Regex error: What is wrong with this Regex?
I am trying to write a regex for a Java program which matches all JS code snippets like this:
<script>
window.box||((box=function(){box.q.push(arguments);}).q=);
box('ns:foo','event', 'bar', {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'});
</script>
This is what I have so far:
private final static String SCRIPT_CODE_REG_EXP = "(^<script>\n.*\n box(\('ns:.*','event', '%s',)(\{%s\}){1}\)(;\n</script>$)";
The JSON values {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'} will be passed in as part of String.format().
I am not able to match the JS snippet with that regex.
java regex
asked Dec 28 '18 at 0:28
ss123
266
add a comment |
I am trying to write a regex for a Java program which matches all JS code snippets like this:
<script>
window.box||((box=function(){box.q.push(arguments);}).q=);
box('ns:foo','event', 'bar', {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'});
</script>
This is what I have so far:
private final static String SCRIPT_CODE_REG_EXP = "(^<script>\n.*\n box(\('ns:.*','event', '%s',)(\{%s\}){1}\)(;\n</script>$)";
The JSON values {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'} will be passed in as part of String.format().
I am not able to match the JS snippet with that regex.
java regex
asked Dec 28 '18 at 0:28
ss123
266
Do you make sure that the JSON values do not contain regex patterns (usingPattern#quote)?
– Marcono1234
Dec 28 '18 at 0:32
add a comment |
I am trying to write a regex for a Java program which matches all JS code snippets like this:
<script>
window.box||((box=function(){box.q.push(arguments);}).q=);
box('ns:foo','event', 'bar', {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'});
</script>
This is what I have so far:
private final static String SCRIPT_CODE_REG_EXP = "(^<script>\n.*\n box(\('ns:.*','event', '%s',)(\{%s\}){1}\)(;\n</script>$)";
The JSON values {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'} will be passed in as part of String.format().
I am not able to match the JS snippet with that regex.
java regex
asked Dec 28 '18 at 0:28
ss123
266
I am trying to write a regex for a Java program which matches all JS code snippets like this:
<script>
window.box||((box=function(){box.q.push(arguments);}).q=);
box('ns:foo','event', 'bar', {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'});
</script>
This is what I have so far:
private final static String SCRIPT_CODE_REG_EXP = "(^<script>\n.*\n box(\('ns:.*','event', '%s',)(\{%s\}){1}\)(;\n</script>$)";
The JSON values {delimiter:'null',display_name:'baz',id:'12345',name:'attr_1',value:'attr_val',event_type:'abc'} will be passed in as part of String.format().
I am not able to match the JS snippet with that regex.
java regex
java regex
asked Dec 28 '18 at 0:28
ss123
266
asked Dec 28 '18 at 0:28
ss123
266
asked Dec 28 '18 at 0:28
ss123
266
asked Dec 28 '18 at 0:28
ss123
266
asked Dec 28 '18 at 0:28
ss123
266
266
Do you make sure that the JSON values do not contain regex patterns (usingPattern#quote)?
– Marcono1234
Dec 28 '18 at 0:32
add a comment |
Do you make sure that the JSON values do not contain regex patterns (usingPattern#quote)?
– Marcono1234
Dec 28 '18 at 0:32
Do you make sure that the JSON values do not contain regex patterns (using
Pattern#quote)?– Marcono1234
Dec 28 '18 at 0:32
Do you make sure that the JSON values do not contain regex patterns (using
Pattern#quote)?– Marcono1234
Dec 28 '18 at 0:32
add a comment |
2 Answers
2
active
oldest
votes
If you look at this regex java interprets it as:
(^<script>n.*n box(('ns:.*','event', '%s',)({%s}){1})(;n</script>$)
^... The opening parenthesis is without a corresponding closing parenthesis.
Thats why this regex gives you an error.
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
add a comment |
Try this regex:
^<script>n.*n box('ns:.*','event', '%s', {%s});n</script>$
Java:
String patternString = "^<script>\n.*\n box\('ns:.*','event', '%s', \{%s\}\);\n</script>$";
Changes
- Removed not needed or incorrectly placed parentheses
- Added missing space after
'%s',
- Removed not needed quantifier
{1}
It is not exactly clear from your question, but make sure you pass two objects to format since there are two format specifiers.
Make sure to quote the values before inserting them into the pattern.
