Refactor display utilities

17 files changed, 963 insertions, 499 deletions

diff --git a/utils/src/display.rs b/utils/src/display.rs
index fc94d90..a9c48e8 100644
--- a/utils/src/display.rs
+++ b/utils/src/display.rs
@@ -1,488 +1,2 @@
-use colored::*;
-use just_enough_vcs::lib::data::sheet::SheetMappingMetadata;
-use std::{
-    collections::{BTreeMap, HashMap, VecDeque},
-    path::PathBuf,
-};
-
-pub struct SimpleTable {
-    items: Vec<String>,
-    line: Vec<Vec<String>>,
-    length: Vec<usize>,
-    padding: usize,
-}
-
-impl SimpleTable {
-    /// Create a new Table
-    pub fn new(items: Vec<impl Into<String>>) -> Self {
-        Self::new_with_padding(items, 2)
-    }
-
-    /// Create a new Table with padding
-    pub fn new_with_padding(items: Vec<impl Into<String>>, padding: usize) -> Self {
-        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
-        let mut length = Vec::with_capacity(items.len());
-
-        for item in &items {
-            length.push(display_width(item));
-        }
-
-        SimpleTable {
-            items,
-            padding,
-            line: Vec::new(),
-            length,
-        }
-    }
-
-    /// Push a new row of items to the table
-    pub fn push_item(&mut self, items: Vec<impl Into<String>>) {
-        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
-
-        let mut processed_items = Vec::with_capacity(self.items.len());
-
-        for i in 0..self.items.len() {
-            if i < items.len() {
-                processed_items.push(items[i].clone());
-            } else {
-                processed_items.push(String::new());
-            }
-        }
-
-        for (i, d) in processed_items.iter().enumerate() {
-            let d_len = display_width(d);
-            if d_len > self.length[i] {
-                self.length[i] = d_len;
-            }
-        }
-
-        self.line.push(processed_items);
-    }
-
-    /// Insert a new row of items at the specified index
-    pub fn insert_item(&mut self, index: usize, items: Vec<impl Into<String>>) {
-        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
-
-        let mut processed_items = Vec::with_capacity(self.items.len());
-
-        for i in 0..self.items.len() {
-            if i < items.len() {
-                processed_items.push(items[i].clone());
-            } else {
-                processed_items.push(String::new());
-            }
-        }
-
-        for (i, d) in processed_items.iter().enumerate() {
-            let d_len = display_width(d);
-            if d_len > self.length[i] {
-                self.length[i] = d_len;
-            }
-        }
-
-        self.line.insert(index, processed_items);
-    }
-
-    /// Get the current maximum column widths
-    fn get_column_widths(&self) -> &[usize] {
-        &self.length
-    }
-}
-
-impl std::fmt::Display for SimpleTable {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let column_widths = self.get_column_widths();
-
-        // Build the header row
-        let header: Vec<String> = self
-            .items
-            .iter()
-            .enumerate()
-            .map(|(i, item)| {
-                let target_width = column_widths[i] + self.padding;
-                let current_width = display_width(item);
-                let space_count = target_width - current_width;
-                let space = " ".repeat(space_count);
-                let result = format!("{}{}", item, space);
-                result
-            })
-            .collect();
-        writeln!(f, "{}", header.join(""))?;
-
-        // Build each data row
-        for row in &self.line {
-            let formatted_row: Vec<String> = row
-                .iter()
-                .enumerate()
-                .map(|(i, cell)| {
-                    let target_width = column_widths[i] + self.padding;
-                    let current_width = display_width(cell);
-                    let space_count = target_width - current_width;
-                    let spaces = " ".repeat(space_count);
-                    let result = format!("{}{}", cell, spaces);
-                    result
-                })
-                .collect();
-            writeln!(f, "{}", formatted_row.join(""))?;
-        }
-
-        Ok(())
-    }
-}
-
-pub fn display_width(s: &str) -> usize {
-    // Filter out ANSI escape sequences before calculating width
-    let filtered_bytes = strip_ansi_escapes::strip(s);
-    let filtered_str = match std::str::from_utf8(&filtered_bytes) {
-        Ok(s) => s,
-        Err(_) => s, // Fallback to original string if UTF-8 conversion fails
-    };
-
-    let mut width = 0;
-    for c in filtered_str.chars() {
-        if c.is_ascii() {
-            width += 1;
-        } else {
-            width += 2;
-        }
-    }
-    width
-}
-
-/// Convert byte size to a human-readable string format
-///
-/// Automatically selects the appropriate unit (B, KB, MB, GB, TB) based on the byte size
-/// and formats it as a string with two decimal places
-pub fn size_str(total_size: usize) -> String {
-    if total_size < 1024 {
-        format!("{} B", total_size)
-    } else if total_size < 1024 * 1024 {
-        format!("{:.2} KB", total_size as f64 / 1024.0)
-    } else if total_size < 1024 * 1024 * 1024 {
-        format!("{:.2} MB", total_size as f64 / (1024.0 * 1024.0))
-    } else if total_size < 1024 * 1024 * 1024 * 1024 {
-        format!("{:.2} GB", total_size as f64 / (1024.0 * 1024.0 * 1024.0))
-    } else {
-        format!(
-            "{:.2} TB",
-            total_size as f64 / (1024.0 * 1024.0 * 1024.0 * 1024.0)
-        )
-    }
-}
-
-// Convert the Markdown formatted text into a format supported by the command line
-pub fn md(text: impl AsRef<str>) -> String {
-    let text = text.as_ref().trim();
-    let mut result = String::new();
-    let mut color_stack: VecDeque<String> = VecDeque::new();
-
-    let mut i = 0;
-    let chars: Vec<char> = text.chars().collect();
-
-    while i < chars.len() {
-        // Check for escape character \
-        if chars[i] == '\\' && i + 1 < chars.len() {
-            let escaped_char = chars[i + 1];
-            // Only escape specific characters
-            if matches!(escaped_char, '*' | '<' | '>' | '`') {
-                let mut escaped_text = escaped_char.to_string();
-
-                // Apply current color stack
-                for color in color_stack.iter().rev() {
-                    escaped_text = apply_color(&escaped_text, color);
