Aliases: code_highlight
Keywords:
### ** Examples code_highlight(deparse(ls))
[1] "function (name, pos = -1L, envir = as.environment(pos), all.names = FALSE, " [2] " pattern, sorted = TRUE) " [3] "{" [4] " if (!missing(name)) {" [5] " pos <- tryCatch(name, error = function(e) e)" [6] " if (inherits(pos, \"error\")) {" [7] " name <- substitute(name)" [8] " if (!is.character(name)) " [9] " name <- deparse(name)" [10] " warning(gettextf(\"%s converted to character string\", " [11] " sQuote(name)), domain = NA)" [12] " pos <- name" [13] " }" [14] " }" [15] " all.names <- .Internal(ls(envir, all.names, sorted))" [16] " if (!missing(pattern)) {" [17] " if ((ll <- length(grep(\"[\", pattern, fixed = TRUE))) && " [18] " ll != length(grep(\"]\", pattern, fixed = TRUE))) {" [19] " if (pattern == \"[\") {" [20] " pattern <- \"\\\\[\"" [21] " warning(\"replaced regular expression pattern '[' by '\\\\\\\\['\")" [22] " }" [23] " else if (length(grep(\"[^\\\\\\\\]\\\\[<-\", pattern))) {" [24] " pattern <- sub(\"\\\\[<-\", \"\\\\\\\\\\\\[<-\", pattern)" [25] " warning(\"replaced '[<-' by '\\\\\\\\[<-' in regular expression pattern\")" [26] " }" [27] " }" [28] " grep(pattern, all.names, value = TRUE)" [29] " }" [30] " else all.names" [31] "}"
cat(code_highlight(deparse(ls)), sep = "\n")
function (name, pos = -1L, envir = as.environment(pos), all.names = FALSE, pattern, sorted = TRUE) { if (!missing(name)) { pos <- tryCatch(name, error = function(e) e) if (inherits(pos, "error")) { name <- substitute(name) if (!is.character(name)) name <- deparse(name) warning(gettextf("%s converted to character string", sQuote(name)), domain = NA) pos <- name } } all.names <- .Internal(ls(envir, all.names, sorted)) if (!missing(pattern)) { if ((ll <- length(grep("[", pattern, fixed = TRUE))) && ll != length(grep("]", pattern, fixed = TRUE))) { if (pattern == "[") { pattern <- "\\[" warning("replaced regular expression pattern '[' by '\\\\['") } else if (length(grep("[^\\\\]\\[<-", pattern))) { pattern <- sub("\\[<-", "\\\\\\[<-", pattern) warning("replaced '[<-' by '\\\\[<-' in regular expression pattern") } } grep(pattern, all.names, value = TRUE) } else all.names }