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package main
import (
"fmt"
"io"
"os"
"strings"
)
func main() {
if len(os.Args) != 3 {
fmt.Fprintf(os.Stderr, "Usage: gbasm [input_file] [output_file]")
os.Exit(1)
}
input_file_name := os.Args[1]
output_file_name := os.Args[2]
input_file, err := os.Open(input_file_name)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while opening input file: %s", err.Error())
os.Exit(1)
}
input, err := io.ReadAll(input_file)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while reading input file: %s", err.Error())
os.Exit(1)
}
lines := strings.Split(string(input), "\n")
result := []byte{}
for _, line := range lines {
next_instruction, err := Instructions.Parse(line)
if err != nil {
fmt.Fprintf(os.Stderr, "%s", err.Error())
os.Exit(1)
}
result = append(result, next_instruction...)
}
output_file, err := os.Create(output_file_name)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while opening output file: %s", err.Error())
os.Exit(1)
}
_, err = output_file.Write(result)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while writing to output file: %s", err.Error())
os.Exit(1)
}
}
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