Regular Expressions 101

Pro

Character Class[0-9]

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

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

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Positive Lookahead(?=[0-9])

Character Class[0-9]

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

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

[0-9]\K\((?=[0-9])

New

x1(t) = 1.568(1-t) + 5.145(1-t)**2 + ... (other terms)
x2(t) = 3.347(1-t) + 1.304(1-t)**2 + ...
x3(t) = 7.016(1-t) + 1.901(1-t)**2 + ...
x4(t) = 0.843(1-t) + 5.335(1-t)**2 + ...

Substitution

*(

x1(t) = 1.568(1-t) + 5.145(1-t)**2 + ... (other terms)
x2(t) = 3.347(1-t) + 1.304(1-t)**2 + ...
x3(t) = 7.016(1-t) + 1.901(1-t)**2 + ...
x4(t) = 0.843(1-t) + 5.335(1-t)**2 + ...