### latest version of the GNU General Public Licence is available at
### <http://www.gnu.org/licenses/gpl.txt>.
+### KLUDGE: this assumes that we're being sourced with chdir=TRUE.
+### (If not, `swank:swank-require` will work under the circumstances
+### that it used to work anyway -- i.e. the working directory is the
+### swankr directory)
+swankrPath <- getwd()
+
swank <- function(port=4005) {
acceptConnections(port, FALSE)
}
startSwank <- function(portFile) {
- acceptConnections(FALSE, portFile)
+ acceptConnections(4005, portFile)
}
acceptConnections <- function(port, portFile) {
+ if(portFile != FALSE) {
+ f <- file(portFile, open="w+")
+ cat(port, file=f)
+ close(f)
+ }
s <- socketConnection(host="localhost", server=TRUE, port=port, open="r+b")
on.exit(close(s))
serve(s)
sendToEmacs <- function(slimeConnection, obj) {
io <- slimeConnection$io
payload <- writeSexpToString(obj)
- writeChar(sprintf("%06x", nchar(payload)), io, eos=NULL)
+ writeChar(sprintf("%06x", nchar(payload, type="bytes")), io, eos=NULL)
writeChar(payload, io, eos=NULL)
flush(io)
}
} else if(grepl("^[0-9]+\\.[0-9]+$", token)) {
as.double(token)
} else {
- as.name(token)
+ name <- as.name(token)
+ if(name == quote(t)) {
+ TRUE
+ } else if(name == quote(nil)) {
+ FALSE
+ } else {
+ name
+ }
}
}
readToken <- function() {
`swank:connection-info` <- function (slimeConnection, sldbState) {
list(quote(`:pid`), Sys.getpid(),
quote(`:package`), list(quote(`:name`), "R", quote(`:prompt`), "R> "),
+ quote(`:encoding`), list(quote(`:coding-systems`), list("utf-8-unix")),
quote(`:lisp-implementation`), list(quote(`:type`), "R",
quote(`:name`), "R",
quote(`:version`), paste(R.version$major, R.version$minor, sep=".")))
`swank:swank-require` <- function (slimeConnection, sldbState, contribs) {
for(contrib in contribs) {
- filename <- sprintf("%s.R", as.character(contrib))
+ filename <- sprintf("%s/%s.R", swankrPath, as.character(contrib))
if(file.exists(filename)) {
source(filename)
}
`swank:listener-eval` <- function(slimeConnection, sldbState, string) {
## O how ugly
string <- gsub("#\\.\\(swank:lookup-presented-object-or-lose([^)]*)\\)", ".(`swank:lookup-presented-object-or-lose`(slimeConnection, sldbState,\\1))", string)
- expr <- parse(text=string)[[1]]
- ## O maybe this is even uglier
- lookedup <- do.call("bquote", list(expr))
- value <- eval(lookedup, envir = globalenv())
- sendReplResultFunction(slimeConnection, value)
+ for(expr in parse(text=string)) {
+ expr <- expr
+ ## O maybe this is even uglier
+ lookedup <- do.call("bquote", list(expr))
+ tmp <- withVisible(eval(lookedup, envir = globalenv()))
+ if(tmp$visible) {
+ sendReplResultFunction(slimeConnection, tmp$value)
+ }
+ }
list()
}
`swank:frame-locals-and-catch-tags` <- function(slimeConnection, sldbState, index) {
frame <- sldbState$frames[[1+index]]
objs <- ls(envir=frame)
+ if(identical(frame, globalenv())) {
+ objs <- c()
+ }
list(lapply(objs, function(name) { list(quote(`:name`), name,
quote(`:id`), 0,
- quote(`:value`), printToString(eval(parse(text=name), envir=frame))) }),
+ quote(`:value`),
+ tryCatch({
+ printToString(eval(parse(text=name), envir=frame))
+ }, error=function(c) {
+ sprintf("error printing object")
+ }))}),
list())
}
`swank:simple-completions` <- function(slimeConnection, sldbState, prefix, package) {
- ## fails multiply if prefix contains regexp metacharacters
- matches <- apropos(sprintf("^%s", prefix), ignore.case=FALSE)
+ literal2rx <- function(string) {
+ ## list of ERE metacharacters from ?regexp
+ gsub("([.\\|()[{^$*+?])", "\\\\\\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)
`swank:interactive-eval` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME interactive evaluation request",
- value <- eval(parse(text=string), envir=globalenv()))
- prin1ToString(value)
+ tmp <- withVisible(eval(parse(text=string), envir=globalenv())))
+ if(tmp$visible) {
+ prin1ToString(tmp$value)
+ } else {
+ "# invisible value"
+ }
}
`swank:eval-and-grab-output` <- function(slimeConnection, sldbState, string) {
withRetryRestart("retry SLIME interactive evaluation request",
{ output <-
- capture.output(value <- eval(parse(text=string),
- envir=globalenv())) })
+ capture.output(tmp <- withVisible(eval(parse(text=string),
+ envir=globalenv()))) })
output <- paste(output, sep="", collapse="\n")
- list(output, prin1ToString(value))
+ if(tmp$visible) {
+ list(output, prin1ToString(tmp$value))
+ } else {
+ list(output, "# invisible value")
+ }
+}
+
+`swank:interactive-eval-region` <- function(slimeConnection, sldbState, string) {
+ withRetryRestart("retry SLIME interactive evaluation request",
+ tmp <- withVisible(eval(parse(text=string), envir=globalenv())))
+ if(tmp$visible) {
+ prin1ToString(tmp$value)
+ } else {
+ "# invisible value"
+ }
}
`swank:find-definitions-for-emacs` <- function(slimeConnection, sldbState, string) {
}
`swank:load-file` <- function(slimeConnection, sldbState, filename) {
- source(filename, local=FALSE)
+ source(filename, local=FALSE, keep.source=TRUE)
TRUE
}
`swank:compile-file-for-emacs` <- function(slimeConnection, sldbState, filename, loadp, ...) {
- times <- system.time(parse(filename))
+ times <- system.time(parse(filename, srcfile=srcfile(filename)))
+ if(loadp) {
+ ## KLUDGE: inelegant, but works. It might be more in the spirit
+ ## of things to keep the result of the parse above around to
+ ## evaluate.
+ `swank:load-file`(slimeConnection, sldbState, filename)
+ }
list(quote(`:compilation-result`), list(), TRUE, times[3], substitute(loadp), filename)
}
+
+`swank:quit-lisp` <- function(slimeConnection, sldbState) {
+ quit()
+}
projects / swankr.git / blobdiff