A string with a superscript char gets parsed into two strings

[ruinunes]

If a string contains a superscript char like m², then the PDF::Inspector::Text.analyze(some_pdf).strings array will produce 2 strings:

m
²

instead of a single array entry with m²

[gettalong]

This will depend on how to superscript was set: If it was set using the superscript character "²", then it should be in one string. However, normally superscript is produced manually by using a smaller font and offsetting the baseline. In the latter case two strings would be returned.

[ruinunes]

@gettalong

If it was set using the superscript character "²", then it should be in one string

Unlike what you are saying above, my case uses the superscript character to display a prawn document with the string m²- for denominating square meters -, using text 'm²'. This produces 2 strings in PDF::Inspector. The size of the strings array is 2. If you can double check, pls.

[pointlessone]

Another option might be font fallback. If your current font doesn't have a glyph for supperscript character Prawn might switch to fallback font. Font switch produces another string in PDF.

Since we don't have reproducible example we can only guess.