nomsu/compatibility/compatibility.nom
2018-07-17 17:53:17 -07:00

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#!/usr/bin/env nomsu -V1
use "core"
use "lib/os.nom"
%UPGRADES <- {}
action [upgrade to %version via %upgrade_fn]
%UPGRADES.%version <- %upgrade_fn
parse [upgrade %tree to %version as %body] as
upgrade to %version via ([%] -> (% with %tree -> %body))
action [%tree upgraded from %start_version to %end_version, %tree upgraded to %end_version from %start_version]
local action [%ver as list]
(% as number) for % where %ver matches "[0-9]+"
%versions <-: (keys in %UPGRADES) sorted by % -> (% as list)
for %ver in %versions
if: (%ver as list) <= (%start_version as list)
do next %ver
if: (%ver as list) > (%end_version as list)
stop %ver
%tree <- (call %UPGRADES.%ver with [%tree])
return %tree
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
parse [%tree upgraded from %start_version] as: %tree upgraded from %start_version to (Nomsu version)
parse [%tree upgraded to %end_version] as: %tree upgraded from %tree.version to %end_version
parse [%tree upgraded] as: %tree upgraded from %tree.version to (Nomsu version)
action [use %path from version %version]
for file %filename in %path
if (=lua "LOADED[\%filename]")
do next %filename
%file <-: read file %filename
%tree <-: parse %file from %filename
%tree <-: upgrade %tree from %version
run tree %tree