kasperl@google.com
9beb871852
R=bak@google.com BUG= Review URL: https://chromiumcodereview.appspot.com//10919146 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@12017 260f80e4-7a28-3924-810f-c04153c831b5
466 lines
20 KiB
Dart
466 lines
20 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
// TODO(terry): Need to be consistent with tokens either they're ASCII tokens
|
|
// e.g., ASTERISK or they're CSS e.g., PSEUDO, COMBINATOR_*.
|
|
class TokenKind {
|
|
// Common shared tokens used in TokenizerBase.
|
|
static const int UNUSED = 0; // Unused place holder...
|
|
static const int END_OF_FILE = 1;
|
|
static const int LPAREN = 2; // (
|
|
static const int RPAREN = 3; // )
|
|
static const int LBRACK = 4; // [
|
|
static const int RBRACK = 5; // ]
|
|
static const int LBRACE = 6; // {
|
|
static const int RBRACE = 7; // }
|
|
static const int DOT = 8; // .
|
|
static const int SEMICOLON = 9; // ;
|
|
static const int SPACE = 10; // space character
|
|
static const int TAB = 11; // \t
|
|
static const int NEWLINE = 12; // \n
|
|
static const int RETURN = 13; // \r
|
|
static const int COMMA = 14; // ,
|
|
|
|
// Unique tokens.
|
|
static const int LESS_THAN = 15; // <
|
|
static const int GREATER_THAN = 16; // >
|
|
static const int SLASH = 17; // /
|
|
static const int DOLLAR = 18; // $
|
|
static const int HASH = 19; // #
|
|
static const int MINUS = 20; // -
|
|
static const int EQUAL = 21; // =
|
|
static const int DOUBLE_QUOTE = 22; // "
|
|
static const int SINGLE_QUOTE = 23; // '
|
|
static const int ASTERISK = 24; // *
|
|
|
|
// WARNING: END_TOKENS must be 1 greater than the last token above (last
|
|
// character in our list). Also add to kindToString function and the
|
|
// constructor for TokenKind.
|
|
|
|
static const int END_TOKENS = 25; // Marker for last token in list
|
|
|
|
// Synthesized tokens:
|
|
|
|
static const int END_NO_SCOPE_TAG = 50; // />
|
|
static const int START_EXPRESSION = 51; // ${
|
|
static const int START_COMMAND = 52; // ${#
|
|
static const int END_COMMAND = 53; // ${/
|
|
static const int EACH_COMMAND = 53; // ${#each list}
|
|
static const int WITH_COMMAND = 54; // ${#with object}
|
|
static const int IF_COMMAND = 55; // ${#if (expression)}
|
|
static const int ELSE_COMMAND = 56; // ${#else}
|
|
|
|
/** [TokenKind] representing integer tokens. */
|
|
static const int INTEGER = 60; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing hex integer tokens. */
|
|
// static const int HEX_INTEGER = 61; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing double tokens. */
|
|
static const int DOUBLE = 62; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing whitespace tokens. */
|
|
static const int WHITESPACE = 63; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing comment tokens. */
|
|
static const int COMMENT = 64; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing error tokens. */
|
|
static const int ERROR = 65; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing incomplete string tokens. */
|
|
static const int INCOMPLETE_STRING = 66; // TODO(terry): must match base
|
|
|
|
/** [TokenKind] representing incomplete comment tokens. */
|
|
static const int INCOMPLETE_COMMENT = 67; // TODO(terry): must match base
|
|
|
|
// Synthesized Tokens (no character associated with TOKEN).
|
|
// TODO(terry): Possible common names used by both Dart and CSS tokenizers.
|
|
static const int ATTR_VALUE = 500;
|
|
static const int NUMBER = 502;
|
|
static const int HEX_NUMBER = 503;
|
|
static const int HTML_COMMENT = 504; // <!--
|
|
static const int IDENTIFIER = 511;
|
|
static const int STRING = 512;
|
|
static const int STRING_PART = 513;
|
|
|
|
static const int TEMPLATE_KEYWORD = 595; // template keyword
|
|
|
|
// Elements
|
|
/* START_HTML_ELEMENT is first valid element tag name
|
|
* END_HTML_ELEMENT is the last valid element tag name
|
|
*
|
|
*/
|
|
static const int START_HTML_ELEMENT = 600; // First valid tag name.
