69 lines
1.6 KiB
Lua
69 lines
1.6 KiB
Lua
-- Sort selected areas of a text file
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--
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-- Each area has a number of sections,
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-- and each section has a headline that
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-- is used as a key.
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--
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-- The program simply treats each section as a string, and treats each area as a
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-- collection of strings. The strings are sorted such that the sections in
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-- the area will appear in order.
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--
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-- For now, only asciidoc (and markdown) headlines are supported, but
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-- description lists are on the way
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--
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-- TODO:
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-- Variables and substitutions with evaluation via dostring
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-- Syntax for settings vars could be
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-- {{? mufassa = "tjams" }}
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-- {{? mufassa tjams }}
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--
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-- Syntax for inserting vars could be
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-- {{:: string.upper(mufassa) }}
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-- my little pony is {{: mufassa .. " næsehorn "}}
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--
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-- Can assist in streamlining data across the three guides.
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-- Can ease links.
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--
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-- Maybe a quick var insert:
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-- @@@mufassa (inserts the contents of mufassa variable)
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--
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local filename = arg[1]
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-- Check that a filename was given
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if arg[1] == nil then
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print(string.format("usage: %s [filename]", arg[0]))
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os.exit(0)
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end
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-- Check that file exists
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local f = io.open(filename, "r+")
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if not f then
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print(string.format("file '%s' does not exist", filename))
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os.exit(1)
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end
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local sorter = require("sorter")
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local sorted = sorter(f:lines())
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if arg[2] == "--overwrite" then
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--
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-- Check if there were any changes to the file.
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f:seek("set")
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if sorted == f:read("a*") then
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print("No sorting needed. Closing file")
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f:close()
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os.exit(0)
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end
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f:seek("set")
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f:write(sorted)
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f:flush()
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f:close()
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os.exit(0)
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end
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f:close()
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print(sorted)
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