load from config file

cmd/shs_repl.go

@@ -18,21 +18,26 @@
 package main
 
 import (
-    "os"
     "fmt"
     "strconv"
     "github.com/chzyer/readline"
     "gitlab.com/whom/shs/ast"
     "gitlab.com/whom/shs/log"
-    "gitlab.com/whom/shs/stdlib"
+    "gitlab.com/whom/shs/config"
 )
 
 const (
     def_prompt  string = "λ "
 )
 
-func setLogLvl() {
-    loglvl := os.Getenv("SH_LOGGING")
+func setLogLvl(vars ast.VarTable) {
+    var loglvl string
+
+    loglvl_t := ast.GetVar("SH_LOGGING", vars)
+    if loglvl_t != nil {
+        loglvl = loglvl_t.Value()
+    }
+
     if loglvl != "" {
         llvl, err := strconv.ParseInt(loglvl, 10, 8)
         if err != nil {
@@ -46,23 +51,28 @@ func setLogLvl() {
 }
 
 func main() {
-    debug  := os.Getenv("SH_DEBUG_MODE")
-    hist   := os.Getenv("SH_HIST_FILE")
-    prompt := os.Getenv("SHS_SH_PROMPT")
+    var prompt string
+    var debug string
+    var hist string
 
-    var vars ast.VarTable
-    var funcs ast.FuncTable
-
-    funcs = stdlib.GenFuncTable()
-    vars = &map[string]*ast.Token{}
-
-    ast.InitVarTable(vars)
     ast.SyncTablesWithOSEnviron = true
     ast.ExecWhenFuncUndef = true
 
-    var err error
+    vars, funcs := config.InitFromConfig(".shsrc")
+    debug_t := ast.GetVar("SH_DEBUG_MODE", vars)
+    if debug_t != nil {
+        debug = debug_t.Value()
+    }
 
-    if prompt == "" {
+    hist_t := ast.GetVar("SH_HIST_FILE", vars)
+    if hist_t != nil {
+        hist = hist_t.Value()
+    }
+
+    prompt_t := ast.GetVar("SHS_SH_PROMPT", vars)
+    if prompt_t != nil {
+        prompt = prompt_t.Value()
+    } else {
         prompt = def_prompt
     }
 
@@ -79,7 +89,7 @@ func main() {
     }
 
     for {
-        setLogLvl()
+        setLogLvl(vars)
         text, err := rl.Readline()
         if err != nil {
             log.Log(log.ERR, "couldnt read user input: " + err.Error(), "repl")