1 files changed, 172 insertions, 0 deletions

diff --git a/imports/codemirror/mode/pig/pig.js b/imports/codemirror/mode/pig/pig.js
new file mode 100644
index 00000000..b7399b43
--- /dev/null
+++ b/imports/codemirror/mode/pig/pig.js
@@ -0,0 +1,172 @@
+/*
+ *      Pig Latin Mode for CodeMirror 2 
+ *      @author Prasanth Jayachandran
+ *      @link   https://github.com/prasanthj/pig-codemirror-2
+ *  This implementation is adapted from PL/SQL mode in CodeMirror 2.
+*/
+CodeMirror.defineMode("pig", function(config, parserConfig) {
+        var indentUnit = config.indentUnit,
+                keywords = parserConfig.keywords,
+                builtins = parserConfig.builtins,
+                types = parserConfig.types,
+                multiLineStrings = parserConfig.multiLineStrings;
+        
+        var isOperatorChar = /[*+\-%<>=&?:\/!|]/;
+        
+        function chain(stream, state, f) {
+                state.tokenize = f;
+                return f(stream, state);
+        }
+        
+        var type;
+        function ret(tp, style) {
+                type = tp;
+                return style;
+        }
+        
+        function tokenComment(stream, state) {
+                var isEnd = false;
+                var ch;
+                while(ch = stream.next()) {
+                        if(ch == "/" && isEnd) {
+                                state.tokenize = tokenBase;
+                                break;
+                        }
+                        isEnd = (ch == "*");
+                }
+                return ret("comment", "comment");
+        }
+        
+        function tokenString(quote) {
+                return function(stream, state) {
+                        var escaped = false, next, end = false;
+                        while((next = stream.next()) != null) {
+                                if (next == quote && !escaped) {
+                                        end = true; break;
+                                }
+                                escaped = !escaped && next == "\\";
+                        }
+                        if (end || !(escaped || multiLineStrings))
+                                state.tokenize = tokenBase;
+                        return ret("string", "error");
+                };
+        }
+        
+        function tokenBase(stream, state) {
+                var ch = stream.next();
+                
+                // is a start of string?
+                if (ch == '"' || ch == "'")
+                        return chain(stream, state, tokenString(ch));
+                // is it one of the special chars
+                else if(/[\[\]{}\(\),;\.]/.test(ch))
+                        return ret(ch);
+                // is it a number?
+                else if(/\d/.test(ch)) {
+                        stream.eatWhile(/[\w\.]/);
+                        return ret("number", "number");
+                }
+                // multi line comment or operator
+                else if (ch == "/") {
+                        if (stream.eat("*")) {
+                                return chain(stream, state, tokenComment);
+                        }
+                        else {
+                                stream.eatWhile(isOperatorChar);
+                                return ret("operator", "operator");
+                        }
+                }
+                // single line comment or operator
+                else if (ch=="-") {
+                        if(stream.eat("-")){
+                                stream.skipToEnd();
+                                return ret("comment", "comment");
+                        }
+                        else {
+                                stream.eatWhile(isOperatorChar);
+                                return ret("operator", "operator");
+                        }
+                }
+                // is it an operator
+                else if (isOperatorChar.test(ch)) {
+                        stream.eatWhile(isOperatorChar);
+                        return ret("operator", "operator");
+                }
+                else {
+                        // get the while word
+                        stream.eatWhile(/[\w\$_]/);
+                        // is it one of the listed keywords?
+                        if (keywords && keywords.propertyIsEnumerable(stream.current().toUpperCase())) {
+                                if (stream.eat(")") || stream.eat(".")) {
+                                        //keywords can be used as variables like flatten(group), group.$0 etc..
+                                }
+                                else {
+                                        return ("keyword", "keyword");
+                                }
+                        }
+                        // is it one of the builtin functions?
+                        if (builtins && builtins.propertyIsEnumerable(stream.current().toUpperCase()))
+                        {
+                                return ("keyword", "variable-2")
+                        }
+                        // is it one of the listed types?
+                        if (types && types.propertyIsEnumerable(stream.current().toUpperCase()))
+                                return ("keyword", "variable-3")
+                        // default is a 'word'
+                        return ret("word", "pig-word");
+                }
+        }
+        
+        // Interface
+        return {
+                startState: function(basecolumn) {
+                        return {
+                                tokenize: tokenBase,
+                                startOfLine: true
+                        };
+                },
+                
+                token: function(stream, state) {
+                        if(stream.eatSpace()) return null;
+                        var style = state.tokenize(stream, state);
+                        return style;
+                }
+        };
+});
+
+(function() {
+        function keywords(str) {
+                var obj = {}, words = str.split(" ");
+                for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+                return obj;
+        }
+
+        // builtin funcs taken from trunk revision 1303237
+        var pBuiltins = "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 "; 
+        
+        // taken from QueryLexer.g
+        var pKeywords = "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 "; 
+        
+        // data types
+        var pTypes = "BOOLEAN INT LONG FLOAT DOUBLE CHARARRAY BYTEARRAY BAG TUPLE MAP "
+        
+        CodeMirror.defineMIME("text/x-pig", {
+         name: "pig",
+         builtins: keywords(pBuiltins),
+         keywords: keywords(pKeywords),
+         types: keywords(pTypes)
+         });
+}());