Disable also Visual Studio warning C4275 (std::exception used as base class in dll-interface class) when building as DLL and JSONCPP_DISABLE_DLL_INTERFACE_WARNING is defined.

Fixes #1249.

We should automate this, but for now we can at least update:

    make -f dev.makefile update-version
    make -f dev.makefile dox
    # Then, go to jsoncpp-doc repo, add, and push.

* https://github.com/open-source-parsers/jsoncpp-docs/issues/2

Also add two newlines

(rebased from `aaronfranke/formatting`)

resolves #1220
Co-authored-by: Aaron Franke <arnfranke@yahoo.com>

* Fix a precision bug of valueToString, prevent to give an error result on input of wanted precision 0 and a double value which end of zero before decimal point ,such as 1230.01,12300.1;
Add test cases for double valueToString with precision 0;

* Delete a test case with platform differences in the previous commit

* Fix clang-format.

* Fix clang-format!
Co-authored-by: lilei <dlilei@126.com>

* ENH: Prevent cmake in source builds

Building directly inside the root of the source tree
can cause problems where the build intermediate files
overwrite or conflict with the intended source code
files.

This modification identifies this problem and
issues failure messages and suggestions to over
come the problem with more robust build suggestion.
Co-authored-by: Jordan Bayles <jophba@chromium.org>

* Fix clang-tidy warnings
Signed-off-by: Marcel Opprecht <marcel.opprecht@scandit.com>

* Fixup/clang-format
Co-authored-by: Marcel Opprecht <marcel.opprecht@scandit.com>
Co-authored-by: Jordan Bayles <jophba@chromium.org>

Try meson/ninja from pypi

This lets us simplify linux a little.

However, we still want to test cmake, so there is only so much we
can simplify.

For OSX, we still need `clang-format` from homebrew.

* Add PYTHONUSERBASE/bin to PATH for linux

Fixes: #1224

Not all distributions provide Python as python3 and as Meson already depends on 3.5+ just use what Meson uses.
References: https://mesonbuild.com/Getting-meson.html
https://mesonbuild.com/Python-module.html#find_installation

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

Fix #1197 

* BUILD_TYPE corresponds to Release/Debug
   but LIB_TYPE corresponds to shared/static.

* Add support to build shared, static and object lib at the same time.

This patch adds an explicit ctor with a std::nullptr_t argument, that is `delete`-d. This keeps Json::Value from exposing a coding error when automatically promoted to a const char* type.

* avoid isprint

`std::isprint` is locale-specific and the JSON-spec is not.
In particular, isprint('\t') is true in Windows CP1252.

Has bitten others, e.g. https://github.com/laurikari/tre/issues/64



Fixes #1187

* semicolon (rookie mistake!)

* Windows tab escape testing with custom locale (#1190)
Co-authored-by: Nikolay Baklicharov <thestorm.nik@gmail.com>

* avoid isprint

`std::isprint` is locale-specific and the JSON-spec is not.
In particular, isprint('\t') is true in Windows CP1252.

Has bitten others, e.g. https://github.com/laurikari/tre/issues/64

Fixes #1187

* semicolon (rookie mistake!)

This patch fixes a fuzzing bug by resolving a bad fallthrough in the
setComment logic.

The result is that we get a proper error instead of an assert, making
the library friendlier to use and less likely to cause issue for
consumers.

See related Chromium project bug:
https://bugs.chromium.org/p/chromium/issues/detail?id=989851

Issue: 1182

* Fix heap-buffer-overflow in json_reader

* Escape control chars even if emitting UTF8

See #1176
Fixes #1175

* review comments

* fix test by stopping early enough to punt on utf8-input.

* [clang-tidy] change functions to static

Found with readability-convert-member-functions-to-static
Signed-off-by: Rosen Penev <rosenp@gmail.com>

* optimize JsonWriter::validate #1171

* do the same for json_reader
Signed-off-by: Rosen Penev <rosenp@gmail.com>

* use std::any_of

Also simplified two loops.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Co-authored-by: Billy Donahue <billy.donahue@gmail.com>

The `./` is needed before `vcpkg install jsoncpp` when installing with PowerShell.

* update README

* add dota17 to AUTHORS list

Improve CMake correctness and handling

This is already covered by the toplevel CMake, which also serves to
provide a consistent minimum version.

Commit aebc7faa added version checks for CMake compatibility. In reality,
only the add_compile_definitions need the check - add_compile_options
itself has been supported since 3.0. Tested and confirmed built
successfully with CMake 3.8.0.

EXTRA_CXX_FLAGS is never defined, making this a noop. Further,
COMPILE_OPTIONS is invalid to set as a DIRECTORY property.