Regex to match if a specific string between curly braces - regex

Question

I have css as a String such as the following
.c8450 {
color: #000000; font-family: TsukuMin,TsukuMin,TsukuMin,TsukuMin; font-size: 18px; line-height: 1.6em;
}
.c8451 {
text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em;
}
.c8451 {
text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em; text-align-last:auto;
}
And I need to find a match between two curly braces if it contains a text-align property but not a text-align-last property, so I should be able to match the 2nd set of curly braces so that it returns
{text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em;}
I can find the matches between the curly braces with \{+([^}]+)}+ and find the text-indent property with text-align:(.*); and but I'm unsure of how to combine the two to match this specific condition.

Answer 1

try this
fun main() {
val text = """
.c8450 {
color: #000000; font-family: TsukuMin,TsukuMin,TsukuMin,TsukuMin; font-size: 18px; line-height: 1.6em;
}
.c8451 {
text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em;
}
.c8451 {
text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em; text-align-last:auto;
}
"""
val pattern = "\\{(.|\\r?\\n)*?\\}".toRegex()
val matches = pattern.findAll(text)
val list: MutableList<String> = mutableListOf()
matches.forEach { f ->
val value = f.value
val pe = "text-align".toRegex();
val pne = "text-align-last".toRegex()
if(pe.containsMatchIn(value) && !pne.containsMatchIn(value)){
list.add(value)
}
}
print(list)
}
output
[{
text-indent: -4em; text-align: left; min-width: 1.6em; border-top: solid transparent 4em;
}]