first commit, things are coming together

src/lib.rs

@@ -0,0 +1,144 @@
+use nom::*;
+
+#[derive(Debug, PartialEq)]
+enum TextAttributes {
+    Off          = 0,
+    Bold         = 1,
+    Underscore   = 4,
+    Blink        = 5,
+    ReverseVideo = 7,
+    Concealed    = 8
+}
+
+#[derive(Debug, PartialEq)]
+enum Color {
+    Black   = 30,
+    Red     = 31,
+    Green   = 32,
+    Yellow  = 33,
+    Blue    = 34,
+    Magenta = 35,
+    Cyan    = 36,
+    White   = 37
+}
+
+#[derive(Debug, PartialEq)]
+enum AnsiSequence {
+    CursorPos(u32, u32),
+    CursorUp(u32),
+    CursorDown(u32),
+    CursorForward(u32),
+    CursorBackward(u32),
+    SaveCursorPos(u32),
+    RestoreCursorPos(u32),
+    EraseDisplay,
+    EraseLine,
+    SetGraphicsMode{
+        ta: Option<TextAttributes>,
+        fg: Option<Color>,
+        bg: Option<Color>
+    },
+    SetMode(u8),
+    Resetmode(u8),
+}
+
+named!(
+    parse_int<u32>,
+    map_res!(
+        map_res!(
+            nom::digit,
+            std::str::from_utf8
+        ),
+        |s: &str| s.parse::<u32>()
+    )
+);
+
+named!(
+    cursor_pos<AnsiSequence>,
+    do_parse!(
+        x: parse_int    >>
+        tag!(";")       >>
+        y: parse_int    >>
+        alt!(
+            tag!("H") | 
+            tag!("f")
+        )               >>
+        (AnsiSequence::CursorPos(x, y))
+    )
+);
+
+named!(
+    cursor_up<AnsiSequence>,
+    do_parse!(
+        am: parse_int >>
+        tag!("A")     >>
+        (AnsiSequence::CursorUp(am))
+    )
+);
+
+named!(
+    cursor_down<AnsiSequence>,
+    do_parse!(
+        am: parse_int >>
+        tag!("B")     >>
+        (AnsiSequence::CursorDown(am))
+    )
+);
+
+named!(
+    cursor_forward<AnsiSequence>,
+    do_parse!(
+        am: parse_int >>
+        tag!("C")     >>
+        (AnsiSequence::CursorForward(am))
+    )
+);
+
+named!(
+    cursor_backward<AnsiSequence>,
+    do_parse!(
+        am: parse_int >>
+        tag!("D")     >>
+        (AnsiSequence::CursorBackward(am))
+    )
+);
+
+named!(
+    combined<AnsiSequence>,
+    alt!(
+          cursor_pos
+        | cursor_up
+        | cursor_down
+        | cursor_forward
+        | cursor_backward 
+    )
+);
+
+named!(
+    parse_escape<AnsiSequence>,
+    do_parse!(
+        tag_s!("\\\x27[") >>
+        seq: combined     >>
+        (seq)
+    )
+);
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    
+    #[test]
+    fn test_combined() {
+        let temp = "\\\x27[15;244H";
+        let temp = parse_escape(temp.as_bytes());
+
+        assert!(temp.is_ok());
+        assert_eq!(AnsiSequence::CursorPos(15, 244), temp.unwrap().1);
+
+        let temp = "\\\x27[22D";
+        let temp = parse_escape(temp.as_bytes());
+
+        assert!(temp.is_ok());
+        assert_eq!(AnsiSequence::CursorBackward(22), temp.unwrap().1);
+    }
+}