only:We have to move either forward or backwards with newparse #4441
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Andrey
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126f4a736a
commit
eb651dc526
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grammar RusefiConfigGrammar;
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@header {
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package com.rusefi.generated;
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}
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// ...be generous in line endings...
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ENDL: ('\n' | '\r\n' | '\r');
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LINE_COMMENT: '!' ~[\r\n]* -> skip;
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LINE_COMMENT2: '//' ~[\r\n]* -> skip;
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WS: [ \t]+ -> skip ;
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// Special tokens need highest priority
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Struct: 'struct';
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StructNoPrefix: 'struct_no_prefix';
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EndStruct: 'end_struct';
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Definition: '#define';
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Unused: 'unused';
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Custom: 'custom';
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Datatype: (('S'|'U')('08'|'16'|'32')) | 'F32';
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Iterate: 'iterate';
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Bits: 'bits';
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Bit: 'bit';
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Array: 'array';
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Scalar: 'scalar';
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Autoscale: 'autoscale';
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ArrayDimensionSeparator: 'x';
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MUL: '*';
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DIV: '/';
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ADD: '+';
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SUB: '-';
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IntegerChars: [-]?[0-9]+;
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FloatChars: IntegerChars [.] ([0-9]+)?;
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IdentifierChars : [a-zA-Z_]([a-zA-Z0-9_]*);
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// TODO: do we need replacementIdent AND identifier to be here?
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replacementIdent: integer | '@@' IdentifierChars '@@' | identifier;
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String: [a-zA-Z_0-9.']+;
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// match a quote, then anything not a quote, then another quote
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QuotedString: '"' ~'"'* '"';
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// legacy, remove me!
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SemicolonedSuffix: ';' ~([;] | '\n')*;
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SemicolonedString: SemicolonedSuffix ';';
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integer: IntegerChars;
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floatNum: FloatChars | IntegerChars;
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expr
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: floatNum # EvalNumber
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| '{' expr '}' # EvalParens
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| expr MUL expr # EvalMul
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| expr DIV expr # EvalDiv
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| expr ADD expr # EvalAdd
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| expr SUB expr # EvalSub
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| replacementIdent # EvalReplacement
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;
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numexpr: expr;
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identifier: IdentifierChars | 'offset' | 'ArrayDimension';
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restOfLine
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: ~ENDL*
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| 'true'
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| 'false';
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definition
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: Definition identifier integer
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| Definition identifier floatNum
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| Definition identifier numexpr
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| Definition identifier restOfLine;
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struct: (Struct | StructNoPrefix) identifier ('@brief' restOfLine)? ENDL+ statements EndStruct;
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fieldOption
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: ('min' | 'max' | 'scale' | 'offset' | ) ':' numexpr
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| 'digits' ':' integer
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| ('unit' | 'comment') ':' QuotedString
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;
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fieldOptionsList
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: '(' fieldOption? (',' fieldOption)* ')'
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// TODO: why does the next line have a comma?
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| /* legacy! */ (',' | SemicolonedString) (QuotedString ',' numexpr ',' numexpr ',' numexpr ',' numexpr ',' /*digits =*/integer)?
