Regular Expressions 101

Group 1(^|[^\d.\n])

1st Alternative^

^start of line

2nd Alternative[^\d.\n]

Negated Character Class[^\d.\n]

\da digit

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\na line-feed (newline) character (ASCII 10)

\ban ASCII word boundary

\d+a digit, repeated at least once

\ban ASCII word boundary

Negative Lookahead(?!\.\d)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\da digit

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.

Search reference

Regular Expression

(^|[^\d.\n])\b\d+\b(?!\.\d)

New

= INT
123
+333
-5

= FLOAT
1334.455
.323
-323.323
+.2
-.34