Add code block for multi-line comments in the docs.

Clean up some technical debt and add tests

Less heap

Build for Redox on Travis

Fix test with negative numbers

Agustin Chiappe Berrini authored 7 years ago and Michael Aaron Murphy committed 7 years ago

* Make ./examples/run_examples.sh loudly fail

If you do:

```
./examples/run_examples.sh
rm src/types.rs
./examples/run_examples.sh
```

The second run will succeed even though the compilation failed. Fix this
by making the script fail if one of the steps fail.

* and set +e before the for

Agustin Chiappe Berrini authored 7 years ago and Michael Aaron Murphy committed 7 years ago

Rather than performing a lookup for a given builtin command for each statement repeatedly, this will only perform the builtin lookup once when parsing the statement, so that looped blocks will not have to perform repeated future lookups.

Agustin Chiappe Berrini authored 7 years ago and Michael Aaron Murphy committed 7 years ago

* Add escape function

* add unescape function

* add some examples

* address some of the comments

* Address comments

* use own escape function

Documented Builtins

Closes #577

Add a get_array() method to the public API.

Fix string comparisons in documentation

The builtin test command expects `=` for string comparisons, not `-eq`

The IonLibrary interface has been removed, and integrated directly
within the shell's main module.

When expanding arguments, if an argument evaluates to an empty argument,
simply ignore the argument as if it didn't exist.

This will move the readln logic from `shell::binary` into
`shell::binary::readln`.