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-- filename : core-reg.lua
-- comment : companion to core-reg.tex
-- author : Hans Hagen, PRAGMA-ADE, Hasselt NL
-- copyright: PRAGMA ADE / ConTeXt Development Team
-- license : see context related readme files
if not versions then versions = { } end versions['core-reg'] = 1.001
if not jobs then jobs = { } end
if not job then jobs['main'] = { } end job = jobs['main']
if not job.registers then job.registers = { } end
function job.defineregister(id)
if not job.registers[id] then
job.registers[id] = { }
end
end
-- {'e','3','','test+test+test','2--0-0-0-0-0-0-0--1','1'}
-- load index (we could rease the original entry afterwards, freeing memory)
-- index sorting
sorters = sorters or { }
sorters.index = sorters.index or { }
sorters.index.data = sorters.index.data or { }
do
function sorters.index.compare(a,b)
local result = 0
for i=1,4 do
if result == 0 then
result = sorters.comparers.basic(a,b,i)
else
return result
end
end
if a[1] ~= 's' then -- e/f/t
local page_a, page_b = a[3], b[3]
if page_a < page_b then
return -1
elseif page_a > page_b then
return 1
end
end
return 0
end
function sorters.index.prepare(data)
sorters.prepare(data,sorters.splitters.utf,4)
end
function sorters.index.sort(data)
sorters.sort(data,sorters.index.compare)
end
function sorters.index.unique(data)
sorters.unique(data)
end
function sorters.index.cleanup(data)
sorters.cleanup(data)
end
function sorters.index.finalize(data)
local split = { }
for k,v in ipairs(data) do
local entry, tag = v[2][1][3][1], ""
local se = sorters.entries[sorters.language]
if se and se[entry] then
if type(se[entry]) == "number" then
entry = se[entry]
end
tag = se[entry]
else
entry = 0
tag = "unknown"
end
split[entry] = split[entry] or { tag = tag, data = { } }
split[entry].data[#split[entry].data+1] = v
end
return split
end
-- \registerpage{index}{,}{6}{2--0-0-0-0-0-0-0--1}{1}
-- for the moment we use the old structure, some day mkiv code
-- will be different: more structure, less mess
local template = {
page = "\\registerpage{%s}{%s}{%s}{%s}{%s}",
see = "\\registersee{%s}{%s}{%s}{%s}",
letter = "\\registerentry{%s}{%s}",
entry = {
"\\registerentrya{%s}{%s}",
"\\registerentryb{%s}{%s}",
"\\registerentryc{%s}{%s}",
"\\registerentryd{%s}{%s}",
},
}
function sorters.index.flush(sorted,class,flush)
flush = flush or print
class = class or 'index'
for k,v in ipairs(table.sortedkeys(sorted)) do
local s = sorted[v]
flush(template.letter:format(class,s.tag))
local done = { false, false, false }
for kk,vv in ipairs(s.data) do
if vv[2][1] then
local e = { false, false, false, false }
for i=1,4,1 do
if vv[2][i] then
e[i] = vv[2][i][1]
end
if e[i] ~= done[i] then
if e[i] and e[i] ~= "" then
done[i] = e[i]
flush(template.entry[i]:format(class,e[i]))
else
done[i] = false
end
end
end
if vv[1] == 'e' then
-- format reference pagespec realpage
flush(template.page:format(class,",",vv[4],vv[5],vv[3]))
elseif vv[1] == 's' then
flush(template.see:format(class,",",vv[5],vv[3]))
end
end
end
end
end
function sorters.index.process(data)
return sorters.process('index',data)
end
end
-- { { entry, key }, { entry, key }, { entry, key }, { entry, key } }, kind, realpage|see, reference, pagespec
function job.loadregister(class)
if job.registers[class] then
if not sorters.index.data[class] then
sorters.index.data[class] = {
language = 'en',
entries = { },
flush = function(s) tex.sprint(tex.ctxcatcodes,s) end,
sorted = false,
class = class
}
local entries = sorters.index.data[class].entries
for k,v in ipairs(job.registers[class]) do
if v[1] == 'l' then -- language
sorters.index.data[class].language = v[2]
else
local key, entry = v[3], v[4]
if type(entry) == 'string' then
entry = entry:splitchr('+')
end
if type(key) == 'string' then
key = key:splitchr('+')
end
entries[#entries+1] = {
v[1], -- kind (e, f, t, s)
{
{ entry[1] or "", key[1] or "" },
{ entry[2] or "", key[2] or "" },
{ entry[3] or "", key[3] or "" },
{ entry[4] or "", key[4] or "" }
},
v[6], -- realpage or seeword (check see)
v[2], -- reference
v[5], -- pagespec
}
end
end
end
-- maybe we should also save the register result stream
sorters.index.process(sorters.index.data[class])
end
end
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