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XForms, the TeX interface

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This commit is contained in:
Marcel Krüger 2020-06-30 11:48:46 +02:00
parent efedcba3e1
commit 4c76251d2e
1 changed files with 54 additions and 17 deletions
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71
luametalatex-back-pdf.lua
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@ -53,23 +53,6 @@ token.luacmd("shipout", function()
token.scan_token() token.scan_token()
end, 'force', 'protected') end, 'force', 'protected')
local savedbox = require'luametalatex-pdf-savedbox'
local savedbox_save = savedbox.save
function tex.saveboxresource(n, attr, resources, immediate, type, margin, pfile)
if not node.type(n) then
n = tonumber(n)
if not n then
error[[Invalid argument to saveboxresource]]
end
token.put_next(token.create'box', token.new(n, token.command_id'char_given'))
n = token.scan_list()
end
margin = margin or tex.sp'1bp' -- FIXME: default margin variable
return savedbox_save(pfile or get_pfile(), n, attr, resources, immediate, type, margin, fontdirs, usedglyphs)
end
tex.useboxresource = savedbox.use
-- TODO: savedbox TeX interface
local infodir = "" local infodir = ""
local namesdir = "" local namesdir = ""
local catalogdir = "" local catalogdir = ""
@ -748,3 +731,57 @@ end, "protected", "value")
token.luacmd("lastsavedimageresourcepages", function() token.luacmd("lastsavedimageresourcepages", function()
return integer_code, lastimagepages return integer_code, lastimagepages
end, "protected", "value") end, "protected", "value")
local savedbox = require'luametalatex-pdf-savedbox'
local savedbox_save = savedbox.save
function tex.saveboxresource(n, attr, resources, immediate, type, margin, pfile)
if not node.type(n) then
n = tonumber(n)
if not n then
error[[Invalid argument to saveboxresource]]
end
token.put_next(token.create'box', token.new(n, token.command_id'char_given'))
n = token.scan_list()
end
margin = margin or tex.sp'1bp' -- FIXME: default margin variable
return savedbox_save(pfile or get_pfile(), n, attr, resources, immediate, type, margin, fontdirs, usedglyphs)
end
tex.useboxresource = savedbox.use
local lastbox = -1
token.luacmd("saveboxresource", function(imm)
local type
if token.scan_keyword'type' then
texio.write_nl('XForm type attribute ignored')
type = token.scan_int()
end
local attr = token.scan_keyword'attr' and token.scan_string() or nil
local resources = token.scan_keyword'resources' and token.scan_string() or nil
local margin = token.scan_keyword'margin' and token.scan_int() or nil -- Why not a dimension?
local box = token.scan_int()
local index = tex.saveboxresource(box, attr, resources, imm == 'immediate', type, margin)
lastbox = index
end, "protected")
token.luacmd("useboxresource", function()
local width, height, depth
while true do
if token.scan_keyword'width' then
width = token.scan_dimen()
elseif token.scan_keyword'height' then
height = token.scan_dimen()
elseif token.scan_keyword'depth' then
depth = token.scan_dimen()
else
break
end
end
local index = token.scan_int()
node.write((tex.useboxresource(index, width, height, depth)))
end, "protected")
token.luacmd("lastsavedboxresourceindex", function()
return integer_code, lastbox
end, "protected", "value")