Merge pull request #624 from Golmote/prism-q

Add support for Q (kdb+ database)

components.js

@@ -309,6 +309,10 @@ var components = {
 			"title": "Python",
 			"owner": "multipetros"
 		},
+		"q": {
+			"title": "Q",
+			"owner": "Golmote"
+		},
 		"qore": {
 			"title": "Qore",
 			"require": ["clike"],

components/prism-q.js

@@ -0,0 +1,44 @@
+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 )\]}])\/.*/,
+			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))|$)|\S.*)/,
+			lookbehind: true
+		},
+		// From http://code.kx.com/wiki/Reference/Slash:
+		// A \ on a line by itself with no preceding matching / will comment to end of file.
+		/^\\[\t ]*(?:\r?\n|\r)[\s\S]+/m,
+
+		/^#!.+/m
+	],
+	'symbol': /`(?::\S+|[\w.]*)/,
+	'datetime': {
+		pattern: /0N[mdzuvt]|0W[dtz]|\d{4}\.\d\d(?:m|\.\d\d(?:T(?:\d\d(?::\d\d(?::\d\d(?:[.:]\d\d\d)?)?)?)?)?[dz]?)|\d\d:\d\d(?::\d\d(?:[.:]\d\d\d)?)?[uvt]?/,
+		alias: 'number'
+	},
+	// The negative look-ahead prevents bad highlighting
+	// of verbs 0: and 1:
+	'number': /\b-?(?![01]:)(?:0[wn]|0W[hj]?|0N[hje]?|0x[\da-fA-F]+|\d+\.?\d*(?:e[+-]?\d+)?[hjfeb]?)/,
+	'keyword': /\\\w+\b|\b(?:abs|acos|aj0?|all|and|any|asc|asin|asof|atan|attr|avgs?|binr?|by|ceiling|cols|cor|cos|count|cov|cross|csv|cut|delete|deltas|desc|dev|differ|distinct|div|do|dsave|ej|enlist|eval|except|exec|exit|exp|fby|fills|first|fkeys|flip|floor|from|get|getenv|group|gtime|hclose|hcount|hdel|hopen|hsym|iasc|identity|idesc|if|ij|in|insert|inter|inv|keys?|last|like|list|ljf?|load|log|lower|lsq|ltime|ltrim|mavg|maxs?|mcount|md5|mdev|med|meta|mins?|mmax|mmin|mmu|mod|msum|neg|next|not|null|or|over|parse|peach|pj|plist|prds?|prev|prior|rand|rank|ratios|raze|read0|read1|reciprocal|reval|reverse|rload|rotate|rsave|rtrim|save|scan|scov|sdev|select|set|setenv|show|signum|sin|sqrt|ssr?|string|sublist|sums?|sv|svar|system|tables|tan|til|trim|txf|type|uj|ungroup|union|update|upper|upsert|value|var|views?|vs|wavg|where|while|within|wj1?|wsum|ww|xasc|xbar|xcols?|xdesc|xexp|xgroup|xkey|xlog|xprev|xrank)\b/,
+	'adverb': {
+		pattern: /['\/\\]:?|\beach\b/,
+		alias: 'function'
+	},
+	'verb': {
+		pattern: /(?:\B\.\B|\b[01]:|<[=>]?|>=?|[:+\-*%,!?_~=|$&#@^]):?/,
+		alias: 'operator'
+	},
+	'punctuation': /[(){}\[\];.]/
+};

