Merge #7173 'api/ui: externalize cmdline'

closes #6162

src/nvim/eval.c

@@ -11147,17 +11147,18 @@ void get_user_input(const typval_T *const argvars,
 
   cmd_silent = false;  // Want to see the prompt.
   // Only the part of the message after the last NL is considered as
-  // prompt for the command line.
-  const char *p = strrchr(prompt, '\n');
-  if (p == NULL) {
-    p = prompt;
-  } else {
-    p++;
-    msg_start();
-    msg_clr_eos();
-    msg_puts_attr_len(prompt, p - prompt, echo_attr);
-    msg_didout = false;
-    msg_starthere();
+  // prompt for the command line, unlsess cmdline is externalized
+  const char *p = prompt;
+  if (!ui_is_external(kUICmdline)) {
+    const char *lastnl = strrchr(prompt, '\n');
+    if (lastnl != NULL) {
+      p = lastnl+1;
+      msg_start();
+      msg_clr_eos();
+      msg_puts_attr_len(prompt, p - prompt, echo_attr);
+      msg_didout = false;
+      msg_starthere();
+    }
   }
   cmdline_row = msg_row;
 
@@ -19643,6 +19644,7 @@ void ex_function(exarg_T *eap)
   int todo;
   hashitem_T  *hi;
   int sourcing_lnum_off;
+  bool show_block = false;
 
   /*
    * ":function" without argument: list functions.
@@ -19816,6 +19818,11 @@ void ex_function(exarg_T *eap)
     goto errret_2;
   }
 
+  if (KeyTyped && ui_is_external(kUICmdline)) {
+    show_block = true;
+    ui_ext_cmdline_block_append(0, (const char *)eap->cmd);
+  }
+
   // find extra arguments "range", "dict", "abort" and "closure"
   for (;; ) {
     p = skipwhite(p);
@@ -19868,7 +19875,9 @@ void ex_function(exarg_T *eap)
     if (!eap->skip && did_emsg)
       goto erret;
 
-    msg_putchar('\n');              /* don't overwrite the function name */
+    if (!ui_is_external(kUICmdline)) {
+      msg_putchar('\n');              // don't overwrite the function name
+    }
     cmdline_row = msg_row;
   }
 
@@ -19902,6 +19911,9 @@ void ex_function(exarg_T *eap)
       EMSG(_("E126: Missing :endfunction"));
       goto erret;
     }
+    if (show_block) {
+      ui_ext_cmdline_block_append(indent, (const char *)theline);
+    }
 
     /* Detect line continuation: sourcing_lnum increased more than one. */
     if (sourcing_lnum > sourcing_lnum_off + 1)
@@ -20194,6 +20206,9 @@ ret_free:
   xfree(name);
   did_emsg |= saved_did_emsg;
   need_wait_return |= saved_wait_return;
+  if (show_block) {
+    ui_ext_cmdline_block_leave();
+  }
 }
 
 /// Get a function name, translating "<SID>" and "<SNR>".