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+ Multiline	01 00 00 00
+ 				00 00 00 00
+ 			00 01 00 00 00 00
+ 				04 00 00 00
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+					30 7C FE 98 A3 74 16 C0 40 BD 4B 1E 0C 38 EB 3F
+					40 50 53 21 DA F0 1D C0 70 2D 12 D4 54 08 22 C0
+					48 50 53 21 DA F0 2D C0 A0 A6 42 B4 E1 33 32 C0
+
+Curve 		01 00 00 00
+				00 00 00 00
+			00 03 00 00 00 00
+				04 00 00 00
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+					28 0F 06 9C 71 2D 39 C0 30 79 30 E0 8C EB 2C C0
+					28 0F 06 9C 71 2D 29 C0 A0 A6 42 B4 E1 33 32 C0
+Multicurve	02 00 00 00
+				00 00 00 00
+			00 03 00 00 00 00
+				04 00 00 00
+					EC 2B AB 77 C9 43 35 C0 5C BD 4B 1E 0C 38 2B 40
+					9C D8 89 9D D8 89 3A C0 9C 71 2D 12 D4 54 20 40
+					AC 45 82 9A 0A D1 37 C0 4C 50 53 21 DA F0 2D C0
+					78 97 3C 18 70 C6 25 C0 58 56 EF 92 07 03 31 C0
+			00 03 00 00 00 00
+				04 00 00 00
+					78 97 3C 18 70 C6 25 C0 58 56 EF 92 07 03 31 C0
+					A0 71 2D 12 D4 54 00 40 8A 04 35 15 A2 0D 33 C0
+					C0 B2 7A 97 3C 18 25 40 88 6B 91 A0 A6 42 2D C0
+					58 BD 4B 1E 0C 38 2B 40 88 6B 91 A0 A6 42 1D C0
+Multicurve2 03 00 00 00
+				00 00 00 00
+			00 03 00 00 00 00
+				04 00 00 00
+					10 6D F8 FC 31 07 3A C0 E4 F3 C7 1C A5 DB 29 40
+					B2 7A 97 3C 18 B0 39 C0 60 BD 4B 1E 0C 38 0B 40
+					3C E6 28 DD BE 32 3A C0 B4 48 50 53 21 5A 31 C0
+					88 6B 91 A0 A6 42 2D C0 12 3B B1 13 3B B1 31 C0
+			00 03 00 00 00 00
+				04 00 00 00
+					88 6B 91 A0 A6 42 2D C0 12 3B B1 13 3B B1 31 C0
+					60 2A 44 1B 3E 7F 08 C0 70 2D 12 D4 54 08 32 C0
+					FC 63 8E D2 ED AB 30 40 F4 95 D5 BB E4 01 39 C0
+					8C 04 35 15 A2 0D 33 40 2C 79 30 E0 8C EB 2C C0
+			00 03 00 00 00 00
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+					8C 04 35 15 A2 0D 33 40 2C 79 30 E0 8C EB 2C C0
+					1C A5 DB 57 56 6F 35 40 C0 19 D7 22 41 4D 0F C0
+					A0 A6 42 B4 E1 33 32 40 78 6B 91 A0 A6 42 1D 40
+					F0 60 C0 19 D7 22 27 40 9A 71 2D 12 D4 54 30 40
+Rectangle	08 00 00 00
+				10 00 00 00
+					B2 7A 97 3C 18 B0 39 C0 2C 12 D4 54 88 B6 22 40
+				10 00 00 00
+					40 50 53 21 DA F0 FD 3F F8 63 8E D2 ED AB 20 C0
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
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+Circle		06 00 00 00
+				10 00 00 00
+					00 35 15 A2 0D 9F 1E C0 80 04 35 15 A2 0D F3 3F
+				08 00 00 00
+					7F 43 DA 09 B8 95 31 40
+				08 00 00 00
+					E0 86 44 54 FB 21 F9 3F
+				04 00 00 00
+					01 00 00 00
+				04 00 00 00
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+				48 00 00 00
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+Ellipse		08 00 00 00
+				04 00 00 00
+					00 00 00 00
+				10 00 00 00
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+				10 00 00 00
+					5C 8B 04 35 15 E2 32 40 7C 97 3C 18 70 C6 25 40
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					EA 2E 44 54 FB 21 19 40
+				04 00 00 00
+					00 00 00 00
+				48 00 00 00
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+				04 00 00 00
+					00 00 00 00
+Polygon		0A 00 00 00
+				04 00 00 00
+					00 00 00 00
+				10 00 00 00
+					60 C0 19 D7 22 C1 34 C0 94 6E 5F 59 BD CB 26 C0
+				10 00 00 00
+					00 CE B8 16 09 6A 04 40 EE 92 07 03 CE 78 3F C0
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				08 00 00 00
+					00 00 00 00 00 00 00 00
+				04 00 00 00
+					06 00 00 00
+				04 00 00 00
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+				48 00 00 00
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imhex.txt

