Add a webpage for Python problems

1 files changed, 358 insertions, 0 deletions

diff --git a/js/codemirror/python.js b/js/codemirror/python.js
new file mode 100644
index 0000000..e5a0971
--- /dev/null
+++ b/js/codemirror/python.js
@@ -0,0 +1,358 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(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";
+
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  var wordOperators = wordRegexp(["and", "or", "not", "is"]);
+  var commonKeywords = ["as", "assert", "break", "class", "continue",
+                        "def", "del", "elif", "else", "except", "finally",
+                        "for", "from", "global", "if", "import",
+                        "lambda", "pass", "raise", "return",
+                        "try", "while", "with", "yield", "in"];
+  var commonBuiltins = ["abs", "all", "any", "bin", "bool", "bytearray", "callable", "chr",
+                        "classmethod", "compile", "complex", "delattr", "dict", "dir", "divmod",
+                        "enumerate", "eval", "filter", "float", "format", "frozenset",
+                        "getattr", "globals", "hasattr", "hash", "help", "hex", "id",
+                        "input", "int", "isinstance", "issubclass", "iter", "len",
+                        "list", "locals", "map", "max", "memoryview", "min", "next",
+                        "object", "oct", "open", "ord", "pow", "property", "range",
+                        "repr", "reversed", "round", "set", "setattr", "slice",
+                        "sorted", "staticmethod", "str", "sum", "super", "tuple",
+                        "type", "vars", "zip", "__import__", "NotImplemented",
+                        "Ellipsis", "__debug__"];
+  var py2 = {builtins: ["apply", "basestring", "buffer", "cmp", "coerce", "execfile",
+                        "file", "intern", "long", "raw_input", "reduce", "reload",
+                        "unichr", "unicode", "xrange", "False", "True", "None"],
+             keywords: ["exec", "print"]};
+  var py3 = {builtins: ["ascii", "bytes", "exec", "print"],
+             keywords: ["nonlocal", "False", "True", "None", "async", "await"]};
+
+  CodeMirror.registerHelper("hintWords", "python", commonKeywords.concat(commonBuiltins));
+
+  function top(state) {
+    return state.scopes[state.scopes.length - 1];
+  }
+
+  CodeMirror.defineMode("python", function(conf, parserConf) {
+    var ERRORCLASS = "error";
+
+    var singleDelimiters = parserConf.singleDelimiters || new RegExp("^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]");
+    var doubleOperators = parserConf.doubleOperators || new RegExp("^((==)|(!=)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))");
+    var doubleDelimiters = parserConf.doubleDelimiters || new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))");
+    var tripleDelimiters = parserConf.tripleDelimiters || new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))");
+
+    if (parserConf.version && parseInt(parserConf.version, 10) == 3){
+        // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator
+        var singleOperators = parserConf.singleOperators || new RegExp("^[\\+\\-\\*/%&|\\^~<>!@]");
+        var identifiers = parserConf.identifiers|| new RegExp("^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*");
+    } else {
+        var singleOperators = parserConf.singleOperators || new RegExp("^[\\+\\-\\*/%&|\\^~<>!]");
+        var identifiers = parserConf.identifiers|| new RegExp("^[_A-Za-z][_A-Za-z0-9]*");
+    }
+
+    var hangingIndent = parserConf.hangingIndent || conf.indentUnit;
+
+    var myKeywords = commonKeywords, myBuiltins = commonBuiltins;
+    if(parserConf.extra_keywords != undefined){
+      myKeywords = myKeywords.concat(parserConf.extra_keywords);
+    }
+    if(parserConf.extra_builtins != undefined){
+      myBuiltins = myBuiltins.concat(parserConf.extra_builtins);
+    }
+    if (parserConf.version && parseInt(parserConf.version, 10) == 3) {
+      myKeywords = myKeywords.concat(py3.keywords);
+      myBuiltins = myBuiltins.concat(py3.builtins);
+      var stringPrefixes = new RegExp("^(([rb]|(br))?('{3}|\"{3}|['\"]))", "i");
+    } else {
+      myKeywords = myKeywords.concat(py2.keywords);
+      myBuiltins = myBuiltins.concat(py2.builtins);
+      var stringPrefixes = new RegExp("^(([rub]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i");
+    }
+    var keywords = wordRegexp(myKeywords);
+    var builtins = wordRegexp(myBuiltins);
+
+    // tokenizers
+    function tokenBase(stream, state) {
+      // Handle scope changes
+      if (stream.sol() && top(state).type == "py") {
+        var scopeOffset = top(state).offset;
+        if (stream.eatSpace()) {
+          var lineOffset = stream.indentation();
+          if (lineOffset > scopeOffset)
+            pushScope(stream, state, "py");
+          else if (lineOffset < scopeOffset && dedent(stream, state))
+            state.errorToken = true;
