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author | Context Git Mirror Bot <phg42.2a@gmail.com> | 2016-01-12 17:15:07 +0100 |
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committer | Context Git Mirror Bot <phg42.2a@gmail.com> | 2016-01-12 17:15:07 +0100 |
commit | 8d8d528d2ad52599f11250cfc567fea4f37f2a8b (patch) | |
tree | 94286bc131ef7d994f9432febaf03fe23d10eef8 /tex/context/base/data-con.lua | |
parent | f5aed2e51223c36c84c5f25a6cad238b2af59087 (diff) | |
download | context-8d8d528d2ad52599f11250cfc567fea4f37f2a8b.tar.gz |
2016-01-12 16:26:00
Diffstat (limited to 'tex/context/base/data-con.lua')
-rw-r--r-- | tex/context/base/data-con.lua | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/tex/context/base/data-con.lua b/tex/context/base/data-con.lua deleted file mode 100644 index 240538df2..000000000 --- a/tex/context/base/data-con.lua +++ /dev/null @@ -1,138 +0,0 @@ -if not modules then modules = { } end modules ['data-con'] = { - version = 1.100, - 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" -} - -local format, lower, gsub = string.format, string.lower, string.gsub - -local trace_cache = false trackers.register("resolvers.cache", function(v) trace_cache = v end) -local trace_containers = false trackers.register("resolvers.containers", function(v) trace_containers = v end) -local trace_storage = false trackers.register("resolvers.storage", function(v) trace_storage = v end) - ---[[ldx-- -<p>Once we found ourselves defining similar cache constructs -several times, containers were introduced. Containers are used -to collect tables in memory and reuse them when possible based -on (unique) hashes (to be provided by the calling function).</p> - -<p>Caching to disk is disabled by default. Version numbers are -stored in the saved table which makes it possible to change the -table structures without bothering about the disk cache.</p> - -<p>Examples of usage can be found in the font related code.</p> ---ldx]]-- - -containers = containers or { } -local containers = containers -containers.usecache = true - -local report_containers = logs.reporter("resolvers","containers") - -local allocated = { } - -local mt = { - __index = function(t,k) - if k == "writable" then - local writable = caches.getwritablepath(t.category,t.subcategory) or { "." } - t.writable = writable - return writable - elseif k == "readables" then - local readables = caches.getreadablepaths(t.category,t.subcategory) or { "." } - t.readables = readables - return readables - end - end, - __storage__ = true -} - -function containers.define(category, subcategory, version, enabled) - if category and subcategory then - local c = allocated[category] - if not c then - c = { } - allocated[category] = c - end - local s = c[subcategory] - if not s then - s = { - category = category, - subcategory = subcategory, - storage = { }, - enabled = enabled, - version = version or math.pi, -- after all, this is TeX - trace = false, - -- writable = caches.getwritablepath and caches.getwritablepath (category,subcategory) or { "." }, - -- readables = caches.getreadablepaths and caches.getreadablepaths(category,subcategory) or { "." }, - } - setmetatable(s,mt) - c[subcategory] = s - end - return s - end -end - -function containers.is_usable(container,name) - return container.enabled and caches and caches.is_writable(container.writable, name) -end - -function containers.is_valid(container,name) - if name and name ~= "" then - local storage = container.storage[name] - return storage and storage.cache_version == container.version - else - return false - end -end - -function containers.read(container,name) - local storage = container.storage - local stored = storage[name] - if not stored and container.enabled and caches and containers.usecache then - stored = caches.loaddata(container.readables,name) - if stored and stored.cache_version == container.version then - if trace_cache or trace_containers then - report_containers("action %a, category %a, name %a","load",container.subcategory,name) - end - else - stored = nil - end - storage[name] = stored - elseif stored then - if trace_cache or trace_containers then - report_containers("action %a, category %a, name %a","reuse",container.subcategory,name) - end - end - return stored -end - -function containers.write(container, name, data) - if data then - data.cache_version = container.version - if container.enabled and caches then - local unique, shared = data.unique, data.shared - data.unique, data.shared = nil, nil - caches.savedata(container.writable, name, data) - if trace_cache or trace_containers then - report_containers("action %a, category %a, name %a","save",container.subcategory,name) - end - data.unique, data.shared = unique, shared - end - if trace_cache or trace_containers then - report_containers("action %a, category %a, name %a","store",container.subcategory,name) - end - container.storage[name] = data - end - return data -end - -function containers.content(container,name) - return container.storage[name] -end - -function containers.cleanname(name) - -- return (gsub(lower(name),"[^%w]+","-")) - return (gsub(lower(name),"[^%w\128-\255]+","-")) -- more utf friendly -end |