irisandClaude Opus 5
68c5180260
The token scanner asks what a character is; markdown's meaning is where it sits, so a `#` opens a heading at the start of a line and is an ordinary character three words in. `MarkdownSyntax.kt` reads structure a line at a time and then each line's prose left to right, and `spansOf` is the one entry point that hides which of the two scanners a language got. Conservative wherever a guess would be invisible: emphasis needs a closer on the same line with no space beside either marker, so the `*p = *q` of a C fragment opens nothing; an underscore may not start or end inside a word; and an indented code block is left plain, since four spaces after a blank line and four after a bullet are the same line. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>