add field mask

lib/submissions/generate_audit_trail.rb

@@ -366,6 +366,8 @@ module Submissions
 
               value = value.join(', ') if value.is_a?(Array)
 
+              value = TextUtils.mask_value(value) if field.dig('preferences', 'mask').present?
+
               composer.formatted_text_box([{ text: TextUtils.maybe_rtl_reverse(value.to_s.presence || 'n/a') }],
                                           text_align: value.to_s.match?(RTL_REGEXP) ? :right : :left,
                                           padding: [0, 0, 10, 0])

lib/submissions/generate_result_attachments.rb

@@ -391,6 +391,8 @@ module Submissions
           when ->(type) { type == 'cells' && !area['cell_w'].to_f.zero? }
             cell_width = area['cell_w'] * width
 
+            value = TextUtils.mask_value(value) if field.dig('preferences', 'mask').present?
+
             chars = TextUtils.maybe_rtl_reverse(value).chars
             chars = chars.reverse if field.dig('preferences', 'align') == 'right'
 
@@ -440,6 +442,8 @@ module Submissions
 
             value = TextUtils.maybe_rtl_reverse(Array.wrap(value).join(', '))
 
+            value = TextUtils.mask_value(value) if field.dig('preferences', 'mask').present?
+
             text_params = { font:, fill_color:, font_size: }
             text_params[:line_height] = text_params[:font_size] * 1.6 if font_name == COURIER_FONT
 

lib/text_utils.rb

@@ -2,6 +2,8 @@
 
 module TextUtils
   RTL_REGEXP = /[\p{Hebrew}\p{Arabic}]/
+  MASK_REGEXP = /[^\s\-_\[\]\(\)\+\?\.\,]/
+  MASK_SYMBOL = 'X'
 
   module_function
 
@@ -13,6 +15,10 @@ module TextUtils
     false
   end
 
+  def mask_value(text)
+    text.to_s.gsub(MASK_REGEXP, MASK_SYMBOL)
+  end
+
   def maybe_rtl_reverse(text)
     if text.match?(RTL_REGEXP)
       TwitterCldr::Shared::Bidi