-                }
-
-                result.push_str(&escaped_text);
-                i += 2;
-                continue;
-            }
-        }
-
-        // Check for color tag start [[color]]
-        if i + 1 < chars.len() && chars[i] == '[' && chars[i + 1] == '[' {
-            let mut j = i + 2;
-            while j < chars.len()
-                && !(chars[j] == ']' && j + 1 < chars.len() && chars[j + 1] == ']')
-            {
-                j += 1;
-            }
-
-            if j + 1 < chars.len() {
-                let tag_content: String = chars[i + 2..j].iter().collect();
-
-                // Check if it's a closing tag [[/]]
-                if tag_content == "/" {
-                    color_stack.pop_back();
-                    i = j + 2;
-                    continue;
-                }
-
-                // It's a color tag
-                color_stack.push_back(tag_content.clone());
-                i = j + 2;
-                continue;
-            }
-        }
-
-        // Check for bold **text**
-        if i + 1 < chars.len() && chars[i] == '*' && chars[i + 1] == '*' {
-            let mut j = i + 2;
-            while j + 1 < chars.len() && !(chars[j] == '*' && chars[j + 1] == '*') {
-                j += 1;
-            }
-
-            if j + 1 < chars.len() {
-                let bold_text: String = chars[i + 2..j].iter().collect();
-                let mut formatted_text = bold_text.bold().to_string();
-
-                // Apply current color stack
-                for color in color_stack.iter().rev() {
-                    formatted_text = apply_color(&formatted_text, color);
-                }
-
-                result.push_str(&formatted_text);
-                i = j + 2;
-                continue;
-            }
-        }
-
-        // Check for italic *text*
-        if chars[i] == '*' {
-            let mut j = i + 1;
-            while j < chars.len() && chars[j] != '*' {
-                j += 1;
-            }
-
-            if j < chars.len() {
-                let italic_text: String = chars[i + 1..j].iter().collect();
-                let mut formatted_text = italic_text.italic().to_string();
-
-                // Apply current color stack
-                for color in color_stack.iter().rev() {
-                    formatted_text = apply_color(&formatted_text, color);
-                }
-
-                result.push_str(&formatted_text);
-                i = j + 1;
-                continue;
-            }
-        }
-
-        // Check for angle-bracketed content <text>
-        if chars[i] == '<' {
-            let mut j = i + 1;
-            while j < chars.len() && chars[j] != '>' {
-                j += 1;
-            }
-
-            if j < chars.len() {
-                // Include the angle brackets in the output
-                let angle_text: String = chars[i..=j].iter().collect();
-                let mut formatted_text = angle_text.cyan().to_string();
-
-                // Apply current color stack
-                for color in color_stack.iter().rev() {
-                    formatted_text = apply_color(&formatted_text, color);
-                }
-
-                result.push_str(&formatted_text);
-                i = j + 1;
-                continue;
-            }
-        }
-
-        // Check for inline code `text`
-        if chars[i] == '`' {
-            let mut j = i + 1;
-            while j < chars.len() && chars[j] != '`' {
-                j += 1;
-            }
-
-            if j < chars.len() {
-                // Include the backticks in the output
-                let code_text: String = chars[i..=j].iter().collect();
-                let mut formatted_text = code_text.green().to_string();
-
-                // Apply current color stack
-                for color in color_stack.iter().rev() {
-                    formatted_text = apply_color(&formatted_text, color);
-                }
-
-                result.push_str(&formatted_text);
-                i = j + 1;
-                continue;
-            }
-        }
-
-        // Regular character
-        let mut current_char = chars[i].to_string();
-
-        // Apply current color stack
-        for color in color_stack.iter().rev() {
-            current_char = apply_color(&current_char, color);
-        }
-
-        result.push_str(&current_char);
-        i += 1;
-    }
-
-    result
-}
-
-// Helper function to apply color to text
-fn apply_color(text: impl AsRef<str>, color_name: impl AsRef<str>) -> String {
-    let text = text.as_ref();
-    let color_name = color_name.as_ref();
-    match color_name {
-        // Normal colors
-        "black" => text.black().to_string(),
-        "red" => text.red().to_string(),
-        "green" => text.green().to_string(),
-        "yellow" => text.yellow().to_string(),
-        "blue" => text.blue().to_string(),
-        "magenta" => text.magenta().to_string(),
-        "cyan" => text.cyan().to_string(),
-        "white" => text.white().to_string(),
-        "bright_black" => text.bright_black().to_string(),
-        "bright_red" => text.bright_red().to_string(),
-        "bright_green" => text.bright_green().to_string(),
-        "bright_yellow" => text.bright_yellow().to_string(),
-        "bright_blue" => text.bright_blue().to_string(),
-        "bright_magenta" => text.bright_magenta().to_string(),
-        "bright_cyan" => text.bright_cyan().to_string(),
-        "bright_white" => text.bright_white().to_string(),
-
-        // Short aliases for bright colors
-        "b_black" => text.bright_black().to_string(),
-        "b_red" => text.bright_red().to_string(),
-        "b_green" => text.bright_green().to_string(),
-        "b_yellow" => text.bright_yellow().to_string(),
-        "b_blue" => text.bright_blue().to_string(),
-        "b_magenta" => text.bright_magenta().to_string(),
-        "b_cyan" => text.bright_cyan().to_string(),
-        "b_white" => text.bright_white().to_string(),
-
-        // Gray colors using truecolor
-        "gray" | "grey" => text.truecolor(128, 128, 128).to_string(),
-        "bright_gray" | "bright_grey" => text.truecolor(192, 192, 192).to_string(),
-        "b_gray" | "b_grey" => text.truecolor(192, 192, 192).to_string(),
-
-        // Default to white if color not recognized
-        _ => text.to_string(),
-    }
-}
-
-/// Render a HashMap of PathBuf to SheetMappingMetadata as a tree string.
