The keys which are stored temporarily to a hashtable to make sure that
all object keys are unpacked, were hashed with the object key hashing
function. It is meant to compute hashes for object_key_t values, and
it works incorrectly for plain strings.
Fixed by introducing suitable functions for hashing and comparing
strings for string-keyed hashtables.
- Add a new field position to the json_error_t structure. This is the
position in bytes from the beginning of the input.
- Keep track of line, column and input position in the stream level.
Previously, only line was tracked, and it was in the lexer level, so
this info was not available for UTF-8 decoding errors.
- While at it, refactor tests so that no separate "stripped" tests are
required. json_process is now able to strip whitespace from its
input, and the "valid" and "invalid" test suites now use this to
test both non-stripped and stripped input.
Closes GH-9.
Functions taking va_args are munged to receive arguments of type
'__va_list_tag *'. This patch uses va_copy to coerce them to the expected type
so we don't get compiler errors.
Tested on x86_64, both 32-bit and 64-bit compiles.
Reported-By: Basile Starynkevitch <basile@starynkevitch.net>
Now, by default, unpacking doesn't check that all array and object
items are accessed. The check can be enabled globally by using the
JSON_STRICT flag (formerly JSON_UNPACK_ONLY), or on a per-value basis
by using the new '!' format character. The '*' format character is
still available to disable the global check on a per-value basis.
Expand the pack/unpack API: json_(un)pack is the simple version with
no error output, json_(un)pack_ex has error output and flags,
json_v(un)pack_ex is a va_list version of json_(un)pack_ex.
Implement unpacking flags:
- JSON_UNPACK_ONLY turns off extra validation, i.e. array and object
unpacking doesn't check that all items are unpacked. This is really
just convenience for not adding '*' after each object and array.
- JSON_VALIDATE_ONLY turns off unpacking, i.e. no varargs are expected
and nothing is unpacked.
* By default, json_unpack() now checks that all items of arrays and
objects are unpacked. This is useful for validation.
* Add format specifier '*' to suppress this check for individual
arrays and objects. '*' must appear as the last format specifier
before the closing ']' or '}'.
