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Lower cased and dashed strings

As I have to generate big fixtures files, I wanted to find a way to format input data the way described by start and end files. Especially the lower-cased-and-dashed ids Not so good to find a pure Vim way, that's why I submit this challenge ;)

Start file

Lôrem Ipsum
Dolor.eros
Auctor: eros (elémentum)
Tincïdunt, âc

End file

lorem-ipsum:
    name: "Lôrem Ipsum"
dolor-eros:
    name: "Dolor.eros"
auctor-eros-elementum:
    name: "Auctor: eros (elémentum)"
tincidunt-ac:
    name: "Tincïdunt, âc"

View Diff

1,4c1,8
< Lôrem Ipsum
< Dolor.eros
< Auctor: eros (elémentum)
< Tincïdunt, âc
---
> lorem-ipsum:
>     name: "Lôrem Ipsum"
> dolor-eros:
>     name: "Dolor.eros"
> auctor-eros-elementum:
>     name: "Auctor: eros (elémentum)"
> tincidunt-ac:
>     name: "Tincïdunt, âc"

Solutions by @OlivierSwift:

Created by: @tophsic Tweet

20 active golfers, 49 entries

Solutions by @OlivierSwift:

101

#17 - Olivier Debon / @OlivierSwift

09/17/2015 at 08:39AM

103

#>17 - Olivier Debon / @OlivierSwift

09/17/2015 at 07:53AM

109

#>20 - Olivier Debon / @OlivierSwift

09/17/2015 at 07:30AM