Create sed regular expressions that satisify the following • No more than one sp

Question

Create sed regular expressions that satisify the following

• No more than one space between tokens.
• No trailing whitespace after a line.
• Binary operators should always surrounded by a single space on either side (including assignment and Boolean). Only the following operators must be accounted for: +, -, *, /, =, ==, <=, >=, <, >.
• Conditions should not have whitespace immediately inside of the parentheses.
• The program should not modify spaces which are leading, expanded tabs.
• Comments should be left alone. You may assume comments (single- and multi-line) will not appear on lines with source code

Explanation / Answer

Ans 1-sed -E 's/ s[a-zA-Z]s//g'

Ans 2- sed -E 's/.s /. /g'

Ans 3- sed -E 's/[ +, -, *, /, =, ==, <=, >=, <, >]s/
/g'

Ans 4- sed -E 's/{s/{/g'

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