@@ -0,0 +1,370 @@
+#pragma endian little
+#pragma pattern_limit 256000
+
+#include <std/sys.pat>
+#include <std/mem.pat>
+#include <std/io.pat>
+#include <std/core.pat>
+
+struct RGBA8 {
+  u8 red;
+  u8 green;
+  u8 blue;
+  u8 alpha;
+} [[static, color(std::format("{:02X}{:02X}{:02X}", red, green, blue))]];
+
+struct Point {
+    double x;
+    double y;
+};
+
+struct MultiLine {
+    u32 points;
+    Point point[points];
+};
+
+enum WobbleType : u32 {
+    Spiral = 0,
+    Sinusoidal = 1,
+    Ellipse = 2,
+    Vert_8 = 3,
+    Hoti_8 = 4,
+};
+
+// Field of a custom defined type
+struct FieldOf<T> {
+    u32 length;
+    T value;
+    
+    std::assert(length == sizeof(value), "Size mismatch");
+} [[sealed, format("format_field_of")]];
+
+fn format_field_of(FieldOf<u8> f) {
+    return f.value;
+};
+
+// Field of generic types
+struct Field {
+    u32 length;
+    
+    match (length) {
+        (4): u32 value;
+        (8): double value;
+        (2): u16 value; // ??
+        (16): Point value; // ??
+        (1): u32 value; // ??
+        (_): {
+            std::warning(std::format("Unknown length tag: {} at 0x{:02X}", length, $));
+            u8 value[length];
+        }
+    }
+} [[sealed, format("format_field")]];
+
+fn format_field(Field f) {
+    return f.value;
+};
+
+// Variable length field of a fixed type.
+struct String {
+    u32 length;
+    char16 value[length / sizeof(char16)];
+} [[sealed, format("format_string")]];
+
+fn format_string(String s) {
+    return s.value;
+};
+
+struct Header {
+    char16 magic[0x8];
+    u8 unknown[0x338];
+};
+
+struct Pen {
+    u32 num_fields; // Number of fields in this struct (236)
+    Field color;
+    String name;
+    Field disabled;
+    Field use_default_param;
+    Field loop_count;
+    Field speed; // Changes with wobble relative speed
+    Field power;
+    Field frequency;
+    Field unknown_1[1];
+    Field start_tc;
+    Field end_tc;
+    Field polygon_tc;
+    Field jump_speed;
+    Field unknown_2[10];
+    Field laser_off_tc;
+    Field wave; // Only available if continue_mode is false
+    Field unknown_3[1];
+    Field wobble_enable;
+    Field wobble_diameter;
+    Field wobble_distance;
+    Field unknown_4[8];
+    Field min_jump_tc;
+    Field max_jump_tc;
+    Field jump_limit;
+    Field unknown_5[2];
+    Field frequency2;
+    Field unknown_6[152];
+    FieldOf<WobbleType> wobble_type;
+    Field continue_mode;
+    Field unknown_7[12];
+    Field wobble_diameter2; // Only with wobble type ellipse
+    Field unknown_8[26];
+};
+
+bitfield ObjectFlags {
+    disabled : 1;
+    aspect_ratio_unlocked : 1; // ??
+    padding : 14;
+};
+
+enum ObjectType: u32 {
+    Curve = 1,
+    Point = 2,
+    Rectangle = 3,
+    Circle = 4,
+    Ellipse = 5,
+    Polygon = 6,
+    Hatch = 32,
+};
+
+struct ObjCommon {
+    u32 num_fields; // Number of fields in this struct (17)
+    Field pen;
+    Field type; // Seems to always be same value as object type
+    FieldOf<ObjectFlags>;
+    String name;
+    Field count;
+    Field unknown_2[1];
+    Field io_control_enable_mask;
+    Field io_control_disable_mask;
+    Field unknown_3[5];
+    FieldOf<Point> origin;
+    Field z;
+    Field a;
+    Field unknown_4[1];
+};
+
+enum LineType : u16 {
+    Point = 0x0001,
+    Line = 0x0100,
+    Bezier = 0x0300,
+};
+
+struct LineEntry {
+    LineType type;
+    u32; // Zeros
+    
+    match (type) {
+        (LineType::Point): Point;
+        (LineType::Line): {
+            u32 count;
+            Point points[count];
+        }
+        (LineType::Bezier): {
+            u32 count;
+            Point points[count];
+        }
+        (_): std::error(std::format("Unknown line type: 0x{:02X} at 0x{:02X}", u32(type), $));
+    }
+};
+
+struct LineSet : ObjCommon {
+    u32 count;
+    u32; // Zeros
+    
+    LineEntry entries[count];
+};
+
+struct ClosedSet : ObjCommon {
+    u32 count;
+    Field entries[count];
+};
+
+struct Rectangle : ObjCommon {
+    u32 num_fields; // Number of fields in this struct (8)
+    FieldOf<Point> corner_a;
+    FieldOf<Point> corner_b;
+    Field round_bottom_left;
+    Field round_bottom_right;
+    Field round_top_right;
+    Field round_top_left;
+    Field unknown[2];
+};
+
