From f9b3d49480bbbf3200dde21ca58dcd5ae41bcfa1 Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Fri, 7 Dec 2018 22:35:01 +0100
Subject: [PATCH] Parse 'difficult' commands in separate routine

The parsing of (most) commands that can only be executed when not searching
is now put in a separate routine DoCommand(). This in preparation for
having the engine thread do this.
---
 UCI2WB.c |   24 ++++++++++++++++++++----
 1 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/UCI2WB.c b/UCI2WB.c
index e87504a..4cbf5a8 100644
--- a/UCI2WB.c
+++ b/UCI2WB.c
@@ -436,10 +436,13 @@ Move4Engine(char *m)
     }
 }
 
+int DoCommand (char *line);
+char mySide;
+
 void
 GUI2Engine()
 {
-    char line[256], command[256], *p, *q, *r, mySide, type[99];
+    char line[256], command[256], *p;
 
     while(1) {
 	int i, difficult, think=0;
@@ -529,6 +532,18 @@ GUI2Engine()
 	       !strcmp(command, "force") || !strcmp(command, "result")) { EPRINT((f, "# stop\n")); fflush(toE); }
 	    Sync(PAUSE); Release(); // block processing of difficult commands during thinking; send backlog left because of race
 	}
+	if(DoCommand(line)) goto nomove;
+    }
+}
+
+int
+DoCommand (char *line)
+{
+    char command[256], *p, *q, *r, type[99];
+    int i;
+
+    sscanf(line, "%s", command);
+
 	if(!strcmp(command, "new")) {
 	    computer = BLACK; moveNr = 0; depth = -1; move[0][0] = 0;
 	    stm = WHITE; strcpy(iniPos, "position startpos"); frc &= ~1;
@@ -585,13 +600,13 @@ GUI2Engine()
 	}
 	else if(!strcmp(command, ".")) {
 	    printf("stat01: %d %d %d %d 100 %s\n", statTime, statNodes, statDepth, 100-currNr, currMove);
-	    goto nomove;
+	    return 1;
 	}
 	else if(!strcmp(command+2, "clude") && collect > 2) { // include or exclude
 	    int all = !strcmp(line+8, "all"), in = command[1] == 'n';
 	    inex = 1; line[strlen(line)-1] = sm = 0; // strip LF and clear sm flag
 	    for(i=1; i<nr; i++) { if(!strcmp(line+8, moveMap[i]) || all) on[i] = in; sm |= on[i]+1; } // sm: 2 = enabled, 1 = disabled
-	    if(!(sm & 2)) goto nomove; // no moves enabled; continue current search
+	    if(!(sm & 2)) return 1; // no moves enabled; continue current search
 	    if(computer == ANALYZE) StopPonder(1), searching = 0; // abort old analysis
 	}
 	else if(!strcmp(command, "xboard")) ;
@@ -616,7 +631,8 @@ GUI2Engine()
 	    computer = NONE;
 	}
 	else if(!strcmp(command, "quit"))   { EPRINT((f, "# quit\n")) fflush(toE), exit(atoi(line+4)); }
-    }
+
+    return 0;
 }
 
 int
-- 
1.7.0.4