Re: [PATCH] userdiff: add support for Fountain documents

[Junio C Hamano <gitster@pobox.com>]

Zoë Blade <zoe@bytenoise.co.uk> writes:

> Add support for Fountain, a plain text screenplay format.  Git
> facilitates not just programming specifically, but creative writing
> in general, so it makes sense to also support other plain text
> documents besides source code.
>
> In the structure of a screenplay specifically, scenes are roughly
> analogous to functions, in the sense that it makes your job easier
> if you can see which ones were changed in a given range of patches.
>
> More information about the Fountain format can be found on its
> official website, at http://fountain.io .
>
> Signed-off-by: Zoë Blade <zoe@bytenoise.co.uk>
> ---

The test looks a bit too brief (i.e. there is only one obvious
candidate to be picked as the funcname header in the input, so it is
very hard to break the expectation of the test even when the code or
pattern is modified incorrectly), but it would do for now.
Everything else looks trivially OK ;-)

Thanks, will queue.


>  Documentation/gitattributes.txt | 2 ++
>  t/t4018-diff-funcname.sh        | 1 +
>  t/t4018/fountain-scene          | 4 ++++
>  userdiff.c                      | 2 ++
>  4 files changed, 9 insertions(+)
>  create mode 100644 t/t4018/fountain-scene
>
> diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
> index 81fe586..e3b1de8 100644
> --- a/Documentation/gitattributes.txt
> +++ b/Documentation/gitattributes.txt
> @@ -527,6 +527,8 @@ patterns are available:
>  
>  - `fortran` suitable for source code in the Fortran language.
>  
> +- `fountain` suitable for Fountain documents.
> +
>  - `html` suitable for HTML/XHTML documents.
>  
>  - `java` suitable for source code in the Java language.
> diff --git a/t/t4018-diff-funcname.sh b/t/t4018-diff-funcname.sh
> index 1dbaa38..67373dc 100755
> --- a/t/t4018-diff-funcname.sh
> +++ b/t/t4018-diff-funcname.sh
> @@ -31,6 +31,7 @@ diffpatterns="
>  	cpp
>  	csharp
>  	fortran
> +	fountain
>  	html
>  	java
>  	matlab
> diff --git a/t/t4018/fountain-scene b/t/t4018/fountain-scene
> new file mode 100644
> index 0000000..6b3257d
> --- /dev/null
> +++ b/t/t4018/fountain-scene
> @@ -0,0 +1,4 @@
> +EXT. STREET RIGHT OUTSIDE - DAY
> +
> +CHARACTER
> +You didn't say the magic phrase, "ChangeMe".
> diff --git a/userdiff.c b/userdiff.c
> index 2ccbee5..5316b48 100644
> --- a/userdiff.c
> +++ b/userdiff.c
> @@ -35,6 +35,8 @@ IPATTERN("fortran",
>  	  * they would have been matched above as a variable anyway. */
>  	 "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?"
>  	 "|//|\\*\\*|::|[/<>=]="),
> +PATTERNS("fountain", "^((INT|EST|EXT)?\\.[A-Z0-9' -]+)$",
> +	 "[^ \t-]+"),
>  PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$",
>  	 "[^<>= \t]+"),
>  PATTERNS("java",