X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ffs%2Fpath.cpp;h=a5a5a10a5532133582172da6abcdf93acdf62ea6;hb=b116e161e377da0e4e52f07745ecb2d22f962ae9;hp=035e2200609bf5f6b4f1c4e6ca59a31a6e22cf6f;hpb=dce2985e07e6184f000ef176451150710e21ee35;p=libs%2Fcore.git
diff --git a/source/fs/path.cpp b/source/fs/path.cpp
index 035e220..a5a5a10 100644
--- a/source/fs/path.cpp
+++ b/source/fs/path.cpp
@@ -7,8 +7,10 @@ using namespace std;
namespace {
-inline bool is_windows_drive(const std::string &p)
+#ifdef _WIN32
+inline bool is_windows_drive(const string &p)
{ return (p.size()==2 && ((p[0]>='A' && p[0]<='Z') || (p[0]>='a' && p[0]<='z')) && p[1]==':'); }
+#endif
}
@@ -30,14 +32,14 @@ Path::Path(const char *p)
void Path::init(const string &p)
{
+ if(p.empty())
+ return;
string::size_type start = 0;
- if(p[0]=='/' || p[0]=='\\')
- add_component(string(1, DIRSEP));
- while(1)
+ while(start
start)
- add_component(p.substr(start, slash-start));
+ if(slash>start || start==0)
+ add_component(p.substr(start, max(slash-start, 1U)));
if(slash==string::npos)
break;
start = slash+1;
@@ -51,27 +53,22 @@ unsigned Path::size() const
if(path.size()==1 && path[0]==DIRSEP)
return 1;
- unsigned count = 1;
- for(string::const_iterator i=path.begin(); i!=path.end(); ++i)
- if(*i==DIRSEP) ++count;
- return count;
+ return separators.size()+1;
}
bool Path::is_absolute() const
{
-#ifdef WIN32
- if(is_windows_drive((*this)[0]))
+#ifdef _WIN32
+ if(!empty() && is_windows_drive((*this)[0]))
return true;
#endif
- if(path[0]==DIRSEP)
- return true;
- return false;
+ return path[0]==DIRSEP;
}
Path Path::subpath(unsigned start, unsigned count) const
{
Path result;
- Iterator i = begin();
+ auto i = begin();
for(unsigned j=0; (j1 || (path.size()==1 && path[0]!=DIRSEP))
+ {
+ separators.push_back(path.size());
path += DIRSEP;
+ }
path += comp;
}
}
@@ -166,13 +173,13 @@ string Path::operator[](int n) const
{
if(n>=0)
{
- for(Iterator i=begin(); i!=end(); ++i, --n)
+ for(auto i=begin(); i!=end(); ++i, --n)
if(!n)
return *i;
}
else
{
- for(Iterator i=end(); i!=begin();)
+ for(auto i=end(); i!=begin();)
{
--i;
if(!++n)
@@ -183,80 +190,90 @@ string Path::operator[](int n) const
throw invalid_argument("Path::operator[]");
}
-bool Path::operator==(const Path &p) const
+bool Path::operator==(const Path &other) const
{
-#ifdef WIN32
- return !strcasecmp(path, p.path);
+#ifdef _WIN32
+ return strcasecmp(path, other.path)==0;
#else
- return path==p.path;
+ return path==other.path;
#endif
}
-Path::Iterator Path::begin() const
+bool Path::operator<(const Path &other) const
{
- return Iterator(*this);
+#ifdef _WIN32
+ return strcasecmp(path, other.path)<0;
+#else
+ return path(const Path &other) const
{
- Iterator i(*this);
- i.start = i.end = std::string::npos;
- return i;
+#ifdef _WIN32
+ return strcasecmp(path, other.path)>0;
+#else
+ return path>other.path;
+#endif
}
-Path::Iterator::Iterator(const Path &p):
- path(p),
- start(0)
+Path::Iterator::Iterator(const Path &p, bool e):
+ path(&p),
+ iter(e ? path->separators.end() : path->separators.begin()),
+ end(e || path->path.empty())
{
- if(path.path.empty())
- start = end = string::npos;
- else if(path.path[0]==DIRSEP)
- end = 1;
-#ifdef WIN32
- else if(path.path.size()>2 && path.path[2]==DIRSEP && is_windows_drive(path.path.substr(0, 2)))
- end = 2;
-#endif
- else
- end = path.path.find(DIRSEP);
+ update();
}
Path::Iterator &Path::Iterator::operator++()
{
- start = end;
- if(start>=path.path.size())
- return *this;
- if(path.path[start]==DIRSEP)
- ++start;
- end = path.path.find(DIRSEP, start);
+ if(iter==path->separators.end())
+ end = true;
+ else
+ {
+ ++iter;
+ if(path->path.size()==1 && path->separators.size()==1)
+ end = true;
+ }
+ update();
return *this;
}
Path::Iterator &Path::Iterator::operator--()
{
- if(start==0)
- return *this;
-
- end = start;
- if(end>1 && endpath.size()==1 && path->separators.size()==1)
+ --iter;
+ }
+ else if(iter!=path->separators.begin())
+ --iter;
+ update();
return *this;
}
-string Path::Iterator::operator*() const
+void Path::Iterator::update()
{
- if(start>=path.path.size())
- return string();
- if(start==end)
- return string();
- return path.path.substr(start, end-start);
+ if(end)
+ {
+ current.clear();
+ return;
+ }
+
+ string::size_type start = 0;
+ if(iter!=path->separators.begin())
+ start = *prev(iter)+1;
+
+ string::size_type slash = string::npos;
+ if(iter!=path->separators.end())
+ slash = *iter;
+
+ if(slash==0)
+ current = path->path.substr(start, 1);
+ else
+ current = path->path.substr(start, slash-start);
}
} // namespace FS