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@DiegoKrupitza
DiegoKrupitza committed Jul 18, 2021
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33 changes: 33 additions & 0 deletions .gitignore
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/

### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache

### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr

### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/

### VS Code ###
.vscode/
2 changes: 2 additions & 0 deletions Readme.md
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# BoLang

169 changes: 169 additions & 0 deletions pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.diegokrupitza</groupId>
<artifactId>BoLang</artifactId>
<version>1.0-SNAPSHOT</version>

<developers>
<developer>
<name>Diego Krupitza</name>
<email>[email protected]</email>
<url>https://diegokrupitza.com</url>
</developer>
</developers>

<properties>
<java.version>11</java.version>
<maven.compiler.plugin>3.8.1</maven.compiler.plugin>
<assertj.version>3.11.1</assertj.version>
<lombok.version>1.18.20</lombok.version>
<apache.commons-lang3.version>3.10</apache.commons-lang3.version>
<apache.commons-collections4.version>4.4</apache.commons-collections4.version>
<antlr.version>4.9.1</antlr.version>
<reflections.version>0.9.12</reflections.version>
<mojo.version>3.0.0</mojo.version>
<antlr.visitor>true</antlr.visitor>
<antlr.listener>true</antlr.listener>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>

<dependencies>

<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
<version>${lombok.version}</version>
</dependency>

<!-- assertJ -->
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>

<!-- apache commons -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${apache.commons-lang3.version}</version>
</dependency>

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>${apache.commons-collections4.version}</version>
</dependency>

<!-- antlr -->
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4-runtime</artifactId>
<version>${antlr.version}</version>
</dependency>

<!-- to process classpath at runtime -->
<dependency>
<groupId>org.reflections</groupId>
<artifactId>reflections</artifactId>
<version>${reflections.version}</version>
</dependency>

<!-- testing -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-params</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>

</dependencies>

<build>
<plugins>

<!-- generating the antlr4 files -->
<plugin>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>${antlr.version}</version>
<configuration>
<listener>${antlr.listener}</listener>
<visitor>${antlr.visitor}</visitor>
</configuration>
<executions>
<execution>
<goals>
<goal>antlr4</goal>
</goals>
</execution>
</executions>
</plugin>

<!-- moving the antlr4 generated sources into the right folder -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>${mojo.version}</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${basedir}/target/generated-sources/antlr4</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.plugin}</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>

<!-- parallel testing -->
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>

</plugins>
</build>

</project>
63 changes: 63 additions & 0 deletions src/main/antlr4/com/diegokrupitza/pdfgenerator/Bo.g4
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grammar Bo;

bo : stat+ ;

scopecont : stat* ;

stat : 'return' expr ';' #returnStat
| 'if' '(' cond=expr ')' '{' ifStat=scopecont '}' 'else' '{' elseStat=scopecont '}' #ifElseStat
| 'if' '(' cond=expr ')' '{' ifStat=scopecont '}' #ifStat
| 'var' ID ':=' expr ';' #varDefStat
| ID ':=' expr ';' #varAssignStat
;

expr : '(' expr ')' # parensExpr
| op=('-'|'!') expr # unaryExpr
| left=expr op=('+' | '-' | '*' | '/' | '<' | '<=' | '>' | '>=' | '==' | '!=' | '&&' | '||' | '++') right=expr # infixExpr
| term # termExpr

;

term : num=NUM #numVal
| string #stringVal
| BOOLEAN #booleanEntry
| id=ID #identifierVal
| '#' id=ID #externalParamVal
| func=ID '(' (expr ( ',' expr )*)? ')' #funcVal
| '[' (expr ( ',' expr )*)? ']' #createList
| id=ID'[' index=expr ']' #accessStringOrListItem
;



string : STRING
;



WS : [ \t\r\n]+ -> skip ;

fragment DIGIT : [0-9];
fragment ESC: '\\"' | '\\\\';

OP_ADD: '+';
OP_SUB: '-';
OP_MUL: '*';
OP_DIV: '/';
OP_LESS: '<';
OP_LESSEQ: '<=';
OP_GREATER: '>';
OP_GREATEREQ: '>=';
OP_EQUAL: '==';
OP_NOTEQUAL: '!=';
OP_AND: '&&';
OP_OR: '||';
OP_CONCAT: '++';
OP_NEG: '!';

NUM : (DIGIT+ | (DIGIT+'.'DIGIT+) | ('.'DIGIT+));
BOOLEAN : TRUE | FALSE;
TRUE : 'TRUE' | 'True' | 'true';
FALSE : 'FALSE' | 'False' | 'false';
ID : [_A-Za-z] [_0-9A-Za-z]*;
STRING : '"' (~'"'|ESC)* '"';
48 changes: 48 additions & 0 deletions src/main/java/com/diegokrupitza/bolang/symboltable/BoSymbolTable.java
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package com.diegokrupitza.bolang.symboltable;

import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.LinkedList;
import java.util.List;

/**
* @author Diego Krupitza
* @version 1.0
* @date 08.07.21
*/
@Data
@NoArgsConstructor
public class BoSymbolTable {

private List<String> sym = new LinkedList<>();
private BoSymbolTable parent = null;

public void add(String idName) {
this.sym.add(idName);
}

/**
* Generate a new subscope based on the current object
*
* @return the newly created SymbolTable scope with the current object set as parent
*/
public BoSymbolTable createScope() {
BoSymbolTable scope = new BoSymbolTable();
scope.setParent(this);
return scope;
}

public boolean inScope(String name) {
if (this.sym.contains(name)) {
return true;
}

if (this.parent != null) {
// we have a parent this means we need to check there too
return this.parent.inScope(name);
}

return false;
}
}
12 changes: 12 additions & 0 deletions src/main/java/com/diegokrupitza/bolang/syntaxtree/BuildAstException.java
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package com.diegokrupitza.bolang.syntaxtree;

/**
* @author Diego Krupitza
* @version 1.0
* @date 18.07.21
*/
public class BuildAstException extends RuntimeException {
public BuildAstException(String s) {
super(s);
}
}
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