R/zzz.R

In brranching: Fetch 'Phylogenies' from Many Sources

mssg <- function(v, ...) if (v) message(...)

try_default <- function(expr, default, quiet = FALSE){
  result <- default
  if (quiet) {
    tryCatch(result <- expr, error = function(e) {
    })
  }
  else {
    try(result <- expr)
  }
  result
}

failwith <- function(default = NULL, f, quiet = FALSE){
  f <- match.fun(f)
  function(...) try_default(f(...), default, quiet = quiet)
}

traits_capwords <- function(s, strict = FALSE, onlyfirst = FALSE) {
  cap <- function(s) {
    paste(toupper(substring(s, 1, 1)), {
      s <- substring(s,2)
      if (strict) tolower(s) else s
    }, sep = "", collapse = " ")
  }
  if (!onlyfirst) {
    sapply(strsplit(s, split = " "), cap, USE.NAMES = !is.null(names(s)))
  } else {
    sapply(s, function(x) {
      paste(toupper(substring(x, 1, 1)),
            tolower(substring(x, 2)),
            sep = "", collapse = " ")
    }, USE.NAMES = FALSE)
  }
}

cpt <- function(l) Filter(Negate(is.null), l)

strmatch <- function(x, y) regmatches(x, regexpr(y, x))

tryfail <- function(default = NULL, f, quiet = FALSE){
  f <- match.fun(f)
  function(...) trydefault(f(...), default, quiet = quiet)
}

trydefault <- function(expr, default, quiet = FALSE){
  result <- default
  if (quiet) {
    tryCatch(result <- expr, error = function(e) {
    })
  }
  else {
    try(result <- expr)
  }
  result
}

assert <- function(x, y) {
  if (!is.null(x)) {
    if (!class(x) %in% y) {
      stop(deparse(substitute(x)), " must be of class ",
           paste0(y, collapse = ", "), call. = FALSE)
    }
  }
}