added QSE_AWK_MOD_INT and QSE_AWK_MOD_FLT

added qse_awk_mod_sym_int_t and qse_awk_mod_sym_flt_t

qse/doc/page/awk.doc

@@ -7,6 +7,7 @@
  - @ref awk_ext_teq       "TEQ OPERATOR"
  - @ref awk_ext_vardecl   "VARIABLE DECLARATION"
  - @ref awk_ext_include   "INCLUDE"
+ - @ref awk_ext_funcall   "FUNCTION CALL"
  - @ref awk_ext_print     "EXTENDED PRINT/PRINTF"
  - @ref awk_ext_exprgroup "GROUPED EXPRESSION"
  - @ref awk_ext_rwpipe    "TWO-WAY PIPE"
@@ -21,6 +22,7 @@
  - @ref awk_ext_ioenc     "I/O ENCODING"
 
 
+
 @section awk_intro INTRODUCTION
 
 QSEAWK is an AWK interpreter and is a part of the @ref qse_intro "QSE" library. 
@@ -379,6 +381,33 @@ BEGIN { func_in_abc(); }
 If #QSE_AWK_NEWLINE is off, the semicolon is required.
 
 
+@subsection awk_ext_funcall FUNCTIONC CALL
+
+
+name(1);
+if there is no space between 'name' and the left parenthesis, the 
+name is treated as a function name.
+
+name (1);
+If there is a space, the name is treated as a function name if the 
+name has been declared as the function or if #QSE_AWK_IMPLICIT is on,
+it may be 'name' concatenated with the expression in the parentheses.
+
+The following is a valid program.
+@code
+@pragma implicit off
+BEGIN { name (1); }
+function name(a) { print a; }'
+@endcode
+
+However, in this program, the first 'name' becomes a named global variable.
+so the function declaration with 'name' triggers the variable redefinition 
+error.
+@pragma implicit on
+BEGIN { name (1); }
+function name(a) { print a; }'
+@endcode
+
 @subsection awk_ext_print EXTENDED PRINT/PRINTF
 When #QSE_AWK_TOLERANT is on, print and printf are treated as if
 they are function calls.  In this mode, they return a negative number

qse/include/qse/awk/awk.h

@@ -754,12 +754,18 @@ struct qse_awk_mod_t
 
 enum qse_awk_mod_sym_type_t
 {
-	QSE_AWK_MOD_FNC = 0 /*,
+	QSE_AWK_MOD_FNC = 0, 
-	QSE_AWK_MOD_VAR */
+	QSE_AWK_MOD_INT, /* constant */
+	QSE_AWK_MOD_FLT  /* constant */
+	/*QSE_AWK_MOD_STR,
+	QSE_AWK_MOD_VAR,
+	*/
 };
 typedef enum qse_awk_mod_sym_type_t qse_awk_mod_sym_type_t;
-
 typedef struct qse_awk_mod_sym_fnc_t qse_awk_mod_sym_fnc_t;
+typedef struct qse_awk_mod_sym_int_t qse_awk_mod_sym_int_t;
+typedef struct qse_awk_mod_sym_flt_t qse_awk_mod_sym_flt_t;
+
 struct qse_awk_mod_sym_fnc_t
 {
 	struct
@@ -770,12 +776,24 @@ struct qse_awk_mod_sym_fnc_t
 	qse_awk_fnc_impl_t impl;
 };
 
+struct qse_awk_mod_sym_int_t
+{
+	qse_long_t val;
+};
+
+struct qse_awk_mod_sym_flt_t
+{
+	qse_flt_t val;
+};
+
 struct qse_awk_mod_sym_t
 {
 	qse_awk_mod_sym_type_t type; 
 	union
 	{
 		qse_awk_mod_sym_fnc_t fnc;
+		qse_awk_mod_sym_int_t in;
+		qse_awk_mod_sym_flt_t flt;
 	} u;
 };
 

qse/lib/awk/parse.c

@@ -2079,6 +2079,10 @@ static qse_awk_nde_t* parse_if (qse_awk_t* awk, const qse_awk_loc_t* xloc)
 		goto oops;
 	}
 
+/* TODO: optimization. if you know 'tese' evaluates to true or false,
+ *       you can drop the 'if' statement and take either the 'then_part'
+ *       or 'else_part'. */
+
 	if (get_token(awk) <= -1) goto oops;
 
 	tloc = awk->tok.loc;
@@ -5000,30 +5004,41 @@ static qse_awk_nde_t* parse_primary_ident_segs (
 	}
 	else
 	{
-		if (sym.type == QSE_AWK_MOD_FNC)
+		switch (sym.type)
 		{
-			if (MATCH(awk,TOK_LPAREN))
+			case QSE_AWK_MOD_FNC:
-			{
+				if (MATCH(awk,TOK_LPAREN))
-				QSE_MEMSET (&fnc, 0, QSE_SIZEOF(fnc));
+				{
+					QSE_MEMSET (&fnc, 0, QSE_SIZEOF(fnc));
+					fnc.name.ptr = full->ptr; 
+					fnc.name.len = full->len;
+					fnc.arg.min = sym.u.fnc.arg.min;
+					fnc.arg.max = sym.u.fnc.arg.max;
+					fnc.handler = sym.u.fnc.impl;
+					fnc.mod = mod;
 	
-				fnc.name.ptr = full->ptr; 
+					nde = parse_fncall (awk, full, &fnc, xloc, 0);
-				fnc.name.len = full->len;
+				}
-				fnc.arg.min = sym.u.fnc.arg.min;
+				else
-				fnc.arg.max = sym.u.fnc.arg.max;
+				{
-				fnc.handler = sym.u.fnc.impl;
+					SETERR_TOK (awk, QSE_AWK_ELPAREN);
-				fnc.mod = mod;
+				}
+				break;
 
-				nde = parse_fncall (awk, full, &fnc, xloc, 0);
+			case QSE_AWK_MOD_INT:
-			}
+				nde = new_int_node (awk, sym.u.in.val, xloc);
-			else
+				/* i don't remember the symbol in the original form */
-			{
+				break;
-				SETERR_TOK (awk, QSE_AWK_ELPAREN);
+
-			}
+			case QSE_AWK_MOD_FLT:
-		}
+				nde = new_flt_node (awk, sym.u.flt.val, xloc);
-		else
+				/* i don't remember the symbol in the original form */
-		{ 
+				break;
-			/* TODO: support MOD_VAR */
+
-			SETERR_ARG_LOC (awk, QSE_AWK_EUNDEF, full->ptr, full->len, xloc);
+			default:
+				/* TODO: support MOD_VAR */
+				SETERR_ARG_LOC (awk, QSE_AWK_EUNDEF, full->ptr, full->len, xloc);
+				break;
 		}
 	}
 

qse/mod/awk/sys.c

@@ -45,14 +45,10 @@ static int fnc_fork (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
 
 static int fnc_wait (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
 {
-	qse_size_t nargs;
 	qse_long_t lv;
 	qse_awk_val_t* retv;
 	int n;
 
-	nargs = qse_awk_rtx_getnargs (rtx);
-	QSE_ASSERT (nargs == 1);
-
 /* TODO: handle more parameters */
 
 	n = qse_awk_rtx_valtolong (rtx, qse_awk_rtx_getarg (rtx, 0), &lv);
@@ -83,7 +79,6 @@ static int fnc_wait (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
 
 static int fnc_sleep (qse_awk_rtx_t* rtx, const qse_awk_fnc_info_t* fi)
 {
-	qse_size_t nargs;
 	qse_long_t lv;
 	qse_awk_val_t* retv;
 	int n;
@@ -118,11 +113,23 @@ struct fnctab_t
 	qse_awk_mod_sym_fnc_t info;
 };
 
+typedef struct inttab_t inttab_t;
+struct inttab_t
+{
+	const qse_char_t* name;
+	qse_awk_mod_sym_int_t info;
+};
+
 static fnctab_t fnctab[] =
 {
-	{ QSE_T("fork"),  { { 0, 0 }, fnc_fork } },
+	{ QSE_T("fork"),    { { 0, 0 }, fnc_fork } },
-	{ QSE_T("sleep"), { { 1, 1 }, fnc_sleep  } },
+	{ QSE_T("sleep"),   { { 1, 1 }, fnc_sleep  } },
-	{ QSE_T("wait"),  { { 1, 1 }, fnc_wait  } }
+	{ QSE_T("wait"),    { { 1, 1 }, fnc_wait  } }
+};
+
+static inttab_t inttab[] =
+{
+	{ QSE_T("WNOHANG"), { WNOHANG } }
 };
 
 static int query (qse_awk_mod_t* mod, qse_awk_t* awk, const qse_char_t* name, qse_awk_mod_sym_t* sym)
@@ -130,7 +137,7 @@ static int query (qse_awk_mod_t* mod, qse_awk_t* awk, const qse_char_t* name, qs
 	qse_cstr_t ea;
 	int i;
 
-/* TODO: binary search */
+/* TODO: binary search or something better */
 	for (i = 0; i < QSE_COUNTOF(fnctab); i++)
 	{
 		if (qse_strcmp (fnctab[i].name, name) == 0)
@@ -141,14 +148,15 @@ static int query (qse_awk_mod_t* mod, qse_awk_t* awk, const qse_char_t* name, qs
 		}
 	}
 
-/*
+	for (i = 0; i < QSE_COUNTOF(inttab); i++)
-	if (qse_strcmp (name, QSE_T("WNOHANG")) == 0)
 	{
-		sym->type = QSE_AWK_MOD_INTCON;
+		if (qse_strcmp (inttab[i].name, name) == 0)
-		sym->u.c.ivalue = WNOHANG;
+		{
-		return 0;
+			sym->type = QSE_AWK_MOD_INT;
+			sym->u.in = inttab[i].info;
+			return 0;
+		}
 	}
-*/
 
 	ea.ptr = name;
 	ea.len = qse_strlen(name);