-pub fn render_share_path_tree(paths: &HashMap<PathBuf, SheetMappingMetadata>) -> String {
-    if paths.is_empty() {
-        return String::new();
-    }
-
-    // Collect all path components into a tree structure
-    let mut root = TreeNode::new("".to_string());
-
-    for (path, metadata) in paths {
-        let mut current = &mut root;
-        let components: Vec<String> = path
-            .components()
-            .filter_map(|comp| match comp {
-                std::path::Component::Normal(s) => s.to_str().map(|s| s.to_string()),
-                _ => None,
-            })
-            .collect();
-
-        for (i, comp) in components.iter().enumerate() {
-            let is_leaf = i == components.len() - 1;
-            let child = current
-                .children
-                .entry(comp.clone())
-                .or_insert_with(|| TreeNode::new(comp.clone()));
-
-            // If this is the leaf node, store the metadata
-            if is_leaf {
-                child.metadata = Some((metadata.id.clone(), metadata.version.clone()));
-            }
-
-            current = child;
-        }
-    }
-
-    // Convert tree to string representation
-    let mut result = String::new();
-    let is_root = true;
-    let prefix = String::new();
-    let last_stack = vec![true]; // Root is always "last"
-
-    add_tree_node_to_string(&root, &mut result, is_root, &prefix, &last_stack);
-
-    result
-}
-
-/// Internal tree node structure for building the path tree
-#[derive(Debug)]
-struct TreeNode {
-    name: String,
-    children: BTreeMap<String, TreeNode>, // Use BTreeMap for sorted output
-    metadata: Option<(String, String)>,   // Store (id, version) for leaf nodes
-}
-
-impl TreeNode {
-    fn new(name: String) -> Self {
-        Self {
-            name,
-            children: BTreeMap::new(),
-            metadata: None,
-        }
-    }
-}
-
-/// Recursively add tree node to string representation
-fn add_tree_node_to_string(
-    node: &TreeNode,
-    result: &mut String,
-    is_root: bool,
-    prefix: &str,
-    last_stack: &[bool],
-) {
-    if !is_root {
-        // Add the tree prefix for this node
-        for &is_last in &last_stack[1..] {
-            if is_last {
-                result.push_str("    ");
-            } else {
-                result.push_str("│   ");
-            }
-        }
-
-        // Add the connector for this node
-        if let Some(&is_last) = last_stack.last() {
-            if is_last {
-                result.push_str("└── ");
-            } else {
-                result.push_str("├── ");
-            }
-        }
-
-        // Add node name
-        result.push_str(&node.name);
-
-        // Add metadata for leaf nodes
-        if let Some((id, version)) = &node.metadata {
-            // Truncate id to first 11 characters
-            let truncated_id = if id.len() > 11 { &id[..11] } else { id };
-            result.push_str(&format!(" [{}|{}]", truncated_id, version));
-        }
-
-        result.push('\n');
-    }
-
-    // Process children
-    let child_count = node.children.len();
-    for (i, (_, child)) in node.children.iter().enumerate() {
-        let is_last_child = i == child_count - 1;
-        let mut new_last_stack = last_stack.to_vec();
-        new_last_stack.push(is_last_child);
-
-        add_tree_node_to_string(child, result, false, prefix, &new_last_stack);
-    }
-}
+pub mod colorful;
+pub mod table;
diff --git a/utils/src/display/colorful.rs b/utils/src/display/colorful.rs
new file mode 100644
index 0000000..7daa6f2
--- /dev/null
+++ b/utils/src/display/colorful.rs
@@ -0,0 +1,275 @@
+use std::collections::VecDeque;
+
+use crossterm::style::Stylize;
+
+/// Trait for adding markdown formatting to strings
+pub trait Colorful {
+    fn colorful(&self) -> String;
+}
+
+impl Colorful for &str {
+    fn colorful(&self) -> String {
+        colorful(self)
+    }
+}
+
+impl Colorful for String {
+    fn colorful(&self) -> String {
+        colorful(self)
+    }
+}
+
+/// Converts a string to colored/formatted text with ANSI escape codes.
+///
+/// Supported syntax:
+/// - Bold: `**text**`
+/// - Italic: `*text*`
+/// - Underline: `_text_`
+/// - Angle-bracketed content: `<text>` (displayed as cyan)
+/// - Inline code: `` `text` `` (displayed as green)
+/// - Color tags: `[[color_name]]` and `[[/]]` to close color
+/// - Escape characters: `\*`, `\<`, `\>`, `` \` ``, `\_` for literal characters
+///
+/// Color tags support the following color names:
+/// Color tags support the following color names:
+///
+/// | Type                  | Color Names                                                                 |
+/// |-----------------------|-----------------------------------------------------------------------------|
+/// | Standard colors       | `black`, `red`, `green`, `yellow`, `blue`, `magenta`, `cyan`, `white`       |
+/// | Bright colors         | `bright_black`                                                              |
+/// |                       | `bright_red`                                                                |
+/// |                       | `bright_green`                                                              |
+/// |                       | `bright_yellow`                                                             |
+/// |                       | `bright_blue`                                                               |
+/// |                       | `bright_magenta`                                                            |
+/// |                       | `bright_cyan`                                                               |
+/// |                       | `bright_white`                                                              |
+/// | Bright color shorthands | `b_black`                                                                   |
+/// |                       | `b_red`                                                                     |
+/// |                       | `b_green`                                                                   |
+/// |                       | `b_yellow`                                                                  |
+/// |                       | `b_blue`                                                                    |
+/// |                       | `b_magenta`                                                                 |
+/// |                       | `b_cyan`                                                                    |
+/// |                       | `b_white`                                                                   |
+/// | Gray colors           | `gray`/`grey`                                                               |
+/// |                       | `bright_gray`/`bright_grey`                                                 |
+/// |                       | `b_gray`/`b_grey`                                                           |
+///
+/// Color tags can be nested, `[[/]]` will close the most recently opened color tag.
+///
+/// # Arguments
+/// * `text` - The text to format, can be any type that implements `AsRef<str>`
+///
+/// # Returns
+/// Returns a `String` containing ANSI escape codes that can display colored/formatted text in ANSI-supported terminals.
