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authorKarl Berry <karl@freefriends.org>2013-04-08 00:43:40 +0000
committerKarl Berry <karl@freefriends.org>2013-04-08 00:43:40 +0000
commit824f7b0903de8ad7f6ee3d7656005e4c59155e06 (patch)
treeabfc8673ef9916f3ab7074e811207384c301492b /Master/texmf-dist/tex/context/base/data-pre.lua
parent689aefb0727676ed3cddf331337b4be226495e72 (diff)
context import for TL13, from www.pragma-ade.com/context/beta/cont-tmf.zip
git-svn-id: svn://tug.org/texlive/trunk@29731 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/context/base/data-pre.lua')
-rw-r--r--Master/texmf-dist/tex/context/base/data-pre.lua75
1 files changed, 61 insertions, 14 deletions
diff --git a/Master/texmf-dist/tex/context/base/data-pre.lua b/Master/texmf-dist/tex/context/base/data-pre.lua
index 5b25c5f874d..e48a5aa8cee 100644
--- a/Master/texmf-dist/tex/context/base/data-pre.lua
+++ b/Master/texmf-dist/tex/context/base/data-pre.lua
@@ -19,10 +19,11 @@ local resolvers = resolvers
local prefixes = utilities.storage.allocate()
resolvers.prefixes = prefixes
-local gsub = string.gsub
local cleanpath, findgivenfile, expansion = resolvers.cleanpath, resolvers.findgivenfile, resolvers.expansion
local getenv = resolvers.getenv -- we can probably also use resolvers.expansion
-local P, Cs, lpegmatch = lpeg.P, lpeg.Cs, lpeg.match
+local P, S, R, C, Cs, lpegmatch = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.Cs, lpeg.match
+local joinpath, basename, dirname = file.join, file.basename, file.dirname
+local getmetatable, rawset, type = getmetatable, rawset, type
-- getenv = function(...) return resolvers.getenv(...) end -- needs checking (definitions changes later on)
@@ -64,28 +65,47 @@ end
prefixes.filename = function(str)
local fullname = findgivenfile(str) or ""
- return cleanpath(file.basename((fullname ~= "" and fullname) or str)) -- no cleanpath needed here
+ return cleanpath(basename((fullname ~= "" and fullname) or str)) -- no cleanpath needed here
end
prefixes.pathname = function(str)
local fullname = findgivenfile(str) or ""
- return cleanpath(file.dirname((fullname ~= "" and fullname) or str))
+ return cleanpath(dirname((fullname ~= "" and fullname) or str))
end
prefixes.selfautoloc = function(str)
- return cleanpath(file.join(getenv('SELFAUTOLOC'),str))
+ return cleanpath(joinpath(getenv('SELFAUTOLOC'),str))
end
prefixes.selfautoparent = function(str)
- return cleanpath(file.join(getenv('SELFAUTOPARENT'),str))
+ return cleanpath(joinpath(getenv('SELFAUTOPARENT'),str))
end
prefixes.selfautodir = function(str)
- return cleanpath(file.join(getenv('SELFAUTODIR'),str))
+ return cleanpath(joinpath(getenv('SELFAUTODIR'),str))
end
prefixes.home = function(str)
- return cleanpath(file.join(getenv('HOME'),str))
+ return cleanpath(joinpath(getenv('HOME'),str))
+end
+
+local function toppath()
+ local inputstack = resolvers.inputstack -- dependency, actually the code should move but it's
+ if not inputstack then -- more convenient to keep it here
+ return "."
+ end
+ local pathname = dirname(inputstack[#inputstack] or "")
+ if pathname == "" then
+ return "."
+ else
+ return pathname
+ end
+end
+
+resolvers.toppath = toppath
+
+prefixes.toppath = function(str)
+ return cleanpath(joinpath(toppath(),str))
end
prefixes.env = prefixes.environment
@@ -121,6 +141,30 @@ function resolvers.resetresolve(str)
resolved, abstract = { }, { }
end
+-- todo: use an lpeg (see data-lua for !! / stripper)
+
+-- local function resolve(str) -- use schemes, this one is then for the commandline only
+-- if type(str) == "table" then
+-- local t = { }
+-- for i=1,#str do
+-- t[i] = resolve(str[i])
+-- end
+-- return t
+-- else
+-- local res = resolved[str]
+-- if not res then
+-- res = gsub(str,"([a-z][a-z]+):([^ \"\';,]*)",_resolve_) -- home:xx;selfautoparent:xx; etc (comma added)
+-- resolved[str] = res
+-- abstract[res] = str
+-- end
+-- return res
+-- end
+-- end
+
+-- home:xx;selfautoparent:xx;
+
+local pattern = Cs((C(R("az")^2) * P(":") * C((1-S(" \"\';,"))^1) / _resolve_ + P(1))^0)
+
local function resolve(str) -- use schemes, this one is then for the commandline only
if type(str) == "table" then
local t = { }
@@ -131,7 +175,7 @@ local function resolve(str) -- use schemes, this one is then for the commandline
else
local res = resolved[str]
if not res then
- res = gsub(str,"([a-z][a-z]+):([^ \"\';,]*)",_resolve_) -- home:xx;selfautoparent:xx; etc (comma added)
+ res = lpegmatch(pattern,str)
resolved[str] = res
abstract[res] = str
end
@@ -146,7 +190,7 @@ end
resolvers.resolve = resolve
resolvers.unresolve = unresolve
-if os.uname then
+if type(os.uname) == "function" then
for k, v in next, os.uname() do
if not prefixes[k] then
@@ -158,11 +202,17 @@ end
if os.type == "unix" then
+ -- We need to distringuish between a prefix and something else : so we
+ -- have a special repath variant for linux. Also, when a new prefix is
+ -- defined, we need to remake the matcher.
+
local pattern
local function makepattern(t,k,v)
+ if t then
+ rawset(t,k,v)
+ end
local colon = P(":")
- local p
for k, v in table.sortedpairs(prefixes) do
if p then
p = P(k) + p
@@ -171,9 +221,6 @@ if os.type == "unix" then
end
end
pattern = Cs((p * colon + colon/";" + P(1))^0)
- if t then
- t[k] = v
- end
end
makepattern()