[медичний|меди́чна]]<+> [[сестра́]]<*,*#.pr>". This is the inflection of a multiword
expression "меди́чна сестра́", which means "nurse" (literally "medical sister"), consisting
of two words: the adjective меди́чна ("medical" in the feminine singular) and the noun
сестра́ ("sister"). The specs in angle brackets follow each word to be inflected; for
example, <+> means that the preceding word should be declined as an adjective.
 
The code below works in terms of balanced expressions, which are bounded by delimiters
such as < > or [ ]. The intention is to allow separators such as spaces to be embedded
inside of delimiters; such embedded separators will not be parsed as separators.
For example, Ukrainian noun specs allow footnotes in brackets to be inserted inside of
angle brackets; something like "меди́чна<+> сестра́<pr.[this is a footnote]>" is legal,
as is "[[медичний|меди́чна]]<+> [[сестра́]]<pr.[this is an <i>italicized footnote</i>]>",
and the parsing code should not be confused by the embedded brackets, spaces or angle
brackets.
 
The parsing is done by two functions, which work in close concert:
parse_balanced_segment_run() and split_alternating_runs(). To illustrate, consider
the following:
 
parse_balanced_segment_run("foo<M.proper noun> bar<F>", "<", ">") =
  {"foo", "<M.proper noun>", " bar", "<F>", ""}
 
then
 
split_alternating_runs({"foo", "<M.proper noun>", " bar", "<F>", ""}, " ") =
  {{"foo", "<M.proper noun>", ""}, {"bar", "<F>", ""}}


Here, we start out with a typical inflected text spec "foo<M.proper noun> bar<F>",
-- FIXME: Callers of this code should call [[Module:parse-utilities]] directly.
call parse_balanced_segment_run() on it, and call split_alternating_runs() on the
result. The output of parse_balanced_segment_run() is a list where even-numbered
segments are bounded by the bracket-like characters passed into the function,
and odd-numbered segments consist of the surrounding text. split_alternating_runs()
is called on this, and splits *only* the odd-numbered segments, grouping all
segments between the specified character. Note that the inner lists output by
split_alternating_runs() are themselves in the same format as the output of
parse_balanced_segment_run(), with bracket-bounded text in the even-numbered segments.
Hence, such lists can be passed again to split_alternating_runs().
]=]


export.parse_balanced_segment_run = put.parse_balanced_segment_run
export.parse_multi_delimiter_balanced_segment_run = put.parse_multi_delimiter_balanced_segment_run
export.split_alternating_runs = put.split_alternating_runs


-- Parse a string containing matched instances of parens, brackets or the like.
-- FIXME: Older entry point. Call split_alternating_runs_and_frob_raw_text() directly.
-- Return a list of strings, alternating between textual runs not containing the
-- Like split_alternating_runs() but strips spaces from both ends of the odd-numbered elements (only in
-- open/close characters and runs beginning and ending with the open/close
-- odd-numbered runs if preserve_splitchar is given). Effectively we leave alone the footnotes and splitchars
-- characters. For example,
-- themselves, but otherwise strip extraneous spaces. Spaces in the middle of an element are also left alone.
--
function export.split_alternating_runs_and_strip_spaces(segment_runs, splitchar, preserve_splitchar)
-- parse_balanced_segment_run("foo(x(1)), bar(2)", "(", ")") = {"foo", "(x(1))", ", bar", "(2)", ""}.
track("split-alternating-runs-and-strip-spaces")
function export.parse_balanced_segment_run(segment_run, open, close)
return put.split_alternating_runs_and_frob_raw_text(segment_runs, splitchar, put.strip_spaces, preserve_splitchar)
local break_on_open_close = m_string_utilities.capturing_split(segment_run, "([%" .. open .. "%" .. close .. "])")
local text_and_specs = {}
local level = 0
local seg_group = {}
for i, seg in ipairs(break_on_open_close) do
if i % 2 == 0 then
if seg == open then
table.insert(seg_group, seg)
level = level + 1
else
assert(seg == close)
table.insert(seg_group, seg)
level = level - 1
if level < 0 then
error("Unmatched " .. close .. " sign: '" .. segment_run .. "'")
elseif level == 0 then
table.insert(text_and_specs, table.concat(seg_group))
seg_group = {}
end
end
elseif level > 0 then
table.insert(seg_group, seg)
else
table.insert(text_and_specs, seg)
end
end
if level > 0 then
error("Unmatched " .. open .. " sign: '" .. segment_run .. "'")
end
return text_and_specs
end
end




-- Like parse_balanced_segment_run() but accepts multiple sets of delimiters. For example,
------------------------------------------------------------------------------------------------------------
--
--                                            INFLECTION CODE                                            --
-- parse_multi_delimiter_balanced_segment_run("foo[bar(baz[bat])], quux<glorp>", {{"[", "]"}, {"(", ")"}, {"<", ">"}}) =
------------------------------------------------------------------------------------------------------------
-- {"foo", "[bar(baz[bat])]", ", quux", "<glorp>", ""}.
function export.parse_multi_delimiter_balanced_segment_run(segment_run, delimiter_pairs)
local open_to_close_map = {}
local open_close_items = {}
for _, open_close in ipairs(delimiter_pairs) do
local open, close = unpack(open_close)
open_to_close_map[open] = close
table.insert(open_close_items, "%" .. open)
table.insert(open_close_items, "%" .. close)
end
local open_close_pattern = "([" .. table.concat(open_close_items) .. "])"
local break_on_open_close = m_string_utilities.capturing_split(segment_run, open_close_pattern)
local text_and_specs = {}
local level = 0
local seg_group = {}
local open_at_level_zero
for i, seg in ipairs(break_on_open_close) do
if i % 2 == 0 then
table.insert(seg_group, seg)
if level == 0 then
if not open_to_close_map[seg] then
error("Unmatched " .. seg .. " sign: '" .. segment_run .. "'")
end
assert(open_at_level_zero == nil)
open_at_level_zero = seg
level = level + 1
elseif seg == open_at_level_zero then
level = level + 1
elseif seg == open_to_close_map[open_at_level_zero] then
level = level - 1
assert(level >= 0)
if level == 0 then
table.insert(text_and_specs, table.concat(seg_group))
seg_group = {}
open_at_level_zero = nil
end
end
elseif level > 0 then
table.insert(seg_group, seg)
else
table.insert(text_and_specs, seg)
end
end
if level > 0 then
error("Unmatched " .. open_at_level_zero .. " sign: '" .. segment_run .. "'")
end
return text_and_specs
end
 


--[=[
--[=[
Split a list of alternating textual runs of the format returned by
The following code is used in building up the inflection of terms in inflected languages, where a term can potentially
`parse_balanced_segment_run` on `splitchar`. This only splits the odd-numbered
consist of several inflected words, each surrounded by fixed text, and a given slot (e.g. accusative singular) of a
textual runs (the portions between the balanced open/close characters).
given word can potentially consist of multiple possible inflected forms. In addition, each form may be associated with
The return value is a list of lists, where each list contains an odd number of
a manual transliteration and/or a list of footnotes (or qualifiers, in the case of headword lines). The following
elements, where the even-numbered elements of the sublists are the original
terminology is helpful to understand:
balanced textual run portions. For example, if we do
 
parse_balanced_segment_run("foo<M.proper noun> bar<F>", "<", ">") =
  {"foo", "<M.proper noun>", " bar", "<F>", ""}
 
then
 
split_alternating_runs({"foo", "<M.proper noun>", " bar", "<F>", ""}, " ") =
  {{"foo", "<M.proper noun>", ""}, {"bar", "<F>", ""}}
 
Note that we did not touch the text "<M.proper noun>" even though it contains a space
in it, because it is an even-numbered element of the input list. This is intentional and
allows for embedded separators inside of brackets/parens/etc. Note also that the inner
lists in the return value are of the same form as the input list (i.e. they consist of
alternating textual runs where the even-numbered segments are balanced runs), and can in
turn be passed to split_alternating_runs().


If `preserve_splitchar` is passed in, the split character is included in the output,
* An `inflection dimension` is a particular dimension over which a term may be inflected, such as case, number, gender,
as follows:
   person, tense, mood, voice, aspect, etc.
 
* A `term` is a word or multiword expression that can be inflected. A multiword term may in turn consist of several
split_alternating_runs({"foo", "<M.proper noun>", " bar", "<F>", ""}, " ", true) =
  single-word inflected terms with surrounding fixed text. A term belongs to a particular `part of speech` (e.g. noun,
   {{"foo", "<M.proper noun>", ""}, {" "}, {"bar", "<F>", ""}}
  verb, adjective, etc.).
 
* A `slot` is a particular combination of inflection dimensions. An example might be "accusative plural" for a noun,
Consider what happens if the original string has multiple spaces between brackets,
  or "first-person singular present indicative" for a verb. Slots are named in a language-specific fashion. For
and multiple sets of brackets without spaces between them.
  example, the slot "accusative plural" might have a name "accpl", while "first-person singular present indicative"
 
   might be variously named "pres1s", "pres_ind_1_sg", etc. Each slot is filled with zero or more `forms`.
parse_balanced_segment_run("foo[dated][low colloquial] baz-bat quux xyzzy[archaic]", "[", "]") =
* A `form` is a particular inflection of a slot for a particular term. Forms are described using `form objects`, which
  {"foo", "[dated]", "", "[low colloquial]", " baz-bat quux xyzzy", "[archaic]", ""}
  are Lua objects taking the form {form="FORM", translit="MANUAL_TRANSLIT", footnotes={"FOOTNOTE", "FOOTNOTE", ...}}.
 
