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-rw-r--r--tex/context/base/util-pck.lua288
1 files changed, 144 insertions, 144 deletions
diff --git a/tex/context/base/util-pck.lua b/tex/context/base/util-pck.lua
index fe9911946..7be5e8f42 100644
--- a/tex/context/base/util-pck.lua
+++ b/tex/context/base/util-pck.lua
@@ -1,144 +1,144 @@
-if not modules then modules = { } end modules ['util-pck'] = {
- version = 1.001,
- comment = "companion to luat-lib.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
--- moved from core-uti
-
-local next, tostring, type = next, tostring, type
-local sort, concat = table.sort, table.concat
-local sortedhashkeys, sortedkeys = table.sortedhashkeys, table.sortedkeys
-
-utilities = utilities or { }
-utilities.packers = utilities.packers or { }
-local packers = utilities.packers
-packers.version = 1.00
-
-local function hashed(t)
- local s, ns = { }, 0
- for k, v in next, t do
- ns = ns + 1
- if type(v) == "table" then
- s[ns] = k .. "={" .. hashed(v) .. "}"
- else
- s[ns] = k .. "=" .. tostring(v)
- end
- end
- sort(s)
- return concat(s,",")
-end
-
-local function simplehashed(t)
- local s, ns = { }, 0
- for k, v in next, t do
- ns = ns + 1
- s[ns] = k .. "=" .. v
- end
- sort(s)
- return concat(s,",")
-end
-
-packers.hashed = hashed
-packers.simplehashed = simplehashed
-
--- In luatex < 0.74 (lua 5.1) a next chain was the same for each run so no sort was needed,
--- but in the latest greatest versions (lua 5.2) we really need to sort the keys in order
--- not to get endless runs due to a difference in tuc files.
-
-local function pack(t,keys,hash,index)
- if t then
- -- for k, v in next, t do
- -- local sk = sortedkeys(t)
- local sk = sortedhashkeys(t)
- for i=1,#sk do
- local k = sk[i]
- local v = t[k]
- --
- if type(v) == "table" then
- pack(v,keys,hash,index)
- if keys[k] then
- local h = hashed(v)
- local i = hash[h]
- if not i then
- i = #index + 1
- index[i] = v
- hash[h] = i
- end
- t[k] = i
- end
- end
- end
- end
-end
-
-local function unpack(t,keys,index)
- if t then
- for k, v in next, t do
- if keys[k] and type(v) == "number" then
- local iv = index[v]
- if iv then
- v = iv
- t[k] = v
- end
- end
- if type(v) == "table" then
- unpack(v,keys,index)
- end
- end
- end
-end
-
-function packers.new(keys,version)
- return {
- version = version or packers.version,
- keys = table.tohash(keys),
- hash = { },
- index = { },
- }
-end
-
-function packers.pack(t,p,shared)
- if shared then
- pack(t,p.keys,p.hash,p.index)
- elseif not t.packer then
- pack(t,p.keys,p.hash,p.index)
- if #p.index > 0 then
- t.packer = {
- version = p.version or packers.version,
- keys = p.keys,
- index = p.index,
- }
- end
- p.hash = { }
- p.index = { }
- end
-end
-
-function packers.unpack(t,p,shared)
- if shared then
- if p then
- unpack(t,p.keys,p.index)
- end
- else
- local tp = t.packer
- if tp then
- if tp.version == (p and p.version or packers.version) then
- unpack(t,tp.keys,tp.index)
- else
- return false
- end
- t.packer = nil
- end
- end
- return true
-end
-
-function packers.strip(p)
- p.hash = nil
-end
-
--- We could have a packer.serialize where we first flush the shared table
--- and then use inline a reference . This saves an unpack.
+if not modules then modules = { } end modules ['util-pck'] = {
+ version = 1.001,
+ comment = "companion to luat-lib.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- moved from core-uti
+
+local next, tostring, type = next, tostring, type
+local sort, concat = table.sort, table.concat
+local sortedhashkeys, sortedkeys = table.sortedhashkeys, table.sortedkeys
+
+utilities = utilities or { }
+utilities.packers = utilities.packers or { }
+local packers = utilities.packers
+packers.version = 1.00
+
+local function hashed(t)
+ local s, ns = { }, 0
+ for k, v in next, t do
+ ns = ns + 1
+ if type(v) == "table" then
+ s[ns] = k .. "={" .. hashed(v) .. "}"
+ else
+ s[ns] = k .. "=" .. tostring(v)
+ end
+ end
+ sort(s)
+ return concat(s,",")
+end
+
+local function simplehashed(t)
+ local s, ns = { }, 0
+ for k, v in next, t do
+ ns = ns + 1
+ s[ns] = k .. "=" .. v
+ end
+ sort(s)
+ return concat(s,",")
+end
+
+packers.hashed = hashed
+packers.simplehashed = simplehashed
+
+-- In luatex < 0.74 (lua 5.1) a next chain was the same for each run so no sort was needed,
+-- but in the latest greatest versions (lua 5.2) we really need to sort the keys in order
+-- not to get endless runs due to a difference in tuc files.
+
+local function pack(t,keys,hash,index)
+ if t then
+ -- for k, v in next, t do
+ -- local sk = sortedkeys(t)
+ local sk = sortedhashkeys(t)
+ for i=1,#sk do
+ local k = sk[i]
+ local v = t[k]
+ --
+ if type(v) == "table" then
+ pack(v,keys,hash,index)
+ if keys[k] then
+ local h = hashed(v)
+ local i = hash[h]
+ if not i then
+ i = #index + 1
+ index[i] = v
+ hash[h] = i
+ end
+ t[k] = i
+ end
+ end
+ end
+ end
+end
+
+local function unpack(t,keys,index)
+ if t then
+ for k, v in next, t do
+ if keys[k] and type(v) == "number" then
+ local iv = index[v]
+ if iv then
+ v = iv
+ t[k] = v
+ end
+ end
+ if type(v) == "table" then
+ unpack(v,keys,index)
+ end
+ end
+ end
+end
+
+function packers.new(keys,version)
+ return {
+ version = version or packers.version,
+ keys = table.tohash(keys),
+ hash = { },
+ index = { },
+ }
+end
+
+function packers.pack(t,p,shared)
+ if shared then
+ pack(t,p.keys,p.hash,p.index)
+ elseif not t.packer then
+ pack(t,p.keys,p.hash,p.index)
+ if #p.index > 0 then
+ t.packer = {
+ version = p.version or packers.version,
+ keys = p.keys,
+ index = p.index,
+ }
+ end
+ p.hash = { }
+ p.index = { }
+ end
+end
+
+function packers.unpack(t,p,shared)
+ if shared then
+ if p then
+ unpack(t,p.keys,p.index)
+ end
+ else
+ local tp = t.packer
+ if tp then
+ if tp.version == (p and p.version or packers.version) then
+ unpack(t,tp.keys,tp.index)
+ else
+ return false
+ end
+ t.packer = nil
+ end
+ end
+ return true
+end
+
+function packers.strip(p)
+ p.hash = nil
+end
+
+-- We could have a packer.serialize where we first flush the shared table
+-- and then use inline a reference . This saves an unpack.