Regular Expressions 101

Explanation

Pro

Non-Capturing Group(?:^|, *)

1st Alternative^

^start of line

2nd Alternative, *

,the literal , (44₁₀ / 54₈ / 2C₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Group key(?<key>[a-z]+)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Group value(?<value>[^\r\n,"]+|"[^\r\n"]+"?)

1st Alternative[^\r\n,"]+

Negated Character Class[^\r\n,"]+

+matches at least one character outside the set below:

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative"[^\r\n"]+"?

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^\r\n"]+

+matches at least one character outside the set below:

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

"the literal " (34₁₀ / 42₈ / 22₁₆)

"?optionally matches the literal " (34₁₀ / 42₈ / 22₁₆)

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

26 tokens

Regular Expression

(?:^|, *)(?<key>[a-z]+) *= *(?<value>[^\r\n,"]+|"[^\r\n"]+"?)

New

Include="All Violations", CheckType=MaxTrans
MetricName = PlacedInstances, PlacedOnly = 1
CheckType=Hold, Include="reg2reg,in2reg,in2out,reg2out"
CheckType=Setup, Include="reg2reg,in2reg,in2out,reg2out

Substitution

Include="All Violations", CheckType=MaxTrans
MetricName = PlacedInstances, PlacedOnly = 1
CheckType=Hold, Include="reg2reg,in2reg,in2out,reg2out"
CheckType=Setup, Include="reg2reg,in2reg,in2out,reg2out