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Curly brackets parse error? #5571

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berrylium0078 opened this issue Nov 3, 2024 · 3 comments · May be fixed by #5618
Open
5 tasks done

Curly brackets parse error? #5571

berrylium0078 opened this issue Nov 3, 2024 · 3 comments · May be fixed by #5618
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bug Something isn't working

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@berrylium0078
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Check List

  • I have already read Docs page & Troubleshooting page.
  • I have already searched existing issues and they are not help to me.
  • I examined error or warning messages and it's difficult to solve.
  • I am using the latest version of Hexo. (run hexo version to check)
  • My Node.js is matched the required version.

Expected behavior

---
title: Hello World
---

123

`{#}`

234

`{{x}}`

Should look like

123

{#}

234

{{x}}

Actual behavior

屏幕截图_20241103_180328

How to reproduce?

just

hexo init blog
cd blog

and edit source/_posts/hello-world.md

then

hexo s

Is the problem still there under Safe mode?

Yes!

Your Node.js & npm version

v23.1.0
10.9.0

Your Hexo and Plugin version

(node:24317) ExperimentalWarning: CommonJS module /usr/lib/node_modules/npm/node_modules/debug/src/node.js is loading ES Module /usr/lib/node_modules/npm/node_modules/supports-color/index.js using require().
Support for loading ES Module in require() is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
[email protected] /home/netro/Documents/blog
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
└── [email protected]

Your package.json

{
  "name": "hexo-site",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "build": "hexo generate",
    "clean": "hexo clean",
    "deploy": "hexo deploy",
    "server": "hexo server"
  },
  "hexo": {
    "version": "7.3.0"
  },
  "dependencies": {
    "hexo": "^7.3.0",
    "hexo-deployer-git": "^4.0.0",
    "hexo-generator-archive": "^2.0.0",
    "hexo-generator-category": "^2.0.0",
    "hexo-generator-index": "^4.0.0",
    "hexo-generator-tag": "^2.0.0",
    "hexo-renderer-ejs": "^2.0.0",
    "hexo-renderer-markdown-it-plus": "^1.0.6",
    "hexo-renderer-stylus": "^3.0.1",
    "hexo-server": "^3.0.0",
    "hexo-theme-landscape": "^1.0.0",
    "hexo-theme-redefine": "^2.7.3",
    "katex": "^0.16.11",
    "markdown-it": "^14.1.0",
    "markdown-it-attrs": "^4.2.0",
    "markdown-it-imsize": "^2.0.1",
    "markdown-it-mathjax3": "^4.3.2",
    "markdown-it-task-lists": "^2.1.1",
    "markdown-it-toc": "^1.1.0"
  }
}

Your site's _config.yml (Optional)

No response

Others

Changing the second line to { #} would fix the problem. What a weird bug!

p.s. I encountered this bug when trying to use mathjax \def and a note block in the same file.

For example:

$\def\sqr#1{#1^2}$

{% note danger %}
danger note
{% endnote %}

Adding a space between the { and # also works in this scenario.
@uiolee uiolee added the bug Something isn't working label Nov 3, 2024
@uiolee
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uiolee commented Nov 3, 2024 •
edited
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Similar to #5301, {# is considered a comment in nunjucks and is discarded.

#5301 (comment)

@isHarryh
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isHarryh commented Jan 3, 2025 •
edited
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I also encountered the similar problem. But hexo raised an ERROR related to Nunjucks:

Unhandled rejection Nunjucks Error: _posts/XXX.md [Line xxx, Column xxx] expected variable end

The line caused this error is a MathJax expression which has double curly brackets:

s = \int_{t_1}^{t_2} \sqrt{{\Psi'}^2(t) \cdot {\Phi'}^2(t)} \text d t
                          👆 here

which should be rendered like this:

image

When I separate the double curly brackets, everything goes well.

s = \int_{t_1}^{t_2} \sqrt{ {\Psi'}^2(t) \cdot {\Phi'}^2(t)} \text d t
                          👆 here

Here comes my stack trace:

    at formatNunjucksError (F:\Repos\Blog\node_modules\hexo\lib\extend\tag.ts:189:13)
    at F:\Repos\Blog\node_modules\hexo\lib\extend\tag.ts:280:29
    at tryCatcher (F:\Repos\Blog\node_modules\bluebird\js\release\util.js:16:23)
    at Promise._settlePromiseFromHandler (F:\Repos\Blog\node_modules\bluebird\js\release\promise.js:547:31)
    at Promise._settlePromise (F:\Repos\Blog\node_modules\bluebird\js\release\promise.js:604:18)
    at Promise._settlePromise0 (F:\Repos\Blog\node_modules\bluebird\js\release\promise.js:649:10)
    at Promise._settlePromises (F:\Repos\Blog\node_modules\bluebird\js\release\promise.js:725:18)
    at _drainQueueStep (F:\Repos\Blog\node_modules\bluebird\js\release\async.js:93:12)
    at _drainQueue (F:\Repos\Blog\node_modules\bluebird\js\release\async.js:86:9)
    at Async._drainQueues (F:\Repos\Blog\node_modules\bluebird\js\release\async.js:102:5)
    at Immediate.Async.drainQueues (F:\Repos\Blog\node_modules\bluebird\js\release\async.js:15:14)
    at processImmediate (node:internal/timers:491:21)

@D-Sketon D-Sketon linked a pull request Jan 18, 2025 that will close this issue
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@D-Sketon
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s = \int_{t_1}^{t_2} \sqrt{{\Psi'}^2(t) \cdot {\Phi'}^2(t)} \text d t

You should wrap it in a {% raw %} tag

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fix(escapeAllSwigTags): backtrack when tag is incomplete D-Sketon/hexo
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@uiolee @D-Sketon @isHarryh @berrylium0078