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	Add detection of GrammarKit-generated files
GrammarKit is a plugin by JetBrains for creating custom language plugins for JetBrains IDEs (such as IntelliJ, RubyMine, CLion and more). It defines a BNF parser language which can be used to generate a parser in Java, and it also integrates JFLex for generating a lexer in Java. Both of these generated Java files can be recognised by a comment on the first line of the file, and so classifying them as generated is trivial.
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								samples/Java/GrammarKit.java
									
									
									
									
									
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							| @@ -0,0 +1,625 @@ | ||||
| // This is a generated file. Not intended for manual editing. | ||||
| package org.intellij.grammar.parser; | ||||
|  | ||||
| import com.intellij.lang.PsiBuilder; | ||||
| import com.intellij.lang.PsiBuilder.Marker; | ||||
| import static org.intellij.grammar.psi.BnfTypes.*; | ||||
| import static org.intellij.grammar.parser.GeneratedParserUtilBase.*; | ||||
| import com.intellij.psi.tree.IElementType; | ||||
| import com.intellij.lang.ASTNode; | ||||
| import com.intellij.psi.tree.TokenSet; | ||||
| import com.intellij.lang.PsiParser; | ||||
| import com.intellij.lang.LightPsiParser; | ||||
|  | ||||
| @SuppressWarnings({"SimplifiableIfStatement", "UnusedAssignment"}) | ||||
| public class GrammarParser implements PsiParser, LightPsiParser { | ||||
|  | ||||
|   public ASTNode parse(IElementType t, PsiBuilder b) { | ||||
|     parseLight(t, b); | ||||
|     return b.getTreeBuilt(); | ||||
|   } | ||||
|  | ||||
|   public void parseLight(IElementType t, PsiBuilder b) { | ||||
|     boolean r; | ||||
|     b = adapt_builder_(t, b, this, EXTENDS_SETS_); | ||||
|     Marker m = enter_section_(b, 0, _COLLAPSE_, null); | ||||
|     if (t == BNF_ATTR) { | ||||
|       r = attr(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_ATTR_PATTERN) { | ||||
|       r = attr_pattern(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_ATTR_VALUE) { | ||||
|       r = attr_value(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_ATTRS) { | ||||
|       r = attrs(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_CHOICE) { | ||||
|       r = choice(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_EXPRESSION) { | ||||
|       r = expression(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_LITERAL_EXPRESSION) { | ||||
|       r = literal_expression(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_MODIFIER) { | ||||
|       r = modifier(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_PAREN_EXPRESSION) { | ||||
|       r = paren_expression(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_PREDICATE) { | ||||
|       r = predicate(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_PREDICATE_SIGN) { | ||||
|       r = predicate_sign(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_QUANTIFIED) { | ||||
|       r = quantified(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_QUANTIFIER) { | ||||
|       r = quantifier(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_REFERENCE_OR_TOKEN) { | ||||
|       r = reference_or_token(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_RULE) { | ||||
|       r = rule(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_SEQUENCE) { | ||||
|       r = sequence(b, 0); | ||||
|     } | ||||
|     else if (t == BNF_STRING_LITERAL_EXPRESSION) { | ||||
|       r = string_literal_expression(b, 0); | ||||
|     } | ||||
|     else { | ||||
|       r = parse_root_(t, b, 0); | ||||
|     } | ||||
|     exit_section_(b, 0, m, t, r, true, TRUE_CONDITION); | ||||
|   } | ||||
|  | ||||
|   protected boolean parse_root_(IElementType t, PsiBuilder b, int l) { | ||||
|     return grammar(b, l + 1); | ||||
|   } | ||||
|  | ||||
|   public static final TokenSet[] EXTENDS_SETS_ = new TokenSet[] { | ||||
|     create_token_set_(BNF_LITERAL_EXPRESSION, BNF_STRING_LITERAL_EXPRESSION), | ||||
|     create_token_set_(BNF_CHOICE, BNF_EXPRESSION, BNF_LITERAL_EXPRESSION, BNF_PAREN_EXPRESSION, | ||||
|       BNF_PREDICATE, BNF_QUANTIFIED, BNF_REFERENCE_OR_TOKEN, BNF_SEQUENCE, | ||||
|       BNF_STRING_LITERAL_EXPRESSION), | ||||
|   }; | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // id attr_pattern? '=' attr_value ';'? | ||||
|   public static boolean attr(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr")) return false; | ||||
|     boolean r, p; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<attr>"); | ||||
|     r = consumeToken(b, BNF_ID); | ||||
|     p = r; // pin = 1 | ||||
|     r = r && report_error_(b, attr_1(b, l + 1)); | ||||
|     r = p && report_error_(b, consumeToken(b, BNF_OP_EQ)) && r; | ||||
|     r = p && report_error_(b, attr_value(b, l + 1)) && r; | ||||
|     r = p && attr_4(b, l + 1) && r; | ||||
|     exit_section_(b, l, m, BNF_ATTR, r, p, attr_recover_until_parser_); | ||||
|     return r || p; | ||||
|   } | ||||
|  | ||||
|   // attr_pattern? | ||||
|   private static boolean attr_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_1")) return false; | ||||
|     attr_pattern(b, l + 1); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   // ';'? | ||||
|   private static boolean attr_4(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_4")) return false; | ||||
|     consumeToken(b, BNF_SEMICOLON); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '(' string ')' | ||||
