go quoted 源码
golang quoted 代码
文件路径：/src/cmd/dist/quoted.go
package main
import "fmt"
// quotedSplit is a verbatim copy from cmd/internal/quoted.go:Split and its
// dependencies (isSpaceByte). Since this package is built using the host's
// Go compiler, it cannot use `cmd/internal/...`. We also don't want to export
// it to all Go users.
//
// Please keep those in sync.
func quotedSplit(s string) ([]string, error) {
// Split fields allowing '' or "" around elements.
// Quotes further inside the string do not count.
var f []string
for len(s) > 0 {
for len(s) > 0 && isSpaceByte(s[0]) {
s = s[1:]
}
if len(s) == 0 {
break
}
// Accepted quoted string. No unescaping inside.
if s[0] == '"' || s[0] == '\'' {
quote := s[0]
s = s[1:]
i := 0
for i < len(s) && s[i] != quote {
i++
}
if i >= len(s) {
return nil, fmt.Errorf("unterminated %c string", quote)
}
f = append(f, s[:i])
s = s[i+1:]
continue
}
i := 0
for i < len(s) && !isSpaceByte(s[i]) {
i++
}
f = append(f, s[:i])
s = s[i:]
}
return f, nil
}
func isSpaceByte(c byte) bool {
return c == ' ' || c == '\t' || c == '\n' || c == '\r'
}
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