add info func

stdlib/stdlib.go

@@ -19,6 +19,7 @@ package stdlib
 
 import (
     "os"
+    "fmt"
     "gitlab.com/whom/shs/ast"
 )
 
@@ -196,6 +197,12 @@ func GenFuncTable() ast.FuncTable {
             Args:              0,
         },
 
+        "info": &ast.Function{
+            Function:    sh_info,
+            Name:   "Shell Info",
+            TimesCalled:       0,
+            Args:              1,
+        },
     }
 
     return stdlib
@@ -205,3 +212,33 @@ func exit_shell(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     os.Exit(0)
     return nil // I hope execution doesnt get here
 }
+
+func sh_info(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
+    switch in.Tag {
+    case ast.BOOL:
+        fmt.Printf("BOOL LITERAL\nValue: %s\n", in.Value())
+    case ast.STRING:
+        fmt.Printf("STRING LITERAL \nValue: %s\n", in.Value())
+    case ast.NUMBER:
+        fmt.Printf("NUMBER LITERAL \nValue: %s\n", in.Value())
+    case ast.LIST:
+        fmt.Printf("LIST \nString Value: %s, AST:\n", in.String())
+        ast.PrintSExprsIndividually(in)
+    case ast.SYMBOL:
+        repr := ast.GetVar(in.Value(), vt)
+        if repr != nil {
+            fmt.Printf("VARIABLE\nTYPE: %s\nVALUE: %s\n", ast.GetTagAsStr(repr.Tag), repr.Value())
+            break
+        }
+
+        funct := ast.GetFunction(in.Value(), ft)
+        if funct != nil {
+            fmt.Printf("FUNCTION\nNAME: %s\nTIMES CALLED: %s\nNUM ARGS: %d\n", funct.Name, funct.TimesCalled, funct.Args)
+            break
+        }
+
+        fmt.Printf("UNKNOWN SYMBOL\n")
+    }
+
+    return nil
+}