|
|
static const int A_ELEMENT = 600;
|
|
static const int ABBR_ELEMENT = 601;
|
|
static const int ACRONYM_ELEMENT = 602;
|
|
static const int ADDRESS_ELEMENT = 603;
|
|
static const int APPLET_ELEMENT = 604;
|
|
static const int AREA_ELEMENT = 605;
|
|
static const int B_ELEMENT = 606;
|
|
static const int BASE_ELEMENT = 607;
|
|
static const int BASEFONT_ELEMENT = 608;
|
|
static const int BDO_ELEMENT = 609;
|
|
static const int BIG_ELEMENT = 610;
|
|
static const int BLOCKQUOTE_ELEMENT = 611;
|
|
static const int BODY_ELEMENT = 612;
|
|
static const int BR_ELEMENT = 613;
|
|
static const int BUTTON_ELEMENT = 614;
|
|
static const int CAPTION_ELEMENT = 615;
|
|
static const int CENTER_ELEMENT = 616;
|
|
static const int CITE_ELEMENT = 617;
|
|
static const int CODE_ELEMENT = 618;
|
|
static const int COL_ELEMENT = 619;
|
|
static const int COLGROUP_ELEMENT = 620;
|
|
static const int DD_ELEMENT = 621;
|
|
static const int DEL_ELEMENT = 622;
|
|
static const int DFN_ELEMENT = 623;
|
|
static const int DIR_ELEMENT = 624;
|
|
static const int DIV_ELEMENT = 625;
|
|
static const int DL_ELEMENT = 626;
|
|
static const int DT_ELEMENT = 627;
|
|
static const int EM_ELEMENT = 628;
|
|
static const int FIELDSET_ELEMENT = 629;
|
|
static const int FONT_ELEMENT = 630;
|
|
static const int FORM_ELEMENT = 631;
|
|
static const int FRAME_ELEMENT = 632;
|
|
static const int FRAMESET_ELEMENT = 633;
|
|
static const int H1_ELEMENT = 634;
|
|
static const int H2_ELEMENT = 635;
|
|
static const int H3_ELEMENT = 636;
|
|
static const int H4_ELEMENT = 637;
|
|
static const int H5_ELEMENT = 638;
|
|
static const int H6_ELEMENT = 639;
|
|
static const int HEAD_ELEMENT = 640;
|
|
static const int HR_ELEMENT = 641;
|
|
static const int HTML_ELEMENT = 642;
|
|
static const int I_ELEMENT = 643;
|
|
static const int IFRAME_ELEMENT = 644;
|
|
static const int IMG_ELEMENT = 645;
|
|
static const int INPUT_ELEMENT = 646;
|
|
static const int INS_ELEMENT = 647;
|
|
static const int ISINDEX_ELEMENT = 648;
|
|
static const int KBD_ELEMENT = 649;
|
|
static const int LABEL_ELEMENT = 650;
|
|
static const int LEGEND_ELEMENT = 651;
|
|
static const int LI_ELEMENT = 652;
|
|
static const int LINK_ELEMENT = 653;
|
|
static const int MAP_ELEMENT = 654;
|
|
static const int MENU_ELEMENT = 645;
|
|
static const int META_ELEMENT = 656;
|
|
static const int NOFRAMES_ELEMENT = 657;
|
|
static const int NOSCRIPT_ELEMENT = 658;
|
|
static const int OBJECT_ELEMENT = 659;
|
|
static const int OL_ELEMENT = 660;
|
|
static const int OPTGROUP_ELEMENT = 661;
|
|
static const int OPTION_ELEMENT = 662;
|
|
static const int P_ELEMENT = 663;
|
|
static const int PARAM_ELEMENT = 664;
|
|
static const int PRE_ELEMENT = 665;
|
|
static const int Q_ELEMENT = 666;
|
|
static const int S_ELEMENT = 667;
|
|
static const int SAMP_ELEMENT = 668;
|
|
static const int SCRIPT_ELEMENT = 669;
|
|
static const int SELECT_ELEMENT = 670;
|
|
static const int SMALL_ELEMENT = 671;
|
|
static const int SPAN_ELEMENT = 672;
|
|
static const int STRIKE_ELEMENT = 673;
|
|
static const int STRONG_ELEMENT = 674;
|
|
static const int STYLE_ELEMENT = 675;
|
|
static const int SUB_ELEMENT = 676;
|
|
static const int SUP_ELEMENT = 677;
|
|
static const int TABLE_ELEMENT = 678;
|
|
static const int TBODY_ELEMENT = 679;
|
|
static const int TD_ELEMENT = 680;
|
|
static const int TEXTAREA_ELEMENT = 681;
|
|
static const int TFOOT_ELEMENT = 682;
|
|
static const int TH_ELEMENT = 683;
|
|
static const int THEAD_ELEMENT = 684;
|
|
static const int TITLE_ELEMENT = 685;
|
|
static const int TR_ELEMENT = 686;
|
|
static const int TT_ELEMENT = 687;
|
|
static const int U_ELEMENT = 688;
|
|
static const int UL_ELEMENT = 689;
|
|
static const int VAR_ELEMENT = 690;
|
|
static const int END_HTML_ELEMENT = VAR_ELEMENT; // Last valid tag name.
