refactor: extractors are even more elegant

__test__/test.md

@@ -1,9 +1,5 @@
 # Test Cases
 
-<NButton>
+<NButton> and <NButtonGroup>
 
-<NButtonGroup>
-
-<n-alert>
-
-<n-config-provider>
+<n-alert> and <n-config-provider>

src/extractor.ps1

@@ -1,16 +1,16 @@
-param(
-    [string] $FilePath
-)
+param( [string] $FilePath )
 
 Get-Content $FilePath | 
 Select-String -AllMatches '(?<=<)(N[A-Z]|n-)[A-Za-z-]*' | 
 ForEach-Object { $_.Matches.Value } |
 Sort-Object -Unique |
 ForEach-Object {
-    $_ -match '^N[A-Z]' ?
+    $_ -clike 'N*' ?
     $_ :
-    $_ -split '-' |
-    ForEach-Object { $_[0].ToString().ToUpper() + $_.Substring(1) } |
-    Join-String
+    (
+        $_ -split '-' |
+        ForEach-Object { (Get-Culture).TextInfo.ToTitleCase($_) } |
+        Join-String
+    )
 } |
 Sort-Object -Unique

src/extractor.sh

@@ -1,23 +1,11 @@
 FILE_PATH=${1:-"slides.md"}
 
 grep -o '<\(N[A-Z]\|n-\)[A-Za-z-]*' "$FILE_PATH" \
-  | sort | uniq \
+  | sort -u \
   | sed -E 's/^<//' \
-  | while read -r line; do
-    case "$line" in
-      N[A-Z]*)
-        echo "$line"
-        ;;
-      n-*)
-        echo "$line" \
-          | sed 's/-/ /g' \
-          | awk '{
-              for (i=1; i<=NF; i++)
-                $i=toupper(substr($i,1,1)) substr($i,2)
-                print $0
-            }' \
-          | sed 's/ //g'
-        ;;
-    esac
-  done \
-  | sort | uniq
+  | awk -F'-' '$1 == "n" {
+      OFS=""
+      for (i=1; i<=NF; i++)
+        $i=toupper(substr($i,1,1)) substr($i,2)
+    } 1' \
+  | sort -u