1 files changed, 123 insertions, 0 deletions

diff --git a/imports/codemirror/lib/util/pig-hint.js b/imports/codemirror/lib/util/pig-hint.js
new file mode 100644
index 00000000..233b72bf
--- /dev/null
+++ b/imports/codemirror/lib/util/pig-hint.js
@@ -0,0 +1,123 @@
+(function () {
+  function forEach(arr, f) {
+    for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
+  }
+  
+  function arrayContains(arr, item) {
+    if (!Array.prototype.indexOf) {
+      var i = arr.length;
+      while (i--) {
+        if (arr[i] === item) {
+          return true;
+        }
+      }
+      return false;
+    }
+    return arr.indexOf(item) != -1;
+  }
+
+  function scriptHint(editor, keywords, getToken) {
+    // Find the token at the cursor
+    var cur = editor.getCursor(), token = getToken(editor, cur), tprop = token;
+    // If it's not a 'word-style' token, ignore the token.
+
+    if (!/^[\w$_]*$/.test(token.string)) {
+        token = tprop = {start: cur.ch, end: cur.ch, string: "", state: token.state,
+                         className: token.string == ":" ? "pig-type" : null};
+    }
+      
+    if (!context) var context = [];
+    context.push(tprop);
+    
+    completionList = getCompletions(token, context); 
+    completionList = completionList.sort();
+    //prevent autocomplete for last word, instead show dropdown with one word
+    if(completionList.length == 1) {
+      completionList.push(" ");
+    }
+
+    return {list: completionList,
+              from: {line: cur.line, ch: token.start},
+              to: {line: cur.line, ch: token.end}};
+  }
+  
+  CodeMirror.pigHint = function(editor) {
+    return scriptHint(editor, pigKeywordsU, function (e, cur) {return e.getTokenAt(cur);});
+  }
+ 
+ function toTitleCase(str) {
+    return str.replace(/(?:^|\s)\w/g, function(match) {
+        return match.toUpperCase();
+    });
+ }
+  
+  var pigKeywords = "VOID IMPORT RETURNS DEFINE LOAD FILTER FOREACH ORDER CUBE DISTINCT COGROUP "
+  + "JOIN CROSS UNION SPLIT INTO IF OTHERWISE ALL AS BY USING INNER OUTER ONSCHEMA PARALLEL "
+  + "PARTITION GROUP AND OR NOT GENERATE FLATTEN ASC DESC IS STREAM THROUGH STORE MAPREDUCE "
+  + "SHIP CACHE INPUT OUTPUT STDERROR STDIN STDOUT LIMIT SAMPLE LEFT RIGHT FULL EQ GT LT GTE LTE " 
+  + "NEQ MATCHES TRUE FALSE";
+  var pigKeywordsU = pigKeywords.split(" ");
+  var pigKeywordsL = pigKeywords.toLowerCase().split(" ");
+  
+  var pigTypes = "BOOLEAN INT LONG FLOAT DOUBLE CHARARRAY BYTEARRAY BAG TUPLE MAP";
+  var pigTypesU = pigTypes.split(" ");
+  var pigTypesL = pigTypes.toLowerCase().split(" ");
+  
+  var pigBuiltins = "ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL " 
+  + "CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS "
+  + "DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG "
+  + "FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN "
+  + "INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER "
+  + "ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS "
+  + "LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA  "
+  + "PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN SINH SIZE "
+  + "SQRT STRSPLIT SUBSTRING SUM STRINGCONCAT STRINGMAX STRINGMIN STRINGSIZE TAN TANH TOBAG "
+  + "TOKENIZE TOMAP TOP TOTUPLE TRIM TEXTLOADER TUPLESIZE UCFIRST UPPER UTF8STORAGECONVERTER";  
+  var pigBuiltinsU = pigBuiltins.split(" ").join("() ").split(" ");  
+  var pigBuiltinsL = pigBuiltins.toLowerCase().split(" ").join("() ").split(" ");   
+  var pigBuiltinsC = ("BagSize BinStorage Bloom BuildBloom ConstantSize CubeDimensions DoubleAbs "
+  + "DoubleAvg DoubleBase DoubleMax DoubleMin DoubleRound DoubleSum FloatAbs FloatAvg FloatMax "
+  + "FloatMin FloatRound FloatSum GenericInvoker IntAbs IntAvg IntMax IntMin IntSum "
+  + "InvokeForDouble InvokeForFloat InvokeForInt InvokeForLong InvokeForString Invoker "
+  + "IsEmpty JsonLoader JsonMetadata JsonStorage LongAbs LongAvg LongMax LongMin LongSum MapSize "
+  + "MonitoredUDF Nondeterministic OutputSchema PigStorage PigStreaming StringConcat StringMax "
+  + "StringMin StringSize TextLoader TupleSize Utf8StorageConverter").split(" ").join("() ").split(" ");
+                    
+  function getCompletions(token, context) {
+    var found = [], start = token.string;
+    function maybeAdd(str) {
+      if (str.indexOf(start) == 0 && !arrayContains(found, str)) found.push(str);
+    }
+    
+    function gatherCompletions(obj) {
+      if(obj == ":") {
+        forEach(pigTypesL, maybeAdd);
+      }
+      else {
+        forEach(pigBuiltinsU, maybeAdd);
+        forEach(pigBuiltinsL, maybeAdd);
+        forEach(pigBuiltinsC, maybeAdd);
+        forEach(pigTypesU, maybeAdd);
+        forEach(pigTypesL, maybeAdd);
+        forEach(pigKeywordsU, maybeAdd);
+        forEach(pigKeywordsL, maybeAdd);
+      }
+    }
+
+    if (context) {
+      // If this is a property, see if it belongs to some object we can
+      // find in the current environment.
+      var obj = context.pop(), base;
+
+      if (obj.className == "pig-word") 
+          base = obj.string;
+      else if(obj.className == "pig-type")
+          base = ":" + obj.string;
+        
+      while (base != null && context.length)
+        base = base[context.pop().string];
+      if (base != null) gatherCompletions(base);
+    }
+    return found;
+  }
+})();