python.js (12313B)
1 // CodeMirror, copyright (c) by Marijn Haverbeke and others 2 // Distributed under an MIT license: http://codemirror.net/LICENSE 3 4 (function(mod) { 5 if (typeof exports == "object" && typeof module == "object") // CommonJS 6 mod(require("../../lib/codemirror")); 7 else if (typeof define == "function" && define.amd) // AMD 8 define(["../../lib/codemirror"], mod); 9 else // Plain browser env 10 mod(CodeMirror); 11 })(function(CodeMirror) { 12 "use strict"; 13 14 function wordRegexp(words) { 15 return new RegExp("^((" + words.join(")|(") + "))\\b"); 16 } 17 18 var wordOperators = wordRegexp(["and", "or", "not", "is"]); 19 var commonKeywords = ["as", "assert", "break", "class", "continue", 20 "def", "del", "elif", "else", "except", "finally", 21 "for", "from", "global", "if", "import", 22 "lambda", "pass", "raise", "return", 23 "try", "while", "with", "yield", "in"]; 24 var commonBuiltins = ["abs", "all", "any", "bin", "bool", "bytearray", "callable", "chr", 25 "classmethod", "compile", "complex", "delattr", "dict", "dir", "divmod", 26 "enumerate", "eval", "filter", "float", "format", "frozenset", 27 "getattr", "globals", "hasattr", "hash", "help", "hex", "id", 28 "input", "int", "isinstance", "issubclass", "iter", "len", 29 "list", "locals", "map", "max", "memoryview", "min", "next", 30 "object", "oct", "open", "ord", "pow", "property", "range", 31 "repr", "reversed", "round", "set", "setattr", "slice", 32 "sorted", "staticmethod", "str", "sum", "super", "tuple", 33 "type", "vars", "zip", "__import__", "NotImplemented", 34 "Ellipsis", "__debug__"]; 35 CodeMirror.registerHelper("hintWords", "python", commonKeywords.concat(commonBuiltins)); 36 37 function top(state) { 38 return state.scopes[state.scopes.length - 1]; 39 } 40 41 CodeMirror.defineMode("python", function(conf, parserConf) { 42 var ERRORCLASS = "error"; 43 44 var delimiters = parserConf.delimiters || parserConf.singleDelimiters || /^[\(\)\[\]\{\}@,:`=;\.]/; 45 // (Backwards-compatiblity with old, cumbersome config system) 46 var operators = [parserConf.singleOperators, parserConf.doubleOperators, parserConf.doubleDelimiters, parserConf.tripleDelimiters, 47 parserConf.operators || /^([-+*/%\/&|^]=?|[<>=]+|\/\/=?|\*\*=?|!=|[~!@])/] 48 for (var i = 0; i < operators.length; i++) if (!operators[i]) operators.splice(i--, 1) 49 50 var hangingIndent = parserConf.hangingIndent || conf.indentUnit; 51 52 var myKeywords = commonKeywords, myBuiltins = commonBuiltins; 53 if (parserConf.extra_keywords != undefined) 54 myKeywords = myKeywords.concat(parserConf.extra_keywords); 55 56 if (parserConf.extra_builtins != undefined) 57 myBuiltins = myBuiltins.concat(parserConf.extra_builtins); 58 59 var py3 = !(parserConf.version && Number(parserConf.version) < 3) 60 if (py3) { 61 // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator 62 var identifiers = parserConf.identifiers|| /^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*/; 63 myKeywords = myKeywords.concat(["nonlocal", "False", "True", "None", "async", "await"]); 64 myBuiltins = myBuiltins.concat(["ascii", "bytes", "exec", "print"]); 65 var stringPrefixes = new RegExp("^(([rbuf]|(br))?