Module tr 

Functions

complement

Parse a tr character set string into a Vec of expanded characters.

delete

delete_mmap

Delete from mmap’d byte slice. Uses parallel processing + SIMD memchr for maximum throughput.

delete_squeeze

delete_squeeze_mmap

Delete + squeeze from mmap’d byte slice.

expand_set2

Expand SET2 to match SET1 length for translation. If SET2 has [c*] repeats, fill them. Otherwise repeat last char.

parse_set

Parse a SET string into expanded bytes.

squeeze

squeeze_mmap

Squeeze from mmap’d byte slice. Uses a two-pass approach: find runs of squeezable bytes with memchr, then copy non-squeezed content in bulk.

translate

translate_mmap

Translate bytes from an mmap’d byte slice — zero syscall reads. Uses SIMD AVX2 for range-delta patterns (e.g., a-z → A-Z). For large data: parallel translation with rayon + single write_all syscall. For small data: sequential chunked processing.

translate_squeeze

translate_squeeze_mmap

Translate + squeeze from mmap’d byte slice. For large data: parallel translate with rayon, then sequential squeeze + write. For small data: sequential translate + squeeze in-place.