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..printer.. <- TRUE
if(!exists("..types..")) source("types.r")
.pr_list <- function(..., print_readably=TRUE, join="") {
concatl(lapply(list(...),
function(e) .pr_str(e, print_readably)), sep=join)
}
.pr_str <- function(exp, print_readably=TRUE) {
pr <- print_readably
switch(class(exp),
"List"={
data <- paste(lapply(exp, function(e) .pr_str(e, pr)),
sep="", collapse=" ")
paste("(", data, ")", sep="", collapse="")
},
"Vector"={
data <- paste(lapply(exp, function(e) .pr_str(e, pr)),
sep=" ", collapse=" ")
paste("[", data, "]", sep="", collapse="")
},
"character"={
if (print_readably) {
paste("\"",
gsub("\\n", "\\\\n",
gsub("\\\"", "\\\\\"",
gsub("\\\\", "\\\\\\\\", exp))),
"\"", sep="", collapse="")
} else {
exp
}
},
"Symbol"={ exp },
"nil"={ "nil" },
"logical"={ tolower(exp) },
"MalFunc"={
paste("(fn* ", .pr_str(exp$params,TRUE),
" ", .pr_str(exp$ast, FALSE), ")", sep="")
},
"function"={ "<#function>" },
{ toString(exp) })
}
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