Template:Leading-number/doc
From Pittsburgh Streets
The {{leading-number}} template extracts a leading number from a string.
Usage examples and test cases
{{leading-number}}→{{leading-number|}}→{{leading-number|1}}→ 1{{leading-number|123}}→ 123{{leading-number|1a}}→ 1{{leading-number|1a2b}}→ 1{{leading-number|123abc}}→ 123{{leading-number|1 2 3}}→ 1{{leading-number|abc}}→{{leading-number|abc123}}→{{leading-number|1=2}}→ 2{{leading-number|1=2=3}}→ 2
