From 3668eb2ecc0f7dcc6c44fd1e971cbe37fa010fd6 Mon Sep 17 00:00:00 2001
From: Hans Hagen <pragma@wxs.nl>
Date: Fri, 2 Aug 2019 21:03:52 +0200
Subject: 2019-08-02 19:47:00

---
 tex/context/base/mkiv/pack-ori.lua | 70 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 tex/context/base/mkiv/pack-ori.lua

(limited to 'tex/context/base/mkiv/pack-ori.lua')

diff --git a/tex/context/base/mkiv/pack-ori.lua b/tex/context/base/mkiv/pack-ori.lua
new file mode 100644
index 000000000..a786b19ef
--- /dev/null
+++ b/tex/context/base/mkiv/pack-ori.lua
@@ -0,0 +1,70 @@
+if not modules then modules = { } end modules ['pack-ori'] = {
+    version   = 1.001,
+    comment   = "companion to supp-box.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+local context   = context
+local implement = interfaces.implement
+local variables = interfaces.variables
+
+local settings_to_array = utilities.parsers.settings_to_array
+
+local orientation = {
+    [variables.up]     = 0x000,
+    [variables.left]   = 0x001,
+    [variables.down]   = 0x002,
+    [variables.right]  = 0x003,
+    [variables.top]    = 0x004,
+    [variables.bottom] = 0x005,
+}
+local vertical = {
+    [variables.line]   = 0x000,
+    [variables.top]    = 0x010,
+    [variables.bottom] = 0x020,
+    [variables.middle] = 0x030,
+}
+local horizontal = {
+    [variables.middle]     = 0x000,
+    [variables.flushleft]  = 0x100,
+    [variables.flushright] = 0x200,
+    [variables.left]       = 0x300,
+    [variables.right]      = 0x400,
+}
+
+implement {
+    name      = "toorientation",
+    public    = true,
+    arguments = {
+        {
+            { "horizontal",  "string" },
+            { "vertical",    "string" },
+            { "orientation", "string" },
+        }
+    },
+    actions   = function(t)
+        local n = 0
+        local m = t.horizontal  if m then n = n | (horizontal [m] or 0) end
+        local m = t.vertical    if m then n = n | (vertical   [m] or 0) end
+        local m = t.orientation if m then n = n | (orientation[m] or 0) end
+     -- logs.report("orientation","0x%03X : %s",n,table.sequenced(t))
+        context(n)
+    end,
+}
+
+implement {
+    name      = "stringtoorientation",
+    public    = true,
+    arguments = "string",
+    actions   = function(s)
+        local n = 0
+        local t = settings_to_array(s)
+        local m = t[1] if m then n = n | (horizontal [m] or 0) end
+        local m = t[2] if m then n = n | (vertical   [m] or 0) end
+        local m = t[3] if m then n = n | (orientation[m] or 0) end
+     -- logs.report("orientation","0x%03X : %s",n,s)
+        context(n)
+    end,
+}
-- 
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