50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
#!/usr/bin/env nomsu -V6.14
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#
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This file defines some actions that interact with the operating system and filesystem.
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externally (files for $path) means:
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$files = (=lua "Files.list(\$path)")
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if $files:
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$files = (List $files)
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return $files
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externally (=sh $cmd) means:
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lua> ("
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local result = io.popen(\$cmd)
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local contents = result:read("*a")
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result:close()
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return contents
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")
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external $(sh> $) = $os.execute
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test:
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read file "lib/os.nom"
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external $(read file $filename) = $Files.read
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externally [
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write to file $filename $text, to file $filename write $text
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write $text to file $filename
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] all mean:
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unless ($filename != "stdin"):
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fail "Cannot write to stdin"
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lua> ("
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local file = io.open(\$filename, 'w')
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file:write(\$text)
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file:close()
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")
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externally (source lines of $tree) means:
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$source = ($tree.source if ($tree is syntax tree) else $tree)
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$file = (read file $source.filename)
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return
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[
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: for $ in ($file, line number at $source.start) to
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$file, line number at $source.stop
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..: add ($file, line $)
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], joined with "\n"
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external $(spoof file $text) = $Files.spoof
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external $(spoof file $filename = $text) = $Files.spoof
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