mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
CoffeeScript 0.9.0
This commit is contained in:
Jeremy Ashkenas
parent
5f2326e911
commit
ff9af83358
23 changed files with 1188 additions and 1163 deletions
|
|
@ -6,64 +6,64 @@ options = parser.parse process.argv
|
|||
</code></pre>
|
||||
|
||||
<p>The first non-option is considered to be the start of the file (and file
|
||||
option) list, and all subsequent arguments are left unparsed.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">exports</span><span class="p">.</span><span class="nx">OptionParser</span> <span class="o">=</span> <span class="nx">class</span> <span class="nx">OptionParser</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>Initialize with a list of valid options, in the form:</p>
|
||||
option) list, and all subsequent arguments are left unparsed.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.OptionParser = </span><span class="nx">class</span> <span class="nx">OptionParser</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>Initialize with a list of valid options, in the form:</p>
|
||||
|
||||
<pre><code>[short-flag, long-flag, description]
|
||||
</code></pre>
|
||||
|
||||
<p>Along with an an optional banner for the usage help.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">constructor: </span><span class="p">(</span><span class="nx">rules</span><span class="p">,</span> <span class="nx">banner</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">@banner</span> <span class="o">=</span> <span class="nx">banner</span>
|
||||
<span class="nx">@rules</span> <span class="o">=</span> <span class="nx">buildRules</span> <span class="nx">rules</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-3">#</a> </div> <p>Parse the list of arguments, populating an <code>options</code> object with all of the
|
||||
<p>Along with an an optional banner for the usage help.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">constructor</span><span class="o">:</span> <span class="p">(</span><span class="nx">rules</span><span class="p">,</span> <span class="nx">banner</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="vi">@banner = </span><span class="nx">banner</span>
|
||||
<span class="vi">@rules = </span><span class="nx">buildRules</span> <span class="nx">rules</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-3">#</a> </div> <p>Parse the list of arguments, populating an <code>options</code> object with all of the
|
||||
specified options, and returning it. <code>options.arguments</code> will be an array
|
||||
containing the remaning non-option arguments. This is a simpler API than
|
||||
many option parsers that allow you to attach callback actions for every
|
||||
flag. Instead, you're responsible for interpreting the options object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">parse: </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">options</span> <span class="o">=</span> <span class="nv">arguments: </span><span class="p">[]</span>
|
||||
<span class="nx">args</span> <span class="o">=</span> <span class="nx">normalizeArguments</span> <span class="nx">args</span>
|
||||
flag. Instead, you're responsible for interpreting the options object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">parse</span><span class="o">:</span> <span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">options = </span><span class="nx">arguments</span><span class="o">:</span> <span class="p">[]</span>
|
||||
<span class="nv">args = </span><span class="nx">normalizeArguments</span> <span class="nx">args</span>
|
||||
<span class="k">for</span> <span class="nx">arg</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">args</span>
|
||||
<span class="nx">isOption</span> <span class="o">=</span> <span class="o">!!</span><span class="p">(</span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)</span> <span class="o">or</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">SHORT_FLAG</span><span class="p">))</span>
|
||||
<span class="nx">matchedRule</span> <span class="o">=</span> <span class="kc">no</span>
|
||||
<span class="nv">isOption = </span><span class="o">!!</span><span class="p">(</span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)</span> <span class="o">or</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">SHORT_FLAG</span><span class="p">))</span>
|
||||
<span class="nv">matchedRule = </span><span class="kc">no</span>
|
||||
<span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
|
||||
<span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">is</span> <span class="nx">arg</span> <span class="o">or</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span> <span class="o">is</span> <span class="nx">arg</span>
|
||||
<span class="nx">options</span><span class="p">[</span><span class="nx">rule</span><span class="p">.</span><span class="nx">name</span><span class="p">]</span> <span class="o">=</span> <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">hasArgument</span> <span class="k">then</span> <span class="nx">args</span><span class="p">[</span><span class="nx">i</span> <span class="o">+=</span> <span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="kc">true</span>
