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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 context = context
local implement = interfaces.implement
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
-- We don't store labels at the \LUA\ end because we want to obey grouping. Otherwise we
-- would need to start using tables that relate to the group level.
local contextsprint = context.sprint
local f_setlabeltextpair = formatters["\\setlabeltextpair{%s}{%s}{%s}{%s}{%s}"]
local f_key_key = formatters["\\v!%s:\\v!%s"]
local f_key_raw = formatters["\\v!%s:%s"]
local f_raw_key = formatters["%s:\\v!%s"]
local f_raw_raw = formatters["%s:%s"]
local f_key = formatters["\\v!%s"]
local f_raw = formatters["%s"]
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,f_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,f_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
-- local function definelanguagelabels(data,class,tag,rawtag)
-- local setlabeltextopair = context.setlabeltextpair
-- context.pushcatcodes("prt")
-- for language, text in next, data.labels do
-- if text == "" then
-- -- skip
-- elseif type(text) == "table" then
-- setlabeltextopair(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
-- setlabeltextopair(class,language,tag,text,"")
-- if trace_labels then
-- report_labels("language %a, defining label %a as %a",language,rawtag,text)
-- end
-- end
-- end
-- context.popcatcodes()
-- 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
tag = variables[tag] or tag
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,f_key_key(first,second),tag)
else
definelanguagelabels(data,class,f_key_raw(first,second),tag)
end
elseif rawget(variables,second) then
definelanguagelabels(data,class,f_raw_key(first,second),tag)
else
definelanguagelabels(data,class,f_raw_raw(first,second),tag)
end
elseif rawget(variables,rawtag) then
definelanguagelabels(data,class,f_key(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
interfaces.implement {
name = "definelabels",
actions = labels.define,
arguments = { "string", "string", "boolean" }
}
-- function commands.setstrippedtextprefix(str)
-- context(string.strip(str))
-- end
-- list : { "a", "b", "c" }
-- separator : ", "
-- last : " and "
-- text : "a,b,c"
-- separators : "{, },{ and }"
local function 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
implement {
name = "concatcommalist",
actions = concatcommalist,
arguments = {
{
{ "text" },
{ "separators" },
{ "separator" },
{ "last" },
}
}
}
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