+struct Circle : ObjCommon {
+    u32 num_fields; // Number of fields in this struct (6)
+    FieldOf<Point> origin;
+    Field radius;
+    Field start_angle; // Radians
+    Field clockwise;
+    Field unknown[2];
+};
+
+struct Ellipse : ObjCommon {
+    u32 num_fields; // Number of fields in this struct (8)
+    Field clockwise;
+    FieldOf<Point> corner_a;
+    FieldOf<Point> corner_b;
+    Field start_angle; // Radians
+    Field end_angle; // Radians
+    Field unknown[2];
+    Field open_curve;
+};
+
+struct Polygon : ObjCommon {
+    u32 num_fields; // Number of fields in this struct (10)
+    Field invert_shape;
+    FieldOf<Point> corner_a;
+    FieldOf<Point> corner_b;
+    Field offset_cx; // Moves (intial) sharper corner
+    Field offset_cy; // Moves (initial)sharper corner
+    Field offset_dx;
+    Field offset_dy;
+    Field edges;
+    Field unknown_3[2];
+};
+
+struct HatchLine {
+    u32 num_lines;
+    LineSet line[num_lines];
+};
+
+using Object;
+
+bitfield HatchFlags {
+    padding : 1;
+    follow_edge_once : 1;
+    padding : 4;
+    auto_rotate_hatch_angle : 1;
+    average_distribut_line : 1;
+    padding : 2;
+    cross_hatch : 1;
+    padding : 21;
+};
+
+struct HatchSettings {
+    u32 num_fields; // 46
+    Field flags; // 1 = mark contour
+    Field unknown_1[1];
+    Field pen;
+    FieldOf<HatchFlags> flags_2;
+    Field edge_offset;
+    Field line_spacing;
+    Field start_offset;
+    Field end_offset;
+    Field angle;
+    Field unknown_4[9];
+    Field auto_rotate_angle;
+    Field unknown_7[10];
+    Field line_reduction;
+    Field unknown_3[2];
+    Field num_loops;
+    Field unknown_5[2];
+    Field loop_distance;
+    Field unknown_6[5];
+    Field contour_first;
+    Field count;
+    Field unknown_2[3];
+};
+
+struct HatchSettings2 {
+    u32 num_fields; // 15
+    Field count;
+    Field unknown_1[1];
+    Field pen;
+    FieldOf<HatchFlags> flags_2; // Same as HatchSettings.flags_2
+    Field edge_offset;
+    Field line_spacing;
+    Field start_offset;
+    Field end_offset;
+    Field angle;
+    Field auto_rotate_angle;
+    Field line_reduction;
+    Field loop_distance;
+    Field num_loops;
+    Field unknown_5[2];
+};
+
+struct Hatch : ObjCommon {
+    u32; // 1
+    Object outline;
+    HatchSettings settings;
+    HatchSettings2 settings_2;
+    u32 count_5; //17
+    Field unknown_5[count_5];
+    u32; // 1
+    u32; // 16
+    u32 count_6; // 17
+    Field pen;
+    Field unknown_6[2];
+    String hatch_name;
+    Field unknown_7[count_6 - 4];
+    //Field unknown_6[count_6];
+    
+    u32 num_lines;
+    HatchLine lines[num_lines];    
+};
+
+struct Object {
+    ObjectType type;
+    
+    match (type) {
+        (ObjectType::Curve): LineSet;
+        (ObjectType::Point): LineSet;
+        (ObjectType::Rectangle): Rectangle;
+        (ObjectType::Circle): Circle;
+        (ObjectType::Ellipse): Ellipse;
+        (ObjectType::Polygon): Polygon;
+        (ObjectType::Hatch): Hatch;
+        (_): std::error(std::format("Unknown object type: 0x{:02X} at 0x{:02X}", u32(type), $));
+    }
+};
+
+struct Layer {
+    u32 num_fields_1; // Number of fields before object list (17)
+    Field unknown_1[3];
+    String name;
+    Field count;
+    Field unknown_2[1];
+    Field input_signal_wait_enable_mask;
+    Field input_signal_wait_disable_mask;
+    Field unknown_3[9];
+    u32 object_count;
+    Object objects[object_count];
+    u32 num_fields_2; // Number of fields to footer (151)
+    Field unknown_4[54];
+    Field output_signal_start_enable_mask;
+    Field output_signal_start_disable_mask;
+    Field output_signal_end_enable_mask;
+    Field output_signal_end_disable_mask;
+    Field unknown_5[9];
+    Field fixture_offset;
+    Field unknown_6[64];
+    Field output_signal_start_delay;
+    Field output_signal_end_delay;
+    Field input_signal_wait_enable;
+    Field unknown_7[2];
+    Field output_signal_start_pulse;
+    Field output_signal_end_pulse;
+    Field unknown_8[12];
+    u32 footer;
+};
+
+struct Layers {
+    u32 count;
+    Layer layer[count];
+};
+
+struct File {
+    Header header;
+    RGBA8 thumbnail[40000]; // 200x200?
+    padding[16];
+    Pen pens[256];
+    Layers;
+};
+
+File file @ 0x0;

