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| System.register([], function (_export) {
'use strict';
var Token, Lexer, Scanner, OPERATORS, $EOF, $TAB, $LF, $VTAB, $FF, $CR, $SPACE, $BANG, $DQ, $$, $PERCENT, $AMPERSAND, $SQ, $LPAREN, $RPAREN, $STAR, $PLUS, $COMMA, $MINUS, $PERIOD, $SLASH, $COLON, $SEMICOLON, $LT, $EQ, $GT, $QUESTION, $0, $9, $A, $E, $Z, $LBRACKET, $BACKSLASH, $RBRACKET, $CARET, $_, $a, $e, $f, $n, $r, $t, $u, $v, $z, $LBRACE, $BAR, $RBRACE, $NBSP;
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
function isWhitespace(code) {
return code >= $TAB && code <= $SPACE || code === $NBSP;
}
function isIdentifierStart(code) {
return $a <= code && code <= $z || $A <= code && code <= $Z || code === $_ || code === $$;
}
function isIdentifierPart(code) {
return $a <= code && code <= $z || $A <= code && code <= $Z || $0 <= code && code <= $9 || code === $_ || code === $$;
}
function isDigit(code) {
return $0 <= code && code <= $9;
}
function isExponentStart(code) {
return code === $e || code === $E;
}
function isExponentSign(code) {
return code === $MINUS || code === $PLUS;
}
function unescape(code) {
switch (code) {
case $n:
return $LF;
case $f:
return $FF;
case $r:
return $CR;
case $t:
return $TAB;
case $v:
return $VTAB;
default:
return code;
}
}
function assert(condition, message) {
Iif (!condition) {
throw message || 'Assertion failed';
}
}
return {
setters: [],
execute: function () {
Token = (function () {
function Token(index, text) {
_classCallCheck(this, Token);
this.index = index;
this.text = text;
}
Token.prototype.withOp = function withOp(op) {
this.opKey = op;
return this;
};
Token.prototype.withGetterSetter = function withGetterSetter(key) {
this.key = key;
return this;
};
Token.prototype.withValue = function withValue(value) {
this.value = value;
return this;
};
Token.prototype.toString = function toString() {
return 'Token(' + this.text + ')';
};
return Token;
})();
_export('Token', Token);
Lexer = (function () {
function Lexer() {
_classCallCheck(this, Lexer);
}
Lexer.prototype.lex = function lex(text) {
var scanner = new Scanner(text);
var tokens = [];
var token = scanner.scanToken();
while (token) {
tokens.push(token);
token = scanner.scanToken();
}
return tokens;
};
return Lexer;
})();
_export('Lexer', Lexer);
Scanner = (function () {
function Scanner(input) {
_classCallCheck(this, Scanner);
this.input = input;
this.length = input.length;
this.peek = 0;
this.index = -1;
this.advance();
}
Scanner.prototype.scanToken = function scanToken() {
// Skip whitespace.
while (this.peek <= $SPACE) {
if (++this.index >= this.length) {
this.peek = $EOF;
return null;
} else {
this.peek = this.input.charCodeAt(this.index);
}
}
// Handle identifiers and numbers.
