Regular expressions can be used to search for some unspecified or even invisible characters.
Searching with regular expressions is different from searching with wildcards. LibreOffice Writer only supports searching with regular expressions.
You can use regular expressions when you find and replace text in a document. For example, "s.n" finds "sun" and "son".
In thebox, type the search term and the regular expression(s) that you want to use in your search.
The regular expression for a single character is a period (.).
The regular expression for zero or more occurrences of the previous character is an asterisk. For example: "123*" finds "12" "123", and "1233".
The regular expression combination to search for zero or more occurrences of any character is a period and asterisk (.*).
The regular expression for the end of a paragraph is a dollar sign ($). The regular expression character combination for the start of a paragraph is a caret and a period (^.).
The regular expression for a tab character is \t.
ការស្វែងរកដោយប្រើកន្សោមធម្មតានឹងធ្វើការតែនៅក្នុងកថាខណ្ឌមួយប៉ុណ្ណោះ ។ ដើម្បីស្វែងរកដោយប្រើកន្សោមធម្មតានៅក្នុងកថាខណ្ឌដែលច្រើនជាងមួយ សូមធ្វើការស្វែងរកដាច់ដោយឡែកពីគ្នានៅក្នុងកថាខណ្ឌនីមួយៗ ។