1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
dynlex <- function() {
setContentType("text/html")
listEnclosures <- function(env=NULL){
empty <- environmentName(emptyenv())
if (!is.null(env)) e <- env
else e <- parent.frame();
n <- environmentName(e);
i <- 0
while (n != empty){
if (n == '') n <- attributes(e)$name[1]
cat('ENV:',i,n,'------------------------------\n');
vars <- ls(envir=e)
if (length(vars) > 10)
cat('\t',vars[1:10],'....\n')
else
cat('\t',vars,'\n')
e <- parent.env(e)
n <- environmentName(e)
i <- i + 1
}
}
listFrames <- function(){
f <- sys.frames();
len <- length(f) - 1 ;
if (len < 1) return(invisible());
cat("in listFrames\n")
for ( i in len:1 ){
cat('FRAME:',len-i,'----------------\n')
vars <- ls(envir=f[[i]])
if (length(vars) > 10)
cat('\t',vars[1:10],'....\n')
else
cat('\t',vars,'\n')
}
}
cat("<HTML> <BODY> <H1>Call Stack</H1> <pre>")
listFrames()
cat("</pre> <H1>Enclosures</H1> <pre>")
listEnclosures(sys.frame(sys.nframe()))
cat("</pre> ")
cat("returning",OK,"</BODY> </HTML>")
OK
}
|
