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
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • 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
No Match

r"
"
gm

Test String

Code Generator

Language

Generated Code

const regex = new RegExp('(?P<Ano>[2018]+)\\|(?P<Mes>[A-Za-z]+)\\|(?P<RamGrl>[A-Za-z\\s]+)\\|(?P<Suc>[\\w\\s]+)\\|(?P<Ofn>[\\w\\s\\d\\(\\)\\-\\.\\&\\,]+)\\|(?P<Pmt>[\\w\\s\\d\\(\\)\\-\\.\\,\\¥\\*\\%\\&\\Ü\\Ñ]+)\\|(?P<Agente>[\\w\\d\\s\\.\\,\\¥\\¤\\$\\&\\%\\-]+)\\|(?P<Mon>[A-Za-z]+)\\|(?P<SucEmi>[\\w\\s\\.\\-\\(\\)]+)\\|(?P<RamoEmi>[\\w\\s\\.\\/]+)\\|(?P<Poliza>[0-9]+)\\|(?P<FecFinVig>[\\d\\/]+)\\|(?P<Cliente>()|[a-zA-ZÀ-ÖØ-öø-ÿ\\s\\.\\,\\-\\*\\\\'\\%\\d\\&\\¥\\¤\\!\\¡\\+\\`\\´\\#\\(\\)\\;\\€\\"\\­\\¨\\:\\_\\@\\‘\\Ã\\.+]+)\\|(?P<StaMc>[\\w\\d]+)\\|(?P<FecMC>[\\d\\/]+)\\|(?P<NoAPet>[MSX]+)\\|(?P<Renovadas>[\\d]+)\\|(?P<Observaciobnes>(()|[a-zA-ZÀ-ÖØ-öø-ÿ\\d\\s\\.\\,\\:\\+\\(\\)\\¥\\¤\\-\\#\\;\\&\\$\\*\\%\\\\'\\/\\´\\!\\@\\"\\‘\\Ã])+)\\|(?P<Motivo>[S/C]+)\\|(?P<PrimaEmi>[\\-\\d]+)\\|(?P<PrimaCob>[0-9]+)\\|(?P<Siniestros>[\\d\\-]+)\\|(?P<PolizaNva>[0-9]+)\\|(?P<FecRenovacion>[\\d\\/]+)\\|(?P<PrimaDRenov>[0-9]+)\\|(?P<CobranzaDRen>[0-9]+)\\|', 'gm') const str = `2018|Feb|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|DLL|ARMANDO L. PTAN|TURISTAS|1067|17/02/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|368|368|0|0|01/01/2000|0|0| 2018|Feb|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|DLL|ARMANDO L. PTAN|OBLIGATORIO TURISTAS|1067|17/02/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|1|1|0|0|01/01/2000|0|0| 2018|Mar|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|NAL|ARMANDO L. PTAN|MOTOCICLETAS|187|15/03/2018|ALONSO HERNANDEZ ZAZUETA €|R000216|12/03/2018|S|45|POLIZA YA RENOVADA|S/C|901|901|0|216|12/03/2018|797|0| 2018|Mar|AUTOS|MATRIZ|OFICINA MATRIZ|ARMANDO LEON PTACNIK|ARMANDO LEON HERNANDEZ 4684|NAL|ARMANDO L. PTAN|OBLIGATORIO MOTOCICLETAS|187|15/03/2018|ALONSO HERNANDEZ ZAZUETA €|X|01/01/2000|X|45||S/C|14|14|0|0|01/01/2000|0|0| 2018|Jul|AUTOS|MATRIZ|OFICINA MATRIZ|OFICINA MATRIZ|ROQUE ALONSO P Y ASOCIADOS AGENTE DE SEGUROS Y DE FIANZAS SA DE CV 9761|NAL|MATRIZ|SEGURO DE AUTOMOVILES|767608|07/07/2018|GUSTAVO MONTAÑO ALVAREZ|S806612|19/06/2018|X|0|RENOVADA X NUMERO DE SERIE GUSTAVO MONTAÑO ALVAREZ|S/C|13395|11721|0|0|01/01/2000|0|0|`; // Reset `lastIndex` if this regex is defined globally // regex.lastIndex = 0; let m; while ((m = regex.exec(str)) !== null) { // This is necessary to avoid infinite loops with zero-width matches if (m.index === regex.lastIndex) { regex.lastIndex++; } // The result can be accessed through the `m`-variable. m.forEach((match, groupIndex) => { console.log(`Found match, group ${groupIndex}: ${match}`); }); }

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 JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions