// CodeMirror, copyright © by Marijn Haverbeke and others // Distributed under an MIT license: codemirror.net/LICENSE

/**

* Author: Hans Engel
* Branched from CodeMirror's Scheme mode (by Koh Zi Han, based on implementation by Koh Zi Chun)
*/

(function(mod) {

if (typeof exports == "object" && typeof module == "object") // CommonJS
  mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
  define(["../../lib/codemirror"], mod);
else // Plain browser env
  mod(CodeMirror);

})(function(CodeMirror) { “use strict”;

CodeMirror.defineMode(“clojure”, function (options) {

var BUILTIN = "builtin", COMMENT = "comment", STRING = "string", CHARACTER = "string-2",
    ATOM = "atom", NUMBER = "number", BRACKET = "bracket", KEYWORD = "keyword", VAR = "variable";
var INDENT_WORD_SKIP = options.indentUnit || 2;
var NORMAL_INDENT_UNIT = options.indentUnit || 2;

function makeKeywords(str) {
    var obj = {}, words = str.split(" ");
    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
    return obj;
}

var atoms = makeKeywords("true false nil");

var keywords = makeKeywords(
  "defn defn- def def- defonce defmulti defmethod defmacro defstruct deftype defprotocol defrecord defproject deftest " +
  "slice defalias defhinted defmacro- defn-memo defnk defnk defonce- defunbound defunbound- defvar defvar- let letfn " +
  "do case cond condp for loop recur when when-not when-let when-first if if-let if-not . .. -> ->> doto and or dosync " +
  "doseq dotimes dorun doall load import unimport ns in-ns refer try catch finally throw with-open with-local-vars " +
  "binding gen-class gen-and-load-class gen-and-save-class handler-case handle");

