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if not modules then modules = { } end modules ['bibl-bib'] = {
version = 1.001,
comment = "this module is the basis for the lxml-* ones",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
bibtex = bibtex or { }
local bibtex = bibtex
bibtex.hacks = bibtex.hacks or { }
local hacks = bibtex.hacks
local match, gmatch, format, concat, sort = string.match, string.gmatch, string.format, table.concat, table.sort
local variables, constants = interfaces.variables, interfaces.constants
local trace_bibtex = false trackers.register("publications.bibtex", function(v) trace_bibtex = v end)
local report_tex = logs.reporter("publications","tex")
local context, structures = context, structures
local references = structures.references
local sections = structures.sections
local list, done, alldone, used, registered, ordered = { }, { }, { }, { }, { }, { }
local mode = 0
local template = utilities.strings.striplong([[
\citation{*}
\bibstyle{cont-%s}
\bibdata{%s}
]])
function hacks.process(settings)
local style = settings.style or ""
local database = settings.database or ""
local jobname = tex.jobname
if database ~= "" then
interfaces.showmessage("publications",3)
io.savedata(file.addsuffix(jobname,"aux"),format(template,style,database))
if trace_bibtex then
report_tex("processing bibtex file '%s'",jobname)
end
os.execute(format("bibtex %s",jobname))
-- purge 'm
end
end
function hacks.register(str)
if trace_bibtex then
report_tex("registering bibtex entry '%s'",str)
end
registered[#registered+1] = str
ordered[str] = #registered
end
function hacks.nofregistered()
return #registered
end
function hacks.reset(m)
mode, list, done = m, { }, { }
end
function hacks.add(str,listindex)
if not str or mode == 0 then
-- skip
elseif mode == 1 then
-- all locals but no duplicates
local sc = sections.currentid()
if done[str] ~= sc then
done[str], alldone[str] = sc, true
list[#list+1] = { str, listindex }
end
elseif mode == 2 then
-- all locals but no preceding
local sc = sections.currentid()
if not alldone[str] and done[str] ~= sc then
done[str], alldone[str] = sc, true
list[#list+1] = { str, listindex }
end
end
end
local function compare(a,b) -- quite some checking for non-nil
local aa, bb = a and a[1], b and b[1]
if aa and bb then
local oa, ob = ordered[aa], ordered[bb]
return oa and ob and oa < ob
end
return false
end
function hacks.flush(sortvariant)
if sortvariant == "" or sortvariant == variables.cite or sortvariant == "default" then
-- order is cite order i.e. same as list
else
sort(list,compare)
end
for i=1,#list do
context.doprocessbibtexentry(list[i][1])
end
end
function hacks.filterall()
for i=1,#registered do
list[i] = { registered[i], i }
end
end
function hacks.registerplaced(str)
used[str] = true
end
function hacks.doifalreadyplaced(str)
commands.testcase(used[str])
end
-- we ask for <n>:tag but when we can't find it we go back
-- to look for previous definitions, and when not found again
-- we look forward
local function compare(a,b)
local aa, bb = a and a[3], b and b[3]
return aa and bb and aa < bb
end
function hacks.resolve(prefix,block,reference) -- maybe already feed it split
-- needs checking (the prefix in relation to components)
local subset = references.collected[prefix or ""] or references.collected[""]
if subset then
local result, nofresult, done = { }, 0, { }
block = tonumber(block)
for rest in gmatch(reference,"[^, ]+") do
local blk, tag, found = block, nil, nil
if block then
tag = blk .. ":" .. rest
found = subset[tag]
if not found then
for i=block-1,1,-1 do
tag = i .. ":" .. rest
found = subset[tag]
if found then
blk = i
break
end
end
end
end
if not found then
blk = "*"
tag = blk .. ":" .. rest
found = subset[tag]
end
if found then
local current = tonumber(found.entries and found.entries.text) -- tonumber needed
if current and not done[current] then
nofresult = nofresult + 1
result[nofresult] = { blk, rest, current }
done[current] = true
end
end
end
-- todo: ranges so the interface will change
sort(result,compare)
local first, last, firsti, lasti, firstr, lastr
local collected, nofcollected = { }, 0
for i=1,nofresult do
local r = result[i]
local current = r[3]
if not first then
first, last, firsti, lasti, firstr, lastr = current, current, i, i, r, r
elseif current == last + 1 then
last, lasti, lastr = current, i, r
else
if last > first + 1 then
nofcollected = nofcollected + 1
collected[nofcollected] = { firstr[1], firstr[2], lastr[1], lastr[2] }
else
nofcollected = nofcollected + 1
collected[nofcollected] = { firstr[1], firstr[2] }
if last > first then
nofcollected = nofcollected + 1
collected[nofcollected] = { lastr[1], lastr[2] }
end
end
first, last, firsti, lasti, firstr, lastr = current, current, i, i, r, r
end
end
if first and last then
if last > first + 1 then
nofcollected = nofcollected + 1
collected[nofcollected] = { firstr[1], firstr[2], lastr[1], lastr[2] }
else
nofcollected = nofcollected + 1
collected[nofcollected] = { firstr[1], firstr[2] }
if last > first then
nofcollected = nofcollected + 1
collected[nofcollected] = { lastr[1], lastr[2] }
end
end
end
if nofcollected > 0 then
for i=1,nofcollected do
local c = collected[i]
if c[3] then
context.dowithbibtexnumrefrange(#collected,i,prefix,c[1],c[2],c[3],c[4])
else
context.dowithbibtexnumref(#collected,i,prefix,c[1],c[2])
end
end
else
context.nobibtexnumref("error 1")
end
else
context.nobibtexnumref("error 2")
end
end
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