Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression

/
/
ig

Test String

Code Generator

Generated Code

$re = '/(?:\s*(?=\w+\.|.*as\s+|)(\*|\w+)(?=\s*(?=,|from)))/i'; $str = 'SELECT PAFCODDNE "Cod. gestione" ,PAFTYPE "Tipo" ,PAFFLUSSO "N. flusso" ,PAFNUMERO "N. rata" ,PAFDTSCAD "Data scadenza" ,PAFSTARTF "Data inizio fisc." ,PAFSTOPF "Data fine fisc." ,PAFDSTART "DTREG" "Pafdstart Dtreg " ,PAFDTMORA "Data incasso" ,PAFVALORE "Importo" ,PAFQCAP "Quota capitale" ,PAFQINT "Quota interessi" ,PAFQIND "Quota indicizzazione" ,PAFCAPRES "Capitale residuo" ,PAFVALORECTV "Controvalore" ,PAFQCAPIAS "Quota capitale (IAS)" ,PAFQINTIAS "Quota interessi (IAS)" ,PAFCAPRESIAS "Capitale Residuo (IAS)" ,PAFTIAS "Tasso ias" ,PAFID "Cod. controparte" ,PAFDESC "Tipo flusso" ,PAFCAMBIOM "Cambio" ,PAFCAMBIOF "Cambio Fattura" ,PAFOSCCAMB "Oscillazione cambio espresso" ,PAFCODCESP "Cod. bene" ,PAFPARMAT "Partita" ,PAFMATESERC "Esercizio" ,PAFMATNRMOV "N. movimento" ,PAFDTMAT "Data maturazione" ,PAFDTBATCH "Data prev. fatturazione" ,PAFRIDPROG "Progr. effetto" ,PAFRIDDATA "Data effetto" ,PAFCAMNUM "Numero cambiale" ,CLCRECEIV "Tipo" ,CLCTYPE "Condition type" ,CLCINTPFLUSSIDESCRIZ "Causale" ,CLCSIGLA "Divisa" ,CLCSTSFLU "Stato" ,CLCTPMATDESCRIZ "Status maturazione" ,CLCDESTPRID "Status RID" ,CLCMATURITYDESCRIZ "Scadenza" FROM (SELECT ALIASBASE.CDCMPANY, ALIASBASE.PAFCODCTR, ALIASBASE.PAFDTSCAD, NUMFLUSSO.NUMERO, ALIASBASE.PAFDESC, ALIASBASE.PAFTYPE, ALIASBASE.PAFNATURE, ALIASBASE.PAFRECEIV, ALIASBASE.PAFCAUSAL, ALIASBASE.PAFCODDNE, ALIASBASE.PAFMATURITY, CASE WHEN ALIASBASE.PAFTYPE = \'P\' THEN \'+\' ELSE \'-\' END CLCDESCSEGNO, ALIASBASE.PAFDIVISA, TCCURRENCY.ACRONYM CLCSIGLA, TCCURRENCY.TEDECDIGITS, ALIASBASE.PAFCAMBIOM, ALIASBASE.PAFVALORECTV, ALIASBASE.PAFQCAPCTV, ALIASBASE.PAFQINTCTV, ALIASBASE.PAFCAPRESCTV, ALIASBASE.PAFQCAPIASCTV, ALIASBASE.PAFQINTIASCTV, ALIASBASE.PAFCAPRESIASCTV, ALIASBASE.PAFDTSTOP, ALIASBASE.PAFDSTART, ALIASBASE.PAFDTMORA, ALIASBASE.PAFSTOPF, ALIASBASE.PAFID, ALIASBASE.PAFFLUSSO, ALIASBASE.PAFNUMERO, ALIASBASE.PAFSTARTF, TABDNE.DESCRIZ CLCDNEDESCRIZ, INTTPFLUSSI.DESCRIZ CLCINTPFLUSSIDESCRIZ, SIANAGR.ANADENOM, DECODE(PAFRECEIV, \'F\', \'Finanziario\', \'S\', \'Servizio\', \'O\', \'Altro\', \'M\', \'Mora\') CLCRECEIV, DECODE(PAFTYPE, \'O\', \'Onere\', \'P\', \'Provento\') CLCTYPE, DECODE(PAFNATURE, \'C\', \'Cliente\', \'F\', \'Fornitore\') CLCNATURE, INTOPMATURITY.DESCRIP CLCMATURITYDESCRIZ, ALIASBASE.PAFRIDPROG , ALIASBASE.PAFTIAS, ALIASBASE.PAFCODCESP, SICESPIT.CESRIGA, SIANAIND.INDRAGSIND, SIANAIND.INDLOC, SIANAIND.INDIRIZZO, ALIASBASE.PAFOSCCAMB, ALIASBASE.PAFCAMBIOF, ALIASBASE.PAFPARMAT, ALIASBASE.PAFTPMAT, ALIASBASE.PAFSTSFLU, ALIASBASE.PAFMATESERC, ALIASBASE.PAFMATNRMOV, ALIASBASE.PAFDTMAT, ALIASBASE.PAFDTBATCH, ALIASBASE.PAFTPRID, DECODE(ALIASBASE.PAFTPRID, \'RRIC\', \'Effe o ricevuto\', \'REST\', \'Effe o estra o\', \'RACC\', \'Effe o accreditato\') CLCDESTPRID, ALIASBASE.PAFRIDDATA, DECODE( COALESCE(ALIASBASE.PAFTPMAT,\'0\'), \'0\', \'Non maturato\', \'1\', \'Maturato\') CLCTPMATDESCRIZ, DECODE(ALIASBASE.PAFSTSFLU, \'A\', \'A ivo\', \'C\', \'Ina ivo\', \'S\', \'Sospeso\') CLCSTSFLU, ALIASBASE.PAFFLRECEIPT, ALIASBASE.PAFRECEIPT, ALIASBASE.PAFFAESERC, ALIASBASE.PAFDTFA, ALIASBASE.PAFFANRMOV, ALIASBASE.PAFCODSUB ,ALIASBASE.PAFVALORE, ALIASBASE.PAFQCAP, ALIASBASE.PAFQINT, ALIASBASE.PAFQIND, ALIASBASE.PAFCAPRES, ALIASBASE.PAFQCAPIAS, ALIASBASE.PAFQINTIAS, ALIASBASE.PAFCAPRESIAS, LsGeneric.ControvaloreToStr(\'01\', ALIASBASE.PAFVALORECTV) CLCPAFVALORECTV ,CAST(CASE WHEN ALIASBASE.PAFTYPE = \'P\' THEN 21 ELSE 20 END AS NUMBER(9)) CLCTRIANGOLO ,CAST( CASE WHEN PAFTPMAT IS NOT NULL AND ((RIGPARTITA IS NULL AND PAFNATURE = \'C\') OR ((ALIASBASE.PAFPARMAT IS NULL AND PAFNATURE = \'F\'))) THEN 5 WHEN PAFTPMAT IS NULL THEN 4 WHEN (PAFNATURE = \'C\' AND COALESCE(VISALDIPARTFLUSSI.TOTSPDIV, 0) > ( SELECT COALESCE(ARRPOS, 0 ) FROM TABARROT WHERE TABARROT.CDCMPANY = \'01\' AND TABARROT.CDARROT = \'PAR\' ) ) THEN 7 WHEN (PAFNATURE = \'C\' AND COALESCE(VISALDIPARTFLUSSI.TOTSPDIV, 0) <= (SELECT COALESCE(ARRPOS, 0 ) FROM TABARROT WHERE TABARROT.CDCMPANY = \'01\' AND TABARROT.CDARROT = \'PAR\' ) ) THEN CASE WHEN PAFTPMAT = 0 THEN 4 ELSE 5 END WHEN (PAFNATURE = \'F\' AND ( (SELECT VISALDISIPAFFOR.SALDOFOR FROM VISALDISIPAFFOR WHERE VISALDISIPAFFOR.CDCMPANY = ALIASBASE.CDCMPANY AND VISALDISIPAFFOR.RIGCDANA = ALIASBASE.PAFID AND VISALDISIPAFFOR.FORPARMAT = ALIASBASE.PAFPARMAT) < ( SELECT COALESCE(-ARRNEG, 0 ) FROM TABARROT WHERE TABARROT.CDCMPANY = \'01\' AND TABARROT.CDARROT = \'PAR\') ) ) THEN 7 WHEN (PAFNATURE = \'F\' AND ( (SELECT VISALDISIPAFFOR.SALDOFOR FROM VISALDISIPAFFOR WHERE VISALDISIPAFFOR.CDCMPANY = \'01\' AND VISALDISIPAFFOR.RIGCDANA = ALIASBASE.PAFID AND VISALDISIPAFFOR.FORPARMAT = ALIASBASE.PAFPARMAT) >= (SELECT COALESCE(-ARRNEG, 0 ) FROM TABARROT WHERE TABARROT.CDCMPANY = \'01\' AND TABARROT.CDARROT = \'PAR\' ) ) ) THEN 5 ELSE 5 END AS NUMBER(9)) CLCSEMAFORO, PAFCAMNUM