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Generalize asym usage

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This commit is contained in:
Bán Dénes 2022-12-03 12:38:07 +01:00
parent 40406fbc03
commit cf9007aa50
9 changed files with 36 additions and 19 deletions
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11
src/assert.js
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@ -67,3 +67,14 @@ exports.trbl = (raw, name, _default=0) => units => {
if (raw.length == 2) raw = [raw[1], raw[0], raw[1], raw[0]]
return arr(raw, name, 4, 'number', _default)(units)
}
exports.asym = (raw, name) => {
// allow different aliases
source_aliases = ['source', 'origin', 'base', 'primary', 'left']
clone_aliases = ['clone', 'image', 'derived', 'secondary', 'right']
_in(raw, name, ['both'].concat(source_aliases, clone_aliases))
// return aliases to canonical names
if (source_aliases.includes(raw)) return 'source'
if (clone_aliases.includes(raw)) return 'clone'
return raw
}