Nicolas Williams
fe29d3d3fa
Make XPath-like `//a/b` recursive structure traversal easier in jq,
which then becomes:
..|.a?.b?
The `?` operator suppresses errors about . not being an array or object.
The `..` operator is equivalent to calling the new `recurse_down`
built-in, which in turn is equivalent to
recurse(.[]?)
Note that `..a` is not supported; neither is `...a`. That could be add
added, but it doesn't seem worth the trouble of saving the need to type
a '|'.
Documentation
The jq website, manpages and some of the tests are generated from this
directory. The directory holds a Bonsai
website, and the manual is a YAML file in content/3.manual.
To build the documentation (including building the jq manpage), you'll need a working Ruby setup. The easiest way to get one is to install RVM and Ruby 1.9.3 like so:
\curl -L https://get.rvm.io | bash -s stable --ruby=1.9.3
After that finishes installing, you'll need to make sure RVM is on
your path by doing source $HOME/.rvm/scripts/rvm, or just opening a
new shell. See http://rvm.io for more info on RVM.
Once RVM is installed, you can install all the dependencies for jq's
documentation build by running this from the docs directory:
bundle install
When bundle manages to install the dependencies, rerun ./configure
in the jq root directory and then the Makefile will be able to
generate the jq manpage.