Procs

proc wrap(text: string; width = 70): string {.
    ...raises: [Exception, ValueError, OSError, IOError, EOFError, KeyError],
    tags: [RootEffect].}

proc fill(text: string; width = 70): string {.
    ...raises: [Exception, ValueError, OSError, IOError, EOFError, KeyError],
    tags: [RootEffect].}

proc dedent(text: string): string {....raises: [Exception, ValueError, OSError,
    IOError, EOFError, KeyError], tags: [RootEffect].}

proc indent(text, prefix: string): string {.
    ...raises: [Exception, ValueError, OSError, IOError, EOFError, KeyError],
    tags: [RootEffect].}

proc indent(text: string): string {....raises: [Exception, ValueError, OSError,
    IOError, EOFError, KeyError], tags: [RootEffect].}

proc shorten(text: string; width: int): string {.
    ...raises: [Exception, ValueError, OSError, IOError, EOFError, KeyError],
    tags: [RootEffect].}