Скачать или смотреть Resolving the E119: Not enough arguments Error in Vim with -nargs Parameter

Learn how to solve the common `E119: Not enough arguments` error in Vim related to command-line arguments for functions using the `-nargs` parameter. Discover the importance of using `f-args` in this case!
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This video is based on the question https://stackoverflow.com/q/76640600/ asked by the user 'Eros Danailov Donchev' ( https://stackoverflow.com/u/13918112/ ) and on the answer https://stackoverflow.com/a/76640952/ provided by the user 'Eros Danailov Donchev' ( https://stackoverflow.com/u/13918112/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing the E119: Not enough arguments Error in Vim

If you are encountering the frustrating error E119: Not enough arguments for function: Adda/Addw while using Vim and its commands, you’re not alone. This error usually arises when the number of arguments expected by a function does not match the number you supply. Let's walk through the commands and functions that caused this issue and explore how to effectively solve it.

Problem Overview

You have defined two commands, Addw and Adda, in your Vim configuration that are designed to add web addresses and app addresses, respectively. Here’s a quick overview of the commands:

[[See Video to Reveal this Text or Code Snippet]]

The intention here is for both commands to take one or more arguments, which include a name and an address. However, running these commands is resulting in an error message due to the way arguments are being passed to the functions Addw and Adda.

Why This Error Occurs

The main reason for receiving the E119 error is the use of q-args in your command definitions. When you declare the commands with -nargs=+ , Vim expects these commands to take one or more arguments, but if they are not formatted correctly in the function call, it can lead to this specific problem.

Example of the Error Context

You might have encountered the error while trying to run a command like:

[[See Video to Reveal this Text or Code Snippet]]

Vim is unable to parse the arguments correctly due to the q-args, which is meant for quoting arguments but does not work well with the context here.

The Solution: Use f-args Instead of q-args

To resolve this issue, you should replace q-args with f-args in your command definitions. The f-args allows the function to receive all remaining arguments correctly. Here's how to modify your commands:

[[See Video to Reveal this Text or Code Snippet]]

Benefits of Using f-args

Correct Argument Parsing: It ensures that the arguments are passed to the functions without any parsing issues.

Avoids Errors: Using f-args mitigates the chances of encountering the E119 error by aligning the argument expectations with actual inputs.

Updated Function Calls

After making the above modifications, your functions will be correctly invoked with both the provided name and address parameters. The final updated structure of your commands will look like this:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By replacing q-args with f-args, you can effectively eliminate the E119: Not enough arguments error when using your Vim commands. This makes your command-line interactions smoother and more efficient. Keep this solution in mind the next time you encounter similar issues, and happy Vimming!