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.filter(..) almost ready, still needs more testing..

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2018-08-24 14:39:41 +03:00
parent cb16f000f7
commit 1edeb867fa
1 changed files with 33 additions and 26 deletions
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diff.js
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@ -2139,18 +2139,22 @@ var DiffPrototype = {
// '**' | [ .. ],
// ...
// ]
// XXX when OF(..) is ready, replace '**' with OF(ANY, ANY)...
var path = (filter instanceof Array ? filter : [filter])
// '*' -> ANY
.map(function(e){
return e == '*' ? ANY : e })
// remove consecutive repeating '**'
.filter(function(e, i, lst){
return e == '**' && lst[i-1] != '**' || true })
// split to array sections at '**'...
// XXX when OF(..) is ready, replace '**' with OF(ANY, ANY)...
// XXX need to remove sets of consecutive '**'...
.reduce(function(res, e){
var n = res.length-1
e == '**' ? res.push(2)
: (res.length == 0 || res[n] == '**') ? res.push([e])
: res[n].push(e)
e == '**' ?
res.push('**')
: (res.length == 0 || res[n] == '**') ?
res.push([e])
: res[n].push(e)
return res
}, [])
@ -2160,27 +2164,30 @@ var DiffPrototype = {
return l + (e instanceof Array ? e.length : 0) }, 0)
// XXX account for pattern/path end...
var test = function(p, pattern, path){
return p == '**' ?
// compare next pattern section and path...
(cmp(pattern[0], path.slice(0, next.length))
// next pattern/path section
// XXX need to stop if we run put of path or pattern...
&& test(pattern[1],
pattern.slice(2),
path.slice(next.length)))
// shift path and test...
// XXX need to stop if we run put of path...
|| (test(p,
pattern,
path.slice(1))
// shift to next pattern section...
// XXX need to stop if we run put of pattern...
&& test(pattern[1],
pattern.slice(2),
path.slice(pattern[0].length)))
: cmp(pattern[0], path)
}
var test = function(path, pattern){
return (
// end of path/pattern...
path.length == 0 && pattern.length == 0 ?
true
// consumed pattern with path left over -> fail...
: (path.length > 0 && pattern.length == 0)
|| (path.length == 0 && pattern.length > 1)?
false
// '**' -> test, skip elem and repeat...
: pattern[0] == '**' ?
(test(path, pattern.slice(1))
|| test(path.slice(1), pattern))
// compare sections...
: (cmp(
path.slice(0, pattern[0].length),
pattern[0])
// test next section...
&& test(
path.slice(pattern[0].length),
pattern.slice(1)))) }
// XXX Q: should we ignore the last element of the path???
filter = function(change, i, lst){