  FORM is a `form string` specifying the value of the form itself. MANUAL_TRANSLIT specifies optional manual
then
  transliteration for the form, in case (a) the form string is in a different script; and (b) either the form's
 
  automatic transliteration is incorrect and needs to be overridden, or the language of the term has no automatic
split_alternating_runs({"foo", "[dated]", "", "[low colloquial]", " baz-bat quux xyzzy", "[archaic]", ""}, "[ %-]") =
  transliteration (e.g. in the case of Persian and Hebrew). FOOTNOTE is a footnote to be attached to the form in
   {{"foo", "[dated]", "", "[low colloquial]", ""}, {"baz"}, {"bat"}, {"quux"}, {"xyzzy", "[archaic]", ""}}
  question, and should be e.g. "[archaic]" or "[only in the meaning 'to succeed (an officeholder)']", i.e. the string
 
  must be surrounded by brackets and should begin with a lowercase letter and not end in a period/full stop. When such
If `preserve_splitchar` is passed in, the split character is included in the output,
   footnotes are converted to actual footnotes in a table of inflected forms, the brackets will be removed, the first
as follows:
  letter will be capitalized and a period/full stop will be added to the end. (However, when such footnotes are used
 
  as qualifiers in headword lines, only the brackets will be removed, with no capitalization or final period.) Note
split_alternating_runs({"foo", "[dated]", "", "[low colloquial]", " baz bat quux xyzzy", "[archaic]", ""}, "[ %-]", true) =
  that only FORM is mandatory.
   {{"foo", "[dated]", "", "[low colloquial]", ""}, {" "}, {"baz"}, {"-"}, {"bat"}, {" "}, {"quux"}, {" "}, {"xyzzy", "[archaic]", ""}}
* The `lemma` is the particular form of a term under which the term is entered into a dictionary. For example, for
 
  verbs, it is most commonly the infinitive, but this differs for some languages: e.g. Latin, Greek and Bulgarian use
As can be seen, the even-numbered elements in the outer list are one-element lists consisting of the separator text.
  the first-person singular present indicative (active voice in the case of Latin and Greek); Sanskrit and Macedonian
  use the third-person singular present indicative (active voice in the case of Sanskrit); Hebrew and Arabic use the
  third-person singular masculine past (aka "perfect"); etc. For nouns, the lemma form is most commonly the nominative
  singular, but e.g. for Old French it is the objective singular and for Sanskrit it is the root.
]=]
]=]
function export.split_alternating_runs(segment_runs, splitchar, preserve_splitchar)
local grouped_runs = {}
local run = {}
for i, seg in ipairs(segment_runs) do
if i % 2 == 0 then
table.insert(run, seg)
else
local parts =
preserve_splitchar and m_string_utilities.capturing_split(seg, "(" .. splitchar .. ")") or
rsplit(seg, splitchar)
table.insert(run, parts[1])
for j=2,#parts do
table.insert(grouped_runs, run)
run = {parts[j]}
end
end
end
if #run > 0 then
table.insert(grouped_runs, run)
end
return grouped_runs
end




-- Given a list of forms (each of which is a table of the form
local function extract_footnote_modifiers(footnote)
-- {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}), concatenate into a
local footnote_mods, footnote_without_mods = rmatch(footnote, "^%[([!*+]?)(.*)%]$")
-- SLOT=FORM//TRANSLIT,FORM//TRANSLIT,... string (or SLOT=FORM,FORM,... if no translit),
if not footnote_mods then
-- replacing embedded | signs with <!>.
error("Saw footnote '" .. footnote .. "' not surrounded by brackets")
function export.concat_forms_in_slot(forms)
if forms then
local new_vals = {}
for _, v in ipairs(forms) do
local form = v.form
if v.translit then
form = form .. "//" .. v.translit
end
table.insert(new_vals, rsub(form, "|", "<!>"))
end
return table.concat(new_vals, ",")
else
return nil
end
end
return footnote_mods, footnote_without_mods
end
end




-- Insert a form (an object of the form {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES})
-- Insert a form (an object of the form {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}) into a list of such
-- into a list of such forms. If the form is already present, the footnotes of the existing and
-- forms. If the form is already present, the footnotes of the existing and new form might be combined (specifically,
-- new form might be combined (specifically, footnotes in the new form beginning with ! will be
-- footnotes in the new form beginning with ! will be combined).
-- combined).
function export.insert_form_into_list(list, form)
function export.insert_form_into_list(list, form)
-- Don't do anything if the form object or the form inside it is nil. This simplifies
-- Don't do anything if the form object or the form inside it is nil. This simplifies
Line 282: Line 118:
-- Form already present; maybe combine footnotes.
-- Form already present; maybe combine footnotes.
if form.footnotes then
if form.footnotes then
-- Check to see if there are existing footnotes with *; if so, remove them.
if listform.footnotes then
local any_footnotes_with_asterisk = false
for _, footnote in ipairs(listform.footnotes) do
local footnote_mods, _ = extract_footnote_modifiers(footnote)
if rfind(footnote_mods, "%*") then
any_footnotes_with_asterisk = true
break
end
end
if any_footnotes_with_asterisk then
local filtered_footnotes = {}
for _, footnote in ipairs(listform.footnotes) do
local footnote_mods, _ = extract_footnote_modifiers(footnote)
if not rfind(footnote_mods, "%*") then
table.insert(filtered_footnotes, footnote)
end
end
if #filtered_footnotes > 0 then
listform.footnotes = filtered_footnotes
else
listform.footnotes = nil
end
end
end
-- The behavior here has changed; track cases where the old behavior might
-- The behavior here has changed; track cases where the old behavior might
-- be needed by adding ! to the footnote.
-- be needed by adding ! to the footnote.
track("combining-footnotes")
local any_footnotes_with_bang = false
local any_footnotes_with_bang = false
for _, footnote in ipairs(form.footnotes) do
for _, footnote in ipairs(form.footnotes) do
if rfind(footnote, "^%[!") then
local footnote_mods, _ = extract_footnote_modifiers(footnote)
if rfind(footnote_mods, "[!+]") then
any_footnotes_with_bang = true
any_footnotes_with_bang = true
break
break
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for _, footnote in ipairs(form.footnotes) do
for _, footnote in ipairs(form.footnotes) do
local already_seen = false
local already_seen = false
if rfind(footnote, "^%[!") then
local footnote_mods, footnote_without_mods = extract_footnote_modifiers(footnote)
if rfind(footnote_nods, "[!+]") then
for _, existing_footnote in ipairs(listform.footnotes) do
for _, existing_footnote in ipairs(listform.footnotes) do
if rsub(existing_footnote, "^%[!", "") == rsub(footnote, "^%[!", "") then
local existing_footnote_mods, existing_footnote_without_mods =
extract_footnote_modifiers(existing_footnote)
if existing_footnote_without_mods == footnote_without_mods then
already_seen = true
already_seen = true
break
break
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-- Map a function over the form values in FORMS (a list of objects of the form
function export.identity(form, translit)
-- {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}). The function is called with
return form, translit
-- two arguments, the original form and manual translit; if manual translit isn't relevant,
end
-- it's fine to declare the function with only one argument. The return value is either a
 
-- single value (the new form) or two values (the new form and new manual translit).
 
-- Use insert_form_into_list() to insert them into the returned list in case two different
local function call_map_function_str(str, fun)
-- forms map to the same thing.
if str == "?" then
return "?"
end
local newform, newtranslit = fun(str)
if newtranslit then
return {form=newform, translit=newtranslit}
else
return newform
end
end
 
 
local function call_map_function_obj(form, fun)
if form.form == "?" then
return {form = "?", footnotes = form.footnotes}
end
local newform, newtranslit = fun(form.form, form.translit)
return {form=newform, translit=newtranslit, footnotes=form.footnotes}
end
 
 
-- Map a function over the form values in FORMS (a list of form objects of the form {form=FORM,
-- translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}). If the input form is "?", it is preserved on output and the
-- function is not called. The function is called with two arguments, the original form and manual translit; if manual
-- translit isn't relevant, it's fine to declare the function with only one argument. The return value is either a
-- single value (the new form) or two values (the new form and new manual translit). The footnotes (if any) from the
-- input form objects are preserved on output. Uses insert_form_into_list() to insert the resulting form objects into
-- the returned list in case two different forms map to the same thing.
function export.map_forms(forms, fun)
function export.map_forms(forms, fun)
if not forms then
if not forms then
Line 362: Line 256:
local retval = {}
local retval = {}
for _, form in ipairs(forms) do
for _, form in ipairs(forms) do
local newform, newtranslit = fun(form.form, form.translit)
export.insert_form_into_list(retval, call_map_function_obj(form, fun))
newform = {form=newform, translit=newtranslit, footnotes=form.footnotes}
export.insert_form_into_list(retval, newform)
end
end
return retval
return retval
Line 370: Line 262:




