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- (Seemingly) accidental placement of a character meant that the backticks weren't picked up and displayed nicely.
- Everywhere you refer to 'Hy', it has a capital 'h'. Here it did not.
Fixed up minor grammar issue in one sentence
Fixed minor inconsistency with Python and Hy code
- Added variable assignment before code example
The `if` form now supports elif clauses.
It works like `cond` but without the implicit `do`.
The old `if` is now `if*`
variadic lif now supports "ellif" clauses.
Update if-no-waste compiler to use `if*` properly.
(Sometimes one character is all it takes.)
document if
reword truthiness
As part of the Grand Language Cleanup, a few examples in the tutorial
could be simplified:
* The --init-- function of the defclass example does not need an
explicit None anymore.
* The apply example in the Hy<->Python interop section can use a
keyword instead of a string in the last part.
This perhaps closes#971.
Signed-off-by: Csilla Nagyne Martinak <csilla@csillger.hu>
Adds a short (require) example, along with a few words on why macros can't be imported.
Closes#966.
Signed-off-by: Csilla Nagyne Martinak <csilla@csillger.hu>
This changes with syntax from (with [[x (expr)] (expr)] ...) to (with
[x (expr) (expr)] ...). Should have no ill side effects apart from the
syntax change.
Closes#852.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
This changes let to use a flat list of symbol-value pairs instead of a
vector of vectors. One side effect is that (let [[a 1] z]) is not
expressible now, and one will explicitly need to set a nil value for z,
such as: (let [a 1 z nil]).
Closes#713.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
apply now mangles strings and keywords according to the Hy mangling
rules (by using the same function, now imported from
hy.lex.parser). With this change, if the dict passed to apply has
keywords, strings or quoted symbols, they'll get mangled, to turn them
into proper keys.
This only works for the cases where the keys are directly in the apply
params. A previously deffed dict, or key through a variable will not be
mangled.
This closes#219.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Re-indent `fib` examples to match that in original blog post - "Indentation shall be two spaces, except where matching the indentation of the previous line"
Fixed up the documentation language here and there, related to the alias
removals in previous commits.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
defclass now has a new syntax:
(defclass Name [BaseList]
[property value
property value] ;; optional
(defn method [self]
self.property))
Anything after the optional property list (which will be translated to a
setv within the class context) will be added to the class body. This
allows one to have side effects and complex expressions within the class
definition.
As a side effect, defining methods is much more friendly now!
Closes#850.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
xor with more than two input parameters is not well defined and people
have different expectations on how it should behave. Avoid confusion by
sticking with two parameters only.
Added xor to complement and, or, not operators. Standard python
falsey/truthy semantics are followed. This implementation works for
two or more parameters.
The `with-decorator` special form is not the most ergonomic—this commit
introduces a new builtin `#@` reader macro that expands to an invocation
of `with-decorator`. To support this, `reader_macroexpand` is made to
also look in the default `None` namespace, in imitation of how
regular (non-reader) macros defined in hy.core are looked up. The
docstring of `hy.macros.reader` is also edited slightly for accuracy.
This in the matter of issue #856.
This code is heavily, *heavily* based off of Guillermo Vaya
(willyfrog)'s work... instead of defining its own keyword arg though, it
uses the "standard" :kwarg type, which is the main difference from
willyfrog's original branch.
Included tests and some documentation in the tutorial.
Also documented "apply" separately as an example of reproducing
*args and **kwargs.
- Inline code is written using ``double backticks``
- Italicized text uses *asterisks* rather than `single backticks`
- Function parameters are italicized rather than written as inline code
- Standardized capitalization of Hy, Lisp(s), and Python.
- Added periods to the end of list items.
- Use inline code blocks for inline code.
- Stripped trailing whitespace.
- Other miscellaneous grammatical changes.
A CONTRIBUTING.rst is added to the root of the repo, as Github
automatically recognizes this for incoming PRs
(ref: https://github.com/blog/1184-contributing-guidelines)
Most of the information is directly borrowed from the existing hacking
docs, which is restructured to refer to this file instead for
contribution guidelines
As a result:
* functions such as `nth` should work correctly on iterators;
* `nth` will raise `IndexError` (in a fashion consistent with `get`)
when the index is out of bounds;
* `take`, etc. will raise `ValueError` instead of returning
an ambiguous value if the index is negative;
* `map`, `zip`, `range`, `input`, `filter` work the same way (Py3k one)
on both Python 2 and 3 (see #523 and #331).
The yield-from that existed previously wasn't actually implementing the
full complexity of "yield from":
http://legacy.python.org/dev/peps/pep-0380/#formal-semantics
... this includes passing along errors, and many other things.
Also removes the yield-from backport macro, since it does not seem
possible at present to conditionally build macros.
Thus, there is no longer yield-from on pre-python-3.3 systems.
Includes updated docs and tests to reflect all this.
Example:
(defmain [&rest args]
(print "now we're having a fun time!")
(print args))
Which outputs:
$ hy test.hy
now we're having a fun time!
(['test.hy'],)
Includes documentation and tests.
supports Hy code.
All code-blocks in the documentation have been changed from
clojure to hy.
Also added docs/make.bat for Windows, so the top-level docs
target now works on Windows as well.
* hy/core/language.hy: Adding a simple `identity` function that returns
the argument supplied to it
* docs/language/core.rst: Updated docs with identity function
For the --spy commmand line option, it currently says '''Print equivalent Hy code...'''. Now, I haven't actually gotten around to installing Hy on my computer yet, so I haven't had a chance to test this out to make sure, but from the looks of the code example, it looks as though it is printing out the equivalent Python code of the executed Hy code, not the other way around. This would certainly make more sense. As such, I have changed the word 'Hy' to 'Python' so that the documentation more accurately reflects what (one assumes) is going on.
Sometimes it is better to start with the false condition, sometimes that
makes the code clearer. For that, the (if-not) macro, which simply
reverses the order of the condition blocks, can be of great use.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
In the same vein as defmacro-alias, this implements defn-alias /
defun-alias, which does essentially the same thing as defmacro-alias,
but for functions.
Signed-off-by: Gergely Nagy <algernon@balabit.hu>
