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package gitignore
import "strings"
const (
asc = iota
desc
)
type depthPatternHolder struct {
patterns depthPatterns
order int
}
func newDepthPatternHolder(order int) depthPatternHolder {
return depthPatternHolder{
patterns: depthPatterns{m: map[int]initialPatternHolder{}},
order: order,
}
}
func (h *depthPatternHolder) add(pattern string) {
count := strings.Count(strings.Trim(pattern, "/"), "/")
h.patterns.set(count+1, pattern)
}
func (h depthPatternHolder) match(path string, isDir bool) bool {
if h.patterns.size() == 0 {
return false
}
for depth := 1; ; depth++ {
var part string
var isLast, isDirCurrent bool
if h.order == asc {
part, isLast = cutN(path, depth)
if isLast {
isDirCurrent = isDir
} else {
isDirCurrent = false
}
} else {
part, isLast = cutLastN(path, depth)
isDirCurrent = isDir
}
if patterns, ok := h.patterns.get(depth); ok {
if patterns.match(part, isDirCurrent) {
return true
}
}
if isLast {
break
}
}
return false
}
type depthPatterns struct {
m map[int]initialPatternHolder
}
func (p *depthPatterns) set(depth int, pattern string) {
if ps, ok := p.m[depth]; ok {
ps.add(pattern)
} else {
holder := newInitialPatternHolder()
holder.add(pattern)
p.m[depth] = holder
}
}
func (p depthPatterns) get(depth int) (initialPatternHolder, bool) {
patterns, ok := p.m[depth]
return patterns, ok
}
func (p depthPatterns) size() int {
return len(p.m)
}
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