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Add API for accessing command-line arguments.

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- Add process module with Process class.
- Add "arguments" and "allArguments" methods.
- Docs for same.
- Support passing additional arguments to command line.
- Add "--help" support to command line.
This commit is contained in:
Bob Nystrom
2016-01-22 07:57:26 -08:00
parent 860220869a
commit 71e2458a6c
14 changed files with 211 additions and 4 deletions
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1
doc/site/modules/index.markdown
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@ -44,5 +44,6 @@ applications that want to embed Wren.
[libuv]: http://libuv.org
* [io](io)
* [process](process)
* [scheduler](scheduler)
* [timer](timer)

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doc/site/modules/process/index.markdown Normal file
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@ -0,0 +1,5 @@
^title Module "process"
The process module exposes a single class for working with operating processes.
* [Process](process.html)

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doc/site/modules/process/process.markdown Normal file
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^title Process Class
The Process class lets you work with operating processes, including the
currently running one.
## Static Methods
### **allArguments**
The list of command-line arguments that were passed when the Wren process was
spawned. This includes the Wren executable itself, the path to the file being
run (if any), and any other options passed to Wren itself.
If you run:
:::bash
$ wren file.wren arg
This returns:
:::wren
System.print(Process.allArguments) //> ["wren", "file.wren", "arg"]
### **arguments**
The list of command-line arguments that were passed to your program when the
Wren process was spawned. This does not include arguments handled by Wren
itself.
If you run:
:::bash
$ wren file.wren arg
This returns:
:::wren
System.print(Process.arguments) //> ["arg"]

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doc/site/modules/process/template.html Normal file
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@ -0,0 +1,74 @@
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<title>{title} &ndash; Wren</title>
<link rel="stylesheet" type="text/css" href="../../style.css" />
<link href='//fonts.googleapis.com/css?family=Source+Sans+Pro:400,700,400italic,700italic|Source+Code+Pro:400|Lato:400|Sanchez:400italic,400' rel='stylesheet' type='text/css'>
<!-- Tell mobile browsers we're optimized for them and they don't need to crop
the viewport. -->
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
</head>
<body id="top" class="module">
<header>
<div class="page">
<div class="main-column">
<h1><a href="../../">wren</a></h1>
<h2>a classy little scripting language</h2>
</div>
</div>
</header>
<div class="page">
<nav class="big">
<ul>
<li><a href="../">Modules</a></li>
<li><a href="./">process</a></li>
</ul>
<section>
<h2>process classes</h2>
<ul>
<li><a href="process.html">Process</a></li>
</ul>
</section>
</nav>
<nav class="small">
<table>
<tr>
<td><a href="../">Modules</a></td>
<td><a href="./">process</a></td>
</tr>
<tr>
<td colspan="2"><h2>process classes</h2></td>
</tr>
<tr>
<td>
<ul>
<li><a href="process.html">Process</a></li>
</ul>
</td>
<td>
<ul>
</ul>
</td>
</tr>
</table>
</nav>
<main>
<h1>{title}</h1>
{html}
</main>
</div>
<footer>
<div class="page">
<div class="main-column">
<p>Wren lives
<a href="https://github.com/munificent/wren">on GitHub</a>
&mdash; Made with &#x2764; by
<a href="http://journal.stuffwithstuff.com/">Bob Nystrom</a> and
<a href="https://github.com/munificent/wren/blob/master/AUTHORS">friends</a>.
</p>
<div class="main-column">
</div>
</footer>
</body>
</html>

2
doc/site/modules/template.html
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@ -37,6 +37,7 @@
<h2>cli</h2>
<ul>
<li><a href="io">io</a></li>
<li><a href="process">process</a></li>
<li><a href="scheduler">scheduler</a></li>
<li><a href="timer">timer</a></li>
</ul>
@ -64,6 +65,7 @@
<td>
<ul>
<li><a href="io">io</a></li>
<li><a href="process">process</a></li>
<li><a href="scheduler">scheduler</a></li>
<li><a href="timer">timer</a></li>
</ul>