regex101: DOI extraction

Explanation

Pro

Group 1(http:\/\/dx.doi.org\/10|10| DOI: 10|DOI:10)

1st Alternativehttp:\/\/dx.doi.org\/10

http:the literal text http: (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

dxthe literal text dx (case insensitive)

.any character (except for line terminators)

doithe literal text doi (case insensitive)

.any character (except for line terminators)

orgthe literal text org (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

10the literal text 10

2nd Alternative10

10the literal text 10

3rd Alternative DOI: 10

DOI: 10the literal text DOI: 10 (case insensitive)

4th AlternativeDOI:10

DOI:10the literal text DOI:10 (case insensitive)

.any character (except for line terminators)

\d{4,9}a digit, repeated between 4 and 9 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[-._;()\/:0-9]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Global pattern flags

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

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

Quick Reference

25 tokens

Regular Expression

(http:\/\/dx.doi.org\/10|10| DOI: 10|DOI:10).\d{4,9}\/[-._;()\/:0-9]+

Small Group Research2014, Vol. 45(6) 671 Œ703© The Author(s) 2014Reprints and permissions:sagepub.com/journalsPermissions.nav DOI: 10.1177/1046496414552285sgr.sagepub.comArticleA Conceptual Review of Emergent State 
Measurement: Current 
Problems, Future 
SolutionsChris W. Coultas1, Tripp Driskell2,  C. Shawn Burke1, and Eduardo Salas1AbstractTeam research increasingly incorporates emergent states as an integral 
mediator between team inputs and outcomes. In conjunction with this, we 

have witnessed a proliferation and fragmentation of measurement techniques 

associated with emergent states. This inconsistency in measurement presents 
a problem for scientists and practitioners alike. For the scientist, it becomes 
difficult to better understand the nature and effects of various emergent 

states on team processes and outcomes. For the practitioner, it complicates 
the process of measurement development, selection, and implementation. 
To address these issues, we review the literature