Initial commit

include/ast/ast_executable.hpp

@@ -0,0 +1,78 @@
+#pragma once
+
+#include <memory>
+#include <stdexcept>
+#include <optional>
+
+#include "ast/ast_base.hpp"
+#include "ast/ast_token.hpp"
+#include "ast/ast_component.hpp"
+
+
+#include "lexer.hpp"
+#include "util/text.hpp"
+
+namespace fsh {
+
+class CommandNode : public ExecutableNode {
+    using ArgumentVec = std::vector<std::shared_ptr<CommandArgumentNode> >;
+    public:
+    static std::shared_ptr<CommandNode> build(std::list<Token>::iterator& it);
+    virtual void print(int indent) override;
+    virtual void execute(std::istream &in, std::ostream &out) override;
+
+    protected:
+    CommandNode(
+        TokenNode<TokenType::WORD>::shared cmd_name, 
+        TokenNode<TokenType::FLAG>::shared flag, 
+        ArgumentVec args,
+        std::shared_ptr<RedirectsNode> redirects
+    ) : ExecutableNode(NodeType::COMMAND, "CommandNode"),
+        cmd_name(cmd_name->gvalue()),
+        flag(util::mk_optional(flag)),
+        redirects(redirects),
+        args(args) {}
+    
+    private:
+    std::string cmd_name;
+    std::optional<std::string> flag;
+    std::shared_ptr<RedirectsNode> redirects;
+    ArgumentVec args;
+};
+
+class PipeLineNode : public ExecutableNode {
+    public:
+    static std::shared_ptr<PipeLineNode> build(std::list<Token>::iterator& it);
+    virtual void print(int indent) override;
+    virtual void execute(std::istream &in, std::ostream &out) override;
+
+    protected:
+    PipeLineNode(std::shared_ptr<CommandNode> l, std::shared_ptr<ExecutableNode> r) 
+        : ExecutableNode(NodeType::PIPELINE_COMMAND, "PipeLine"),
+          l_command(l),
+          r_command(r) {}
+    
+    private:
+    std::shared_ptr<ExecutableNode> l_command;
+    std::shared_ptr<ExecutableNode> r_command;
+};
+
+
+class CommandLineNode : public ExecutableNode {
+    public:
+    static std::shared_ptr<CommandLineNode> build(std::list<Token>::iterator& it);
+    virtual void print(int indent) override;
+    virtual void execute(std::istream &in, std::ostream &out) override;
+
+    protected:
+    CommandLineNode(std::shared_ptr<ExecutableNode> command, std::shared_ptr<ExecutableNode> pipe = nullptr) 
+        : ExecutableNode(NodeType::COMMAND_LINE, "CommandLine"),
+        command(command),
+        pipe(pipe) {}
+    
+    private:
+    std::shared_ptr<ExecutableNode> command;
+    std::shared_ptr<ExecutableNode> pipe;
+};
+
+}