Review String methods: redefine lchomp as delete_prefix alias

- Redefine String#lchomp/lchomp! as aliases for delete_prefix/delete_prefix!
- 72 String methods reviewed; all others kept as-is
- No deprecations needed — unique text utilities throughout

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: trans

HISTORY.md

@@ -100,6 +100,7 @@ Changes:
   * Deprecate `Enumerable#map_with_index` (use `Enumerable#map.with_index`).
   * Deprecate `Enumerable#mash` (use `Enumerable#graph` instead).
   * Deprecate `Enumerable#uniq_by` (use `Enumerable#uniq(&block)`, Ruby 1.9.2+).
+  * Redefine `String#lchomp` / `#lchomp!` as aliases for `delete_prefix` / `delete_prefix!`.
   * Fix dead requires for removed `kernel/singleton_class` in Proc and Kernel.
   * Remove misplaced `applique/file_helpers` from core (test infrastructure).
   * Drop unused `test_files` directive from gemspec. (PR#301)

lib/core/facets/string/lchomp.rb

@@ -1,33 +1,26 @@
 class String
 
-  # Left chomp.
+  # Left chomp. Alias for #delete_prefix.
   #
   #   "help".lchomp("h")  #=> "elp"
   #   "help".lchomp("k")  #=> "help"
   #
   # CREDIT: Trans
 
   def lchomp(match)
-    if index(match) == 0
-      self[match.size..-1]
-    else
-      self.dup
-    end
+    delete_prefix(match)
   end
 
-  # In-place left chomp.
+  # In-place left chomp. Alias for #delete_prefix!.
   #
-  #   "help".lchomp("h")  #=> "elp"
-  #   "help".lchomp("k")  #=> "help"
+  #   s = "help"
+  #   s.lchomp!("h")  #=> "elp"
+  #   s                #=> "elp"
   #
   # CREDIT: Trans
 
   def lchomp!(match)
-    if index(match) == 0
-      self[0...match.size] = ''
-      self
-    end
+    delete_prefix!(match)
   end
 
 end
-