`common`: add partial regex support (#12808)
* move string_find_partial_stop & string_ends_with to common
* add common_regex (supports partial matches)
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* Update common/regex-partial.cpp
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* Update common/regex-partial.cpp
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* Update common/regex-partial.h
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* partial regex: add missing iterator end checks
* string utils: use string_views
* direct throw to avoid ggml.h include
* regex-partial: replace missed ggml_asserts
---------
Co-authored-by: ochafik <ochafik@google.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
