mirror of
https://github.com/dlang/phobos.git
synced 2025-05-01 23:50:31 +03:00
600 lines
11 KiB
D
600 lines
11 KiB
D
|
|
/**
|
|
* Macros:
|
|
* WIKI = StdPath
|
|
* Copyright:
|
|
* Copyright (c) 2001-2005 by Digital Mars
|
|
* All Rights Reserved
|
|
* www.digitalmars.com
|
|
*/
|
|
|
|
// File name parsing
|
|
|
|
module std.path;
|
|
|
|
//debug=path; // uncomment to turn on debugging printf's
|
|
|
|
private import std.string;
|
|
|
|
version(Win32)
|
|
{
|
|
|
|
const char[1] sep = "\\"; /// String used to separate directory names in a path.
|
|
const char[1] altsep = "/"; /// Alternate version of sep[], used in Windows.
|
|
const char[1] pathsep = ";"; /// Path separator string.
|
|
const char[2] linesep = "\r\n"; /// String used to separate lines.
|
|
const char[1] curdir = "."; /// String representing the current directory.
|
|
const char[2] pardir = ".."; /// String representing the parent directory.
|
|
}
|
|
version(linux)
|
|
{
|
|
const char[1] sep = "/"; /// String used to separate directory names in a path.
|
|
const char[0] altsep; /// Alternate version of sep[], used in Windows.
|
|
const char[1] pathsep = ":"; /// Path separator string.
|
|
const char[1] linesep = "\n"; /// String used to separate lines.
|
|
const char[1] curdir = "."; /// String representing the current directory.
|
|
const char[2] pardir = ".."; /// String representing the parent directory.
|
|
}
|
|
|
|
/**************************
|
|
* Get extension.
|
|
* For example, "d:\path\foo.bat" returns "bat".
|
|
*/
|
|
|
|
char[] getExt(char[] fullname)
|
|
{
|
|
uint i;
|
|
|
|
i = fullname.length;
|
|
while (i > 0)
|
|
{
|
|
if (fullname[i - 1] == '.')
|
|
return fullname[i .. fullname.length];
|
|
i--;
|
|
version(Win32)
|
|
{
|
|
if (fullname[i] == ':' || fullname[i] == '\\')
|
|
break;
|
|
}
|
|
version(linux)
|
|
{
|
|
if (fullname[i] == '/')
|
|
break;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(path) printf("path.getExt.unittest\n");
|
|
int i;
|
|
char[] result;
|
|
|
|
version (Win32)
|
|
result = getExt("d:\\path\\foo.bat");
|
|
version (linux)
|
|
result = getExt("/path/foo.bat");
|
|
i = cmp(result, "bat");
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
result = getExt("d:\\path\\foo.");
|
|
version (linux)
|
|
result = getExt("d/path/foo.");
|
|
i = cmp(result, "");
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
result = getExt("d:\\path\\foo");
|
|
version (linux)
|
|
result = getExt("d/path/foo");
|
|
i = cmp(result, "");
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
result = getExt("d:\\path.bar\\foo");
|
|
version (linux)
|
|
result = getExt("/path.bar/foo");
|
|
|
|
i = cmp(result, "");
|
|
assert(i == 0);
|
|
|
|
result = getExt("foo");
|
|
i = cmp(result, "");
|
|
assert(i == 0);
|
|
}
|
|
|
|
/**************************
|
|
* Get base name.
|
|
* For example, "d:\path\foo.bat" returns "foo.bat".
|
|
*/
|
|
|
|
char[] getBaseName(char[] fullname)
|
|
out (result)
|
|
{
|
|
assert(result.length <= fullname.length);
|
|
}
|
|
body
|
|
{
|
|
uint i;
|
|
|
|
for (i = fullname.length; i > 0; i--)
|
|
{
|
|
version(Win32)
|
|
{
|
|
if (fullname[i - 1] == ':' || fullname[i - 1] == '\\')
|
|
break;
|
|
}
|
|
version(linux)
|
|
{
|
|
if (fullname[i - 1] == '/')
|
|
break;
|
|
}
|
|
}
|
|
return fullname[i .. fullname.length];
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(path) printf("path.getBaseName.unittest\n");
|
|
int i;
|
|
char[] result;
|
|
|
|
version (Win32)
|
|
result = getBaseName("d:\\path\\foo.bat");
|
|
version (linux)
|
|
result = getBaseName("/path/foo.bat");
|
|
//printf("result = '%.*s'\n", result);
|
|
i = cmp(result, "foo.bat");
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
result = getBaseName("a\\b");
|
|
version (linux)
|
|
result = getBaseName("a/b");
|
|
i = cmp(result, "b");
|
|
assert(i == 0);
|
|
}
|
|
|
|
|
|
/**************************
|
|
* Get directory name.