-- Map a list-returning function over the form values in FORMS (a list of objects of the form
-- Map a list-returning function over the form values in FORMS (a list of form objects of the form {form=FORM,
-- {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}). The function is called witih
-- translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}). If the input form is "?", it is preserved on output and the
-- two arguments, the original form and manual translit; if manual translit isn't relevant,
-- function is not called. The function is called with two arguments, the original form and manual translit; if manual
-- it's fine to declare the function with only one argument. The return value is either a
-- translit isn't relevant, it's fine to declare the function with only one argument. The return value is either a list
-- list of forms or a list of objects of the form {form=FORM, translit=MANUAL_TRANSLIT}.
-- of forms or a list of form objects of the form {form=FORM, translit=MANUAL_TRANSLIT}. The footnotes (if any) from
-- Use insert_form_into_list() to insert them into the returned list in case two different
-- the input form objects are preserved on output. Uses insert_form_into_list() to insert the resulting form objects
-- forms map to the same thing.
-- into the returned list in case two different forms map to the same thing.
function export.flatmap_forms(forms, fun)
function export.flatmap_forms(forms, fun)
if not forms then
if not forms then
Line 383: Line 275:
local retval = {}
local retval = {}
for _, form in ipairs(forms) do
for _, form in ipairs(forms) do
local funret = fun(form.form, form.translit)
local funret = form.form == "?" and {"?"} or fun(form.form, form.translit)
for _, fr in ipairs(funret) do
for _, fr in ipairs(funret) do
local newform
local newform
Line 398: Line 290:




-- Map a function over the form values in FORMS (a single string, a single object of the form
-- Map a function over the form values in FORMS (a single string, a form object of the form {form=FORM,
-- {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}, or a list of either of the
-- translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}, or a list of either of the previous two types). If the input form is
-- previous two types). If FIRST_ONLY is given and FORMS is a list, only map over the first
-- "?", it is preserved on output and the function is not called. If FIRST_ONLY is given and FORMS is a list, only map
-- element. Return value is of the same form as FORMS. The function is called with two
-- over the first element. Return value is of the same form as FORMS, unless FORMS is a string and the function return
-- arguments, the original form and manual translit; if manual translit isn't relevant,
-- both form and manual translit (in which case the return value is a form object). The function is called with two
-- it's fine to declare the function with only one argument. The return value is either a
-- arguments, the original form and manual translit; if manual translit isn't relevant, it's fine to declare the
-- single value (the new form) or two values (the new form and new manual translit).
-- function with only one argument. The return value is either a single value (the new form) or two values (the new
function export.map_form_or_forms(forms, fn, first_only)
-- form and new manual translit). The footnotes (if any) from the input form objects are preserved on output.
if forms == nil then
--
-- FIXME: This function is used only in [[Module:bg-verb]] and should be moved into that module.
function export.map_form_or_forms(forms, fun, first_only)
if not forms then
return nil
return nil
elseif type(forms) == "string" then
elseif type(forms) == "string" then
return forms == "?" and "?" or fn(forms)
return call_map_function_str(forms, fun)
elseif forms.form then
elseif forms.form then
if forms.form == "?" then
return call_map_function_obj(forms, fun)
return {form = "?", footnotes = forms.footnotes}
end
local newform, newtranslit = fn(forms.form, forms.translit)
return {form=newform, translit=newtranslit, footnotes=forms.footnotes}
else
else
local retval = {}
local retval = {}
for i, form in ipairs(forms) do
for i, form in ipairs(forms) do
if first_only then
if first_only then
return export.map_form_or_forms(form, fn)
return export.map_form_or_forms(form, fun)
end
end
table.insert(retval, export.map_form_or_forms(form, fn))
table.insert(retval, export.map_form_or_forms(form, fun))
end
end
return retval
return retval
Line 429: Line 320:




-- Combine two sets of footnotes. If either is nil, just return the other, and if both are nil,
-- Combine two sets of footnotes. If either is nil, just return the other, and if both are nil, return nil.
-- return nil.
function export.combine_footnotes(notes1, notes2)
function export.combine_footnotes(notes1, notes2)
if not notes1 and not notes2 then
if not notes1 and not notes2 then
Line 449: Line 339:




-- Expand a given footnote (as specified by the user, including the surrounding brackets)
-- Expand a given footnote (as specified by the user, including the surrounding brackets) into the form to be inserted
-- into the form to be inserted into the final generated table.
-- into the final generated table. If `no_parse_refs` is not given and the footnote is a reference (of the form
function export.expand_footnote(note)
-- '[ref:...]'), parse and return the specified reference(s). Two values are returned, `footnote_string` (the expanded
local notetext = rmatch(note, "^%[!?(.*)%]$")
-- footnote, or nil if the second value is present) and `references` (a list of objects of the form
if not notetext then
-- {text = TEXT, name = NAME, group = GROUP} if the footnote is a reference and `no_parse_refs` is not given, otherwise
error("Internal error: Footnote should be surrounded by brackets: " .. note)
-- nil). Unless `return_raw` is given, the returned footnote string is capitalized and has a final period added.
function export.expand_footnote_or_references(note, return_raw, no_parse_refs)
local _, notetext = extract_footnote_modifiers(note)
if not no_parse_refs and notetext:find("^ref:") then
-- a reference
notetext = rsub(notetext, "^ref:", "")
local parsed_refs = require("Module:references").parse_references(notetext)
for i, ref in ipairs(parsed_refs) do
if type(ref) == "string" then
parsed_refs[i] = {text = ref}
end
end
return nil, parsed_refs
end
end
if footnote_abbrevs[notetext] then
if footnote_abbrevs[notetext] then
Line 474: Line 376:
notetext = table.concat(split_notes)
notetext = table.concat(split_notes)
end
end
return m_string_utilities.ucfirst(notetext) .. "."
return return_raw and notetext or m_string_utilities.ucfirst(notetext) .. "."
end
end




-- Combine a form (either a string or a table {form = FORM, footnotes = FOOTNOTES, ...}) with footnotes.
-- Older entry point. Equivalent to expand_footnote_or_references(note, true).
-- Do the minimal amount of work; e.g. if FOOTNOTES is nil, just return FORM.
-- FIXME: Convert all uses to use expand_footnote_or_references() instead.
function export.combine_form_and_footnotes(form, footnotes)
function export.expand_footnote(note)
if type(footnotes) == "string" then
track("expand-footnote")
footnotes = {footnotes}
return export.expand_footnote_or_references(note, false, "no parse refs")
end
 
 
function export.fetch_headword_qualifiers_and_references(footnotes)
if not footnotes then
return nil
end
end
if footnotes then
local quals, refs
if type(form) == "table" then
for _, qualifier in ipairs(footnotes) do
form = m_table.shallowcopy(form)
local this_footnote, this_refs = export.expand_footnote_or_references(qualifier, "return raw")
form.footnotes = export.combine_footnotes(form.footnotes, footnotes)
if this_refs then
return form
if not refs then
refs = this_refs
else
for _, ref in ipairs(this_refs) do
table.insert(refs, ref)
end
end
else
else
return {form = form, footnotes = footnotes}
if not quals then
quals = {this_footnote}
else
table.insert(quals, this_footnote)
end
end
end
else
return form
end
end
return quals, refs
end
end




-- Older entry point. FIXME: Obsolete me.
-- Combine a form (either a string or a table) with additional footnotes, possibly replacing the form string and/or
function export.generate_form(form, footnotes)
-- translit in the process. Normally called in one of two ways:
return export.combine_form_and_footnotes(form, footnotes)
-- (1) combine_form_and_footnotes(FORM_OBJ, ADDL_FOOTNOTES, NEW_FORM, NEW_TRANSLIT) where FORM_OBJ is an existing
--    form object (a table of the form {form = FORM, translit = TRANSLIT, footnotes = FOOTNOTES, ...}); ADDL_FOOTNOTES
--    is either nil, a single string (a footnote) or a list of footnotes; NEW_FORM is either nil or the new form
--    string to substitute; and NEW_TRANSLIT is either nil or the new translit string to substitute.
-- (2) combine_form_and_footnotes(FORM_STRING, FOOTNOTES), where FORM_STRING is a string and FOOTNOTES is either nil,
--    a single string (a footnote) or a list of footnotes.
--
-- In either case, a form object (a table of the form {form = FORM, translit = TRANSLIT, footnotes = FOOTNOTES, ...})
-- is returned, preserving as many properties as possible from any existing form object in FORM_OR_FORM_OBJ. Do the
-- minimal amount of work; e.g. if FORM_OR_FORM_OBJ is a form object and ADDL_FOOTNOTES, NEW_FORM and NEW_TRANSLIT are
-- all nil, the same object as passed in is returned. Under no circumstances is the existing form object side-effected.
function export.combine_form_and_footnotes(form_or_form_obj, addl_footnotes, new_form, new_translit)
if type(addl_footnotes) == "string" then
addl_footnotes = {addl_footnotes}
end
if not addl_footnotes and not new_form and not new_translit then
return form_or_form_obj
end
if type(form_or_form_obj) == "string" then
new_form = new_form or form_or_form_obj
return {form = new_form, translit = new_translit, footnotes = addl_footnotes}
end
form_or_form_obj = m_table.shallowcopy(form_or_form_obj)
if new_form then
form_or_form_obj.form = new_form
end
if new_translit then
form_or_form_obj.translit = new_translit
end
if addl_footnotes then
form_or_form_obj.footnotes = export.combine_footnotes(form_or_form_obj.footnotes, addl_footnotes)
end
return form_or_form_obj
end
end


