ReUtil

Struct ReUtil 

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pub struct ReUtil;
Expand description

正则工具,如匹配、捕获第一个、捕获所有等

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impl ReUtil

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pub fn is_match(re: &str, text: &str) -> bool

检查文本是否匹配给定的正则表达式模式

§参数
  • re - 正则表达式模式字符串
  • text - 要检查的文本字符串
§返回值

如果文本匹配正则表达式模式则返回true,否则返回false

§Panics

当正则表达式模式无效时会panic

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pub fn find_first<'a>(re: &str, text: &'a str) -> Option<&'a str>

在给定文本中查找第一个匹配正则表达式的子串

§参数
  • re - 要匹配的正则表达式字符串
  • text - 要搜索的文本内容
§返回值

返回第一个匹配的子串引用,如果没有匹配则返回None

§示例
let result = find_first(r"\d+", "abc123def456");
assert_eq!(result, Some("123"));
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pub fn find_all(re: &str, text: &str) -> Vec<String>

在给定文本中查找所有匹配正则表达式的子串

§参数
  • re - 要使用的正则表达式字符串
  • text - 要搜索的文本
§返回值

返回包含所有匹配子串的字符串向量

§示例
let matches = find_all(r"\d+", "abc123def456");
assert_eq!(matches, vec!["123", "456"]);
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pub fn captures(re: &str, text: &str) -> Vec<String>

使用正则表达式匹配文本并返回所有捕获组的字符串列表

§参数
  • re - 正则表达式字符串
  • text - 要匹配的文本字符串
§返回值

返回包含所有捕获组匹配结果的字符串向量,如果没有匹配则返回空向量

§示例
let result = captures(r"^images_(\d{4}-\d{2}-\d{2})_([a-zA-Z0-9]+).jpg$", "images_2025-01-01_xxxx.jpg");
assert_eq!(result, vec!["images_2025-01-01_xxxx.jpg", "2025-01-01", "xxxx"]);

Auto Trait Implementations§

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impl Freeze for ReUtil

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impl RefUnwindSafe for ReUtil

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impl Send for ReUtil

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impl Sync for ReUtil

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impl Unpin for ReUtil

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impl UnwindSafe for ReUtil

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impl<T> Any for T
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Calls U::from(self).

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