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janssonr 0.1.2

Resubmission after CRAN’s review of 0.1.1. DESCRIPTION only; no code changed.

• Authors@R now lists every author and copyright holder of the bundled Jansson sources, not just Jansson’s author: Petri Lehtinen (ctb, cph), Basile Starynkevitch (ctb, cph: memory.c), Graeme Smecher (ctb, cph: pack_unpack.c), Sean Bright (ctb, cph: version.c), David M. Gay (ctb) and Lucent Technologies (cph) for dtoa.c, and Bob Jenkins (ctb) for the public-domain lookup3.h. A Copyright field points at the new inst/COPYRIGHTS, which records the per-file statements and license terms.
• NA and NaN in the Description are no longer single-quoted; CRAN reserves those quotes for software names.

janssonr 0.1.1

Resubmission after CRAN’s incoming pretest. Every finding was in the bundled Jansson sources, which compile only when no system library is present: the configuration CRAN’s machines use, and the one our own checks were not exercising.

• The bundled Jansson no longer references sprintf anywhere. The decimal separator now comes from localeconv() instead of printing 1.0 into a three-byte buffer, and the exponent in jsonp_dtostr() is written digit by digit. Substituting snprintf is not enough here: gcc folds an snprintf whose output it can prove fits back into sprintf, so the object still referenced it with no sprintf in the source. Encoded output is unchanged, verified byte-for-byte over 1039 doubles, 1009 of them in exponent form.
• The two snprintf calls in the bundled load.c bound their conversions with explicit precisions, so gcc 16 can prove the trailing literal is never truncated, and %p in the bundled value.c takes a const void *.
• configure no longer uses command -v, flagged as a possible bashism.
• DESCRIPTION describes the system/bundled arrangement accurately.
• New tools/cran-check.sh reproduces CRAN’s Debian leg (bundled Jansson, newest gcc, fails on WARNINGs). CI runs it, and every check leg now fails on a WARNING rather than printing it and passing.

janssonr 0.1.0

First CRAN release.

• configure falls back to compiling the bundled Jansson 2.15.1 when no usable system libjansson (>= 2.11) is found; CRAN’s macOS builders ship none. The system library is still preferred when present, and JANSSONR_VENDOR=1 (via --configure-vars) forces the bundled copy. A system jansson older than 2.11 now selects the bundled copy instead of failing the install; explicit INCLUDE_DIR/LIB_DIR that do not yield a usable jansson remain a hard error.
• The hand-written private configs for the bundled sources moved out of src/jansson/ into src/config-win/ and the new src/config-unix/ (a config next to the sources would shadow the -I selection via jansson_private.h’s quoted include).
• The apt repository under docs/ no longer reaches the source tarball (.Rbuildignore).

janssonr 0.0.1.3

• Stable error taxonomy: integer-form overflow beyond long long (12345678901234567890) now reports "integer_precision" like the 2^53 refusal, instead of leaking jansson’s "numeric_overflow"; that code is reserved for real-form overflow (1e999). Classified from the numeric token at the error position in the input, never from jansson’s message text. Lexical integer overflow carries source coordinates and an NA path; the post-parse 2^53 refusal carries NA coordinates and an RFC 6901 pointer.

janssonr 0.0.1.2

• Windows support: Rtools bundles no jansson, so Makevars.win compiles Jansson 2.15.1 sources vendored under src/jansson/ (MIT, Petri Lehtinen; cph added). Unix builds still link the system library. OS_type: unix dropped.

janssonr 0.0.1.1

• Wording: integer literals beyond 2^53 are refused for being outside the safe-integer range (within which a double represents every integer exactly), not as individually unrepresentable; the error message and metadata now say so.
• tools/valgrind.sh shows the installation log when the temp install fails instead of discarding it.

janssonr 0.0.1

• Initial version: from_json() and to_json(), an R-safe profile of RFC 8259 backed by the system Jansson library (>= 2.11); needs R >= 4.4 (verified in a container; 4.4 predates ANY_ATTRIB, covered by a version shim).
• The integer exactness guarantee is scoped to integer literals: number literals with a fraction or exponent use ordinary correctly rounded double conversion (documented and pinned).
• -0 encodes as -0.0 so every finite double, signed zero included, round-trips bit-identically.
• Parser rejects malformed input, trailing content, duplicate keys at any depth, invalid UTF-8, NUL escapes, reals overflowing double, and integer literals whose magnitude exceeds 2^53 (the safe-integer range of a double); errors are classed conditions with source coordinates.
• Encoder writes compact UTF-8 JSON in insertion order, spells integral doubles as integers, and refuses values with no faithful JSON representation.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.