**Question:** Why can't I compile when a [Source Code Filter file](https://nim-lang.org/docs/filters.html) has more than 32.748 chars in a single line?
I have chart from draw.io inlined with HTML in one of my *.tmpl files ( _to-be nimf_ ). This has worked in 0.19.*, but breaks in 0.20.0. The problem is, when the length of a single line is equal to or longer than 32.749 chars. When breaking the line into multiple lines it compiles fine. After finding the error above, I also discovered, that a string had a maximum of 32.752: * When a string length is >= 32.754 RangeError is returned. * When a string length is == 32.753 OverFlow is returned. * When a string length is =< 32.752 it compiles fine. The 32.752 chars is corresponding to the char-length + newline chars in my *.tmpl file. Is 32.752 the maximum length of a string? The compiling breaks even though the line is commented out (#). Try this [Play Nim xi](http://ix.io/1Lnj/nim) * * * **Error messages in the *.tmpl file** _I have a gist which can be used to test it. It has a tmpl code with 32.750 chars (https: //gist.github.com/ThomasTJdev/404866d90ee0bdcec2a0da8dc97c4c87)_ The original inline HTML code was 511.102 chars and breaks the compiling with the following error message _(a single string >= 32.754)_: /Users/travis/build/nim-lang/nightlies/nim/e7471cebae2a404f3e4239f199f5a0c422484aac/lib/system/fatal.nim(48) sysFatal Error: unhandled exception: value out of range: -1 [RangeError] Run When I resize the size to **exactly** 32.749 chars I get the following error message _(a single string = 32.753)_ : /Users/travis/build/nim-lang/nightlies/nim/e7471cebae2a404f3e4239f199f5a0c422484aac/lib/system/fatal.nim(39) sysFatal Error: unhandled exception: over- or underflow [OverflowError] Run Resizing to 32.748 chars it compiles fine _(a single string <= 32.752)_.
