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regex: warn about more Redundant character escapes inside classes

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This commit is contained in:
Bas Leijdekkers
2016-05-23 16:34:35 +02:00
parent 29d61192d6
commit 32f7e8cc97
3 changed files with 206 additions and 193 deletions
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RegExpSupport/gen/org/intellij/lang/regexp/_RegExLexer.java
+197 -188
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@@ -208,17 +208,17 @@ class _RegExLexer implements FlexLexer {
"\1\26\1\27\1\30\1\31\1\32\1\33\1\34\1\35"+
"\1\10\1\36\1\2\1\37\1\40\1\37\1\41\1\42"+
"\1\43\1\44\1\45\1\46\1\1\1\47\1\50\2\51"+
"\1\52\1\53\1\0\1\54\1\55\1\56\1\57\1\10"+
"\1\60\1\61\1\62\2\63\1\64\1\65\1\66\1\67"+
"\1\55\1\70\2\10\1\71\1\72\1\73\1\74\1\75"+
"\1\76\1\77\1\100\1\0\1\101\1\102\1\103\1\104"+
"\1\105\1\0\1\106\1\107\1\110\2\66\1\67\1\55"+
"\1\111\1\112\1\113\1\114\1\115\1\116\1\117\1\120"+
"\1\0\1\107\1\121\2\66\1\67\1\122\1\123\1\107"+
"\1\66\1\67\1\66\1\124\4\66";
"\1\52\1\53\1\0\1\54\1\55\1\56\1\57\1\60"+
"\1\10\1\61\1\62\1\63\2\64\1\65\1\66\1\67"+
"\1\70\1\55\1\71\1\72\2\10\1\73\1\74\1\75"+
"\1\76\1\77\1\100\1\101\1\102\1\0\1\103\1\104"+
"\1\105\1\106\1\107\1\0\1\110\1\111\1\112\2\67"+
"\1\70\1\55\1\113\1\114\1\115\1\116\1\117\1\120"+
"\1\121\1\122\1\0\1\111\1\123\2\67\1\70\1\124"+
"\1\125\1\111\1\67\1\70\1\67\1\126\4\67";
private static int [] zzUnpackAction() {
int [] result = new int[128];
int [] result = new int[130];
int offset = 0;
offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
return result;
@@ -251,17 +251,18 @@ class _RegExLexer implements FlexLexer {
"\0\u032c\0\u04c2\0\u032c\0\u04fc\0\u032c\0\u0536\0\u032c\0\u032c"+
"\0\u03a0\0\u032c\0\u032c\0\u032c\0\u0570\0\u05aa\0\u032c\0\u032c"+
"\0\u032c\0\u032c\0\u032c\0\u05e4\0\u061e\0\u032c\0\u0658\0\u032c"+
"\0\u0692\0\u06cc\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u0706"+
"\0\u032c\0\u032c\0\u032c\0\u0740\0\u077a\0\u07b4\0\u032c\0\u07ee"+
"\0\u0828\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c"+
"\0\u032c\0\u0862\0\u089c\0\u032c\0\u032c\0\u032c\0\u032c\0\u08d6"+
"\0\u032c\0\u0910\0\u032c\0\u094a\0\u0984\0\u09be\0\u09f8\0\u032c"+
"\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u0a32"+
"\0\u0a6c\0\u032c\0\u0aa6\0\u032c\0\u0ae0\0\u0692\0\u032c\0\u032c"+
"\0\u0b1a\0\u0b54\0\u0b8e\0\u032c\0\u0bc8\0\u0c02\0\u0c3c\0\u0c76";
"\0\u0692\0\u06cc\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c"+
"\0\u0706\0\u032c\0\u032c\0\u032c\0\u0740\0\u077a\0\u07b4\0\u032c"+