+///
+/// # Examples
+/// ```
+/// use testing::fmt::colorful;
+///
+/// let formatted = colorful("Hello **world**!");
+/// println!("{}", formatted);
+///
+/// let colored = colorful("[[red]]Red text[[/]] and normal text");
+/// println!("{}", colored);
+///
+/// let nested = colorful("[[blue]]Blue [[green]]Green[[/]] Blue[[/]] normal");
+/// println!("{}", nested);
+/// ```
+pub fn colorful(text: impl AsRef<str>) -> String {
+    let text = text.as_ref().trim();
+    let mut result = String::new();
+    let mut color_stack: VecDeque<String> = VecDeque::new();
+
+    let chars: Vec<char> = text.chars().collect();
+    let mut i = 0;
+
+    while i < chars.len() {
+        // Check for escape character \
+        if chars[i] == '\\' && i + 1 < chars.len() {
+            let escaped_char = chars[i + 1];
+            // Only escape specific characters
+            if matches!(escaped_char, '*' | '<' | '>' | '`' | '_') {
+                let mut escaped_text = escaped_char.to_string();
+                apply_color_stack(&mut escaped_text, &color_stack);
+                result.push_str(&escaped_text);
+                i += 2;
+                continue;
+            }
+        }
+
+        // Check for color tag start [[color]]
+        if i + 1 < chars.len() && chars[i] == '[' && chars[i + 1] == '[' {
+            if let Some(end) = find_tag_end(&chars, i) {
+                let tag_content: String = chars[i + 2..end].iter().collect();
+
+                // Check if it's a closing tag [[/]]
+                if tag_content == "/" {
+                    color_stack.pop_back();
+                } else {
+                    // It's a color tag
+                    color_stack.push_back(tag_content.clone());
+                }
+                i = end + 2;
+                continue;
+            }
+        }
+
+        // Check for bold **text**
+        if i + 1 < chars.len() && chars[i] == '*' && chars[i + 1] == '*' {
+            if let Some(end) = find_matching(&chars, i + 2, "**") {
+                let bold_text: String = chars[i + 2..end].iter().collect();
+                let mut formatted_text = bold_text.bold().to_string();
+                apply_color_stack(&mut formatted_text, &color_stack);
+                result.push_str(&formatted_text);
+                i = end + 2;
+                continue;
+            }
+        }
+
+        // Check for italic *text*
+        if chars[i] == '*' {
+            if let Some(end) = find_matching(&chars, i + 1, "*") {
+                let italic_text: String = chars[i + 1..end].iter().collect();
+                let mut formatted_text = italic_text.italic().to_string();
+                apply_color_stack(&mut formatted_text, &color_stack);
+                result.push_str(&formatted_text);
+                i = end + 1;
+                continue;
+            }
+        }
+
+        // Check for underline _text_
+        if chars[i] == '_' {
+            if let Some(end) = find_matching(&chars, i + 1, "_") {
+                let underline_text: String = chars[i + 1..end].iter().collect();
+                let mut formatted_text = format!("\x1b[4m{}\x1b[0m", underline_text);
+                apply_color_stack(&mut formatted_text, &color_stack);
+                result.push_str(&formatted_text);
+                i = end + 1;
+                continue;
+            }
+        }
+
+        // Check for angle-bracketed content <text>
+        if chars[i] == '<' {
+            if let Some(end) = find_matching(&chars, i + 1, ">") {
+                // Include the angle brackets in the output
+                let angle_text: String = chars[i..=end].iter().collect();
+                let mut formatted_text = angle_text.cyan().to_string();
+                apply_color_stack(&mut formatted_text, &color_stack);
+                result.push_str(&formatted_text);
+                i = end + 1;
+                continue;
+            }
+        }
+
+        // Check for inline code `text`
+        if chars[i] == '`' {
+            if let Some(end) = find_matching(&chars, i + 1, "`") {
+                // Include the backticks in the output
+                let code_text: String = chars[i..=end].iter().collect();
+                let mut formatted_text = code_text.green().to_string();
+                apply_color_stack(&mut formatted_text, &color_stack);
+                result.push_str(&formatted_text);
+                i = end + 1;
+                continue;
+            }
+        }
+
+        // Regular character
+        let mut current_char = chars[i].to_string();
+        apply_color_stack(&mut current_char, &color_stack);
+        result.push_str(&current_char);
+        i += 1;
+    }
+
+    result
+}
+
+// Helper function to find matching delimiter
+fn find_matching(chars: &[char], start: usize, delimiter: &str) -> Option<usize> {
+    let delim_chars: Vec<char> = delimiter.chars().collect();
+    let delim_len = delim_chars.len();
+
+    let mut j = start;
+    while j < chars.len() {
+        if delim_len == 1 {
+            if chars[j] == delim_chars[0] {
+                return Some(j);
+            }
+        } else if j + 1 < chars.len()
+            && chars[j] == delim_chars[0]
+            && chars[j + 1] == delim_chars[1]
+        {
+            return Some(j);
+        }
+        j += 1;
+    }
+    None
+}
+
+// Helper function to find color tag end
+fn find_tag_end(chars: &[char], start: usize) -> Option<usize> {
+    let mut j = start + 2;
+    while j + 1 < chars.len() {
+        if chars[j] == ']' && chars[j + 1] == ']' {
+            return Some(j);
+        }
+        j += 1;
+    }
+    None
+}
+
+// Helper function to apply color stack to text
+fn apply_color_stack(text: &mut String, color_stack: &VecDeque<String>) {
+    let mut result = text.clone();
+    for color in color_stack.iter().rev() {
+        result = apply_color(&result, color);
+    }
+    *text = result;
+}
+
+// Helper function to apply color to text
+fn apply_color(text: impl AsRef<str>, color_name: impl AsRef<str>) -> String {
+    let text = text.as_ref();
+    let color_name = color_name.as_ref();
+    match color_name {
+        // Normal colors
+        "black" => text.dark_grey().to_string(),
+        "red" => text.dark_red().to_string(),
+        "green" => text.dark_green().to_string(),
+        "yellow" => text.dark_yellow().to_string(),
