}
`swank:simple-completions` <- function(slimeConnection, sldbState, prefix, package) {
- ## fails multiply if prefix contains regexp metacharacters
- matches <- apropos(sprintf("^%s", prefix), ignore.case=FALSE)
+ literal2rx <- function(string) {
+ ## list of ERE metacharacters from ?regexp
+ gsub("([.\\|()[{^$*+?])", "\\\\\\1", string)
+ }
+ matches <- apropos(sprintf("^%s", literal2rx(prefix)), ignore.case=FALSE)
nmatches <- length(matches)
if(nmatches == 0) {
list(list(), "")
} else {
longest <- matches[order(nchar(matches))][1]
- while(length(grep(sprintf("^%s", longest), matches)) < nmatches) {
+ while(length(grep(sprintf("^%s", literal2rx(longest)), matches)) < nmatches) {
longest <- substr(longest, 1, nchar(longest)-1)
}
list(as.list(matches), longest)