9322841962

Committed 31 May 2024 06:41PM UTC coverage: 47.763% (-8.9%) from 56.674%

Build # 9322841962

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github

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web-flow

Commit Message

Merge 71aa6f2a1 into bb89a7e79

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75.2

/core/font.lua

--- font
-- @module SILE.font
local icu = require("justenoughicu")

local lastshaper

SILE.registerCommand("font", function (options, content)
   if SU.ast.hasContent(content) then
      SILE.settings:pushState()
   end
   if options.filename then
      SILE.settings:set("font.filename", options.filename)
   end
   if options.family then
      SILE.settings:set("font.family", options.family)
      SILE.settings:set("font.filename", "")
   end
   if options.size then
      local size = SU.cast("measurement", options.size)
      if not size then
         SU.error("Couldn't parse font size " .. options.size)
      end
      SILE.settings:set("font.size", size:absolute())
   end
   if options.weight then
      SILE.settings:set("font.weight", 0 + options.weight)
   end
   if options.style then
      SILE.settings:set("font.style", options.style)
   end
   if options.variant then
      SILE.settings:set("font.variant", options.variant)
   end
   if options.features then
      SILE.settings:set("font.features", options.features)
   end
   if options.variations then
      SILE.settings:set("font.variations", options.variations)
   end
   if options.direction then
      SILE.settings:set("font.direction", options.direction)
   end
   if options.language then
      if options.language ~= "und" and icu and icu.canonicalize_language then
         local newlang = icu.canonicalize_language(options.language)
         -- if newlang ~= options.language then
         -- SU.warn("Language '"..options.language.."' not canonical, '"..newlang.."' will be used instead.")
         -- end
         options.language = newlang
      end
      SILE.settings:set("document.language", options.language)
      fluent:set_locale(options.language)
      SILE.languageSupport.loadLanguage(options.language)
   end
   if options.script then
      SILE.settings:set("font.script", options.script)
   elseif SILE.settings:get("document.language") then
      local lang = SILE.languageSupport.languages[SILE.settings:get("document.language")]
      if lang and lang.defaultScript then
         SILE.settings:set("font.script", lang.defaultScript)
      end
   end
   if options.hyphenchar then
      -- must be in the form of, for example, "-" or "U+2010" or "0x2010" (Unicode hex codepoint)
      SILE.settings:set("font.hyphenchar", SU.utf8charfromcodepoint(options.hyphenchar))
   end

   -- We must *actually* load the font here, because by the time we're inside
   -- SILE.shaper.shapeToken, it's too late to respond appropriately to things
   -- that the post-load hook might want to do.
   SILE.font.cache(SILE.font.loadDefaults({}), SILE.shaper.getFace)

   if SU.ast.hasContent(content) then
      SILE.process(content)
      SILE.settings:popState()
      if SILE.shaper._name == "harfbuzzWithColor" and lastshaper then
         SU.debug("color-fonts", "Switching from color fonts shaper back to previous shaper")
         SILE.typesetter:leaveHmode(true)
         lastshaper, SILE.shaper = nil, lastshaper
      end
   end
end, "Set current font family, size, weight, style, variant, script, direction and language", nil, true)

SILE.settings:declare({ parameter = "font.family", type = "string or nil", default = "Gentium Plus" })
SILE.settings:declare({ parameter = "font.size", type = "number or integer", default = 10 })
SILE.settings:declare({ parameter = "font.weight", type = "integer", default = 400 })
SILE.settings:declare({ parameter = "font.variant", type = "string", default = "normal" })
SILE.settings:declare({ parameter = "font.script", type = "string", default = "" })
SILE.settings:declare({ parameter = "font.style", type = "string", default = "" })
SILE.settings:declare({ parameter = "font.direction", type = "string", default = "" })
SILE.settings:declare({ parameter = "font.filename", type = "string or nil", default = "" })
SILE.settings:declare({ parameter = "font.features", type = "string", default = "" })
SILE.settings:declare({ parameter = "font.variations", type = "string", default = "" })
SILE.settings:declare({ parameter = "font.hyphenchar", type = "string", default = "-" })

SILE.fontCache = {}

local _key = function (options)
   return table.concat({
      options.family,
      ("%g"):format(SILE.types.measurement(options.size):tonumber()),
      ("%d"):format(options.weight or 0),
      options.style,
      options.variant,
      options.features,
      options.variations,
      options.direction,
      options.filename,
   }, ";")
end