|
||||
<span class="nx">matchedRule</span> <span class="o">=</span> <span class="kc">yes</span>
|
||||
<span class="nv">matchedRule = </span><span class="kc">yes</span>
|
||||
<span class="k">break</span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"unrecognized option: #arg"</span> <span class="k">if</span> <span class="nx">isOption</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">matchedRule</span>
|
||||
<span class="k">if</span> <span class="o">not</span> <span class="nx">isOption</span>
|
||||
<span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span> <span class="o">=</span> <span class="nx">args</span><span class="p">[</span><span class="nx">i</span><span class="p">...</span><span class="nx">args</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
|
||||
<span class="nv">options.arguments = </span><span class="nx">args</span><span class="p">[</span><span class="nx">i</span><span class="p">...</span><span class="nx">args</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
|
||||
<span class="k">break</span>
|
||||
<span class="nx">options</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
|
||||
of the valid options, for <code>--help</code> and such.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">help: </span><span class="o">-></span>
|
||||
<span class="nx">lines</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'Available options:'</span><span class="p">]</span>
|
||||
of the valid options, for <code>--help</code> and such.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">help</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nv">lines = </span><span class="p">[</span><span class="s1">'Available options:'</span><span class="p">]</span>
|
||||
<span class="nx">lines</span><span class="p">.</span><span class="nx">unshift</span> <span class="s2">"#@banner\n"</span> <span class="k">if</span> <span class="nx">@banner</span>
|
||||
<span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
|
||||
<span class="nx">spaces</span> <span class="o">=</span> <span class="mi">15</span> <span class="o">-</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nx">spaces</span> <span class="o">=</span> <span class="k">if</span> <span class="nx">spaces</span> <span class="o">></span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">' '</span> <span class="k">for</span> <span class="nx">i</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="nx">spaces</span><span class="p">]).</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="nx">letPart</span> <span class="o">=</span> <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="k">then</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">+</span> <span class="s1">', '</span> <span class="k">else</span> <span class="s1">' '</span>
|
||||
<span class="nv">spaces = </span><span class="mi">15</span> <span class="o">-</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">spaces = </span><span class="k">if</span> <span class="nx">spaces</span> <span class="o">></span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">' '</span> <span class="k">for</span> <span class="nx">i</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="nx">spaces</span><span class="p">]).</span><span class="nx">join</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="nv">letPart = </span><span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="k">then</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">+</span> <span class="s1">', '</span> <span class="k">else</span> <span class="s1">' '</span>
|
||||
<span class="nx">lines</span><span class="p">.</span><span class="nx">push</span> <span class="s2">" #letPart#rule.longFlag#spaces#rule.description"</span>
|
||||
<span class="s2">"\n#{ lines.join('\n') }\n"</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <h2>Helpers</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Regex matchers for option flags.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">LONG_FLAG</span> <span class="o">=</span> <span class="sr">/^(--\w[\w\-]+)/</span>
|
||||
<span class="nx">SHORT_FLAG</span> <span class="o">=</span> <span class="sr">/^(-\w)/</span>
|
||||
<span class="nx">MULTI_FLAG</span> <span class="o">=</span> <span class="sr">/^-(\w{2,})/</span>
|
||||
<span class="nx">OPTIONAL</span> <span class="o">=</span> <span class="sr">/\[(.+)\]/</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</a> </div> <p>Build and return the list of option rules. If the optional <em>short-flag</em> is
|
||||
unspecified, leave it out by padding with <code>null</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">buildRules</span> <span class="o">=</span> <span class="p">(</span><span class="nx">rules</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="s2">"\n#{ lines.join('\n') }\n"</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <h2>Helpers</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Regex matchers for option flags.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">LONG_FLAG = </span><span class="sr">/^(--\w[\w\-]+)/</span>