examples/prism-q.html

@@ -0,0 +1,118 @@
+<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
+/ 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"
+"\""
+"\\"
+"\142"
+"foo bar baz"</code></pre>
+
+<h2>Symbols</h2>
+<pre><code>`
+`q
+`zaphod
+`:198.162.0.2:5042
+`:www.yourco.com:5042
+`.new</code></pre>
+
+<h2>Numbers</h2>
+<pre><code>42
+b:-123h
+c:1234567890j
+pi:3.14159265
+float1:1f
+r:1.4142e
+2.0
+4.00e
+f:1.23456789e-10
+r:1.2345678e-10e
+bit:0b
+byte:0x2a
+a:42
+bit:1b
+
+0w 0n 0W 0Wh 0Wj</code></pre>
+
+<h2>Dates</h2>
+<pre><code>d:2006.07.04
+t:09:04:59.000
+dt:2006.07.04T09:04:59.000
+mon:2006.07m
+mm:09:04
+sec:09:04:59
+d:2006.07.04
+
+0Nm 0Nd 0Nz 0Nu 0Nv 0Wd 0Wt 0Wz</code></pre>
+
+<h2>Verbs</h2>
+<pre><code>99+L
+x<42|x>98
+(x<42)|x>98
+42~(4 2;(1 0))
+(4 2)~(4; 2*1)</code></pre>
+
+<h2>Adverbs</h2>
+<pre><code>" ," ,/: ("Now";"is";"the";"time")
+L1,/:\:L2
+0+/10 20 30
+(1#) each 1001 1002 1004 1003</code></pre>
+
+<h2>Built-in functions and q-sql</h2>
+<pre><code>string 42
+L1 cross L2
+type c
+select from t where price=(max;price) fby ([]sym;ex)
+ungroup `p xgroup sp
+`instrument insert (`g; `$"Google"; `$"Internet")</code></pre>
+
+<h2>Example</h2>
+<pre><code>/ Example from http://code.kx.com/wiki/Cookbook/CorporateActions
+getCAs:{[caTypes]
+    / handles multiplie corporate actions on one date
+    t:0!select factor:prd factor by date-1,sym from ca where caType in caTypes;
+    t,:update date:1901.01.01,factor:1.0 from ([]sym:distinct t`sym);
+    t:`date xasc t;
+    t:update factor:reverse prds reverse 1 rotate factor by sym from t;
+    :update `g#sym from 0!t;
+  };
+
+adjust:{[t;caTypes]
+    t:0!t;
+    factors:enlist 1.0^aj[`sym`date;([] date:t`date;sym:t`sym);getCAs caTypes]`factor;
+    mc:c where (lower c:cols t) like "*price"; / find columns to multiply
+    dc:c where lower[c] like "*size"; / find columns to divide
+    :![t;();0b;(mc,dc)!((*),/:mc,\:factors),((%),/:dc,\:factors)]; / multiply or divide out the columns
+  };
+
+/ get the adjustment factors considering all corporate actions
+getCAs exec distinct caType from ca
+
+adjust[t;`dividend] / adjust trades for dividends only</code></pre>
+
+<h2>Known failures</h2>
+<p>There are certain edge cases where Prism will fail.
+	There are always such cases in every regex-based syntax highlighter.
+	However, Prism dares to be open and honest about them.
+	If a failure is listed here, it doesn’t mean it will never be fixed. This is more of a “known bugs” list, just with a certain type of bug.
+</p>
+
+<h3>Two double quotes in a comment</h3>
+<pre><code>/ This "comment" is broken</code></pre>
+
+<h3>The global context is highlighted as a verb</h3>
+<pre><code>\d .</code></pre>

tests/languages/q/adverb_feature.test

@@ -0,0 +1,17 @@
+' ':
++/ +/:
+\ \:
+each
+
+----------------------------------------------------
+
+[
+	["adverb", "'"], ["adverb", "':"],
+	["verb", "+"], ["adverb", "/"], ["verb", "+"], ["adverb", "/:"],
+	["adverb", "\\"], ["adverb", "\\:"],
+	["adverb", "each"]
+]
+
+----------------------------------------------------
+
+Checks for adverbs.

tests/languages/q/comment_feature.test

@@ -0,0 +1,24 @@
+#!/usr/bin/env q
+/ Foobar
+
+/
+Foo
+bar
+\
+
+\
+Foo
+Bar
+
+----------------------------------------------------
+
+[
+	["comment", "#!/usr/bin/env q"],
+	["comment", "/ Foobar"],
+	["comment", "/\r\nFoo\r\nbar\r\n\\"],
+	["comment", "\\\r\nFoo\r\nBar"]
+]
+
+----------------------------------------------------
+
+Checks for comments.

tests/languages/q/datetime_feature.test

@@ -0,0 +1,39 @@
+0Nm 0Nd 0Nz 0Nu 0Nv 0Nt
+0Wd 0Wt 0Wz
+
+2015.09m
+2015.09.08
+2015.09.08d
+2015.09.08z
+2015.09.08T08:25:32
+2015.09.08T08:25:32.000
+08:25
+08:25u
+08:25v
+08:25t
+08:25:32
+08:25:32:000
+
+----------------------------------------------------
+
+[
+	["datetime", "0Nm"], ["datetime", "0Nd"], ["datetime", "0Nz"], ["datetime", "0Nu"], ["datetime", "0Nv"], ["datetime", "0Nt"],
+	["datetime", "0Wd"], ["datetime", "0Wt"], ["datetime", "0Wz"],
+
+	["datetime", "2015.09m"],
+	["datetime", "2015.09.08"],
+	["datetime", "2015.09.08d"],
+	["datetime", "2015.09.08z"],
+	["datetime", "2015.09.08T08:25:32"],
+	["datetime", "2015.09.08T08:25:32.000"],
+	["datetime", "08:25"],
+	["datetime", "08:25u"],
+	["datetime", "08:25v"],
+	["datetime", "08:25t"],
+	["datetime", "08:25:32"],
+	["datetime", "08:25:32:000"]
+]
+
+----------------------------------------------------
+
+Checks for dates, times and datetimes.