+        "blue" => text.dark_blue().to_string(),
+        "magenta" => text.dark_magenta().to_string(),
+        "cyan" => text.dark_cyan().to_string(),
+        "white" => text.white().to_string(),
+        "bright_black" => text.black().to_string(),
+        "bright_red" => text.red().to_string(),
+        "bright_green" => text.green().to_string(),
+        "bright_yellow" => text.yellow().to_string(),
+        "bright_blue" => text.blue().to_string(),
+        "bright_magenta" => text.magenta().to_string(),
+        "bright_cyan" => text.cyan().to_string(),
+        "bright_white" => text.white().to_string(),
+
+        // Short aliases for bright colors
+        "b_black" => text.black().to_string(),
+        "b_red" => text.red().to_string(),
+        "b_green" => text.green().to_string(),
+        "b_yellow" => text.yellow().to_string(),
+        "b_blue" => text.blue().to_string(),
+        "b_magenta" => text.magenta().to_string(),
+        "b_cyan" => text.cyan().to_string(),
+        "b_white" => text.white().to_string(),
+
+        // Gray colors using truecolor
+        "gray" | "grey" => text.grey().to_string(),
+        "bright_gray" | "bright_grey" => text.white().to_string(),
+        "b_gray" | "b_grey" => text.white().to_string(),
+
+        // Default to white if color not recognized
+        _ => text.to_string(),
+    }
+}
diff --git a/utils/src/display/table.rs b/utils/src/display/table.rs
new file mode 100644
index 0000000..ae745d8
--- /dev/null
+++ b/utils/src/display/table.rs
@@ -0,0 +1,143 @@
+pub struct Table {
+    items: Vec<String>,
+    line: Vec<Vec<String>>,
+    length: Vec<usize>,
+    padding: usize,
+}
+
+impl Table {
+    /// Create a new Table
+    pub fn new(items: Vec<impl Into<String>>) -> Self {
+        Self::new_with_padding(items, 2)
+    }
+
+    /// Create a new Table with padding
+    pub fn new_with_padding(items: Vec<impl Into<String>>, padding: usize) -> Self {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+        let mut length = Vec::with_capacity(items.len());
+
+        for item in &items {
+            length.push(display_width(item));
+        }
+
+        Table {
+            items,
+            padding,
+            line: Vec::new(),
+            length,
+        }
+    }
+
+    /// Push a new row of items to the table
+    pub fn push_item(&mut self, items: Vec<impl Into<String>>) {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+
+        let mut processed_items = Vec::with_capacity(self.items.len());
+
+        for i in 0..self.items.len() {
+            if i < items.len() {
+                processed_items.push(items[i].clone());
+            } else {
+                processed_items.push(String::new());
+            }
+        }
+
+        for (i, d) in processed_items.iter().enumerate() {
+            let d_len = display_width(d);
+            if d_len > self.length[i] {
+                self.length[i] = d_len;
+            }
+        }
+
+        self.line.push(processed_items);
+    }
+
+    /// Insert a new row of items at the specified index
+    pub fn insert_item(&mut self, index: usize, items: Vec<impl Into<String>>) {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+
+        let mut processed_items = Vec::with_capacity(self.items.len());
+
+        for i in 0..self.items.len() {
+            if i < items.len() {
+                processed_items.push(items[i].clone());
+            } else {
+                processed_items.push(String::new());
+            }
+        }
+
+        for (i, d) in processed_items.iter().enumerate() {
+            let d_len = display_width(d);
+            if d_len > self.length[i] {
+                self.length[i] = d_len;
+            }
+        }
+
+        self.line.insert(index, processed_items);
+    }
+
+    /// Get the current maximum column widths
+    fn get_column_widths(&self) -> &[usize] {
+        &self.length
+    }
+}
+
+impl std::fmt::Display for Table {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let column_widths = self.get_column_widths();
+
+        // Build the header row
+        let header: Vec<String> = self
+            .items
+            .iter()
+            .enumerate()
+            .map(|(i, item)| {
+                let target_width = column_widths[i] + self.padding;
+                let current_width = display_width(item);
+                let space_count = target_width - current_width;
+                let space = " ".repeat(space_count);
+                let result = format!("{}{}", item, space);
+                result
+            })
+            .collect();
+        writeln!(f, "{}", header.join(""))?;
+
+        // Build each data row
+        for row in &self.line {
+            let formatted_row: Vec<String> = row
+                .iter()
+                .enumerate()
+                .map(|(i, cell)| {
+                    let target_width = column_widths[i] + self.padding;
+                    let current_width = display_width(cell);
+                    let space_count = target_width - current_width;
+                    let spaces = " ".repeat(space_count);
+                    let result = format!("{}{}", cell, spaces);
+                    result
+                })
+                .collect();
+            writeln!(f, "{}", formatted_row.join(""))?;
+        }
+
+        Ok(())
+    }
+}
+
+pub fn display_width(s: &str) -> usize {
+    // Filter out ANSI escape sequences before calculating width
+    let filtered_bytes = strip_ansi_escapes::strip(s);
+    let filtered_str = match std::str::from_utf8(&filtered_bytes) {
+        Ok(s) => s,
+        Err(_) => s, // Fallback to original string if UTF-8 conversion fails
+    };
+
+    let mut width = 0;
+    for c in filtered_str.chars() {
+        if c.is_ascii() {
+            width += 1;
+        } else {
+            width += 2;
+        }
+    }
+    width
+}
diff --git a/utils/src/legacy.rs b/utils/src/legacy.rs
new file mode 100644
index 0000000..682c679
--- /dev/null
+++ b/utils/src/legacy.rs
@@ -0,0 +1,9 @@
+pub mod display;
+pub mod env;
+pub mod fs;
+pub mod globber;
+pub mod input;
+pub mod levenshtein_distance;
+pub mod logger;
+pub mod push_version;
+pub mod socket_addr_helper;
diff --git a/utils/src/legacy/display.rs b/utils/src/legacy/display.rs
new file mode 100644
index 0000000..fc94d90
--- /dev/null