"\0\u032c\0\u07ee\0\u0828\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c"+
"\0\u032c\0\u032c\0\u032c\0\u0862\0\u089c\0\u032c\0\u032c\0\u032c"+
"\0\u032c\0\u08d6\0\u032c\0\u0910\0\u032c\0\u094a\0\u0984\0\u09be"+
"\0\u09f8\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c\0\u032c"+
"\0\u032c\0\u0a32\0\u0a6c\0\u032c\0\u0aa6\0\u032c\0\u0ae0\0\u0692"+
"\0\u032c\0\u032c\0\u0b1a\0\u0b54\0\u0b8e\0\u032c\0\u0bc8\0\u0c02"+
"\0\u0c3c\0\u0c76";
private static int [] zzUnpackRowMap() {
int [] result = new int[128];
int [] result = new int[130];
int offset = 0;
offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
return result;
@@ -308,53 +309,53 @@ class _RegExLexer implements FlexLexer {
"\1\44\10\73\22\44\2\73\2\44\2\73\1\44\1\73"+
"\1\44\4\73\1\74\6\73\112\0\1\75\62\0\1\76"+
"\4\0\1\77\53\0\1\100\1\101\1\102\4\103\1\100"+
"\1\103\1\100\1\103\1\104\2\100\6\103\2\105\3\106"+
"\3\107\1\110\2\111\2\112\1\104\1\113\1\104\1\114"+
"\1\115\1\116\1\103\1\117\1\120\2\100\1\121\1\122"+
"\1\104\1\100\1\122\1\100\1\122\2\100\1\122\4\100"+
"\43\0\1\123\27\0\2\42\12\0\1\42\30\0\1\42"+
"\24\0\2\44\10\0\3\44\6\0\23\44\1\0\2\44"+
"\2\0\1\44\1\0\1\44\24\0\1\124\4\0\1\77"+
"\44\0\1\125\6\0\1\100\1\101\1\102\4\103\1\100"+
"\1\103\1\126\1\103\1\104\2\100\6\103\2\105\3\106"+
"\3\107\1\110\2\111\2\112\1\104\1\113\1\104\1\114"+
"\1\115\1\116\1\103\1\117\1\120\2\100\1\121\1\122"+
"\1\104\1\100\1\122\1\100\1\122\2\100\1\122\4\100"+
"\64\0\1\127\20\0\1\65\10\0\22\65\2\0\2\65"+
"\2\0\1\65\1\0\1\65\26\0\1\66\10\0\22\66"+
"\2\0\2\66\2\0\1\66\1\0\1\66\24\0\1\130"+
"\64\0\1\131\33\0\1\132\11\0\1\133\1\134\7\0"+
"\1\135\2\0\1\135\1\136\1\137\1\140\11\0\1\141"+
"\61\0\2\101\43\0\1\101\25\0\1\142\43\0\1\142"+
"\23\0\72\143\1\0\2\144\3\0\1\145\16\0\2\144"+
"\4\0\3\144\3\0\1\144\1\0\1\144\2\0\1\144"+
"\24\0\2\146\22\0\2\146\4\0\3\146\3\0\1\146"+
"\1\0\1\146\2\0\1\146\24\0\1\101\1\147\43\0"+
"\1\147\75\0\1\150\1\151\70\0\1\152\1\153\70\0"+
"\1\154\14\0\1\155\71\0\1\156\1\157\1\0\5\160"+
"\1\0\64\160\2\0\1\161\43\0\1\161\24\0\2\162"+
"\22\0\2\162\4\0\3\162\3\0\1\162\1\0\1\162"+
"\2\0\1\162\24\0\2\163\4\0\1\164\15\0\2\163"+
"\4\0\3\163\3\0\1\163\1\0\1\163\2\0\1\163"+
"\24\0\2\165\22\0\2\165\4\0\3\165\3\0\1\165"+
"\1\0\1\165\2\0\1\165\24\0\1\101\1\166\43\0"+
"\1\166\23\0\5\160\1\167\64\160\2\0\1\170\43\0"+
"\1\170\24\0\2\171\4\0\1\162\15\0\2\171\4\0"+
"\3\171\3\0\1\171\1\0\1\171\2\0\1\171\24\0"+
"\2\172\22\0\2\172\4\0\3\172\3\0\1\172\1\0"+
"\1\172\2\0\1\172\24\0\2\173\4\0\1\162\15\0"+
"\1\104\1\100\1\104\1\105\2\100\1\104\5\103\2\106"+
"\3\107\3\110\1\111\2\112\2\113\1\105\1\114\1\105"+
