GoKawiilsemfont is a small library that sets typography automatically. As you can see below it automatically highlights, colors, bolds, and italicizes text which aims to make it easier to read.
theme editorial loud monochrome technical
How it works
Every word gets four scores. Each one starts as a dictionary lookup and is then adjusted by a couple of rules over the words around it.
Valence is how good or bad the word is, from -1 to 1. A negator up to three words back flips the sign and damps it, because not great is a mild complaint rather than the mirror image of praise. An intensifier up to two words back scales it instead.
let v = VALENCE[word] ?? 0; // great -> 0.75 if (negatorWithin(3)) v = -v * 0.74; // not great -> -0.55 v *= gain; // really great -> 0.98
Salience is how much the word is worth looking at, 0 to 1. A frequency list gives each word a rarity, 0 for one of the hundred most common English words and 1 for one it has never seen. Rarity alone is not enough, so the score also rises with how often the word repeats in this particular text: an uncommon word you keep saying is what the text is about.
const seen = Math.min(1, (repeats - 1) / 2); const repetition = 0.45 + 0.55 * seen; let s = SALIENCE[word] ?? 0; s = Math.max(s, 0.55 * rarity * repetition); // rarity('the') 0.00, rarity('kubelet') 0.93 // kubelet said once -> 0.23 // kubelet said 3 times -> 0.51
Surprise is where the sentence turns, 0 to 1. Some words announce it on their own, like suddenly or ironically . Otherwise it comes from position: everything for six words after a contrast word gets it, decaying with distance, and so does any word much rarer than the rest of the passage.
let s = SURPRISE[word] ?? 0; // suddenly -> 0.85 if (afterContrast) { s = Math.max(s, 0.45 * 0.82 ** (distance - 1)); } s += 0.3 * Math.max(0, rarity - passageMeanRarity - 0.25); // 'The tests failed' -> failed 0.16 // 'It compiled, but the tests failed' -> failed 0.44
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