|
|
* For example, "d:\path\foo.bat" returns "d:\path".
|
|
*/
|
|
|
|
char[] getDirName(char[] fullname)
|
|
out (result)
|
|
{
|
|
assert(result.length <= fullname.length);
|
|
}
|
|
body
|
|
{
|
|
uint i;
|
|
|
|
for (i = fullname.length; i > 0; i--)
|
|
{
|
|
version(Win32)
|
|
{
|
|
if (fullname[i - 1] == ':')
|
|
break;
|
|
if (fullname[i - 1] == '\\')
|
|
{ i--;
|
|
break;
|
|
}
|
|
}
|
|
version(linux)
|
|
{
|
|
if (fullname[i - 1] == '/')
|
|
{ i--;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return fullname[0 .. i];
|
|
}
|
|
|
|
|
|
/********************************
|
|
* Get drive.
|
|
* For example, "d:\path\foo.bat" returns "d:".
|
|
*/
|
|
|
|
char[] getDrive(char[] fullname)
|
|
out (result)
|
|
{
|
|
assert(result.length <= fullname.length);
|
|
}
|
|
body
|
|
{
|
|
version(Win32)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < fullname.length; i++)
|
|
{
|
|
if (fullname[i] == ':')
|
|
return fullname[0 .. i + 1];
|
|
}
|
|
return null;
|
|
}
|
|
version(linux)
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/****************************
|
|
* If filename doesn't already have an extension,
|
|
* append the extension ext and return the result.
|
|
*/
|
|
|
|
char[] defaultExt(char[] filename, char[] ext)
|
|
{
|
|
char[] existing;
|
|
|
|
existing = getExt(filename);
|
|
if (existing.length == 0)
|
|
{
|
|
// Check for filename ending in '.'
|
|
if (filename.length && filename[filename.length - 1] == '.')
|
|
filename ~= ext;
|
|
else
|
|
filename = filename ~ "." ~ ext;
|
|
}
|
|
return filename;
|
|
}
|
|
|
|
|
|
/****************************
|
|
* Strip any existing extension off of filename and add the new extension ext.
|
|
* Return the result.
|
|
*/
|
|
|
|
char[] addExt(char[] filename, char[] ext)
|
|
{
|
|
char[] existing;
|
|
|
|
existing = getExt(filename);
|
|
if (existing.length == 0)
|
|
{
|
|
// Check for filename ending in '.'
|
|
if (filename.length && filename[filename.length - 1] == '.')
|
|
filename ~= ext;
|
|
else
|
|
filename = filename ~ "." ~ ext;
|
|
}
|
|
else
|
|
{
|
|
filename = filename[0 .. filename.length - existing.length] ~ ext;
|
|
}
|
|
return filename;
|
|
}
|
|
|
|
|
|
/*************************************
|
|
* Return !=0 if path is absolute (i.e. it starts from the root directory).
|
|
*/
|
|
|
|
int isabs(char[] path)
|
|
{
|
|
char[] d = getDrive(path);
|
|
|
|
return d.length < path.length && path[d.length] == sep[0];
|
|
}
|
|
|
|
/*************************************
|
|
* Join two path components p1 and p2 and return the result.