var builtins = makeKeywords(
    "* *' *1 *2 *3 *agent* *allow-unresolved-vars* *assert* *clojure-version* *command-line-args* *compile-files* " +
    "*compile-path* *compiler-options* *data-readers* *e *err* *file* *flush-on-newline* *fn-loader* *in* " +
    "*math-context* *ns* *out* *print-dup* *print-length* *print-level* *print-meta* *print-readably* *read-eval* " +
    "*source-path* *unchecked-math* *use-context-classloader* *verbose-defrecords* *warn-on-reflection* + +' - -' -> " +
    "->> ->ArrayChunk ->Vec ->VecNode ->VecSeq -cache-protocol-fn -reset-methods .. / < <= = == > >= EMPTY-NODE accessor " +
    "aclone add-classpath add-watch agent agent-error agent-errors aget alength alias all-ns alter alter-meta! " +
    "alter-var-root amap ancestors and apply areduce array-map aset aset-boolean aset-byte aset-char aset-double " +
    "aset-float aset-int aset-long aset-short assert assoc assoc! assoc-in associative? atom await await-for await1 " +
    "bases bean bigdec bigint biginteger binding bit-and bit-and-not bit-clear bit-flip bit-not bit-or bit-set " +
    "bit-shift-left bit-shift-right bit-test bit-xor boolean boolean-array booleans bound-fn bound-fn* bound? butlast " +
    "byte byte-array bytes case cat cast char char-array char-escape-string char-name-string char? chars chunk chunk-append " +
    "chunk-buffer chunk-cons chunk-first chunk-next chunk-rest chunked-seq? class class? clear-agent-errors " +
    "clojure-version coll? comment commute comp comparator compare compare-and-set! compile complement completing concat cond condp " +
    "conj conj! cons constantly construct-proxy contains? count counted? create-ns create-struct cycle dec dec' decimal? " +
    "declare dedupe default-data-readers definline definterface defmacro defmethod defmulti defn defn- defonce defprotocol " +
    "defrecord defstruct deftype delay delay? deliver denominator deref derive descendants destructure disj disj! dissoc " +
    "dissoc! distinct distinct? doall dorun doseq dosync dotimes doto double double-array doubles drop drop-last " +
    "drop-while eduction empty empty? ensure enumeration-seq error-handler error-mode eval even? every-pred every? ex-data ex-info " +
    "extend extend-protocol extend-type extenders extends? false? ffirst file-seq filter filterv find find-keyword " +
    "find-ns find-protocol-impl find-protocol-method find-var first flatten float float-array float? floats flush fn fn? " +
    "fnext fnil for force format frequencies future future-call future-cancel future-cancelled? future-done? future? " +
    "gen-class gen-interface gensym get get-in get-method get-proxy-class get-thread-bindings get-validator group-by hash " +
    "hash-combine hash-map hash-set identical? identity if-let if-not ifn? import in-ns inc inc' init-proxy instance? " +
    "int int-array integer? interleave intern interpose into into-array ints io! isa? iterate iterator-seq juxt keep " +
    "keep-indexed key keys keyword keyword? last lazy-cat lazy-seq let letfn line-seq list list* list? load load-file " +
    "load-reader load-string loaded-libs locking long long-array longs loop macroexpand macroexpand-1 make-array " +
    "make-hierarchy map map-indexed map? mapcat mapv max max-key memfn memoize merge merge-with meta method-sig methods " +
    "min min-key mod munge name namespace namespace-munge neg? newline next nfirst nil? nnext not not-any? not-empty " +
    "not-every? not= ns ns-aliases ns-imports ns-interns ns-map ns-name ns-publics ns-refers ns-resolve ns-unalias " +
    "ns-unmap nth nthnext nthrest num number? numerator object-array odd? or parents partial partition partition-all " +
    "partition-by pcalls peek persistent! pmap pop pop! pop-thread-bindings pos? pr pr-str prefer-method prefers " +
    "primitives-classnames print print-ctor print-dup print-method print-simple print-str printf println println-str " +
    "prn prn-str promise proxy proxy-call-with-super proxy-mappings proxy-name proxy-super push-thread-bindings pvalues " +
    "quot rand rand-int rand-nth random-sample range ratio? rational? rationalize re-find re-groups re-matcher re-matches re-pattern " +
    "re-seq read read-line read-string realized? reduce reduce-kv reductions ref ref-history-count ref-max-history " +
    "ref-min-history ref-set refer refer-clojure reify release-pending-sends rem remove remove-all-methods " +
    "remove-method remove-ns remove-watch repeat repeatedly replace replicate require reset! reset-meta! resolve rest " +
    "restart-agent resultset-seq reverse reversible? rseq rsubseq satisfies? second select-keys send send-off seq seq? " +
    "seque sequence sequential? set set-error-handler! set-error-mode! set-validator! set? short short-array shorts " +
    "shuffle shutdown-agents slurp some some-fn sort sort-by sorted-map sorted-map-by sorted-set sorted-set-by sorted? " +
    "special-symbol? spit split-at split-with str string? struct struct-map subs subseq subvec supers swap! symbol " +
    "symbol? sync take take-last take-nth take-while test the-ns thread-bound? time to-array to-array-2d trampoline transduce " +
    "transient tree-seq true? type unchecked-add unchecked-add-int unchecked-byte unchecked-char unchecked-dec " +
    "unchecked-dec-int unchecked-divide-int unchecked-double unchecked-float unchecked-inc unchecked-inc-int " +
    "unchecked-int unchecked-long unchecked-multiply unchecked-multiply-int unchecked-negate unchecked-negate-int "+
    "unchecked-remainder-int unchecked-short unchecked-subtract unchecked-subtract-int underive unquote " +
    "unquote-splicing update update-in update-proxy use val vals var-get var-set var? vary-meta vec vector vector-of " +
    "vector? volatile! volatile? vreset! vswap! when when-first when-let when-not while with-bindings with-bindings* with-in-str with-loading-context " +
    "with-local-vars with-meta with-open with-out-str with-precision with-redefs with-redefs-fn xml-seq zero? zipmap " +
    "*default-data-reader-fn* as-> cond-> cond->> reduced reduced? send-via set-agent-send-executor! " +
    "set-agent-send-off-executor! some-> some->>");

var indentKeys = makeKeywords(
    // Built-ins
    "ns fn def defn defmethod bound-fn if if-not case condp when while when-not when-first do future comment doto " +
    "locking proxy with-open with-precision reify deftype defrecord defprotocol extend extend-protocol extend-type " +
    "try catch " +

    // Binding forms
    "let letfn binding loop for doseq dotimes when-let if-let " +

    // Data structures
    "defstruct struct-map assoc " +

    // clojure.test
    "testing deftest " +

    // contrib
    "handler-case handle dotrace deftrace");

var tests = {
    digit: /\d/,
    digit_or_colon: /[\d:]/,
    hex: /[0-9a-f]/i,
    sign: /[+-]/,
    exponent: /e/i,
    keyword_char: /[^\s\(\[\;\)\]]/,
    symbol: /[\w*+!\-\._?:<>\/\xa1-\uffff]/,
    block_indent: /^(?:def|with)[^\/]+$|\/(?:def|with)/
};

function stateStack(indent, type, prev) { // represents a state stack object
    this.indent = indent;
    this.type = type;
    this.prev = prev;
}

function pushStack(state, indent, type) {
    state.indentStack = new stateStack(indent, type, state.indentStack);
}

function popStack(state) {
    state.indentStack = state.indentStack.prev;
}

function isNumber(ch, stream){
    // hex
    if ( ch === '0' && stream.eat(/x/i) ) {
        stream.eatWhile(tests.hex);
        return true;
    }

