Regular Expressions 101

Pro

images/stimuli/the literal text images/stimuli/ (case sensitive)

\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match

\d+a digit, repeated at least once

Positive Lookahead(?=\.png)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

pngthe literal text png (case sensitive)

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

images/stimuli/\K\d+(?=\.png)

New

<img src='images/stimuli/32.png' style='width:341.38790035587186px;height: 265px;'><img src='images/stimuli/36.png' style='width:341.38790035587186px;height: 265px;'>

Substitution

<img src='images/stimuli/32.png' style='width:341.38790035587186px;height: 265px;'><img src='images/stimuli/36.png' style='width:341.38790035587186px;height: 265px;'>