|
|
*/
|
|
|
|
char[] join(char[] p1, char[] p2)
|
|
{
|
|
if (!p2.length)
|
|
return p1;
|
|
if (!p1.length)
|
|
return p2;
|
|
|
|
char[] p;
|
|
char[] d1;
|
|
|
|
version(Win32)
|
|
{
|
|
if (getDrive(p2))
|
|
{
|
|
p = p2;
|
|
}
|
|
else
|
|
{
|
|
d1 = getDrive(p1);
|
|
if (p1.length == d1.length)
|
|
{
|
|
p = p1 ~ p2;
|
|
}
|
|
else if (p2[0] == '\\')
|
|
{
|
|
if (d1.length == 0)
|
|
p = p2;
|
|
else if (p1[p1.length - 1] == '\\')
|
|
p = p1 ~ p2[1 .. p2.length];
|
|
else
|
|
p = p1 ~ p2;
|
|
}
|
|
else if (p1[p1.length - 1] == '\\')
|
|
{
|
|
p = p1 ~ p2;
|
|
}
|
|
else
|
|
{
|
|
p = p1 ~ sep ~ p2;
|
|
}
|
|
}
|
|
}
|
|
version(linux)
|
|
{
|
|
if (p2[0] == sep[0])
|
|
{
|
|
p = p2;
|
|
}
|
|
else if (p1[p1.length - 1] == sep[0])
|
|
{
|
|
p = p1 ~ p2;
|
|
}
|
|
else
|
|
{
|
|
p = p1 ~ sep ~ p2;
|
|
}
|
|
}
|
|
return p;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(path) printf("path.join.unittest\n");
|
|
|
|
char[] p;
|
|
int i;
|
|
|
|
p = join("foo", "bar");
|
|
version (Win32)
|
|
i = cmp(p, "foo\\bar");
|
|
version (linux)
|
|
i = cmp(p, "foo/bar");
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
{ p = join("foo\\", "bar");
|
|
i = cmp(p, "foo\\bar");
|
|
}
|
|
version (linux)
|
|
{ p = join("foo/", "bar");
|
|
i = cmp(p, "foo/bar");
|
|
}
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
{ p = join("foo", "\\bar");
|
|
i = cmp(p, "\\bar");
|
|
}
|
|
version (linux)
|
|
{ p = join("foo", "/bar");
|
|
i = cmp(p, "/bar");
|
|
}
|
|
assert(i == 0);
|
|
|
|
version (Win32)
|
|
{ p = join("foo\\", "\\bar");
|
|
i = cmp(p, "\\bar");
|
|
}
|
|
version (linux)
|
|
{ p = join("foo/", "/bar");
|
|
i = cmp(p, "/bar");
|
|
}
|
|
assert(i == 0);
|
|
|
|
version(Win32)
|
|
{
|
|
p = join("d:", "bar");
|
|
i = cmp(p, "d:bar");
|
|
assert(i == 0);
|
|
|
|
p = join("d:\\", "bar");
|
|
i = cmp(p, "d:\\bar");
|
|
assert(i == 0);
|
|
|
|
p = join("d:\\", "\\bar");
|
|
i = cmp(p, "d:\\bar");
|
|
assert(i == 0);
|
|
|
|
p = join("d:\\foo", "bar");
|
|
i = cmp(p, "d:\\foo\\bar");
|
|
assert(i == 0);
|
|
|
|
p = join("d:", "\\bar");
|
|
i = cmp(p, "d:\\bar");
|
|
assert(i == 0);
|
|
|
|
p = join("foo", "d:");
|
|
i = cmp(p, "d:");
|
|
assert(i == 0);
|
|
|
|
p = join("foo", "d:\\");
|
|
i = cmp(p, "d:\\");
|
|
assert(i == 0);
|
|
|
|
p = join("foo", "d:\\bar");
|
|
i = cmp(p, "d:\\bar");
|
|
assert(i == 0);
|
|
}
|
|
}
|
|
|
|
|
|
/*********************************
|
|
* Match file name characters c1 and c2.
|
|
* Case sensitivity depends on the operating system.
|
|
*/
|
|
|
|
int fncharmatch(dchar c1, dchar c2)
|
|
{
|
|
version (Win32)
|
|
{
|
|
if (c1 != c2)
|
|
{
|
|
if ('A' <= c1 && c1 <= 'Z')
|
|
c1 += cast(char)'a' - 'A';
|
|
if ('A' <= c2 && c2 <= 'Z')
|
|
c2 += cast(char)'a' - 'A';
|
|
return c1 == c2;
|
|
}
|
|
return true;
|
|
}
|
|
version (linux)
|
|
{
|
|
return c1 == c2;
|
|
}
|
|
}
|
|
|
|
/************************************
|
|
* Match filename with pattern, using the following wildcards:
|
|
*
|
|
* <table>
|
|
* <tr><td><b>*</b> <td>match 0 or more characters
|
|
* <tr><td><b>?</b> <td>match any character
|
|
* <tr><td><b>[</b><i>chars</i><b>]</b> <td>match any character that appears between the []
|
|
* <tr><td><b>[!</b><i>chars</i><b>]</b> <td>match any character that does not appear between the [! ]
|
|
* </table>
|
|
*
|
|
* Matching is case sensitive on a file system that is case sensitive.