+++ b/utils/src/legacy/display.rs
@@ -0,0 +1,488 @@
+use colored::*;
+use just_enough_vcs::lib::data::sheet::SheetMappingMetadata;
+use std::{
+    collections::{BTreeMap, HashMap, VecDeque},
+    path::PathBuf,
+};
+
+pub struct SimpleTable {
+    items: Vec<String>,
+    line: Vec<Vec<String>>,
+    length: Vec<usize>,
+    padding: usize,
+}
+
+impl SimpleTable {
+    /// Create a new Table
+    pub fn new(items: Vec<impl Into<String>>) -> Self {
+        Self::new_with_padding(items, 2)
+    }
+
+    /// Create a new Table with padding
+    pub fn new_with_padding(items: Vec<impl Into<String>>, padding: usize) -> Self {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+        let mut length = Vec::with_capacity(items.len());
+
+        for item in &items {
+            length.push(display_width(item));
+        }
+
+        SimpleTable {
+            items,
+            padding,
+            line: Vec::new(),
+            length,
+        }
+    }
+
+    /// Push a new row of items to the table
+    pub fn push_item(&mut self, items: Vec<impl Into<String>>) {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+
+        let mut processed_items = Vec::with_capacity(self.items.len());
+
+        for i in 0..self.items.len() {
+            if i < items.len() {
+                processed_items.push(items[i].clone());
+            } else {
+                processed_items.push(String::new());
+            }
+        }
+
+        for (i, d) in processed_items.iter().enumerate() {
+            let d_len = display_width(d);
+            if d_len > self.length[i] {
+                self.length[i] = d_len;
+            }
+        }
+
+        self.line.push(processed_items);
+    }
+
+    /// Insert a new row of items at the specified index
+    pub fn insert_item(&mut self, index: usize, items: Vec<impl Into<String>>) {
+        let items: Vec<String> = items.into_iter().map(|v| v.into()).collect();
+
+        let mut processed_items = Vec::with_capacity(self.items.len());
+
+        for i in 0..self.items.len() {
+            if i < items.len() {
+                processed_items.push(items[i].clone());
+            } else {
+                processed_items.push(String::new());
+            }
+        }
+
+        for (i, d) in processed_items.iter().enumerate() {
+            let d_len = display_width(d);
+            if d_len > self.length[i] {
+                self.length[i] = d_len;
+            }
+        }
+
+        self.line.insert(index, processed_items);
+    }
+
+    /// Get the current maximum column widths
+    fn get_column_widths(&self) -> &[usize] {
+        &self.length
+    }
+}
+
+impl std::fmt::Display for SimpleTable {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let column_widths = self.get_column_widths();
+
+        // Build the header row
+        let header: Vec<String> = self
+            .items
+            .iter()
+            .enumerate()
+            .map(|(i, item)| {
+                let target_width = column_widths[i] + self.padding;
+                let current_width = display_width(item);
+                let space_count = target_width - current_width;
+                let space = " ".repeat(space_count);
+                let result = format!("{}{}", item, space);
+                result
+            })
+            .collect();
+        writeln!(f, "{}", header.join(""))?;
+
+        // Build each data row
+        for row in &self.line {
+            let formatted_row: Vec<String> = row
+                .iter()
+                .enumerate()
+                .map(|(i, cell)| {
+                    let target_width = column_widths[i] + self.padding;
+                    let current_width = display_width(cell);
+                    let space_count = target_width - current_width;
+                    let spaces = " ".repeat(space_count);
+                    let result = format!("{}{}", cell, spaces);
+                    result
+                })
+                .collect();
+            writeln!(f, "{}", formatted_row.join(""))?;
+        }
+
+        Ok(())
+    }
+}
+
+pub fn display_width(s: &str) -> usize {
+    // Filter out ANSI escape sequences before calculating width
+    let filtered_bytes = strip_ansi_escapes::strip(s);
+    let filtered_str = match std::str::from_utf8(&filtered_bytes) {
+        Ok(s) => s,
+        Err(_) => s, // Fallback to original string if UTF-8 conversion fails
+    };
+
+    let mut width = 0;
+    for c in filtered_str.chars() {
+        if c.is_ascii() {
+            width += 1;
+        } else {
+            width += 2;
+        }
+    }
+    width
+}
+
+/// Convert byte size to a human-readable string format
+///
+/// Automatically selects the appropriate unit (B, KB, MB, GB, TB) based on the byte size
+/// and formats it as a string with two decimal places
+pub fn size_str(total_size: usize) -> String {
+    if total_size < 1024 {
+        format!("{} B", total_size)
+    } else if total_size < 1024 * 1024 {
+        format!("{:.2} KB", total_size as f64 / 1024.0)
+    } else if total_size < 1024 * 1024 * 1024 {
+        format!("{:.2} MB", total_size as f64 / (1024.0 * 1024.0))
+    } else if total_size < 1024 * 1024 * 1024 * 1024 {
+        format!("{:.2} GB", total_size as f64 / (1024.0 * 1024.0 * 1024.0))
+    } else {
+        format!(
+            "{:.2} TB",
+            total_size as f64 / (1024.0 * 1024.0 * 1024.0 * 1024.0)
+        )
+    }
+}
+
+// Convert the Markdown formatted text into a format supported by the command line
+pub fn md(text: impl AsRef<str>) -> String {
+    let text = text.as_ref().trim();
+    let mut result = String::new();
+    let mut color_stack: VecDeque<String> = VecDeque::new();
+
+    let mut i = 0;
+    let chars: Vec<char> = text.chars().collect();
+
+    while i < chars.len() {
+        // Check for escape character \
+        if chars[i] == '\\' && i + 1 < chars.len() {
+            let escaped_char = chars[i + 1];
+            // Only escape specific characters
+            if matches!(escaped_char, '*' | '<' | '>' | '`') {
+                let mut escaped_text = escaped_char.to_string();
+
+                // Apply current color stack
+                for color in color_stack.iter().rev() {
+                    escaped_text = apply_color(&escaped_text, color);
+                }
+
+                result.push_str(&escaped_text);