|
|
|
|
static bool validTagName(int tokId) {
|
|
return tokId >= TokenKind.START_HTML_ELEMENT &&
|
|
tokId <= TokenKind.END_HTML_ELEMENT;
|
|
}
|
|
|
|
static const List<Map<int, String>> _KEYWORDS = const [
|
|
const {'type': TokenKind.TEMPLATE_KEYWORD, 'value' : 'template'},
|
|
];
|
|
|
|
static const List<int> _NON_SCOPED_ELEMENTS = const [
|
|
BR_ELEMENT,
|
|
];
|
|
|
|
// tag values starting with a minus sign implies tag can be unscoped e.g.,
|
|
// <br> is valid without <br></br> or <br/>
|
|
static const List<Map<int, String>> _ELEMENTS = const [
|
|
const {'type': TokenKind.A_ELEMENT, 'value' : 'a'},
|
|
const {'type': TokenKind.ABBR_ELEMENT, 'value' : 'abbr'},
|
|
const {'type': TokenKind.ACRONYM_ELEMENT, 'value' : 'acronym'},
|
|
const {'type': TokenKind.ADDRESS_ELEMENT, 'value' : 'address'},
|
|
const {'type': TokenKind.APPLET_ELEMENT, 'value' : 'applet'},
|
|
const {'type': TokenKind.AREA_ELEMENT, 'value' : 'area'},
|
|
const {'type': TokenKind.B_ELEMENT, 'value' : 'b'},
|
|
const {'type': TokenKind.BASE_ELEMENT, 'value' : 'base'},
|
|
const {'type': TokenKind.BASEFONT_ELEMENT, 'value' : 'basefont'},
|
|
const {'type': TokenKind.BDO_ELEMENT, 'value' : 'bdo'},
|
|
const {'type': TokenKind.BIG_ELEMENT, 'value' : 'big'},
|
|
const {'type': TokenKind.BLOCKQUOTE_ELEMENT, 'value' : 'blockquote'},
|
|
const {'type': TokenKind.BODY_ELEMENT, 'value' : 'body'},
|
|
const {'type': TokenKind.BR_ELEMENT, 'value' : 'br'},
|
|
const {'type': TokenKind.BUTTON_ELEMENT, 'value' : 'button'},
|
|
const {'type': TokenKind.CAPTION_ELEMENT, 'value' : 'caption'},
|
|
const {'type': TokenKind.CENTER_ELEMENT, 'value' : 'center'},
|
|
const {'type': TokenKind.CITE_ELEMENT, 'value' : 'cite'},
|
|
const {'type': TokenKind.CODE_ELEMENT, 'value' : 'code'},
|
|
const {'type': TokenKind.COL_ELEMENT, 'value' : 'col'},
|
|
const {'type': TokenKind.COLGROUP_ELEMENT, 'value' : 'colgroup'},
|
|
const {'type': TokenKind.DD_ELEMENT, 'value' : 'dd'},
|
|
const {'type': TokenKind.DEL_ELEMENT, 'value' : 'del'},
|
|
const {'type': TokenKind.DFN_ELEMENT, 'value' : 'dfn'},
|
|
const {'type': TokenKind.DIR_ELEMENT, 'value' : 'dir'},
|
|
const {'type': TokenKind.DIV_ELEMENT, 'value' : 'div'},
|
|
const {'type': TokenKind.DL_ELEMENT, 'value' : 'dl'},
|
|
const {'type': TokenKind.DT_ELEMENT, 'value' : 'dt'},
|
|
const {'type': TokenKind.EM_ELEMENT, 'value' : 'em'},
|
|
const {'type': TokenKind.FIELDSET_ELEMENT, 'value' : 'fieldset'},
|
|
