jebbs/data-extracter-extesion
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fix & optimize

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jebbs
2018-09-27 14:42:08 +08:00
parent 1148ae79d6
commit e9270e22b2
5 changed files with 112 additions and 102 deletions
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87
scripts/tools.js
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@ -1,3 +1,44 @@
const signitures = `
# DataExtracter Help
----------------------------
## Signitures:
----------------------------
function extract(itemsSelector:string, fieldSelectors:string[])
function extract(itemsSelector:string, fieldSelectors:string[], url:string, from:number, to:number, interval:number)
function extract(itemsSelector:string, fieldSelectors:string, url:string, pages:number[])
function extract(itemsSelector:string, fieldSelectors:string[], urls:string[])
function extract(itemsSelector:string, fieldSelectors:string[], urls:ExractResult)
## Examples:
----------------------------
### Extract current page
extract(".list-item", ["a.title", "p.content"])
### Extract multiple pages (1-10, interval 1)
extract(".list-item", ["a.title", "p.content"],"http://sample.com/?pn=\${page}", 1, 10, 1)
### Extract multiple urls (list)
extract(".list-item", ["a.title", "p.content"],["http://sample.com/abc","http://sample.com/xyz"])
### Extract specified pages (1,3,5)
extract(".list-item", ["a.title", "p.content"], "http://sample.com/?pn=\${page}", [1, 3, 5])
## Advanced Examples:
----------------------------
### Extract link text and target (use 'selector@attribute')
extract('.list-item', ['a.title', 'a.title@href'])
### Collect links from page(s) & Extract data of each link
>> (Available only in console of extension background page)
extract('body',["a.title", "p.content"], await getData('.list-item', ['.item a@href'],["http://sample.com/abc"]))
`.trim();
function saveFile(data, mimeType, fileName) {
fileName = fileName || document.title || "result";
var blob;
@ -28,4 +69,50 @@ function saveFile(data, mimeType, fileName) {
} else {
location.href = url
}
}
function testArgs(...args) {
switch (args.length) {
case 0, 1:
return false;
case 2:
return args[0] && args[1] &&
(typeof args[0] == "string") &&
(args[1] instanceof Array) &&
testArrayVals(args[1], v => typeof v == "string");
case 3:
return args[0] && args[1] &&
typeof args[0] == "string" &&
args[1] instanceof Array &&
testArrayVals(args[1], v => typeof v == "string") &&
(
(
args[2] instanceof Array &&
testArrayVals(args[2], v => typeof v == "string")
) || (
args[2] instanceof ExractResult
)
);
case 4:
return args[0] && args[1] &&
typeof args[0] == "string" &&
args[1] instanceof Array &&
testArrayVals(args[1], v => typeof v == "string") &&
typeof args[2] == "string" &&
args[3] instanceof Array &&
testArrayVals(args[3], v => typeof v == "number");
case 6:
return args[0] && args[1] &&
typeof args[0] == "string" &&
args[1] instanceof Array &&
testArrayVals(args[1], v => typeof v == "string") &&
typeof args[2] == "string" &&
!isNaN(args[3]) && !isNaN(args[4]) && !isNaN(args[5]);
default:
return false;
}
function testArrayVals(arr, tester) {
return arr.reduce((p, c) => p && tester(c), true);
}
}