feat: v0.1.4 opt error processing

src/opt.rs

@@ -4,6 +4,7 @@ use argparse::{ArgumentParser, StoreTrue, Store, List};
 pub struct Options {
     pub version: bool,
     pub verbose: bool,
+    pub ignore_errors: bool,
     pub algorithm: String,
     pub file_name_list: Vec<String>,
     pub blake_len: usize,
@@ -14,6 +15,7 @@ impl Options {
         Options {
             version: false,
             verbose: false,
+            ignore_errors: false,
             algorithm: "SHA256".to_string(),
             file_name_list: Vec::new(),
             blake_len: 0_usize,
@@ -28,6 +30,7 @@ impl Options {
             ap.refer(&mut self.blake_len).add_option(&["-l", "--blake-len"], Store, "Blake2s/b length, 1~32/64");
             ap.refer(&mut self.version).add_option(&["-V", "--version"], StoreTrue, "Print version");
             ap.refer(&mut self.verbose).add_option(&["-v", "--verbose"], StoreTrue, "Verbose");
+            ap.refer(&mut self.ignore_errors).add_option(&["--ignore-errors"], StoreTrue, "Ignore errors");
             ap.refer(&mut self.file_name_list).add_argument("File names", List, "File names to be digested");
             ap.parse_args_or_exit();
         }