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func pyreprbImpl(s: string): string {....raises: [], tags: [], forbids: [].}

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func pyreprImpl(s: string): string {....raises: [], tags: [], forbids: [].}

Python's repr but returns Nim's string.

nim's Escape Char feature can be enabled via -d:useNimCharEsc, in which 'e' (i.e.'x1B' in Nim) will be replaced by "\e"

Example:

# NOTE: string literal's `repr` is `system.repr`, as following. 
assert repr("\"") == "\"\\\"\""   # string literal of "\""
# use pyrepr for any StringLike and returns a PyStr
assert pyreprImpl("\"") == "'\"'"

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