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|
if not modules then modules = { } end modules ['mtx-ctan'] = {
version = 1.00,
comment = "companion to mtxrun.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- This is just an experiment. Some day I want to be able to install fonts this way
-- but maybe fetching tex live packages is also an option (I need to check if there
-- is an api for that ... in wintertime). Normally fonts come from the web but I had
-- to fetch newcm from ctan, so ...
--
-- mtxrun --script ctan --packages --pattern=computermodern
-- http://www.ctan.org/json/2.0/packages
-- http://www.ctan.org/json/2.0/pkg/name
-- http://www.ctan.org/json/2.0/topics : key details
-- http://www.ctan.org/json/2.0/topic/name : key details
-- http://www.ctan.org/json/2.0/topic/name?ref=true : key details packages
local lower, find, gsub = string.lower, string.find, string.gsub
local write_nl = (logs and logs.writer) or (texio and texio.write_nl) or print
local xmlconvert, xmltext, xmlattr, xmlcollected = xml.convert, xml.text, xml.attribute, xml.collected
local helpinfo = [[
<?xml version="1.0"?>
<application>
<metadata>
<entry name="name">mtx-ctan</entry>
<entry name="detail">Dealing with CTAN</entry>
<entry name="version">1.00</entry>
</metadata>
<flags>
<category name="basic">
<subcategory>
<flag name="packages"><short>list available packages [--field=key|name|caption]</short></flag>
<flag name="topics"><short>list available topics [--field=key|name|details]</short></flag>
<flag name="details"><short>show details about package</short></flag>
<flag name="pattern" value="string"><short>use this pattern, otherwise first argument</short></flag>
</subcategory>
</category>
</flags>
</application>
]]
local application = logs.application {
name = "mtx-ctan",
banner = "Dealing with CTAN",
helpinfo = helpinfo,
}
local report = application.report
scripts = scripts or { }
scripts.ctan = scripts.ctan or { }
local okay, json = pcall(require,"util-jsn")
local okay, curl = pcall(require,"libs-imp-curl")
pcall(require,"char-ini")
local jsontolua = json and json.tolua
local shaped = characters and characters.shaped or lower
-- local ignore = {
-- "latex",
-- "plain",
-- "xetex",
-- }
-- what is the url to fetch a zip
-- We cannot use the socket library because we don't compile that massive amount of
-- ssl code into lua(meta)tex. Maybe some day one fo these small embedded libraries
-- makes sense but there are so many changes in all that security stuff that it
-- defeats long term stability of the ecosystem anyway ... just like some of my old
-- devices suddenly are no longer accessible with modern browsers I expect it to
-- happen everywhere. I'm not sure why ctan can't support http because I see no
-- added value in the 's' here.
local ctanurl = "https://www.ctan.org/" .. (json and "json" or "xml") .. "/2.0/"
local fetched = curl and
function(str)
local data, message = curl.fetch {
url = ctanurl .. str,
sslverifyhost = false,
sslverifypeer = false,
}
if not data then
report("some error: %s",message)
end
return data
end
or
function(str)
-- So, no redirect to http, which means that we cannot use the built in socket
-- library. What if the client is happy with http?
