\. matches the character . literally (case sensitive)
bubu matches the characters bubu literally (case sensitive)
\s*
matches any whitespace character (equal to [\r\n\t\f\v ])* Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
{ matches the character { literally (case sensitive)
.*?
matches any character (except for line terminators)Line terminator(s) are \n
*? Quantifier — Matches between zero and unlimited times, as few times as possible, expanding as needed (lazy)
} matches the character } literally (case sensitive)
g modifier: global. All matches (don't return after first match)
m modifier: multi line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)