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377 lines
12 KiB
JavaScript
377 lines
12 KiB
JavaScript
const CodeMirror = require('codemirror')
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CodeMirror.defineMode("nimrod", function(conf, parserConf) {
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var ERRORCLASS = 'error';
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function wordRegexp(words) {
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return new RegExp("^((" + words.join(")|(") + "))\\b");
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}
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var operators = new RegExp("\\=\\+\\-\\*\\/\\<\\>\\@\\$\\~\\&\\%\\|\\!\\?\\^\\:\\\\");
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var identifiers = new RegExp("^[_A-Za-z][_A-Za-z0-9]*");
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var commonkeywords = ['addr', 'asm', 'atomic',
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'bind', 'block', 'break', 'case', 'cast',
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'const', 'continue', 'converter',
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'discard', 'distinct', 'do',
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'elif', 'else', 'end', 'enum', 'except', 'export',
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'finally', 'for', 'from',
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'generic',
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'if', 'import', 'include', 'interface', 'iterator',
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'lambda', 'let',
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'macro', 'method', 'mixin', 'nil',
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'object', 'out',
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'proc', 'ptr',
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'raise', 'ref', 'return',
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'shared', 'static',
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'template', 'try', 'tuple', 'type',
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'using',
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'var',
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'when', 'while', 'with', 'without',
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'yield',
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// keyword operators
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'shl', 'shr', 'and', 'or', 'xor', 'not',
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'div', 'mod', 'is', 'isnot', 'in', 'as', 'of'];
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var commonBuiltins = ["int", "int8", "int16", "int32", "int64", "uint", "uint8", "uint16",
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"uint32", "uint64", "float", "float32", "float64", "bool", "char",
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"string", "cstring", "pointer", "range", "array", "openarray",
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"seq", "set", "Byte", "Natural", "Positive", "TObject", "PObject",
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"Conversion", "TResult", "TAddress", "BiggestInt", "BiggestFloat",
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"cchar", "cschar", "cshort", "cint", "csize", "cuchar", "cushort",
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"clong", "clonglong", "cfloat", "cdouble", "clongdouble", "cuint",
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"culong", "culonglong", "cchar", "cstringArray", "TEndian", "PFloat32",
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"PFloat64", "PInt64", "PInt32", "TGC_Strategy", "TFile", "TFileMode",
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"TFileHandle", "isMainModule", "CompileDate", "CompileTime", "NimrodVersion",
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"NimrodMajor", "NimrodMinor", "NimrodPatch", "cpuEndian", "hostOS", "hostCPU",
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"inf", "neginf", "nan", "QuitSuccess", "QuitFailure", "dbgLineHook", "stdin",
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"stdout", "stderr", "defined", "new", "high", "low", "sizeof", "succ", "pred",
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"inc", "dec", "newSeq", "len", "incl", "excl", "card", "ord", "chr", "ze",
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"ze64", "toU8", "toU16", "toU32", "abs", "min", "max", "add", "repr", "contains",
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"toFloat", "toBiggestFloat", "toInt", "toBiggestInt", "addQuitProc", "copy",
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"setLen", "newString", "zeroMem", "copyMem", "moveMem", "equalMem", "alloc",
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"alloc0", "realloc", "dealloc", "setLen", "assert", "swap", "getRefcount",
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"getCurrentException", "Msg", "getOccupiedMem", "getFreeMem", "getTotalMem",
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"isNil", "seqToPtr", "find", "pop", "GC_disable", "GC_enable", "GC_fullCollect",
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"GC_setStrategy", "GC_enableMarkAnd", "Sweep", "GC_disableMarkAnd", "Sweep",
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"GC_getStatistics", "GC_ref", "GC_ref", "GC_ref", "GC_unref", "GC_unref",
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"GC_unref", "quit", "OpenFile", "OpenFile", "CloseFile", "EndOfFile",
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"readChar", "FlushFile", "readFile", "write", "readLine", "writeln",
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"writeln", "getFileSize", "ReadBytes", "ReadChars", "readBuffer",
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"writeBytes", "writeChars", "writeBuffer", "setFilePos", "getFilePos",
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"fileHandle", "countdown", "countup", "items", "lines",
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"true", "false",
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// exceptions
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"E_Base", "EAsynch", "ESynch", "ESystem", "EIO", "EOS", "ERessourceExhausted",
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"EArithmetic", "EDivByZero", "EOverflow", "EAccessViolation", "EAssertionFailed",
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"EControlC", "EInvalidValue", "EOutOfMemory", "EInvalidIndex", "EInvalidField",
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"EOutOfRange", "EStackOverflow", "ENoExceptionToReraise", "EInvalidObjectAssignment",
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"EInvalidObject", "EInvalidLibrary", "EInvalidKey", "EInvalidObjectConversion",
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"EFloatingPoint", "EFloatInvalidOp", "EFloatDivByZero", "EFloatOverflow",
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"EFloatInexact", "EDeadThrea"];
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if(parserConf.extra_keywords != undefined)
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commonkeywords = commonkeywords.concat(parserConf.extra_keywords);
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if(parserConf.extra_builtins != undefined)
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commonBuiltins = commonBuiltins.concat(parserConf.extra_builtins);
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var keywords = wordRegexp(commonkeywords);
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var builtins = wordRegexp(commonBuiltins);
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var indentInfo = null;
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var stringPrefixes = new RegExp("^(('{3}|\"{3}|['\"]))", "i");
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// tokenizers
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function tokenBase(stream, state) {
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// Handle scope changes
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if (stream.sol()) {
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var scopeOffset = state.scopes[0].offset;
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if (stream.eatSpace()) {
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var lineOffset = stream.indentation();
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if (lineOffset > scopeOffset) {
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indentInfo = 'indent';
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} else if (lineOffset < scopeOffset) {
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indentInfo = 'dedent';
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}
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return null;
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} else {
