## = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
## This is a self-contained R script generated from an RSP document.
## It may be evaluated using source() as is.
## = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

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## Local RSP utility functions
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## RSP metadata function
.rmeta <- list(
)

rmeta <- function(...) {
  args <- list(...)
  if (length(args) == 0) return(.rmeta)
  names <- names(args)
  if (length(names) > 0) {
    for (name in names) .rmeta[[name]] <<- args[[name]]
  } else {
    names <- unlist(args, use.names=FALSE)
    if (length(names) == 1) .rmeta[[names]] else .rmeta[names]
  }
}

## Look up 'base' function once (faster)
if (getRversion() < "2.15.0") {
  .base_paste <- base::paste
  .base_paste0 <- function(...) .base_paste(..., sep="")
} else {
  .base_paste0 <- base::paste0
}
.base_cat <- base::cat

## RSP output function
.rout <- function(x) .base_cat(.base_paste0(x))

## RSP output function for inline RSP constructs
.rout0 <- function(x) .base_cat(rpaste(x))

## The output of inline RSP constructs is controlled by
## generic function rpaste().
rpaste <- function(...) UseMethod("rpaste")

setInlineRsp <- function(class, fun, envir=parent.frame()) {
  name <- sprintf("rpaste.%s", class)
  assign(name, fun, envir=envir)
  ## FIXME: How to register an S3 method at run-time? /HB 2018-04-06
  ## registerS3method("rpaste", class = class, method = name, envir = envir)
}

## The default is to coerce to character and collapse without
## a separator.  It is possible to override the default in an
## RSP code expression.
setInlineRsp("default", function(x, ...) .base_paste0(x, collapse=""))

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## RSP source code script [BEGIN]
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.rout("Page size: a4paper\n\n# Attribute values\n\n## Regular quotation marks\na=[abc]\na=[abc]\n\n### Empty values\na=[]\na=[]\n\n### Mixed quotation marks\na=[\"abc\"]\na=['abc']\n\n### Escaping quotation marks\na=[\\'abc]\na=[abc\\']\na=[\\\"abc\\\"]\na=[\\'abc\\']\n\n## Paired symbols of any kind\na=[abc]\na=[abc]\na=[abc]\n\n## Paired brackets\n\n### Single paired brackets\na=[abc]\na=[abc]\na=[abc]\na=[abc]\n\n### Multiple paired brackets\na=[abc]\na=[abc]\na=[abc]\na=[abc]\n\n### Lots of paired brackets\na=[abc]\n\n### Escaping closing bracket\na=[abc\\}]\na=[abc\\}]\na=[abc\\>]\n\n### Empty values\na=[]\na=[]\na=[]\na=[]\n")
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## RSP source code script [END]
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