+          return null;
+        } else {
+          var style = tokenBaseInner(stream, state);
+          if (scopeOffset > 0 && dedent(stream, state))
+            style += " " + ERRORCLASS;
+          return style;
+        }
+      }
+      return tokenBaseInner(stream, state);
+    }
+
+    function tokenBaseInner(stream, state) {
+      if (stream.eatSpace()) return null;
+
+      var ch = stream.peek();
+
+      // Handle Comments
+      if (ch == "#") {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      // Handle Number Literals
+      if (stream.match(/^[0-9\.]/, false)) {
+        var floatLiteral = false;
+        // Floats
+        if (stream.match(/^\d*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; }
+        if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; }
+        if (stream.match(/^\.\d+/)) { floatLiteral = true; }
+        if (floatLiteral) {
+          // Float literals may be "imaginary"
+          stream.eat(/J/i);
+          return "number";
+        }
+        // Integers
+        var intLiteral = false;
+        // Hex
+        if (stream.match(/^0x[0-9a-f]+/i)) intLiteral = true;
+        // Binary
+        if (stream.match(/^0b[01]+/i)) intLiteral = true;
+        // Octal
+        if (stream.match(/^0o[0-7]+/i)) intLiteral = true;
+        // Decimal
+        if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) {
+          // Decimal literals may be "imaginary"
+          stream.eat(/J/i);
+          // TODO - Can you have imaginary longs?
+          intLiteral = true;
+        }
+        // Zero by itself with no other piece of number.
+        if (stream.match(/^0(?![\dx])/i)) intLiteral = true;
+        if (intLiteral) {
+          // Integer literals may be "long"
+          stream.eat(/L/i);
+          return "number";
+        }
+      }
+
+      // Handle Strings
+      if (stream.match(stringPrefixes)) {
+        state.tokenize = tokenStringFactory(stream.current());
+        return state.tokenize(stream, state);
+      }
+
+      // Handle operators and Delimiters
+      if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters))
+        return null;
+
+      if (stream.match(doubleOperators) || stream.match(singleOperators))
+        return "operator";
+
+      if (stream.match(singleDelimiters))
+        return null;
+
+      if (stream.match(keywords) || stream.match(wordOperators))
+        return "keyword";
+
+      if (stream.match(builtins))
+        return "builtin";
+
+      if (stream.match(/^(self|cls)\b/))
+        return "variable-2";
+
+      if (stream.match(identifiers)) {
+        if (state.lastToken == "def" || state.lastToken == "class")
+          return "def";
+        return "variable";
+      }
+
+      // Handle non-detected items
+      stream.next();
+      return ERRORCLASS;
+    }
+
+    function tokenStringFactory(delimiter) {
+      while ("rub".indexOf(delimiter.charAt(0).toLowerCase()) >= 0)
+        delimiter = delimiter.substr(1);
+
+      var singleline = delimiter.length == 1;
+      var OUTCLASS = "string";
+
+      function tokenString(stream, state) {
+        while (!stream.eol()) {
+          stream.eatWhile(/[^'"\\]/);
+          if (stream.eat("\\")) {
+            stream.next();
+            if (singleline && stream.eol())
+              return OUTCLASS;
+          } else if (stream.match(delimiter)) {
+            state.tokenize = tokenBase;
+            return OUTCLASS;
+          } else {
+            stream.eat(/['"]/);
+          }
+        }
+        if (singleline) {
+          if (parserConf.singleLineStringErrors)
+            return ERRORCLASS;
+          else
+            state.tokenize = tokenBase;
+        }
+        return OUTCLASS;
+      }
+      tokenString.isString = true;
+      return tokenString;
+    }
+
+    function pushScope(stream, state, type) {
+      var offset = 0, align = null;
+      if (type == "py") {
+        while (top(state).type != "py")
+          state.scopes.pop();
+      }
+      offset = top(state).offset + (type == "py" ? conf.indentUnit : hangingIndent);
+      if (type != "py" && !stream.match(/^(\s|#.*)*$/, false))
+        align = stream.column() + 1;
+      state.scopes.push({offset: offset, type: type, align: align});
+    }
+
+    function dedent(stream, state) {
+      var indented = stream.indentation();
+      while (top(state).offset > indented) {
+        if (top(state).type != "py") return true;
+        state.scopes.pop();
+      }
+      return top(state).offset != indented;
+    }
+
+    function tokenLexer(stream, state) {
+      var style = state.tokenize(stream, state);
+      var current = stream.current();
+
+      // Handle '.' connected identifiers
+      if (current == ".") {
+        style = stream.match(identifiers, false) ? null : ERRORCLASS;
+        if (style == null && state.lastStyle == "meta") {
+          // Apply 'meta' style to '.' connected identifiers when
+          // appropriate.