    // leading sign
    if ( ( ch == '+' || ch == '-' ) && ( tests.digit.test(stream.peek()) ) ) {
      stream.eat(tests.sign);
      ch = stream.next();
    }

    if ( tests.digit.test(ch) ) {
        stream.eat(ch);
        stream.eatWhile(tests.digit);

        if ( '.' == stream.peek() ) {
            stream.eat('.');
            stream.eatWhile(tests.digit);
        } else if ('/' == stream.peek() ) {
            stream.eat('/');
            stream.eatWhile(tests.digit);
        }

        if ( stream.eat(tests.exponent) ) {
            stream.eat(tests.sign);
            stream.eatWhile(tests.digit);
        }

        return true;
    }

    return false;
}

// Eat character that starts after backslash \
function eatCharacter(stream) {
    var first = stream.next();
    // Read special literals: backspace, newline, space, return.
    // Just read all lowercase letters.
    if (first && first.match(/[a-z]/) && stream.match(/[a-z]+/, true)) {
        return;
    }
    // Read unicode character: \u1000 \uA0a1
    if (first === "u") {
        stream.match(/[0-9a-z]{4}/i, true);
    }
}

return {
    startState: function () {
        return {
            indentStack: null,
            indentation: 0,
            mode: false
        };
    },

    token: function (stream, state) {
        if (state.indentStack == null && stream.sol()) {
            // update indentation, but only if indentStack is empty
            state.indentation = stream.indentation();
        }

        // skip spaces
        if (state.mode != "string" && stream.eatSpace()) {
            return null;
        }
        var returnType = null;

        switch(state.mode){
            case "string": // multi-line string parsing mode
                var next, escaped = false;
                while ((next = stream.next()) != null) {
                    if (next == "\"" && !escaped) {

                        state.mode = false;
                        break;
                    }
                    escaped = !escaped && next == "\\";
                }
                returnType = STRING; // continue on in string mode
                break;
            default: // default parsing mode
                var ch = stream.next();

                if (ch == "\"") {
                    state.mode = "string";
                    returnType = STRING;
                } else if (ch == "\\") {
                    eatCharacter(stream);
                    returnType = CHARACTER;
                } else if (ch == "'" && !( tests.digit_or_colon.test(stream.peek()) )) {
                    returnType = ATOM;
                } else if (ch == ";") { // comment
                    stream.skipToEnd(); // rest of the line is a comment
                    returnType = COMMENT;
                } else if (isNumber(ch,stream)){
                    returnType = NUMBER;
                } else if (ch == "(" || ch == "[" || ch == "{" ) {
                    var keyWord = '', indentTemp = stream.column(), letter;
                    /**
                    Either
                    (indent-word ..
                    (non-indent-word ..
                    (;something else, bracket, etc.
                    */

                    if (ch == "(") while ((letter = stream.eat(tests.keyword_char)) != null) {
                        keyWord += letter;
                    }

                    if (keyWord.length > 0 && (indentKeys.propertyIsEnumerable(keyWord) ||
                                               tests.block_indent.test(keyWord))) { // indent-word
                        pushStack(state, indentTemp + INDENT_WORD_SKIP, ch);
                    } else { // non-indent word
                        // we continue eating the spaces
                        stream.eatSpace();
                        if (stream.eol() || stream.peek() == ";") {
                            // nothing significant after
                            // we restart indentation the user defined spaces after
                            pushStack(state, indentTemp + NORMAL_INDENT_UNIT, ch);
                        } else {
                            pushStack(state, indentTemp + stream.current().length, ch); // else we match
                        }
                    }
                    stream.backUp(stream.current().length - 1); // undo all the eating

                    returnType = BRACKET;
                } else if (ch == ")" || ch == "]" || ch == "}") {
                    returnType = BRACKET;
                    if (state.indentStack != null && state.indentStack.type == (ch == ")" ? "(" : (ch == "]" ? "[" :"{"))) {
                        popStack(state);
                    }
                } else if ( ch == ":" ) {
                    stream.eatWhile(tests.symbol);
                    return ATOM;
                } else {
                    stream.eatWhile(tests.symbol);

                    if (keywords && keywords.propertyIsEnumerable(stream.current())) {
                        returnType = KEYWORD;
                    } else if (builtins && builtins.propertyIsEnumerable(stream.current())) {
                        returnType = BUILTIN;
                    } else if (atoms && atoms.propertyIsEnumerable(stream.current())) {
                        returnType = ATOM;
                    } else {
                      returnType = VAR;
                    }
                }
        }

        return returnType;
    },

    indent: function (state) {
        if (state.indentStack == null) return state.indentation;
        return state.indentStack.indent;
    },

    closeBrackets: {pairs: "()[]{}\"\""},
    lineComment: ";;"
};

});

CodeMirror.defineMIME(“text/x-clojure”, “clojure”); CodeMirror.defineMIME(“text/x-clojurescript”, “clojure”); CodeMirror.defineMIME(“application/edn”, “clojure”);

});