added QSE_AWK_MODERN

qse/cmd/awk/awk.c

@@ -94,6 +94,8 @@ struct arg_t
 	qse_cmgr_t*  script_cmgr;
 	qse_cmgr_t*  console_cmgr;
 
+	unsigned int modern: 1;
+	unsigned int classic: 1;
 	int          opton;
 	int          optoff;
 	qse_ulong_t  memlimit;
@@ -380,7 +382,7 @@ struct opttab_t
 } opttab[] =
 {
 	{ QSE_T("implicit"),     QSE_AWK_IMPLICIT,       QSE_T("allow undeclared variables") },
-	{ QSE_T("explicit"),     QSE_AWK_EXPLICIT,       QSE_T("allow declared variables(local,global)") },
+	{ QSE_T("explicit"),     QSE_AWK_EXPLICIT,       QSE_T("enable local,global for variable declaration") },
 	{ QSE_T("extrakws"),     QSE_AWK_EXTRAKWS,       QSE_T("enable abort,reset,nextofile,OFILENAME,@include") },
 	{ QSE_T("rio"),          QSE_AWK_RIO,            QSE_T("enable builtin I/O including getline & print") },
 	{ QSE_T("rwpipe"),       QSE_AWK_RWPIPE,         QSE_T("allow a dual-directional pipe") },
@@ -426,6 +428,8 @@ static void print_usage (QSE_FILE* out, const qse_char_t* argv0)
 	qse_fprintf (out, QSE_T(" --script-encoding    string       specify script file encoding name\n"));
 	qse_fprintf (out, QSE_T(" --console-encoding   string       specify console encoding name\n"));
 #endif
+	qse_fprintf (out, QSE_T(" --modern                          run in the modern mode(default)\n"));
+	qse_fprintf (out, QSE_T(" --classic                         run in the classic mode\n"));
 
 	for (j = 0; opttab[j].name; j++)
 	{
@@ -519,6 +523,7 @@ static int comparg (int argc, qse_char_t* argv[], struct arg_t* arg)
 {
 	static qse_opt_lng_t lng[] = 
 	{
+
 		{ QSE_T(":implicit"),        QSE_T('\0') },
 		{ QSE_T(":explicit"),        QSE_T('\0') },
 		{ QSE_T(":extrakws"),        QSE_T('\0') },
@@ -546,6 +551,9 @@ static int comparg (int argc, qse_char_t* argv[], struct arg_t* arg)
 		{ QSE_T(":script-encoding"),  QSE_T('\0') },
 		{ QSE_T(":console-encoding"), QSE_T('\0') },
 
+		{ QSE_T("modern"),           QSE_T('\0') },
+		{ QSE_T("classic"),          QSE_T('\0') },
+
 		{ QSE_T("version"),          QSE_T('\0') },
 		{ QSE_T("help"),             QSE_T('h') },
 		{ QSE_NULL,                  QSE_T('\0') }                  
@@ -727,7 +735,16 @@ static int comparg (int argc, qse_char_t* argv[], struct arg_t* arg)
 						goto oops;
 					}
 				}
-
+				else if (qse_strcmp(opt.lngopt, QSE_T("modern")) == 0)
+				{
+					arg->modern = 1;
+				}
+				else if (qse_strcmp(opt.lngopt, QSE_T("classic")) == 0)
+				{
+					arg->classic = 1;
+				}
+				else
+				{
 					for (i = 0; opttab[i].name; i++)
 					{
 						if (qse_strcmp (opt.lngopt, opttab[i].name) == 0)
@@ -746,6 +763,7 @@ static int comparg (int argc, qse_char_t* argv[], struct arg_t* arg)
 						}
 					}
 
+				}
 				break;
 			}
 			
@@ -1010,7 +1028,9 @@ static int awk_main (int argc, qse_char_t* argv[])
 		goto oops;
 	}
 
-	qse_awk_getopt (awk, QSE_AWK_TRAIT, &i);
+	if (arg.modern) i = QSE_AWK_MODERN;
+	else if (arg.classic) i = QSE_AWK_CLASSIC;
+	else qse_awk_getopt (awk, QSE_AWK_TRAIT, &i);
 	if (arg.opton) i |= arg.opton;
 	if (arg.optoff) i &= ~arg.optoff;
 	qse_awk_setopt (awk, QSE_AWK_TRAIT, &i);

qse/include/qse/awk/awk.h

@@ -1021,11 +1021,6 @@ enum qse_awk_trait_t
 	 */
 	QSE_AWK_STRICTNAMING = (1 << 15),
 
-	/**
-	 * supports file inclusion by enabling a keyword 'include'
-	 */
-	QSE_AWK_INCLUDE = (1 << 16),
-
 	/**
 	 * makes AWK more fault-tolerant.
 	 * - prevents termination due to print and printf failure.
@@ -1046,7 +1041,11 @@ enum qse_awk_trait_t
 	QSE_AWK_CLASSIC = 
 		QSE_AWK_IMPLICIT | QSE_AWK_RIO | 
 		QSE_AWK_NEWLINE | QSE_AWK_BLANKCONCAT | QSE_AWK_PABLOCK | 
-		QSE_AWK_STRIPSTRSPC | QSE_AWK_STRICTNAMING
+		QSE_AWK_STRIPSTRSPC | QSE_AWK_STRICTNAMING,
+
+	QSE_AWK_MODERN =
+		QSE_AWK_CLASSIC | QSE_AWK_EXTRAKWS | QSE_AWK_MAPTOVAR |
+		QSE_AWK_RWPIPE | QSE_AWK_REXBOUND | QSE_AWK_TOLERANT
 };
 
 /* ------------------------------------------------------------------------ */

qse/lib/awk/awk.c

@@ -209,7 +209,7 @@ qse_awk_t* qse_awk_open (qse_mmgr_t* mmgr, qse_size_t xtnsize, qse_awk_prm_t* pr
 	qse_lda_setscale (awk->parse.params, QSE_SIZEOF(qse_char_t));
 	qse_lda_setcopier (awk->parse.params, QSE_LDA_COPIER_INLINE);
 
-	awk->opt.trait = QSE_AWK_CLASSIC;
+	awk->opt.trait = QSE_AWK_MODERN;
 #if defined(__OS2__) || defined(_WIN32) || defined(__DOS__)
 	awk->opt.trait |= QSE_AWK_CRLF;
 #endif

qse/lib/awk/parse.c

@@ -5206,6 +5206,7 @@ static qse_awk_nde_t* parse_fncall (
 	qse_awk_loc_t eloc;
 
 	head = curr = QSE_NULL;
+	call = QSE_NULL;
 	nargs = 0;
 
 	if (noarg) goto make_node;
@@ -5277,6 +5278,17 @@ make_node:
 
 		call->args = head;
 		call->nargs = nargs;
+
+		if (nargs > call->u.fnc.arg.max)
+		{
+	          SETERR_LOC (awk, QSE_AWK_EARGTM, xloc);
+			goto oops;
+		}
+		else if (nargs < call->u.fnc.arg.min)
+		{
+	          SETERR_LOC (awk, QSE_AWK_EARGTF, xloc);
+			goto oops;
+		}
 	}
 	else
 	{
@@ -5293,7 +5305,6 @@ make_node:
 			awk->parse.funs, name->ptr, name->len, call, 0) == QSE_NULL)
 		{
 			SETERR_LOC (awk, QSE_AWK_ENOMEM, xloc);
-			QSE_AWK_FREE (awk, call);
 			goto oops;
 		}
 	}
@@ -5301,6 +5312,7 @@ make_node:
 	return (qse_awk_nde_t*)call;
 
 oops:
+	if (call) QSE_AWK_FREE (awk, call);
 	if (head) qse_awk_clrpt (awk, head);
 	return QSE_NULL;
 }

qse/lib/awk/run.c

@@ -5512,9 +5512,16 @@ static qse_awk_val_t* eval_cnd (qse_awk_rtx_t* run, qse_awk_nde_t* nde)
 
 static qse_awk_val_t* eval_fnc (qse_awk_rtx_t* run, qse_awk_nde_t* nde)
 {
+	/* intrinsic function */
+
 	qse_awk_nde_fncall_t* call = (qse_awk_nde_fncall_t*)nde;
 
-	/* intrinsic function */
+	/* the parser must make sure taht the number of arguments 
+	 * is proper */ 
+	QSE_ASSERT (call->nargs >= call->u.fnc.arg.min && 
+	           call->nargs <= call->u.fnc.arg.max); 
+
+#if 0
 	if (call->nargs < call->u.fnc.arg.min)
 	{
 		SETERR_LOC (run, QSE_AWK_EARGTF, &nde->loc);
@@ -5526,6 +5533,7 @@ static qse_awk_val_t* eval_fnc (qse_awk_rtx_t* run, qse_awk_nde_t* nde)
 		SETERR_LOC (run, QSE_AWK_EARGTM, &nde->loc);
 		return QSE_NULL;
 	}
+#endif
 
 	return eval_call (run, nde, call->u.fnc.arg.spec, QSE_NULL, QSE_NULL, QSE_NULL);
 }