77 lines
1.4 KiB
C++
77 lines
1.4 KiB
C++
#ifndef __mpw_shell_h__
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#define __mpw_shell_h__
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#include <string>
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#include <vector>
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#include <unordered_map>
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#include <memory>
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#include <cstdint>
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#include "environment.h"
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#include "fdset.h"
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const unsigned char escape = 0xb6;
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class token {
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public:
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enum {
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text = 0,
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eof,
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equivalent,
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not_equivalent,
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// remainder are characters.
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};
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unsigned type = text;
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std::string string;
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token() = default;
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token(token &&) = default;
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token(const token&) = default;
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token &operator=(token &&) = default;
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token &operator=(const token &) = default;
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token(const std::string &s, unsigned t = text) :
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type(t), string(s)
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{}
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token(std::string &&s, unsigned t = text) :
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type(t), string(std::move(s))
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{}
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operator std::string() const {
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return string;
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}
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};
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std::vector<token> tokenize(std::string &s, bool eval = false);
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std::string expand_vars(const std::string &s, class Environment &, const fdmask &fds = fdmask());
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//std::string quote(std::string &&s);
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std::string quote(const std::string &s);
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struct process;
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struct value;
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class fdmask;
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void parse_tokens(std::vector<token> &&tokens, process &p);
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int32_t evaluate_expression(Environment &e, const std::string &name, std::vector<token> &&tokens);
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int read_file(Environment &e, const std::string &file, const fdmask &fds = fdmask());
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int read_string(Environment &e, const std::string &s, const fdmask &fds = fdmask());
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int read_fd(Environment &e, int fd, const fdmask &fds = fdmask());
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#endif
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