I want to create a build system for Sublime Text 3 that will automatically run on any file that ends in ".mmd". I understand from the unofficial documentation that the "selector" option provides this feature; however, I'm not able to get it to work properly. Below is my current build system (I'm doing this for use with Scriptorium). The commented out lines show other arguments I've tried to pass to "selector".
{
"cmd": ["scriptorium", "build"],
"file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
"selector": "source.markdown.multimarkdown",
// "selector": "source.multimarkdown",
// "selector": "source.mmd",
}
If I manually select it as the build system, it works as expected, but if I try building using the Automatic build system, it says no build system available. Can anyone tell me what I'm doing wrong?
Under View-> Syntax, .mmd files open under Markdown -> MultiMarkdown, if that helps.