Request: Make matching text configurable

[bagobones]

I am currently migrating from Overviewer to BlueMap and my users have populated the world with a lot of point of interest / marker signs already and I don't have a way to bulk update them.

Overviewer is dead now and has a fairly large user base, would be make for a nice migration path.

Would be nice to have a config file to set the match text to anything like "--POI--" and for it not to be strict about what lines the matching text is on.

[cbs228]

I am another Overviewer user looking for a migration path.

Overviewer generates markers by providing all signs—or entities in general—to a user-defined filter function. If the filter function outputs some text, that text becomes a marker. User-defined functions are very easy in Python but hard in Java unless you bundle some kind of scripting interpreter like Groovy.

As a lightweight/easier alternative, how about a configurable regular expression? The Pattern could use named fields to output both an icon and some text separately.

Here is my particular use-case. Signs look like this:

![home] Some
place where I
like to sleep

which might translate to something like:

{
  "icon": "home.png",
  "text": "Some place where I like to sleep"
}

Configurable options might need to be:

• A regexp Pattern to extract the icon and the name
• A filename suffix (.png) or some kind of text substitution macro for the icon
• Which sign lines to use as the marker text
• How to join multiple lines together (newlines, spaces, etc.)