if (isIdentifierStart(this.peek)) {
return this.scanIdentifier();
}
if (isDigit(this.peek)) {
return this.scanNumber(this.index);
}
var start = this.index;
switch (this.peek) {
case $PERIOD:
this.advance();
return isDigit(this.peek) ? this.scanNumber(start) : new Token(start, '.');
case $LPAREN:
case $RPAREN:
case $LBRACE:
case $RBRACE:
case $LBRACKET:
case $RBRACKET:
case $COMMA:
case $COLON:
case $SEMICOLON:
return this.scanCharacter(start, String.fromCharCode(this.peek));
case $SQ:
case $DQ:
return this.scanString();
case $PLUS:
case $MINUS:
case $STAR:
case $SLASH:
case $PERCENT:
case $CARET:
case $QUESTION:
return this.scanOperator(start, String.fromCharCode(this.peek));
case $LT:
case $GT:
case $BANG:
case $EQ:
return this.scanComplexOperator(start, $EQ, String.fromCharCode(this.peek), '=');
case $AMPERSAND:
return this.scanComplexOperator(start, $AMPERSAND, '&', '&');
case $BAR:
return this.scanComplexOperator(start, $BAR, '|', '|');
case $NBSP:
while (isWhitespace(this.peek)) {
this.advance();
}
return this.scanToken();
}
var character = String.fromCharCode(this.peek);
this.error('Unexpected character [' + character + ']');
return null;
};
Scanner.prototype.scanCharacter = function scanCharacter(start, text) {
assert(this.peek === text.charCodeAt(0));
this.advance();
return new Token(start, text);
};
Scanner.prototype.scanOperator = function scanOperator(start, text) {
assert(this.peek === text.charCodeAt(0));
assert(OPERATORS.indexOf(text) !== -1);
this.advance();
return new Token(start, text).withOp(text);
};
Scanner.prototype.scanComplexOperator = function scanComplexOperator(start, code, one, two) {
assert(this.peek === one.charCodeAt(0));
this.advance();
var text = one;
if (this.peek === code) {
this.advance();
text += two;
}
if (this.peek === code) {
this.advance();
text += two;
}
assert(OPERATORS.indexOf(text) != -1);
return new Token(start, text).withOp(text);
};
Scanner.prototype.scanIdentifier = function scanIdentifier() {
assert(isIdentifierStart(this.peek));
var start = this.index;
this.advance();
while (isIdentifierPart(this.peek)) {
this.advance();
}
var text = this.input.substring(start, this.index);
var result = new Token(start, text);
// TODO(kasperl): Deal with null, undefined, true, and false in
// a cleaner and faster way.
Iif (OPERATORS.indexOf(text) !== -1) {
result.withOp(text);
} else {
result.withGetterSetter(text);
}
return result;
};
Scanner.prototype.scanNumber = function scanNumber(start) {
assert(isDigit(this.peek));
var simple = this.index === start;
this.advance(); // Skip initial digit.
while (true) {
Iif (isDigit(this.peek)) {} else Iif (this.peek === $PERIOD) {
simple = false;
} else Iif (isExponentStart(this.peek)) {
this.advance();
if (isExponentSign(this.peek)) {
this.advance();
}
if (!isDigit(this.peek)) {
this.error('Invalid exponent', -1);
}
simple = false;
} else {
break;
}
this.advance();
}
var text = this.input.substring(start, this.index);
var value = simple ? parseInt(text) : parseFloat(text);
return new Token(start, text).withValue(value);
};
Scanner.prototype.scanString = function scanString() {
assert(this.peek === $SQ || this.peek === $DQ);
var start = this.index;
var quote = this.peek;
this.advance(); // Skip initial quote.
var buffer;
var marker = this.index;
while (this.peek !== quote) {
Iif (this.peek === $BACKSLASH) {
if (buffer === null) {
buffer = [];
}
buffer.push(this.input.substring(marker, this.index));
this.advance();
var unescaped;
if (this.peek === $u) {
// TODO(kasperl): Check bounds? Make sure we have test
// coverage for this.
var hex = this.input.substring(this.index + 1, this.index + 5);
if (!/[A-Z0-9]{4}/.test(hex)) {
this.error('Invalid unicode escape [\\u' + hex + ']');
}
unescaped = parseInt(hex, 16);
for (var i = 0; i < 5; ++i) {
this.advance();
}
} else {
unescaped = decodeURIComponent(this.peek);
this.advance();
}
buffer.push(String.fromCharCode(unescaped));
marker = this.index;
} else Iif (this.peek === $EOF) {
this.error('Unterminated quote');
} else {
this.advance();
}
}
var last = this.input.substring(marker, this.index);
this.advance(); // Skip terminating quote.
var text = this.input.substring(start, this.index);
// Compute the unescaped string value.
var unescaped = last;
Iif (buffer != null) {
buffer.push(last);
unescaped = buffer.join('');
}
return new Token(start, text).withValue(unescaped);
};
Scanner.prototype.advance = function advance() {
if (++this.index >= this.length) {
this.peek = $EOF;
} else {
this.peek = this.input.charCodeAt(this.index);
}
};
Scanner.prototype.error = function error(message) {
var offset = arguments[1] === undefined ? 0 : arguments[1];
// TODO(kasperl): Try to get rid of the offset. It is only used to match
// the error expectations in the lexer tests for numbers with exponents.
