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author | Taco Hoekwater <taco@elvenkind.com> | 2008-06-12 10:42:53 +0000 |
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committer | Taco Hoekwater <taco@elvenkind.com> | 2008-06-12 10:42:53 +0000 |
commit | 0d01365d53c456d246da0ca1f0b3cd9868f02b35 (patch) | |
tree | 01a655c8028e17cfb371456b299c1848fe08c05b /Master/texmf-dist/tex/context/base/l-url.lua | |
parent | 44f3714442da07fdfc36a7f2a8dcd5d4294c5d26 (diff) |
ConTeXt release 2008.05.21
git-svn-id: svn://tug.org/texlive/trunk@8691 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/context/base/l-url.lua')
-rw-r--r-- | Master/texmf-dist/tex/context/base/l-url.lua | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/l-url.lua b/Master/texmf-dist/tex/context/base/l-url.lua new file mode 100644 index 00000000000..3bb2b1f11f4 --- /dev/null +++ b/Master/texmf-dist/tex/context/base/l-url.lua @@ -0,0 +1,103 @@ +-- filename : l-url.lua +-- author : Hans Hagen, PRAGMA-ADE, Hasselt NL +-- copyright: PRAGMA ADE / ConTeXt Development Team +-- license : see context related readme files + +if not versions then versions = { } end versions['l-url'] = 1.001 +if not url then url = { } end + +-- from the spec (on the web): +-- +-- foo://example.com:8042/over/there?name=ferret#nose +-- \_/ \______________/\_________/ \_________/ \__/ +-- | | | | | +-- scheme authority path query fragment +-- | _____________________|__ +-- / \ / \ +-- urn:example:animal:ferret:nose + +do + + local function tochar(s) + return string.char(tonumber(s,16)) + end + + local colon, qmark, hash, slash, percent, endofstring = lpeg.P(":"), lpeg.P("?"), lpeg.P("#"), lpeg.P("/"), lpeg.P("%"), lpeg.P(-1) + + local hexdigit = lpeg.R("09","AF","af") + local escaped = percent * lpeg.C(hexdigit * hexdigit) / tochar + + local scheme = lpeg.Cs((escaped+(1-colon-slash-qmark-hash))^0) * colon + lpeg.Cc("") + local authority = slash * slash * lpeg.Cs((escaped+(1- slash-qmark-hash))^0) + lpeg.Cc("") + local path = slash * lpeg.Cs((escaped+(1- qmark-hash))^0) + lpeg.Cc("") + local query = qmark * lpeg.Cs((escaped+(1- hash))^0) + lpeg.Cc("") + local fragment = hash * lpeg.Cs((escaped+(1- endofstring))^0) + lpeg.Cc("") + + local parser = lpeg.Ct(scheme * authority * path * query * fragment) + + function url.split(str) + return (type(str) == "string" and parser:match(str)) or str + end + +end + +function url.hashed(str) + local s = url.split(str) + return { + scheme = (s[1] ~= "" and s[1]) or "file", + authority = s[2], + path = s[3], + query = s[4], + fragment = s[5], + original = str + } +end + +function url.filename(filename) + local t = url.hashed(filename) + return (t.scheme == "file" and t.path:gsub("^/([a-zA-Z])([:|])/)","%1:")) or filename +end + +function url.query(str) + if type(str) == "string" then + local t = { } + for k, v in str:gmatch("([^&=]*)=([^&=]*)") do + t[k] = v + end + return t + else + return str + end +end + +--~ print(url.filename("file:///c:/oeps.txt")) +--~ print(url.filename("c:/oeps.txt")) +--~ print(url.filename("file:///oeps.txt")) +--~ print(url.filename("file:///etc/test.txt")) +--~ print(url.filename("/oeps.txt")) + +-- from the spec on the web (sort of): +--~ +--~ function test(str) +--~ print(table.serialize(url.hashed(str))) +--~ end +---~ +--~ test("%56pass%20words") +--~ test("file:///c:/oeps.txt") +--~ test("file:///c|/oeps.txt") +--~ test("file:///etc/oeps.txt") +--~ test("file://./etc/oeps.txt") +--~ test("file:////etc/oeps.txt") +--~ test("ftp://ftp.is.co.za/rfc/rfc1808.txt") +--~ test("http://www.ietf.org/rfc/rfc2396.txt") +--~ test("ldap://[2001:db8::7]/c=GB?objectClass?one#what") +--~ test("mailto:John.Doe@example.com") +--~ test("news:comp.infosystems.www.servers.unix") +--~ test("tel:+1-816-555-1212") +--~ test("telnet://192.0.2.16:80/") +--~ test("urn:oasis:names:specification:docbook:dtd:xml:4.1.2") +--~ test("/etc/passwords") +--~ test("http://www.pragma-ade.com/spaced%20name") + +--~ test("zip:///oeps/oeps.zip#bla/bla.tex") +--~ test("zip:///oeps/oeps.zip?bla/bla.tex") |