#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)^([^_\n]+)(?(?=_)|(?=\.jpg))"
Local $sString = "EAR-LESS2.P.jpg" & @CRLF & _
"EAR-LONG.jpg" & @CRLF & _
"EAR-SPAR1.jpg" & @CRLF & _
"EAR-SUST.H.jpg" & @CRLF & _
"EAR-TANYIN.jpg" & @CRLF & _
"EF-GILD.H.jpg" & @CRLF & _
"EFR-CHASD2.jpg" & @CRLF & _
"EL-GOIN.P.jpg" & @CRLF & _
"EL-LOVE.jpg" & @CRLF & _
"EM-CHAS.jpg" & @CRLF & _
"EM-GARD.jpg" & @CRLF & _
"EM-MENW.jpg" & @CRLF & _
"EM-TENK.jpg" & @CRLF & _
"EM-THIR.H.jpg" & @CRLF & _
"EM-WHATC.P.jpg" & @CRLF & _
"EMO-ANTI.S_1.jpg" & @CRLF & _
"EMO-SOUN.jpg" & @CRLF & _
"EO-AMIL1.jpg" & @CRLF & _
"EO-BIURT.jpg" & @CRLF & _
"EO-CHASI.jpg" & @CRLF & _
"EO-ETER.jpg" & @CRLF & _
"EO-FOUR.jpg" & @CRLF & _
"EO-GPSHM.H.jpg" & @CRLF & _
"EO-HAPP.jpg" & @CRLF & _
"EO-INNEW.jpg" & @CRLF & _
"EO-JEWIBLAL.jpg" & @CRLF & _
"EO-JEWIL.jpg" & @CRLF & _
"EO-LETTOL.jpg" & @CRLF & _
"EO-PARSM2.jpg" & @CRLF & _
"EO-PRAYPO1.jpg" & @CRLF & _
"EO-SECO.jpg" & @CRLF & _
"EO-SPIR.jpg" & @CRLF & _
"EO-TEACAHP.jpg" & @CRLF & _
"EO-TEFI.jpg" & @CRLF & _
"EO-THIN.jpg" & @CRLF & _
"EO-TOBE.jpg" & @CRLF & _
"EO-UPSH.jpg" & @CRLF & _
"EO-VISU.jpg" & @CRLF & _
"EO-YAHASP.jpg" & @CRLF & _
"EP-STH.SFLE.jpg" & @CRLF & _
"ERE-BEYO.jpg" & @CRLF & _
"ERE-BRIN.L.jpg" & @CRLF & _
"ERE-BRIN.M.jpg" & @CRLF & _
"ERE-MIND.jpg" & @CRLF & _
"ERE-ONEBO.jpg" & @CRLF & _
"ERE-PROC4.jpg" & @CRLF & _
"ERE-TOWA.p.jpg" & @CRLF & _
"HAR-LIKUAHS_1.jpg" & @CRLF & _
"HAR-SHAAYVITPK.jpg" & @CRLF & _
"HAR-SM64.jpg" & @CRLF & _
"HAR-TANYCM5.jpg" & @CRLF & _
"HAR-TANYCM7.jpg" & @CRLF & _
"HFR-MAAM1.jpg" & @CRLF & _
"HFR-MAAM3.jpg" & @CRLF & _
"HFR-ZICH.S_1.jpg" & @CRLF & _
"HFR-ZICH.S_2.jpg" & @CRLF & _
"HH-TOLDCP.jpg" & @CRLF & _
"HH-TOLDCRT.jpg" & @CRLF & _
"HKO-28SIVA.jpg" & @CRLF & _
"HMR-ATER.jpg" & @CRLF & _
"HMR-SMD2.jpg" & @CRLF & _
"HO-CHON.S_1.jpg" & @CRLF & _
"HO-CHON.S_3.jpg" & @CRLF & _
"HO-HASH3.jpg" & @CRLF & _
"HO-HASH4.jpg" & @CRLF & _
"HO-TANYLKV.jpg" & @CRLF & _
"HO-TISH.jpg" & @CRLF & _
"HO-YALKLY1.jpg" & @CRLF & _
