minify/css/util.go at master · mightycogs/minify

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package css

import (

"encoding/hex"

"github.com/tdewolff/parse/v2"

"github.com/tdewolff/parse/v2/css"

)

func removeMarkupNewlines(data []byte) []byte {

// remove any \\\r\n \\\r \\\n

for i := 1; i < len(data)-2; i++ {

if data[i] == '\\' && (data[i+1] == '\n' || data[i+1] == '\r') {

// encountered first replacee, now start to move bytes to the front

j := i + 2

if data[i+1] == '\r' && len(data) > i+2 && data[i+2] == '\n' {

j++

}

for ; j < len(data); j++ {

if data[j] == '\\' && len(data) > j+1 && (data[j+1] == '\n' || data[j+1] == '\r') {

if data[j+1] == '\r' && len(data) > j+2 && data[j+2] == '\n' {

j++

}

j++

} else {

data[i] = data[j]

i++

}

data = data[:i]

break

}

return data

}

func rgbToToken(r, g, b float64) Token {

// r, g, b are in interval [0.0, 1.0]

rgb := []byte{byte((r * 255.0) + 0.5), byte((g * 255.0) + 0.5), byte((b * 255.0) + 0.5)}

val := make([]byte, 7)

val[0] = '#'

hex.Encode(val[1:], rgb)

parse.ToLower(val)

if s, ok := ShortenColorHex[string(val[:7])]; ok {

return Token{css.IdentToken, s, nil, 0, 0}

} else if val[1] == val[2] && val[3] == val[4] && val[5] == val[6] {

val[2] = val[3]

val[3] = val[5]

val = val[:4]

} else {

val = val[:7]

}

return Token{css.HashToken, val, nil, 0, 0}

}

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