Allow autocompletion of multiple commands in console input

Author: bradharding

releasenotes.md

@@ -14,7 +14,8 @@
   * A bug is fixed whereby it sometimes wasn’t possible to scroll all the way to the top of the console.
   * The scroll bar’s thumb in the console is now sized more accurately, and no longer gets too small such that its grip isn’t shown.
 * Long lines in the console can now wrap over multiple lines.
-* Minor improvements have been made to text autocompleted in the console by pressing the <kbd><b>TAB</b></kbd> key.
+* Minor improvements have been made to text autocompleted in the console.
+* When a semicolon is used to enter another command on the same line in the console, the <kbd><b>TAB</b></kbd> key can now be pressed to autocomplete that command.
 * Changes made to the console’s input that have been undone by pressing <kbd><b>CTRL</b></kbd> + <kbd><b>Z</b></kbd> can now be redone by pressing <kbd><b>CTRL</b></kbd> + <kbd><b>Y</b></kbd>.
 * These changes have been made to the support of `MAPINFO` lumps:
   * Maps greater than `MAP99` are now supported.

src/c_console.c

@@ -3164,18 +3164,18 @@ bool C_Responder(event_t *ev)
                 {
                     const int   scrolldirection = ((modstate & KMOD_SHIFT) ? -1 : 1);
                     const int   start = autocomplete;
+                    const bool  singlecommand = (M_StringStartsWith(consoleinput, "bind ")
+                                    || M_StringStartsWith(consoleinput, "unbind ")
+                                    || M_StringStartsWith(consoleinput, "alias "));
                     static char input[255];
                     char        prefix[255] = "";
                     int         spaces1;
                     bool        endspace1;
 
                     for (i = len - 1; i >= 0; i--)
-                        if ((consoleinput[i] == ';'
-                            && M_StringStartsWith(consoleinput, "bind")
-                            && M_StringStartsWith(consoleinput, "unbind")
-                            && M_StringStartsWith(consoleinput, "alias"))
+                        if ((!singlecommand && consoleinput[i] == ';')
                             || (consoleinput[i] == '"'
-                                && M_StringStartsWith(consoleinput, "bind")))
+                                && M_StringStartsWith(consoleinput, "bind ")))
                             break;
 
                     if (i == len)