DRY parser impls

Dependencies

• [2] RTDVYLFT Give gemtext parser a more uniform interface wrt other parsers
• [3] JBZGFYVO Add nom parsers for main types
• [4] BOFUYB6I Add documentation and implement some feedback from Discord (https://discord.com/channels/273534239310479360/354038657075904544/796256815024701480)
• [*] 5II6T7YE Add gemini library

Change contents

• replacement in gemini/src/lib.rs at line 30
  [3.2165]→[3.2165:2202](∅→∅)
  − use nom::{error::Error, Finish};
  [3.2165]

  [3.2202]
  + use nom::{error::Error, Finish, IResult};
• edit in gemini/src/lib.rs at line 34
  [2.61]

  [3.2277]
  +

  + fn handle<I: ToOwned + ?Sized, O>(res: IResult<&I, O>) -> Result<O, Error<I::Owned>> {

  + match res.finish() {

  + Ok((_, res)) => Ok(res),

  + Err(Error { input, code }) => Err({

  + let input = input.to_owned();

  + Error { input, code }

  + }),

  + }

  + }
• replacement in gemini/src/lib.rs at line 55
  [3.2647]→[3.2647:3005](∅→∅)
  − match $name::parse::$name(bytes).finish() {

  − Ok((_, res)) => Ok(res),

  − Err(Error { input, code }) => Err({

  − let input = input.to_owned();

  − Error { input, code }

  − })

  − }
  [3.2647]

  [3.3005]
  + handle($name::parse::$name(bytes))
• replacement in gemini/src/lib.rs at line 76
  [2.357]→[2.357:606](∅→∅)
  − match gemtext::parse::document(input).finish() {

  − Ok((_, b)) => Ok(b),

  − Err(Error { input, code }) => Err({

  − let input = input.to_string();

  − Error { input, code }

  − }),

  − }
  [2.357]

  [2.606]
  + handle(gemtext::parse::document(input))