Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gi

Test String

Code Generator

Language

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r"(?i)((?<=[ )()']where)|(?<=[ )()']and)|(?<=[ )()']o[rn])|(?<=[ )()']if)|(?<=[ )()']when)|(?<=having))+(\s|\()+[)(,'+_¥£$#\@\w\[\]\.\s]+like\s*\(?\s*(('((\w|%|'{2})*)')\s*\+)*\s*@p\d+\s*(\+('%'))*\)").unwrap(); let string = "select * from a where #myTable$@_¥£.$@_¥£#columnName like ('%'+@p2+'%') select * from a where #myTable$_¥£.$_¥£#columnName like ('%'+@p2+'%') (\\w|\\[|\\]|\\.|\\s|'|\\+|\\(|\\)|\\,) select a from b where h like ('%'+@p2+'%') having b.d like ('%'+@p2) )join c on a.b like (@p2+'%') and a.b like (@p2) if a like ('%abc24''as'+@p2+'%') case when a like ('%'+@p2+'%') where (((a like ('%'+ @p2+'%')))) where a + 'b' like ('%'+@p2+'%') where concat(a,b) like ('%'+@p2+'%') or ltrim(a) like ('%'+@p2+'%') select * from a where concat(a,b) like 'a' and c like d or ltrim(a) like ('%'+@p2+'%') where isnull(ltrim(a), '0') like ('%'+@p2+'%') where a + 'b' LIKe ('%'+@p2+'%') vICM_EVENTlike roadshowev0like_ where upper(roadshowev0like_.EVENT_NAME) like ('%'+@p1+'%') or upper(roadshowev0like_.EVENT_SYMBOLlike) like ('%'+@p2+'%') and e_.EVENT_SYMBOLike like('%'+@p2+'%') from vICM_INVESTOR investor0_ where (upper(investor0_.OrgId) like ('%'+@p1+'%') or upper(investor0_.Name) like ('%'+@p2+'%')) and investor0_.IsDeactivated=@p3 order by investor0_.Name asc where ((h.g) + upper(concat(investor0_.OrgId, 'd') + (a.d)) like ('%'+@p1+'%') or upper(investor0_.Name) like ('%'+@p2+'%')) and investor0_.IsDeactivated=@p3 order by investor0_.Name asc where (a.b like ('%'+@p2+'%')) and d.g like ('%'+@p2+'%') (where a.b like ('%'+@p2) if a like ('%'+@p2) join a on b.d like ('%'+@p2) // not supported where a like 'b' and c like ('%'+@p2+'%') where a like (' '+@p1+'%') // supported where a like ('%'+@p1+'%') and c like ('%'+@p2+'%') "; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/