+          style = "meta";
+        }
+        return style;
+      }
+
+      // Handle decorators
+      if (current == "@"){
+        if(parserConf.version && parseInt(parserConf.version, 10) == 3){
+            return stream.match(identifiers, false) ? "meta" : "operator";
+        } else {
+            return stream.match(identifiers, false) ? "meta" : ERRORCLASS;
+        }
+      }
+
+      if ((style == "variable" || style == "builtin")
+          && state.lastStyle == "meta")
+        style = "meta";
+
+      // Handle scope changes.
+      if (current == "pass" || current == "return")
+        state.dedent += 1;
+
+      if (current == "lambda") state.lambda = true;
+      if (current == ":" && !state.lambda && top(state).type == "py")
+        pushScope(stream, state, "py");
+
+      var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1;
+      if (delimiter_index != -1)
+        pushScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
+
+      delimiter_index = "])}".indexOf(current);
+      if (delimiter_index != -1) {
+        if (top(state).type == current) state.scopes.pop();
+        else return ERRORCLASS;
+      }
+      if (state.dedent > 0 && stream.eol() && top(state).type == "py") {
+        if (state.scopes.length > 1) state.scopes.pop();
+        state.dedent -= 1;
+      }
+
+      return style;
+    }
+
+    var external = {
+      startState: function(basecolumn) {
+        return {
+          tokenize: tokenBase,
+          scopes: [{offset: basecolumn || 0, type: "py", align: null}],
+          lastStyle: null,
+          lastToken: null,
+          lambda: false,
+          dedent: 0
+        };
+      },
+
+      token: function(stream, state) {
+        var addErr = state.errorToken;
+        if (addErr) state.errorToken = false;
+        var style = tokenLexer(stream, state);
+
+        state.lastStyle = style;
+
+        var current = stream.current();
+        if (current && style)
+          state.lastToken = current;
+
+        if (stream.eol() && state.lambda)
+          state.lambda = false;
+        return addErr ? style + " " + ERRORCLASS : style;
+      },
+
+      indent: function(state, textAfter) {
+        if (state.tokenize != tokenBase)
+          return state.tokenize.isString ? CodeMirror.Pass : 0;
+
+        var scope = top(state);
+        var closing = textAfter && textAfter.charAt(0) == scope.type;
+        if (scope.align != null)
+          return scope.align - (closing ? 1 : 0);
+        else if (closing && state.scopes.length > 1)
+          return state.scopes[state.scopes.length - 2].offset;
+        else
+          return scope.offset;
+      },
+
+      closeBrackets: {triples: "'\""},
+      lineComment: "#",
+      fold: "indent"
+    };
+    return external;
+  });
+
+  CodeMirror.defineMIME("text/x-python", "python");
+
+  var words = function(str) { return str.split(" "); };
+
+  CodeMirror.defineMIME("text/x-cython", {
+    name: "python",
+    extra_keywords: words("by cdef cimport cpdef ctypedef enum except"+
+                          "extern gil include nogil property public"+
+                          "readonly struct union DEF IF ELIF ELSE")
+  });
+
+});