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if (scopeOffset > 0) {
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dedent(stream, state);
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}
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}
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}
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if (stream.eatSpace())
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return null;
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var ch = stream.peek();
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// Handle Comments
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if (ch === '#') {
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stream.skipToEnd();
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return 'comment';
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}
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// Handle Number Literals
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if (stream.match(/^[0-9\.]/, false)) {
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var floatLiteral = false;
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// Floats
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if (stream.match(/^\d*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; }
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if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; }
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if (stream.match(/^\.\d+/)) { floatLiteral = true; }
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if (floatLiteral) {
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// Float literals may be "imaginary"
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stream.eat(/J/i);
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return 'number';
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}
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// Integers
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var intLiteral = false;
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// Hex
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if (stream.match(/^0x[0-9a-f]+/i)) { intLiteral = true; }
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// Binary
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if (stream.match(/^0b[01]+/i)) { intLiteral = true; }
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// Octal
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if (stream.match(/^0o[0-7]+/i)) { intLiteral = true; }
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// Decimal
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if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) {
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// Decimal literals may be "imaginary"
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stream.eat(/J/i);
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// TODO - Can you have imaginary longs?
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intLiteral = true;
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}
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// Zero by itself with no other piece of number.
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if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; }
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if (intLiteral) {
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// Integer literals may be "long"
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stream.eat(/L/i);
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return 'number';
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}
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}
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// Handle Strings
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if (stream.match(stringPrefixes)) {
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state.tokenize = tokenStringFactory(stream.current());
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return state.tokenize(stream, state);
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}
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if (stream.match(operators))
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return 'operator';
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if (stream.match(keywords))
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return 'keyword';
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if (stream.match(builtins))
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return 'builtin';
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if (stream.match(identifiers)) {
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if (state.lastToken != null &&
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state.lastToken.match(/proc|iterator|macro|template|class|converter/)) {
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return 'def';
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}
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return 'variable';
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}
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// Handle non-detected items
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stream.next();
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return ERRORCLASS;
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}
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function tokenStringFactory(delimiter) {
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var singleline = delimiter.length == 1;
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var OUTCLASS = 'string';
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function tokenString(stream, state) {
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while (!stream.eol()) {
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stream.eatWhile(/[^'"\\]/);
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if (stream.eat('\\')) {
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stream.next();
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if (singleline && stream.eol()) {
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return OUTCLASS;
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}
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} else if (stream.match(delimiter)) {
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state.tokenize = tokenBase;
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return OUTCLASS;
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} else {
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stream.eat(/['"]/);
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}
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}
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if (singleline) {
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if (parserConf.singleLineStringErrors) {
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return ERRORCLASS;
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} else {
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state.tokenize = tokenBase;
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}
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}
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return OUTCLASS;
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}
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tokenString.isString = true;
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return tokenString;
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}
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function indent(stream, state, type) {
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type = type || 'nim';
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var indentUnit = 0;
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if (type === 'nim') {
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if (state.scopes[0].type !== 'nim') {
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state.scopes[0].offset = stream.indentation();
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return;
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}
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for (var i = 0; i < state.scopes.length; ++i) {
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if (state.scopes[i].type === 'nim') {
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indentUnit = state.scopes[i].offset + conf.indentUnit;
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break;
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}
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}
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} else {
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indentUnit = stream.column() + stream.current().length;
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}
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state.scopes.unshift({
