Module escape 

RFC 5545 §3.3.11 TEXT value escape handling.

Typed TEXT fields (SUMMARY, DESCRIPTION, individual CATEGORIES items, etc.) carry the following escape sequences on the wire:

wire	meaning
\\	backslash
\;	semicolon
\,	comma
\n or \N	newline (LF)

On parse we decode; on format we re-encode. Per ADR-018, RawProperty.value stays raw — escapes are only interpreted for fields the typed model understands and re-emits.

Functions

decode_text

Decode a single TEXT value into a Rust String, interpreting the escape sequences above. Unknown escape sequences (\X for X not in the recognized set) pass through with the backslash preserved, so a future spec evolution can decide their meaning without a corrupting round-trip in the meantime.

encode_text

Encode a Rust string for the wire, escaping the four reserved characters that would otherwise be interpreted as structure.

join_text_list

Encode an item list into a single TEXT value, comma-joined with each item internally escaped.

split_text_list

Split a multi-value TEXT property’s raw wire value into individual decoded items, respecting \, as a literal comma inside an item.