`syntax`

The structure grammar cannot parse the line.

compile error, shown by synod check.

This is the error for text that is not written the way Synod spells it. Examples are a number such as .5 or +1, x-1 without spaces, a comma outside list items, a continuation line that follows no block, a #todo comment, a nested use, and a bad line in synod.mod.

The formatter cannot fix these, because it cannot tell what you meant. Write the number, text or line the way spec/01 and spec/02 describe it.

Example

Check this program to see the diagnostic.

# package p
define Half
  result .5

Diagnostic

p/p.synod:3:10: error[syntax]: ".5" is not a number
  hint: write 0.5

Fix

Write a digit before the point.

# package p
define Half
  result 0.5