Regex Tester & Validator

Matches French phrases beginning with 'construit en' (built in/of) followed by construction-related terms: materials like parpaings (concrete blocks), siporex, or plaques; structural elements like ossature, charpente, or cloison; floor levels such as rez-de-chaussée, rdc, or R+1; and process descriptions like 'plusieurs étapes/phases' or 'N fois'. With global/multiline flags, it is useful for extracting construction method details from French real estate listings or building documents.