GEEKING

Rendering/g3d/g3dcpp/fileutils.cpp

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+/**
+ @file fileutils.cpp
+ 
+ @author Morgan McGuire, graphics3d.com
+ 
+ @author  2002-06-06
+ @edited  2010-02-05
+ */
+
+#include <cstring>
+#include <cstdio>
+#include "G3D/platform.h"
+#include "G3D/fileutils.h"
+
+#include "G3D/stringutils.h"
+
+namespace G3D {
+    
+std::string pathConcat(const std::string& dirname, const std::string& file) {
+    // Ensure that the directory ends in a slash
+    if ((dirname.size() != 0) && 
+        (dirname[dirname.size() - 1] != '/') &&
+        (dirname[dirname.size() - 1] != '\\') &&
+        (dirname[dirname.size() - 1] != ':')) {
+        return dirname + '/' + file;
+    } else {
+        return dirname + file;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+void parseFilename(
+    const std::string&  filename,
+    std::string&        root,
+    Array<std::string>& path,
+    std::string&        base,
+    std::string&        ext) {
+
+    std::string f = filename;
+
+    root = "";
+    path.clear();
+    base = "";
+    ext = "";
+
+    if (f == "") {
+        // Empty filename
+        return;
+    }
+
+    // See if there is a root/drive spec.
+    if ((f.size() >= 2) && (f[1] == ':')) {
+        
+        if ((f.size() > 2) && isSlash(f[2])) {
+        
+            // e.g.  c:\foo
+            root = f.substr(0, 3);
+            f = f.substr(3, f.size() - 3);
+        
+        } else {
+        
+            // e.g.  c:foo
+            root = f.substr(2);
+            f = f.substr(2, f.size() - 2);
+
+        }
+
+    } else if ((f.size() >= 2) & isSlash(f[0]) && isSlash(f[1])) {
+        
+        // e.g. //foo
+        root = f.substr(0, 2);
+        f = f.substr(2, f.size() - 2);
+
+    } else if (isSlash(f[0])) {
+        
+        root = f.substr(0, 1);
+        f = f.substr(1, f.size() - 1);
+
+    }
+
+    // Pull the extension off
+    {
+        // Find the period
+        size_t i = f.rfind('.');
+
+        if (i != std::string::npos) {
+            // Make sure it is after the last slash!
+            size_t j = iMax(f.rfind('/'), f.rfind('\\'));
+            if ((j == std::string::npos) || (i > j)) {
+                ext = f.substr(i + 1, f.size() - i - 1);
+                f = f.substr(0, i);
+            }
+        }
+    }
+
+    // Pull the basename off
+    {
+        // Find the last slash
+        size_t i = iMax(f.rfind('/'), f.rfind('\\'));
+        
+        if (i == std::string::npos) {
+            
+            // There is no slash; the basename is the whole thing
+            base = f;
+            f    = "";
+
+        } else if ((i != std::string::npos) && (i < f.size() - 1)) {
+            
+            base = f.substr(i + 1, f.size() - i - 1);
+            f    = f.substr(0, i);
+
+        }
+    }
+
+    // Parse what remains into path.
+    size_t prev, cur = 0;
+
+    while (cur < f.size()) {
+        prev = cur;
+        
+        // Allow either slash
+        size_t i = f.find('/', prev + 1);
+        size_t j = f.find('\\', prev + 1);
+        if (i == std::string::npos) {
+            i = f.size();
+        }
+
+        if (j == std::string::npos) {
+            j = f.size();
+        }
+
+        cur = iMin(i, j);
+
+        if (cur == std::string::npos) {
+            cur = f.size();
+        }
+
+        path.append(f.substr(prev, cur - prev));
+        ++cur;
+    }
+}
+
+std::string filenameBaseExt(const std::string& filename) {
+    int i = filename.rfind("/");
+    int j = filename.rfind("\\");
+
+    if ((j > i) && (j >= 0)) {
+        i = j;
+    }
+
+#   ifdef G3D_WIN32
+        j = filename.rfind(":");
+        if ((i == -1) && (j >= 0)) {
+            i = j;
+        }
+#   endif
+
+    if (i == -1) {
+        return filename;
+    } else {
+        return filename.substr(i + 1, filename.length() - i);
+    }
+}
+
+
+std::string filenameBase(const std::string& s) {
+    std::string drive;
+    std::string base;
+    std::string ext;
+    Array<std::string> path;
+
+    parseFilename(s, drive, path, base, ext);
+    return base;
+}
+
+
+std::string filenameExt(const std::string& filename) {
+    int i = filename.rfind(".");
+    if (i >= 0) {
+        return filename.substr(i + 1, filename.length() - i);
+    } else {
+        return "";
+    }
+}
+
+
+std::string filenamePath(const std::string& filename) {
+    int i = filename.rfind("/");
+    int j = filename.rfind("\\");
+
+    if ((j > i) && (j >= 0)) {
+        i = j;
+    }
+
+#   ifdef G3D_WIN32
+        j = filename.rfind(":");
+        if ((i == -1) && (j >= 0)) {
+            i = j;
+        }
+#   endif
+
+    if (i == -1) {
+        return "";
+    } else {
+        return filename.substr(0, i+1);
+    }
+}
+
+
+bool filenameContainsWildcards(const std::string& filename) {
+    return (filename.find('*') != std::string::npos) || (filename.find('?') != std::string::npos);
+}
+
+}
+