/
main.go
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/
main.go
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package main
import (
"fmt"
"os"
"bufio"
"github.com/rickbutton/goscheme/scheme"
"github.com/rickbutton/goscheme/lexer"
"github.com/rickbutton/goscheme/parser"
"github.com/rickbutton/goscheme/eval"
"github.com/rickbutton/goscheme/lib"
)
func main() {
if len(os.Args) != 2 {
usage()
}
fileName := os.Args[1]
fi, err := os.Open(fileName)
if err != nil {
fmt.Printf("Error: %s\n", err.Error())
os.Exit(2)
}
r := bufio.NewReader(fi)
l, c := lexer.Lex(r)
libs := lib.Definitions()
global := scheme.NewGlobalWithData(libs)
for !l.Done() {
expr, err := parser.Parse(c)
if err != nil {
fmt.Printf("%s\n", err.Error())
}
_, err = eval.Eval(global, expr)
if err != nil {
fmt.Printf("%s\n", err.Error())
}
}
}
func usage() {
fmt.Printf("usage: %s [file.scm]\n", os.Args[0])
os.Exit(2)
}