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split_shell: correctly handle escaping edge cases

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Starbeamrainbowlabs 2021-07-28 17:49:18 +01:00
parent 31a4d89a49
commit c282e286bb
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
1 changed files with 13 additions and 2 deletions
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15
worldeditadditions/utils/strings/split_shell.lua
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@ -36,7 +36,10 @@ function split_shell(text)
if curchar == "\"" and prevchar ~= "\\" and is_whitespace(nextchar) then if curchar == "\"" and prevchar ~= "\\" and is_whitespace(nextchar) then
-- It's the end of a quote! -- It's the end of a quote!
mode = "NORMAL" mode = "NORMAL"
elseif (curchar == "\\" and nextchar ~= "\"" and not is_whitespace(nextnextchar)) or curchar ~= "\\" then elseif (curchar == "\\" and (
nextchar ~= "\""
or (nextchar == "\"" and not is_whitespace(nextnextchar))
)) or curchar ~= "\\" then
-- It's a regular character -- It's a regular character
table.insert(acc, curchar) table.insert(acc, curchar)
end end
@ -44,7 +47,10 @@ function split_shell(text)
if curchar == "'" and prevchar ~= "\\" and is_whitespace(nextchar) then if curchar == "'" and prevchar ~= "\\" and is_whitespace(nextchar) then
-- It's the end of a quote! -- It's the end of a quote!
mode = "NORMAL" mode = "NORMAL"
elseif (curchar == "\\" and nextchar ~= "'" and not is_whitespace(nextnextchar)) or curchar ~= "\\" then elseif (curchar == "\\" and (
nextchar ~= "'"
or (nextchar == "'" and not is_whitespace(nextnextchar))
)) or curchar ~= "\\" then
-- It's a regular character -- It's a regular character
table.insert(acc, curchar) table.insert(acc, curchar)
end end
@ -70,3 +76,8 @@ test("yay \"yay yay\" yay")
test("yay \"yay\\\" yay\" yay") test("yay \"yay\\\" yay\" yay")
test("yay \"yay 'inside quotes' yay\" yay") test("yay \"yay 'inside quotes' yay\" yay")
test("yay 'inside quotes' another") test("yay 'inside quotes' another")
test("y\"ay \"yay 'in\\\"side quotes' yay\" y\\\"ay")
-- for i=1,10000 do
-- split_shell("y\"ay \"yay 'in\\\"side quotes' yay\" y\\\"ay")
-- end