1if not modules then modules = { } end modules ['lpdf-nod'] = { 2 version = 1.001, 3 comment = "companion to lpdf-ini.mkiv", 4 author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", 5 copyright = "PRAGMA ADE / ConTeXt Development Team", 6 license = "see context related readme files" 7} 8 9local nodecodes = nodes.nodecodes 10local whatsitcodes = nodes.whatsitcodes 11 12local nodeinjections = backends.nodeinjections 13 14local nuts = nodes.nuts 15 16local setfield = nuts.setfield 17local setdata = nuts.setdata 18 19local copy_node = nuts.copy 20local new_node = nuts.new 21 22local nodepool = nuts.pool 23local register = nodepool.register 24 25local whatsit_code = nodecodes.whatsit 26 27local savewhatsit_code = whatsitcodes.save 28local restorewhatsit_code = whatsitcodes.restore 29local setmatrixwhatsit_code = whatsitcodes.setmatrix 30local literalwhatsit_code = whatsitcodes.literal 31 32local literalvalues = nodes.literalvalues 33local originliteral_code = literalvalues.origin 34local pageliteral_code = literalvalues.page 35local directliteral_code = literalvalues.direct 36local rawliteral_code = literalvalues.raw 37 38local tomatrix = drivers.helpers.tomatrix 39 40local originliteralnode = register(new_node(whatsit_code, literalwhatsit_code)) setfield(originliteralnode,"mode",originliteral_code) 41local pageliteralnode = register(new_node(whatsit_code, literalwhatsit_code)) setfield(pageliteralnode, "mode",pageliteral_code) 42local directliteralnode = register(new_node(whatsit_code, literalwhatsit_code)) setfield(directliteralnode,"mode",directliteral_code) 43local rawliteralnode = register(new_node(whatsit_code, literalwhatsit_code)) setfield(rawliteralnode, "mode",rawliteral_code) 44 45function nodepool.originliteral(str) local t = copy_node(originliteralnode) setdata(t,str) return t end 46function nodepool.pageliteral (str) local t = copy_node(pageliteralnode ) setdata(t,str) return t end 47function nodepool.directliteral(str) local t = copy_node(directliteralnode) setdata(t,str) return t end 48function nodepool.rawliteral (str) local t = copy_node(rawliteralnode ) setdata(t,str) return t end 49 50local literals = { 51 [originliteral_code] = originliteralnode, [literalvalues[originliteral_code]] = originliteralnode, 52 [pageliteral_code] = pageliteralnode, [literalvalues[pageliteral_code]] = pageliteralnode, 53 [directliteral_code] = directliteralnode, [literalvalues[directliteral_code]] = directliteralnode, 54 [rawliteral_code] = rawliteralnode, [literalvalues[rawliteral_code]] = rawliteralnode, 55} 56 57function nodepool.literal(mode,str) 58 if str then 59 local t = copy_node(literals[mode] or pageliteralnode) 60 setdata(t,str) 61 return t 62 else 63 local t = copy_node(pageliteralnode) 64 setdata(t,mode) 65 return t 66 end 67end 68 69local savenode = register(new_node(whatsit_code, savewhatsit_code)) 70local restorenode = register(new_node(whatsit_code, restorewhatsit_code)) 71local setmatrixnode = register(new_node(whatsit_code, setmatrixwhatsit_code)) 72 73function nodepool.save() 74 return copy_node(savenode) 75end 76 77function nodepool.restore() 78 return copy_node(restorenode) 79end 80 81function nodepool.setmatrix(rx,sx,sy,ry,tx,ty) 82 local t = copy_node(setmatrixnode) 83 setdata(t,tomatrix(rx,sx,sy,ry,tx,ty)) 84 return t 85end 86 |
