Regular Expressions 101

Pro

^start of line

Negative Lookahead(?!.*\[table\b[^][]*language)

.*any character (except for line terminators), repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

tablethe literal text table (case sensitive)

\ban ASCII word boundary

Negated Character Class[^][]*

*matches any number of characters outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

languagethe literal text language (case sensitive)

.*any character (except for line terminators), repeated any number of times

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

tablethe literal text table (case sensitive)

\ban ASCII word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

^(?!.*\[table\b[^][]*language).*\[table\b

New

/* example where it should match entry 1:
entry 1: ...lorem ipsum [table mode="foo" offset="1"] dolor sit...
entry 2: ...lorem ipsum dolor sit...
entry 3: ...lorem ipsum [table language="en" mode="foo"] dolor sit...
*/