I have a content which is text mixed with json
blablabla bla bla
sdf
sdfsdfsdf {
"glossary": [{
"title": "example glossary",
"GlossDiv": {
"title": "S",
"GlossList": {
"GlossEntry": {
"ID": "SGML",
"SortAs": "SGML",
"GlossTerm": "Standard Generalized Markup Language",
"Acronym": "SGML",
"Abbrev": "ISO 8879:1986",
"GlossDef": {
"para": "A meta-markup language, used to create markup languages such as DocBook.",
"GlossSeeAlso": ["GML", "XML"]
},
"GlossSee": "markup"
}
}
}
},
{
"val":2
}]
} dd dfsdfsdf
bla blablablabla
I want get json from the string, so I use this regexp
\{(.|\s)+\}
It gives me (checked it on https://regex101.com/):
- Full match with my correctly found json
- Empty group
I don't understand what causes the empty group to appear