src/ezcad/basic_field.rs

@@ -0,0 +1,49 @@
+use binrw::{BinRead, BinWrite};
+
+#[derive(BinRead, BinWrite, PartialEq, Debug)]
+enum BasicField {
+    #[brw(magic(2u32))]
+    U16(u16),
+    #[brw(magic(4u32))]
+    U32(u32),
+    #[brw(magic(8u32))]
+    Double(f64),
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::io::Cursor;
+
+    #[test]
+    fn field_u32_be() {
+        let encoded: Vec<u8> = vec![0x00, 0x00, 0x00, 0x04, 0x0A, 0x0B, 0x0C, 0x0D];
+        let decoded: u32 = 0x0A0B0C0D;
+
+        let mut stream: Cursor<Vec<u8>> = Cursor::new(encoded.clone());
+        assert_eq!(
+            BasicField::read_be(&mut stream).unwrap(),
+            BasicField::U32(decoded)
+        );
+
+        let mut buffer: Cursor<Vec<u8>> = Cursor::new(vec![]);
+        BasicField::U32(decoded).write_be(&mut buffer).unwrap();
+        assert_eq!(buffer.into_inner(), encoded);
+    }
+
+    #[test]
+    fn field_u32_le() {
+        let encoded: Vec<u8> = vec![0x04, 0x00, 0x00, 0x00, 0x0D, 0x0C, 0x0B, 0x0A];
+        let decoded: u32 = 0x0A0B0C0D;
+
+        let mut stream: Cursor<Vec<u8>> = Cursor::new(encoded.clone());
+        assert_eq!(
+            BasicField::read_le(&mut stream).unwrap(),
+            BasicField::U32(decoded)
+        );
+
+        let mut buffer: Cursor<Vec<u8>> = Cursor::new(vec![]);
+        BasicField::U32(decoded).write_le(&mut buffer).unwrap();
+        assert_eq!(buffer.into_inner(), encoded);
+    }
+}

