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

~
~
gm

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"^\s*\d{1,3}(?:\n(?!\s*\d{1,3}\n).*){4}" test_str = (" تحميل ملف الطباعة تعليمات طباعـــة\n" " 1 / 4 \n" " \n" "Main Report\n" " \n" " 25%\n" " 50%\n" " 75%\n" " 100%\n" " 125%\n" " 150%\n" " 200%\n" " 300%\n" " 400%\n" " تقرير بيانات الطلاب الذين سددوا المصروفات الدراسية\n" " عن طريق منافذ الدفع البنكي 2019-2020 \n" "المديرية \n" "المرحلة\n" ":\n" ":\n" "الإدارة \n" "التبعية\n" ":\n" ":\n" "كود الطالب\n" "جهة الدفع\n" "رقم قومي الطالب\n" "اسم الطالب\n" "اعدادى\n" "رسمى\n" "اسم المدرسة\n" ":\n" "م\n" "مطروح\n" "الحمام\n" "اولاد مسعود الاعدادية المشتركة\n" "الصف\n" ":\n" "الصف الأول\n" " 1\n" " 458316219 \n" " 30709101600371 \n" "ابراهيم وليد ابراهيم ابوالحمد\n" "منافذ فورى\n" " 2\n" " 458361688 \n" " 30702263300318 \n" "احمد ابوالريش فرج عبدالله\n" "منافذ فورى\n" " 3\n" " 458312720 \n" " 30703143300418 \n" "اسلام فتحى محمد ناجى\n" "منافذ فورى\n" " 4\n" " 458790904 \n" " 30606101802299 \n" "اسلام نصار حسين نصار حسين عبد الونيس\n" "منافذ فورى\n" " 5\n" " 458312908 \n" " 30612013300259 \n" "ايمن راضى صالح سلومه\n" "منافذ فورى\n" " 6\n" " 458884564 \n" " 30802203300186 \n" "بسمه محمد ابراهيم ظدم\n" "منافذ فورى\n" " 7\n" " 477625786 \n" " 30708263300235 \n" "بشار نصر الله مصوف السايب\n" "منافذ فورى\n" " 8\n" " 458805339 \n" " 30708203300708 \n" "بشرى محمد عبدالناصر عبدالرؤوف رحمى\n" "منافذ فورى\n" " 9\n" " 458707736 \n" " 30711103300663 \n" "جنات منصور مسعود ابوسيف\n" "منافذ فورى\n" " 10\n" " 458884629 \n" " 30801013303115 \n" "حكيم عبدالقادر فرج قنديل\n" "منافذ فورى\n" " 11\n" " 464285926 \n" " 30801121603028 \n" "روان ابراهيم محمد محمد قطب\n" "منافذ فورى\n" " 12\n" " 459700550 \n" " 30707150204055 \n" "سعيد نوح قوية نصر\n" "منافذ فورى\n" " 13\n" " 458804725 \n" " 30702253300379 \n" "عبدالرحمن ابراهيم عبدالرؤوف رحمى\n" "منافذ فورى\n" " 14\n" " 457185700 \n" " 30702013300096 \n" "عبدالله حسين رضوان يونس\n" "منافذ فورى\n" " 15\n" " 458707614 \n" " 30803083300515 \n" "عبدالناصر خميس محمد عقيل\n" "منافذ فورى\n" " 16\n" " 458312757 \n" " 30707113300427 \n" "عبير على عبدالرؤف رحمى\n" "منافذ فورى\n" " 17\n" " 458361421 \n" " 30711153300478 \n" "على حامد راغب زايد\n" "منافذ فورى\n" " 18\n" " 446292331 \n" " 30605243300073 \n" "فارس عطيه عباس بسيس\n" "منافذ فورى\n" " 19\n" " 463507046 \n" " 30608183300574 \n" "فارس فرج شحات قنديل\n" "منافذ فورى\n" " 20\n" " 458810352 \n" " 30701283300059 \n" "كريم جبريل سليمان غالب\n" "منافذ فورى\n" " 21\n" " 467915100 \n" " 30709161801074 \n" "كريم عاطف عبدالباسط حجازى\n" "منافذ فورى\n" " 22\n" " 458361712 \n" " 30702263302396 \n" "محمد ابوالريش فرج عبدالله\n" "منافذ فورى\n" "2020/06/12\n" "Page 1 of 4\n" "مسئول شئون الطلاب\n" "خاتم \n" "الشعار\n" "مدير المدرسة\n" " 2015© جميع الحقوق محفوظة لمركز معلومات -وزارة التربية والتعليم") matches = re.finditer(regex, test_str, re.MULTILINE) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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 Python, please visit: https://docs.python.org/3/library/re.html