[Feature request]: Context-aware punctuation

What feature are you proposing?

Is there any plans for adding context-aware punctuation?

We discussed this issue and we would need a few examples to consider what it might look like. Here's a couple I generated using ChatGPT:

def factorial(n: int) -> int:
    result = 1
    for i in range(1, n + 1):
        result *= i  # Multiplication (*)
    return result

print(factorial(5))  # Output: 120

const mathOps = {
    add: (a, b) => a + b,  // Addition (+)
    subtract: (a, b) => a - b,  // Subtraction (-)
    multiply: (a, b) => a * b   // Multiplication (*)
};

console.log(mathOps.add(10, 5));  // 15
console.log(mathOps.subtract(10, 5));  // 5
console.log(mathOps.multiply(10, 5));  // 50

#include <stdio.h>

typedef struct {
    int x;
    int y;
} Point;

void scale(Point *p, int factor) {
    p->x *= factor;  // Multiplication (*)
    p->y *= factor;  
}

int main() {
    Point p = {3, 4};
    scale(&p, 2);
    printf("Scaled Point: %d, %d\n", p.x, p.y);
    return 0;
}

struct Rectangle {
    width: i32,
    height: i32,
}

impl Rectangle {
    fn area(&self) -> i32 {
        self.width * self.height  // Multiplication (*)
    }
}

fn main() {
    let rect = Rectangle { width: 10, height: 5 };
    println!("Area: {}", rect.area());  // 50
}

package main

import "fmt"

func add(a, b int) int {
    return a + b  // Addition (+)
}

func main() {
    fmt.Println("Sum:", add(10, 5))
}

@bebraw

@bebraw I would need bad vs good examples. Also a list which symbols should have a .case alternative. Right now the mathematical and relevant punctuation symbols are fine-tuned to match each other.

@mupastir

@mupastir Can you help with the research for this feature? Examples from other fonts implementing the feature well would be highly useful. Also see Marcus' notes above.

@bebraw

@bebraw Yeah, sure! I'll prepare some examples and post them there.

@bebraw

@bebraw @MarcusSterz

What I proposed in this PR is actually what I saw in FiraCode, that's why I show only the examples I see from this font.

As I see it, context awareness is applied to capital letters only if they stand close without any space symbols.

But for * symbol it works another way. It sticks to the baseline when it stands before any other symbol.

Let me know if I provided not relevant or not enough info.

@mupastir

@mupastir @bebraw I am sorry, I still don’t get what the issue is. We have a colon.case and the default asterisk is as big and low as in your examples.
Please provide a list and what you wish to change regarding the current state in terms of design and behaviour.

Sorry, I'm not deep into fonts its definitions, and inner implementations. All I just suggested and as I see it symbols of colon, asterisk, plus, minus would be centered by the height of symbols surrounding them. If there are capitalized symbols around colon, colon should be centered by the height of those symbols. I attached the image to the original PR message.

If this suggestion does not align with the project’s goals, feel free to close the PR. I appreciate your time and consideration!

@mupastir

@mupastir thanks for bringing this up. We will discuss this internally and get back to you. I think we have enough information now. Thanks!

We discussed this in detail. It seems the behavior of : and * can be improved since those are used in combinations common in programming. It feels like + and - are rare in the combinations visible in examples (usually there's whitespace in between). Based on this, we'll look into improving spacing around : and * as per your suggestion since it feels like there's something to improve.

@MarcusSterz

I actually found a counterpoint for -: kebab case (CC @MarcusSterz). That's used commonly in CSS.

@mupastir

@mupastir @bebraw @okonet The change from default colon/asterisk to colon.uc/astrerisk.uc (uc = uppercase) is now automated, so that it switches to .uc when the colon is neighboured by two uppercase letters. Please let me know if that would work for you?

Looking good! Can you take a look at - as well since it is commonly used in kebab-cased words kebab-case or KEBAB-CASE

Looking good! Can you take a look at - as well since it is commonly used in kebab-cased words kebab-case or KEBAB-CASE

You want the hyphen to move up and down as well? Whats with mixed cases like Middle-Class? I am still reluctant since variants likes these also alsways create inconsistencies.

Yeah let's leave it for now.

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[Feature request]: Context-aware punctuation #297

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[Feature request]: Context-aware punctuation #297

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What feature are you proposing?

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bebraw commented on Feb 28, 2025

MarcusSterz commented on Mar 5, 2025

bebraw commented on Mar 5, 2025

mupastir commented on Mar 5, 2025

mupastir commented on Mar 5, 2025

MarcusSterz commented on Mar 5, 2025

mupastir commented on Mar 10, 2025

mupastir commented on Mar 10, 2025

okonet commented on Mar 10, 2025

bebraw commented on Mar 14, 2025

bebraw commented on Mar 14, 2025

MarcusSterz commented on Apr 25, 2025

okonet commented on Apr 28, 2025

MarcusSterz commented on Apr 28, 2025

okonet commented on Apr 28, 2025

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