preservim/tagbar
Tagbar
Tagbar is a Vim plugin that displays a resizable sidebar of code tags parsed by Exuberant Ctags, organized by scope, with cursor-linked highlighting and key-mapped jumps to definitions. It provides a hierarchical view of code elements like functions and classes from the current file, enabling navigation and structural overview directly within the editor.
The plugin integrates with Exuberant Ctags to parse source files and extract tag definitions, then organizes those symbols into a tree structure based on their enclosing scope, such as class or function boundaries. It features real-time file parsing that triggers tag regeneration automatically when the current buffer is saved or its content changes, and maps keyboard shortcuts to jump from a tag entry to its definition location in the source file.
Tagbar renders the tag hierarchy in a separate, resizable vertical window alongside the main editing buffer, and scrolls the tag window to highlight the symbol corresponding to the cursor position in the main buffer. This allows browsing a file's tags grouped by their scope to understand its internal structure and navigate between sections.