"HO-YALKLY3.jpg" & @CRLF & _
"HO-YALKLYMC.jpg" & @CRLF & _
"HO-YAMITPE.jpg" & @CRLF & _
"HP-HAGG.KITZEE.jpg" & @CRLF & _
"HP-HAGG.S_1.jpg" & @CRLF & _
"HP-HAGG.Y.jpg" & @CRLF & _
"HP-STH.NSGR.jpg" & @CRLF & _
"HP-STMH_1.jpg" & @CRLF & _
"HRE-BIURBR_2.jpg" & @CRLF & _
"HRE-HAME_1.jpg" & @CRLF & _
"HRE-HAME_2.jpg" & @CRLF & _
"HRE-HASIS.jpg" & @CRLF & _
"HRE-HAYO.MEV_2.jpg" & @CRLF & _
"HRE-HAYOYMH.jpg" & @CRLF & _
"HRE-MAAY.jpg" & @CRLF & _
"HRE-OTSALSKY.jpg" & @CRLF & _
"HRE-SHAAEY.jpg" & @CRLF & _
"HRE-SHAAMYO.jpg" & @CRLF & _
"HRE-SHAAMYU.jpg" & @CRLF & _
"HRE-SMMC.jpg" & @CRLF & _
"HRE-SMMRH.jpg" & @CRLF & _
"HRE-TM1.l.jpg" & @CRLF & _
"HRE-TM10.jpg" & @CRLF & _
"HRE-TM18.jpg" & @CRLF & _
"HRE-TM21.jpg" & @CRLF & _
"HRE-TM30.jpg" & @CRLF & _
"HRE-TM35.jpg" & @CRLF & _
"HRE-TM37.jpg" & @CRLF & _
"HRE-TM41.jpg" & @CRLF & _
"HRE-TM54.jpg" & @CRLF & _
"HRE-TM57.jpg" & @CRLF & _
"HRE-TM62.jpg" & @CRLF & _
"HRE-TM71.jpg" & @CRLF & _
"HRE-TMMAFT_1.jpg" & @CRLF & _
"HRE-TMTLYV.OLD.jpg" & @CRLF & _
"HRE-VEAT.jpg" & @CRLF & _
"HRR-SM72BESH1.jpg" & @CRLF & _
"HRR-SM72BESH3.jpg" & @CRLF & _
"HTZ-HACH.jpg" & @CRLF & _
"HTZ-MAFT.jpg" & @CRLF & _
"HTZ-OHBA3.jpg" & @CRLF & _
"HTZ-OHBR5.jpg" & @CRLF & _
"HTZ-OHBR6.jpg" & @CRLF & _
"HTZ-OHD2.jpg" & @CRLF & _
"HTZ-OHD3.jpg" & @CRLF & _
"HTZ-OHN1.jpg" & @CRLF & _
"HTZ-OHN3.jpg" & @CRLF & _
"HTZ-OHS5.jpg" & @CRLF & _
"HTZ-OHS6.jpg" & @CRLF & _
"HTZ-OHSH1.jpg" & @CRLF & _
"HTZ-OHSH2.jpg" & @CRLF & _
"HTZ-OHSH2.jpg" & @CRLF & _
"HTZ-SLA3.jpg" & @CRLF & _
"HTZ-SLA4.jpg" & @CRLF & _
"HTZ-SLC1.jpg" & @CRLF & _
"HTZ-SLC2.jpg" & @CRLF & _
"HTZ-SLK.jpg" & @CRLF & _
"HTZ-SLM3.jpg" & @CRLF & _
"HTZ-SLMA.jpg" & @CRLF & _
"HTZ-SLMI.jpg" & @CRLF & _
"HTZ-SLS.jpg" & @CRLF & _
"HTZ-SLY3.jpg" & @CRLF & _
"HTZ-SMH1.jpg" & @CRLF & _
"efr-ss98.jpg" & @CRLF & _
"el-shabp.jpg" & @CRLF & _
"em-some.jpg" & @CRLF & _
"eo-248p.jpg" & @CRLF & _
"eo-jewi1.jpg" & @CRLF & _
"eo-littbbi.jpg" & @CRLF & _
"ep-sibc.ws.jpg" & @CRLF & _
"ere-beac.jpg" & @CRLF & _
"ere-holi.sb_1.jpg" & @CRLF & _
