https://github.com/kstep/regindex

Index &str with regex in Rust (experiment)
https://github.com/kstep/regindex

Last synced: about 2 months ago
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Index &str with regex in Rust (experiment)

• Host: GitHub
• URL: https://github.com/kstep/regindex
• Owner: kstep
• License: mit
• Created: 2015-03-20T08:08:50.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-03-21T12:53:28.000Z (almost 10 years ago)
• Last Synced: 2024-10-11T23:46:58.680Z (2 months ago)
• Language: Rust
• Size: 148 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# regindex

Index &str with regex in Rust (experiment)

Inspired by Ruby syntax for regexp matching using indexing.

Examples:

```rust

#[macro_use]

use regindex::ReIdx;

fn main() {

    let haystack = "abbcccdddd";

    let found = &haystack[ri!["cd+"]];  // == "cdddd"

    // or more verbose way without macros:

    let found = &haystack[ReIdx::new("bc+")];  // == "bccc"

    // if nothing found or error, it returns empty slice:

    let found = &haystack[ReIdx::new("(c+")];  // == "" (invalid regexp)

    let found = &haystack[ri!["(c+"]];  // but this will panic!

    let found = &haystack[ReIdx::new("ax+")];  // == "" (no match found)

    // you can also wrap regex:

    let re = Regex::new("ab+");

    let found = &haystack[ReIdx::from_regex(re)];  // == "abb"

}

```