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if not modules then modules = { } end modules ['lang-lab'] = {
version = 1.001,
comment = "companion to lang-lab.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local format, find = string.format, string.find
local next, rawget, type = next, rawget, type
local lpegmatch = lpeg.match
local formatters = string.formatters
local prtcatcodes = catcodes.numbers.prtcatcodes -- todo: use different method
local trace_labels = false trackers.register("languages.labels", function(v) trace_labels = v end)
local report_labels = logs.reporter("languages","labels")
languages.labels = languages.labels or { }
local labels = languages.labels
local variables = interfaces.variables
local settings_to_array = utilities.parsers.settings_to_array
local splitter = lpeg.splitat(":")
local function split(tag)
return lpegmatch(splitter,tag)
end
labels.split = split
local contextsprint = context.sprint
local function definelanguagelabels(data,class,tag,rawtag)
for language, text in next, data.labels do
if text == "" then
-- skip
elseif type(text) == "table" then
contextsprint(prtcatcodes,"\\setlabeltextpair{",class,"}{",language,"}{",tag,"}{",text[1],"}{",text[2],"}")
if trace_labels then
report_labels("language %a, defining label %a as %a and %a",language,rawtag,text[1],text[2])
end
else
contextsprint(prtcatcodes,"\\setlabeltextpair{",class,"}{",language,"}{",tag,"}{",text,"}{}")
if trace_labels then
report_labels("language %a, defining label %a as %a",language,rawtag,text)
end
end
end
end
function labels.define(class,name,prefixed)
local list = languages.data.labels[name]
if list then
report_labels("defining label set %a",name)
for tag, data in next, list do
if data.hidden then
-- skip
elseif prefixed then
local first, second = lpegmatch(splitter,tag)
if second then
if rawget(variables,first) then
if rawget(variables,second) then
definelanguagelabels(data,class,formatters["\\v!%s:\\v!%s"](first,second),tag)
else
definelanguagelabels(data,class,formatters["\\v!%s:%s"](first,second),tag)
end
elseif rawget(variables,second) then
definelanguagelabels(data,class,formatters["%s:\\v!%s"](first,second),tag)
else
definelanguagelabels(data,class,formatters["%s:%s"](first,second),tag)
end
elseif rawget(variables,rawtag) then
definelanguagelabels(data,class,formatters["\\v!%s"](tag),tag)
else
definelanguagelabels(data,class,tag,tag)
end
else
definelanguagelabels(data,class,tag,tag)
end
end
else
report_labels("unknown label set %a",name)
end
end
-- function labels.check()
-- for category, list in next, languages.data.labels do
-- for tag, specification in next, list do
-- for language, text in next, specification.labels do
-- if type(text) == "string" and find(text,",") then
-- report_labels("warning: label with comma found, category %a, language %a, tag %a, text %a",
-- category, language, tag, text)
-- end
-- end
-- end
-- end
-- end
--
-- labels.check()
-- interface
commands.definelabels = labels.define
-- function commands.setstrippedtextprefix(str)
-- context(string.strip(str))
-- end
-- list : { "a", "b", "c" }
-- separator : ", "
-- last : " and "
-- text : "a,b,c"
-- separators : "{, },{ and }"
function commands.concatcommalist(settings) -- it's too easy to forget that this one is there
local list = settings.list or settings_to_array(settings.text or "")
local size = #list
local command = settings.command and context[settings.command] or context
if size > 1 then
local separator, last = " ", " "
if settings.separators then
local set = settings_to_array(settings.separators)
separator = set[1] or settings.separator or separator
last = set[2] or settings.last or last
else
separator = settings.separator or separator
last = settings.last or last
end
command(list[1])
for i=2,size-1 do
context(separator)
command(list[i])
end
context(last)
end
if size > 0 then
command(list[size])
end
end
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