|   public static boolean attr_pattern(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_pattern")) return false; | ||||
|     if (!nextTokenIs(b, BNF_LEFT_PAREN)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_LEFT_PAREN); | ||||
|     r = r && consumeToken(b, BNF_STRING); | ||||
|     r = r && consumeToken(b, BNF_RIGHT_PAREN); | ||||
|     exit_section_(b, m, BNF_ATTR_PATTERN, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // !'}' | ||||
|   static boolean attr_recover_until(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_recover_until")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NOT_, null); | ||||
|     r = !consumeToken(b, BNF_RIGHT_BRACE); | ||||
|     exit_section_(b, l, m, null, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // (reference_or_token | literal_expression) !'=' | ||||
|   public static boolean attr_value(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_value")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<attr value>"); | ||||
|     r = attr_value_0(b, l + 1); | ||||
|     r = r && attr_value_1(b, l + 1); | ||||
|     exit_section_(b, l, m, BNF_ATTR_VALUE, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // reference_or_token | literal_expression | ||||
|   private static boolean attr_value_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_value_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = reference_or_token(b, l + 1); | ||||
|     if (!r) r = literal_expression(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // !'=' | ||||
|   private static boolean attr_value_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attr_value_1")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NOT_, null); | ||||
|     r = !consumeToken(b, BNF_OP_EQ); | ||||
|     exit_section_(b, l, m, null, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '{' attr* '}' | ||||
|   public static boolean attrs(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attrs")) return false; | ||||
|     if (!nextTokenIs(b, BNF_LEFT_BRACE)) return false; | ||||
|     boolean r, p; | ||||
|     Marker m = enter_section_(b, l, _NONE_, null); | ||||
|     r = consumeToken(b, BNF_LEFT_BRACE); | ||||
|     p = r; // pin = 1 | ||||
|     r = r && report_error_(b, attrs_1(b, l + 1)); | ||||
|     r = p && consumeToken(b, BNF_RIGHT_BRACE) && r; | ||||
|     exit_section_(b, l, m, BNF_ATTRS, r, p, null); | ||||
|     return r || p; | ||||
|   } | ||||
|  | ||||
|   // attr* | ||||
|   private static boolean attrs_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "attrs_1")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!attr(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "attrs_1", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '{' sequence ('|' sequence)* '}' | sequence choice_tail* | ||||
|   public static boolean choice(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _COLLAPSE_, "<choice>"); | ||||
|     r = choice_0(b, l + 1); | ||||
|     if (!r) r = choice_1(b, l + 1); | ||||
|     exit_section_(b, l, m, BNF_CHOICE, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // '{' sequence ('|' sequence)* '}' | ||||
|   private static boolean choice_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_LEFT_BRACE); | ||||
|     r = r && sequence(b, l + 1); | ||||
|     r = r && choice_0_2(b, l + 1); | ||||
|     r = r && consumeToken(b, BNF_RIGHT_BRACE); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // ('|' sequence)* | ||||
|   private static boolean choice_0_2(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_0_2")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!choice_0_2_0(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "choice_0_2", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   // '|' sequence | ||||
|   private static boolean choice_0_2_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_0_2_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_OP_OR); | ||||
|     r = r && sequence(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // sequence choice_tail* | ||||
|   private static boolean choice_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_1")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = sequence(b, l + 1); | ||||
|     r = r && choice_1_1(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // choice_tail* | ||||
|   private static boolean choice_1_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_1_1")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!choice_tail(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "choice_1_1", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '|' sequence | ||||
|   static boolean choice_tail(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "choice_tail")) return false; | ||||
|     if (!nextTokenIs(b, BNF_OP_OR)) return false; | ||||
|     boolean r, p; | ||||
|     Marker m = enter_section_(b, l, _NONE_, null); | ||||
|     r = consumeToken(b, BNF_OP_OR); | ||||
|     p = r; // pin = 1 | ||||
|     r = r && sequence(b, l + 1); | ||||
|     exit_section_(b, l, m, null, r, p, null); | ||||
|     return r || p; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // choice? | ||||
|   public static boolean expression(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "expression")) return false; | ||||
|     Marker m = enter_section_(b, l, _COLLAPSE_, "<expression>"); | ||||
|     choice(b, l + 1); | ||||
|     exit_section_(b, l, m, BNF_EXPRESSION, true, false, null); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // (attrs | rule) * | ||||
