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split_shell: fix escape handling by unwinding escaping by 1 level

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Starbeamrainbowlabs 2021-07-28 17:54:44 +01:00
parent c282e286bb
commit 6a77b3cd21
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GPG Key ID: 1BE5172E637709C2
1 changed files with 15 additions and 2 deletions
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17
worldeditadditions/utils/strings/split_shell.lua
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@ -2,6 +2,15 @@ function is_whitespace(char)
return char == " " or char == "\t" or char == "\r" or char == "\n"
end
local function table_map(tbl, func)
local result = {}
for i,value in ipairs(tbl) do
local newval = func(value, i)
if newval ~= nil then table.insert(result, newval) end
end
return result
end
function split_shell(text)
local text_length = #text
local scan_pos = 1
@ -60,7 +69,11 @@ function split_shell(text)
if #acc > 0 then
table.insert(result, table.concat(acc, ""))
end
return result
-- Unwind all escapes by 1 level
return table_map(result, function(str)
return str:gsub("\\([\"'\\])", "%1")
end)
end
function test(text)
@ -74,7 +87,7 @@ end
test("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("y\"ay \"yay 'in\\\"side quotes' yay\" y\\\"ay")