const {'type': TokenKind.FONT_ELEMENT, 'value' : 'font'},
|
|
const {'type': TokenKind.FORM_ELEMENT, 'value' : 'form'},
|
|
const {'type': TokenKind.FRAME_ELEMENT, 'value' : 'frame'},
|
|
const {'type': TokenKind.FRAMESET_ELEMENT, 'value' : 'frameset'},
|
|
const {'type': TokenKind.H1_ELEMENT, 'value' : 'h1'},
|
|
const {'type': TokenKind.H2_ELEMENT, 'value' : 'h2'},
|
|
const {'type': TokenKind.H3_ELEMENT, 'value' : 'h3'},
|
|
const {'type': TokenKind.H4_ELEMENT, 'value' : 'h4'},
|
|
const {'type': TokenKind.H5_ELEMENT, 'value' : 'h5'},
|
|
const {'type': TokenKind.H6_ELEMENT, 'value' : 'h6'},
|
|
const {'type': TokenKind.HEAD_ELEMENT, 'value' : 'head'},
|
|
const {'type': TokenKind.HR_ELEMENT, 'value' : 'hr'},
|
|
const {'type': TokenKind.HTML_ELEMENT, 'value' : 'html'},
|
|
const {'type': TokenKind.I_ELEMENT, 'value' : 'i'},
|
|
const {'type': TokenKind.IFRAME_ELEMENT, 'value' : 'iframe'},
|
|
const {'type': TokenKind.IMG_ELEMENT, 'value' : 'img'},
|
|
const {'type': TokenKind.INPUT_ELEMENT, 'value' : 'input'},
|
|
const {'type': TokenKind.INS_ELEMENT, 'value' : 'ins'},
|
|
const {'type': TokenKind.ISINDEX_ELEMENT, 'value' : 'isindex'},
|
|
const {'type': TokenKind.KBD_ELEMENT, 'value' : 'kbd'},
|
|
const {'type': TokenKind.LABEL_ELEMENT, 'value' : 'label'},
|
|
const {'type': TokenKind.LEGEND_ELEMENT, 'value' : 'legend'},
|
|
const {'type': TokenKind.LI_ELEMENT, 'value' : 'li'},
|
|
const {'type': TokenKind.LINK_ELEMENT, 'value' : 'link'},
|
|
const {'type': TokenKind.MAP_ELEMENT, 'value' : 'map'},
|
|
const {'type': TokenKind.MENU_ELEMENT, 'value' : 'menu'},
|
|
const {'type': TokenKind.META_ELEMENT, 'value' : 'meta'},
|
|
const {'type': TokenKind.NOFRAMES_ELEMENT, 'value' : 'noframes'},
|
|
const {'type': TokenKind.NOSCRIPT_ELEMENT, 'value' : 'noscript'},
|
|
const {'type': TokenKind.OBJECT_ELEMENT, 'value' : 'object'},
|
|
const {'type': TokenKind.OL_ELEMENT, 'value' : 'ol'},
|
|
const {'type': TokenKind.OPTGROUP_ELEMENT, 'value' : 'optgroup'},
|
|
const {'type': TokenKind.OPTION_ELEMENT, 'value' : 'option'},
|
|
const {'type': TokenKind.P_ELEMENT, 'value' : 'p'},
|
|
const {'type': TokenKind.PARAM_ELEMENT, 'value' : 'param'},
|
|
const {'type': TokenKind.PRE_ELEMENT, 'value' : 'pre'},
|
|
const {'type': TokenKind.Q_ELEMENT, 'value' : 'q'},
|
|
const {'type': TokenKind.S_ELEMENT, 'value' : 's'},
|
|
const {'type': TokenKind.SAMP_ELEMENT, 'value' : 'samp'},
|
|
const {'type': TokenKind.SCRIPT_ELEMENT, 'value' : 'script'},
|
|