"\1\115\1\116\1\117\1\120\1\121\1\122\2\100\1\123"+
"\1\124\1\105\1\100\1\124\1\100\1\124\2\100\1\124"+
"\4\100\43\0\1\125\27\0\2\42\12\0\1\42\30\0"+
"\1\42\24\0\2\44\10\0\3\44\6\0\23\44\1\0"+
"\2\44\2\0\1\44\1\0\1\44\24\0\1\126\4\0"+
"\1\77\44\0\1\127\6\0\1\100\1\101\1\102\4\103"+
"\1\100\1\104\1\130\1\104\1\105\2\100\1\104\5\103"+
"\2\106\3\107\3\110\1\111\2\112\2\113\1\105\1\114"+
"\1\105\1\115\1\116\1\117\1\120\1\121\1\122\2\100"+
"\1\123\1\124\1\105\1\100\1\124\1\100\1\124\2\100"+
"\1\124\4\100\64\0\1\131\20\0\1\65\10\0\22\65"+
"\2\0\2\65\2\0\1\65\1\0\1\65\26\0\1\66"+
"\10\0\22\66\2\0\2\66\2\0\1\66\1\0\1\66"+
"\24\0\1\132\64\0\1\133\33\0\1\134\11\0\1\135"+
"\1\136\7\0\1\137\2\0\1\137\1\140\1\141\1\142"+
"\11\0\1\143\61\0\2\101\43\0\1\101\25\0\1\144"+
"\43\0\1\144\23\0\72\145\1\0\2\146\3\0\1\147"+
"\16\0\2\146\4\0\3\146\3\0\1\146\1\0\1\146"+
"\2\0\1\146\24\0\2\150\22\0\2\150\4\0\3\150"+
"\3\0\1\150\1\0\1\150\2\0\1\150\24\0\1\101"+
"\1\151\43\0\1\151\75\0\1\152\1\153\70\0\1\154"+
"\1\155\70\0\1\156\14\0\1\157\71\0\1\160\1\161"+
"\1\0\5\162\1\0\64\162\2\0\1\163\43\0\1\163"+
"\24\0\2\164\22\0\2\164\4\0\3\164\3\0\1\164"+
"\1\0\1\164\2\0\1\164\24\0\2\165\4\0\1\166"+
"\15\0\2\165\4\0\3\165\3\0\1\165\1\0\1\165"+
"\2\0\1\165\24\0\2\167\22\0\2\167\4\0\3\167"+
"\3\0\1\167\1\0\1\167\2\0\1\167\24\0\1\101"+
"\1\170\43\0\1\170\23\0\5\162\1\171\64\162\2\0"+
"\1\172\43\0\1\172\24\0\2\173\4\0\1\164\15\0"+
"\2\173\4\0\3\173\3\0\1\173\1\0\1\173\2\0"+
"\1\173\24\0\2\174\22\0\2\174\4\0\3\174\3\0"+
"\1\174\1\0\1\174\2\0\1\174\24\0\2\175\4\0"+
"\1\162\15\0\2\175\4\0\3\175\3\0\1\175\1\0"+
"\1\175\2\0\1\175\24\0\2\176\4\0\1\162\15\0"+
"\2\176\4\0\3\176\3\0\1\176\1\0\1\176\2\0"+
"\1\176\24\0\2\177\4\0\1\162\15\0\2\177\4\0"+
"\3\177\3\0\1\177\1\0\1\177\2\0\1\177\24\0"+
"\2\200\4\0\1\162\15\0\2\200\4\0\3\200\3\0"+
"\1\200\1\0\1\200\2\0\1\200\24\0\2\200\4\0"+
"\1\164\15\0\2\175\4\0\3\175\3\0\1\175\1\0"+
"\1\175\2\0\1\175\24\0\2\176\22\0\2\176\4\0"+
"\3\176\3\0\1\176\1\0\1\176\2\0\1\176\24\0"+
"\2\177\4\0\1\164\15\0\2\177\4\0\3\177\3\0"+
"\1\177\1\0\1\177\2\0\1\177\24\0\2\200\4\0"+
"\1\164\15\0\2\200\4\0\3\200\3\0\1\200\1\0"+
"\1\200\2\0\1\200\23\0";
"\1\200\2\0\1\200\24\0\2\201\4\0\1\164\15\0"+
"\2\201\4\0\3\201\3\0\1\201\1\0\1\201\2\0"+
"\1\201\24\0\2\202\4\0\1\164\15\0\2\202\4\0"+
"\3\202\3\0\1\202\1\0\1\202\2\0\1\202\24\0"+
"\2\202\4\0\1\166\15\0\2\202\4\0\3\202\3\0"+
"\1\202\1\0\1\202\2\0\1\202\23\0";
private static int [] zzUnpackTrans() {
int [] result = new int[3248];
@@ -398,13 +399,13 @@ class _RegExLexer implements FlexLexer {
"\10\0\1\1\5\0\2\11\1\1\2\11\2\1\12\11"+
