Does d in regex mean a digit

Question

I found that in 123   d matches 1 and 3 but not 2  I was wondering if  d matches a digit satisfying what kind of requirement  I am talking about Python style regex    Regular expression plugin in Gedit is using Python style regex  I created a text file with its content being   123   Only 1 and 3 are matched by the regex  d  2 is not   Generally for a sequence of digit numbers without other characters in between  only the odd order digits are matches  and the even order digits are not  For example in 12345  the matches are 1  3 and 5

User · Answer

0-9  is not always equivalent to  d   In python3   0-9  matches only 0123456789 characters  while  d matches  0-9  and other digit characters  for example Eastern Arabic numerals

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d matches any single digit in most regex grammar styles  including python  Regex Reference

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In Python-style regex   d matches any individual digit  If you re seeing something that doesn t seem to do that  please provide the full regex you re using  as opposed to just describing that one particular symbol    gt  gt  gt  import re  gt  gt  gt  re match r  d    3    lt  sre SRE Match object at 0x02155B80 gt   gt  gt  gt  re match r  d    2    lt  sre SRE Match object at 0x02155BB8 gt   gt  gt  gt  re match r  d    1    lt  sre SRE Match object at 0x02155B80 gt

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d 3  matches any sequence of three digits in Java

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Info regarding   NET   C       Decimal digit character   d    d matches any decimal digit  It is equivalent to the  p Nd  regular expression pattern  which includes the standard decimal digits 0-9 as well as the decimal digits of a number of other character sets       If ECMAScript-compliant behavior is specified   d is equivalent to  0-9   For information on ECMAScript regular expressions  see the  ECMAScript Matching Behavior  section in Regular Expression Options    Info  https   docs microsoft com en-us dotnet standard base-types character-classes-in-regular-expressions decimal-digit-character-d

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This is just a guess  but I think your editor actually matches every single digit     1 2 3     but only odd matches are highlighted  to distinguish it from the case when the whole 123 string is matched   Most regex consoles highlight contiguous matches with different colors  but due to the plugin settings  terminal limitations or for some other reason  only every other group might be highlighted in your case

[python] Does "\d" in regex mean a digit?

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