('{3}|\"{3}|['\"]))", "i"); 66 } else { 67 var identifiers = parserConf.identifiers|| /^[_A-Za-z][_A-Za-z0-9]*/; 68 myKeywords = myKeywords.concat(["exec", "print"]); 69 myBuiltins = myBuiltins.concat(["apply", "basestring", "buffer", "cmp", "coerce", "execfile", 70 "file", "intern", "long", "raw_input", "reduce", "reload", 71 "unichr", "unicode", "xrange", "False", "True", "None"]); 72 var stringPrefixes = new RegExp("^(([rubf]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i"); 73 } 74 var keywords = wordRegexp(myKeywords); 75 var builtins = wordRegexp(myBuiltins); 76 77 // tokenizers 78 function tokenBase(stream, state) { 79 if (stream.sol()) state.indent = stream.indentation() 80 // Handle scope changes 81 if (stream.sol() && top(state).type == "py") { 82 var scopeOffset = top(state).offset; 83 if (stream.eatSpace()) { 84 var lineOffset = stream.indentation(); 85 if (lineOffset > scopeOffset) 86 pushPyScope(state); 87 else if (lineOffset < scopeOffset && dedent(stream, state) && stream.peek() != "#") 88 state.errorToken = true; 89 return null; 90 } else { 91 var style = tokenBaseInner(stream, state); 92 if (scopeOffset > 0 && dedent(stream, state)) 93 style += " " + ERRORCLASS; 94 return style; 95 } 96 } 97 return tokenBaseInner(stream, state); 98 } 99 100 function tokenBaseInner(stream, state) { 101 if (stream.eatSpace()) return null; 102 103 var ch = stream.peek(); 104 105 // Handle Comments 106 if (ch == "#") { 107 stream.skipToEnd(); 108 return "comment"; 109 } 110 111 // Handle Number Literals 112 if (stream.match(/^[0-9\.]/, false)) { 113 var floatLiteral = false; 114 // Floats 115 if (stream.match(/^[\d_]*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; } 116 if (stream.match(/^[\d_]+\.\d*/)) { floatLiteral = true; } 117 if (stream.match(/^\.\d+/)) { floatLiteral = true; } 118 if (floatLiteral) { 119 // Float literals may be "imaginary" 120 stream.eat(/J/i); 121 return "number"; 122 } 123 // Integers 124 var intLiteral = false; 125 // Hex 126 if (stream.match(/^0x[0-9a-f_]+/i)) intLiteral = true; 127 // Binary 128 if (stream.match(/^0b[01_]+/i)) intLiteral = true; 129 // Octal 130 if (stream.match(/^0o[0-7_]+/i)) intLiteral = true; 131 // Decimal 132 if (stream.match(/^[1-9][\d_]*(e[\+\-]?[\d_]+)?/)) { 133 // Decimal literals may be "imaginary" 134 stream.eat(/J/i); 135 // TODO - Can you have imaginary longs? 136 intLiteral = true; 137 } 138 // Zero by itself with no other piece of number. 139 if (stream.match(/^0(?![\dx])/i)) intLiteral = true; 140 if (intLiteral) { 141 // Integer literals may be "long" 142 stream.eat(/L/i); 143 return "number"; 144 } 145 } 146 147 // Handle Strings 148 if (stream.match(stringPrefixes)) { 149 state.tokenize = tokenStringFactory(stream.current()); 150 return state.tokenize(stream, state); 151 } 152 153 for (var i = 0; i < operators.length; i++) 154 if (stream.match(operators[i])) return "operator" 155 156 if (stream.match(delimiters)) return "punctuation"; 157 158 if (state.lastToken == "." && stream.match(identifiers)) 159 return "property"; 160 161 if (stream.match(keywords) || stream.match(wordOperators)) 162 return "keyword"; 163 164 if (stream.match(builtins)) 165 return "builtin"; 166 167 if (stream.match(/^(self|cls)\b/)) 168 return "variable-2"; 169 170 if (stream.match(identifiers)) { 171 if (state.lastToken == "def" || state.lastToken == "class") 172 return "def"; 173 return "variable"; 174 } 175 176 // Handle non-detected items 177 stream.next(); 178 return ERRORCLASS; 179 } 180 181 function tokenStringFactory(delimiter) { 182 while ("rubf".indexOf(delimiter.charAt(0).toLowerCase()) >= 0) 183 delimiter = delimiter.substr(1); 184 185 var singleline = delimiter.length == 1; 186 var OUTCLASS = "string"; 187 188 function tokenString(stream, state) { 189 while (!stream.eol()) { 190 stream.eatWhile(/[^'"\\]/); 191 if (stream.eat("\\")) { 192 stream.next(); 193 if (singleline && stream.eol()) 194 return OUTCLASS; 195 } else if (stream.match(delimiter)) { 196 state.tokenize = tokenBase; 197 return OUTCLASS; 198 } else { 199 stream.eat(/['"]/); 200 } 201 } 202 if (singleline) { 203 if (parserConf.singleLineStringErrors) 204 return ERRORCLASS; 205 else 206 state.tokenize = tokenBase; 207 } 208 return OUTCLASS; 209 } 210 tokenString.isString = true; 211 return tokenString; 212 } 213 214 function pushPyScope(state) { 215 while (top(state).type != "py") state.scopes.pop() 216 state.scopes.push({offset: top(state).offset + conf.indentUnit, 217 type: "py", 218 align: null}) 219 } 220 221 function pushBracketScope(stream, state, type) { 222 var align = stream.match(/^([\s\[\{\(]|#.