Editing Structured programming (section)

===Blocks===
[[Block (programming)|Blocks]] are used to enable groups of statements to be treated as if they were one statement. ''Block-structured'' languages have a syntax for enclosing structures in some formal way, such as an if-statement bracketed by <code>if..fi</code> as in [[ALGOL 68]], or a code section bracketed by <code>BEGIN..END</code>, as in [[PL/I]] and [[Pascal (programming language)|Pascal]], [[whitespace character|whitespace]] indentation as in [[Python (programming language)|Python]], or the curly braces <code>{...}</code> of [[C (programming language)|C]] and [[Curly brace family#Curly-bracket languages|many later languages]].