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Programming-Idioms

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  • Java

Idiom #151 Remove string trailing path separator

Remove last character from string p, if this character is the file path separator of current platform.

Note that this also transforms unix root path "/" into the empty string!

import static java.io.File.separatorChar;
int n = p.length() - 1;
while (n != 0 && p.charAt(n) == separatorChar)
    p = p.substring(0, n--);
if string.sub(p, -1, -1) == "/" then
	p=string.sub(p, 1, -2)
end

"/" is tolerated by io library regardless of a platform.
using System.IO;
p.TrimEnd(Path.DirectorySeparatorChar);
New implementation...
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int n = p.length() - 1;
while (n != 0 && p.charAt(n) == separatorChar)
    p = p.substring(0, n--);
if string.sub(p, -1, -1) == "/" then
	p=string.sub(p, 1, -2)
end
p.TrimEnd(Path.DirectorySeparatorChar);

p = p.chomp(dirSeparator);
if (p.endsWith(path.separator)) p = p.substring(0, p.length - 1);
sep := fmt.Sprintf("%c", filepath.Separator)
p = strings.TrimSuffix(p, sep)
sep := fmt.Sprintf("%c", os.PathSeparator)
p = strings.TrimSuffix(p, sep)
p' = dropWhileEnd (== pathSeparator) p
p = p.endsWith(path.sep) ? p.slice(0, -path.sep.length) : p
begin
  p := ChompPathDelim(p);
end.
begin
  p := ExcludeTrailingPathDelimiter(p);
end.
chomp $p, File::Spec->catdir('');
if p.endswith(os.sep):
    p = p[:-1]
p.chomp!("/")
p = p.strip_suffix(std::path::is_separator).unwrap_or(p);
let p = if ::std::path::is_separator(p.chars().last().unwrap()) {
    &p[0..p.len()-1]
} else {
    p
};