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lua io: fix incorrect mode detection

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string.find has pattern matching by default, so it was incorrectly
reading "r+" when the mode was supposed to be "r". So this disables the
pattern matching and does a plain substring search.
This commit is contained in:
ihaveahax 2025-04-06 00:34:30 -05:00 committed by d0k3
parent 15eb3b1ebe
commit 99f1abd7a4
1 changed files with 4 additions and 4 deletions
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8
data/luapackages/io.lua
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@ -35,7 +35,7 @@ function file.new(filename, mode)
end end
debugf("opening", filename, mode) debugf("opening", filename, mode)
of = setmetatable({_filename=filename, _mode=mode, _seek=0, _open=true, _readable=false, _writable=false, _append_only=false}, file) of = setmetatable({_filename=filename, _mode=mode, _seek=0, _open=true, _readable=false, _writable=false, _append_only=false}, file)
if string.find(mode, "w") then if string.find(mode, "w", 1, true) then
debugf("opening", filename, "for writing") debugf("opening", filename, "for writing")
-- preemptively allow writing instead of having that prompt at file:write -- preemptively allow writing instead of having that prompt at file:write
allowed = fs.allow(filename) allowed = fs.allow(filename)
@ -48,7 +48,7 @@ function file.new(filename, mode)
of._size = 0 of._size = 0
of._readable = false of._readable = false
of._writable = true of._writable = true
elseif string.find(mode, "r+") then elseif string.find(mode, "r+", 1, true) then
debugf("opening", filename, "for updating") debugf("opening", filename, "for updating")
allowed = fs.allow(filename) allowed = fs.allow(filename)
debugf("allowed:", allowed) debugf("allowed:", allowed)
@ -64,7 +64,7 @@ function file.new(filename, mode)
of._stat = {} of._stat = {}
of._size = 0 of._size = 0
end end
elseif string.find(mode, "a") then elseif string.find(mode, "a", 1, true) then
debugf("opening", filename, "for appending") debugf("opening", filename, "for appending")
allowed = fs.allow(filename) allowed = fs.allow(filename)
debugf("allowed:", allowed) debugf("allowed:", allowed)
@ -82,7 +82,7 @@ function file.new(filename, mode)
of._stat = {} of._stat = {}
of._size = 0 of._size = 0
end end
if string.find(mode, "+") then if string.find(mode, "+", 1, true) then
debugf("append update mode") debugf("append update mode")
of._readable = true of._readable = true
else else