23 lines
706 B
Lua
23 lines
706 B
Lua
local args, options = require("shell").parse(...)
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if options.help then
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io.write([[
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`echo` writes the provided string(s) to the standard output.
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-n do not output the trialing newline
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-e enable interpretation of backslash escapes
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--help display this help and exit
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]])
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return
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end
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if options.e then
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for index,arg in ipairs(args) do
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-- use lua load here to interpret escape sequences such as \27
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-- instead of writing my own language to interpret them myself
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-- note that in a real terminal, \e is used for \27
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args[index] = assert(load("return \"" .. arg:gsub('"', [[\"]]) .. "\""))()
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end
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end
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io.write(table.concat(args," "))
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if not options.n then
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io.write("\n")
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end
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