Line 506: Line 455:
-- Combine a single form (either a string or object {form = FORM, footnotes = FOOTNOTES, ...}) or a list of same
-- Combine a single form (either a string or object {form = FORM, footnotes = FOOTNOTES, ...}) or a list of same
-- along with footnotes and return a list of forms where each returned form is an object
-- along with footnotes and return a list of forms where each returned form is an object
-- {form = FORM, footnotes = FOOTNOTES, ...}.
-- {form = FORM, footnotes = FOOTNOTES, ...}. If WORD_OR_WORDS is already in general list form and FOOTNOTES is nil,
-- return WORD_OR_WORDS directly rather than copying it.
function export.convert_to_general_list_form(word_or_words, footnotes)
function export.convert_to_general_list_form(word_or_words, footnotes)
if type(footnotes) == "string" then
footnotes = {footnotes}
end
if type(word_or_words) == "string" then
if type(word_or_words) == "string" then
return {{form = word_or_words, footnotes = footnotes}}
return {{form = word_or_words, footnotes = footnotes}}
elseif word_or_words.form then
elseif word_or_words.form then
return {export.combine_form_and_footnotes(word_or_words, footnotes)}
return {export.combine_form_and_footnotes(word_or_words, footnotes)}
else
elseif not footnotes then
local retval = {}
-- Check if already in general list form and return directly if so.
local must_convert = false
for _, form in ipairs(word_or_words) do
for _, form in ipairs(word_or_words) do
if type(form) == "string" then
if type(form) == "string" then
table.insert(retval, {form = form, footnotes = footnotes})
must_convert = true
else
break
table.insert(retval, export.combine_form_and_footnotes(form, footnotes))
end
end
end
end
return retval
if not must_convert then
return word_or_words
end
end
local retval = {}
for _, form in ipairs(word_or_words) do
if type(form) == "string" then
table.insert(retval, {form = form, footnotes = footnotes})
else
table.insert(retval, export.combine_form_and_footnotes(form, footnotes))
end
end
end
return retval
end
end


Line 536: Line 500:




function export.add_forms(forms, slot, stems, endings, combine_stem_ending,
-- Combine `stems` and `endings` and store into slot `slot` of form table `forms`. Either of `stems` and `endings` can
lang, combine_stem_ending_tr, footnotes)
-- be nil, a single string, a list of strings, a form object or a list of form objects. The combination of a given stem
-- and ending happens using `combine_stem_ending`, which takes two parameters (stem and ending, each a string) and
-- returns one value (a string). If manual transliteration is present in either `stems` or `endings`, `lang` (a
-- language object) along with `combine_stem_ending_tr` (a function like `combine_stem_ending` for combining manual
-- transliteration) must be given. `footnotes`, if specified, is a list of additional footnotes to attach to the
-- resulting inflections (stem+ending combinations). The resulting inflections are inserted into the form table using
-- export.insert_form(), in case of duplication.
function export.add_forms(forms, slot, stems, endings, combine_stem_ending, lang, combine_stem_ending_tr, footnotes)
if stems == nil or endings == nil then
if stems == nil or endings == nil then
return
return
end
local function combine(stem, ending)
if stem == "?" or ending == "?" then
return "?"
end
return combine_stem_ending(stem, ending)
end
end
if type(stems) == "string" and type(endings) == "string" then
if type(stems) == "string" and type(endings) == "string" then
export.insert_form(forms, slot, {form = combine_stem_ending(stems, endings), footnotes = footnotes})
export.insert_form(forms, slot, {form = combine(stems, endings), footnotes = footnotes})
elseif type(stems) == "string" and is_table_of_strings(endings) then
elseif type(stems) == "string" and is_table_of_strings(endings) then
for _, ending in ipairs(endings) do
for _, ending in ipairs(endings) do
export.insert_form(forms, slot, {form = combine_stem_ending(stems, ending), footnotes = footnotes})
export.insert_form(forms, slot, {form = combine(stems, ending), footnotes = footnotes})
end
end
else
else
Line 563: Line 540:
footnotes = ending.footnotes
footnotes = ending.footnotes
end
end
local new_form = combine_stem_ending(stem.form, ending.form)
local new_form = combine(stem.form, ending.form)
local new_translit
local new_translit
if stem.translit or ending.translit then
if new_form ~= "?" and (stem.translit or ending.translit) then
if not lang or not combine_stem_ending_tr then
if not lang or not combine_stem_ending_tr then
error("Internal error: With manual translit, 'lang' and 'combine_stem_ending_tr' must be passed to 'add_forms'")
error("Internal error: With manual translit, 'lang' and 'combine_stem_ending_tr' must be passed to 'add_forms'")
end
end
local stem_tr = stem.translit or lang:transliterate(m_links.remove_links(stem.form))
local stem_tr = stem.translit or (lang:transliterate(m_links.remove_links(stem.form)))
local ending_tr = ending.translit or lang:transliterate(m_links.remove_links(ending.form))
local ending_tr = ending.translit or (lang:transliterate(m_links.remove_links(ending.form)))
new_translit = combine_stem_ending_tr(stem_tr, ending_tr)
new_translit = combine_stem_ending_tr(stem_tr, ending_tr)
end
end
Line 585: Line 562:
return
return
elseif #sets_of_forms == 1 then
elseif #sets_of_forms == 1 then
local formset = iut.convert_to_general_list_form(sets_of_forms[1], footnotes)
local formset = export.convert_to_general_list_form(sets_of_forms[1], footnotes)
export.insert_forms(forms, slot, formset)
export.insert_forms(forms, slot, formset)
elseif #sets_of_forms == 2 then
elseif #sets_of_forms == 2 then
Line 620: Line 597:


local function parse_before_or_post_text(props, text, segments, lemma_is_last)
local function parse_before_or_post_text(props, text, segments, lemma_is_last)
-- If the text begins with a hyphen, include the hyphen in the set of allowed characters
-- for an inflected segment. This way, e.g. conjugating "-ir" is treated as a regular
-- -ir verb rather than a hyphen + irregular [[ir]].
local is_suffix = rfind(text, "^%-")
-- Call parse_balanced_segment_run() to keep multiword links together.
-- Call parse_balanced_segment_run() to keep multiword links together.
local bracketed_runs = export.parse_balanced_segment_run(text, "[", "]")
local bracketed_runs = put.parse_balanced_segment_run(text, "[", "]")
-- Split on space or hyphen. Use preserve_splitchar so we know whether the separator was
-- Split normally on space or hyphen (but customizable). Use preserve_splitchar so we know whether the separator was
-- a space or hyphen.
-- a space or hyphen.
local space_separated_groups = export.split_alternating_runs(bracketed_runs,
local space_separated_groups
is_suffix and " " or "[ %-]", "preserve splitchar")
if props.split_bracketed_runs_into_words then
space_separated_groups = props.split_bracketed_runs_into_words(bracketed_runs)
end
if not space_separated_groups then
-- If the text begins with a hyphen, include the hyphen in the set of allowed characters
-- for an inflected segment. This way, e.g. conjugating "-ir" is treated as a regular
-- -ir verb rather than a hyphen + irregular [[ir]].
local is_suffix = rfind(text, "^%-")
local split_pattern = is_suffix and " " or "[ %-]"
space_separated_groups = put.split_alternating_runs(bracketed_runs, split_pattern, "preserve splitchar")
end


