Integers

The following regular expressions can be used for matching integers:

Expression:

\b\d+\b

Description:
Matches integers

Test Matches:

123456
1 2 3 4 5 6
+12346
-12346
123.
.456
1,234.56
123.456
+123.456
-123.456

---

Expression:

(?<!\S)\d++(?!\S)

Description:
Matches integers

Sample Matches:

123456
1 2 3 4 5 6
+12346
-12346
123.
.456
1,234.56
123.456
+123.456
-123.456

---

Expression:

[-+]?\b\d+\b

Description:
Matches integers with an optional sign

Sample Matches:

123456
1 2 3 4 5 6
+123456
-123456
123.
.456
1,234.56
123.456
+123.456
-123.456