From 2a7a06b653f1165b2bdf48bb1de2779ae4cc0172 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Sat, 25 Aug 2012 12:32:44 -0700
Subject: Added recording history of used commands into file 'abc.history'
 (Windows only).

---
 src/base/cmd/cmd.c     |  2 +-
 src/base/cmd/cmd.h     |  2 +-
 src/base/cmd/cmdHist.c | 13 ++++++++++---
 3 files changed, 12 insertions(+), 5 deletions(-)

(limited to 'src/base')

diff --git a/src/base/cmd/cmd.c b/src/base/cmd/cmd.c
index e594c65a..8c40e71e 100644
--- a/src/base/cmd/cmd.c
+++ b/src/base/cmd/cmd.c
@@ -125,7 +125,7 @@ void Cmd_End( Abc_Frame_t * pAbc )
     st_generator * gen;
     char * pKey, * pValue;
 #if defined(WIN32) 
-    Cmd_HistoryWrite( pAbc );
+    Cmd_HistoryWrite( pAbc, ABC_INFINITY );
 #endif
 
 //    st_free_table( pAbc->tCommands, (void (*)()) 0, CmdCommandFree );
diff --git a/src/base/cmd/cmd.h b/src/base/cmd/cmd.h
index 4cf85a5c..fc16581f 100644
--- a/src/base/cmd/cmd.h
+++ b/src/base/cmd/cmd.h
@@ -61,7 +61,7 @@ extern void        Cmd_FlagUpdateValue( Abc_Frame_t * pAbc, const char * key, ch
 /*=== cmdHist.c ========================================================*/
 extern void          Cmd_HistoryAddCommand( Abc_Frame_t * pAbc, const char * command );
 extern void        Cmd_HistoryRead( Abc_Frame_t * p );
-extern void        Cmd_HistoryWrite( Abc_Frame_t * p );
+extern void        Cmd_HistoryWrite( Abc_Frame_t * p, int Limit );
 /*=== cmdLoad.c ========================================================*/
 extern int         CmdCommandLoad( Abc_Frame_t * pAbc, int argc, char ** argv );
 
diff --git a/src/base/cmd/cmdHist.c b/src/base/cmd/cmdHist.c
index 7222d2c5..359646a6 100644
--- a/src/base/cmd/cmdHist.c
+++ b/src/base/cmd/cmdHist.c
@@ -47,6 +47,9 @@ ABC_NAMESPACE_IMPL_START
 ***********************************************************************/
 void Cmd_HistoryAddCommand(    Abc_Frame_t * p, const char * command )
 {
+    int nLastLooked = 10;   // defines how many entries back are looked
+    int nLastSaved  = 100;  // defines how many last entries are saved
+
     char Buffer[ABC_MAX_STR];
     int Len = strlen(command);
     strcpy( Buffer, command );
@@ -60,11 +63,14 @@ void Cmd_HistoryAddCommand(    Abc_Frame_t * p, const char * command )
         char * pStr;
         int i;
         // do not enter if the same command appears among the last five commands
-        Vec_PtrForEachEntryStart( char *, p->aHistory, pStr, i, Abc_MaxInt(0, Vec_PtrSize(p->aHistory)-5) )
+        Vec_PtrForEachEntryStart( char *, p->aHistory, pStr, i, Abc_MaxInt(0, Vec_PtrSize(p->aHistory)-nLastLooked) )
             if ( !strcmp(pStr, Buffer) )
                 break;
         if ( i == Vec_PtrSize(p->aHistory) )
+        {
             Vec_PtrPush( p->aHistory, Extra_UtilStrsav(Buffer) );
+            Cmd_HistoryWrite( p, nLastSaved );
+        }
     }
 }
 
@@ -111,7 +117,7 @@ void Cmd_HistoryRead( Abc_Frame_t * p )
   SeeAlso     []
 
 ***********************************************************************/
-void Cmd_HistoryWrite( Abc_Frame_t * p )
+void Cmd_HistoryWrite( Abc_Frame_t * p, int Limit )
 {
     FILE * pFile;
     char * pStr; 
@@ -122,7 +128,8 @@ void Cmd_HistoryWrite( Abc_Frame_t * p )
         Abc_Print( 0, "Cannot open file \"abc.history\" for writing.\n" );
         return;
     }
-    Vec_PtrForEachEntry( char *, p->aHistory, pStr, i )
+    Limit = Abc_MaxInt( 0, Vec_PtrSize(p->aHistory)-Limit );
+    Vec_PtrForEachEntryStart( char *, p->aHistory, pStr, i, Limit )
         fprintf( pFile, "%s\n", pStr );
     fclose( pFile );
 }
-- 
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