|   static boolean grammar(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "grammar")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!grammar_0(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "grammar", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   // attrs | rule | ||||
|   private static boolean grammar_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "grammar_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = attrs(b, l + 1); | ||||
|     if (!r) r = rule(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // string_literal_expression | number | ||||
|   public static boolean literal_expression(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "literal_expression")) return false; | ||||
|     if (!nextTokenIs(b, "<literal expression>", BNF_NUMBER, BNF_STRING)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _COLLAPSE_, "<literal expression>"); | ||||
|     r = string_literal_expression(b, l + 1); | ||||
|     if (!r) r = consumeToken(b, BNF_NUMBER); | ||||
|     exit_section_(b, l, m, BNF_LITERAL_EXPRESSION, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // 'private' | 'external' | 'wrapped' | ||||
|   public static boolean modifier(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "modifier")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<modifier>"); | ||||
|     r = consumeToken(b, "private"); | ||||
|     if (!r) r = consumeToken(b, "external"); | ||||
|     if (!r) r = consumeToken(b, "wrapped"); | ||||
|     exit_section_(b, l, m, BNF_MODIFIER, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // quantified | predicate | ||||
|   static boolean option(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "option")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = quantified(b, l + 1); | ||||
|     if (!r) r = predicate(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '(' expression ')' | ||||
|   public static boolean paren_expression(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "paren_expression")) return false; | ||||
|     if (!nextTokenIs(b, BNF_LEFT_PAREN)) return false; | ||||
|     boolean r, p; | ||||
|     Marker m = enter_section_(b, l, _NONE_, null); | ||||
|     r = consumeToken(b, BNF_LEFT_PAREN); | ||||
|     p = r; // pin = 1 | ||||
|     r = r && report_error_(b, expression(b, l + 1)); | ||||
|     r = p && consumeToken(b, BNF_RIGHT_PAREN) && r; | ||||
|     exit_section_(b, l, m, BNF_PAREN_EXPRESSION, r, p, null); | ||||
|     return r || p; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // predicate_sign  simple | ||||
|   public static boolean predicate(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "predicate")) return false; | ||||
|     if (!nextTokenIs(b, "<predicate>", BNF_OP_NOT, BNF_OP_AND)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<predicate>"); | ||||
|     r = predicate_sign(b, l + 1); | ||||
|     r = r && simple(b, l + 1); | ||||
|     exit_section_(b, l, m, BNF_PREDICATE, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '&' | '!' | ||||
|   public static boolean predicate_sign(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "predicate_sign")) return false; | ||||
|     if (!nextTokenIs(b, "<predicate sign>", BNF_OP_NOT, BNF_OP_AND)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<predicate sign>"); | ||||
|     r = consumeToken(b, BNF_OP_AND); | ||||
|     if (!r) r = consumeToken(b, BNF_OP_NOT); | ||||
|     exit_section_(b, l, m, BNF_PREDICATE_SIGN, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '[' expression ']' | simple quantifier? | ||||
|   public static boolean quantified(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "quantified")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _COLLAPSE_, "<quantified>"); | ||||
|     r = quantified_0(b, l + 1); | ||||
|     if (!r) r = quantified_1(b, l + 1); | ||||
|     exit_section_(b, l, m, BNF_QUANTIFIED, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // '[' expression ']' | ||||
|   private static boolean quantified_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "quantified_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_LEFT_BRACKET); | ||||
|     r = r && expression(b, l + 1); | ||||
|     r = r && consumeToken(b, BNF_RIGHT_BRACKET); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // simple quantifier? | ||||
|   private static boolean quantified_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "quantified_1")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = simple(b, l + 1); | ||||
|     r = r && quantified_1_1(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // quantifier? | ||||
|   private static boolean quantified_1_1(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "quantified_1_1")) return false; | ||||
|     quantifier(b, l + 1); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // '?' | '+' | '*' | ||||
|   public static boolean quantifier(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "quantifier")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<quantifier>"); | ||||
|     r = consumeToken(b, BNF_OP_OPT); | ||||
|     if (!r) r = consumeToken(b, BNF_OP_ONEMORE); | ||||
|     if (!r) r = consumeToken(b, BNF_OP_ZEROMORE); | ||||
|     exit_section_(b, l, m, BNF_QUANTIFIER, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // id | ||||
|   public static boolean reference_or_token(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "reference_or_token")) return false; | ||||
