Add WIP Python REPL interface

- Requires Python >= 3.0.0 and linenoise or linenoise-ng
- WIP: not built into the browser itself

2 files changed, 55 insertions, 0 deletions

diff --git a/src/cli/cli.cpp b/src/cli/cli.cpp
new file mode 100644
index 0000000..ae3795e
--- /dev/null
+++ b/src/cli/cli.cpp
@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+//#include <string.h>
+#include <linenoise.h>
+#include <Python.h>
+
+int main(int argc, char** argv)
+{
+    printf("cli test application\n");
+
+    wchar_t *program = Py_DecodeLocale(argv[0], NULL);
+    if (program == NULL) {
+        fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
+        exit(1);
+    }
+
+    // inform the interpreter about paths to run-time libraries
+    Py_SetProgramName(program);  /* optional but recommended */
+
+
+    // Initialize the python interpreter
+    Py_Initialize();
+
+    PyRun_SimpleString("print('Python interpreter ready')\n");
+
+    const char* prompt = "poi> ";
+
+    while(true) {
+        char *cmd = linenoise(prompt);
+
+        if(cmd == nullptr || *cmd == '\0') {
+            printf("break\n");
+            free(cmd);
+            break;
+        }
+
+        //printf("echo(%i):'%s'\n", strlen(cmd), cmd);
+        PyRun_SimpleString(cmd);
+        free(cmd);
+    }
+
+    // finalize the interpreter
+    if (Py_FinalizeEx() < 0) {
+        exit(120);
+    }
+
+    //
+    PyMem_RawFree(program);
+
+    return 0;
+}
diff --git a/src/cli/meson.build b/src/cli/meson.build
new file mode 100644
index 0000000..298e1db
--- /dev/null
+++ b/src/cli/meson.build
@@ -0,0 +1,4 @@
+cli_demo = executable('cli', install: false, dependencies: [ optional_deps ],
+    sources: [ 'cli.cpp' ]
+)
+