local data = os.resultof("curl -sS " .. ctanurl .. str)
-- print(data)
return data
end
-- for j=1,#ignore do
-- if find(str,ignore[j]) then
-- return false
-- end
-- end
local function strfound(pattern,str)
if not pattern then
return true
else
local str = lower(shaped(str))
if find(str,pattern) then
return true
else
str = gsub(str,"[^a-zA-Z0-9]","")
if find(str,pattern) then
return true
else
return false
end
end
end
end
local function showresult(found)
if #found > 2 then
utilities.formatters.formatcolumns(found)
report("")
for k=1,#found do
report(found[k])
end
report("")
end
end
local function checkedpattern(pattern)
if pattern then
pattern = string.topattern(pattern,true)
return lower(shaped(pattern))
end
end
local validdata = json and
function(data)
if data then
data = jsontolua(data)
if type(data) == "table" then
return data
else
report("unable to handle this json data")
end
else
report("unable to fetch packages")
end
end
or
function(data)
if data then
data = xmlconvert(data)
if data.error then
report("unable to handle this json data")
else
return data
end
else
report("unable to fetch packages")
end
end
scripts.ctan.details = json and
function(name)
if name then
local data = validdata(fetched("pkg/" .. name))
if data then
report("")
-- report("key : %s",data.key or "-")
report("name : %s",data.name or "-")
report("caption : %s",data.caption or "-")
report("path : %s",data.ctan and data.ctan.path or "-")
report("")
end
end
end
or
function (name)
if name then
local data = validdata(fetched("pkg/" .. name))
report("")
-- report("key : %s",data.key or "-")
report("name : %s",xmltext(data,"/entry/name"))
report("caption : %s",xmltext(data,"/entry/caption"))
report("path : %s",xmlattr(data,"/entry/ctan","path"))
report("")
end
end
scripts.ctan.packages = json and
function(pattern,field)
local data = validdata(fetched("packages"))
if data then
local found = {
{ "key", "name", "caption" },
{ "", "", "" },
}
pattern = checkedpattern(pattern)
for i=1,#data do
local entry = data[i]
local key = entry.key
local name = entry.name
local caption = entry.caption
local where
if field == "name" then
where = name
elseif field == "caption" then
where = caption
elseif field == "key" then
where = key
end
if where then
if strfound(pattern,where) then
found[#found+1] = { key, name, caption }
end
else
if strfound(pattern,name) or strfound(pattern,caption) then
found[#found+1] = { key, name, caption }
end
end
end
showresult(found)
end
end
or
function(pattern)
local data = validdata(fetched("packages"))
if data then
local found = {
{ "key", "name", "caption" },
{ "", "", "" },
}
pattern = checkedpattern(pattern)
for c in xmlcollected(data,"/packages/package") do
local at = c.at
if strfound(pattern,at.caption) then
found[#found+1] = { at.key, at.name, at.caption }
end
end
showresult(found)
end
end
scripts.ctan.topics = json and
function (pattern)
local data = validdata(fetched("topics"))
if data then
local found = {
{ "key", "details" },
{ "", "" },
}
pattern = checkedpattern(pattern)
for i=1,#data do
-- inconsistency between json and xml
local entry = data[i]
local key = entry.key
local name = entry.name
local details = entry.details
local where
if field == "name" then
where = name or key
elseif field == "details" then
where = details
elseif field == "key" then
where = key or name
end
if where then
if strfound(pattern,where) then
found[#found+1] = { key or name, details }
end
else
if strfound(pattern,key or name) or strfound(pattern,details) then
found[#found+1] = { key or name, details }
end
end
end
showresult(found)
end
end
or
function(pattern)
local data = validdata(fetched("topics"))
if data then
local found = {
{ "name", "details" },
{ "", "" },
}
pattern = checkedpattern(pattern)
for c in xmlcollected(data,"/topics/topic") do
local at = c.at
if strfound(pattern,at.caption) then
found[#found+1] = { at.key or at.name, at.details } -- inconsistency between json and xml
end
end
showresult(found)
end
end
local function whatever()
report("")
report("using %s interface", json and "json" or "xml")
report("using curl %s", curl and "library" or "binary")
report("")
end
-- scripts.ctan.packages(environment.argument("pattern") or environment.files[1])
-- scripts.ctan.packages("font")
-- scripts.ctan.details("tex")
-- scripts.ctan.details("ipaex")
-- scripts.ctan.packages("Półtawskiego")
-- scripts.ctan.packages("Poltawskiego")
-- scripts.ctan.topics("font")
-- scripts.ctan.topics()
if environment.argument("packages") then
whatever()
scripts.ctan.packages(environment.argument("pattern") or environment.files[1], environment.argument("field"))
elseif environment.argument("topics") then
whatever()
scripts.ctan.topics(environment.argument("pattern") or environment.files[1])
elseif environment.argument("details") then
whatever()
scripts.ctan.details(environment.files[1])
elseif environment.argument("exporthelp") then
application.export(environment.argument("exporthelp"),environment.files[1])
else
application.help()
end
|