init

.gitignore

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+# Xmake cache
+.xmake/
+build/
+
+# MacOS Cache
+.DS_Store
+
+

src/main.cpp

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+#include <algorithm>
+#include <array>
+#include <cstdlib>
+#include <filesystem>
+#include <format>
+#include <iostream>
+#include <ranges>
+#include <regex>
+#include <string_view>
+#include <vector>
+
+namespace fs = std::filesystem;
+namespace ranges = std::ranges;
+namespace views = std::ranges::views;
+
+constexpr std::array<std::string_view, 8> exts = {
+    ".cc", ".cpp", ".c", ".py", ".rs", ".java", ".cs", ".lua"};
+
+constexpr std::string_view editor_name = "joe";
+
+std::vector<fs::path> &get_files(fs::path dir, std::vector<fs::path> &result) {
+    for (auto &entry : fs::directory_iterator(dir)) {
+        if (entry.is_directory()) {
+            get_files(entry.path(), result);
+            continue;
+        }
+        if (ranges::any_of(exts, [&](auto ext) {
+                return ext == entry.path().extension();
+            })) {
+            result.emplace_back(entry.path());
+        }
+    }
+    return result;
+}
+
+fs::path get_filepath(std::string filepath) {
+    fs::path current_path = fs::canonical(fs::current_path());
+    std::vector<fs::path> result;
+    get_files(current_path, result);
+
+    std::regex pattern(filepath, std::regex_constants::icase);
+
+    for (auto &file : result) {
+        std::cout << file.string() << std::endl;
+        if (file.filename().string() == filepath) {
+            return file;
+        }
+    }
+    for (auto &file : result) {
+        if (std::regex_search(file.filename().string(), pattern)) {
+            return file;
+        }
+    }
+    return fs::path();
+}
+
+int main(int argc, char **const argv) {
+    if (argc != 2) {
+        std::cerr << "[Info] usage: e filename\n" << argc;
+        return -1;
+    }
+    auto file = get_filepath(argv[1]);
+    std::string really_command;
+    if (file.empty()) {
+        std::format_to(std::back_inserter(really_command), "{} {}", editor_name,
+                       argv[1]);
+    } else {
+        std::format_to(std::back_inserter(really_command), "{} {}", editor_name,
+                       file.string());
+    }
+    std::cout << really_command << std::endl;
+    return 0;
+}

xmake.lua

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+set_languages("c++23")
+add_rules("mode.debug", "mode.release")
+
+target("e")
+    set_kind("binary")
+    add_files("src/*.cpp")
+
+--
+-- If you want to known more usage about xmake, please see https://xmake.io
+--
+-- ## FAQ
+--
+-- You can enter the project directory firstly before building project.
+--
+--   $ cd projectdir
+--
+-- 1. How to build project?
+--
+--   $ xmake
+--
+-- 2. How to configure project?
+--
+--   $ xmake f -p [macosx|linux|iphoneos ..] -a [x86_64|i386|arm64 ..] -m [debug|release]
+--
+-- 3. Where is the build output directory?
+--
+--   The default output directory is `./build` and you can configure the output directory.
+--
+--   $ xmake f -o outputdir
+--   $ xmake
+--
+-- 4. How to run and debug target after building project?
+--
+--   $ xmake run [targetname]
+--   $ xmake run -d [targetname]
+--
+-- 5. How to install target to the system directory or other output directory?
+--
+--   $ xmake install
+--   $ xmake install -o installdir
+--
+-- 6. Add some frequently-used compilation flags in xmake.lua
+--
+-- @code
+--    -- add debug and release modes
+--    add_rules("mode.debug", "mode.release")
+--
+--    -- add macro definition
+--    add_defines("NDEBUG", "_GNU_SOURCE=1")
+--
+--    -- set warning all as error
+--    set_warnings("all", "error")
+--
+--    -- set language: c99, c++11
+--    set_languages("c99", "c++11")
+--
+--    -- set optimization: none, faster, fastest, smallest
+--    set_optimize("fastest")
+--
+--    -- add include search directories
+--    add_includedirs("/usr/include", "/usr/local/include")
+--
+--    -- add link libraries and search directories
+--    add_links("tbox")
+--    add_linkdirs("/usr/local/lib", "/usr/lib")
+--
+--    -- add system link libraries
+--    add_syslinks("z", "pthread")
+--
+--    -- add compilation and link flags
+--    add_cxflags("-stdnolib", "-fno-strict-aliasing")
+--    add_ldflags("-L/usr/local/lib", "-lpthread", {force = true})
+--
+-- @endcode
+--
+