* src/jim.c: remove bogus return value from if {[expr]} {xx} when

	{xx} is not run.

1 files changed, 44 insertions, 3 deletions

diff --git a/ecos/language/tcl/jim/current/src/jim.c b/ecos/language/tcl/jim/current/src/jim.c
index fdbdf18..4ec8dc9 100644
--- a/ecos/language/tcl/jim/current/src/jim.c
+++ b/ecos/language/tcl/jim/current/src/jim.c
@@ -2178,6 +2178,10 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 		int spad;

 		int altfm;

 		int forceplus;

+		int prec;

+		int inprec;

+		int haveprec;

+		int accum;

 

         while (*fmt != '%' && fmtLen) {

             fmt++; fmtLen--;

@@ -2192,6 +2196,9 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 		ljust = 0;

 		altfm = 0;

 		forceplus = 0;

+		inprec = 0;

+		haveprec = 0;

+		prec = -1; /* not found yet */

     next_fmt:

 		if( fmtLen <= 0 ){

 			break;

@@ -2236,6 +2243,11 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 			*fmt++; fmtLen--;

  			goto next_fmt;

 			

+		case '.':

+			inprec = 1;

+			*fmt++; fmtLen--;

+ 			goto next_fmt;

+			break;

 		case '1':

 		case '2':

 		case '3':

@@ -2245,11 +2257,17 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 		case '7':

 		case '8':

 		case '9':

-			width = 0;

+			accum = 0;

 			while( isdigit(*fmt) && (fmtLen > 0) ){

-				width = (width * 10) + (*fmt - '0');

+				accum = (accum * 10) + (*fmt - '0');

 				fmt++;  fmtLen--;

 			}

+			if( inprec ){

+				haveprec = 1;

+				prec = accum;

+			} else {

+				width = accum;

+			}

 			goto next_fmt;

 		case '*':

 			/* suck up the next item as an integer */

@@ -2262,11 +2280,21 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 				Jim_FreeNewObj(interp, resObjPtr );

 				return NULL;

 			}

+			if( inprec ){

+				haveprec = 1;

+				prec = wideValue;

+				if( prec < 0 ){

+					/* man 3 printf says */

+					/* if prec is negative, it is zero */

+					prec = 0;

+				}

+			} else {

 			width = wideValue;

 			if( width < 0 ){

 				ljust = 1;

 				width = -width;

 			}

+			}

 			objv++;

 			goto next_fmt;

 			break;

@@ -2311,6 +2339,16 @@ Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
 			/* skip ahead */

 			cp = strchr(cp,0);

 		}

+		/* did we find a period? */

+		if( inprec ){

+			/* then add it */

+			*cp++ = '.';

+			/* did something occur after the period? */

+			if( haveprec ){

+				sprintf( cp, "%d", prec );

+			}

+			cp = strchr(cp,0);

+		}

 		*cp = 0;

 

 		/* here we do the work */

@@ -9993,7 +10031,10 @@ static int Jim_IfCoreCommand(Jim_Interp *interp, int argc,
             if (boolean)

                 return Jim_EvalObj(interp, argv[current]);

              /* Ok: no else-clause follows */

-            if (++current >= argc) return JIM_OK;

+            if (++current >= argc) {

+            	Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));            	

+            	return JIM_OK;

+            }

             falsebody = current++;

             if (Jim_CompareStringImmediate(interp, argv[falsebody],

                         "else")) {