Dave Jarvis' Repositories
git clone https://repo.autonoma.ca/repo/rxm.git
Compiles and runs. No parsing, yet.
| Author | Dave Jarvis <email> |
|---|---|
| Date | 2015-02-28 19:51:24 GMT-0800 |
| Commit | 996bdf6017ce30f09029321bc61cea030579eb9e |
| Parent | f4683aa |
build.gradle
| apply plugin: "java" | ||
| +apply plugin: "application" | ||
| sourceCompatibility = 1.8 | ||
| targetCompatibility = 1.8 | ||
| + | ||
| +mainClassName = "com.whitemagicsoftware.rxm.Parser" | ||
| sourceSets { | ||
| main { | ||
| output.classesDir = "$buildDir/" | ||
| java { | ||
| srcDir "source" | ||
| } | ||
| + } | ||
| +} | ||
| + | ||
| +task copyLibraries( type: Copy ) { | ||
| + from configurations.runtime | ||
| + into "$buildDir/libs" | ||
| +} | ||
| + | ||
| +run.dependsOn( [copyLibraries] ) | ||
| + | ||
| +run { | ||
| + if( project.hasProperty( 'args' ) ) { | ||
| + args project.args.split() | ||
| } | ||
| } | ||
| +// Configure ANTLR | ||
| ext.antlr = [ | ||
| grammarPackage: "com.whitemagicsoftware.rxm.grammar", | ||
 |
||
| } | ||
| +// Run ANTLR against the grammar. | ||
| task generateGrammarSource( dependsOn: antlrOutputDir, type: JavaExec ) { | ||
| description = "Generates Java sources from ANTLR4 grammars." | ||
source/grammar/Expr.g
| -grammar Expr ; | ||
| -prog: (expr NEWLINE)* ; | ||
| -expr: expr ('*'|'/') expr | ||
| - | expr ('+'|'-') expr | ||
| - | INT | ||
| - | '(' expr ')' ; | ||
| -NEWLINE : [\r\n]+ ; | ||
| -INT : [0-9]+ ; | ||
| - | ||
source/grammar/Query.g
| +/* Relational eXpression Map | ||
| + */ | ||
| +grammar Query ; | ||
| + | ||
| +query: root line where? EOF ; | ||
| + | ||
| +/* Define the root, line map, and JOIN clauses. | ||
| + */ | ||
| +root: (TOKEN_ROOT TOKEN_MAP element) | module ; | ||
| +line: statement* ; | ||
| + | ||
| +statement: (TOKEN_POP | TOKEN_GLOB | map | iJoin | oJoin | include) ',' ; | ||
| +map : entity TOKEN_MAP node ; | ||
| +iJoin : tableColumn TOKEN_INNER tableColumn ; | ||
| +oJoin : tableColumn TOKEN_OUTER tableColumn ; | ||
| +include : TOKEN_IMPORT TOKEN_ID ; | ||
| +module : TOKEN_MODULE TOKEN_ID ; | ||
| + | ||
| +table : TOKEN_ID ; | ||
| +column : '.' TOKEN_ID ; | ||
| +tableColumn: table column ; | ||
| + | ||
| +attribute : '@' TOKEN_ID ; | ||
| +element : TOKEN_ID ; | ||
| +path : element '/' element ; | ||
| +entity : table | column ; | ||
| +node : element | attribute ; | ||
| + | ||
| +/* Define the WHERE clause. | ||
| + */ | ||
| +where : TOKEN_ID ; | ||
| + | ||
| +/* Define the tokens. | ||
| + */ | ||
| +TOKEN_ID : [A-Za-z0-9_]+ ; | ||
| +TOKEN_EOL : [\r\n]+ -> skip; | ||
| +TOKEN_WS : [ \t\r\n]+ -> skip ; | ||
| +TOKEN_POP : '^' ; | ||
| +TOKEN_GLOB : '.*' ; | ||
| +TOKEN_ROOT : 'root' ; | ||
| +TOKEN_MAP : '>' ; | ||
| +TOKEN_INNER : '+>' ; | ||
| +TOKEN_OUTER : '->' ; | ||
| +TOKEN_IMPORT: 'import' ; | ||
| +TOKEN_MODULE: 'module' ; | ||
| + | ||
| Delta | 64 lines added, 9 lines removed, 55-line increase |
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