+                i += 2;
+                continue;
+            }
+        }
+
+        // Check for color tag start [[color]]
+        if i + 1 < chars.len() && chars[i] == '[' && chars[i + 1] == '[' {
+            let mut j = i + 2;
+            while j < chars.len()
+                && !(chars[j] == ']' && j + 1 < chars.len() && chars[j + 1] == ']')
+            {
+                j += 1;
+            }
+
+            if j + 1 < chars.len() {
+                let tag_content: String = chars[i + 2..j].iter().collect();
+
+                // Check if it's a closing tag [[/]]
+                if tag_content == "/" {
+                    color_stack.pop_back();
+                    i = j + 2;
+                    continue;
+                }
+
+                // It's a color tag
+                color_stack.push_back(tag_content.clone());
+                i = j + 2;
+                continue;
+            }
+        }
+
+        // Check for bold **text**
+        if i + 1 < chars.len() && chars[i] == '*' && chars[i + 1] == '*' {
+            let mut j = i + 2;
+            while j + 1 < chars.len() && !(chars[j] == '*' && chars[j + 1] == '*') {
+                j += 1;
+            }
+
+            if j + 1 < chars.len() {
+                let bold_text: String = chars[i + 2..j].iter().collect();
+                let mut formatted_text = bold_text.bold().to_string();
+
+                // Apply current color stack
+                for color in color_stack.iter().rev() {
+                    formatted_text = apply_color(&formatted_text, color);
+                }
+
+                result.push_str(&formatted_text);
+                i = j + 2;
+                continue;
+            }
+        }
+
+        // Check for italic *text*
+        if chars[i] == '*' {
+            let mut j = i + 1;
+            while j < chars.len() && chars[j] != '*' {
+                j += 1;
+            }
+
+            if j < chars.len() {
+                let italic_text: String = chars[i + 1..j].iter().collect();
+                let mut formatted_text = italic_text.italic().to_string();
+
+                // Apply current color stack
+                for color in color_stack.iter().rev() {
+                    formatted_text = apply_color(&formatted_text, color);
+                }
+
+                result.push_str(&formatted_text);
+                i = j + 1;
+                continue;
+            }
+        }
+
+        // Check for angle-bracketed content <text>
+        if chars[i] == '<' {
+            let mut j = i + 1;
+            while j < chars.len() && chars[j] != '>' {
+                j += 1;
+            }
+
+            if j < chars.len() {
+                // Include the angle brackets in the output
+                let angle_text: String = chars[i..=j].iter().collect();
+                let mut formatted_text = angle_text.cyan().to_string();
+
+                // Apply current color stack
+                for color in color_stack.iter().rev() {
+                    formatted_text = apply_color(&formatted_text, color);
+                }
+
+                result.push_str(&formatted_text);
+                i = j + 1;
+                continue;
+            }
+        }
+
+        // Check for inline code `text`
+        if chars[i] == '`' {
+            let mut j = i + 1;
+            while j < chars.len() && chars[j] != '`' {
+                j += 1;
+            }
+
+            if j < chars.len() {
+                // Include the backticks in the output
+                let code_text: String = chars[i..=j].iter().collect();
+                let mut formatted_text = code_text.green().to_string();
+
+                // Apply current color stack
+                for color in color_stack.iter().rev() {
+                    formatted_text = apply_color(&formatted_text, color);
+                }
+
+                result.push_str(&formatted_text);
+                i = j + 1;
+                continue;
+            }
+        }
+
+        // Regular character
+        let mut current_char = chars[i].to_string();
+
+        // Apply current color stack
+        for color in color_stack.iter().rev() {
+            current_char = apply_color(&current_char, color);
+        }
+
+        result.push_str(&current_char);
+        i += 1;
+    }
+
+    result
+}
+
+// Helper function to apply color to text
+fn apply_color(text: impl AsRef<str>, color_name: impl AsRef<str>) -> String {
+    let text = text.as_ref();
+    let color_name = color_name.as_ref();
+    match color_name {
+        // Normal colors
+        "black" => text.black().to_string(),
+        "red" => text.red().to_string(),
+        "green" => text.green().to_string(),
+        "yellow" => text.yellow().to_string(),
+        "blue" => text.blue().to_string(),
+        "magenta" => text.magenta().to_string(),
+        "cyan" => text.cyan().to_string(),
+        "white" => text.white().to_string(),
+        "bright_black" => text.bright_black().to_string(),
+        "bright_red" => text.bright_red().to_string(),
+        "bright_green" => text.bright_green().to_string(),
+        "bright_yellow" => text.bright_yellow().to_string(),
+        "bright_blue" => text.bright_blue().to_string(),
+        "bright_magenta" => text.bright_magenta().to_string(),
+        "bright_cyan" => text.bright_cyan().to_string(),
+        "bright_white" => text.bright_white().to_string(),
+
+        // Short aliases for bright colors
+        "b_black" => text.bright_black().to_string(),
+        "b_red" => text.bright_red().to_string(),
+        "b_green" => text.bright_green().to_string(),
+        "b_yellow" => text.bright_yellow().to_string(),
+        "b_blue" => text.bright_blue().to_string(),
+        "b_magenta" => text.bright_magenta().to_string(),
+        "b_cyan" => text.bright_cyan().to_string(),
+        "b_white" => text.bright_white().to_string(),
+
+        // Gray colors using truecolor
+        "gray" | "grey" => text.truecolor(128, 128, 128).to_string(),
+        "bright_gray" | "bright_grey" => text.truecolor(192, 192, 192).to_string(),
+        "b_gray" | "b_grey" => text.truecolor(192, 192, 192).to_string(),
+
+        // Default to white if color not recognized
+        _ => text.to_string(),
+    }
+}
+
+/// Render a HashMap of PathBuf to SheetMappingMetadata as a tree string.
