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| <pre id='vimCodeElement'> | |
| <span id="L1" class="LineNr"> 1 </span><span class="Comment">// This file provides examples of syntactic constructs in wren, which is mainly</span> | |
| <span id="L2" class="LineNr"> 2 </span><span class="Comment">// interesting for testing syntax highlighters.</span> | |
| <span id="L3" class="LineNr"> 3 </span> | |
| <span id="L4" class="LineNr"> 4 </span><span class="Comment">// This is a comment.</span> | |
| <span id="L5" class="LineNr"> 5 </span><span class="Comment">/* This is /* a nested */ comment. */</span> | |
| <span id="L6" class="LineNr"> 6 </span> | |
| <span id="L7" class="LineNr"> 7 </span><span class="Comment">// Class definition with a toplevel name.</span> | |
| <span id="L8" class="LineNr"> 8 </span><span class="Keyword">class</span> <span class="Identifier">SyntaxExample</span> { | |
| <span id="L9" class="LineNr"> 9 </span> <span class="Comment">// Constructor</span> | |
| <span id="L10" class="LineNr"> 10 </span><span class="Function"> </span><span class="Keyword">new</span> { | |
| <span id="L11" class="LineNr"> 11 </span> <span class="Comment">// toplevel name `IO`</span> | |
| <span id="L12" class="LineNr"> 12 </span> <span class="Identifier">IO</span>.print(<span class="String">"I am a constructor!"</span>) | |
| <span id="L13" class="LineNr"> 13 </span> <span class="Comment">// method calls</span> | |
| <span id="L14" class="LineNr"> 14 </span> variables | |
| <span id="L15" class="LineNr"> 15 </span> fields() | |
| <span id="L16" class="LineNr"> 16 </span> <span class="Comment">// static method call</span> | |
| <span id="L17" class="LineNr"> 17 </span> <span class="Identifier">SyntaxExample</span>.fields(<span class="Number">1</span>) | |
| <span id="L18" class="LineNr"> 18 </span> } | |
| <span id="L19" class="LineNr"> 19 </span> | |
| <span id="L20" class="LineNr"> 20 </span> <span class="Comment">// Constructor with arguments</span> | |
| <span id="L21" class="LineNr"> 21 </span><span class="Function"> </span><span class="Keyword">new</span>(a, b) { | |
| <span id="L22" class="LineNr"> 22 </span> print(a, b) | |
| <span id="L23" class="LineNr"> 23 </span> field <span class="Normal">=</span> a | |
| <span id="L24" class="LineNr"> 24 </span> } | |
| <span id="L25" class="LineNr"> 25 </span> | |
| <span id="L26" class="LineNr"> 26 </span> <span class="Comment">// Method without arguments</span> | |
| <span id="L27" class="LineNr"> 27 </span><span class="Function"> variables</span> { | |
| <span id="L28" class="LineNr"> 28 </span> <span class="Comment">// Valid local variable names.</span> | |
| <span id="L29" class="LineNr"> 29 </span> <span class="Keyword">var</span> hi | |
| <span id="L30" class="LineNr"> 30 </span> <span class="Keyword">var</span> camelCase | |
| <span id="L31" class="LineNr"> 31 </span> <span class="Keyword">var</span> <span class="Identifier">PascalCase</span> | |
| <span id="L32" class="LineNr"> 32 </span> <span class="Keyword">var</span> abc123 | |
| <span id="L33" class="LineNr"> 33 </span> <span class="Keyword">var</span> <span class="Identifier">ALL_CAPS</span> | |
| <span id="L34" class="LineNr"> 34 </span> } | |
| <span id="L35" class="LineNr"> 35 </span> | |
| <span id="L36" class="LineNr"> 36 </span> <span class="Comment">// Method with empty argument list</span> | |
| <span id="L37" class="LineNr"> 37 </span><span class="Function"> fields</span>() { | |
| <span id="L38" class="LineNr"> 38 </span> <span class="Comment">// Fields</span> | |
| <span id="L39" class="LineNr"> 39 </span> <span class="Identifier">_under_score</span> <span class="Normal">=</span> <span class="Number">1</span> | |
| <span id="L40" class="LineNr"> 40 </span> <span class="Identifier">_field</span> <span class="Normal">=</span> <span class="Number">2</span> | |
| <span id="L41" class="LineNr"> 41 </span> } | |
| <span id="L42" class="LineNr"> 42 </span> | |
| <span id="L43" class="LineNr"> 43 </span> <span class="Comment">// Static method with single argument</span> | |
| <span id="L44" class="LineNr"> 44 </span><span class="Function"> </span><span class="Keyword">static</span><span class="Function"> fields</span>(a) { | |
| <span id="L45" class="LineNr"> 45 </span> <span class="Comment">// Static field</span> | |
| <span id="L46" class="LineNr"> 46 </span> <span class="Identifier">__a</span> <span class="Normal">=</span> a | |
