Unexpected bracket expansion in the __prompts__ value

[vit-zikmund]

• Cookiecutter version: 2.4.0
• Template project url:
• Python version: 3.11.5
• Operating System: Linux

Description:

Unexpected bracket expansion in the __prompts__ value that eats values inside brackets that are directly followed by a lowercase letter 😮

What I've run:

Simply running cookiecutter . in a directory having just this little cookiecutter.json:

{
  "entry": null,
  "__prompts__": {
    "entry" : "prefix [bracket content] suffix"
  }
}

The prompt looks like this, with the [bracket content] left out (but only if it contains a lowercase letter):

$ cookiecutter .
  [1/1] prefix  suffix:

This is pretty wild, it seems some processing is taking place inside of the prompt value, eating what's in those brackets. Nothing struck me as obvious while skimming the original PR introducing human prompts.