Some glitches: wikilink in code block, post not found, plugin load failed

[afterglowu]

It's a useful plugin and helps me a lot. I might never think of using Hexo's tag plugin {% post_link %} to implement such function.

I found 3 glitches while using this plugin, shown as below.

1. Wikilink in inline code and code blocks

The [[knapsack]] inside inline code and fenced code block are also converted to {% post_link %} by this plugin.

2. Post not found

The path seperator of Windows is '\', but tag plugin {% post_link %} requires '/', so I get a "Post not found" error:

Add the following code can fix this, but I'm not sure whether it's the "standard" way or not. (I never use js before, I'm new to it.)

if (path.sep === "\\") {
    each = each.replace(new RegExp("\\" + path.sep, "g"), "/");
}

3. Plugin load failed

Currently this plugin only works properly when I launch hexo s (or hexo g) in my hexo project's root directory.
If I launch hexo s in a sub directory (e.g. the source folder), then errors will occur:

PS D:\Sync\workspace\mlog\source> hexo s
INFO  Validating config
ERROR Plugin load failed: hexo-backlink
Error: ENOENT: no such file or directory, scandir 'D:\Sync\workspace\mlog\source\source\_posts'
    at _readAndFilterDirSync (D:\Sync\workspace\mlog\node_modules\hexo-fs\lib\fs.js:120:13)
    at _listDirSyncWalker (D:\Sync\workspace\mlog\node_modules\hexo-fs\lib\fs.js:173:22)
    at Object.listDirSync (D:\Sync\workspace\mlog\node_modules\hexo-fs\lib\fs.js:189:3)
    at D:\Sync\workspace\mlog\node_modules\hexo-backlink\index.js:7:4
    at D:\Sync\workspace\mlog\node_modules\hexo\lib\hexo\index.js:317:14
    at Promise._settlePromiseFromHandler (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\promise.js:547:31)
    at Promise._settlePromise (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\promise.js:604:18)
    at Promise._settlePromises (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\promise.js:729:18)
    at _drainQueueStep (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\async.js:93:12)
    at _drainQueue (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\async.js:86:9)
    at Async._drainQueues (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (D:\Sync\workspace\mlog\node_modules\bluebird\js\release\async.js:15:14)
    at processImmediate (internal/timers.js:461:21)

To fix it, change the way of construct base_dir in the plugin's code:

// index.js

// const base_dir = path.join(process.cwd(), "source", "_posts");
const base_dir = path.join(hexo.source_dir, "_posts");

[Cyrusky]

Thx for your issue. Can you start a PR? I will merge it in to main.

[afterglowu]

I have started PR #12 , please check it.

P.S. I don't know how to fix the first problem (wikilink inside inline code and code block), thus this PR only contain the code of the second and the third.