56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
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package xrandr
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import (
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"regexp"
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"git.milar.in/milarin/bufr"
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)
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var modePattern = regexp.MustCompile(`^\s*(\d+?)x(\d+?)\s+(.*?)$`)
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var ratePattern = regexp.MustCompile(`(\d+\.\d+)(\*)?(\+)?\s*`)
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type DisplayMode struct {
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Resolution Resolution `json:"resolution"`
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Rate float64 `json:"rate"`
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}
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func parseDisplayModes(r *bufr.Reader) (active, recommended *DisplayMode, allModes []DisplayMode, err error) {
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allModes = make([]DisplayMode, 0)
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var line string
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for line, err = r.StringUntil(isNewLine); err == nil; line, err = r.StringUntil(isNewLine) {
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matches := modePattern.FindStringSubmatch(line)
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// line is not a DisplayMode
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if matches == nil {
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err = nil
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break
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}
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res := NewResolutionFromString(matches[1], matches[2])
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rates := ratePattern.FindAllStringSubmatch(matches[3], -1)
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for _, rate := range rates {
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mode := DisplayMode{
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Resolution: *res,
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Rate: atof(rate[1]),
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}
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if rate[2] == "*" {
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active = &mode
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}
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if rate[3] == "+" {
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recommended = &mode
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}
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allModes = append(allModes, mode)
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}
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}
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// last read line was not a DisplayMode. Unread line
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if err == nil {
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r.UnreadString(line)
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}
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return active, recommended, allModes, err
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}
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