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offset: indentUnit,
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type: type
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});
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}
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function dedent(stream, state, type) {
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type = type || 'nim';
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if (state.scopes.length == 1) return;
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if (state.scopes[0].type === 'nim') {
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var _indent = stream.indentation();
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var _indent_index = -1;
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for (var i = 0; i < state.scopes.length; ++i) {
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if (_indent === state.scopes[i].offset) {
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_indent_index = i;
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break;
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}
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}
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if (_indent_index === -1) {
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return true;
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}
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while (state.scopes[0].offset !== _indent) {
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state.scopes.shift();
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}
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return false;
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} else {
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if (type === 'nim') {
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state.scopes[0].offset = stream.indentation();
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return false;
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} else {
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if (state.scopes[0].type != type) {
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return true;
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}
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state.scopes.shift();
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return false;
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}
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}
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}
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function tokenLexer(stream, state) {
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indentInfo = null;
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var style = state.tokenize(stream, state);
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var current = stream.current();
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// Handle '.' connected identifiers
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if (current === '.') {
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style = stream.match(identifiers, false) ? null : ERRORCLASS;
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if (style === null && state.lastStyle === 'meta') {
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// Apply 'meta' style to '.' connected identifiers when
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// appropriate.
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style = 'meta';
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}
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return style;
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}
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if ((style === 'variable' || style === 'builtin')
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&& state.lastStyle === 'meta') {
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style = 'meta';
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}
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// Handle scope changes.
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if (current.match(/return|break|continue|raise/) ||
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(current === 'discard' && stream.eol()))
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state.dedent += 1;
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if (current === 'lambda' || current === 'proc')
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state.lambda = true;
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var delimiter_index = '[({'.indexOf(current);
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if (delimiter_index !== -1) {
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indent(stream, state, '])}'.slice(delimiter_index, delimiter_index+1));
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}
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else if(stream.eol() && current.match(/\=|\:|import|include|type|const|var|let/)) {
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indent(stream, state);
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}
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if (indentInfo === 'dedent') {
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if (dedent(stream, state)) {
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return ERRORCLASS;
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}
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}
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delimiter_index = '])}'.indexOf(current);
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if (delimiter_index !== -1) {
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if (dedent(stream, state, current)) {
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return ERRORCLASS;
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}
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}
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if (state.dedent > 0 && stream.eol() && state.scopes[0].type == 'nim') {
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if (state.scopes.length > 1) state.scopes.shift();
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state.dedent -= 1;
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}
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return style;
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}
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var external = {
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startState: function(basecolumn) {
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return {
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tokenize: tokenBase,
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scopes: [{offset:basecolumn || 0, type:'nim'}],
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lastStyle: null,
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lastToken: null,
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lambda: false,
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dedent: 0
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};
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},
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token: function(stream, state) {
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var style = tokenLexer(stream, state);
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state.lastStyle = style;
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var current = stream.current();
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if (current && style)
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state.lastToken = current;
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if (stream.eol() && state.lambda)
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state.lambda = false;
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return style;
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},
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indent: function(state) {
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if (state.tokenize != tokenBase)
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return state.tokenize.isString ? CodeMirror.Pass : 0;
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return state.scopes[0].offset;
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},
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lineComment: "#",
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fold: "indent"
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};
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return external;
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});
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CodeMirror.defineMIME("text/x-nimrod", "nimrod");
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