*)*$/, false) ? null : stream.column() + 1 223 state.scopes.push({offset: state.indent + hangingIndent, 224 type: type, 225 align: align}) 226 } 227 228 function dedent(stream, state) { 229 var indented = stream.indentation(); 230 while (state.scopes.length > 1 && top(state).offset > indented) { 231 if (top(state).type != "py") return true; 232 state.scopes.pop(); 233 } 234 return top(state).offset != indented; 235 } 236 237 function tokenLexer(stream, state) { 238 if (stream.sol()) state.beginningOfLine = true; 239 240 var style = state.tokenize(stream, state); 241 var current = stream.current(); 242 243 // Handle decorators 244 if (state.beginningOfLine && current == "@") 245 return stream.match(identifiers, false) ? "meta" : py3 ? "operator" : ERRORCLASS; 246 247 if (/\S/.test(current)) state.beginningOfLine = false; 248 249 if ((style == "variable" || style == "builtin") 250 && state.lastToken == "meta") 251 style = "meta"; 252 253 // Handle scope changes. 254 if (current == "pass" || current == "return") 255 state.dedent += 1; 256 257 if (current == "lambda") state.lambda = true; 258 if (current == ":" && !state.lambda && top(state).type == "py") 259 pushPyScope(state); 260 261 var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1; 262 if (delimiter_index != -1) 263 pushBracketScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1)); 264 265 delimiter_index = "])}".indexOf(current); 266 if (delimiter_index != -1) { 267 if (top(state).type == current) state.indent = state.scopes.pop().offset - hangingIndent 268 else return ERRORCLASS; 269 } 270 if (state.dedent > 0 && stream.eol() && top(state).type == "py") { 271 if (state.scopes.length > 1) state.scopes.pop(); 272 state.dedent -= 1; 273 } 274 275 return style; 276 } 277 278 var external = { 279 startState: function(basecolumn) { 280 return { 281 tokenize: tokenBase, 282 scopes: [{offset: basecolumn || 0, type: "py", align: null}], 283 indent: basecolumn || 0, 284 lastToken: null, 285 lambda: false, 286 dedent: 0 287 }; 288 }, 289 290 token: function(stream, state) { 291 var addErr = state.errorToken; 292 if (addErr) state.errorToken = false; 293 var style = tokenLexer(stream, state); 294 295 if (style && style != "comment") 296 state.lastToken = (style == "keyword" || style == "punctuation") ? stream.current() : style; 297 if (style == "punctuation") style = null; 298 299 if (stream.eol() && state.lambda) 300 state.lambda = false; 301 return addErr ? style + " " + ERRORCLASS : style; 302 }, 303 304 indent: function(state, textAfter) { 305 if (state.tokenize != tokenBase) 306 return state.tokenize.isString ? CodeMirror.Pass : 0; 307 308 var scope = top(state), closing = scope.type == textAfter.charAt(0) 309 if (scope.align != null) 310 return scope.align - (closing ? 1 : 0) 311 else 312 return scope.offset - (closing ? hangingIndent : 0) 313 }, 314 315 electricInput: /^\s*[\}\]\)]$/, 316 closeBrackets: {triples: "'\""}, 317 lineComment: "#", 318 fold: "indent" 319 }; 320 return external; 321 }); 322 323 CodeMirror.defineMIME("text/x-python", "python"); 324 325 var words = function(str) { return str.split(" "); }; 326 327 CodeMirror.defineMIME("text/x-cython", { 328 name: "python", 329 extra_keywords: words("by cdef cimport cpdef ctypedef enum except "+ 330 "extern gil include nogil property public "+ 331 "readonly struct union DEF IF ELIF ELSE") 332 }); 333 334 });