How to Effectively Handle Long String Literals in Go?

Best Practices for Handling Long String Literals in Go

When working with extended text strings in Go, the choice between raw quotes or concatenated quotes can arise. Both techniques extend beyond the default single or double quotation marks for constructing strings.

Raw Quotes

Raw quotes allow for lines spanning multiple physical lines without the need for backslash () escapes. However, preceding whitespaces included in the raw string literal will be part of the resulting string, potentially leading to formatting issues.

Concatenated Quotes

Concatenating multiple quotes requires adding the plus ( ) operator between each fragment. While it allows for splitting the string across lines, it may appear somewhat cluttered.

Idiomatic Approach

A common and idiomatic way to handle long strings in Go is to use backticks (`) as raw string delimiters and concatenate the fragments within a single string using the plus ( ) operator. This approach combines the benefits of both raw quotes and concatenated quotes.

Example:

q := `UPDATE mytable SET (I, Have, Lots, Of, Fields) = ` +
     `('suchalongvalue', ` +
     `'thisislongaswell', ` +
     `'wowsolong', ` +
     `loooooooooooooooooooooooooong')`

db.Exec(q)

This approach maintains string integrity while keeping the code readable. The use of backticks as delimiters prevents the need for backslash escapes while allowing multiple lines for clarity.

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