1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
|
if not modules then modules = { } end modules ['lang-ini'] = {
version = 1.001,
comment = "companion to lang-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- needs a cleanup (share locals)
local utf = unicode.utf8
local utfbyte = utf.byte
local format = string.format
local concat = table.concat
local lpegmatch = lpeg.match
local trace_patterns = false trackers.register("languages.patterns", function(v) trace_patterns = v end)
languages = languages or {}
languages.version = 1.009
languages.hyphenation = languages.hyphenation or { }
languages.hyphenation.data = languages.hyphenation.data or { }
local langdata = languages.hyphenation.data
-- 002D : hyphen-minus (ascii)
-- 2010 : hyphen
-- 2011 : nonbreakable hyphen
-- 2013 : endash (compound hyphen)
--~ lang:hyphenation(string)
--~ string =lang:hyphenation()
--~ lang:clear_hyphenation()
-- we can consider hiding data (faster access too)
-- loading the 26 languages that we normally load in mkiv, the string based variant
-- takes .84 seconds (probably due to the sub's) while the lpeg variant takes .78
-- seconds
--
-- the following lpeg can probably be improved (it was one of the first I made)
local leftbrace = lpeg.P("{")
local rightbrace = lpeg.P("}")
local spaces = lpeg.S(" \r\n\t\f")
local spacing = spaces^0
local validchar = 1-(spaces+rightbrace+leftbrace)
local validword = validchar^1
local content = spacing * leftbrace * spacing * lpeg.C((spacing * validword)^0) * spacing * rightbrace * lpeg.P(true)
local command = lpeg.P("\\patterns")
local parser = (1-command)^0 * command * content
local function filterpatterns(filename)
if file.extname(filename) == "rpl" then
return io.loaddata(resolvers.find_file(filename)) or ""
else
return lpegmatch(parser,io.loaddata(resolvers.find_file(filename)) or "")
end
end
local command = lpeg.P("\\hyphenation")
local parser = (1-command)^0 * command * content
local function filterexceptions(filename)
if file.extname(filename) == "rhl" then
return io.loaddata(resolvers.find_file(filename)) or ""
else
return lpegmatch(parser,io.loaddata(resolvers.find_file(filename)) or {}) -- "" ?
end
end
local function record(tag)
local data = langdata[tag]
if not data then
data = lang.new()
langdata[tag] = data or 0
end
return data
end
languages.hyphenation.record = record
function languages.hyphenation.define(tag)
local data = record(tag)
return data:id()
end
function languages.hyphenation.number(tag)
local d = langdata[tag]
return (d and d:id()) or 0
end
lang.exceptions = lang.hyphenation
local function loadthem(tag, filename, filter, target)
statistics.starttiming(languages)
local data = record(tag)
local fullname = (filename and filename ~= "" and resolvers.find_file(filename)) or ""
local ok = fullname ~= ""
if ok then
if trace_patterns then
logs.report("languages","filtering %s for language '%s' from '%s'",target,tag,fullname)
end
lang[target](data,filterpatterns(fullname))
else
if trace_patterns then
logs.report("languages","no %s for language '%s' in '%s'",target,tag,filename or "?")
end
lang[target](data,"")
end
langdata[tag] = data
statistics.stoptiming(languages)
return ok
end
function languages.hyphenation.loadpatterns(tag, patterns)
return loadthem(tag, patterns, filterpatterns, "patterns")
end
function languages.hyphenation.loadexceptions(tag, exceptions)
return loadthem(tag, patterns, filterexceptions, "exceptions")
end
function languages.hyphenation.exceptions(tag, ...)
local data = record(tag)
data:hyphenation(...)
end
function languages.hyphenation.hyphenate(tag, str)
return lang.hyphenate(record(tag), str)
end
function languages.hyphenation.lefthyphenmin(tag, value)
local data = record(tag)
if value then data:lefthyphenmin(value) end
return data:lefthyphenmin()
end
function languages.hyphenation.righthyphenmin(tag, value)
local data = record(tag)
if value then data:righthyphenmin(value) end
return data:righthyphenmin()
end
function languages.hyphenation.n()
return table.count(langdata)
end
languages.registered = languages.registered or { }
languages.associated = languages.associated or { }
languages.numbers = languages.numbers or { }
storage.register("languages/registered",languages.registered,"languages.registered")
storage.register("languages/associated",languages.associated,"languages.associated")
local numbers = languages.numbers
local registered = languages.registered
local associated = languages.associated
-- we can speed this one up with locals if needed
local function tolang(what)
local kind = type(what)
if kind == "number" then
local w = what >= 0 and what <= 0x7FFF and numbers[what]
return (w and langdata[w]) or 0
elseif kind == "string" then
return langdata[what]
else
return what
end
end
function languages.setup(what,settings)
what = languages.tolang(what or tex.language)
local lefthyphen = settings.lefthyphen
local righthyphen = settings.righthyphen
lefthyphen = lefthyphen ~= "" and lefthyphen or nil
righthyphen = righthyphen ~= "" and righthyphen or nil
lefthyphen = lefthyphen and utfbyte(lefthyphen) or 0
righthyphen = righthyphen and utfbyte(righthyphen) or 0
lang.posthyphenchar(what,lefthyphen)
lang.prehyphenchar (what,righthyphen)
lang.postexhyphenchar(what,lefthyphen)
lang.preexhyphenchar (what,righthyphen)
end
function languages.prehyphenchar(what)
return lang.prehyphenchar(tolang(what))
end
function languages.posthyphenchar(what)
return lang.posthyphenchar(tolang(what))
end
languages.tolang = tolang
function languages.register(tag,parent,patterns,exceptions)
parent = parent or tag
registered[tag] = {
parent = parent,
patterns = patterns or format("lang-%s.pat",parent),
exceptions = exceptions or format("lang-%s.hyp",parent),
loaded = false,
number = 0,
}
end
function languages.associate(tag,script,language)
associated[tag] = { script, language }
end
function languages.association(tag)
if type(tag) == "number" then
tag = numbers[tag]
end
local lat = tag and associated[tag]
if lat then
return lat[1], lat[2]
else
return nil, nil
end
end
function languages.loadable(tag)
local l = registered[tag]
if l and l.patterns and resolvers.find_file(patterns) then
return true
else
return false
end
end
languages.share = false -- we don't share language numbers
function languages.enable(tags)
-- beware: we cannot set tex.language, but need tex.normallanguage
for i=1,#tags do
local tag = tags[i]
local l = registered[tag]
if l and l ~= "" then
if not l.loaded then
local tag = l.parent
local number = languages.hyphenation.number(tag)
if languages.share and number > 0 then
l.number = number
else
-- we assume the same filenames
l.number = languages.hyphenation.define(tag)
languages.hyphenation.loadpatterns(tag,l.patterns)
languages.hyphenation.loadexceptions(tag,l.exceptions)
numbers[l.number] = tag
end
l.loaded = true
if trace_patterns then
logs.report("languages","assigning number %s",l.number)
end
end
if l.number > 0 then
return l.number
end
end
end
return 0
end
-- e['implementer']= 'imple{m}{-}{-}menter'
-- e['manual'] = 'man{}{}{}'
-- e['as'] = 'a-s'
-- e['user-friendly'] = 'user=friend-ly'
-- e['exceptionally-friendly'] = 'excep-tionally=friend-ly'
function languages.hyphenation.loadwords(tag, filename)
local id = languages.hyphenation.number(tag)
if id > 0 then
local l = lang.new(id) or 0
statistics.starttiming(languages)
local data = io.loaddata(filename) or ""
l:hyphenation(data)
statistics.stoptiming(languages)
end
end
languages.hyphenation.define ("zerolanguage")
languages.hyphenation.loadpatterns ("zerolanguage") -- else bug
languages.hyphenation.loadexceptions("zerolanguage") -- else bug
languages.logger = languages.logger or { }
function languages.logger.report()
local result = { }
local sorted = table.sortedkeys(registered)
for i=1,#sorted do
local tag = sorted[i]
local l = registered[tag]
if l.loaded then
local p = (l.patterns and "pat") or '-'
local e = (l.exceptions and "exc") or '-'
result[#result+1] = format("%s:%s:%s:%s:%s", tag, l.parent, p, e, l.number)
end
end
return (#result > 0 and concat(result," ")) or "none"
end
-- must happen at the tex end
languages.associate('en','latn','eng')
languages.associate('uk','latn','eng')
languages.associate('nl','latn','nld')
languages.associate('de','latn','deu')
languages.associate('fr','latn','fra')
statistics.register("loaded patterns", function()
local result = languages.logger.report()
if result ~= "none" then
return result
end
end)
statistics.register("language load time", function()
return statistics.elapsedseconds(languages, format(", n=%s",languages.hyphenation.n()))
end)
|