From b9ca4bb374bb650af227573139c30630d85d47da Mon Sep 17 00:00:00 2001
From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Thu, 27 Sep 2012 18:11:23 +0200
Subject: [PATCH] Add options -fe, -se, -is to load installed engines/ics from list

The volatile string options -fe, -se ('first/second engine') load the first
and second engine of the given nickname in the -firstChessProgramNames list,
including all options that were installed with it (similar to when in
WinBoard the that engine line had been selected through the Startup Dialog's
combobox). The option -is is similarly used to retrieve the line for an
ICS in the -icsNames list.
---
 args.h    |    8 ++++++++
 backend.c |   21 +++++++++++++++++++++
 backend.h |    1 +
 3 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/args.h b/args.h
index 1a16ed2..d9df08c 100644
--- a/args.h
+++ b/args.h
@@ -104,6 +104,9 @@ IcsTextMenuEntry icsTextMenuEntry[ICS_TEXT_MENU_SIZE];
 int junk;
 Boolean singleList;
 char *homeDir;
+char *firstEngineLine;
+char *secondEngineLine;
+char *icsNick;
 
 void EnsureOnScreen(int *x, int *y, int minX, int minY);
 char StringGet(void *getClosure);
@@ -172,6 +175,8 @@ ArgDescriptor argDescriptors[] = {
   { "secondChessProgram", ArgFilename, (void *) &appData.secondChessProgram,
     FALSE, (ArgIniType) SECOND_CHESS_PROGRAM },
   { "scp", ArgFilename, (void *) &appData.secondChessProgram, FALSE, INVALID },
+  { "fe", ArgString, (void *) &firstEngineLine, FALSE, "" },
+  { "se", ArgString, (void *) &secondEngineLine, FALSE, "" },
   { "firstPlaysBlack", ArgBoolean, (void *) &appData.firstPlaysBlack, FALSE, FALSE },
   { "fb", ArgTrue, (void *) &appData.firstPlaysBlack, FALSE, FALSE },
   { "xfb", ArgFalse, (void *) &appData.firstPlaysBlack, FALSE, INVALID },
@@ -230,6 +235,7 @@ ArgDescriptor argDescriptors[] = {
   { "ics", ArgTrue, (void *) &appData.icsActive, FALSE, (ArgIniType) FALSE },
   { "xics", ArgFalse, (void *) &appData.icsActive, FALSE, INVALID },
   { "-ics", ArgFalse, (void *) &appData.icsActive, FALSE, INVALID },
+  { "is", ArgString, (void *) &icsNick, FALSE, "" },
   { "internetChessServerHost", ArgString, (void *) &appData.icsHost, FALSE, (ArgIniType) "" },
   { "icshost", ArgString, (void *) &appData.icsHost, FALSE, INVALID },
   { "internetChessServerPort", ArgString, (void *) &appData.icsPort, FALSE, (ArgIniType) ICS_PORT },
@@ -1280,6 +1286,8 @@ InitAppData(char *lpCmdLine)
 
   if(appData.viewer && appData.viewerOptions[0]) ParseArgsFromString(appData.viewerOptions);
   if(appData.tourney && appData.tourneyOptions[0]) ParseArgsFromString(appData.tourneyOptions);
+  chessProgram = GetEngineLine(firstEngineLine, 0) || GetEngineLine(secondEngineLine, 1);
+  appData.icsActive = GetEngineLine(icsNick, 10);
 
   /* [HGM] make sure board size is acceptable */
   if(appData.NrFiles > BOARD_FILES ||
diff --git a/backend.c b/backend.c
index 242d064..8837d97 100644
--- a/backend.c
+++ b/backend.c
@@ -10180,6 +10180,27 @@ SwapEngines (int n)
 }
 
 int
+GetEngineLine (char *s, int n)
+{
+    int i;
+    char buf[MSG_SIZ];
+    extern char *icsNames;
+    if(!s || !*s) return 0;
+    NamesToList(n == 10 ? icsNames : firstChessProgramNames, command, mnemonic, "all");
+    for(i=1; mnemonic[i]; i++) if(!strcmp(s, mnemonic[i])) break;
+    if(!mnemonic[i]) return 0;
+    snprintf(buf, MSG_SIZ, "-%s %s", n == 10 ? "icshost" : "fcp", command[i]);
+    if(n == 1) SwapEngines(n);
+    ParseArgsFromString(buf);
+    if(n == 1) SwapEngines(n);
+    if(n == 0 && *appData.secondChessProgram == NULLCHAR) {
+	SwapEngines(1); // set second same as first if not yet set (to suppress WB startup dialog)
+	ParseArgsFromString(buf);
+    }
+    return 1;
+}
+
+int
 SetPlayer (int player, char *p)
 {   // [HGM] find the engine line of the partcipant given by number, and parse its options.
     int i;
diff --git a/backend.h b/backend.h
index 94031d2..d21379f 100644
--- a/backend.h
+++ b/backend.h
@@ -244,6 +244,7 @@ Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen));
 void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));
 void PackMove P((int fromX, int fromY, int toX, int toY, ChessSquare promoPiece));
 void ics_printf P((char *format, ...));
+int GetEngineLine P((char *nick, int engine));
 
 char *StrStr P((char *string, char *match));
 char *StrCaseStr P((char *string, char *match));
-- 
1.7.0.4