On Sat, Jun 27, 2020 at 05:16:34PM -0700, Alex Harsanyi wrote: > Looking at the source for `read-xml`, it seems to be using `list->string` > in several places. That is, it reads characters one-by-one and constructs > a list by appending a character to the end of it, than calls `list->string` > to produce the string. I suspect read-xml could be made faster by using > `string-append` in these cases.
So you would be copying and reallocating strings instead of cons-cells? The way to make that eliminate all that allocation is to implement a likely big enough mutable string buffer and insert characters (likely one at at time if I read you correctly) without allocating new storage each time (unless you've made the buffer too smal; in which case, double its size). Then allocate the right amount of space for a string once and copy the buffer into it when the string has been completely read in. -- hendrik -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/20200628190739.tpjrkilrf5eq546w%40topoi.pooq.com.
