The mingw-w64 runtime expands wildcards, which causes a discrepancy
between `main`'s `argv` (multiple file names) and Windows' `wargv` (a
single wildcard). Use `wmain` to retrieve the wide character args.
Windows regards the `NUL` device as tty, which causes `WriteFile` to
fail (the bytes written pointer cannot be `NULL` in this case). Tweak
the color test to ensure tty is accurate.
Windows 10 supports color output, but it must be explicitly enabled;
ANSICON provides support for other versions. Enable color if either of
those are available. Resolves#1494.
* Set default error code to -4 in main(), Fixes#1142
* fix --exit-code with more than one object in input, Fixes#1139
- Return code 1 or 4 based on last output, not last input.
Allow a continuation on a comment immediately after a shebang to make
this traditional hack possible:
#!/bin/sh
# this next line is ignored by jq \
exec jq -f "$0" "$@"
# jq code follows
But continue only on the first line following a shebang, and only if
it's a comment.
Jason Hood