java - Which regular expression or pattern should be used to grab following contents from the text file? -

i need split text starting "9=dexter" upto next "9=dexter". how write pattern regex in java. using end of line doesnt works since phrase merged previouse phrase line.

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4271=01023=461336=3346=0273=22:27:23.040279=2269=055=usd/mxn270=27413.07271=01023=196336=3346=0273=22:27:23.040279=0269=055=usd/mxn270=27393.88271=420000001023=445336=3346=1273=22:27:23.0408722=0279=2269=055=usd/mxn270=27370.76271=01023=701336=3346=0273=22:27:23.047279=2269=055=usd/mxn270=27414.74271=01023=174336=3346=0273=22:27:23.047279=0269=055=usd/mxn270=27418.51271=410000001023=128336=3346=1273=22:27:23.0478722=0279=2269=055=usd/mxn270=27407.91271=01023=267336=3346=0273=22:27:23.047279=1269=055=usd/mxn270=27371.75271=850000001023=691336=3346=2273=22:27:23.0478722=0279=2269=055=usd/mxn270=27392.26271=01023=464336=3346=0273=22:27:23.047279=0269=055=usd/mxn270=27379.5271=470000001023=606336=3346=1273=22:27:23.0478722=0279=2269=055=usd/mxn270=27372.2271=01023=685336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27382.86271=430000001023=566336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27388.84271=01023=495336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27427.92271=440000001023=22336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27394.39271=01023=438336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27413.33271=440000001023=194336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27428.59271=01023=9336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27399.7271=410000001023=375336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27362.95271=01023=815336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27362.65271=470000001023=820336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27387.39271=01023=510336=3346=0273=22:27:23.048279=2269=055=usd/mxn270=27370.5271=01023=702336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27421.64271=450000001023=91336=3346=1273=22:27:23.0488722=0279=0269=055=usd/mxn270=27379.76271=470000001023=604336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27384.65271=01023=533336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27393.78271=430000001023=449336=3346=1273=22:27:23.0488722=0279=0269=055=usd/mxn270=27427.43271=460000001023=26336=3346=1273=22:27:23.0488722=0279=0269=055=usd/mxn270=27367.2271=470000001023=759336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27364.08271=01023=797336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27370.92271=480000001023=702336=3346=1273=22:27:23.0488722=0279=0269=055=usd/mxn270=27363.19271=400000001023=813336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27363.46271=01023=810336=3346=0273=22:27:23.048279=0269=055=usd/mxn270=27407.56271=470000001023=272336=3346=1273=22:27:23.0488722=0279=0269=055=usd/mxn270=27393.97271=460000001023=448336=3346=1273=22:27:23.0488722=0279=2269=055=usd/mxn270=27403.04271=01023=337336=3346=0273=22:27:23.048279=2269=055=usd/mxn270=27413.94271=01023=188336=3346=0273=22:27:23.048279=2269=055=usd/mxn270=27428.66271=01023=8336=3346=0273=22:27:23.048279=2269=055=usd/mxn270=27406.51271=01023=282336=3346=0273=22:27:23.048279=2269=055=usd/mxn270=27368.62271=01023=741336=3346=0273=22:27:23.048279=1269=055=usd/mxn270=27403.45271=900000001023=331336=3346=2273=22:27:23.0488722=0279=0269=055=usd/mxn270=27387.94271