Regular Expressions 101

Explanation
Pro

Positive Lookbehind(?<=\{)

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 1(.*?)

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

Positive Lookahead(?=\};.)

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

.any character (except for line terminators)

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

(?<=\{)(.*?)(?=\};.)

New

[1]={['x']=198;['y']=74;['width']=99;['height']=199;};[2]={['x']=82;['y']=116;['width']=82;['height']=164;};

[1]={['x']=198;['y']=74;['width']=99;['height']=199;};[2]={['x']=82;['y']=116;['width']=82;['height']=164;};