"\1\1\1\11\1\1\1\11\1\1\5\11\1\1\1\11"+
"\1\1\1\11\1\1\2\11\1\1\3\11\2\1\5\11"+
"\2\1\1\11\1\0\1\11\2\1\5\11\1\1\3\11"+
"\3\1\1\11\2\1\10\11\1\0\1\1\4\11\1\0"+
"\2\1\1\11\1\0\1\11\2\1\6\11\1\1\3\11"+
"\3\1\2\11\2\1\10\11\1\0\1\1\4\11\1\0"+
"\1\11\1\1\1\11\4\1\10\11\1\0\1\1\1\11"+
"\1\1\1\11\2\1\2\11\3\1\1\11\4\1";
private static int [] zzUnpackAttribute() {
int [] result = new int[128];
int [] result = new int[130];
int offset = 0;
offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
return result;
@@ -761,76 +762,76 @@ class _RegExLexer implements FlexLexer {
case 1:
{ yypopstate(); return RegExpTT.COMMENT;
}
case 85: break;
case 87: break;
case 2:
{ return RegExpTT.CHARACTER;
}
case 86: break;
case 88: break;
case 3:
{ return RegExpTT.DOT;
}
case 87: break;
case 89: break;
case 4:
{ capturingGroupCount++; return RegExpTT.GROUP_BEGIN;
}
case 88: break;
case 90: break;
case 5:
{ return RegExpTT.GROUP_END;
}
case 89: break;
case 91: break;
case 6:
{ if (yystate() != CLASS2) yypushstate(EMBRACED); return RegExpTT.LBRACE;
}
case 90: break;
case 92: break;
case 7:
{ yypushstate(CLASS2);
return RegExpTT.CLASS_BEGIN;
}
case 91: break;
case 93: break;
case 8:
{ return StringEscapesTokenTypes.INVALID_CHARACTER_ESCAPE_TOKEN;
}
case 92: break;
case 94: break;
case 9:
{ return RegExpTT.CARET;
}
case 93: break;
case 95: break;
case 10:
{ return RegExpTT.DOLLAR;
}
case 94: break;
case 96: break;
case 11:
{ return RegExpTT.QUEST;
}
case 95: break;
case 97: break;
case 12:
{ return RegExpTT.STAR;
}
case 96: break;
case 98: break;
case 13:
{ return RegExpTT.PLUS;
}
case 97: break;
case 99: break;
case 14:
{ return RegExpTT.UNION;
}
case 98: break;
case 100: break;
case 15:
{ return RegExpTT.MINUS;
}
case 99: break;
case 101: break;
case 16:
{ return commentMode ? com.intellij.psi.TokenType.WHITE_SPACE : RegExpTT.CHARACTER;
}
case 100: break;
case 102: break;
case 17:
{ return commentMode ? com.intellij.psi.TokenType.WHITE_SPACE : RegExpTT.CTRL_CHARACTER;
}
case 101: break;
case 103: break;
case 18:
{ if (commentMode) { yypushstate(COMMENT); return RegExpTT.COMMENT; } else return RegExpTT.CHARACTER;
}
case 102: break;
case 104: break;
case 19:
{ if (allowDanglingMetacharacters) {
yypopstate(); yypushback(1);
@@ -838,19 +839,19 @@ class _RegExLexer implements FlexLexer {
return RegExpTT.BAD_CHARACTER;
}
}
case 103: break;
case 105: break;
case 20:
{ return RegExpTT.NUMBER;
}
case 104: break;
case 106: break;
case 21:
{ yypopstate(); return RegExpTT.RBRACE;
}
case 105: break;
case 107: break;
case 22:
{ return RegExpTT.NAME;
}
