2016-01-12 16:26:00

1 files changed, 93 insertions, 0 deletions

diff --git a/tex/context/base/mkiv/mult-chk.lua b/tex/context/base/mkiv/mult-chk.lua
new file mode 100644
index 000000000..44a9f739f
--- /dev/null
+++ b/tex/context/base/mkiv/mult-chk.lua
@@ -0,0 +1,93 @@
+if not modules then modules = { } end modules ['mult-chk'] = {
+    version   = 1.001,
+    comment   = "companion to mult-chk.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+local format = string.format
+local lpegmatch = lpeg.match
+local type = type
+
+local make_settings_to_hash_pattern = utilities.parsers.make_settings_to_hash_pattern
+local settings_to_set               = utilities.parsers.settings_to_set
+local allocate                      = utilities.storage.allocate
+
+local report_interface = logs.reporter("interface","checking")
+
+local interfaces = interfaces
+local implement  = interfaces.implement
+
+interfaces.syntax = allocate {
+    test = { keys = table.tohash { "a","b","c","d","e","f","g" } }
+}
+
+function interfaces.invalidkey(category,key)
+    report_interface("invalid key %a for %a in line %a",key,category,tex.inputlineno)
+end
+
+function interfaces.setvalidkeys(category,list)
+    local s = interfaces.syntax[category]
+    if not s then
+        interfaces.syntax[category] = {
+            keys = settings_to_set(list)
+        }
+    else
+        s.keys = settings_to_set(list)
+    end
+end
+
+function interfaces.addvalidkeys(category,list)
+    local s = interfaces.syntax[category]
+    if not s then
+        interfaces.syntax[category] = {
+            keys = settings_to_set(list)
+        }
+    else
+        settings_to_set(list,s.keys)
+    end
+end
+
+implement {
+    name      = "setvalidinterfacekeys",
+    actions   = interfaces.setvalidkeys,
+    arguments = { "string", "string" }
+}
+
+implement {
+    name      = "addvalidinterfacekeys",
+    actions   = interfaces.addvalidkeys,
+    arguments = { "string", "string" }
+}
+
+-- weird code, looks incomplete ... probably an experiment
+
+local prefix, category, keys
+
+local setsomevalue = context.setsomevalue
+local invalidkey   = interfaces.invalidkey
+
+local function set(key,value)
+    if keys and not keys[key] then
+        invalidkey(category,key)
+    else
+        setsomevalue(prefix,key,value)
+    end
+end
+
+local pattern = make_settings_to_hash_pattern(set,"tolerant")
+
+function interfaces.getcheckedparameters(k,p,s)
+    if s and s ~= "" then
+        prefix, category = p, k
+        keys = k and k ~= "" and interfaces.syntax[k].keys
+        lpegmatch(pattern,s)
+    end
+end
+
+implement {
+    name      = "getcheckedinterfaceparameters",
+    actions   = interfaces.getcheckedparameters,
+    arguments = { "string", "string", "string" }
+}