const {'type': TokenKind.SELECT_ELEMENT, 'value' : 'select'},
|
|
const {'type': TokenKind.SMALL_ELEMENT, 'value' : 'small'},
|
|
const {'type': TokenKind.SPAN_ELEMENT, 'value' : 'span'},
|
|
const {'type': TokenKind.STRIKE_ELEMENT, 'value' : 'strike'},
|
|
const {'type': TokenKind.STRONG_ELEMENT, 'value' : 'strong'},
|
|
const {'type': TokenKind.STYLE_ELEMENT, 'value' : 'style'},
|
|
const {'type': TokenKind.SUB_ELEMENT, 'value' : 'sub'},
|
|
const {'type': TokenKind.SUP_ELEMENT, 'value' : 'sup'},
|
|
const {'type': TokenKind.TABLE_ELEMENT, 'value' : 'table'},
|
|
const {'type': TokenKind.TBODY_ELEMENT, 'value' : 'tbody'},
|
|
const {'type': TokenKind.TD_ELEMENT, 'value' : 'td'},
|
|
const {'type': TokenKind.TEXTAREA_ELEMENT, 'value' : 'textarea'},
|
|
const {'type': TokenKind.TFOOT_ELEMENT, 'value' : 'tfoot'},
|
|
const {'type': TokenKind.TH_ELEMENT, 'value' : 'th'},
|
|
const {'type': TokenKind.THEAD_ELEMENT, 'value' : 'thead'},
|
|
const {'type': TokenKind.TITLE_ELEMENT, 'value' : 'title'},
|
|
const {'type': TokenKind.TR_ELEMENT, 'value' : 'tr'},
|
|
const {'type': TokenKind.TT_ELEMENT, 'value' : 'tt'},
|
|
const {'type': TokenKind.U_ELEMENT, 'value' : 'u'},
|
|
const {'type': TokenKind.UL_ELEMENT, 'value' : 'ul'},
|
|
const {'type': TokenKind.VAR_ELEMENT, 'value' : 'var'},
|
|
];
|
|
|
|
// Some more constants:
|
|
static const int ASCII_UPPER_A = 65; // ASCII value for uppercase A
|
|
static const int ASCII_UPPER_Z = 90; // ASCII value for uppercase Z
|
|
|
|
List<int> tokens;
|
|
|
|
/*
|
|
* Return the token that matches the unit ident found.
|
|
*/
|
|
static int matchList(var identList, String tokenField, String text,
|
|
int offset, int length) {
|
|
for (final entry in identList) {
|
|
String ident = entry['value'];
|
|
if (length == ident.length) {
|
|
int idx = offset;
|
|
bool match = true;
|
|
for (int identIdx = 0; identIdx < ident.length; identIdx++) {
|
|
int identChar = ident.charCodeAt(identIdx);
|
|
int char = text.charCodeAt(idx++);
|
|
// Compare lowercase to lowercase then check if char is uppercase.
|
|
match = match && (char == identChar ||
|
|
((char >= ASCII_UPPER_A && char <= ASCII_UPPER_Z) &&
|
|
(char + 32) == identChar));
|
|
if (!match) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (match) {
|
|
// Completely matched; return the token for this unit.
|
|
return entry[tokenField];
|
|
}
|
|
}
|
|
}
|
|
|
|
return -1; // Not a unit token.
|
|
}
|
|
|
|
/*
|
|
* Return the token that matches the element ident found.
