Regex question

[John]

I am having a lot of trouble creaing the following regex :

Match a quoted string unless it is preceded by '--', the '--' can only
be preceded by whitespace.

e.g for a target string of :

DISPLAY-HINT "1x:"

"1x:" should be matched

for a target string of :

-- DISPLAY-HINT "1x:"

nothing should be matched.



Any help would be much appreciated.

John.

 

[Gunnar Hjalmarsson]

Match a quoted string unless it is preceded by '--', the '--' can only
be preceded by whitespace.

e.g for a target string of :

DISPLAY-HINT "1x:"

"1x:" should be matched

for a target string of :

-- DISPLAY-HINT "1x:"

nothing should be matched.

/".+"/ and !/^ *--/

 

[axel]

I am having a lot of trouble creaing the following regex :

Match a quoted string unless it is preceded by '--', the '--' can only
be preceded by whitespace.

e.g for a target string of :

DISPLAY-HINT "1x:"

"1x:" should be matched

for a target string of :

-- DISPLAY-HINT "1x:"

nothing should be matched.

Do I understand this correctly... when you say "1x" should be matched,
do you want to capture this value? If then the following will ignore
white-space at the start of the string, not match '--' at the start of
the string:

/^\s*[^ -]{2}.*"(.*)"/

The captured valuer will be in $1.

Axel

 

[Gunnar Hjalmarsson]

Match a quoted string unless it is preceded by '--', the '--' can only
be preceded by whitespace.

e.g for a target string of :

DISPLAY-HINT "1x:"

"1x:" should be matched

for a target string of :

-- DISPLAY-HINT "1x:"

nothing should be matched.

Do I understand this correctly... when you say "1x" should be matched,
do you want to capture this value? If then the following will ignore
white-space at the start of the string, not match '--' at the start of
the string:

/^\s*[^ -]{2}.*"(.*)"/

What about 'P-HINT "1x:"' or 'A HINT "1x:"'? ;-)

 

[axel]

Match a quoted string unless it is preceded by '--', the '--' can only
be preceded by whitespace.

e.g for a target string of :

DISPLAY-HINT "1x:"

"1x:" should be matched

for a target string of :

-- DISPLAY-HINT "1x:"

nothing should be matched.

Do I understand this correctly... when you say "1x" should be matched,
do you want to capture this value? If then the following will ignore
white-space at the start of the string, not match '--' at the start of
the string:

/^\s*[^ -]{2}.*"(.*)"/

What about 'P-HINT "1x:"' or 'A HINT "1x:"'? ;-)

It wouldn't works

So, maybe;

/^ (?! \s*--) .* "(.*)" /x

Axel