67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
#!/usr/bin/env nomsu -V4.10.12.7
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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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test:
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assume (nomsu files for "core")
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externally (files for %path) means:
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%files = (=lua "Files.list(\%path)")
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if %files: %files = (List %files)
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return %files
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externally (nomsu files for %path) means:
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for %nomsupath in (%package.nomsupath::all matches of "[^;]+"):
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%files = (files for "\%nomsupath/\%path")
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if %files: 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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test:
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read file "lib/os.nom"
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externally (read file %filename) means (=lua "Files.read(\%filename)")
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test:
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for file %f in "core": do nothing
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(for file %f in %path %body) parses as (for %f in (nomsu files for %path) %body)
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# TODO: deprecate
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#(%expr for file %f in %path) compiles to "\
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..(function()
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local ret = List{}
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for i,\(%f as lua expr) in Files.walk(\(%path as lua expr)) do
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ret[#ret+1] = \(%expr as lua)
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end
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return ret
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end)()"
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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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assume (%filename != "stdin") or barf "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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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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:
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for % in (line number of %source.start in %file) to (..)
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line number of %source.stop in %file
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..: add (line % in %file)
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..::joined with "\n"
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externally (spoof file %text) means (%Files.spoof %text)
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externally (spoof file %filename = %text) means (%Files.spoof %filename %text)
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