Fixing issue #22 by restructuring tracking of curly brace nesting.

Project.toml

@@ -1,7 +1,7 @@
 name = "BibParser"
 uuid = "13533e5b-e1c2-4e57-8cef-cac5e52f6474"
 authors = ["azzaare <jf@baffier.fr>"]
-version = "0.1.17"
+version = "0.1.18"
 
 [deps]
 BibInternal = "2027ae74-3657-4b95-ae00-e2f7d55c3e64"

src/bibtex.jl

@@ -401,30 +401,38 @@ function dump!(parser, char, ::Val{:field_in})
         parser.task = :field_inquote
     elseif char == '{'
         parser.task = :field_inbrace
+        parser.field.braces += 1
     elseif occursin(r"[0-9]", char)
         parser.task = :field_number
     elseif occursin(r"[a-zA-Z]", char)
         parser.task = :field_var
     end
 end
 
-is_dumped(parser, char, ::Val{:field_inbrace}) = char ∈ ['@', '{', '}']
+function is_dumped(parser, char, ::Val{:field_inbrace})
+    if char == '{'
+        parser.field.braces += 1
+        return false
+    elseif char == '}'
+        parser.field.braces -= 1
+        return (parser.field.braces == 0)
+    elseif char == '@'
+        return true
+    else
+        return false
+    end
+end
 function dump!(parser, char, ::Val{:field_inbrace})
     if char == '@'
         parser.task = :entry
+        parser.field.braces = 0
         e = BibTeXError(:incomplete_entry, get_acc(parser), parser.pos_start, parser.pos_end)
         push!(parser.errors, e)
-    elseif char == '}' && parser.field.braces == 0
+    elseif char == '}'
         parser.field.value *= get_acc(parser; from = 2)
         push!(parser.storage.fields, deepcopy(parser.field))
         parser.field.value = ""
         parser.task = :field_out
-    elseif char == '{'
-        parser.field.value *= get_acc(parser; from = 2) # * parser.field.value
-        parser.field.braces += 1
-    elseif char == '}'
-        parser.field.value *= get_acc(parser; from = 1, to = -1) # * parser.field.value
-        parser.field.braces -= 1
     end
 end