+pub fn render_share_path_tree(paths: &HashMap<PathBuf, SheetMappingMetadata>) -> String {
+    if paths.is_empty() {
+        return String::new();
+    }
+
+    // Collect all path components into a tree structure
+    let mut root = TreeNode::new("".to_string());
+
+    for (path, metadata) in paths {
+        let mut current = &mut root;
+        let components: Vec<String> = path
+            .components()
+            .filter_map(|comp| match comp {
+                std::path::Component::Normal(s) => s.to_str().map(|s| s.to_string()),
+                _ => None,
+            })
+            .collect();
+
+        for (i, comp) in components.iter().enumerate() {
+            let is_leaf = i == components.len() - 1;
+            let child = current
+                .children
+                .entry(comp.clone())
+                .or_insert_with(|| TreeNode::new(comp.clone()));
+
+            // If this is the leaf node, store the metadata
+            if is_leaf {
+                child.metadata = Some((metadata.id.clone(), metadata.version.clone()));
+            }
+
+            current = child;
+        }
+    }
+
+    // Convert tree to string representation
+    let mut result = String::new();
+    let is_root = true;
+    let prefix = String::new();
+    let last_stack = vec![true]; // Root is always "last"
+
+    add_tree_node_to_string(&root, &mut result, is_root, &prefix, &last_stack);
+
+    result
+}
+
+/// Internal tree node structure for building the path tree
+#[derive(Debug)]
+struct TreeNode {
+    name: String,
+    children: BTreeMap<String, TreeNode>, // Use BTreeMap for sorted output
+    metadata: Option<(String, String)>,   // Store (id, version) for leaf nodes
+}
+
+impl TreeNode {
+    fn new(name: String) -> Self {
+        Self {
+            name,
+            children: BTreeMap::new(),
+            metadata: None,
+        }
+    }
+}
+
+/// Recursively add tree node to string representation
+fn add_tree_node_to_string(
+    node: &TreeNode,
+    result: &mut String,
+    is_root: bool,
+    prefix: &str,
+    last_stack: &[bool],
+) {
+    if !is_root {
+        // Add the tree prefix for this node
+        for &is_last in &last_stack[1..] {
+            if is_last {
+                result.push_str("    ");
+            } else {
+                result.push_str("│   ");
+            }
+        }
+
+        // Add the connector for this node
+        if let Some(&is_last) = last_stack.last() {
+            if is_last {
+                result.push_str("└── ");
+            } else {
+                result.push_str("├── ");
+            }
+        }
+
+        // Add node name
+        result.push_str(&node.name);
+
+        // Add metadata for leaf nodes
+        if let Some((id, version)) = &node.metadata {
+            // Truncate id to first 11 characters
+            let truncated_id = if id.len() > 11 { &id[..11] } else { id };
+            result.push_str(&format!(" [{}|{}]", truncated_id, version));
+        }
+
+        result.push('\n');
+    }
+
+    // Process children
+    let child_count = node.children.len();
+    for (i, (_, child)) in node.children.iter().enumerate() {
+        let is_last_child = i == child_count - 1;
+        let mut new_last_stack = last_stack.to_vec();
+        new_last_stack.push(is_last_child);
+
+        add_tree_node_to_string(child, result, false, prefix, &new_last_stack);
+    }
+}
diff --git a/utils/src/env.rs b/utils/src/legacy/env.rs
index 1834cd3..1834cd3 100644
--- a/utils/src/env.rs
+++ b/utils/src/legacy/env.rs
diff --git a/utils/src/fs.rs b/utils/src/legacy/fs.rs
index 0050cf1..0050cf1 100644
--- a/utils/src/fs.rs
+++ b/utils/src/legacy/fs.rs
diff --git a/utils/src/globber.rs b/utils/src/legacy/globber.rs
index 7021898..4d722db 100644
--- a/utils/src/globber.rs
+++ b/utils/src/legacy/globber.rs
@@ -2,7 +2,7 @@ use std::{io::Error, path::PathBuf, str::FromStr};
 
 use just_fmt::fmt_path::fmt_path_str;
 
-use crate::globber::constants::{SPLIT_STR, get_base_dir_current};
+use crate::legacy::globber::constants::{SPLIT_STR, get_base_dir_current};
 
 pub struct Globber {
     pattern: String,
diff --git a/utils/src/input.rs b/utils/src/legacy/input.rs
index bc67d90..95d53cb 100644
--- a/utils/src/input.rs
+++ b/utils/src/legacy/input.rs
@@ -1,6 +1,6 @@
 use tokio::{fs, process::Command};
 
-use crate::env::get_default_editor;
+use crate::legacy::env::get_default_editor;
 
 /// Confirm the current operation
 /// Waits for user input of 'y' or 'n'
diff --git a/utils/src/levenshtein_distance.rs b/utils/src/legacy/levenshtein_distance.rs
index 6bdb7e7..6bdb7e7 100644
--- a/utils/src/levenshtein_distance.rs
+++ b/utils/src/legacy/levenshtein_distance.rs
diff --git a/utils/src/logger.rs b/utils/src/legacy/logger.rs
index 1bc96c1..1bc96c1 100644
--- a/utils/src/logger.rs
+++ b/utils/src/legacy/logger.rs
diff --git a/utils/src/push_version.rs b/utils/src/legacy/push_version.rs
index 6da9039..6da9039 100644
--- a/utils/src/push_version.rs
+++ b/utils/src/legacy/push_version.rs
diff --git a/utils/src/socket_addr_helper.rs b/utils/src/legacy/socket_addr_helper.rs
index 29ccd9f..29ccd9f 100644
--- a/utils/src/socket_addr_helper.rs
+++ b/utils/src/legacy/socket_addr_helper.rs
diff --git a/utils/src/lib.rs b/utils/src/lib.rs
index ef56189..ca2be9c 100644
--- a/utils/src/lib.rs
+++ b/utils/src/lib.rs
@@ -1,10 +1,6 @@
 pub mod display;
-pub mod env;
-pub mod fs;
-pub mod globber;
-pub mod input;
-pub mod lazy_macros;
-pub mod levenshtein_distance;
-pub mod logger;
-pub mod push_version;
-pub mod socket_addr_helper;
+pub mod macros;
+pub mod math;
+
+// Legacy
+pub mod legacy;
diff --git a/utils/src/lazy_macros.rs b/utils/src/macros.rs
index f1cb75e..f1cb75e 100644
--- a/utils/src/lazy_macros.rs
+++ b/utils/src/macros.rs
diff --git a/utils/src/math.rs b/utils/src/math.rs
new file mode 100644
index 0000000..42a44a1
--- /dev/null
+++ b/utils/src/math.rs
@@ -0,0 +1 @@
+pub mod levenshtein_distance;
diff --git a/utils/src/math/levenshtein_distance.rs b/utils/src/math/levenshtein_distance.rs
new file mode 100644
index 0000000..98caa20
--- /dev/null
+++ b/utils/src/math/levenshtein_distance.rs
@@ -0,0 +1,38 @@
+use std::cmp::min;
+
+pub fn levenshtein_distance(a: &str, b: &str) -> usize {
+    let a_len = a.chars().count();
+    let b_len = b.chars().count();
+
+    if a_len == 0 {
+        return b_len;
+    }
+    if b_len == 0 {
+        return a_len;
+    }
+
+    let mut prev_row: Vec<usize> = (0..=b_len).collect();
+    let mut curr_row = vec![0; b_len + 1];
+
+    let mut a_chars = a.chars();
+
+    for i in 1..=a_len {
+        let a_char = a_chars.next().unwrap();
+        curr_row[0] = i;
+
+        let mut b_chars = b.chars();
+        for j in 1..=b_len {
+            let b_char = b_chars.next().unwrap();
+
+            let cost = if a_char == b_char { 0 } else { 1 };
+            curr_row[j] = min(
+                prev_row[j] + 1,
+                min(curr_row[j - 1] + 1, prev_row[j - 1] + cost),
+            );
+        }
+
+        std::mem::swap(&mut prev_row, &mut curr_row);
+    }
+
+    prev_row[b_len]
+}