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@ -1,22 +1,22 @@
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#!/usr/bin/env bellos
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# File: file_operations.bellos
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# File: file_operations.bellos
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# Demonstrating file operations
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# Writing to a file
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echo "This is a test file" > test.txt
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echo "Adding another line" > test.txt
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write test.txt "This is a test file"
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append test.txt "Adding another line"
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# Reading from a file
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echo "Contents of test.txt:"
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cat test.txt
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read test.txt
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# Using a while loop to read file line by line
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# Using a loop to read file line by line
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echo "Reading file line by line:"
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while read -r line
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for line in $(read_lines test.txt)
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do
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echo "Line: $line"
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done < test.txt
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echo "Line: ${line}"
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done
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# Cleaning up
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rm test.txt
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delete test.txt
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@ -6,9 +6,8 @@ mod utilities;
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use crate::interpreter::interpreter::Interpreter;
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use crate::lexer::lexer::Lexer;
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use crate::parser::parser::Parser;
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use crate::utilities::Token;
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use crate::utilities::utilities::Token;
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use glob::glob;
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use std::env;
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use std::fs::File;
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use std::io::{self, BufRead, Write};
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0
src/executor/executor.rs
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0
src/executor/executor.rs
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1
src/executor/mod.rs
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1
src/executor/mod.rs
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@ -0,0 +1 @@
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pub mod executor;
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@ -13,7 +13,7 @@
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use crate::utilities::ASTNode;
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use crate::utilities::utilities::ASTNode;
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use glob::glob;
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use std::collections::HashMap;
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@ -13,7 +13,7 @@
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use crate::utilities::Token;
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use crate::utilities::utilities::Token;
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pub struct Lexer {
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input: Vec<char>,
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@ -13,7 +13,7 @@
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use crate::utilities::{ASTNode, Token};
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use crate::utilities::utilities::{ASTNode, Token};
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pub struct Parser {
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tokens: Vec<Token>,
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1
src/utilities/mod.rs
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1
src/utilities/mod.rs
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@ -0,0 +1 @@
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pub mod utilities;
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75
src/utilities/utilities.rs
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75
src/utilities/utilities.rs
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@ -0,0 +1,75 @@
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// Copyright (C) 2024 Bellande Architecture Mechanism Research Innovation Center, Ronaldson Bellande
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#[derive(Debug, Clone, PartialEq)]
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pub enum Token {
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Word(String),
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Assignment,
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Pipe,
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Redirect(String),
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LeftParen,
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RightParen,
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Semicolon,
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NewLine,
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If,
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Then,
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Else,
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Fi,
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While,
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Do,
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Done,
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For,
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In,
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Function,
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Ampersand,
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}
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#[derive(Debug, Clone)]
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pub enum ASTNode {
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Command {
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name: String,
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args: Vec<String>,
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},
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Assignment {
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name: String,
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value: String,
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},
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Pipeline(Vec<ASTNode>),
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Redirect {
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node: Box<ASTNode>,
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direction: String,
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target: String,
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},
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Block(Vec<ASTNode>),
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If {
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condition: Box<ASTNode>,
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then_block: Box<ASTNode>,
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else_block: Option<Box<ASTNode>>,
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},
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While {
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condition: Box<ASTNode>,
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block: Box<ASTNode>,
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},
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For {
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var: String,
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list: Vec<String>,
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block: Box<ASTNode>,
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},
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Function {
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name: String,
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body: Box<ASTNode>,
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},
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Background(Box<ASTNode>),
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}
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