case 106: break;
case 108: break;
case 23:
{ if (allowCaretNegatedProperties) {
return RegExpTT.CARET;
@@ -861,23 +862,23 @@ class _RegExLexer implements FlexLexer {
return RegExpTT.BAD_CHARACTER;
}
}
case 107: break;
case 109: break;
case 24:
{ return RegExpTT.COMMA;
}
case 108: break;
case 110: break;
case 25:
{ assert false : yytext();
}
case 109: break;
case 111: break;
case 26:
{ yybegin(CLASS2); return RegExpTT.CHARACTER;
}
case 110: break;
case 112: break;
case 27:
{ yybegin(CLASS1); return RegExpTT.CARET;
}
case 111: break;
case 113: break;
case 28:
{ if (allowNestedCharacterClasses) {
yypushstate(CLASS2);
@@ -885,63 +886,63 @@ class _RegExLexer implements FlexLexer {
}
return RegExpTT.CHARACTER;
}
case 112: break;
case 114: break;
case 29:
{ yypopstate(); return RegExpTT.CLASS_END;
}
case 113: break;
case 115: break;
case 30:
{ return commentMode ? com.intellij.psi.TokenType.WHITE_SPACE : RegExpTT.ESC_CHARACTER;
}
case 114: break;
case 116: break;
case 31:
{ yypopstate(); yypushback(1);
}
case 115: break;
case 117: break;
case 32:
{ yypopstate(); yypushstate(EMBRACED); return RegExpTT.LBRACE;
}
case 116: break;
case 118: break;
case 33:
{ yypopstate(); if (allowCategoryShorthand) return RegExpTT.CATEGORY_SHORT_HAND; else yypushback(1);
}
case 117: break;
case 119: break;
case 34:
{ yybegin(YYINITIAL); return RegExpTT.BAD_CHARACTER;
}
case 118: break;
case 120: break;
case 35:
{ yybegin(YYINITIAL); return RegExpTT.GROUP_END;
}
case 119: break;
case 121: break;
case 36:
{ handleOptions(); return RegExpTT.OPTIONS_ON;
}
case 120: break;
case 122: break;
case 37:
{ handleOptions(); return RegExpTT.OPTIONS_OFF;
}
case 121: break;
case 123: break;
case 38:
{ yybegin(YYINITIAL); return RegExpTT.COLON;
}
case 122: break;
case 124: break;
case 39:
{ yybegin(YYINITIAL); return RegExpTT.GT;
}
case 123: break;
case 125: break;
case 40:
{ yybegin(YYINITIAL); return RegExpTT.QUOTE;
}
case 124: break;
case 126: break;
case 41:
{ return RegExpTT.BAD_CHARACTER;
}
case 125: break;
case 127: break;
case 42:
{ yybegin(OPTIONS); return RegExpTT.SET_OPTIONS;
}
case 126: break;
case 128: break;
case 43:
// lookahead expression with fixed base length
zzMarkedPos = Character.offsetByCodePoints
@@ -949,11 +950,11 @@ class _RegExLexer implements FlexLexer {
{ if (allowEmptyCharacterClass) yypushstate(CLASS2); else yypushstate(CLASS1);
return RegExpTT.CLASS_BEGIN;
}
case 127: break;
case 129: break;
case 44:
{ return RegExpTT.REDUNDANT_ESCAPE;
}
case 128: break;
case 130: break;
case 45:
{ if (yystate() == CLASS2) return RegExpTT.ESC_CHARACTER;
