Add string and char support

Update some comments

Rename exprparser main proc

Don't export parse procs

Add missing utils module

Try to fix array type test

Try fix cast test error

Disable cast test for now

Revert back comment test. Have to figure out how to test without vm

tests/include/tast2.h

@@ -23,6 +23,12 @@ extern "C" {
 #define BOOL true
 #define MATHEXPR (1 + 2/3*20 - 100)
 #define ANDEXPR (100 & 11000)
+#define CASTEXPR (int) 34
+
+#define NULLCHAR '\0'
+#define OCTCHAR '\012'
+#define HEXCHAR '\xFE'
+#define TRICKYSTR "\x4E\034\nfoo\0\'\"\r\v\a\b\e\f\t\\\?bar"
 
 #define ALLSHL (SHL1 | SHL2 | SHL3)
 

tests/tast2.nim

@@ -93,11 +93,11 @@ macro testFields(t: typed, fields: static[string] = "") =
     for i in 0 ..< rl.len:
       let
         name = ($rl[i][0]).strip(chars = {'*'})
-        typ = ($(rl[i][1].repr())).replace("\n", "").replace("  ", "")
+        typ = ($(rl[i][1].repr())).replace("\n", "").replace("  ", "").replace("typeof", "type")
         n = names.find(name)
       assert n != -1, $t & "." & name & " invalid"
-      assert types[n] == typ,
-        "typeof(" & $t & ":" & name & ") != " & types[n] & ", is " & typ
+      assert types[n].replace("typeof", "type") == typ,
+        "typeof(" & $t & ":" & name & ") != " & types[n].replace("typeof", "type") & ", is " & typ
 
 assert A == 2
 assert B == 1.0
@@ -118,6 +118,12 @@ assert BINEXPR == 5
 assert BOOL == true
 assert MATHEXPR == -99
 assert ANDEXPR == 96
+assert CASTEXPR == 34.chr
+
+assert TRICKYSTR == "N\x1C\nfoo\x00\'\"\c\v\a\b\e\f\t\\\\?bar"
+assert NULLCHAR == '\0'
+assert OCTCHAR == '\n'
+assert HEXCHAR.int == 0xFE
 
 assert SHL1 == (1.uint shl 1)
 assert SHL2 == (1.uint shl 2)