local parsed_components = {}
local parsed_components = {}
Line 669: Line 652:
if not parsed_components_translit[j] then
if not parsed_components_translit[j] then
parsed_components_translit[j] =
parsed_components_translit[j] =
props.lang:transliterate(m_links.remove_links(parsed_component))
(props.lang:transliterate(m_links.remove_links(parsed_component)))
end
end
end
end
Line 748: Line 731:
word_specs = {}
word_specs = {}
}
}
if not disable_allow_default_indicator and props.allow_default_indicator and #segments == 1 then
if not disable_allow_default_indicator then
table.insert(segments, "<>")
if #segments == 1 then
table.insert(segments, "")
if props.allow_default_indicator then
table.insert(segments, "<>")
table.insert(segments, "")
elseif props.angle_brackets_omittable then
segments[1] = "<" .. segments[1] .. ">"
table.insert(segments, 1, "")
table.insert(segments, "")
end
end
end
end
-- Loop over every other segment. The even-numbered segments are angle-bracket specs while
-- Loop over every other segment. The even-numbered segments are angle-bracket specs while
Line 783: Line 774:
local parsed_alternants = {}
local parsed_alternants = {}
local alternant_text = rmatch(alternant, "^%(%((.*)%)%)$")
local alternant_text = rmatch(alternant, "^%(%((.*)%)%)$")
local segments = export.parse_balanced_segment_run(alternant_text, "<", ">")
local segments = put.parse_balanced_segment_run(alternant_text, "<", ">")
local comma_separated_groups = export.split_alternating_runs(segments, "%s*,%s*")
local comma_separated_groups = put.split_alternating_runs(segments, "%s*,%s*")
local alternant_spec = {alternants = {}}
local alternant_spec = {alternants = {}}
for _, comma_separated_group in ipairs(comma_separated_groups) do
for _, comma_separated_group in ipairs(comma_separated_groups) do
Line 807: Line 798:
`props` is an object specifying properties used during parsing, as follows:
`props` is an object specifying properties used during parsing, as follows:
{
{
   parse_indicator_spec = FUNCTION_TO_PARSE_AN_INDICATOR_SPEC (required; takes two arguments,
   parse_indicator_spec = FUNCTION_TO_PARSE_AN_INDICATOR_SPEC (required),
                          a string surrounded by angle brackets and the lemma, and should
   lang = LANG_OBJECT,
                          return a word_spec object containing properties describing the
   transliterate_respelling = FUNCTION_TO_TRANSLITERATE_RESPELLING,
                          indicators inside of the angle brackets),
  split_bracketed_runs_into_words = nil or FUNCTION_TO_SPLIT_BRACKETED_RUNS_INTO_WORDS,
   lang = LANG_OBJECT (only needed if manual translit or respelling may be present using //),
  allow_default_indicator = BOOLEAN_OR_NIL,
   transliterate_respelling = FUNCTION_TO_TRANSLITERATE_RESPELLING (only needed of respelling
   angle_brackets_omittable = BOOLEAN_OR_NIL,
                              is allowed in place of manual translit after //; takes one
   allow_blank_lemma = BOOLEAN_OR_NIL,
  argument, the respelling or translit, and should return the
  transliteration of any resplling but return any translit
  unchanged),
   allow_default_indicator = BOOLEAN_OR_NIL (true if the indicator in angle brackets can
                              be omitted and will be automatically added at the end of the
  multiword text (if no alternants) or at the end of each
  alternant (if alternants present),
   allow_blank_lemma = BOOLEAN_OR_NIL (true if a blank lemma is allowed; in such a case, the
                        calling function should substitute a default lemma, typically taken
from the pagename)
}
}
`parse_indicator_spec` is a required function that takes two arguments, a string surrounded by angle brackets and the
lemma, and should return a word_spec object containing properties describing the indicators inside of the angle
brackets).
`lang` is the language object for the language in question; only needed if manual translit or respelling may be present
using //.
`transliterate_respelling` is a function that is only needed if respelling is allowed in place of manual translit after
//. It takes one argument, the respelling or translit, and should return the transliteration of any respelling but
return any translit unchanged.
`split_bracketed_runs_into_words` is an optional function to split the passed-in text into words. It is used, for
example, to determine what text constitutes a word when followed by an angle-bracket spec, i.e. what the lemma to be
inflected is vs. surrounding fixed text. It takes one argument, the result of splitting the original text on brackets,
and should return alternating runs of words and split characters, or nil to apply the default algorithm. Specifically,
the value passed in is the result of calling `parse_balanced_segment_run(text, "[", "]")` from
[[Module:parse utilities]] on the original text, and the default version of this function calls
`split_alternating_runs(bracketed_runs, pattern, "preserve splitchar")`, where `bracketed_runs` is the value passed in
and `pattern` splits on either spaces or hyphens (unless the text begins with a hyphen, in which case splitting is only
on spaces, so that suffixes can be inflected).
`allow_default_indicator` should be true if an empty indicator in angle brackets <> can be omitted and should be
automatically added at the end of the multiword text (if no alternants) or at the end of each alternant (if alternants
present).
`angle_brackets_omittable` should be true if angle brackets can be omitted around a non-empty indicator in the presence
of a blank lemma. In this case, if the combined indicator spec has no angle brackets, they will be added around the
indicator (or around all indicators, if alternants are present). This only makes sense when `allow_blank_lemma` is
specified.
`allow_blank_lemma` should be true of if a blank lemma is allowed; in such a case, the calling function should
substitute a default lemma, typically taken from the pagename.


The return value is a table of the form
The return value is a table of the form
Line 847: Line 861:
]=]
]=]
function export.parse_inflected_text(text, props)
function export.parse_inflected_text(text, props)
if props.angle_brackets_omittable and not props.allow_blank_lemma then
error("If 'angle_brackets_omittable' is specified, so should 'allow_blank_lemma'")
end
local alternant_multiword_spec = {alternant_or_word_specs = {}}
local alternant_multiword_spec = {alternant_or_word_specs = {}}
local alternant_segments = m_string_utilities.capturing_split(text, "(%(%(.-%)%))")
local alternant_segments = m_string_utilities.capturing_split(text, "(%(%(.-%)%))")
Line 852: Line 869:
for i = 1, #alternant_segments do
for i = 1, #alternant_segments do
if i % 2 == 1 then
if i % 2 == 1 then
local segments = export.parse_balanced_segment_run(alternant_segments[i], "<", ">")
local segments = put.parse_balanced_segment_run(alternant_segments[i], "<", ">")
-- Disable allow_default_indicator if alternants are present and we're processing
-- Disable allow_default_indicator if alternants are present and we're processing
-- the non-alternant text. Otherwise we will try to treat the non-alternant text
-- the non-alternant text. Otherwise we will try to treat the non-alternant text
Line 875: Line 892:
alternant_multiword_spec.post_text_translit = last_post_text_translit
alternant_multiword_spec.post_text_translit = last_post_text_translit
return alternant_multiword_spec
return alternant_multiword_spec
end
-- Older entry point. FIXME: Convert all uses of this to use export.parse_inflected_text instead.
function export.parse_alternant_multiword_spec(text, parse_indicator_spec, allow_default_indicator, allow_blank_lemma)
local props = {
parse_indicator_spec = parse_indicator_spec,
allow_default_indicator = allow_default_indicator,
allow_blank_lemma = allow_blank_lemma,
}
return export.parse_inflected_text(text, props)
end
end


Line 905: Line 911:




local function append_forms(props, formtable, slot, forms, before_text, before_text_no_links,
 
before_text_translit)
--[=[
Subfunction of export.inflect_multiword_or_alternant_multiword_spec(). This is used in building up the inflections of
multiword expressions. The basic purpose of this function is to append a set of forms representing the inflections of
a given inflected term in a given slot onto the existing forms for that slot. Given a multiword expression potentially
consisting of several inflected terms along with fixed text in between, we work iteratively from left to right, adding
the new forms onto the existing ones. Normally, all combinations of new and existing forms are created, meaning if
there are M existing forms and N new ones, we will end up with M*N forms. However, some of these combinations can be
rejected using the variant mechanism (see the description of get_variants below).
 
Specifically, `formtable` is a table of per-slot forms, where the key is a slot and the value is a list of form objects
(objects of the form {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}). `slot` is the slot in question.
`forms` specifies the forms to be appended onto the existing forms, and is likewise a list of form objects. `props`
is the same as in export.inflect_multiword_or_alternant_multiword_spec(). `before_text` is the fixed text that goes
before the forms to be added. `before_text_no_links` is the same as `before_text` but with any links (i.e. hyperlinks
of the form [[TERM]] or [[TERM|DISPLAY]]) converted into raw terms using remove_links() in [[Module:links]], and
`before_text_translit` is optional manual translit of `before_text_no_links`.
 
Note that the value "?" in a form is "infectious" in that if either the existing or new form has the value "?", the
resulting combination will also be "?". This allows "?" to be used to mean "unknown".
]=]
local function append_forms(props, formtable, slot, forms, before_text, before_text_no_links, before_text_translit)
if not forms then
if not forms then
return
return
Line 919: Line 945:
-- Reject combination due to non-matching variant codes.
-- Reject combination due to non-matching variant codes.
else
else
local new_form = old_form.form .. before_text .. form.form
local new_form
local new_translit
local new_translit
if old_form.translit or before_text_translit or form.translit then
if old_form.form == "?" or form.from == "?" then
if not props.lang then
new_form = "?"
error("Internal error: If manual translit is given, 'props.lang' must be set")
else
end
new_form = old_form.form .. before_text .. form.form
if not before_text_translit then
if old_form.translit or before_text_translit or form.translit then
before_text_translit = props.lang:transliterate(before_text_no_links) or ""
if not props.lang then
error("Internal error: If manual translit is given, 'props.lang' must be set")
end
if not before_text_translit then
before_text_translit = (props.lang:transliterate(before_text_no_links)) or ""
end
local old_translit = old_form.translit or (props.lang:transliterate(m_links.remove_links(old_form.form))) or ""
local translit = form.translit or (props.lang:transliterate(m_links.remove_links(form.form))) or ""
new_translit = old_translit .. before_text_translit .. translit
end
end
local old_translit = old_form.translit or props.lang:transliterate(m_links.remove_links(old_form.form)) or ""
local translit = form.translit or props.lang:transliterate(m_links.remove_links(form.form)) or ""
new_translit = old_translit .. before_text_translit .. translit
end
end
local new_footnotes = export.combine_footnotes(old_form.footnotes, form.footnotes)
local new_footnotes = export.combine_footnotes(old_form.footnotes, form.footnotes)
Line 942: Line 973:




--[=[
Top-level inflection function. Create the inflections of a noun, verb, adjective or similar. `multiword_spec` is as
returned by `parse_inflected_text` and describes the properties of the term to be inflected, including all the
user-provided inflection specifications (e.g. the number, gender, conjugation/declension/etc. of each word) and the
surrounding text. `props` indicates how to do the actual inflection (see below). The resulting inflected forms are
stored into the `.forms` property of `multiword_spec`. This property holds a table whose keys are slots (i.e. ID's
of individual inflected forms, such as "pres_1sg" for the first-person singular present indicative tense of a verb)
and whose values are lists of the form { form = FORM, translit = MANUAL_TRANSLIT_OR_NIL, footnotes = FOOTNOTE_LIST_OR_NIL},
where FORM is a string specifying the value of the form (e.g. "ouço" for the first-person singular present indicative
of the Portuguese verb [[ouvir]]); MANUAL_TRANSLIT_OR_NIL is the corresponding manual transliteration if needed (i.e.
if the form is in a non-Latin script and the automatic transliteration is incorrect or unavailable), otherwise nil;
and FOOTNOTE_LIST_OR_NIL is a list of footnotes to be attached to the form, or nil for no footnotes. Note that
currently footnotes must be surrounded by brackets, e.g "[archaic]", and should not begin with a capital letter or end
with a period. (Conversion from "[archaic]" to "Archaic." happens automatically.)
This function has no return value, but modifies `multiword_spec` in-place, adding the `forms` table as described above.
After calling this function, call show_forms() on the `forms` table to convert the forms and footnotes given in this
table to strings suitable for display.
`props` is an object specifying properties used during inflection, as follows:
{
  slot_list = {{"SLOT", "ACCEL"}, {"SLOT", "ACCEL"}, ...},
  slot_table = {SLOT = "ACCEL", SLOT = "ACCEL", ...},
  skip_slot = FUNCTION_TO_SKIP_A_SLOT or nil,
  lang = LANG_OBJECT or nil,
  inflect_word_spec = FUNCTION_TO_INFLECT_AN_INDIVIDUAL_WORD,
  get_variants = FUNCTION_TO_RETURN_A_VARIANT_CODE or nil,
  include_user_specified_links = BOOLEAN,
}
`slot_list` is a list of two-element lists of slots and associated accelerator inflections. SLOT is arbitrary but
should correspond with slot names as generated by `inflect_word_spec`. ACCEL is the corresponding accelerator form;
e.g. if SLOT is "pres_1sg", ACCEL might be "1|s|pres|ind". ACCEL is actually unused during inflection, but is used
during show_forms(), which takes the same `slot_list` as a property upon input.
`slot_table` is a table mapping slots to associated accelerator inflections and serves the same function as
`slot_list`. Only one of `slot_list` or `slot_table` must be given. For new code it is preferable to use `slot_list`
because this allows you to control the order of processing slots, which may occasionally be important.
`skip_slot` is a function of one argument, a slot name, and should return a boolean indicating whether to skip the
given slot during inflection. It can be used, for example, to skip singular slots if the overall term being inflected
is plural-only, and vice-versa.
`lang` is a language object. This is only used to generate manual transliteration. If the language is written in the
Latin script or manual transliteration cannot be specified in the input to parse_inflected_text(), this can be omitted.
(Manual transliteration is allowed if the `lang` object is set in the `props` passed to parse_inflected_text().)
`inflect_word_spec` is the function to do the actual inflection. It is passed a single argument, which is a WORD_SPEC
object describing the word to be inflected and the user-provided inflection specifications. It is exactly the same as
was returned by the `parse_indicator_spec` function provided in the `props` sent on input to `parse_inflected_text`, but
has additional fields describing the word to be inflected and the surrounding text, as follows:
{
  lemma = "LEMMA",
  before_text = "TEXT-BEFORE-WORD",
  before_text_no_links = "TEXT-BEFORE-WORD-NO-LINKS",
  before_text_translit = "MANUAL-TRANSLIT-OF-TEXT-BEFORE-WORD" or nil (if no manual translit or respelling was specified in the before-text)
  -- Fields as described in parse_indicator_spec()
  ...
}
Here LEMMA is the word to be inflected as specified by the user (including any links if so given), and the
`before_text*` fields describe the raw text preceding the word to be inflected. Any other fields in this object are as
set by `parse_inflected_text`, and describe things like the gender, number, conjugation/declension, etc. as specified
by the user in the <...> spec following the word to be inflected.
`inflect_word_spec` should initialize the `.forms` property of the passed-in WORD_SPEC object to the inflected forms of
the word in question. The value of this property is a table of the same format as the `.forms` property that is
ultimately generated by inflect_multiword_or_alternant_multiword_spec() and described above near the top of this
documentation: i.e. a table whose keys are slots and whose values are lists of the form
  { form = FORM, translit = MANUAL_TRANSLIT_OR_NIL, footnotes = FOOTNOTE_LIST_OR_NIL}.
`get_variants` is either nil or a function of one argument (a string, the value of an individual form). The purpose of
this function is to ensure that in a multiword term where a given slot has more than one possible variant, the final
output has only parallel variants in it. For example, feminine nouns and adjectives in Russian have two possible
endings, one typically in -ой (-oj) and the other in -ою (-oju). If we have a feminine adjective-noun combination (or
a hyphenated feminine noun-noun combination, or similar), and we don't specify `get_variants`, we'll end up with four
values for the instrumental singular: one where both adjective and noun end in -ой, one where both end in -ою, and
two where one of the words ends in -ой and the other in -ою. In general if we have N words each with K variants, we'll
end up with an explosion of N^K possibilities. `get_variants` avoids this by returning a variant code (an arbitary
string) for each variant. If two words each have a non-empty variant code, and the variant codes disagree, the
combination will be rejected. If `get_variants` is not provided, or either variant code is an empty string, or the
variant codes agree, the combination is allowed.
The recommended way to use `get_variants` is as follows:
1. During inflection in `inflect_word_spec`, add a special character or string to each of the variants generated for a
  given slot when there is more than one. (As an optimization, do this only when there is more than one word being
  inflected.) Special Unicode characters can be used for this purpose, e.g. U+FFF0, U+FFF1, ..., U+FFFD, which have
  no meaning in Unicode.
2. Specify `get_variants` as a function that pulls out and returns the special character(s) or string included in the
  variant forms.
3. When calling show_forms(), specify a `canonicalize` function that removes the variant code character(s) or string
  from each form before converting to the display form.
See [[Module:hi-verb]] and [[Module:hi-common]] for an example of doing this in a generalized fashion. (Look for
add_variant_codes(), get_variants() and remove_variant_codes().)
`include_user_specified_links`, if given, ensures that user-specified links in the raw text surrounding a given word
are preserved in the output. If omitted or set to false, such links will be removed and the whole multiword expression
will be linked.
]=]
function export.inflect_multiword_or_alternant_multiword_spec(multiword_spec, props)
function export.inflect_multiword_or_alternant_multiword_spec(multiword_spec, props)
multiword_spec.forms = {}
multiword_spec.forms = {}
Line 949: Line 1,080:
if word_spec.alternants then
if word_spec.alternants then
inflect_alternants(word_spec, props)
inflect_alternants(word_spec, props)
elseif props.decline_word_spec then
props.decline_word_spec(word_spec)
else
else
props.inflect_word_spec(word_spec)
props.inflect_word_spec(word_spec)
Line 977: Line 1,106:
end)
end)
end
end
end
function export.decline_multiword_or_alternant_multiword_spec(multiword_spec, props)
return export.inflect_multiword_or_alternant_multiword_spec(multiword_spec, props)
end
end


Line 1,005: Line 1,129:
seen_notes = {},
seen_notes = {},
noteindex = 1,
noteindex = 1,
seen_refs = {},
}
}
end
end
Line 1,014: Line 1,139:
end
end
local link_indices = {}
local link_indices = {}
local all_refs = {}
for _, footnote in ipairs(form.footnotes) do
for _, footnote in ipairs(form.footnotes) do
footnote = export.expand_footnote(footnote)
local refs
local this_noteindex = footnote_obj.seen_notes[footnote]
footnote, refs = export.expand_footnote_or_references(footnote)
if not this_noteindex then
if footnote then
-- Generate a footnote index.
local this_noteindex = footnote_obj.seen_notes[footnote]
this_noteindex = footnote_obj.noteindex
if not this_noteindex then
footnote_obj.noteindex = footnote_obj.noteindex + 1
-- Generate a footnote index.
table.insert(footnote_obj.notes, '<sup style="color: red">' .. this_noteindex .. '</sup>' .. footnote)
this_noteindex = footnote_obj.noteindex
footnote_obj.seen_notes[footnote] = this_noteindex
footnote_obj.noteindex = footnote_obj.noteindex + 1
table.insert(footnote_obj.notes, '<sup style="color: red">' .. this_noteindex .. '</sup>' .. footnote)
footnote_obj.seen_notes[footnote] = this_noteindex
end
m_table.insertIfNot(link_indices, this_noteindex)
end
if refs then
for _, ref in ipairs(refs) do
if not ref.name then
local this_refhash = footnote_obj.seen_refs[ref.text]
if not this_refhash then
-- Different text needs to have different auto-generated names, globally across the entire page,
-- including across different invocations of {{it-verb}} or {{it-conj}}. The easiest way to accomplish
-- this is to use a message-digest hashing function. It does not have to be cryptographically secure
-- (MD5 is insecure); it just needs to have low probability of collisions.
this_refhash = mw.hash.hashValue("md5", ref.text)
footnote_obj.seen_refs[ref.text] = this_refhash
end
ref.autoname = this_refhash
end
-- I considered using "n" as the default group rather than nothing, to more clearly distinguish regular
-- footnotes from references, but this requires referencing group "n" as <references group="n"> below,
-- which is non-obvious.
m_table.insertIfNot(all_refs, ref)
end
end
end
m_table.insertIfNot(link_indices, this_noteindex)
end
end
table.sort(link_indices)
table.sort(link_indices)
return '<sup style="color: red">' .. table.concat(link_indices, ",") .. '</sup>'
local function sort_refs(r1, r2)
-- FIXME, we are now sorting on an arbitrary hash. Should we keep track of the order we
-- saw the autonamed references and sort on that?
if r1.autoname and r2.name then
return true
elseif r1.name and r2.autoname then
return false
elseif r1.name and r2.name then
return r1.name < r2.name
else
return r1.autoname < r2.autoname
end
end
table.sort(all_refs, sort_refs)
for i, ref in ipairs(all_refs) do
local refargs = {name = ref.name or ref.autoname, group = ref.group}
all_refs[i] = mw.getCurrentFrame():extensionTag("ref", ref.text, refargs)
end
local link_text
if #link_indices > 0 then
link_text = '<sup style="color: red">' .. table.concat(link_indices, ",") .. '</sup>'
else
link_text = ""
end
local ref_text = table.concat(all_refs)
if link_text ~= "" and ref_text ~= "" then
return link_text .. "<sup>,</sup>" .. ref_text
else
return link_text .. ref_text
end
end
 
