update

src/util.jl

@@ -771,35 +771,30 @@ end
 
 
 """
-    detect_keyword(keywords::AbstractVector{String}, text::String) -> Vector{Union{Nothing, String}}
+    detect_keyword(keywords::AbstractVector{String}, text::String) -> Dict{String, Integer}
 
-Detects if multiple keywords exist in the text in different case variations (lowercase, uppercase first letter, or all uppercase).
+Detects and counts occurrences of multiple keywords in the text in different case variations (lowercase, uppercase first letter, or all uppercase).
 
 # Arguments:
 - `keywords::AbstractVector{String}` Vector of keywords to search for
 - `text::String` The text to search in
 
 # Returns:
-- `Vector{Union{Nothing, String}}` Returns a vector containing the matched keyword variations if found, otherwise nothing for each keyword
+- `Dict{String, Integer}` Returns a dictionary mapping each keyword to its count in the text (0 if not found)
 
 # Examples:
   ```jldoctest
   julia> detect_keyword(["test", "error", "case"], "This is a Test case with ERRORS case")
-  2-element Vector{Union{Nothing, String}}:
-   "Test"
-   "ERRORS"
-   nothing
+  Dict{String, Integer}("test" => 1, "error" => 1, "case" => 2)
 
   julia> detect_keyword(["warning", "missing"], "Warning: data is complete")
-  2-element Vector{Union{Nothing, String}}:
-   "Warning"
-   nothing
-  ```
+  Dict{String, Integer}("warning" => 1, "missing" => 0)
+  
 
 # Signature
 """
-function detect_keyword(keywords::T, text::String)::Union{Nothing, Dict} where {T<:AbstractVector}
-  kw = Dict{String, Any}()
+function detect_keyword(keywords::T, text::String)::Dict{String, Integer} where {T<:AbstractVector}
+  kw = Dict{String, Integer}()
   splittext = string.(split(text, " "))
   # use for loop and detect_keyword function to get the exact variation of each keyword in the text then push to kw list
   for keyword in keywords
@@ -808,11 +803,13 @@ function detect_keyword(keywords::T, text::String)::Union{Nothing, Dict} where {
     if total != 0
       kw[keyword] = total
     else
-      kw[keyword] = nothing
+      kw[keyword] = 0
     end
   end
   return kw
 end
+
+
 """
     detect_keyword(keyword::String, text::String) -> Union{Nothing, String}