c# - Regex for all uppercase words until lowercases -

i have sentence like:

name: john j. smith sometag: 

how grab john j smith part?

sometag not same more all-capitalized words until 1 not.

update

"[a-z. ]*" returns john j. smith s
"[a-z. ]*\b" returns nothing as
"\b[a-z. ]*\b"

try this

[a-z. ]*\b 

let me know how goes

you can be more complete one

[\p{lu}\p{m}\p{z}\p{n}\p{p}\p{s}]*\b 

but mouthful

match single character present in list below «[\p{lu}\p{m}\p{z}\p{n}\p{p}\p{s}]*»    between 0 , unlimited times, many times possible, giving needed (greedy) «*»    character unicode property “uppercase letter” (an uppercase letter has lowercase variant) «\p{lu}»    character unicode property “mark” (a character intended combined character (e.g. accents, umlauts, enclosing boxes, etc.)) «\p{m}»    character unicode property “separator” (any kind of whitespace or invisible separator) «\p{z}»    character unicode property “number” (any kind of numeric character in script) «\p{n}»    character unicode property “punctuation” (any kind of punctuation character) «\p{p}»    character unicode property “symbol” (math symbols, currency signs, dingbats, box-drawing characters, etc.) «\p{s}» assert position @ word boundary «\b» 

or shorter

\p{ll}*\b 

update 1

after edit use this

name: (\p{ll}*)[ ] 

the desired match in group 1. note added [ ] in end signal single space. can convert character class space if want.

in c# becomes

string resultstring = null; try {     regex regexobj = new regex(@"name: (\p{ll}*)[ ]");     resultstring = regexobj.match(subjectstring).groups[1].value; } catch (argumentexception ex) {     // syntax error in regular expression }