Add conditional formatting example for text equality

3 files changed, 38 insertions, 0 deletions

diff --git a/examples/README.md b/examples/README.md
index 5b1abdc2..f1ab1d5b 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -34,6 +34,7 @@ Usage:
 * [Color scale](conditional_formatting_color_scale_example.md)
 * [Data bar](conditional_formatting_data_bar_example.md)
 * [Icon set](conditional_formatting_icon_set_example.md)
+* [Text equal](conditional_formatting_text_equal_example.md)
 
 ### Charts
 
diff --git a/examples/conditional_formatting_text_equal_example.md b/examples/conditional_formatting_text_equal_example.md
new file mode 100644
index 00000000..0d7bd8d7
--- /dev/null
+++ b/examples/conditional_formatting_text_equal_example.md
@@ -0,0 +1,37 @@
+## Description
+
+Conditional format example: Text equal
+
+1. You must specify `:containsText` for both type and operator.
+2. You must craft a formula to match what you are looking for. The formula needs to reference the top-left cell of the range (the cell reference will be dynamically adapted when the formula gets evaluated for the other cells in the range).
+3. The formula may turn out to be vendor specific. You will want to test extensively if interoperability beyond excel is a concern.
+
+## Code
+
+```ruby
+require 'axlsx'
+
+p = Axlsx::Package.new
+wb = p.workbook
+
+s = wb.styles
+profit = s.add_style bg_color: 'FF428751', type: :dxf
+
+wb.add_worksheet(name: 'Text Matching Conditional') do |sheet|
+  sheet.add_row ["Loss", "Loss", "Profit", "Loss", "Profit", "Loss", "Profit", "Loss", "Profit", "Profit"]
+
+  # Highlight all the cells containing the text "Profit"
+  sheet.add_conditional_formatting('A1:J1',
+    type: :containsText,
+    operator: :containsText,
+    formula: 'NOT(ISERROR(SEARCH("Profit",A1)))',
+    dxfId: profit,
+    priority: 1)
+end
+
+p.serialize 'conditional_formatting_text_equal_example.xlsx'
+```
+
+## Output
+
+![Output](images/conditional_formatting_text_equal_example.png "Output")
diff --git a/examples/images/conditional_formatting_text_equal_example.png b/examples/images/conditional_formatting_text_equal_example.png
new file mode 100644
index 00000000..60cfaf92
--- /dev/null
+++ b/examples/images/conditional_formatting_text_equal_example.png