|     if (!nextTokenIs(b, BNF_ID)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_ID); | ||||
|     exit_section_(b, m, BNF_REFERENCE_OR_TOKEN, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // modifier* id '::=' expression attrs? ';'? | ||||
|   public static boolean rule(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "rule")) return false; | ||||
|     boolean r, p; | ||||
|     Marker m = enter_section_(b, l, _NONE_, "<rule>"); | ||||
|     r = rule_0(b, l + 1); | ||||
|     r = r && consumeToken(b, BNF_ID); | ||||
|     r = r && consumeToken(b, BNF_OP_IS); | ||||
|     p = r; // pin = 3 | ||||
|     r = r && report_error_(b, expression(b, l + 1)); | ||||
|     r = p && report_error_(b, rule_4(b, l + 1)) && r; | ||||
|     r = p && rule_5(b, l + 1) && r; | ||||
|     exit_section_(b, l, m, BNF_RULE, r, p, rule_recover_until_parser_); | ||||
|     return r || p; | ||||
|   } | ||||
|  | ||||
|   // modifier* | ||||
|   private static boolean rule_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "rule_0")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!modifier(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "rule_0", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   // attrs? | ||||
|   private static boolean rule_4(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "rule_4")) return false; | ||||
|     attrs(b, l + 1); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   // ';'? | ||||
|   private static boolean rule_5(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "rule_5")) return false; | ||||
|     consumeToken(b, BNF_SEMICOLON); | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // !'{' | ||||
|   static boolean rule_recover_until(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "rule_recover_until")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NOT_, null); | ||||
|     r = !consumeToken(b, BNF_LEFT_BRACE); | ||||
|     exit_section_(b, l, m, null, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // option + | ||||
|   public static boolean sequence(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "sequence")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _COLLAPSE_, "<sequence>"); | ||||
|     r = option(b, l + 1); | ||||
|     int c = current_position_(b); | ||||
|     while (r) { | ||||
|       if (!option(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "sequence", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     exit_section_(b, l, m, BNF_SEQUENCE, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // !(modifier* id '::=' ) reference_or_token | literal_expression | paren_expression | ||||
|   static boolean simple(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "simple")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = simple_0(b, l + 1); | ||||
|     if (!r) r = literal_expression(b, l + 1); | ||||
|     if (!r) r = paren_expression(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // !(modifier* id '::=' ) reference_or_token | ||||
|   private static boolean simple_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "simple_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = simple_0_0(b, l + 1); | ||||
|     r = r && reference_or_token(b, l + 1); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // !(modifier* id '::=' ) | ||||
|   private static boolean simple_0_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "simple_0_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b, l, _NOT_, null); | ||||
|     r = !simple_0_0_0(b, l + 1); | ||||
|     exit_section_(b, l, m, null, r, false, null); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // modifier* id '::=' | ||||
|   private static boolean simple_0_0_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "simple_0_0_0")) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = simple_0_0_0_0(b, l + 1); | ||||
|     r = r && consumeToken(b, BNF_ID); | ||||
|     r = r && consumeToken(b, BNF_OP_IS); | ||||
|     exit_section_(b, m, null, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   // modifier* | ||||
|   private static boolean simple_0_0_0_0(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "simple_0_0_0_0")) return false; | ||||
|     int c = current_position_(b); | ||||
|     while (true) { | ||||
|       if (!modifier(b, l + 1)) break; | ||||
|       if (!empty_element_parsed_guard_(b, "simple_0_0_0_0", c)) break; | ||||
|       c = current_position_(b); | ||||
|     } | ||||
|     return true; | ||||
|   } | ||||
|  | ||||
|   /* ********************************************************** */ | ||||
|   // string | ||||
|   public static boolean string_literal_expression(PsiBuilder b, int l) { | ||||
|     if (!recursion_guard_(b, l, "string_literal_expression")) return false; | ||||
|     if (!nextTokenIs(b, BNF_STRING)) return false; | ||||
|     boolean r; | ||||
|     Marker m = enter_section_(b); | ||||
|     r = consumeToken(b, BNF_STRING); | ||||
|     exit_section_(b, m, BNF_STRING_LITERAL_EXPRESSION, r); | ||||
|     return r; | ||||
|   } | ||||
|  | ||||
|   final static Parser attr_recover_until_parser_ = new Parser() { | ||||
|     public boolean parse(PsiBuilder b, int l) { | ||||
|       return attr_recover_until(b, l + 1); | ||||
|     } | ||||
|   }; | ||||
|   final static Parser rule_recover_until_parser_ = new Parser() { | ||||
|     public boolean parse(PsiBuilder b, int l) { | ||||
|       return rule_recover_until(b, l + 1); | ||||
|     } | ||||
|   }; | ||||
| } | ||||
		Reference in New Issue
	
	Block a user