The comments about what this function does were incorrect.
/*
* S_tokeq
- * Tokenize a quoted string passed in as an SV. It finds the next
- * chunk, up to end of string or a backslash. It may make a new
- * SV containing that chunk (if HINT_NEW_STRING is on). It also
- * turns \\ into \.
+ * Turns any \\ into \ in a quoted string passed in in 'sv', returning 'sv',
+ * modified as necessary. However, if HINT_NEW_STRING is on, 'sv' is
+ * unchanged, and a new SV containing the modified input is returned.
*/
STATIC SV *