src/ezcad/field_of.rs

@@ -0,0 +1,75 @@
+use binrw::{binread, binwrite, BinRead, BinWrite};
+use std::mem::size_of;
+
+#[binwrite]
+#[binread]
+#[derive(Debug, PartialEq)]
+struct FieldOf<T>
+where
+    T: for<'a> BinRead<Args<'a> = ()> + Default,
+    T: for<'a> BinWrite<Args<'a> = ()> + Default,
+{
+    #[br(temp, assert(size == size_of::<T>().try_into().unwrap()))]
+    #[bw(try_calc(u32::try_from(size_of::<T>())))]
+    size: u32,
+    pub value: T,
+}
+
+#[cfg(test)]
+mod tests {
+    use std::io::Cursor;
+
+    use super::*;
+
+    #[test]
+    fn field_of_be() {
+        #[derive(BinRead, BinWrite, Debug, PartialEq, Default)]
+        struct Test {
+            a: u32,
+            b: u32,
+        }
+
+        let decoded: FieldOf<Test> = FieldOf {
+            value: Test {
+                a: 0x0A0B0C0D,
+                b: 0x01020304,
+            },
+        };
+        let encoded: Vec<u8> = vec![
+            0x00, 0x00, 0x00, 0x08, 0x0A, 0x0B, 0x0C, 0x0D, 0x01, 0x02, 0x03, 0x04,
+        ];
+
+        let mut stream: Cursor<Vec<u8>> = Cursor::new(encoded.clone());
+        assert_eq!(FieldOf::<Test>::read_be(&mut stream).unwrap(), decoded);
+
+        let mut buffer: Cursor<Vec<u8>> = Cursor::new(vec![]);
+        decoded.write_be(&mut buffer).unwrap();
+        assert_eq!(buffer.into_inner(), encoded);
+    }
+
+    #[test]
+    fn field_of_le() {
+        #[derive(BinRead, BinWrite, Debug, PartialEq, Default)]
+        struct Test {
+            a: u32,
+            b: u32,
+        }
+
+        let decoded: FieldOf<Test> = FieldOf {
+            value: Test {
+                a: 0x0A0B0C0D,
+                b: 0x01020304,
+            },
+        };
+        let encoded: Vec<u8> = vec![
+            0x08, 0x00, 0x00, 0x00, 0x0D, 0x0C, 0x0B, 0x0A, 0x04, 0x03, 0x02, 0x01,
+        ];
+
+        let mut stream: Cursor<Vec<u8>> = Cursor::new(encoded.clone());
+        assert_eq!(FieldOf::<Test>::read_le(&mut stream).unwrap(), decoded);
+
+        let mut buffer: Cursor<Vec<u8>> = Cursor::new(vec![]);
+        decoded.write_le(&mut buffer).unwrap();
+        assert_eq!(buffer.into_inner(), encoded);
+    }
+}

src/ezcad/mod.rs

@@ -0,0 +1,2 @@
+pub mod basic_field;
+pub mod field_of;

src/main.rs

@@ -0,0 +1,39 @@
+use std::{path::PathBuf, fs::read};
+
+use clap::Parser;
+
+mod ezcad;
+
+#[derive(Debug, Parser)]
+struct Cli {
+    /// Input file to parse
+    #[arg(short, long)]
+    input: PathBuf,
+
+    /// Output file to write to
+    #[arg(short, long)]
+    output: PathBuf,
+
+    /// Configuration file
+    #[arg(short, long)]
+    config: PathBuf,
+
+    #[command(flatten)]
+    verbose: clap_verbosity_flag::Verbosity,
+}
+
+fn main() {
+    env_logger::builder()
+    .format_timestamp(None)
+    .filter_level(log::LevelFilter::Info)
+    .init();
+
+    let args: Cli = Cli::parse();
+
+    let _input = read(args.input).unwrap();
+    let _confing = read(args.config).unwrap();
+
+
+    println!("Hello, world!");
+    
+}