Regular Expressions 101

Character Class[\s,]+

+matches at least one character from the set below:

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Group 1(.*?)

.*?any character (except for line terminators), repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Branch Reset Group(?|{([^{}]*)}|(\w+))

1st Alternative{([^{}]*)}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 2([^{}]*)

Negated Character Class[^{}]*

*matches any number of characters outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative(\w+)

Group 2(\w+)

\w+any word character, repeated at least once

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

[\s,]+(.*?)=(?|{([^{}]*)}|(\w+))

Test String
New

@article{Roxas_2011, title={Social Desirability Bias in Survey Research on Sustainable Development in Small Firms: an Exploratory Analysis of Survey Mode Effect}, volume={21}, ISSN={1099-0836}, url={http://dx.doi.org/10.1002/bse.730}, DOI={10.1002/bse.730}, number={4}, journal={Business Strategy and the Environment}, publisher={Wiley}, author={Roxas, Banjo and Lindsay, Val}, year={2011}, month=sep, pages={223\xe2\x80\x93235} }

Regular Expression

Test StringNew

Test String
New