|
||||
<span class="nv">SHORT_FLAG = </span><span class="sr">/^(-\w)/</span>
|
||||
<span class="nv">MULTI_FLAG = </span><span class="sr">/^-(\w{2,})/</span>
|
||||
<span class="nv">OPTIONAL = </span><span class="sr">/\[(.+)\]/</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</a> </div> <p>Build and return the list of option rules. If the optional <em>short-flag</em> is
|
||||
unspecified, leave it out by padding with <code>null</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">buildRules = </span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">for</span> <span class="nx">tuple</span> <span class="k">in</span> <span class="nx">rules</span>
|
||||
<span class="nx">tuple</span><span class="p">.</span><span class="nx">unshift</span> <span class="kc">null</span> <span class="k">if</span> <span class="nx">tuple</span><span class="p">.</span><span class="nx">length</span> <span class="o"><</span> <span class="mi">3</span>
|
||||
<span class="nx">buildRule</span> <span class="nx">tuple</span><span class="p">...</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
|
||||
description of what the option does.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">buildRule</span> <span class="o">=</span> <span class="p">(</span><span class="nx">shortFlag</span><span class="p">,</span> <span class="nx">longFlag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">match</span> <span class="o">=</span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPTIONAL</span><span class="p">)</span>
|
||||
<span class="nx">longFlag</span> <span class="o">=</span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
|
||||
description of what the option does.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">buildRule = </span><span class="p">(</span><span class="nx">shortFlag</span><span class="p">,</span> <span class="nx">longFlag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">match = </span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPTIONAL</span><span class="p">)</span>
|
||||
<span class="nv">longFlag = </span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="p">{</span>
|
||||
<span class="nv">name: </span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">2</span>
|
||||
<span class="nv">shortFlag: </span> <span class="nx">shortFlag</span>
|
||||
<span class="nv">longFlag: </span> <span class="nx">longFlag</span>
|
||||
<span class="nv">description: </span> <span class="nx">description</span>
|
||||
<span class="nv">hasArgument: </span> <span class="o">!!</span><span class="p">(</span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="nx">name</span><span class="o">:</span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">2</span>
|
||||
<span class="nx">shortFlag</span><span class="o">:</span> <span class="nx">shortFlag</span>
|
||||
<span class="nx">longFlag</span><span class="o">:</span> <span class="nx">longFlag</span>
|
||||
<span class="nx">description</span><span class="o">:</span> <span class="nx">description</span>
|
||||
<span class="nx">hasArgument</span><span class="o">:</span> <span class="o">!!</span><span class="p">(</span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>Normalize arguments by expanding merged flags into multiple flags. This allows
|
||||
you to have <code>-wl</code> be the same as <code>--watch --lint</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">normalizeArguments</span> <span class="o">=</span> <span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">args</span> <span class="o">=</span> <span class="nx">args</span><span class="p">.</span><span class="nx">slice</span> <span class="mi">0</span>
|
||||
<span class="nx">result</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
you to have <code>-wl</code> be the same as <code>--watch --lint</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">normalizeArguments = </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">args = </span><span class="nx">args</span><span class="p">.</span><span class="nx">slice</span> <span class="mi">0</span>
|
||||
<span class="nv">result = </span><span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="nx">arg</span> <span class="k">in</span> <span class="nx">args</span>
|
||||
<span class="k">if</span> <span class="nx">match</span> <span class="o">=</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span> <span class="nx">MULTI_FLAG</span>
|
||||
<span class="k">if</span> <span class="nv">match = </span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span> <span class="nx">MULTI_FLAG</span>
|
||||
<span class="nx">result</span><span class="p">.</span><span class="nx">push</span> <span class="s1">'-'</span> <span class="o">+</span> <span class="nx">l</span> <span class="k">for</span> <span class="nx">l</span> <span class="k">in</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">split</span> <span class="s1">''</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nx">result</span><span class="p">.</span><span class="nx">push</span> <span class="nx">arg</span>
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue