Made BASIC booleans print as true and false

Changelog.txt

@@ -3,6 +3,7 @@ Version 6.6.0
 - Implemented proper boolean type for C
 - Fixed -- operator for floats
 - Made the BASIC boolean type a distinct type
+- Made BASIC booleans print as "true" and "false"
 
 Version 6.5.4
 - Minor optimization improvement (and major documentation improvements) courtesy of Ada

Test/Expect/basexec01.txt

@@ -20,9 +20,9 @@ x, scaled	100000	10000.	10000.	1.0000E-04
 1.0000E-08
 asc: 1, 0
 string tests:
-abc	abc	< = >: 0	-1	0
-abc	a	< = >: 0	0	-1
-def	zzz	< = >: -1	0	0
+abc	abc	< = >: false	true	false
+abc	a	< = >: false	false	true
+def	zzz	< = >: true	false	false
 str,n: hello,7
   left: hello right: hello
 str,n: goodbye,3

Test/Expect/basexec03.txt

@@ -1,22 +1,22 @@
-hello, world!
-HELLO, WORLD!
-
-GOODBYE!
-closed handle
-  +0:+000:   0: 000:  0:000
- -99:-099: -99:-099:-99:-99
- +99:+099:  99: 099: 99:099
- x   xx   xxxxxxx   xxxxxx   xxxxxxx
-[a] [ab] [abc    ] [   abc] [  abc  ]
--2 -3
-0.3000
-0.4000
-0.5000
-0.6000
-0.7000
-0.8000
-0.9000
-1.0000
-0 : a, b = 	0	-1
-1 : a, b = 	-1	0
-2 : a, b = 	-1	-1
+hello, world!
+HELLO, WORLD!
+
+GOODBYE!
+closed handle
+  +0:+000:   0: 000:  0:000
+ -99:-099: -99:-099:-99:-99
+ +99:+099:  99: 099: 99:099
+ x   xx   xxxxxxx   xxxxxx   xxxxxxx
+[a] [ab] [abc    ] [   abc] [  abc  ]
+-2 -3
+0.3000
+0.4000
+0.5000
+0.6000
+0.7000
+0.8000
+0.9000
+1.0000
+0 : a, b = 	false	true
+1 : a, b = 	true	false
+2 : a, b = 	true	true

frontends/basic/basiclang.c

@@ -838,6 +838,8 @@ ParsePrintStatement(AST *ast)
         } else if (IsGenericType(type) || IsPointerType(type)) {
             // create a hex call
             seq = addPrintHex(seq, handle, basic_print_unsigned, expr, fmtAst);
+        } else if (IsBoolType(type)) {
+            seq = addPrintCall(seq, handle, basic_print_boolean, expr, fmtAst);
         } else if (IsUnsignedType(type)) {
             if (IsInt64Type(type)) {
                 seq = addPrintDec(seq, handle, basic_print_longunsigned, expr, fmtAst);

frontends/common.h

@@ -1082,6 +1082,7 @@ extern AST *basic_print_unsigned_3;
 extern AST *basic_print_unsigned_4;
 extern AST *basic_print_char;
 extern AST *basic_print_nl;
+extern AST *basic_print_boolean;
 extern AST *basic_put;
 extern AST *basic_print_longinteger;
 extern AST *basic_print_longunsigned;

frontends/types.c

@@ -50,6 +50,7 @@ AST *basic_print_unsigned_3;
 AST *basic_print_unsigned_4;
 AST *basic_print_longinteger;
 AST *basic_print_longunsigned;
+AST *basic_print_boolean;
 AST *basic_print_char;
 AST *basic_print_nl;
 AST *basic_put;
@@ -2281,6 +2282,7 @@ InitGlobalFuncs(void)
         basic_print_string = getBasicPrimitive("_basic_print_string");
         basic_print_char = getBasicPrimitive("_basic_print_char");
         basic_print_nl = getBasicPrimitive("_basic_print_nl");
+        basic_print_boolean = getBasicPrimitive("_basic_print_boolean");
         basic_put = getBasicPrimitive("_basic_put");
         basic_lock_io = getBasicPrimitive("__lockio");
         basic_unlock_io = getBasicPrimitive("__unlockio");

include/libsys/basicfmt.c

@@ -150,6 +150,12 @@ int _basic_print_string(unsigned h, const char *ptr, unsigned fmt)
     return _fmtstr(tf, fmt, ptr);
 }
 
+int _basic_print_boolean(unsigned h, int x, unsigned fmt)
+{
+    const char *ptr = x ? "true" : "false";
+    return _basic_print_string(h, ptr, fmt);
+}
+
 int _basic_print_unsigned(unsigned h, int x, unsigned fmt, int base)
 {
     TxFunc tf = _gettxfunc(h);

sys/common.spin

@@ -330,6 +330,7 @@ pri {++complexio} file "libsys/basicfmt.c" _basic_close(h)
 pri {++complexio} file "libc/unix/posixio.c" _freefile() : r=long
 pri file "libsys/basicfmt.c" _basic_print_nl(h)
 pri file "libsys/basicfmt.c" _basic_print_char(h, c, fmt = 0)
+pri file "libsys/basicfmt.c" _basic_print_boolean(h, c, fmt = 0)
 pri file "libsys/basicfmt.c" _basic_print_string(h, ptr, fmt = 0)
 pri file "libsys/basicfmt.c" _basic_print_integer(h, x, fmt = 0, base=10)
 pri file "libsys/basicfmt.c" _basic_print_integer_2(h, x1, x2, fmt = 0, base=10)