by Marcel Garus ·1 minute read · available at mgar.us/imprint
Marcel Garus
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Most programming languages have the concept of a string, a representation of text in the program. In some languages, you can even integrate code expressions in strings:
"Hello, {name}!\n"
Special characters like { or \ indicate that the following characters are not part of the string literal itself, but should instead be interpreted in a different way – they are escape sequences.
This approach comes with some problems: Now, to actually use { or \ in the string, you have to escape those as well. This is okay, but makes strings with lots of special characters ugly. For example, to the regex that matches words ending with \ can be written like \w\\+, but inside a string it becomes even more bloated: