Abbreviations, easy: Difference between revisions

=={{header|JavaScript}}==

=== Deno ===

Works in Browsers as well, uses ES6. Most of the hardwork was done by the RegEx engine.

<lang javascript>

var abr=`Add ALTer BAckup Bottom CAppend Change SCHANGE CInsert CLAst COMPress COpy

COUnt COVerlay CURsor DELete CDelete Down DUPlicate Xedit EXPand EXTract Find

NFind NFINDUp NFUp CFind FINdup FUp FOrward GET Help HEXType Input POWerinput

Join SPlit SPLTJOIN LOAD Locate CLocate LOWercase UPPercase LPrefix MACRO

MErge MODify MOve MSG Next Overlay PARSE PREServe PURge PUT PUTD Query QUIT

READ RECover REFRESH RENum REPeat Replace CReplace RESet RESTore RGTLEFT

RIght LEft SAVE SET SHift SI SORT SOS STAck STATus TOP TRAnsfer Type Up`

.split(/\W+/).map(_=>_.trim())

function escapeRegex(string) {

return string.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');

}

var input = prompt();

console.log(input.length==0?null:input.trim().split(/\s+/)

.map(

(s=>abr.filter(

a=>(new RegExp('^'+escapeRegex(s),'i'))

.test(a)&&s.length>=a.match(/^[A-Z]+/)[0].length

)[0])

)

.map(_=>typeof _=="undefined"?"*error*":_).join(' ')

)

</lang>