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| /* legacy! */ SemicolonedSuffix
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;
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arrayLengthSpec: numexpr (ArrayDimensionSeparator numexpr)?;
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scalarField: identifier Autoscale? identifier (fieldOptionsList)?;
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arrayField: identifier '[' arrayLengthSpec Iterate? ']' Autoscale? identifier SemicolonedString? (fieldOptionsList)?;
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bitField: Bit identifier (',' QuotedString ',' QuotedString)? ('(' 'comment' ':' QuotedString ')')? SemicolonedSuffix?;
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unionField: 'union' ENDL+ fields 'end_union';
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field
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: scalarField
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| arrayField
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| bitField
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| unionField
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;
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fields
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: (field ENDL+)+
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;
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// Indicates X bytes of free space
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unusedField: Unused integer;
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enumVal: QuotedString | integer;
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enumRhs
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: replacementIdent
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| enumVal (',' enumVal)*
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;
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enumTypedefSuffix: /*ignored*/replacementIdent Bits ',' Datatype ',' '@OFFSET@' ',' '[' integer ':' integer ']' ',' enumRhs ;
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scalarTypedefSuffix: /*ignored*/integer Scalar ',' Datatype ',' '@OFFSET@' fieldOptionsList ;
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stringTypedefSuffix: /*ignored*/replacementIdent 'string' ',' 'ASCII' ',' '@OFFSET@' ',' numexpr;
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typedef: Custom identifier (enumTypedefSuffix | scalarTypedefSuffix | stringTypedefSuffix);
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// Root statement is allowed to appear in the root of the file
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rootStatement
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: definition
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| struct
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| typedef
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// TODO: remove me, and build multi-lambda-table in to the language
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| ('#if' | '#else' | '#endif') restOfLine
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| // empty line counts as a statement
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;
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rootStatements
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: (rootStatement ENDL+)* rootStatement
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;
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// Statements are allowed to appear inside a struct
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statement
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: rootStatement
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| field /* tolerate trailing semicolon */ (';')?
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| unusedField
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;
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statements
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: (statement ENDL+)+
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;
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content: rootStatements EOF;
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@ -1,75 +0,0 @@
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package com.rusefi;
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import com.rusefi.generated.RusefiConfigGrammarLexer;
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import com.rusefi.generated.RusefiConfigGrammarParser;
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import com.rusefi.util.SystemOut;
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import org.antlr.v4.runtime.*;
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import org.antlr.v4.runtime.tree.ParseTree;
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import org.antlr.v4.runtime.tree.ParseTreeListener;
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import org.antlr.v4.runtime.tree.ParseTreeWalker;
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import java.io.FileInputStream;
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import java.io.IOException;
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/**
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* dead code? shall we drop it yet?
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*/
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public class RusefiParseErrorStrategy extends DefaultErrorStrategy {
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private boolean hadError = false;
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public static void parseDefinitionFile(ParseTreeListener listener, String filePath) throws IOException {
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SystemOut.println("Parsing file (Antlr) " + filePath);
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CharStream in = new ANTLRInputStream(new FileInputStream(filePath));
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long start = System.nanoTime();
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parse(listener, in);
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double durationMs = (System.nanoTime() - start) / 1e6;
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SystemOut.println("Successfully parsed (Antlr) " + filePath + " in " + durationMs + "ms");
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}
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public static void parseDefinitionString(ParseTreeListener listener, String content) {
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SystemOut.println("Parsing string (Antlr)");
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CharStream in = new ANTLRInputStream(content);
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long start = System.nanoTime();
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parse(listener, in);
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double durationMs = (System.nanoTime() - start) / 1e6;
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SystemOut.println("Successfully parsed (Antlr) in " + durationMs + "ms");
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}
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private static void parse(ParseTreeListener listener, CharStream in) {
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RusefiConfigGrammarParser parser = new RusefiConfigGrammarParser(new CommonTokenStream(new RusefiConfigGrammarLexer(in)));
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RusefiParseErrorStrategy errorStrategy = new RusefiParseErrorStrategy();
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parser.setErrorHandler(errorStrategy);
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ParseTree tree = parser.content();
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new ParseTreeWalker().walk(listener, tree);
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if (errorStrategy.hadError()) {
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throw new RuntimeException("Parse failed, see error output above!");
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}
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}
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public boolean hadError() {
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return this.hadError;
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}
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@Override
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public void recover(Parser recognizer, RecognitionException e) {
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this.hadError = true;
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super.recover(recognizer, e);
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}
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@Override
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public Token recoverInline(Parser recognizer) throws RecognitionException {
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this.hadError = true;
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return super.recoverInline(recognizer);
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}
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}
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