regex101: PCRE (Legacy) Substitution Workspace

Pro

1st Alternative%[^%]*%?

%the literal % (37₁₀ / 45₈ / 25₁₆)

Negated Character Class[^%]*

*matches any number of characters outside the set below:

%the literal % (37₁₀ / 45₈ / 25₁₆)

%?optionally matches the literal % (37₁₀ / 45₈ / 25₁₆)

2nd Alternative/\*[^*]*(?:\*(?!/)[^*]*)*(?:\*/)?

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negated Character Class[^*]*

*matches any number of characters outside the set below:

*the literal * (42₁₀ / 52₈ / 2A₁₆)

Non-Capturing Group(?:\*(?!/)[^*]*)*

*repeats the group contents below any number of times:

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negative Lookahead(?!/)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^*]*

*matches any number of characters outside the set below:

*the literal * (42₁₀ / 52₈ / 2A₁₆)

Non-Capturing Group(?:\*/)?

?repeats the group contents below at most once:

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

25 tokens

Regular Expression

%[^%]*%?|/\*[^*]*(?:\*(?!/)[^*]*)*(?:\*/)?

New

INPUT1: Sarah was going out. % Remember she usually doesn't go out % It was very cold.

INPUT2: Sarah was going out. /* Remember she usually doesn't go out */ It was very cold.

INPUT3: Charles knocked on the door and a woman 
  opened it. % Hmm, is this good... /* Not 
  sure */ Perhaps this should happen in 
  chapter 10 instead? % She looked at him.
  - Yes?, she said.

INPUT4: Charles knocked on the door and a woman 
  opened it. % Hmm, is this good... /* Not 
  sure to 100% */ Perhaps this should happen 
  in chapter 10 instead? % She looked at him.
  - Yes?, she said.

Substitution

INPUT1: Sarah was going out. % Remember she usually doesn't go out % It was very cold.

INPUT2: Sarah was going out. /* Remember she usually doesn't go out */ It was very cold.

INPUT3: Charles knocked on the door and a woman 
  opened it. % Hmm, is this good... /* Not 
  sure */ Perhaps this should happen in 
  chapter 10 instead? % She looked at him.
  - Yes?, she said.

INPUT4: Charles knocked on the door and a woman 
  opened it. % Hmm, is this good... /* Not 
  sure to 100% */ Perhaps this should happen 
  in chapter 10 instead? % She looked at him.
  - Yes?, she said.