Regular Expressions 101

Explanation

Pro

^start of line

Group 1(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,'the literal text ,'

Character Class[\d\w]+

+matches at least one character from the set below:

\da digit

\wany word character

',the literal text ',

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group 2(,(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))|,{,1})*

*repeats the group contents below any number of times:

1st Alternative,(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 3(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,'the literal text ,'

Character Class[\d\w]+

+matches at least one character from the set below:

\da digit

\wany word character

',the literal text ',

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d+a digit, repeated at least once

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative,{,1}

,{,1}the literal text ,{,1}

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

s modifier: single line. Allows a dot to match line terminators

Unit Test Summary

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Quick Reference

25 tokens

Regular Expression

^(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))(,(\(\d+,\d+,'[\d\w]+',\d+,\d+,\d+,\d+,\d+,\d+,\d+\))|,{,1})*$

Unit Tests

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