| <span id="L47" class="LineNr"> 47 </span> } | |
| <span id="L48" class="LineNr"> 48 </span> | |
| <span id="L49" class="LineNr"> 49 </span> <span class="Comment">// setter</span> | |
| <span id="L50" class="LineNr"> 50 </span><span class="Function"> field=</span>(value) { <span class="Identifier">_field</span> <span class="Normal">=</span> value } | |
| <span id="L51" class="LineNr"> 51 </span> | |
| <span id="L52" class="LineNr"> 52 </span> <span class="Comment">// Method with arguments</span> | |
| <span id="L53" class="LineNr"> 53 </span><span class="Function"> print</span>(a, b) { <span class="Identifier">IO</span>.print(a <span class="Normal">+</span> b) } | |
| <span id="L54" class="LineNr"> 54 </span>} | |
| <span id="L55" class="LineNr"> 55 </span> | |
| <span id="L56" class="LineNr"> 56 </span><span class="Comment">// `class`, `is`</span> | |
| <span id="L57" class="LineNr"> 57 </span><span class="Keyword">class</span> <span class="Identifier">ReservedWords</span> <span class="Keyword">is</span> <span class="Identifier">SyntaxExample</span> { | |
| <span id="L58" class="LineNr"> 58 </span> <span class="Comment">// `new`</span> | |
| <span id="L59" class="LineNr"> 59 </span><span class="Function"> </span><span class="Keyword">new</span> { | |
| <span id="L60" class="LineNr"> 60 </span> <span class="Comment">// `super`, `true`, `false`</span> | |
| <span id="L61" class="LineNr"> 61 </span> <span class="Keyword">super</span>(<span class="Boolean">true</span>, <span class="Boolean">false</span>) | |
| <span id="L62" class="LineNr"> 62 </span> <span class="Comment">// `this`</span> | |
| <span id="L63" class="LineNr"> 63 </span> <span class="Keyword">this</span>.foo | |
| <span id="L64" class="LineNr"> 64 </span> <span class="Comment">// `new`</span> | |
| <span id="L65" class="LineNr"> 65 </span> <span class="Keyword">new</span> <span class="Identifier">SyntaxExample</span> | |
| <span id="L66" class="LineNr"> 66 </span> } | |
| <span id="L67" class="LineNr"> 67 </span> | |
| <span id="L68" class="LineNr"> 68 </span><span class="Function"> foo</span> { | |
| <span id="L69" class="LineNr"> 69 </span> <span class="Comment">// `var`</span> | |
| <span id="L70" class="LineNr"> 70 </span> <span class="Keyword">var</span> n <span class="Normal">=</span> <span class="Number">27</span> | |
| <span id="L71" class="LineNr"> 71 </span> <span class="Comment">// `while`, `if`, `else`</span> | |
| <span id="L72" class="LineNr"> 72 </span> <span class="Repeat">while</span> (n <span class="Normal">!=</span> <span class="Number">1</span>) <span class="Conditional">if</span> (n <span class="Normal">%</span> <span class="Number">2</span> <span class="Normal">==</span> <span class="Number">0</span>) n <span class="Normal">=</span> n <span class="Normal">/</span> <span class="Number">2</span> <span class="Conditional">else</span> n <span class="Normal">=</span> <span class="Number">3</span> <span class="Normal">*</span> n <span class="Normal">+</span> <span class="Number">1</span> | |
| <span id="L73" class="LineNr"> 73 </span> | |
| <span id="L74" class="LineNr"> 74 </span> <span class="Comment">// `for`, `in`</span> | |
| <span id="L75" class="LineNr"> 75 </span><span class="Function"> for</span> (beatle <span class="Keyword">in</span> [<span class="String">"george"</span>, <span class="String">"john"</span>, <span class="String">"paul"</span>, <span class="String">"ringo"</span>]) { | |
| <span id="L76" class="LineNr"> 76 </span> <span class="Identifier">IO</span>.print(beatle) | |
| <span id="L77" class="LineNr"> 77 </span> <span class="Comment">// `break`</span> | |
| <span id="L78" class="LineNr"> 78 </span> <span class="Repeat">break</span> | |
| <span id="L79" class="LineNr"> 79 </span> } | |
| <span id="L80" class="LineNr"> 80 </span> | |
| <span id="L81" class="LineNr"> 81 </span> <span class="Comment">// `return`, `null`</span> | |
| <span id="L82" class="LineNr"> 82 </span> <span class="Keyword">return</span> <span class="Constant">null</span> | |
| <span id="L83" class="LineNr"> 83 </span> } | |
| <span id="L84" class="LineNr"> 84 </span> | |
| <span id="L85" class="LineNr"> 85 </span><span class="Function"> imports</span> { | |
| <span id="L86" class="LineNr"> 86 </span> <span class="Comment">// `import`</span> | |
| <span id="L87" class="LineNr"> 87 </span> <span class="Keyword">import</span> <span class="String">"hello"</span> | |
| <span id="L88" class="LineNr"> 88 </span> <span class="Comment">// `import`, `for`</span> | |
| <span id="L89" class="LineNr"> 89 </span> <span class="Keyword">import</span> <span class="String">"set"</span> <span class="Repeat">for</span> <span class="Identifier">Set</span> | |
| <span id="L90" class="LineNr"> 90 </span> } | |
| <span id="L91" class="LineNr"> 91 </span> | |
| <span id="L92" class="LineNr"> 92 </span> <span class="Comment">// `foreign`, `static`</span> | |
| <span id="L93" class="LineNr"> 93 </span><span class="Function"> </span><span class="Keyword">foreign</span><span class="Function"> </span><span class="Keyword">static</span><span class="Function"> bar</span> | |
| <span id="L94" class="LineNr"> 94 </span><span class="Function"> </span><span class="Keyword">foreign</span><span class="Function"> baz</span>(string) | |
| <span id="L95" class="LineNr"> 95 </span> <span class="Comment">// (Remove lines above to make this file compile)</span> | |
| <span id="L96" class="LineNr"> 96 </span>} | |
| <span id="L97" class="LineNr"> 97 </span> | |
| <span id="L98" class="LineNr"> 98 </span><span class="Keyword">class</span> literals <span class="Keyword">is</span> <span class="Identifier">SyntaxExample</span> { | |
| <span id="L99" class="LineNr"> 99 </span><span class="Function"> booleans</span> { <span class="Boolean">true</span> <span class="Normal">||</span> <span class="Boolean">false</span> } | |
| <span id="L100" class="LineNr">100 </span><span class="Function"> numbers</span> { | |
| <span id="L101" class="LineNr">101 </span> <span class="Number">0</span> | |
| <span id="L102" class="LineNr">102 </span> <span class="Number">1234</span> | |
| <span id="L103" class="LineNr">103 </span> <span class="Normal">-</span><span class="Number">5678</span> | |
| <span id="L104" class="LineNr">104 </span> <span class="Number">3.14159</span> | |
| <span id="L105" class="LineNr">105 </span> <span class="Number">1.0</span> | |
| <span id="L106" class="LineNr">106 </span> <span class="Normal">-</span><span class="Number">12.34</span> | |
| <span id="L107" class="LineNr">107 </span> <span class="Number">0xdeadbeef</span> | |
| <span id="L108" class="LineNr">108 </span> <span class="Number">0x1234567890ABCDEF</span> | |
| <span id="L109" class="LineNr">109 </span> } | |
| <span id="L110" class="LineNr">110 </span><span class="Function"> strings</span> { | |
| <span id="L111" class="LineNr">111 </span> <span class="String">"hi there"</span> | |
| <span id="L112" class="LineNr">112 </span> <span class="Comment">// Escapes:</span> | |
| <span id="L113" class="LineNr">113 </span> <span class="String">"</span><span class="Special">\0</span><span class="String">"</span> <span class="Comment">// The NUL byte: 0.</span> | |
| <span id="L114" class="LineNr">114 </span> <span class="String">"</span><span class="Special">\"</span><span class="String">"</span> <span class="Comment">// A double quote character.</span> | |
| <span id="L115" class="LineNr">115 </span> <span class="String">"</span><span class="Special">\\</span><span class="String">"</span> <span class="Comment">// A backslash.</span> | |
| <span id="L116" class="LineNr">116 </span> <span class="String">"</span><span class="Special">\a</span><span class="String">"</span> <span class="Comment">// Alarm beep. (Who uses this?)</span> | |
| <span id="L117" class="LineNr">117 </span> <span class="String">"</span><span class="Special">\b</span><span class="String">"</span> <span class="Comment">// Backspace.</span> | |
| <span id="L118" class="LineNr">118 </span> <span class="String">"</span><span class="Special">\f</span><span class="String">"</span> <span class="Comment">// Formfeed.</span> | |
| <span id="L119" class="LineNr">119 </span> <span class="String">"</span><span class="Special">\n</span><span class="String">"</span> <span class="Comment">// Newline.</span> | |
| <span id="L120" class="LineNr">120 </span> <span class="String">"</span><span class="Special">\r</span><span class="String">"</span> <span class="Comment">// Carriage return.</span> | |
| <span id="L121" class="LineNr">121 </span> <span class="String">"</span><span class="Special">\t</span><span class="String">"</span> <span class="Comment">// Tab.</span> | |
| <span id="L122" class="LineNr">122 </span> <span class="String">"</span><span class="Special">\v</span><span class="String">"</span> <span class="Comment">// Vertical tab.</span> | |
| <span id="L123" class="LineNr">123 </span> <span class="Comment">// Unicode code points</span> | |
| <span id="L124" class="LineNr">124 </span> <span class="Identifier">IO</span>.print(<span class="String">"</span><span class="Special">\u0041\u0b83\u00DE</span><span class="String">"</span>) <span class="Comment">// "AஃÞ"</span> | |
| <span id="L125" class="LineNr">125 </span> <span class="Comment">// Unencoded bytes</span> | |
| <span id="L126" class="LineNr">126 </span> <span class="Identifier">IO</span>.print(<span class="String">"</span><span class="Special">\x48\x69\x2e</span><span class="String">"</span>) <span class="Comment">// "Hi."</span> | |
| <span id="L127" class="LineNr">127 </span> } | |
| <span id="L128" class="LineNr">128 </span><span class="Function"> ranges</span> { | |
| <span id="L129" class="LineNr">129 </span> <span class="Number">3</span><span class="Normal">..</span><span class="Number">8</span> <span class="Comment">// inclusive</span> | |
| <span id="L130" class="LineNr">130 </span> <span class="Number">4</span><span class="Normal">...</span><span class="Number">6</span> <span class="Comment">// half-inclusive</span> | |
| <span id="L131" class="LineNr">131 </span> } | |
| <span id="L132" class="LineNr">132 </span><span class="Function"> nothing</span> { <span class="Constant">null</span> } | |
| <span id="L133" class="LineNr">133 </span> | |
| <span id="L134" class="LineNr">134 </span><span class="Function"> lists</span> { | |
| <span id="L135" class="LineNr">135 </span> <span class="Keyword">var</span> list <span class="Normal">=</span> [<span class="Number">1</span>, <span class="String">"banana"</span>, <span class="Boolean">true</span>] | |
| <span id="L136" class="LineNr">136 </span> list[<span class="Number">0</span>] <span class="Normal">=</span> <span class="Number">5</span> | |
| <span id="L137" class="LineNr">137 </span> list[<span class="Number">1</span><span class="Normal">..</span><span class="Number">2</span>] | |
| <span id="L138" class="LineNr">138 </span> } | |
| <span id="L139" class="LineNr">139 </span><span class="Function"> maps</span> { | |
| <span id="L140" class="LineNr">140 </span> <span class="Keyword">var</span> stringMap <span class="Normal">=</span> { | |
| <span id="L141" class="LineNr">141 </span> <span class="String">"George"</span>: <span class="String">"Harrison"</span>, | |
| <span id="L142" class="LineNr">142 </span> <span class="String">"John"</span>: <span class="String">"Lennon"</span>, | |
| <span id="L143" class="LineNr">143 </span> <span class="String">"Paul"</span>: <span class="String">"McCartney"</span>, | |
| <span id="L144" class="LineNr">144 </span> <span class="String">"Ringo"</span>: <span class="String">"Starr"</span> | |
| <span id="L145" class="LineNr">145 </span> } | |
| <span id="L146" class="LineNr">146 </span> <span class="Keyword">var</span> a <span class="Normal">=</span> <span class="Number">1</span> | |
| <span id="L147" class="LineNr">147 </span> <span class="Keyword">var</span> weirdMap <span class="Normal">=</span> { | |
| <span id="L148" class="LineNr">148 </span> <span class="Boolean">true</span>: <span class="Number">1</span>, | |
| <span id="L149" class="LineNr">149 </span> <span class="Boolean">false</span>: <span class="Number">0</span>, | |
| <span id="L150" class="LineNr">150 </span> <span class="Constant">null</span>: <span class="Normal">-</span><span class="Number">1</span>, | |
| <span id="L151" class="LineNr">151 </span> <span class="String">"str"</span>: <span class="String">"abc"</span>, | |
| <span id="L152" class="LineNr">152 </span> (<span class="Number">1</span><span class="Normal">..</span><span class="Number">5</span>): <span class="Number">10</span>, | |
| <span id="L153" class="LineNr">153 </span> a: <span class="Number">2</span>, | |
| <span id="L154" class="LineNr">154 </span> <span class="Identifier">_a</span>: <span class="Number">3</span>, | |
| <span id="L155" class="LineNr">155 </span> <span class="Identifier">__a</span>: <span class="Number">4</span> | |
| <span id="L156" class="LineNr">156 </span> } | |
| <span id="L157" class="LineNr">157 </span> } | |
| <span id="L158" class="LineNr">158 </span>} | |
| </pre> | |
| </body> | |
| </html> | |
| <!-- vim: set foldmethod=manual : --> |
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