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if not modules then modules = { } end modules ['supp-fil'] = {
version = 1.001,
comment = "companion to supp-fil.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[ldx--
<p>It's more convenient to manipulate filenames (paths) in
<l n='lua'/> than in <l n='tex'/>. These methods have counterparts
at the <l n='tex'/> side.</p>
--ldx]]--
local find, gsub, match = string.find, string.gsub, string.match
local ctxcatcodes = tex.ctxcatcodes
support = support or { }
environment = environment or { }
environment.outputfilename = environment.outputfilename or environment.jobname
function support.checkfilename(str) -- "/whatever..." "c:..." "http://..."
commands.chardef("kindoffile",boolean.tonumber(find(str,"^/") or find(str,"[%a]:")))
end
function support.thesanitizedfilename(str)
tex.write((gsub(str,"\\","/")))
end
function support.splitfilename(fullname)
local path, name, base, suffix, kind = '', fullname, fullname, '', 0
local p, n = match(fullname,"^(.+)/(.-)$")
if p and n then
path, name, base = p, n, n
end
local b, s = match(base,"^(.+)%.(.-)$")
if b and s then
name, suffix = b, s
end
if path == "" then
kind = 0
elseif path == '.' then
kind = 1
else
kind = 2
end
commands.def("splitofffull", fullname)
commands.def("splitoffpath", path)
commands.def("splitoffbase", base)
commands.def("splitoffname", name)
commands.def("splitofftype", suffix)
commands.chardef("splitoffkind", kind)
end
function support.splitfiletype(fullname)
local name, suffix = fullname, ''
local n, s = match(fullname,"^(.+)%.(.-)$")
if n and s then
name, suffix = n, s
end
commands.def("splitofffull", fullname)
commands.def("splitoffpath", "")
commands.def("splitoffname", name)
commands.def("splitofftype", suffix)
end
function support.doifparentfileelse(n)
commands.testcase(n==environment.jobname or n==environment.jobname..'.tex' or n==environment.outputfilename)
end
-- saves some .15 sec on 12 sec format generation
local lastexistingfile = ""
function support.doiffileexistelse(name)
if not name or name == "" then
lastexistingfile = ""
else
lastexistingfile = resolvers.findtexfile(name) or ""
end
return commands.testcase(lastexistingfile ~= "")
end
function support.lastexistingfile()
tex.sprint(ctxcatcodes,lastexistingfile)
end
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