while (yylength() > 2 && Integer.parseInt(yytext().toString().substring(1)) > capturingGroupCount) {
@@ -961,60 +962,68 @@ class _RegExLexer implements FlexLexer {
}
return RegExpTT.BACKREF;
}
case 129: break;
case 131: break;
case 46:
{ return (allowOctalNoLeadingZero ? RegExpTT.OCT_CHAR : RegExpTT.BAD_OCT_VALUE);
}
case 130: break;
case 47:
{ return RegExpTT.ESC_CHARACTER;
}
case 131: break;
case 48:
{ return RegExpTT.ESC_CTRL_CHARACTER;
}
case 132: break;
case 49:
{ return yystate() != CLASS2 ? RegExpTT.BOUNDARY : RegExpTT.ESC_CHARACTER;
case 47:
{ return (yystate() == CLASS2) ? RegExpTT.REDUNDANT_ESCAPE : RegExpTT.ESC_CHARACTER;
}
case 133: break;
case 50:
{ return RegExpTT.CHAR_CLASS;
case 48:
{ return RegExpTT.ESC_CHARACTER;
}
case 134: break;
case 51:
{ if (xmlSchemaMode) return RegExpTT.CHAR_CLASS; else return StringEscapesTokenTypes.INVALID_CHARACTER_ESCAPE_TOKEN;
case 49:
{ return RegExpTT.ESC_CTRL_CHARACTER;
}
case 135: break;
case 52:
{ yypushstate(PROP); return RegExpTT.PROPERTY;
case 50:
{ return yystate() != CLASS2 ? RegExpTT.BOUNDARY : RegExpTT.ESC_CHARACTER;
}
case 136: break;
case 53:
{ yypushstate(QUOTED); return RegExpTT.QUOTE_BEGIN;
case 51:
{ return RegExpTT.CHAR_CLASS;
}
case 137: break;
case 54:
{ return RegExpTT.BAD_HEX_VALUE;
case 52:
{ if (xmlSchemaMode) return RegExpTT.CHAR_CLASS; else return StringEscapesTokenTypes.INVALID_CHARACTER_ESCAPE_TOKEN;
}
case 138: break;
case 55:
{ return StringEscapesTokenTypes.INVALID_UNICODE_ESCAPE_TOKEN;
case 53:
{ yypushstate(PROP); return RegExpTT.PROPERTY;
}
case 139: break;
case 56:
{ return (allowHexDigitClass || allowHorizontalWhitespaceClass ? RegExpTT.CHAR_CLASS : StringEscapesTokenTypes.INVALID_CHARACTER_ESCAPE_TOKEN);
case 54:
{ yypushstate(QUOTED); return RegExpTT.QUOTE_BEGIN;
}
case 140: break;
case 57:
{ return commentMode ? RegExpTT.CHARACTER : RegExpTT.REDUNDANT_ESCAPE;
case 55:
{ return RegExpTT.BAD_HEX_VALUE;
}
case 141: break;
case 58:
{ yypopstate(); return RegExpTT.QUOTE_END;
case 56:
{ return StringEscapesTokenTypes.INVALID_UNICODE_ESCAPE_TOKEN;
}
case 142: break;
case 57:
{ return (yystate() == CLASS2) ? RegExpTT.ESC_CHARACTER : RegExpTT.REDUNDANT_ESCAPE;
}
case 143: break;
case 58:
{ return (allowHexDigitClass || allowHorizontalWhitespaceClass ? RegExpTT.CHAR_CLASS : StringEscapesTokenTypes.INVALID_CHARACTER_ESCAPE_TOKEN);
}
case 144: break;
case 59:
{ return commentMode ? RegExpTT.CHARACTER : RegExpTT.REDUNDANT_ESCAPE;
}
case 145: break;
case 60:
{ yypopstate(); return RegExpTT.QUOTE_END;
}
case 146: break;
case 61:
// lookahead expression with fixed base length
