Crystal REVS is the best context-sensitive editor there is.

Review Code in No Time Create Flowchart from Source for a clear view of the code Verify correctness of function. Detect errors Use Flowcharts for quick Code-reviews View Flowcharts – level wise, optimal, loops, conditions, area wise. Code and Flowchart Synchronization when browsing Comment-based flowcharts for a wider audience. Export flowcharts to BMP/JPEG/VISIO formats. Code-only, Comment-only and Code+Comment flowcharts. Print large flowcharts on a single page. Object and Stack Size Various Compiler Support

Code is Easy-to-read: Auto-Formatting of Code and Comments. Line up object-names in successive declarations. Line up assignment operators in assignments. Split and indent long expressions as per operator precedence Transform hard-to-read code into very readable code. Improved code readability. Detect errors easily

Other features Editing and Formatting in Real Time Tokens and Comments Panel for easy code entry State Diagrams File/Project/Function Call-Trees, Caller Trees, Include Trees & Include By Trees, Paths. Premium Code/Comment Browsing Project Level - Word/Object/Modified Object/Regular Expression/Lexical Search Software Metrics - McCabes, Halstead HTML documents of source+comments (Javadoc like!). No need to maintain HTML documents - just comment code with Comments Panel. Cross-reference for all identifiers, Color Coded Metrics display. Import projects from VC++. Visual Studio.Net, Borland Language Extensions + Keil Compiler Support SCC Integration

Editions: Rules AddOn: MISRA C Static Checking DataFlow: Rich Trees, Data Flows for an object, Call Flow, Data Dependency, Flowcharts with inline expansion. Docs AddOn: Flowcharts, trees, Source Code listing with full-fledged browsing in HTML docs. Professional: Base+Rules+Docs Editions ProPlus: All the above + Full Project Flowchart, Command Line mode add-on