FROM SIPIAFIN ALIASBASE LEFT OUTER JOIN INTTPFLUSSI ON (ALIASBASE.PAFCAUSAL = INTTPFLUSSI.CODICE) LEFT OUTER JOIN TABDNE ON (TABDNE.CDCMPANY = ALIASBASE.CDCMPANY) AND (TABDNE.CDDNE = ALIASBASE.PAFCODDNE) LEFT OUTER JOIN TCCURRENCY ON (ALIASBASE.PAFDIVISA = TCCURRENCY.CDCURRENCY) LEFT JOIN SIANAGR ON ALIASBASE.PAFID = SIANAGR.ANACODANA LEFT OUTER JOIN INTOPMATURITY ON INTOPMATURITY.CODE = ALIASBASE.PAFMATURITY LEFT OUTER JOIN SICESPIT ON (SICESPIT.CDCMPANY = ALIASBASE.CDCMPANY) AND (SICESPIT.CESCODCES = ALIASBASE.PAFCODCESP) LEFT OUTER JOIN SIANAIND ON (ALIASBASE.PAFID = SIANAIND.INDCODANA) AND (ALIASBASE.PAFADDRESS = SIANAIND.INDCODIND) LEFT OUTER JOIN ( SELECT ROWNUM - 1 NUMERO, T1.CDCMPANY, T1.PAFCODCTR, T1.PAFCODSUB, T1.PAFDTSCAD FROM ( SELECT ALIASBASE2.CDCMPANY, ALIASBASE2.PAFCODCTR, ALIASBASE2.PAFCODSUB, ALIASBASE2.PAFDTSCAD FROM SIPIAFIN ALIASBASE2 WHERE (ALIASBASE2.CDCMPANY = UPPER(\'01\')) AND (ALIASBASE2.PAFCODCTR = UPPER(\'177749\')) AND (ALIASBASE2.PAFCODSUB = UPPER(\'002\')) GROUP BY ALIASBASE2.CDCMPANY, ALIASBASE2.PAFCODCTR, ALIASBASE2.PAFCODSUB, ALIASBASE2.PAFDTSCAD ORDER BY ALIASBASE2.PAFDTSCAD )T1 ) NUMFLUSSO ON (ALIASBASE.CDCMPANY = NUMFLUSSO.CDCMPANY) AND (ALIASBASE.PAFCODCTR = NUMFLUSSO.PAFCODCTR) AND (ALIASBASE.PAFDTSCAD = NUMFLUSSO.PAFDTSCAD) AND (ALIASBASE.PAFCODSUB = NUMFLUSSO.PAFCODSUB) LEFT OUTER JOIN SICTRITIVPY ON SICTRITIVPY.CDCMPANY = ALIASBASE.CDCMPANY AND SICTRITIVPY.CONTRACT = ALIASBASE.PAFCODCTR LEFT OUTER JOIN VISALDIPARTFLUSSI ON VISALDIPARTFLUSSI.CDCMPANY = ALIASBASE.CDCMPANY AND VISALDIPARTFLUSSI.RIGCDCTR = ALIASBASE.PAFCODCTR AND VISALDIPARTFLUSSI.RIGCDANA = ALIASBASE.PAFID AND VISALDIPARTFLUSSI.RIGCDDIV = CASE WHEN SICTRITIVPY.INVOICECURR = \'R\' THEN \'EUR\' WHEN SICTRITIVPY.INVOICECURR = \'C\' THEN ALIASBASE.PAFDIVISA END AND VISALDIPARTFLUSSI.RIGPARTITA = ALIASBASE.PAFPARMAT WHERE (ALIASBASE.CDCMPANY = \'01\') AND (ALIASBASE.PAFCODCTR = \'177749\') AND (ALIASBASE.PAFCODSUB = \'002\') AND (PAFNATURE = \'C\') AND (PAFTYPE = \'P\') ORDER BY ALIASBASE.CDCMPANY, ALIASBASE.PAFCODCTR, ALIASBASE.PAFDTSCAD, ALIASBASE.PAFDTMORA, ALIASBASE.PAFNATURE, ALIASBASE.PAFTYPE, ALIASBASE.PAFNUMERO, ALIASBASE.PAFRECEIV, ALIASBASE.PAFMATURITY DESC, ALIASBASE.PAFSTARTF, ALIASBASE.PAFSTOPF , PAFCODCESP)'; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); // Print the entire match result var_dump($matches);

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 PHP, please visit: http://php.net/manual/en/ref.pcre.php