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yaml 2.3.12

• Fixes for C API compliance.

• Switched from CHANGELOG to NEWS.md.

yaml 2.3.10

• Added necessary includes for stdio.h and stddef.h.

yaml 2.3.9

• Edited documentation.

yaml 2.3.8

• Added verbatim_logical helper function.

yaml 2.3.7

• clang deprecated sprintf. Changed in included clib to snprintf.

yaml 2.3.6

• C deprecated functions with no prototypes, these were added.

yaml 2.3.5

• Patch to put back in libyaml modifications that as.yaml relied on.

yaml 2.3.4

• Added read_yaml parameter readLines.warn that defaults to TRUE for overriding warnings about incomplete files.

yaml 2.3.3

• Fixed Bug #99, support for BUILTINSXP functions as handlers.

yaml 2.3.2

• Removed some code that got reverted in the libyaml 0.2.5 merge at 2.2.4 release.

yaml 2.3.1

• Added omap support for output using proper tag.

yaml 2.3.0

• Made eval.expr default to FALSE.

yaml 2.2.4

• Updated libyaml code from 0.2.5.

yaml 2.2.3

• Added attribute quote support for strings (#72, #109).

yaml 2.2.2

• Changed maintainer from Jeremy Stephens to Shawn Garbett.
• Moved Git repository to https://github.com/vubiostat/r-yaml.

yaml 2.2.1

• Added merge.precedence option to yaml.load.
• Fixed improper handling of explicit !bool tag (reported by Luke Goodsell).
• Fixed memory issue flagged by valgrind.
• Updated LibYAML to 0.2.2.
• Fixed some -Wall warnings to appease CRAN.

yaml 2.2.0

• Added custom handlers to as.yaml.
• Added processing of ‘verbatim’ class in as.yaml.
• Added processing of ‘tag’ class in as.yaml.
• Changed examples/tests to write to tempfiles to appease CRAN.
• Fixed as.yaml representation of very small negative floating point numbers (reported by Ryan Welch).
• Properly ignore a map key that would override a key from a merged map (reported by Bradley Saul).
• Gracefully fail compilation if GCC fast-math flag is enabled (reported by Dmitriy Selivanov).
• Switched from testthat to RUnit for unit testing since RUnit has fewer dependencies and does not require compilation.

yaml 2.1.19

• Fixed unserialization issues with int#base60 tag (reported by Nancy Irisarri).
• Added eval.expr option to yaml.load function.
• Fixed issue with error.label argument (patch by Gregory R. Warnes).
• Fixed a few garbage collection protection issues.

yaml 2.1.18

• Fixed protection stack bugs (reported by Rich FitzJohn).

yaml 2.1.17

• Rewrote parsing functionality using pairlists instead of a self-managed protection stack in order to appease rchk.
• Use MARK_NOT_MUTABLE instead of SET_NAMED, which is deprecated.
• Show warning when duplicate map key is ignored during a merge.

yaml 2.1.16

• Fixed error checking bug regarding number conversions.

yaml 2.1.15

• Improved handling of UTF-8 encoded files.
• Added Github URL to description file.
• Added read_yaml and write_yaml convenience functions.
• Added error.label parameter to yaml.load and yaml.load_file.
• Recognize floating point numbers without leading 0.
• Fixed nested list issue.
• Show warning for integer/real overflow.

yaml 2.1.14

• Marked character input/output as UTF-8 (patch submitted by Yihui Xie).
• Updated LibYAML to 0.1.7.

yaml 2.1.13

• Fixed integer overflow issue.
• Explicitly cast pointers from char to yaml_char_t, and vice versa.

yaml 2.1.12

• Properly emit factors with NAs (bug submitted by Jenny Bryan).
• Updated LibYAML to 0.1.6.

yaml 2.1.11

• Updated LibYAML to 0.1.5.

yaml 2.1.10

• Properly escape names in data frames and lists (bug submitted by Paul Hodor).
• Removed extra digit in Windows when formatting exponential numbers.

yaml 2.1.9

• CRAN maintainers changed memcpy to memmove.

yaml 2.1.8

• Properly emit and consume numeric values in scientific notation (bug submitted by Gergely Daróczi).
• Added ‘precision’ argument to as.yaml to control how many digits are printed when emitting.

yaml 2.1.7

• Properly emit and consume special values: Inf, -Inf, NaN, NA, TRUE, and FALSE (bug submitted by Richard Cotton).
  • Inf is emitted as .inf.
  • -Inf as -.inf.
  • NaN as .nan.
  • TRUE is now emitted as yes, and FALSE as no.
• Because the YAML specification does not specify how to handle NA values, the various NA types are emitted as follows:
  • NA: .na
  • NA_real_: .na.real
  • NA_integer_: .na.integer
  • NA_character_: .na.character

yaml 2.1.6

• Added unicode option to as.yaml() (bug submissions by Gergely Daróczi and Aleksandar Blagotić).

yaml 2.1.5

• Fixed yaml.load() ignoring explicit quotes around strings (bug submitted by Jonas Zimmermann).
• Fixed as.yaml() not quoting strings that need to be quoted.

yaml 2.1.4

• Replaced lang5() function for backwards compatibility with R < 2.12.0 (bug submitted by Philipp Hofmann).

yaml 2.1.3

• Fixed as.yaml() converting numeric vectors incorrectly (bug submitted by Markus Göker).

yaml 2.1.2

• Fixed multiple anchor bug (bug submitted by apshaar).

yaml 2.1.1

• Removed redundant yaml-package help page.
• Fixed solaris compilation error.
• Removed printf/assert symbols from the compiled library.

yaml 2.1.0

• Rewrote as.yaml in C (using libyaml’s emitter).
• Removed the pre.indent option to as.yaml, mainly because libyaml doesn’t support pre-indention and I’m not sure the option is useful anymore; will revisit if requested.

yaml 2.0.0

• Switched from the Syck parser to the libyaml (0.1.4) parser.
• Sequences of sequences no longer collapse when they contain the same type; ex: yaml.load("[1, [2, 3], 4]") returns list(1L, c(2L, 3L), 4L).

yaml 1.2.0

• Added support for loading R expressions (using the !expr tag).
• Added multiline string support.
• Added support for nameless lists in as.yaml (converts to a sequence).

yaml 1.1.0

• Added support for omaps.
• Added yaml.load_file function to read from files/connections.
• Using format instead of as.character now in as.yaml.default.

yaml 1.0.2

• Fixed as.yaml bug where a nested empty list wasn’t converted correctly.

yaml 1.0.1

• yaml.load will now load empty documents (bug submitted by Jeff Klingner).
• as.yaml will return '[]' for empty objects (patch submitted by Brendan O’Connor).
• as.yaml will now create valid YAML for a list that contains a list of length one (bug submitted by Gabor Grothendieck).

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They may not be fully stable and should be used with caution. We make no claims about them.