You can use tools like regex101 for testing regex patterns, however it does not support Java regex notation and therefore some features might not be available or only in different form.
answered Dec 28 '18 at 1:02
Marcono1234
413313
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you look at this regex java interprets it as:
(^<script>n.*n box(('ns:.*','event', '%s',)({%s}){1})(;n</script>$)
^... The opening parenthesis is without a corresponding closing parenthesis.
Thats why this regex gives you an error.
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
add a comment |
If you look at this regex java interprets it as:
(^<script>n.*n box(('ns:.*','event', '%s',)({%s}){1})(;n</script>$)
^... The opening parenthesis is without a corresponding closing parenthesis.
Thats why this regex gives you an error.
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
add a comment |
If you look at this regex java interprets it as:
(^<script>n.*n box(('ns:.*','event', '%s',)({%s}){1})(;n</script>$)
^... The opening parenthesis is without a corresponding closing parenthesis.
Thats why this regex gives you an error.
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
If you look at this regex java interprets it as:
(^<script>n.*n box(('ns:.*','event', '%s',)({%s}){1})(;n</script>$)
^... The opening parenthesis is without a corresponding closing parenthesis.
Thats why this regex gives you an error.
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
answered Dec 28 '18 at 0:40
Andie2302
3,26221436
3,26221436
add a comment |
add a comment |
Try this regex:
^<script>n.*n box('ns:.*','event', '%s', {%s});n</script>$
Java:
String patternString = "^<script>\n.*\n box\('ns:.*','event', '%s', \{%s\}\);\n</script>$";
Changes
- Removed not needed or incorrectly placed parentheses
- Added missing space after
'%s',
- Removed not needed quantifier
{1}
It is not exactly clear from your question, but make sure you pass two objects to format since there are two format specifiers.
Make sure to quote the values before inserting them into the pattern.
You can use tools like regex101 for testing regex patterns, however it does not support Java regex notation and therefore some features might not be available or only in different form.
answered Dec 28 '18 at 1:02
Marcono1234
413313
add a comment |
Try this regex:
^<script>n.*n box('ns:.*','event', '%s', {%s});n</script>$
Java:
String patternString = "^<script>\n.*\n box\('ns:.*','event', '%s', \{%s\}\);\n</script>$";
Changes
- Removed not needed or incorrectly placed parentheses
- Added missing space after
'%s',
- Removed not needed quantifier
{1}
It is not exactly clear from your question, but make sure you pass two objects to format since there are two format specifiers.
Make sure to quote the values before inserting them into the pattern.
You can use tools like regex101 for testing regex patterns, however it does not support Java regex notation and therefore some features might not be available or only in different form.
answered Dec 28 '18 at 1:02
Marcono1234
413313
add a comment |
Try this regex:
^<script>n.*n box('ns:.*','event', '%s', {%s});n</script>$
Java:
String patternString = "^<script>\n.*\n box\('ns:.*','event', '%s', \{%s\}\);\n</script>$";
Changes
- Removed not needed or incorrectly placed parentheses
- Added missing space after
'%s',
- Removed not needed quantifier
{1}
It is not exactly clear from your question, but make sure you pass two objects to format since there are two format specifiers.
Make sure to quote the values before inserting them into the pattern.
You can use tools like regex101 for testing regex patterns, however it does not support Java regex notation and therefore some features might not be available or only in different form.
answered Dec 28 '18 at 1:02
Marcono1234
413313
Try this regex:
^<script>n.*n box('ns:.*','event', '%s', {%s});n</script>$
Java:
String patternString = "^<script>\n.*\n box\('ns:.*','event', '%s', \{%s\}\);\n</script>$";
Changes
- Removed not needed or incorrectly placed parentheses
- Added missing space after
'%s',
- Removed not needed quantifier
{1}
It is not exactly clear from your question, but make sure you pass two objects to format since there are two format specifiers.
Make sure to quote the values before inserting them into the pattern.
You can use tools like regex101 for testing regex patterns, however it does not support Java regex notation and therefore some features might not be available or only in different form.
answered Dec 28 '18 at 1:02
Marcono1234
413313
answered Dec 28 '18 at 1:02
Marcono1234
413313
answered Dec 28 '18 at 1:02
Marcono1234
413313
answered Dec 28 '18 at 1:02
Marcono1234
413313
413313
add a comment |
add a comment |
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Do you make sure that the JSON values do not contain regex patterns (using
Pattern#quote)?– Marcono1234
Dec 28 '18 at 0:32