regex101: JavaScript Match Workspace

1st Alternative(?=["'])(?:"[^"\\]*(?:\\[\s\S][^"\\]*)*"|'[^'\\]*(?:\\[\s\S][^'\\]*)*')

Positive Lookahead(?=["'])

Character Class["']

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Non-Capturing Group(?:"[^"\\]*(?:\\[\s\S][^"\\]*)*"|'[^'\\]*(?:\\[\s\S][^'\\]*)*')

1st Alternative"[^"\\]*(?:\\[\s\S][^"\\]*)*"

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:\\[\s\S][^"\\]*)*

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\s\S]

\sany whitespace character

\Sany non-whitespace character

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative'[^'\\]*(?:\\[\s\S][^'\\]*)*'

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^'\\]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:\\[\s\S][^'\\]*)*

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\s\S]

\sany whitespace character

\Sany non-whitespace character

Negated Character Class[^'\\]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative(#.*$)

Group 1(#.*$)

#the literal # (35₁₀ / 43₈ / 23₁₆)

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

$end of line

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

Search reference

Regular Expression

(?=["'])(?:"[^"\\]*(?:\\[\s\S][^"\\]*)*"|'[^'\\]*(?:\\[\s\S][^'\\]*)*')|(#.*$)

New

class AAA:
    """
        item
    """
     ''''
    SRC_TYPE = (
        ('cs', 'src C# for all'),       # this is a comment a 'comment'
        ('cpp', 'C++'),
        ('ascript', 'a  '),#djshdjshdjshds
        ('script', 'tst C#')
    )