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parcr (development version)

parcr 0.5.2

Bug fix

  • Parser zero_or_one() was not greedy, meaning that it sometimes did not parse input that it should be able to parse (see issue #12).

New feature

  • Added the function Ignore() which reads and discards all elements until the end of a vector.

parcr 0.5.1

  • Because of the use of base::isa() this package requires R 4.1 or higher, not R 2.1. This has been corrected in the DESCRIPTION. Running on ubuntu-latest and R 4.1 is checked by CI workflow on Github.
  • Minor corrections and additions to both vignettes.

parcr 0.5.0

  • All function descriptions and documentation thoroughly reviewed and updated.
  • Vignettes reviewed and updated.
  • Published on CRAN

parcr 0.4.5

  • Extended the fasta file example in the vignette by showing the use of %or% to apply alternative parsers. Added a protein sequence fasta file to the data set.
  • Function Parser() was changed and renamed to reporter(). This better reflects its use.

parcr 0.4.4

  • Added (started) Details vignette.
  • Custom error_parser includes line number and line content fields of the element index on which the parser failed.
  • Added function finished() to test for complete consumption of the input by the parser.

parcr 0.4.3

  • print.marker now emits '[]' to make explicit that it differs from a simple list().
  • Export of function failed() to test failure of a parser. Useful in unit testing.

parcr 0.4.2

parcr 0.4.1

  • Correct example in documentation for Parser() function

parcr 0.4.0

  • Marker error messaging implemented and tested. Markers are line numbers (element numbers in a character vector) where the parser fails. In case of alternative parsers like p1 %or% p2 the marker with the largest index value is reported when both parsers fail.

parcr 0.3.3.9000

  • Developing marker error messaging

parcr 0.3.3

  • Again modified exacly(n,p) because, since repeater functions call the same instance of a function, the counter is not reset when this parser is nested in a repeater parser (zero_or_more, etc.). The reset is now performed in the function itself.

parcr 0.3.2

  • Added fastafile example data which is used in the vignette.

parcr 0.3.1

  • Redesigned exactly(n,p) to behave as expected with non-emitting parsers like literal("A") %ret% NULL and eof().

  • Dependencies on packages stringr and methods were removed.

parcr 0.3.0

  • Added function eof() which detects an end of file. With that, the behavior of satisfy(b) and match_s(s) has been modified: they now fail on empty input, regardless of the functions b() and s().

parcr 0.2.5

  • Initial Github submission.