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Diffstat (limited to '')
-rw-r--r-- | modules/markup/markdown/color_util.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/modules/markup/markdown/color_util.go b/modules/markup/markdown/color_util.go new file mode 100644 index 0000000..355fef3 --- /dev/null +++ b/modules/markup/markdown/color_util.go @@ -0,0 +1,19 @@ +// Copyright 2024 The Forgejo Authors. All rights reserved. +// SPDX-License-Identifier: MIT + +package markdown + +import "regexp" + +var ( + hexRGB = regexp.MustCompile(`^#([0-9a-f]{3}|[0-9a-f]{6}|[0-9a-f]{8})$`) + hsl = regexp.MustCompile(`^hsl\([ ]*([012]?[0-9]{1,2}|3[0-5][0-9]|360),[ ]*([0-9]{0,2}|100)\%,[ ]*([0-9]{0,2}|100)\%\)$`) + hsla = regexp.MustCompile(`^hsla\(([ ]*[012]?[0-9]{1,2}|3[0-5][0-9]|360),[ ]*([0-9]{0,2}|100)\%,[ ]*([0-9]{0,2}|100)\%,[ ]*(1|1\.0|0|(0\.[0-9]+))\)$`) + rgb = regexp.MustCompile(`^rgb\(([ ]*((([0-9]{1,2}|100)\%)|(([01]?[0-9]{1,2})|(2[0-4][0-9])|(25[0-5]))),){2}([ ]*((([0-9]{1,2}|100)\%)|(([01]?[0-9]{1,2})|(2[0-4][0-9])|(25[0-5]))))\)$`) + rgba = regexp.MustCompile(`^rgba\(([ ]*((([0-9]{1,2}|100)\%)|(([01]?[0-9]{1,2})|(2[0-4][0-9])|(25[0-5]))),){3}[ ]*(1(\.0)?|0|(0\.[0-9]+))\)$`) +) + +// matchColor return if color is in the form of hex RGB, HSL(A) or RGB(A). +func matchColor(color string) bool { + return hexRGB.MatchString(color) || rgb.MatchString(color) || rgba.MatchString(color) || hsl.MatchString(color) || hsla.MatchString(color) +} |