|
|
*
|
|
* Returns:
|
|
* !=0 for match
|
|
*/
|
|
|
|
int fnmatch(char[] filename, char[] pattern)
|
|
in
|
|
{
|
|
// Verify that pattern[] is valid
|
|
int i;
|
|
int inbracket = false;
|
|
|
|
for (i = 0; i < pattern.length; i++)
|
|
{
|
|
switch (pattern[i])
|
|
{
|
|
case '[':
|
|
assert(!inbracket);
|
|
inbracket = true;
|
|
break;
|
|
|
|
case ']':
|
|
assert(inbracket);
|
|
inbracket = false;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
body
|
|
{
|
|
int pi;
|
|
int ni;
|
|
char pc;
|
|
char nc;
|
|
int j;
|
|
int not;
|
|
int anymatch;
|
|
|
|
ni = 0;
|
|
for (pi = 0; pi < pattern.length; pi++)
|
|
{
|
|
pc = pattern[pi];
|
|
switch (pc)
|
|
{
|
|
case '*':
|
|
if (pi + 1 == pattern.length)
|
|
goto match;
|
|
for (j = ni; j < filename.length; j++)
|
|
{
|
|
if (fnmatch(filename[j .. filename.length], pattern[pi + 1 .. pattern.length]))
|
|
goto match;
|
|
}
|
|
goto nomatch;
|
|
|
|
case '?':
|
|
if (ni == filename.length)
|
|
goto nomatch;
|
|
ni++;
|
|
break;
|
|
|
|
case '[':
|
|
if (ni == filename.length)
|
|
goto nomatch;
|
|
nc = filename[ni];
|
|
ni++;
|
|
not = 0;
|
|
pi++;
|
|
if (pattern[pi] == '!')
|
|
{ not = 1;
|
|
pi++;
|
|
}
|
|
anymatch = 0;
|
|
while (1)
|
|
{
|
|
pc = pattern[pi];
|
|
if (pc == ']')
|
|
break;
|
|
if (!anymatch && fncharmatch(nc, pc))
|
|
anymatch = 1;
|
|
pi++;
|
|
}
|
|
if (!(anymatch ^ not))
|
|
goto nomatch;
|
|
break;
|
|
|
|
default:
|
|
if (ni == filename.length)
|
|
goto nomatch;
|
|
nc = filename[ni];
|
|
if (!fncharmatch(pc, nc))
|
|
goto nomatch;
|
|
ni++;
|
|
break;
|
|
}
|
|
}
|
|
if (ni < filename.length)
|
|
goto nomatch;
|
|
|
|
match:
|
|
return true;
|
|
|
|
nomatch:
|
|
return false;
|
|
}
|
|
|
|
unittest
|
|
{
|
|
debug(path) printf("path.fnmatch.unittest\n");
|
|
|
|
version (Win32)
|
|
assert(fnmatch("foo", "Foo"));
|
|
version (linux)
|
|
assert(!fnmatch("foo", "Foo"));
|
|
assert(fnmatch("foo", "*"));
|
|
assert(fnmatch("foo.bar", "*"));
|
|
assert(fnmatch("foo.bar", "*.*"));
|
|
assert(fnmatch("foo.bar", "foo*"));
|
|
assert(fnmatch("foo.bar", "f*bar"));
|
|
assert(fnmatch("foo.bar", "f*b*r"));
|
|
assert(fnmatch("foo.bar", "f???bar"));
|
|
assert(fnmatch("foo.bar", "[fg]???bar"));
|
|
assert(fnmatch("foo.bar", "[!gh]*bar"));
|
|
|
|
assert(!fnmatch("foo", "bar"));
|
|
assert(!fnmatch("foo", "*.*"));
|
|
assert(!fnmatch("foo.bar", "f*baz"));
|
|
assert(!fnmatch("foo.bar", "f*b*x"));
|
|
assert(!fnmatch("foo.bar", "[gh]???bar"));
|
|
assert(!fnmatch("foo.bar", "[!fg]*bar"));
|
|
assert(!fnmatch("foo.bar", "[fg]???baz"));
|
|
}
|