func prevOne(g *gocui.Gui, v *gocui.View) error {
if lv := g.View("side"); lv != nil {
_, height := g.Size()
height = height - 2*Padding
length := len(files)
file_offset = (file_offset - 1 + length) % length
drawSide(g, lv, files, file_offset)
}
return nil
}
func drawCenter(g *gocui.Gui) {
if v := g.View("center"); v != nil {
_, height := g.Size()
height = height - 2
if text, err := TailFile(files[file_offset], height); err == nil {
if i := strings.Index(text, "\n"); i > 0 {
re := regexp.MustCompile("\\033[[0-9]+m")
line := re.ReplaceAllString(text[0:i], "")
text = line + text[i:]
} else {
re := regexp.MustCompile("\\033[[0-9]+m")
text = re.ReplaceAllString(text, "")
}
v.Clear()
fmt.Fprintf(v, "%s", text)
g.Flush()
} else {
v.Clear()
fmt.Fprintf(v, "------ failed to read from %s ------\n", filepath.Base(files[file_offset]))
g.Flush()
}
}
}