 
-- Add links around words in a term. If multiword_only, do it only in multiword terms.
function export.add_links(term, multiword_only)
if form == "" or form == " " then
return form
end
if not form:find("%[%[") then
if rfind(form, "[%s%p]") then --optimization to avoid loading [[Module:headword]] on single-word forms
local m_headword = require("Module:headword")
if m_headword.head_is_multiword(form) then
form = m_headword.add_multiword_links(form)
end
end
if not multiword_only and not form:find("%[%[") then
form = "[[" .. form .. "]]"
end
end
return form
end
 
 
-- Remove redundant link surrounding entire term.
function export.remove_redundant_links(term)
return rsub(term, "^%[%[([^%[%]|]*)%]%]$", "%1")
end
 
 
-- Add links to all before and after text; for use in inflection modules that preserve links in multiword lemmas and
-- include links in non-lemma forms rather than allowing the entire form to be a link. If `remember_original`, remember
-- the original user-specified before/after text so we can reconstruct the original spec later. `add_links` is a
-- function of one argument to add links to a given piece of text; if unspecified, it defaults to `export.add_links`.
function export.add_links_to_before_and_after_text(alternant_multiword_spec, remember_original, add_links)
add_links = add_links or export.add_links
local function add_links_remember_original(object, field)
if remember_original then
object["user_specified_" .. field] = object[field]
end
object[field] = add_links(object[field])
end
 
for _, alternant_or_word_spec in ipairs(alternant_multiword_spec.alternant_or_word_specs) do
add_links_remember_original(alternant_or_word_spec, "before_text")
if alternant_or_word_spec.alternants then
for _, multiword_spec in ipairs(alternant_or_word_spec.alternants) do
for _, word_spec in ipairs(multiword_spec.word_specs) do
add_links_remember_original(word_spec, "before_text")
end
add_links_remember_original(multiword_spec, "post_text")
end
end
end
add_links_remember_original(alternant_multiword_spec, "post_text")
end
end


Line 1,038: Line 1,270:
{
{
   lang = LANG_OBJECT,
   lang = LANG_OBJECT,
   lemmas = LEMMAS,
   lemmas = {"LEMMA", "LEMMA", ...},
   slot_table = SLOT_TABLE,
   slot_list = {{"SLOT", "ACCEL"}, {"SLOT", "ACCEL"}, ...},
   slot_list = SLOT_LIST,
   slot_table = {SLOT = "ACCEL", SLOT = "ACCEL", ...},
   include_translit = BOOLEAN,
   include_translit = BOOLEAN,
   create_footnote_obj = FUNCTION_TO_CREATE_FOOTNOTE_OBJ,
   create_footnote_obj = nil or FUNCTION_TO_CREATE_FOOTNOTE_OBJ,
   canonicalize = FUNCTION_TO_CANONICALIZE_EACH_FORM,
   canonicalize = nil or FUNCTION_TO_CANONICALIZE_EACH_FORM,
   transform_link = FUNCTION_TO_TRANSFORM_EACH_LINK,
   transform_link = nil or FUNCTION_TO_TRANSFORM_EACH_LINK,
   join_spans = FUNCTION_TO_JOIN_SPANS,
  transform_accel_obj = nil or FUNCTION_TO_TRANSFORM_EACH_ACCEL_OBJ,
   join_spans = nil or FUNCTION_TO_JOIN_SPANS,
   allow_footnote_symbols = BOOLEAN,
   allow_footnote_symbols = BOOLEAN,
   footnotes = EXTRA_FOOTNOTES,
   footnotes = nil or {"EXTRA_FOOTNOTE", "EXTRA_FOOTNOTE", ...},
}
}
`lemmas` is the list of lemmas, used in the accelerators.
`lemmas` is the list of lemmas, used in the accelerators.
`slot_list` is a list of two-element lists of slots and associated accelerator inflections.
 
`slot_table` is a table mapping slots to associated accelerator inflections.
`slot_list` is a list of two-element lists of slots and associated accelerator inflections. SLOT should correspond to
  (One of `slot_list` or `slot_table` must be given.)
slots generated during inflect_multiword_or_alternant_multiword_spec(). ACCEL is the corresponding accelerator form;
If `include_translit` is given, transliteration is included in the generated strings.
e.g. if SLOT is "pres_1sg", ACCEL might be "1|s|pres|ind". ACCEL is used in generating entries for accelerator support
(see [[WT:ACCEL]]).
 
`slot_table` is a table mapping slots to associated accelerator inflections and serves the same function as
`slot_list`. Only one of `slot_list` or `slot_table` must be given. For new code it is preferable to use `slot_list`
because this allows you to control the order of processing slots, which may occasionally be important.
 
`include_translit`, if given, causes transliteration to be included in the generated strings.
 
`create_footnote_obj` is an optional function of no arguments to create the footnote object used to track footnotes;
`create_footnote_obj` is an optional function of no arguments to create the footnote object used to track footnotes;
  see export.create_footnote_obj(). Customizing it is useful to prepopulate the footnote table using
see export.create_footnote_obj(). Customizing it is useful to prepopulate the footnote table using
  export.get_footnote_text().
export.get_footnote_text().
`canonicalize` is an optional function of one argument (a form) to canonicalize each form before processing; it can return nil
 
  for no change.
`canonicalize` is an optional function of one argument (a form) to canonicalize each form before processing; it can
`transform_link` is an optional function to transform a linked form prior to further processing; it is passed three arguments
return nil for no change. The most common purpose of this function is to remove variant codes from the form. See the
  (slot, link, link_tr) and should return the transformed link (or if translit is active, it should return the transformed link
documentation for inflect_multiword_or_alternant_multiword_spec() for a description of variant codes and their purpose.
  and corresponding translit). It can return nil for no change.
 
`join_spans` is an optional function of three arguments (slot, orig_spans, tr_spans) where the spans in question are after
`generate_link` is an optional function to generate the link text for a given form. It is passed four arguments (slot,
  linking and footnote processing. It should return a string (the joined spans) or nil for the default algorithm, which separately
for, origentry, accel_obj) where `slot` is the slot being processed, `form` is the specific form object to generate a
  joins the orig_spans and tr_spans with commas and puts a newline between them.
link for, `origentry` is the actual text to convert into a link, and `accel_obj` is the accelerator object to include
If `allow_footnote_symbols` is given, footnote symbols attached to forms (e.g. numbers, asterisk) are separated off, placed outside
in the link. If nil is returned, the default algorithm will apply, which is to call
the links, and superscripted. In this case, `footnotes` should be a list of footnotes (preceded by footnote symbols, which are
`full_link{lang = lang, term = origentry, tr = "-", accel = accel_obj}` from [[Module:links]]. This can be used e.g. to
superscripted). These footnotes are combined with any footnotes found in the forms and placed into `forms.footnotes`.
customize the appearance of the link. Note that the link should not include any transliteration because it is handled
specially (all transliterations are grouped together).
 
`transform_link` is an optional function to transform a linked form prior to further processing. It is passed three
arguments (slot, link, link_tr) and should return the transformed link (or if translit is active, it should return two
values, the transformed link and corresponding translit). It can return nil for no change. `transform_link` is used,
for example, in [[Module:de-verb]], where it adds the appropriate pronoun ([[ich]], [[du]], etc.) to finite verb forms,
and adds [[dass]] before special subordinate-clause variants of finte verb forms.
 
`transform_accel_obj` is an optional function of three arguments (slot, formobj, accel_obj) to transform the default
constructed accelerator object in `accel_obj` into an object that should be passed to full_link() in [[Module:links]].
It should return the new accelerator object, or nil for no acceleration. It can destructively modify the accelerator
object passed in. NOTE: This is called even when the passed-in `accel_obj` is nil (either because the accelerator in
`slot_table` or `slot_list` is "-", or because the form contains links, or because for some reason there is no lemma
available). If is used e.g. in [[Module:es-verb]] and [[Module:pt-verb]] to replace the form with the original verb
spec used to generate the verb, so that the accelerator code can generate the appropriate call to {{es-verb form of}}
or {{pt-verb form of}}, which computes the inflections, instead of directly listing the inflections.
 
`join_spans` is an optional function of three arguments (slot, orig_spans, tr_spans) where the spans in question are
after linking and footnote processing. It should return a string (the joined spans) or nil for the default algorithm,
which separately joins the orig_spans and tr_spans with commas and puts a newline between them.
 
`allow_footnote_symbols`, if given, causes any footnote symbols attached to forms (e.g. numbers, asterisk) to be
separated off, placed outside the links, and superscripted. In this case, `footnotes` should be a list of footnotes
(preceded by footnote symbols, which are superscripted). These footnotes are combined with any footnotes found in the
forms and placed into `forms.footnotes`. This mechanism of specifying footnotes is provided for backward compatibility
with certain existing inflection modules and should not be used for new modules. Instead, use the regular footnote
mechanism specified using the `footnotes` property attached to each form object.
]=]
]=]
function export.show_forms(forms, props)
function export.show_forms(forms, props)
local footnote_obj = props.create_footnote_obj and props.create_footnote_obj() or export.create_footnote_obj()
local footnote_obj = props.create_footnote_obj and props.create_footnote_obj() or export.create_footnote_obj()
local accel_lemma = props.lemmas[1]
local function fetch_form_and_translit(entry, remove_links)
local accel_lemma_translit
local form, translit
if type(accel_lemma) == "table" then
if type(entry) == "table" then
accel_lemma_translit = accel_lemma.translit
form, translit = entry.form, entry.translit
accel_lemma = accel_lemma.form
else
form = entry
end
if remove_links then
form = m_links.remove_links(form)
end
return form, translit
end
end
accel_lemma = accel_lemma and m_links.remove_links(accel_lemma) or nil
 
local lemma_forms = {}
local lemma_forms = {}
for _, lemma in ipairs(props.lemmas) do
for _, lemma in ipairs(props.lemmas) do
if type(lemma) == "table" then
local lemma_form, _ = fetch_form_and_translit(lemma)
m_table.insertIfNot(lemma_forms, lemma.form)
m_table.insertIfNot(lemma_forms, lemma_form)
else
m_table.insertIfNot(lemma_forms, lemma)
end
end
end
forms.lemma = #lemma_forms > 0 and table.concat(lemma_forms, ", ") or mw.title.getCurrentTitle().text
forms.lemma = #lemma_forms > 0 and table.concat(lemma_forms, ", ") or mw.title.getCurrentTitle().text
local function get_accelerator_for_form(slot, formobj, i, origentry, accel_form)
end


local m_table_tools = require("Module:table tools")
local m_table_tools = require("Module:table tools")
Line 1,096: Line 1,371:
local tr_spans = {}
local tr_spans = {}
local orignotes, trnotes = "", ""
local orignotes, trnotes = "", ""
if type(formvals) ~= "table" then
error("Internal error: For slot '" .. slot .. "', expected table but saw " .. mw.dumpObject(formvals))
end
for i, form in ipairs(formvals) do
for i, form in ipairs(formvals) do
local orig_text = props.canonicalize and props.canonicalize(form.form) or form.form
local orig_text = props.canonicalize and props.canonicalize(form.form) or form.form
Line 1,110: Line 1,388:
-- remove redundant link surrounding entire form
-- remove redundant link surrounding entire form
origentry = export.remove_redundant_links(origentry)
origentry = export.remove_redundant_links(origentry)
-------------------- Compute the accelerator object. -----------------
local accel_obj
local accel_obj
-- check if form still has links; if so, don't add accelerators
-- Check if form still has links; if so, don't add accelerators because the resulting entries will
-- because the resulting entries will be wrong
-- be wrong.
if accel_lemma and not form.no_accel and accel_form ~= "-" and
if props.lemmas[1] and not form.no_accel and accel_form ~= "-" and not rfind(origentry, "%[%[") then
not rfind(origentry, "%[%[") then
-- If there is more than one form or more than one lemma, things get tricky. Often, there are
-- the same number of forms as lemmas, e.g. for Ukrainian [[зимовий]] "wintry; winter (rel.)",
-- which can be stressed зимо́вий or зимови́й with corresponding masculine/neuter genitive
-- singulars зимо́вого or зимово́го etc. In this case, usually the forms and lemmas match up so
-- we do this. If there are different numbers of forms than lemmas, it's usually one lemma
-- against several forms e.g. Ukrainian [[міст]] "bridge" with genitive singular мо́сту or моста́
-- (accent patterns b or c) or [[ложка|ло́жка]] "spoon" with nominative plural ло́жки or ложки́
-- (accent patterns a or c). Here, we should assign the same lemma to both forms. The opposite
-- can happen, e.g. [[черга]] "turn, queue" stressed че́рга or черга́ with nominative plural only
-- че́рги (accent patterns a or d). Here we should assign both lemmas to the same form. In more
-- complicated cases, with more than one lemma and form and different numbers of each, we try
-- to align them as much as possible, e.g. if there are somehow eight forms and three lemmas,
-- we assign lemma 1 to forms 1-3, lemma 2 to forms 4-6 and lemma 3 to forms 7 and 8, and
-- conversely if there are somehow three forms and eight lemmas. This is likely to be wrong, but
-- (a) there's unlikely to be a single algorithm that works in all such circumstances, and (b)
-- these cases are vanishingly rare or nonexistent. Properly we should try to remember which
-- form was generated by which lemma, but that is significant extra work for little gain.
local first_lemma, last_lemma
if #formvals >= #props.lemmas then
-- More forms than lemmas. Try to even out the forms assigned per lemma.
local forms_per_lemma = math.ceil(#formvals / #props.lemmas)
first_lemma = math.floor((i - 1) / forms_per_lemma) + 1
last_lemma = first_lemma
else
-- More lemmas than forms. Try to even out the lemmas assigned per form.
local lemmas_per_form = math.ceil(#props.lemmas / #formvals)
first_lemma = (i - 1) * lemmas_per_form + 1
last_lemma = math.min(first_lemma + lemmas_per_form - 1, #props.lemmas)
end
local accel_lemma, accel_lemma_translit
if first_lemma == last_lemma then
accel_lemma, accel_lemma_translit = fetch_form_and_translit(props.lemmas[first_lemma], "remove links")
else
accel_lemma = {}
accel_lemma_translit = {}
for j=first_lemma, last_lemma do
local this_lemma = props.lemmas[j]
local this_accel_lemma, this_accel_lemma_translit = fetch_form_and_translit(props.lemmas[j], "remove links")
-- Do not use table.insert() especially for the translit because it may be nil and in
-- that case we want gaps in the array.
accel_lemma[j - first_lemma + 1] = this_accel_lemma
accel_lemma_translit[j - first_lemma + 1] = this_accel_lemma_translit
end
end
 
accel_obj = {
accel_obj = {
form = accel_form,
form = accel_form,
Line 1,122: Line 1,447:
}
}
end
end
link = m_links.full_link{lang = props.lang, term = origentry, tr = "-", accel = accel_obj}
-- Postprocess if requested.
if props.transform_accel_obj then
accel_obj = props.transform_accel_obj(slot, form, accel_obj)
end
 
-------------------- Generate link to form. -----------------
 
if props.generate_link then
link = props.generate_link(slot, form, origentry, accel_obj)
end
link = link or m_links.full_link{lang = props.lang, term = origentry, tr = "-", accel = accel_obj}
end
end
local tr = props.include_translit and (form.translit or props.lang:transliterate(m_links.remove_links(orig_text))) or nil
local tr = props.include_translit and (form.translit or (props.lang:transliterate(m_links.remove_links(orig_text)))) or nil
local trentry
local trentry
if props.allow_footnote_symbols and tr then
if props.allow_footnote_symbols and tr then
Line 1,184: Line 1,519:




--[=[
-- Given a list of forms (each of which is a table of the form
Older entry point. Same as `show_forms` but automatically sets include_translit = true in props.
-- {form=FORM, translit=MANUAL_TRANSLIT, footnotes=FOOTNOTES}), concatenate into a
]=]
-- SLOT=FORM//TRANSLIT,FORM//TRANSLIT,... string (or SLOT=FORM,FORM,... if no translit),
function export.show_forms_with_translit(forms, lemmas, slot_table, props, footnotes, allow_footnote_symbols)
-- replacing embedded | signs with <!>.
props.lemmas = lemmas
function export.concat_forms_in_slot(forms)
props.slot_table = slot_table
if forms then
props.footnotes = footnotes
local new_vals = {}
props.allow_footnote_symbols = allow_footnote_symbols
for _, v in ipairs(forms) do
props.include_translit = true
local form = v.form
return export.show_forms(forms, props)
if v.translit then
form = form .. "//" .. v.translit
end
table.insert(new_vals, rsub(form, "|", "<!>"))
end
return table.concat(new_vals, ",")
else
return nil
end
end
end




return export
return export
Retrieved from "https://linguifex.com/wiki/Special:MobileDiff/302586"

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