1 files changed, 68 insertions, 0 deletions
diff --git a/axisc/src/reader.rs b/axisc/src/reader.rs
new file mode 100644
index 0000000..1764f2b
--- /dev/null
+++ b/axisc/src/reader.rs
@@ -0,0 +1,68 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+use std::iter::Peekable;
+use std::path::PathBuf;
+use std::process::exit;
+use std::str::Chars;
+
+pub fn read_file(source: &PathBuf) -> String {
+    let file = File::open(&source).unwrap_or_else(|e| {
+        eprintln!("axisc: Unable to open {:?} for reading: {}", &source, e);
+        exit(1)
+    });
+    let reader = BufReader::new(file);
+    let mut string = String::from("");
+
+    for line in reader.lines() {
+        let mut line = line.unwrap();
+
+        if let Some(char_index) = line.find("--") {
+            line.truncate(char_index);
+        }
+
+        if !line.is_empty() {
+            string.push_str(line.trim());
+            string.push('\n');
+        }
+    }
+
+    string
+}
+
+pub struct TokenScanner<'a> {
+    chars: Peekable<Chars<'a>>
+}
+
+impl <'a> TokenScanner<'a> {
+    pub fn advance(&mut self, num: usize) -> Option<char> {
+        self.chars.nth(num)
+    }
+
+    pub fn peek(&mut self) -> Option<&char> {
+        self.chars.peek()
+    }
+
+    pub fn advance_word(&mut self) -> String {
+        let mut word = String::new();
+
+        while let Some(char) = self.chars.next() {
+            if char.is_ascii_whitespace() {
+                break;
+            }
+
+            word.push(char);
+        }
+
+        word
+    }
+
+    pub fn peek_word(&mut self) -> String {
+        todo!(":(")
+    }
+
+    pub fn from_string(string: &'a str) -> Self {
+        Self {
+            chars: string.chars().peekable()
+        }
+    }
+}