Add help command-line option

2 files changed, 24 insertions, 13 deletions

diff --git a/README.md b/README.md
index 53d6285..5c84500 100644
--- a/README.md
+++ b/README.md
@@ -50,19 +50,22 @@ Example with auto run:
 
 ### Interactive Commands
 
-| Key | Action                                                            |
-| :-- | :---------------------------------------------------------------- |
-| `r` | **Run** the program (auto-breaks on `main` if no breakpoints set) |
-| `b` | Add a **breakpoint** (enter name/file:line)                       |
-| `p` | **Print** variable value                                          |
-| `n` | **Step over**                                                     |
-| `s` | **Step into**                                                     |
-| `o` | **Step out**                                                      |
-| `c` | **Continue** execution                                            |
-| `w` | **Watch** expression                                              |
-| `q` | **Quit** debugger                                                 |
-| `>` | **Reduces sidebar width**                                         |
-| `<` | **Increases sidebar width**                                       |
+| Key          | Action                                                            |
+| :----------- | :---------------------------------------------------------------- |
+| `r`          | **Run** the program (auto-breaks on `main` if no breakpoints set) |
+| `b`          | Add a **breakpoint** (enter name/file:line)                       |
+| `p`          | **Print** variable value                                          |
+| `n`          | **Step over**                                                     |
+| `s`          | **Step into**                                                     |
+| `o`          | **Step out**                                                      |
+| `c`          | **Continue** execution                                            |
+| `w`          | **Watch** expression                                              |
+| `h`          | **Toggle help view**                                              |
+| `Ctrl+Left`  | **Increases sidebar width**                                       |
+| `Ctrl+Right` | **Reduces sidebar width**                                         |
+| `Ctrl+Up`    | **Increases log height**                                          |
+| `Ctrl+Down`  | **Reduces log height**                                            |
+| `q`          | **Quit** debugger                                                 |
 
 ### Input Mode
 
diff --git a/tdbg.cpp b/tdbg.cpp
index 3daede1..b078f0a 100644
--- a/tdbg.cpp
+++ b/tdbg.cpp
@@ -771,6 +771,14 @@ int main(int argc, char** argv) {
 			startup_breakpoints.push_back(argv[++i]);
 		} else if (arg == "-run") {
 			auto_run = true;
+		} else if (arg == "-h" || arg == "--help") {
+			std::cout << "Usage: " << argv[0] << " [options] <target_executable> [-- arg1 arg2 ...]\n\n"
+					  << "Options:\n"
+					  << "  -e KEY=VALUE      Set environment variable\n"
+					  << "  -b BREAKPOINT     Set startup breakpoint (name or file:line)\n"
+					  << "  -run              Automatically run the target on startup\n"
+					  << "  -h, --help        Show this help message\n";
+			return 0;
 		} else if (arg == "--") {
 			for (int j = i + 1; j < argc; ++j) {
 				debuggee_args.push_back(argv[j]);