"ere-seek.jpg" & @CRLF & _
"ese-talk.p.jpg" & @CRLF & _
"har-shiu.s_2.jpg" & @CRLF & _
"har-shiu.s_3.jpg" & @CRLF & _
"har-tany.loh.jpg" & @CRLF & _
"hfr-ik10.jpg" & @CRLF & _
"hfr-ik11.jpg" & @CRLF & _
"hfr-ik15.jpg" & @CRLF & _
"hfr-ik17.jpg" & @CRLF & _
"hfr-ik6.jpg" & @CRLF & _
"hfr-likud.s_1.jpg" & @CRLF & _
"hfr-sm80.jpg" & @CRLF & _
"hfr-sm92.jpg" & @CRLF & _
"hku-tziy.jpg" & @CRLF & _
"ho-biurl.jpg" & @CRLF & _
"ho-yeso.jpg" & @CRLF & _
"hp-sth.ln.jpg" & @CRLF & _
"hp-tehi.l.jpg" & @CRLF & _
"hre-ik11.jpg" & @CRLF & _
"hre-ik13.jpg" & @CRLF & _
"hre-ik14.jpg" & @CRLF & _
"hre-ik15.jpg" & @CRLF & _
"hre-ik16.jpg" & @CRLF & _
"hre-ik18.jpg" & @CRLF & _
"hre-ik2.jpg" & @CRLF & _
"hre-ik20.jpg" & @CRLF & _
"hre-ik22.jpg" & @CRLF & _
"hre-ik23.jpg" & @CRLF & _
"hre-ik27.jpg" & @CRLF & _
"hre-ik31.jpg" & @CRLF & _
"hre-ik33.jpg" & @CRLF & _
"hre-ik4.jpg" & @CRLF & _
"hre-ik5.jpg" & @CRLF & _
"hre-ik9.jpg" & @CRLF & _
"hre-ikm1.jpg" & @CRLF & _
"hre-ikm3.jpg" & @CRLF & _
"hre-klalrs.jpg" & @CRLF & _
"hre-ls2.jpg" & @CRLF & _
"hre-ls26.jpg" & @CRLF & _
"hre-ls28.jpg" & @CRLF & _
"hre-ls32.jpg" & @CRLF & _
"hre-ls36.jpg" & @CRLF & _
"hre-otsaik.jpg" & @CRLF & _
"hre-shaag_1.jpg" & @CRLF & _
"hre-smm.s_1.jpg" & @CRLF & _
"hre-smm.s_4.jpg" & @CRLF & _
"hrm-ik.jpg" & @CRLF & _
"hrm-sm26.jpg" & @CRLF & _
"hrm-sm28.jpg" & @CRLF & _
"hrm-sm32.s_2.jpg" & @CRLF & _
"hrm-sm33.s_1.jpg" & @CRLF & _
"hrm-sm37.s_1.jpg" & @CRLF & _
"hrm-sm41.jpg" & @CRLF & _
"hrr-ik3.jpg" & @CRLF & _
"hrr-ik5.jpg" & @CRLF & _
"hrr-sm43.jpg" & @CRLF & _
"hrr-sm52.jpg" & @CRLF & _
"hrr-sm59.jpg" & @CRLF & _
"hrr-sm66yomt.jpg" & @CRLF & _
"hrr-sm69.jpg" & @CRLF & _
"hrr-sm79.jpg" & @CRLF & _
"htz-tzemtoc_1.jpg"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH)
Local $aFullArray[0]
For $i = 0 To UBound($aArray) -1
_ArrayConcatenate($aFullArray, $aArray[$i])
Next
$aArray = $aFullArray
; Present the entire match result
_ArrayDisplay($aArray, "Result")
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm