http://dev.clojure.org/jira This file is an XML representation of an issue en-us 4.4 649 25-07-2011 http://dev.clojure.org/jira/browse/CLJS-142 ClojureScript <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">ClojureScript:cljs.user&gt; (cljs.reader/read-string <span class="code-quote">"{:9k <span class="code-keyword">true</span>}"</span>) <span class="code-quote">"Error evaluating:"</span> (cljs.reader/read-string <span class="code-quote">"{:9k <span class="code-keyword">true</span>}"</span>) :as <span class="code-quote">"cljs.reader.read_string.call(<span class="code-keyword">null</span>,\"</span>{:9k <span class="code-keyword">true</span>}\<span class="code-quote">");\n"</span> #&lt;TypeError: Cannot read property 'length' of <span class="code-keyword">null</span>&gt; TypeError: Cannot read property 'length' of <span class="code-keyword">null</span> at http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:530:38 </span> at http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:534:2 </span> at read_keyword (http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:547:2) </span> at read_delimited_list (http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:373:32) </span> at read_map (http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:418:47) </span> at read (http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:675:115) </span> at read_string (http:<span class="code-comment">//localhost:8080/javascripts/out/cljs/reader.js:707:25) </span> at eval at &lt;anonymous&gt; (http:<span class="code-comment">//localhost:8080/javascripts/out/clojure/browser/repl.js:21:158) </span> at eval at &lt;anonymous&gt; (http:<span class="code-comment">//localhost:8080/javascripts/out/clojure/browser/repl.js:21:158) </span> at http:<span class="code-comment">//localhost:8080/javascripts/out/clojure/browser/repl.js:21:153 </span>nil</pre> </div></div> CLJS-142

ClojureScript reader throws TypeError when map keys start with colon then number

Defect Minor Resolved Declined Unassigned Murphy McMahon Fri, 3 Feb 2012 14:11:17 -0600 Fri, 31 Aug 2012 09:43:11 -0500 Fri, 31 Aug 2012 09:43:11 -0500 0 1 <p>Probably related: the read-string function throws an "Uncaught Invalid number format" for any non-numeric value beginning with a number.</p> <p>After looking over this <a href="http://clojure.org/reader">http://clojure.org/reader</a> I'm not sure that the current behavior is a problem. The fact that keywords that start with numbers happens to work may just be an oversight.</p> <p>OK, I see. I had wanted to use UUIDs as map keys for quick lookups. I'll rethink my approach.</p> <p>You can just use regular Strings, Keywords are an illusion anyhow in ClojureScript.</p> <p>@David</p> <p>Digging around LispReader.java in clojure, I found the symbol pattern:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"><span class="code-quote">"[:]?([\\D&amp;&amp;[^/]].*/)?([\\D&amp;&amp;[^/]][^/]*)"</span></pre> </div></div> <p>Best I can tell, that transcribes directly to the regex the clojurescript reader is using. I'm a bit surprised that clojure allows keywords that start with a number.</p> <p>I created a Clojure issue mentioning this: <a href="http://dev.clojure.org/jira/browse/CLJ-1003" title=":100 is a valid Clojure keyword. Is that intentional?">CLJ-1003</a></p> <p>There is no evidence that this allowed.</p> Global Rank