stable 2010-05-24 13:10

1 files changed, 54 insertions, 0 deletions

diff --git a/tex/context/base/pack-obj.lua b/tex/context/base/pack-obj.lua
new file mode 100644
index 000000000..0ee46fc99
--- /dev/null
+++ b/tex/context/base/pack-obj.lua
@@ -0,0 +1,54 @@
+if not modules then modules = { } end modules ['pack-obj'] = {
+    version   = 1.001,
+    comment   = "companion to pack-obj.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+--[[ldx--
+<p>We save object references in the main utility table. jobobjects are
+reusable components.</p>
+--ldx]]--
+
+local texsprint, texcount = tex.sprint, tex.count
+
+jobobjects           = jobobjects or { }
+jobobjects.collected = jobobjects.collected or { }
+jobobjects.tobesaved = jobobjects.tobesaved or { }
+
+local collected, tobesaved = jobobjects.collected, jobobjects.tobesaved
+
+local function initializer()
+    collected, tobesaved = jobobjects.collected, jobobjects.tobesaved
+end
+
+job.register('jobobjects.collected', jobobjects.tobesaved, initializer, nil)
+
+function jobobjects.save(tag,number,page)
+    local t = { number, page }
+    tobesaved[tag], collected[tag] = t, t
+end
+
+function jobobjects.set(tag,number,page)
+    collected[tag] = { number, page }
+end
+
+function jobobjects.get(tag)
+    return collected[tag] or tobesaved[tag]
+end
+
+function jobobjects.number(tag,default)
+    local o = collected[tag] or tobesaved[tag]
+    texsprint((o and o[1]) or default)
+end
+
+function jobobjects.page(tag,default)
+    local o = collected[tag] or tobesaved[tag]
+    texsprint((o and o[2]) or default)
+end
+
+function jobobjects.doifelse(tag)
+    commands.testcase(collected[tag] or tobesaved[tag])
+end
+