fix moonp repl issue.

4 files changed, 69 insertions, 14 deletions

diff --git a/src/MoonP/moon_compiler.cpp b/src/MoonP/moon_compiler.cpp
index e961a92..d036645 100644
--- a/src/MoonP/moon_compiler.cpp
+++ b/src/MoonP/moon_compiler.cpp
@@ -42,12 +42,12 @@ inline std::string s(std::string_view sv) {
         return std::string(sv);
 }
 
-const char* moonScriptVersion() {
-        return "0.5.0-r0.3.6";
+const char* version() {
+        return "0.3.6";
 }
 
 // name of table stored in lua registry
-#define MOONP_MODULE "_modules_"
+#define MOONP_MODULE "__moon_modules__"
 
 class MoonCompilerImpl {
 public:
@@ -61,6 +61,7 @@ public:
                 BLOCK_START
                 BREAK_IF(!sameModule);
                 BREAK_IF(!L);
+                _sameModule = true;
                 int top = lua_gettop(L);
                 DEFER(lua_settop(L, top));
                 lua_pushliteral(L, MOONP_MODULE); // MOONP_MODULE
@@ -69,7 +70,6 @@ public:
                 int idx = static_cast<int>(lua_objlen(L, -1)); // idx = #tb, tb
                 BREAK_IF(idx == 0);
                 _useModule = true;
-                _sameModule = true;
                 BLOCK_END
         }
 
diff --git a/src/MoonP/moon_compiler.h b/src/MoonP/moon_compiler.h
index 573f130..d22a95a 100644
--- a/src/MoonP/moon_compiler.h
+++ b/src/MoonP/moon_compiler.h
@@ -17,7 +17,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 
 namespace MoonP {
 
-const char* moonScriptVersion();
+const char* version();
 
 struct MoonConfig {
         bool lintGlobalVariable = false;
diff --git a/src/linenoise.hpp b/src/linenoise.hpp
index 923a006..b680141 100644
--- a/src/linenoise.hpp
+++ b/src/linenoise.hpp
@@ -1864,13 +1864,14 @@ inline void refreshSingleLine(struct linenoiseState *l) {
     /* Write the prompt and the current buffer content */
     ab += l->prompt;
     ab.append(buf, len);
-    if (ab.empty()) return;
     /* Erase to right */
     snprintf(seq,64,"\x1b[0K");
     ab += seq;
-    /* Move cursor to original position. */
-    snprintf(seq,64,"\r\x1b[%dC", (int)(unicodeColumnPos(buf, pos)+pcolwid));
-    ab += seq;
+    if (!l->prompt.empty() || len != 0) {
+        /* Move cursor to original position. */
+        snprintf(seq,64,"\r\x1b[%dC", (int)(unicodeColumnPos(buf, pos)+pcolwid));
+        ab += seq;
+    }
     if (write(fd,ab.c_str(), static_cast<int>(ab.length())) == -1) {} /* Can't recover from write error. */
 }
 
diff --git a/src/moonp.cpp b/src/moonp.cpp
index a67a5a7..18eb059 100644
--- a/src/moonp.cpp
+++ b/src/moonp.cpp
@@ -96,17 +96,66 @@ int main(int narg, const char** args) {
                         return 1;
                 }
                 int count = 0;
-                bool quit = false;
                 linenoise::SetMultiLine(false);
-                while (!quit) {
+                linenoise::SetCompletionCallback([](const char* editBuffer, std::vector<std::string>& completions) {
+                        std::string buf = editBuffer;
+                        std::string tmp = buf;
+                        MoonP::Utils::trim(tmp);
+                        if (tmp.empty()) return;
+                        std::string pre;
+                        auto pos = buf.find_first_not_of(" \t\n");
+                        if (pos != std::string::npos) {
+                                pre = buf.substr(0, pos);
+                        }
+                        switch (tmp[0]) {
+                                case 'b':
+                                        completions.push_back(pre + "break");
+                                        break;
+                                case 'c':
+                                        completions.push_back(pre + "class ");
+                                        completions.push_back(pre + "continue");
+                                        break;
+                                case 'e':
+                                        completions.push_back(pre + "else");
+                                        completions.push_back(pre + "export ");
+                                        break;
+                                case 'i':
+                                        completions.push_back(pre + "import \"");
+                                        break;
+                                case 'g':
+                                        completions.push_back(pre + "global ");
+                                        break;
+                                case 'l':
+                                        completions.push_back(pre + "local ");
+                                        break;
+                                case 'm':
+                                        completions.push_back(pre + "macro expr ");
+                                        completions.push_back(pre + "macro block ");
+                                        completions.push_back(pre + "macro lua ");
+                                        break;
+                                case 's':
+                                        completions.push_back(pre + "switch ");
+                                        break;
+                                case 'u':
+                                        completions.push_back(pre + "unless ");
+                                        break;
+                                case 'w':
+                                        completions.push_back(pre + "with ");
+                                        completions.push_back(pre + "when ");
+                                        break;
+                        }
+                });
+                std::cout << "Moonscript+ "sv << MoonP::version() << '\n';
+                while (true) {
                         count++;
                         std::string codes;
-                        quit = linenoise::Readline("moon> ", codes);
+                        bool quit = linenoise::Readline("> ", codes);
+                        if (quit) return 0;
                         linenoise::AddHistory(codes.c_str());
                         MoonP::Utils::trim(codes);
                         if (codes == "$"sv) {
                                 codes.clear();
-                                for (std::string line; !linenoise::Readline("", line);) {
+                                for (std::string line; !(quit = linenoise::Readline("", line));) {
                                         auto temp = line;
                                         MoonP::Utils::trim(temp);
                                         if (temp == "$"sv) {
@@ -117,6 +166,7 @@ int main(int narg, const char** args) {
                                         linenoise::AddHistory(line.c_str());
                                         MoonP::Utils::trim(codes);
                                 }
+                                if (quit) return 0;
                         }
                         codes.insert(0, "global *\n"sv);
                         int top = lua_gettop(L);
@@ -132,6 +182,10 @@ int main(int narg, const char** args) {
                         }
                         if (lua_isnil(L, -2) != 0) {
                                 std::string err = lua_tostring(L, -1);
+                                auto modName = std::string("(repl "sv) + std::to_string(count) + "):";
+                                if (err.substr(0, modName.size()) == modName) {
+                                        err = err.substr(modName.size());
+                                }
                                 auto pos = err.find(':');
                                 if (pos != std::string::npos) {
                                         int lineNum = std::stoi(err.substr(0, pos));
@@ -271,7 +325,7 @@ int main(int narg, const char** args) {
                         std::cout << help;
                         return 0;
                 } else if (arg == "-v"sv) {
-                        std::cout << "Moonscript version: "sv << MoonP::moonScriptVersion() << '\n';
+                        std::cout << "Moonscript+ version: "sv << MoonP::version() << '\n';
                         return 0;
                 } else if (arg == "-o"sv) {
                         ++i;