local font = {

   loadDefaults = function (options)
      if not options.family then
         options.family = SILE.settings:get("font.family")
      end
      if not options.size then
         options.size = SILE.settings:get("font.size")
      end
      if not options.weight then
         options.weight = SILE.settings:get("font.weight")
      end
      if not options.style then
         options.style = SILE.settings:get("font.style")
      end
      if not options.variant then
         options.variant = SILE.settings:get("font.variant")
      end
      if SILE.settings:get("font.filename") ~= "" then
         options.filename = SILE.settings:get("font.filename")
         options.family = ""
      end
      if not options.language then
         options.language = SILE.settings:get("document.language")
      end
      if not options.script then
         options.script = SILE.settings:get("font.script")
      end
      if not options.direction then
         options.direction = SILE.settings:get("font.direction")
         if not options.direction or options.direction == "" then
            options.direction = SILE.typesetter and SILE.typesetter.frame and SILE.typesetter.frame:writingDirection()
               or "LTR"
         end
      end
      if not options.features then
         options.features = SILE.settings:get("font.features")
      end
      if not options.variations then
         options.variations = SILE.settings:get("font.variations")
      end
      if not options.hyphenchar then
         options.hyphenchar = SILE.settings:get("font.hyphenchar")
      end
      return options
   end,

   cache = function (options, callback)
      local key = _key(options)
      if not SILE.fontCache[key] then
         SU.debug("fonts", "Looking for", key)
         local face = callback(options)
         SILE.fontCache[key] = face
      end
      local cached = SILE.fontCache[key]
      SILE.font.postLoadHook(cached)
      return cached
   end,

   finish = function ()
      for key, font in pairs(SILE.fontCache) do
         if font.tempfilename ~= font.filename then
            SU.debug("fonts", "Removing temporary file of", key, ":", font.tempfilename)
            os.remove(font.tempfilename)
         end
      end
   end,

   postLoadHook = function (face)
      local ot = require("core.opentype-parser")
      local font = ot.parseFont(face)
      if font.cpal then
         SILE.require("packages.color-fonts")
         if SILE.shaper._name ~= "harfbuzzWithColor" then
            SU.debug("color-fonts", "Switching to color font Shaper")
            SILE.typesetter:leaveHmode(true)
            lastshaper, SILE.shaper = SILE.shaper, SILE.shapers.harfbuzzWithColor()
         end
      end
   end,

