labeledLoop: Labeled loop and break

Description Usage Arguments Examples

Description

label %._.% for generates labeled loop. To escape from this loop, replace 'break' with ._.(label). Pseudo-anonymous labeled loop can be generated by .%._.% and break by ._.().

Usage

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  label %._.% statement

  ._.(label = ".")

Arguments

label

label for this loop

statement

statement such as for, while etc.

Examples

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. %._.% for(i in 1:3) {
  foo %._.% for (j in 1:3) {
    orz %._.% for (k in 1:3) {
      print(c(i, j, k))

      if (i == 3 && j == 3 && k == 2) {
        cat("escape from outmost loop\n")
        ._.() # break
      }

      if (i == 2 && j == 2) {
        cat("escape from innermost loop (orz)\n")
        ._.(orz) # break
      }

      if (i == 1 && j == 1 && k == 2) {
        cat("escape from foo\n")
        ._.(foo) # break
      }
    }
  }
}

labeledLoop documentation built on May 1, 2019, 11:56 p.m.