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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
Processing...

Test String

Substitution
Processing...

Code Generator

Language

Generated Code

import re regex = re.compile(r"([\w_\.]+)=([\-\w_\.]+);", flags=re.MULTILINE) test_str = ("g_MA1=17;\n" "g_MA2=20;\n" "ExtTimeWindowStart=7;\n" "ExtTimeWindowDuration=14;\n" "ExtDayNotToTrade=6;\n" "g_FilterState=0;\n" "g_MAType=3;\n" "g_use_MA_Factor=0;\n" "g_MA_LB_Factor=2;\n" "g_activateMA3=0;\n" "g_MA3=80;\n" "g_activateBBKC=0;\n" "g_BBKCHighVolatility=0;\n" "g_BBKC=10;\n" "g_BBKCThreshold=0.75;\n" "g_BBKCBarsLength=1;\n" "g_activateSNR=1;\n" "g_SNRCycle=0;\n" "g_SNRPeriod=25;\n" "g_SNRLevel=-15;\n" "g_SNRBarsLength=1;\n" "g_activateTI=1;\n" "g_TI_LB=20;\n" "g_MA1_Weight=3;\n" "g_MA2_Weight=2;\n" "g_MA3_Weight=1;\n" "g_MA_TypeTI=3;\n" "g_IsNormalized=1;\n" "g_UpperThreshold=30;\n" "g_LowerThreshold=-30;\n" "g_orderType=0;\n" "g_inversionSwitch=1;\n" "g_barsNumber=3;\n" "g_averageFactor=0;\n" "g_DayLength=1;\n" "g_activateOpposite=1;\n" "g_activateDayTrade=0;\n" "g_activateTradeDuration=0;\n" "g_tradeDurationBars=10;\n" "ExtSlPercent=0.25;") subst = "\\1=\\2\\n\\1,F=0\\n\\1,1=0\\n\\1,2=0\\n\\1,3=0" result = regex.sub(subst, test_str) if result: print(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 Python, please visit: https://docs.python.org/3/library/re.html