/*
- path.cc - manipulation of paths and filenames.
+ file-path.cc - implement File_path
+
+ source file of the Flower Library
+
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include <stdio.h>
-#include "config.hh"
+
#include "file-path.hh"
-#include "flower-debug.hh"
-#ifndef DIRSEP
-#define DIRSEP '/'
+#include <cstdio>
+#include <cerrno>
+
+#include "config.hh"
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef __CYGWIN__
+#include <sys/cygwin.h>
#endif
+#include "file-name.hh"
+
#ifndef PATHSEP
#define PATHSEP ':'
#endif
-/**
- @param path the original full filename
- @return 4 components of the path. They can be empty
-*/
-void
-split_path (String path,
- String &drive, String &dirs, String &filebase, String &extension)
+Array<String>
+File_path::directories () const
{
- // peel off components, one by one.
- int di = path.index_i (':');
- if (di >= 0)
- {
- drive = path.left_str (di + 1);
- path = path.right_str (path.length_i () - di -1);
- }
- else
- drive = "";
-
- di = path.index_last_i (DIRSEP);
- if (di >=0)
- {
- dirs = path.left_str (di + 1);
- path = path.right_str (path.length_i ()-di -1);
- }
- else
- dirs = "";
-
- di = path.index_last_i ('.');
- if (di >= 0)
- {
- filebase = path.left_str (di);
- extension =path.right_str (path.length_i ()-di);
- }
- else
- {
- extension = "";
- filebase = path;
- }
+ return *this;
}
void
File_path::parse_path (String p)
{
- int l;
-
- while ( (l = p.length_i ()) )
+ int len;
+ while ((len = p.length ()) )
{
- int i = p.index_i(PATHSEP);
+ int i = p.index (PATHSEP);
if (i <0)
- i = l;
- add (p.left_str(i));
- p = p.right_str (l- i - 1);
+ i = len;
+ append (p.left_string (i));
+ p = p.right_string (len - i - 1);
}
}
+/** Find a file.
+Check absolute file name, search in the current dir (DUH! FIXME!),
+in the construction-arg (what's that?), and in any other appended
+directory, in this order.
+@return
+The file name if found, or empty string if not found. */
-/** find a file.
- It will search in the current dir, in the construction-arg, and
- in any other added path, in this order.
-
- @return
- The full path if found, or empty string if not found
- */
String
-File_path::find (String nm) const
+File_path::find (String name) const
{
- fdebug << "looking for" << nm << ": ";
- if (!nm.length_i() || (nm == "-") )
- return nm;
- for (int i=0; i < size(); i++)
+ if (!name.length () || (name == "-"))
+ return name;
+
+ /* Handle absolute file name. */
+ if (name[0] == DIRSEP)
{
- String path = elem(i);
- String sep = to_str (DIRSEP);
- String right(path.right_str (1));
- if (path.length_i () && right != sep)
- path += to_str (DIRSEP);
+ if (FILE *f = fopen (name.to_str0 (), "r"))
+ {
+ fclose (f);
+ return name;
+ }
+ }
- path += nm;
+ for (int i = 0; i < size (); i++)
+ {
+ String file_name = elem (i);
+ String sep = ::to_string (DIRSEP);
+ String right (file_name.right_string (1));
+ if (file_name.length () && right != sep)
+ file_name += ::to_string (DIRSEP);
+
+ file_name += name;
+
+#if 0 /* Check if directory. TODO: encapsulate for autoconf */
+ struct stat sbuf;
+ if (stat (file_name.to_str0 (), &sbuf) != 0)
+ continue;
+
+ if (! (sbuf.st_mode & __S_IFREG))
+ continue;
+#endif
+#if !STAT_MACROS_BROKEN
+
+ struct stat sbuf;
+ if (stat (file_name.to_str0 (), &sbuf) != 0)
+ continue;
+
+ if (S_ISDIR (sbuf.st_mode))
+ continue;
+#endif
- fdebug << path << "? ";
- FILE *f = fopen (path.ch_C(), "r"); // ugh!
+ /* ugh */
+ FILE *f = fopen (file_name.to_str0 (), "r");
if (f)
{
- fdebug << "found\n";
fclose (f);
- return path;
+ return file_name;
}
}
- fdebug << '\n';
return "";
}
-void
-File_path::add (String s)
+/** Find a file.
+
+Seach in the current dir (DUH! FIXME?), in the construction-arg
+(what's that?, and in any other appended directory, in this order.
+
+Search for NAME, or name without extension, or name with any of
+EXTENSIONS, in that order.
+
+@return
+The file name if found, or empty string if not found. */
+String
+File_path::find (String name, char const *extensions[])
{
- push (s);
+ File_name file_name (name);
+ if (name.is_empty () || name == "-")
+ file_name.base_ = "-";
+ else
+ {
+ String orig_ext = file_name.ext_;
+ for (int i = 0; extensions[i]; i++)
+ {
+ file_name.ext_ = orig_ext;
+ if (*extensions[i] && !file_name.ext_.is_empty ())
+ file_name.ext_ += ".";
+ file_name.ext_ += extensions[i];
+ if (!find (file_name.to_string ()).is_empty ())
+ break;
+ }
+ /* Reshuffle extension */
+ file_name = File_name (file_name.to_string ());
+ }
+ return file_name.to_string ();
+}
+
+/** Append a directory, return false if failed. */
+bool
+File_path::try_append (String s)
+{
+ if (s == "")
+ s = ".";
+ if (FILE *f = fopen (s.to_str0 (), "r"))
+ {
+ fclose (f);
+ append (s);
+ return true;
+ }
+ return false;
+}
+
+String
+File_path::to_string () const
+{
+ String s;
+ int n = size ();
+ for (int i = 0; i < n; i++)
+ {
+ s = s + elem (i);
+ if (i < n - 1)
+ s += ":";
+ }
+ return s;
}