ColorHelper custom color parsing for .lsx files

README.md

Original Request

https://discord.com/channels/280102180189634562/280157083356233728/1164923362829676626

Screenshot

color_helper.sublime-settings

// file: Packages/User/color_helper.sublime-settings
{
    "user_color_classes": {
        "srgb_norm": {
            "class": "ColorHelper.custom.srgb_norm.ColorSrgbNorm",
            "filters": ["srgb"],
            "output": [
                {"space": "srgb", "format": {"precision": 6}},
            ],
        },
    },
    "user_color_rules": [
        {
            "name": "XML", // overwrites the built-in "XML" color rule
            "base_scopes": ["text.xml"],
            "color_class": "srgb_norm",
            "scanning": [
                "text.xml meta.tag",
            ],
            "color_trigger": "(?<=value=\")(?=[\\d.]+\\s+[\\d.]+\\s+[\\d.]+)",
        },
    ],
}

srgb_norm.py

# file: Packages/ColorHelper/custom/srgb_norm.py

import re

from ColorHelper.ch_util import get_base_color

from ..lib.coloraide.spaces.srgb.css import sRGB

MATCH = re.compile(
    r"""
        (?P<r>\d+(?:\.\d+)?)\s+
        (?P<g>\d+(?:\.\d+)?)\s+
        (?P<b>\d+(?:\.\d+)?)
    """,
    re.VERBOSE,
)


class SrgbNorm(sRGB):
    @classmethod
    def match(cls, string: str, start: int = 0, fullmatch: bool = True):
        """Match and parse a color string."""
        m = MATCH.match(string, start)
        if not m or (fullmatch and m.end(0) != len(string)):
            return None

        r, g, b, a = map(float, m.groups()), 1.0
        return ((r, g, b), a), m.end(0)

    @classmethod
    def to_string(cls, parent, *, precision=6):
        """Output color in `R G B` form."""

        def handle_coord(val: float):
            val = round(val, precision)
            return int(val) if val.is_integer() else val

        coords = parent.clone().coords(nans=False)
        return "{r} {g} {b}".format_map(
            dict(
                zip(
                    ("r", "g", "b"),
                    map(handle_coord, coords),
                )
            )
        )


class ColorSrgbNorm(get_base_color()):
    pass


ColorSrgbNorm.register(SrgbNorm(), overwrite=True)

Hey!

ColorHelper got Updated to cover a solved bug documented on facelessuser/ColorHelper#260
It seems that this code may need also an update?

Thank you so much for your work, your code solved a lot of problem on my end on the last months.

ColorHelper got Updated to cover a solved bug documented on facelessuser/ColorHelper#260 It seems that this code may need also an update?

That looks like I don't have to do anything.

Issue then must be elsewhere and i should apologize.
I beg you pardon, and thank you again.