Module yaml 

YAML format backend. Reads via the noyalib Value view; mutates via the lossless cst::Document editor so comments, ordering, styles, and untouched source bytes are preserved.

Functions

append_array_item_preserving

Append an item to an existing block YAML sequence using the CST’s indentation-aware editor.

load

remove_array_item_preserving

Remove one item from a YAML sequence by numeric index.

save

set_preserving

Replace one scalar in a YAML source document while retaining all unrelated source bytes. Escaped keys, keyed-list routes, and collection replacement are deliberately rejected until they have a lossless CST path adapter.

unset_preserving

Remove an existing YAML entry through the lossless CST editor.