pipeline script parsing

[gbook]

The parser is not handling certain bash commands correctly

• If a hash # exists in a command and is valid, the parser will assume it is a comment, and separate it
• Lines ending in double parentheses () cannot have an output redirect, and require a {NOLOG} variable
• If a hash is the first character of a line, any space before the hash may delete the comment line
• Comment lines should have all tabs converted to spaces

[gbook]

Fixed