zzMarkedPos = Character.offsetByCodePoints
(zzBufferL/*, zzStartRead, zzEndRead - zzStartRead*/, zzStartRead, 1);
@@ -1024,8 +1033,8 @@ class _RegExLexer implements FlexLexer {
}
return RegExpTT.CHARACTER;
}
case 143: break;
case 60:
case 147: break;
case 62:
{ if (allowPosixBracketExpressions) {
yybegin(BRACKET_EXPRESSION);
return RegExpTT.BRACKET_EXPRESSION_BEGIN;
@@ -1034,97 +1043,97 @@ class _RegExLexer implements FlexLexer {
return RegExpTT.CHARACTER;
}
}
case 144: break;
case 61:
case 148: break;
case 63:
{ if (!allowNestedCharacterClasses) return RegExpTT.CHARACTER;
return RegExpTT.REDUNDANT_ESCAPE;
}
case 145: break;
case 62:
case 149: break;
case 64:
{ if (allowNestedCharacterClasses) return RegExpTT.ANDAND; else yypushback(1); return RegExpTT.CHARACTER;
}
case 146: break;
case 63:
case 150: break;
case 65:
{ yybegin(CLASS2); return RegExpTT.BRACKET_EXPRESSION_END;
}
case 147: break;
case 64:
case 151: break;
case 66:
{ yybegin(PY_COND_REF); return RegExpTT.PYTHON_COND_REF;
}
case 148: break;
case 65:
case 152: break;
case 67:
{ yybegin(NAMED_GROUP); capturingGroupCount++; return RegExpTT.RUBY_NAMED_GROUP;
}
case 149: break;
case 66:
case 153: break;
case 68:
{ yybegin(QUOTED_NAMED_GROUP); capturingGroupCount++; return RegExpTT.RUBY_QUOTED_NAMED_GROUP;
}
case 150: break;
case 67:
case 154: break;
case 69:
{ return RegExpTT.NON_CAPT_GROUP;
}
case 151: break;
case 68:
case 155: break;
case 70:
{ return RegExpTT.POS_LOOKAHEAD;
}
case 152: break;
case 69:
case 156: break;
case 71:
{ return RegExpTT.NEG_LOOKAHEAD;
}
case 153: break;
case 70:
case 157: break;
case 72:
// lookahead expression with fixed base length
zzMarkedPos = Character.offsetByCodePoints
(zzBufferL/*, zzStartRead, zzEndRead - zzStartRead*/, zzStartRead, 1);
{ if (allowEmptyCharacterClass) yypushstate(CLASS2); else yypushstate(NEGATE_CLASS1);
return RegExpTT.CLASS_BEGIN;
}
case 154: break;
case 71:
case 158: break;
case 73:
{ return RegExpTT.OCT_CHAR;
}
case 155: break;
case 72:
case 159: break;
case 74:
{ if (xmlSchemaMode) { yypushback(1); return RegExpTT.CHAR_CLASS; } else return RegExpTT.CTRL;
}
case 156: break;
case 73:
case 160: break;
case 75:
{ yybegin(NAMED_GROUP); return RegExpTT.RUBY_NAMED_GROUP_REF;
}
case 157: break;
case 74:
case 161: break;
case 76:
{ yybegin(QUOTED_NAMED_GROUP); return RegExpTT.RUBY_QUOTED_NAMED_GROUP_REF;
}
case 158: break;
case 75:
case 162: break;
case 77:
{ yybegin(NAMED_GROUP); return RegExpTT.RUBY_NAMED_GROUP_CALL;
}
case 159: break;
case 76:
case 163: break;
case 78:
{ yybegin(QUOTED_NAMED_GROUP); return RegExpTT.RUBY_QUOTED_NAMED_GROUP_CALL;
}
