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move libraries out of main dist and into PsychOSPackages

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This commit is contained in:
Izaya 2020-06-07 23:24:04 +10:00
parent 92084e8c90
commit b82bb2a853
2 changed files with 0 additions and 183 deletions
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69
lib/preproc.lua
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@ -1,69 +0,0 @@
local preproc = {}
preproc.directives = {}
function preproc.parsewords(line) -- string -- table -- Returns a table of words from the string *line*, parsing quotes and escapes.
local rt = {""}
local escaped, quoted = false, false
for c in line:gmatch(".") do
if escaped then
rt[#rt] = rt[#rt]..c
elseif c == '"' or c == "'" then
quoted = not quoted
elseif c == "\\" then
escaped = true
elseif c:match("%s") and not quoted and rt[#rt]:len() > 0 then
rt[#rt+1] = ""
else
rt[#rt] = rt[#rt]..c
end
end
return rt
end
function preproc.line(line) -- string -- -- Returns either a function - which can be called to get lines until it returns nil - or a string from processing *line* using preprocessor directives.
if line:match("^%-%-#") then
local directive, args = line:match("^%-%-#(%S+)%s(.+)")
print(directive,args)
local args = preproc.parsewords(args)
if preproc.directives[directive] then
return preproc.directives[directive](table.unpack(args))
else
error("unknown preprocessor directive: "..directive)
end
else
return line
end
end
function preproc.preproc(...) -- string -- string -- Returns the output from preprocessing the files listed in *...*.
local tA = {...}
local output = ""
for _,fname in ipairs(tA) do
local f,e = io.open(fname)
if not f then error("unable to open file "..fname..": "..e) end
for line in f:lines() do
local r = preproc.line(line)
if type(r) == "function" then
while true do
local rs = r()
if not rs then break end
output = output .. rs .. "\n"
end
else
output = output .. r .. "\n"
end
end
end
return output
end
preproc.directives.include = preproc.preproc
return setmetatable(preproc,{__call=function(_,...)
local tA = {...}
local out = table.remove(tA,#tA)
local f,e = io.open(out,"wb")
if not f then error("unable to open file "..out..": "..e) end
f:write(preproc.preproc(table.unpack(tA)))
f:close()
end})

114
lib/unionfs.lua
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@ -1,114 +0,0 @@
local unionfs = {}
local function normalise(path)
return table.concat(fs.segments(path),"/")
end
function unionfs.create(...) -- string -- table -- Returns a unionfs object of the directories specified in *...*.
local paths,fids,fc = {...}, {}, 0
for k,v in pairs(paths) do
paths[k] = "/"..normalise(v)
end
local proxy = {}
local function realpath(path)
path = path or ""
for k,v in pairs(paths) do
if fs.exists(v.."/"..path) then
return v.."/"..path
end
end
return paths[1].."/"..path
end
function proxy.setLabel()
return false
end
function proxy.spaceUsed()
return fs.spaceUsed(paths[1])
end
function proxy.spaceTotal()
return fs.spaceTotal(paths[1])
end
function proxy.isReadOnly()
return fs.isReadOnly(paths[1])
end
function proxy.isDirectory(path)
return fs.isDirectory(realpath(path))
end
function proxy.lastModified(path)
return fs.lastModified(realpath(path))
end
function proxy.getLabel()
return fs.getLabel(paths[1])
end
function proxy.exists(path)
return fs.exists(realpath(path))
end
function proxy.remove(path)
return fs.remove(realpath(path))
end
function proxy.size(path)
return fs.size(realpath(path))
end
function proxy.list(path)
local nt,rt = {},{}
if #fs.segments(path) < 1 then
for k,v in pairs(paths) do
for l,m in ipairs(fs.list(v.."/"..path)) do
nt[m] = true
end
end
for k,v in pairs(nt) do
rt[#rt+1] = k
end
table.sort(rt)
return rt
else
return fs.list(realpath(path))
end
end
function proxy.open(path,mode)
local fh, r = fs.open(realpath(path),mode)
if not fh then return fh, r end
fids[fc] = fh
fc = fc + 1
return fc - 1
end
function proxy.close(fid)
if not fids[fid] then
return false, "file not open"
end
local rfh = fids[fid]
fids[fid] = nil
return rfh:close()
end
function proxy.write(fid,d)
if not fids[fid] then
return false, "file not open"
end
return fids[fid]:write(d)
end
function proxy.read(fid,d)
if not fids[fid] then
return false, "file not open"
end
local rb = fids[fid]:read(d)
if rb == "" then rb = nil end
return rb
end
function proxy.seek(fid,d)
if not fids[fid] then
return false, "file not open"
end
return fids[fid]:seek(d)
end
return proxy
end
return unionfs