Extracting Numbers from text - rFronteddu/general_wiki GitHub Wiki

When: Natural language input

Techniques:

• Regex: -?\d+: matches an integer number, optionally negative.
  • -? → an optional minus sign
  • ? means “zero or one”
  • \d+ → one or more digits (0–9)
  • +means “at least one”
• Character scanning

Practice Case

"There are -12 apples and 30 oranges"