case 160: break;
case 77:
case 164: break;
case 79:
{ yybegin(NAMED_GROUP); capturingGroupCount++; return RegExpTT.PYTHON_NAMED_GROUP;
}
case 161: break;
case 78:
case 165: break;
case 80:
{ yybegin(PY_NAMED_GROUP_REF); return RegExpTT.PYTHON_NAMED_GROUP_REF;
}
case 162: break;
case 79:
case 166: break;
case 81:
{ return RegExpTT.POS_LOOKBEHIND;
}
case 163: break;
case 80:
case 167: break;
case 82:
{ return RegExpTT.NEG_LOOKBEHIND;
}
case 164: break;
case 81:
case 168: break;
case 83:
{ return RegExpTT.HEX_CHAR;
}
case 165: break;
case 82:
case 169: break;
case 84:
{ if (allowOctalNoLeadingZero) return RegExpTT.OCT_CHAR;
if (yystate() == CLASS2) return RegExpTT.ESC_CHARACTER;
while (yylength() > 2 && Integer.parseInt(yytext().toString().substring(1)) > capturingGroupCount) {
@@ -1132,15 +1141,15 @@ class _RegExLexer implements FlexLexer {
}
return RegExpTT.BACKREF;
}
case 166: break;
case 83:
case 170: break;
case 85:
{ return RegExpTT.COMMENT;
}
case 167: break;
case 84:
case 171: break;
case 86:
{ return RegExpTT.UNICODE_CHAR;
}
case 168: break;
case 172: break;
default:
zzScanError(ZZ_NO_MATCH);
}
RegExpSupport/src/org/intellij/lang/regexp/regexp-lexer.flex
+5 -5
View File
@@ -102,9 +102,8 @@ ESCAPE="\\"
NAME=[:letter:]([:letter:]|_|[:digit:])*
ANY=[^]
META={ESCAPE} | {DOT} |
"^" | "$" | "?" | "*" | "+" | "|" |
{LBRACKET} | {LBRACE} | {LPAREN} | {RPAREN}
META1 = {ESCAPE} | {LBRACKET} | "^"
META2= {DOT} | "$" | "?" | "*" | "+" | "|" | {LBRACE} | {LPAREN} | {RPAREN}
CONTROL="t" | "n" | "r" | "f" | "a" | "e"
BOUNDARY="b" | "B" | "A" | "z" | "Z" | "G"
@@ -167,8 +166,9 @@ HEX_CHAR=[0-9a-fA-F]
return RegExpTT.BACKREF;
}
{ESCAPE} "-" { return RegExpTT.ESC_CHARACTER; }
{ESCAPE} {META} { return RegExpTT.ESC_CHARACTER; }
{ESCAPE} "-" { return (yystate() == CLASS2) ? RegExpTT.ESC_CHARACTER : RegExpTT.REDUNDANT_ESCAPE; }
{ESCAPE} {META1} { return RegExpTT.ESC_CHARACTER; }
{ESCAPE} {META2} { return (yystate() == CLASS2) ? RegExpTT.REDUNDANT_ESCAPE : RegExpTT.ESC_CHARACTER; }
{ESCAPE} {CLASS} { return RegExpTT.CHAR_CLASS; }
{ESCAPE} "R" { return RegExpTT.CHAR_CLASS; }
{ESCAPE} {PROP} { yypushstate(PROP); return RegExpTT.PROPERTY; }
RegExpSupport/testData/RETest.xml
+4
View File
@@ -430,6 +430,10 @@
<pattern>\X</pattern>
<expected>ERR</expected>
</test>
<test>
<pattern><![CDATA[<weak_warning descr="Redundant character escape">\-</weak_warning>[<weak_warning descr="Redundant character escape">\*</weak_warning>\-\[\]\\<weak_warning descr="Redundant character escape">\+]</weak_warning>]]></pattern>
<expected>OK</expected>
</test>
</charclasses>
<groups>