Regular Expressions 101

Explanation

Pro

<td><a href="the literal text <td><a href=" (case insensitive)

Group 1(http:\/\/adi.sunyconnect.suny.edu:4610\/F\/\?request=\d{6,6}&func=find-b&find_code=sys&local_base=adi01pub)

http:the literal text http: (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

adithe literal text adi (case insensitive)

.any character (except for line terminators)

sunyconnectthe literal text sunyconnect (case insensitive)

.any character (except for line terminators)

sunythe literal text suny (case insensitive)

.any character (except for line terminators)

edu:4610the literal text edu:4610 (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Fthe literal F (70₁₀ / 106₈ / 46₁₆) (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

request=the literal text request= (case insensitive)

\d{6,6}a digit, repeated exactly 6 times

&func=find-b&find_code=sys&local_base=adi01pubthe literal text &func=find-b&find_code=sys&local_base=adi01pub (case insensitive)

">the literal text ">

Group 2(.*?)

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

<b><br>the literal text <b><br> (case insensitive)

Group 3(.*?)

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

the literal (32₁₀ / 40₈ / 20₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 4(.*?)

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

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

b>the literal text b> (case insensitive)

Global pattern flags

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

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

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Quick Reference

26 tokens

Regular Expression

<td><a href="(http:\/\/adi.sunyconnect.suny.edu:4610\/F\/\?request=\d{6,6}&func=find-b&find_code=sys&local_base=adi01pub)">(.*?)<b><br>(.*?) \/ (.*?)<\/b>

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