|
|
*/
|
|
static int matchElements(String text, int offset, int length) {
|
|
return matchList(_ELEMENTS, 'type', text, offset, length);
|
|
}
|
|
|
|
static String tagNameFromTokenId(int tagTokenId) {
|
|
if (TokenKind.validTagName(tagTokenId)) {
|
|
for (final tag in TokenKind._ELEMENTS) {
|
|
if (tag['type'] == tagTokenId) {
|
|
return tag['value'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool unscopedTag(int tagTokenId) {
|
|
for (final tagId in TokenKind._NON_SCOPED_ELEMENTS) {
|
|
if (tagId == tagTokenId) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static int matchKeywords(String text, int offset, int length) {
|
|
return matchList(_KEYWORDS, 'type', text, offset, length);
|
|
}
|
|
|
|
static String kindToString(int kind) {
|
|
switch(kind) {
|
|
case TokenKind.UNUSED: return "ERROR";
|
|
case TokenKind.END_OF_FILE: return "end of file";
|
|
case TokenKind.LPAREN: return "(";
|
|
case TokenKind.RPAREN: return ")";
|
|
case TokenKind.LBRACK: return "[";
|
|
case TokenKind.RBRACK: return "]";
|
|
case TokenKind.LBRACE: return "{";
|
|
case TokenKind.RBRACE: return "}";
|
|
case TokenKind.DOT: return ".";
|
|
case TokenKind.SEMICOLON: return ";";
|
|
case TokenKind.SPACE: return " ";
|
|
case TokenKind.TAB: return "\t";
|
|
case TokenKind.NEWLINE: return "\n";
|
|
case TokenKind.RETURN: return "\r";
|
|
case TokenKind.COMMA: return ",";
|
|
case TokenKind.LESS_THAN: return "<";
|
|
case TokenKind.GREATER_THAN: return ">";
|
|
case TokenKind.SLASH: return "/";
|
|
case TokenKind.DOLLAR: return "\$";
|
|
case TokenKind.HASH: return "#";
|
|
case TokenKind.MINUS: return '-';
|
|
case TokenKind.EQUAL: return '=';
|
|
case TokenKind.DOUBLE_QUOTE: return '"';
|
|
case TokenKind.SINGLE_QUOTE: return "'";
|
|
case TokenKind.ASTERISK: return "*";
|
|
case TokenKind.END_NO_SCOPE_TAG: return '/>';
|
|
case TokenKind.START_EXPRESSION: return '\${';
|
|
case TokenKind.START_COMMAND: return '\${#';
|
|
case TokenKind.END_COMMAND: return '\${/';
|
|
case TokenKind.EACH_COMMAND: return '\${#each list}';
|
|
case TokenKind.WITH_COMMAND: return '\${with object}';
|
|
case TokenKind.IF_COMMAND: return '\${#if (expression)}';
|
|
case TokenKind.ELSE_COMMAND: return '\${#end}';
|
|
case TokenKind.INTEGER: return 'integer';
|
|
case TokenKind.DOUBLE: return 'double';
|
|
case TokenKind.WHITESPACE: return 'whitespace';
|
|
case TokenKind.COMMENT: return 'comment';
|
|
case TokenKind.ERROR: return 'error';
|
|
case TokenKind.INCOMPLETE_STRING : return 'incomplete string';
|
|
case TokenKind.INCOMPLETE_COMMENT: return 'incomplete comment';
|
|
case TokenKind.ATTR_VALUE: return 'attribute value';
|
|
case TokenKind.NUMBER: return 'number';
|
|
case TokenKind.HEX_NUMBER: return 'hex number';
|
|
case TokenKind.HTML_COMMENT: return 'HTML comment <!-- -->';
|
|
case TokenKind.IDENTIFIER: return 'identifier';
|
|
case TokenKind.STRING: return 'string';
|
|
case TokenKind.STRING_PART: return 'string part';
|
|
case TokenKind.TEMPLATE_KEYWORD: return 'template';
|
|
default:
|
|
throw "Unknown TOKEN";
|
|
}
|
|
}
|
|
|
|
TokenKind() {
|
|
tokens = [];
|
|
|
|
// All tokens must be in TokenKind order.
|
|
tokens.add(-1); // TokenKind.UNUSED
|
|
tokens.add(0); // TokenKind.END_OF_FILE match base
|
|
tokens.add(TokenKind.kindToString(TokenKind.LPAREN).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.RPAREN).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.LBRACK).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.RBRACK).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.LBRACE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.RBRACE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.DOT).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.SEMICOLON).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.SPACE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.TAB).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.NEWLINE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.RETURN).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.COMMA).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.LESS_THAN).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.GREATER_THAN).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.SLASH).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.DOLLAR).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.HASH).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.MINUS).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.EQUAL).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.DOUBLE_QUOTE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.SINGLE_QUOTE).charCodeAt(0));
|
|
tokens.add(TokenKind.kindToString(TokenKind.ASTERISK).charCodeAt(0));
|
|
|
|
assert(tokens.length == TokenKind.END_TOKENS);
|
|
}
|
|
|
|
static bool isIdentifier(int kind) {
|
|
return kind == IDENTIFIER;
|
|
}
|
|
}
|
|
|
|
class NoElementMatchException implements Exception {
|
|
String _tagName;
|
|
NoElementMatchException(this._tagName);
|
|
|
|
String get name => _tagName;
|
|
}
|