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* Float section headers to the top. Regularise whitespace between

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attributes.

svn path=/nixpkgs/trunk/; revision=6533
This commit is contained in:
Eelco Dolstra 2006-09-15 14:40:11 +00:00
parent abccd47cf5
commit 0dc7b90c20
1 changed files with 55 additions and 4 deletions
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59
maintainers/scripts/sort-attrs.str
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@ -35,6 +35,12 @@ rules
where
<not(split-fetch-keep(s))> xs
list-sep-end(s): xs -> [<conc> (before, [split]) | <list-sep-end(s)> after]
where
<split-fetch-keep(s)> xs => (before, split, after)
list-sep-end(s): xs -> [xs]
where
<not(split-fetch-keep(s))> xs
sort-attrs:
@ -52,7 +58,13 @@ rules
<attach-wsp> [ws1 | attrs] => withWSP;
<list-sep(starts-section)> withWSP => groups;
<length; debug> groups;
<map( \[x | xs] -> [x | <qsort(compare-attrs)> xs]\ )> groups => attrs';
<map({x', x'', x''', xs', starts, starts': \[x | xs] -> [x''' | xs']
where
<remove-section-start> x => (x', starts);
<map(regularise-empty-lines); qsort(compare-attrs)> [x' | xs] => [x'' | xs'];
<[] <+ \x -> ["\n\n\n" | x]\ > starts => starts';
<debug; prepend-layout; debug> (starts', x'') => x'''
\ })> groups => attrs';
<debug> "did it"
@ -60,8 +72,47 @@ rules
attach-wsp: [] -> []
starts-section: x@(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs), attr) -> x
where <implode-string; is-substring(!"###")> cs
strategies
starts-section =
?x@(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs), attr);
<implode-string; is-substring(!"###")> cs;
!x
rules
remove-section-start:
(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs), attr) ->
((appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs'), attr), starts)
where
!cs;
list-sep-end(?10); // separate into lines, keeping the \n
map(implode-string);
partition(where(is-substring(!"###"))) => (starts, rest);
<map(explode-string); concat> rest => cs'
regularise-empty-lines:
(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs), attr) ->
(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs''), attr)
where
// separate into lines, keeping the \n
// last whitespace is significant, keep
<list-sep-end(?10); split-init-last> cs => (init, last);
<debug; filter(where(fetch-elem(not(?10 <+ ?32)))); debug; concat> init => cs'; // remove whitespace-only lines
<concat> [<explode-string> "\n\n", cs', last] => cs''; // add one empty line
<debug> "A";
<debug> cs;
<debug> cs''
prepend-layout:
(text, (appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs), attr)) ->
(appl(prod([cf(layout())], cf(opt(layout())), no-attrs()), cs''), attr)
where
<implode-string> cs => cs';
<conc-strings; explode-string> (<concat-strings> text, cs') => cs''
compare-attrs:
@ -77,5 +128,5 @@ rules
strategies
main = io-wrap(
topdown(try(sort-attrs))
oncetd(sort-attrs)
)