[Bug] Frontmatter: endings with '...' fails to be parsed

[GuillaumeHM]

What version of Cosma are you using?

v 2.4.0
node: 18.19.0

On which operating system(s) did you observe the bug?

• macOS
• Windows
• Linux

What version of the operating system are you on?

Debian Bookworm

Actions leading to the bug

When ending the Frontmatter by three dots like specified in the Zettlr's doc (https://docs.zettlr.com/fr/core/yaml-frontmatter/), modelizing with Cosma ends in a crash.

Bug description

$ cosma modelize
[Cosma v.2.4.0]  /home/***/Documents/cosma-test/config.yml
Building cosmoscope… (source type: directory)
../***/20240316224025.md could not have its frontmatter parsed.
/usr/local/lib/node_modules/@graphlab-fr/cosma/core/models/cosmoscope.js:148
      throw new SyntaxError('YAML parse error on ' + filePath);
            ^

SyntaxError: YAML parse error on ../***/20240316224025.md
    at Cosmoscope.getDataFromYamlFrontMatter (/usr/local/lib/node_modules/@graphlab-fr/cosma/core/models/cosmoscope.js:148:13)
    at /usr/local/lib/node_modules/@graphlab-fr/cosma/core/models/cosmoscope.js:120:33
    at Array.map (<anonymous>)
    at Cosmoscope.getFromPathFiles (/usr/local/lib/node_modules/@graphlab-fr/cosma/core/models/cosmoscope.js:116:8)
    at module.exports (/usr/local/lib/node_modules/@graphlab-fr/cosma/controllers/modelize.js:85:32)
    at Command.<anonymous> (/usr/local/lib/node_modules/@graphlab-fr/cosma/app.js:102:38)
    at Command.listener [as _actionHandler] (/usr/local/lib/node_modules/@graphlab-fr/cosma/node_modules/commander/lib/command.js:488:17)
    at /usr/local/lib/node_modules/@graphlab-fr/cosma/node_modules/commander/lib/command.js:1227:65
    at Command._chainOrCall (/usr/local/lib/node_modules/@graphlab-fr/cosma/node_modules/commander/lib/command.js:1144:12)
    at Command._parseCommand (/usr/local/lib/node_modules/@graphlab-fr/cosma/node_modules/commander/lib/command.js:1227:27)

Node.js v18.19.0

Additional information

When replacing the three dots by '---', it works.

[infologie]

@GuillaumeHM Thank your for reporting this. Indeed we should support either --- or .... It may be a simple fix. @Myllaume, can we just tweak the parsing, perhaps here:

cosma/core/utils/yamlfrontmatter.js

Line 4 in e12e83f

const regex = /^(-{3}(?:\n|\r)([\w\W]+?)(?:\n|\r)-{3})?([\w\W]*)*/;

[clrh]

I have files wich begin with "```" or ">" and I got the same error.