=470000001023=505336=3346=1273=22:27:23.0488722=01023=590336=3346=0273=22:27:23.243279=0269=155=usd/mxn270=27638.8271=470000001023=115336=3346=1273=22:27:23.2438722=0279=1269=155=usd/mxn270=27632.43271=400000001023=189336=3346=1273=22:27:23.2438722=0279=0269=155=usd/mxn270=27647.52271=430000001023=23336=3346=1273=22:27:23.2438722=0279=2269=155=usd/mxn270=27622.85271=01023=299336=3346=0273=22:27:23.243279=0269=155=usd/mxn270=27624.18271=460000001023=274336=3346=1273=22:27:23.2438722=0279=2269=155=usd/mxn270=27610.29271=01023=465336=3346=0273=22:27:23.243279=0269=155=usd/mxn270=27626.95271=440000001023=242336=3346=1273=22:27:23.2438722=0279=1269=155=usd/mxn270=27648.18271=460000001023=12336=3346=1273=22:27:23.2448722=0279=0269=155=usd/mxn270=27621.89271=420000001023=316336=3346=1273=22:27:23.2448722=0279=2269=155=usd/mxn270=27628.57271=01023=229336=3346=0273=22:27:23.244279=0269=155=usd/mxn270=27636.79271=410000001023=142336=3346=1273=22:27:23.2448722=0279=2269=155=usd/mxn270=27637.38271=01023=133336=3346=0273=22:27:23.244279=0269=155=usd/mxn270=27602.75271=400000001023=565336=3346=1273=22:27:23.2448722=0279=0269=155=usd/mxn270=27620.37271=440000001023=338336=3346=1273=22:27:23.2448722=0279=2269=155=usd/mxn270=27630.68271=01023=209336=3346=0273=22:27:23.244279=0269=155=usd/mxn270=27636.13271=850000001023=150336=3346=2273=22:27:23.2448722=0279=1269=155=usd/mxn270=27610.2271=400000001023=468336=3346=1273=22:27:23.2448722=0279=1269=155=usd/mxn270=27624.31271=480000001023=271336=3346=1273=22:27:23.2448722=0279=2269=155=usd/mxn270=27605.29271=01023=532336=3346=0273=22:27:23.244279=1269=155=usd/mxn270=27601.37271=920000001023=583336=3346=2273=22:27:23.2448722=0279=2269=155=usd/mxn270=27635.6271=01023=158336=3346=0273=22:27:23.244279=1269=155=usd/mxn270=27601.6271=890000001023=579336=3346=2273=22:27:23.2448722=0279=2269=155=usd/mxn270=27602.71271=01023=565336=3346=0273=22:27:23.244279=0269=155=usd/mxn270=27600.74271=430000001023=591336=3346=1273=22:27:23.2448722=0279=1269=155=usd/mxn270=27623.63271=400000001023=284336=3346=1273=22:27:23.3238722=0279=0269=155=usd/mxn270=27602.66271=400000001023=566336=3346=1273=22:27:23.3238722=010=012 132157:8473:out 20130408-22:27:59.611 : 9=dexter.1.19=13213035=x49=parfx56=c3_user134=847352=20130408-22:27:59.611262=aquru2d00000002268=1509279=2269=055=eur/chf270=27379.5271=01023=598336=3346=0273=22:27:23.084279=0269=055=eur/chf270=27396.49271=440000001023=414336=3346=1273=22:27:23.0848722=0279=2269=055=eur/chf270=27404.86271=01023=305336=3346=0273=22:27:23.085279=0269=055=eur/chf270=27374.86271=400000001023=668336=3346=1273=22:27:23.0858722=0279=2269=055=eur/chf270=27416.14271=01023=174336=3346=0273=22:27:23.085279=2269=055=eur/chf270=27411.65271=01023=233336=3346=0273=22:27:23.085279=0269=055=eur/chf270=27363.95271=440000001023=808336=3346=1273=22:27:23.0858722=0279=2269=055=eur/chf270=27408.47271=01023=262336=3346=0273=22:27:23.098279=0269=055=eur/chf270=27400.23271=410000001023=371336=3346=1273=22:27:23.098 

heres simple regex it:

9=dexter((?s:.)*?)((?=9=dexter)|$)

basically capture group ((?s:.)*?) between 9=dexter or end of file ($)

string regex = "9=dexter((?s:.)*?)((?=9=dexter)|$)"; string text = "9=dexterhello9=dexterworld\nnewline9=dexterfoo9=dexterbar";  pattern pattern = pattern.compile(regex); matcher m = pattern.matcher(text); while (m.find()) {     string s = m.group(1);     system.out.println(":"+s); } 

output:

:hello :world new line :foo :bar