feat(exif): Add standard Exif IFD0 tags

Cargo.toml

@@ -1,7 +1,4 @@
 [package]
-name = "exif-io"
-version = "0.1.0"
-edition = "2021"
 authors = ["Avinash Maddikonda <svasssakavi@gmail.com>"]
 categories = [
     "data-structures",
@@ -11,11 +8,15 @@ categories = [
     "multimedia::images",
 ]
 description = "A Rust library crate to read and write image EXIF data."
+edition = "2021"
 homepage = "https://docs.rs/crate/exif-io"
 keywords = ["exif", "image", "metadata", "read", "write"]
 license = "MIT"
+name = "exif-io"
 repository = "https://github.com/SFM61319/exif-io"
+version = "0.1.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+fraction = { version = "0.15.1", default-features = false }

cspell.json

@@ -40,16 +40,49 @@
   "validateDirectives": true,
   "version": "0.2",
   "words": [
+    "Appn",
+    "Ascii",
+    "BCPS",
+    "CFA",
+    "CIE",
     "CVD",
+    "demosaiced",
+    "DNG",
+    "DSC",
+    "EOI",
+    "EV",
     "fn",
     "FOSS",
     "IEC",
+    "IFD",
     "io",
+    "Iop",
+    "IPTC",
+    "JPEGDC",
+    "JPEGQ",
+    "JXL",
+    "Linearization",
+    "Mpf",
     "msys",
+    "NAA",
+    "OECF",
+    "OPI",
+    "Opto",
     "posix",
+    "repr",
+    "SFR",
+    "SMPTE",
+    "SOI",
     "tada",
+    "Thresholding",
+    "TIFFEP",
+    "UCS",
     "UI",
+    "UTF",
+    "Vec",
     "WEBP",
-    "XY"
+    "XMP",
+    "XY",
+    "XYZ"
   ]
 }

src/lib.rs

@@ -1,14 +1,4 @@
-pub fn add(left: usize, right: usize) -> usize {
-    left + right
-}
+//! Exif IO is a Rust library crate to read and write image Exif data.
 
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}
+pub mod tag;
+pub mod types;

src/tag.rs

@@ -0,0 +1,28 @@
+//! [Exif tags](https://exiv2.org/tags.html) as defined in the
+//! [Exif 2.3 standard](https://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf).
+
+mod image;
+pub use image::Image;
+
+/// [Exif tags](https://exiv2.org/tags.html) as defined in the
+/// [Exif 2.3 standard](https://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf).
+#[derive(Clone, Debug, PartialEq)]
+pub enum Tag {
+    /// Exif Image IFD0 tag.
+    Image(Image),
+
+    /// Exif Photo IFD0 tag.
+    Photo,
+
+    /// Exif Interoperability IFD0 tag.
+    Iop,
+
+    /// Exif GPS Info IFD0 tag.
+    GPSInfo,
+
+    /// Exif MPF Info IFD0 tag.
+    MpfInfo,
+
+    /// Exif Thumbnail IFD1 tag.
+    Thumbnail,
+}