var position = this.index + offset;
throw new Error('Lexer Error: ' + message + ' at column ' + position + ' in expression [' + this.input + ']');
};
return Scanner;
})();
_export('Scanner', Scanner);
OPERATORS = ['undefined', 'null', 'true', 'false', '+', '-', '*', '/', '%', '^', '=', '==', '===', '!=', '!==', '<', '>', '<=', '>=', '&&', '||', '&', '|', '!', '?'];
$EOF = 0;
$TAB = 9;
$LF = 10;
$VTAB = 11;
$FF = 12;
$CR = 13;
$SPACE = 32;
$BANG = 33;
$DQ = 34;
$$ = 36;
$PERCENT = 37;
$AMPERSAND = 38;
$SQ = 39;
$LPAREN = 40;
$RPAREN = 41;
$STAR = 42;
$PLUS = 43;
$COMMA = 44;
$MINUS = 45;
$PERIOD = 46;
$SLASH = 47;
$COLON = 58;
$SEMICOLON = 59;
$LT = 60;
$EQ = 61;
$GT = 62;
$QUESTION = 63;
$0 = 48;
$9 = 57;
$A = 65;
$E = 69;
$Z = 90;
$LBRACKET = 91;
$BACKSLASH = 92;
$RBRACKET = 93;
$CARET = 94;
$_ = 95;
$a = 97;
$e = 101;
$f = 102;
$n = 110;
$r = 114;
$t = 116;
$u = 117;
$v = 118;
$z = 122;
$LBRACE = 123;
$BAR = 124;
$RBRACE = 125;
$NBSP = 160;
}
};
});
// Do nothing.
//# sourceMappingURL=data:application/json;base64,{"version":3,"sources":["/Users/EisenbergEffect/Documents/GitHub/The Durandal 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       this.peek = $EOF;\n        return null;\n      } else {\n        this.peek = this.input.charCodeAt(this.index);\n      }\n    }\n\n    // Handle identifiers and numbers.\n    if (isIdentifierStart(this.peek)) {\n      return this.scanIdentifier();\n    }\n\n    if (isDigit(this.peek)) {\n      return this.scanNumber(this.index);\n    }\n\n    var start = this.index;\n\n    switch (this.peek) {\n      case $PERIOD:\n        this.advance();\n        return isDigit(this.peek) ? this.scanNumber(start) : new Token(start, '.');\n      case $LPAREN:\n      case $RPAREN:\n      case $LBRACE:\n      case $RBRACE:\n      case $LBRACKET:\n      case $RBRACKET:\n      case $COMMA:\n      case $COLON:\n      case $SEMICOLON:\n        return this.scanCharacter(start, String.fromCharCode(this.peek));\n      case $SQ:\n      case $DQ:\n        return this.scanString();\n      case $PLUS:\n      case $MINUS:\n      case $STAR:\n      case $SLASH:\n      case $PERCENT:\n      case $CARET:\n      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Make sure we have test\n          // coverage for this.\n          var hex = this.input.substring(this.index + 1, this.index + 5);\n\n          if(!/[A-Z0-9]{4}/.test(hex)){\n            this.error(`Invalid unicode escape [\\\\u${hex}]`);\n          }\n\n          unescaped = parseInt(hex, 16);\n          \n          for (var i = 0; i < 5; ++i) {\n            this.advance();\n          }\n        } else {\n          unescaped = decodeURIComponent(this.peek);\n          this.advance();\n        }\n\n        buffer.push(String.fromCharCode(unescaped));\n        marker = this.index;\n      } else if (this.peek === $EOF) {\n        this.error('Unterminated quote');\n      } else {\n        this.advance();\n      }\n    }\n\n    var last = this.input.substring(marker, this.index);\n    this.advance();  // Skip terminating quote.\n    var text = this.input.substring(start, this.index);\n\n    // Compute the unescaped string value.\n    var unescaped = last;\n\n    if (buffer != null) {\n      buffer.push(last);\n      unescaped = buffer.join('');\n    }\n\n    return new Token(start, text).withValue(unescaped);\n  }\n\n  advance() {\n    if (++this.index >= this.length){\n      this.peek = $EOF;\n    }else {\n      this.peek = this.input.charCodeAt(this.index);\n    }\n  }\n\n  error(message, offset=0) {\n    // TODO(kasperl): Try to get rid of the offset. 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