Q: Fixed comments + added explanation, renamed date to datetime, opti…

…mized operators

components/prism-q.js

@@ -1,25 +1,43 @@
 Prism.languages.q = {
 	'string': /"(?:\\.|[^"\\\r\n])*"/,
 	'comment': [
+		// From http://code.kx.com/wiki/Reference/Slash:
+		// When / is following a space (or a right parenthesis, bracket, or brace), it is ignored with the rest of the line.
 		{
-			pattern: /(^|[\t ])\/.+/m,
+
+			pattern: /([\t )\]}])\/.*/,
 			lookbehind: true
 		},
-		/#!.+/
+		// From http://code.kx.com/wiki/Reference/Slash:
+		// A line which has / as its first character and contains at least one other non-whitespace character is a whole-line comment and is ignored entirely.
+		// A / on a line by itself begins a multiline comment which is terminated by the next \ on a line by itself.
+		// If a / is not matched by a \, the multiline comment is unterminated and continues to end of file.
+		// The / and \ must be the first char on the line, but may be followed by any amount of whitespace.
+		{
+			pattern: /(^|\r?\n|\r)\/[\t ]*(?:(?:\r?\n|\r)(?:.*(?:\r?\n|\r))*?(?:\\(?=[\t ]*(?:\r?\n|\r))|$)|\S.*)/,
+			lookbehind: true
+		},
+		// From http://code.kx.com/wiki/Reference/Slash:
+		// A \ on a line by itself with no preceding matching / will comment to end of file.
+		/^\\[\t ]*(?:\r?\n|\r)[\s\S]+/m,
+
+		/^#!.+/m
 	],
 	'symbol': /`(?::\S+|[\w.]*)/,
-	'date': {
+	'datetime': {
 		pattern: /0N[mdzuvt]|0W[dtz]|\d{4}\.\d\d(?:m|\.\d\d(?:T(?:\d\d(?::\d\d(?::\d\d(?:[.:]\d\d\d)?)?)?)?)?[dz]?)|\d\d:\d\d(?::\d\d(?:[.:]\d\d\d)?)?[uvt]?/,
 		alias: 'number'
 	},
+	// The negative look-ahead prevents bad highlighting
+	// of verbs 0: and 1:
 	'number': /\b-?(?![01]:)(?:0[wn]|0W[hj]?|0N[hje]?|0x[\da-fA-F]+|\d+\.?\d*(?:e[+-]?\d+)?[hjfeb]?)/,
 	'keyword': /\\\w+\b|\b(?:abs|acos|aj0?|all|and|any|asc|asin|asof|atan|attr|avgs?|binr?|by|ceiling|cols|cor|cos|count|cov|cross|csv|cut|delete|deltas|desc|dev|differ|distinct|div|do|dsave|ej|enlist|eval|except|exec|exit|exp|fby|fills|first|fkeys|flip|floor|from|get|getenv|group|gtime|hclose|hcount|hdel|hopen|hsym|iasc|identity|idesc|if|ij|in|insert|inter|inv|keys?|last|like|list|ljf?|load|log|lower|lsq|ltime|ltrim|mavg|maxs?|mcount|md5|mdev|med|meta|mins?|mmax|mmin|mmu|mod|msum|neg|next|not|null|or|over|parse|peach|pj|plist|prds?|prev|prior|rand|rank|ratios|raze|read0|read1|reciprocal|reval|reverse|rload|rotate|rsave|rtrim|save|scan|scov|sdev|select|set|setenv|show|signum|sin|sqrt|ssr?|string|sublist|sums?|sv|svar|system|tables|tan|til|trim|txf|type|uj|ungroup|union|update|upper|upsert|value|var|views?|vs|wavg|where|while|within|wj1?|wsum|ww|xasc|xbar|xcols?|xdesc|xexp|xgroup|xkey|xlog|xprev|xrank)\b/,
 	'adverb': {
 		pattern: /['\/\\]:?|\beach\b/,
 		alias: 'function'
 	},
 	'verb': {
-		pattern: /(?:\B\.\B|\b[01]:|<>|[<>]=?|:|[+\-*%,!?_~=|$&#@^']):?/,
+		pattern: /(?:\B\.\B|\b[01]:|<[=>]?|>=?|[:+\-*%,!?_~=|$&#@^]):?/,
 		alias: 'operator'
 	},
 	'punctuation': /[(){}\[\];.]/

examples/prism-q.html

@@ -2,7 +2,18 @@ <h1>Q (kdb+ database)</h1>
 <p>To use this language, use the class "language-q".</p>
 
 <h2>Comments</h2>
-<pre><code>foo / This is a comment</code></pre>
+<pre><code>foo / This is a comment
+/ This is a comment too
+
+/
+Some multi-line
+comment here
+\
+
+\
+This comment will
+continue until the
+end of code</code></pre>
 
 <h2>Character data and strings</h2>
 <pre><code>"q"