12272864087

Committed 11 Dec 2024 08:55AM UTC coverage: 29.607% (-41.0%) from 70.614%

Build # 12272864087

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web-flow

Commit Message

Merge 95cccf286 into f394f608c

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/packages/bibtex/csl/utils/casing.lua

--- Casing functions for CSL locales.
--
-- @copyright License: MIT (c) 2024 Omikhleia
--
-- Objectives: provide functions to handle text casing in CSL locales.
--

local icu = require("justenoughicu")
-- N.B. We don't use the textcase package here:
-- The language is a BCP47 identifier from the CSL locale.

local capitalizeFirst = function (text, lang)
   local first = luautf8.sub(text, 1, 1)
   local rest = luautf8.sub(text, 2)
   return icu.case(first, lang, "upper") .. rest
end

--- Text casing methods for CSL.
-- @table casing methods for lower, upper, capitalize-first, capitalize-all, title, sentence
local casing = {
   -- Straightforward
   ["lowercase"] = function (text, lang)
      return icu.case(text, lang, "lower")
   end,
   ["uppercase"] = function (text, lang)
      return icu.case(text, lang, "upper")
   end,
   ["capitalize-first"] = capitalizeFirst,

   -- Opinionated: even ICU does not really handle this well.
   -- It does not have good support for exceptions (small words, prepositions,
   -- articles), etc. in most languages
   -- So fallback to capitalize-first.
   ["capitalize-all"] = capitalizeFirst,
   ["title"] = capitalizeFirst,

   -- Deprecated.
   -- Let's not bother with it.
   ["sentence"] = function (text, _)
      SU.warn("Sentence case is deprecated in CSL 1.0.x (ignored)")
      return text
   end,
}

return casing

1	--- Casing functions for CSL locales.
2	--
3	-- @copyright License: MIT (c) 2024 Omikhleia
4	--
5	-- Objectives: provide functions to handle text casing in CSL locales.
6	--
7
8	local icu = require("justenoughicu")	×
9	-- N.B. We don't use the textcase package here:
10	-- The language is a BCP47 identifier from the CSL locale.
11
12	local capitalizeFirst = function (text, lang)
13	local first = luautf8.sub(text, 1, 1)	×
14	local rest = luautf8.sub(text, 2)	×
15	return icu.case(first, lang, "upper") .. rest	×
16	end
17
18	--- Text casing methods for CSL.
19	-- @table casing methods for lower, upper, capitalize-first, capitalize-all, title, sentence
20	local casing = {	×
21	-- Straightforward
22	["lowercase"] = function (text, lang)
23	return icu.case(text, lang, "lower")	×
24	end,
25	["uppercase"] = function (text, lang)
26	return icu.case(text, lang, "upper")	×
27	end,
28	["capitalize-first"] = capitalizeFirst,
29
30	-- Opinionated: even ICU does not really handle this well.
31	-- It does not have good support for exceptions (small words, prepositions,
32	-- articles), etc. in most languages
33	-- So fallback to capitalize-first.
34	["capitalize-all"] = capitalizeFirst,
35	["title"] = capitalizeFirst,
36
37	-- Deprecated.
38	-- Let's not bother with it.
39	["sentence"] = function (text, _)
40	SU.warn("Sentence case is deprecated in CSL 1.0.x (ignored)")	×
41	return text	×
42	end,
43	}
44
45	return casing	×

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