[Pitch] Extend pattern matching to extract groups from substring matches

[xwu (Xiaodi Wu)]

[Pitch] Strongly Typed Regex Captures

Below is an updated pitch. You can also find the full document here. Strongly Typed Regex Captures Authors: Richard Wei, Kyle Macomber Revision history v1 Initial pitch. v2 Includes entire match in Regex's generic parameter. Fixes Quantification and Alternation capture types to be consistent with traditional back reference numbering. Introduction Capturing groups are a commonly used component of regular expressions as they allow the programmer to extract information from matched …