   _key = _key,
}

return font

1	--- font
2	-- @module SILE.font
3	local icu = require("justenoughicu")	7✔
4
5	local lastshaper
6
7	SILE.registerCommand("font", function (options, content)	14✔
8	if SU.ast.hasContent(content) then	12✔
9	SILE.settings:pushState()	5✔
10	end
11	if options.filename then	6✔
12	SILE.settings:set("font.filename", options.filename)	×
13	end
14	if options.family then	6✔
15	SILE.settings:set("font.family", options.family)	1✔
16	SILE.settings:set("font.filename", "")	1✔
17	end
18	if options.size then	6✔
19	local size = SU.cast("measurement", options.size)	×
20	if not size then	×
21	SU.error("Couldn't parse font size " .. options.size)	×
22	end
23	SILE.settings:set("font.size", size:absolute())	×
24	end
25	if options.weight then	6✔
26	SILE.settings:set("font.weight", 0 + options.weight)	×
27	end
28	if options.style then	6✔
29	SILE.settings:set("font.style", options.style)	5✔
30	end
31	if options.variant then	6✔
32	SILE.settings:set("font.variant", options.variant)	×
33	end
34	if options.features then	6✔
35	SILE.settings:set("font.features", options.features)	×
36	end
37	if options.variations then	6✔
38	SILE.settings:set("font.variations", options.variations)	×
39	end
40	if options.direction then	6✔
41	SILE.settings:set("font.direction", options.direction)	×
42	end
43	if options.language then	6✔
44	if options.language ~= "und" and icu and icu.canonicalize_language then	×
45	local newlang = icu.canonicalize_language(options.language)	×
46	-- if newlang ~= options.language then
47	-- SU.warn("Language '"..options.language.."' not canonical, '"..newlang.."' will be used instead.")
48	-- end
49	options.language = newlang	×
50	end
51	SILE.settings:set("document.language", options.language)	×
52	fluent:set_locale(options.language)	×
53	SILE.languageSupport.loadLanguage(options.language)	×
54	end
55	if options.script then	6✔
56	SILE.settings:set("font.script", options.script)	×
57	elseif SILE.settings:get("document.language") then	12✔
58	local lang = SILE.languageSupport.languages[SILE.settings:get("document.language")]	12✔
59	if lang and lang.defaultScript then	6✔
60	SILE.settings:set("font.script", lang.defaultScript)	×
61	end
62	end
63	if options.hyphenchar then	6✔
64	-- must be in the form of, for example, "-" or "U+2010" or "0x2010" (Unicode hex codepoint)
65	SILE.settings:set("font.hyphenchar", SU.utf8charfromcodepoint(options.hyphenchar))	×
66	end
67
68	-- We must actually load the font here, because by the time we're inside
69	-- SILE.shaper.shapeToken, it's too late to respond appropriately to things
70	-- that the post-load hook might want to do.
71	SILE.font.cache(SILE.font.loadDefaults({}), SILE.shaper.getFace)	12✔
72
73	if SU.ast.hasContent(content) then	12✔
74	SILE.process(content)	5✔
75	SILE.settings:popState()	5✔
76	if SILE.shaper._name == "harfbuzzWithColor" and lastshaper then	5✔
77	SU.debug("color-fonts", "Switching from color fonts shaper back to previous shaper")	×
78	SILE.typesetter:leaveHmode(true)	×
79	lastshaper, SILE.shaper = nil, lastshaper	×
80	end
81	end
82	end, "Set current font family, size, weight, style, variant, script, direction and language", nil, true)	13✔
83
84	SILE.settings:declare({ parameter = "font.family", type = "string or nil", default = "Gentium Plus" })	7✔
85	SILE.settings:declare({ parameter = "font.size", type = "number or integer", default = 10 })	7✔
86	SILE.settings:declare({ parameter = "font.weight", type = "integer", default = 400 })	7✔
87	SILE.settings:declare({ parameter = "font.variant", type = "string", default = "normal" })	7✔
88	SILE.settings:declare({ parameter = "font.script", type = "string", default = "" })	7✔
89	SILE.settings:declare({ parameter = "font.style", type = "string", default = "" })	7✔
90	SILE.settings:declare({ parameter = "font.direction", type = "string", default = "" })	7✔
91	SILE.settings:declare({ parameter = "font.filename", type = "string or nil", default = "" })	7✔
92	SILE.settings:declare({ parameter = "font.features", type = "string", default = "" })	7✔
93	SILE.settings:declare({ parameter = "font.variations", type = "string", default = "" })	7✔
94	SILE.settings:declare({ parameter = "font.hyphenchar", type = "string", default = "-" })	7✔
95
96	SILE.fontCache = {}	7✔
97
98	local _key = function (options)
99	return table.concat({	2,162✔
100	options.family,	2,162✔
101	("%g"):format(SILE.types.measurement(options.size):tonumber()),	6,486✔
102	("%d"):format(options.weight or 0),	2,162✔
103	options.style,	2,162✔
104	options.variant,	2,162✔
105	options.features,	2,162✔
106	options.variations,	2,162✔
107	options.direction,	2,162✔
108	options.filename,	2,162✔
109	}, ";")	2,162✔
110	end
111
112	local font = {	7✔
113
114	loadDefaults = function (options)
115	if not options.family then	489✔
116	options.family = SILE.settings:get("font.family")	288✔
117	end
118	if not options.size then	489✔
119	options.size = SILE.settings:get("font.size")	288✔
120	end
121	if not options.weight then	489✔
122	options.weight = SILE.settings:get("font.weight")	298✔
123	end
124	if not options.style then	489✔
125	options.style = SILE.settings:get("font.style")	298✔
126	end
127	if not options.variant then	489✔
128	options.variant = SILE.settings:get("font.variant")	978✔
129	end
130	if SILE.settings:get("font.filename") ~= "" then	978✔
131	options.filename = SILE.settings:get("font.filename")	×
132	options.family = ""	×
133	end
134	if not options.language then	489✔
135	options.language = SILE.settings:get("document.language")	968✔
136	end
137	if not options.script then	489✔
138	options.script = SILE.settings:get("font.script")	978✔
139	end
140	if not options.direction then	489✔
141	options.direction = SILE.settings:get("font.direction")	978✔
142	if not options.direction or options.direction == "" then	489✔
143	options.direction = SILE.typesetter and SILE.typesetter.frame and SILE.typesetter.frame:writingDirection()	489✔
144	or "LTR"	489✔
145	end
146	end
147	if not options.features then	489✔
148	options.features = SILE.settings:get("font.features")	978✔
149	end
150	if not options.variations then	489✔
151	options.variations = SILE.settings:get("font.variations")	978✔
152	end
153	if not options.hyphenchar then	489✔
154	options.hyphenchar = SILE.settings:get("font.hyphenchar")	978✔
155	end
156	return options	489✔
157	end,
158
159	cache = function (options, callback)
160	local key = _key(options)	440✔
161	if not SILE.fontCache[key] then	440✔
162	SU.debug("fonts", "Looking for", key)	12✔
163	local face = callback(options)	12✔
164	SILE.fontCache[key] = face	12✔
165	end
166	local cached = SILE.fontCache[key]	440✔
167	SILE.font.postLoadHook(cached)	440✔
168	return cached	440✔
169	end,
170
171	finish = function ()
172	for key, font in pairs(SILE.fontCache) do	17✔
173	if font.tempfilename ~= font.filename then	12✔
174	SU.debug("fonts", "Removing temporary file of", key, ":", font.tempfilename)	×
175	os.remove(font.tempfilename)	×
176	end
177	end
178	end,
179
180	postLoadHook = function (face)
181	local ot = require("core.opentype-parser")	440✔
182	local font = ot.parseFont(face)	440✔
183	if font.cpal then	440✔
184	SILE.require("packages.color-fonts")	×
185	if SILE.shaper._name ~= "harfbuzzWithColor" then	×
186	SU.debug("color-fonts", "Switching to color font Shaper")	×
187	SILE.typesetter:leaveHmode(true)	×
188	lastshaper, SILE.shaper = SILE.shaper, SILE.shapers.harfbuzzWithColor()	×
189	end
190	end
191	end,
192
193	_key = _key,	7✔
194	}
195
196	return font	7✔

sile-typesetter / sile / 9322841962

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