From 5e86b92df7cea563e247ff971eb8ecd9162b4e43 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Wed, 14 Oct 2020 20:40:15 +0300
Subject: cmd_line.cpp: move implementation from cmd_line.hpp

---
 include/winapi/cmd_line.hpp | 138 +++-----------------------------------------
 1 file changed, 9 insertions(+), 129 deletions(-)

(limited to 'include')

diff --git a/include/winapi/cmd_line.hpp b/include/winapi/cmd_line.hpp
index 025b09a..ac88286 100644
--- a/include/winapi/cmd_line.hpp
+++ b/include/winapi/cmd_line.hpp
@@ -5,22 +5,8 @@
 
 #pragma once
 
-#include "error.hpp"
-
-#include <winapi/utf8.hpp>
-
-#include <boost/algorithm/string.hpp>
 #include <boost/config.hpp>
 
-// clang-format off
-#include <windows.h>
-#include <shellapi.h>
-// clang-format on
-
-#include <cstddef>
-#include <memory>
-#include <sstream>
-#include <stdexcept>
 #include <string>
 #include <utility>
 #include <vector>
@@ -29,24 +15,9 @@ namespace winapi {
 
 class CommandLine {
 public:
-    static CommandLine query() { return build_from_string(::GetCommandLineW()); }
-
-    static CommandLine build_from_main(int argc, wchar_t* argv[]) {
-        if (argc < 1)
-            throw std::range_error{"invalid argc value"};
-
-        std::string argv0{narrow(argv[0])};
-        --argc;
-        ++argv;
-
-        std::vector<std::string> args;
-        args.reserve(argc);
+    static CommandLine query();
 
-        for (int i = 0; i < argc; ++i)
-            args.emplace_back(narrow(argv[i]));
-
-        return {std::move(argv0), std::move(args)};
-    }
+    static CommandLine build_from_main(int argc, wchar_t* argv[]);
 
     CommandLine() = default;
 
@@ -60,113 +31,22 @@ public:
 
     const std::vector<std::string>& get_args() const { return args; }
 
-    std::vector<std::string> escape_args() const {
-        std::vector<std::string> safe;
-        safe.reserve(args.size());
-        for (const auto& arg : args)
-            safe.emplace_back(escape(arg));
-        return safe;
-    }
+    std::vector<std::string> escape_args() const;
 
     static BOOST_CONSTEXPR char sep() { return ' '; }
 
-    std::string join_args() const {
-        return boost::algorithm::join(escape_args(), std::string{sep()});
-    }
+    std::string join_args() const;
 
-    std::string join() const {
-        if (!has_argv0())
-            throw std::logic_error{"argv[0] isn't defined"};
-        std::ostringstream oss;
-        oss << escape_argv0();
-        if (has_args())
-            oss << sep() << join_args();
-        return oss.str();
-    }
+    std::string join() const;
 
 private:
-    static CommandLine build_from_string(const std::string& src) {
-        return build_from_string(widen(src));
-    }
-
-    static CommandLine build_from_string(std::wstring src) {
-        boost::trim(src);
-        if (src.empty())
-            return {};
-
-        int argc = 0;
-        std::unique_ptr<wchar_t*, LocalDelete> argv{::CommandLineToArgvW(src.c_str(), &argc)};
-
-        if (argv.get() == NULL)
-            throw error::windows(GetLastError(), "CommandLineToArgvW");
-
-        if (argc == 0)
-            return {};
-
-        std::string argv0{narrow(argv.get()[0])};
-
-        std::vector<std::string> args;
-        args.reserve(argc - 1);
-
-        for (int i = 1; i < argc; ++i)
-            args.emplace_back(narrow(argv.get()[i]));
-
-        return {std::move(argv0), std::move(args)};
-    }
-
-    struct LocalDelete {
-        void operator()(wchar_t* argv[]) const { ::LocalFree(argv); }
-    };
-
-    static std::string escape_for_cmd(const std::string& arg) {
-        BOOST_STATIC_CONSTEXPR auto escape_symbol = '^';
-        static const std::string dangerous_symbols{"^!\"%&()<>|"};
-
-        auto safe = escape(arg);
-        for (const auto danger : dangerous_symbols) {
-            std::ostringstream replacement;
-            replacement << escape_symbol << danger;
-            boost::replace_all(safe, std::string{danger}, replacement.str());
-        }
-        return safe;
-    }
-
-    static std::string escape(const std::string& arg) {
-        std::string safe;
-        // Including the quotes:
-        safe.reserve(arg.length() + 2);
-
-        safe.push_back('"');
-
-        for (auto it = arg.cbegin(); it != arg.cend(); ++it) {
-            std::size_t numof_backslashes = 0;
-
-            for (; it != arg.cend() && *it == '\\'; ++it)
-                ++numof_backslashes;
-
-            if (it == arg.cend()) {
-                safe.reserve(safe.capacity() + numof_backslashes);
-                safe.append(2 * numof_backslashes, '\\');
-                break;
-            }
-
-            switch (*it) {
-                case L'"':
-                    safe.reserve(safe.capacity() + numof_backslashes + 1);
-                    safe.append(2 * numof_backslashes + 1, '\\');
-                    break;
+    static CommandLine build_from_string(const std::string&);
 
-                default:
-                    safe.append(numof_backslashes, '\\');
-                    break;
-            }
+    static CommandLine build_from_string(std::wstring);
 
-            safe.push_back(*it);
-        }
+    static std::string escape_for_cmd(const std::string&);
 
-        safe.push_back('"');
-        return safe;
-    }
+    static std::string escape(const std::string&);
 
     CommandLine(std::vector<std::string>&& args) : args(std::move(args)) {}
 
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