diff options
Diffstat (limited to 'LibOVR/Src/Kernel/OVR_String_PathUtil.cpp')
-rw-r--r-- | LibOVR/Src/Kernel/OVR_String_PathUtil.cpp | 400 |
1 files changed, 200 insertions, 200 deletions
diff --git a/LibOVR/Src/Kernel/OVR_String_PathUtil.cpp b/LibOVR/Src/Kernel/OVR_String_PathUtil.cpp index 27e79c6..698d16e 100644 --- a/LibOVR/Src/Kernel/OVR_String_PathUtil.cpp +++ b/LibOVR/Src/Kernel/OVR_String_PathUtil.cpp @@ -1,200 +1,200 @@ -/************************************************************************************
-
-Filename : OVR_String_PathUtil.cpp
-Content : String filename/url helper function
-Created : September 19, 2012
-Notes :
-
-Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.
-
-Use of this software is subject to the terms of the Oculus license
-agreement provided at the time of installation or download, or which
-otherwise accompanies this software in either electronic or hard copy form.
-
-************************************************************************************/
-
-#include "OVR_String.h"
-#include "OVR_UTF8Util.h"
-
-namespace OVR {
-
-//--------------------------------------------------------------------
-// ***** Path-Scanner helper function
-
-// Scans file path finding filename start and extension start, fills in their addess.
-void ScanFilePath(const char* url, const char** pfilename, const char** pext)
-{
- const char* urlStart = url;
- const char *filename = 0;
- const char *lastDot = 0;
-
- UInt32 charVal = UTF8Util::DecodeNextChar(&url);
-
- while (charVal != 0)
- {
- if ((charVal == '/') || (charVal == '\\'))
- {
- filename = url;
- lastDot = 0;
- }
- else if (charVal == '.')
- {
- lastDot = url - 1;
- }
-
- charVal = UTF8Util::DecodeNextChar(&url);
- }
-
- if (pfilename)
- {
- // It was a naked filename
- if (urlStart && (*urlStart != '.') && *urlStart)
- *pfilename = urlStart;
- else
- *pfilename = filename;
- }
-
- if (pext)
- {
- *pext = lastDot;
- }
-}
-
-// Scans till the end of protocol. Returns first character past protocol,
-// 0 if not found.
-// - protocol: 'file://', 'http://'
-const char* ScanPathProtocol(const char* url)
-{
- UInt32 charVal = UTF8Util::DecodeNextChar(&url);
- UInt32 charVal2;
-
- while (charVal != 0)
- {
- // Treat a colon followed by a slash as absolute.
- if (charVal == ':')
- {
- charVal2 = UTF8Util::DecodeNextChar(&url);
- charVal = UTF8Util::DecodeNextChar(&url);
- if ((charVal == '/') && (charVal2 == '\\'))
- return url;
- }
- charVal = UTF8Util::DecodeNextChar(&url);
- }
- return 0;
-}
-
-
-//--------------------------------------------------------------------
-// ***** String Path API implementation
-
-bool String::HasAbsolutePath(const char* url)
-{
- // Absolute paths can star with:
- // - protocols: 'file://', 'http://'
- // - windows drive: 'c:\'
- // - UNC share name: '\\share'
- // - unix root '/'
-
- // On the other hand, relative paths are:
- // - directory: 'directory/file'
- // - this directory: './file'
- // - parent directory: '../file'
- //
- // For now, we don't parse '.' or '..' out, but instead let it be concatenated
- // to string and let the OS figure it out. This, however, is not good for file
- // name matching in library/etc, so it should be improved.
-
- if (!url || !*url)
- return true; // Treat empty strings as absolute.
-
- UInt32 charVal = UTF8Util::DecodeNextChar(&url);
-
- // Fist character of '/' or '\\' means absolute url.
- if ((charVal == '/') || (charVal == '\\'))
- return true;
-
- while (charVal != 0)
- {
- // Treat a colon followed by a slash as absolute.
- if (charVal == ':')
- {
- charVal = UTF8Util::DecodeNextChar(&url);
- // Protocol or windows drive. Absolute.
- if ((charVal == '/') || (charVal == '\\'))
- return true;
- }
- else if ((charVal == '/') || (charVal == '\\'))
- {
- // Not a first character (else 'if' above the loop would have caught it).
- // Must be a relative url.
- break;
- }
-
- charVal = UTF8Util::DecodeNextChar(&url);
- }
-
- // We get here for relative paths.
- return false;
-}
-
-
-bool String::HasExtension(const char* path)
-{
- const char* ext = 0;
- ScanFilePath(path, 0, &ext);
- return ext != 0;
-}
-bool String::HasProtocol(const char* path)
-{
- return ScanPathProtocol(path) != 0;
-}
-
-
-String String::GetPath() const
-{
- const char* filename = 0;
- ScanFilePath(ToCStr(), &filename, 0);
-
- // Technically we can have extra logic somewhere for paths,
- // such as enforcing protocol and '/' only based on flags,
- // but we keep it simple for now.
- return String(ToCStr(), filename ? (filename-ToCStr()) : GetSize());
-}
-
-String String::GetProtocol() const
-{
- const char* protocolEnd = ScanPathProtocol(ToCStr());
- return String(ToCStr(), protocolEnd ? (protocolEnd-ToCStr()) : 0);
-}
-
-String String::GetFilename() const
-{
- const char* filename = 0;
- ScanFilePath(ToCStr(), &filename, 0);
- return String(filename);
-}
-String String::GetExtension() const
-{
- const char* ext = 0;
- ScanFilePath(ToCStr(), 0, &ext);
- return String(ext);
-}
-
-void String::StripExtension()
-{
- const char* ext = 0;
- ScanFilePath(ToCStr(), 0, &ext);
- if (ext)
- {
- *this = String(ToCStr(), ext-ToCStr());
- }
-}
-
-void String::StripProtocol()
-{
- const char* protocol = ScanPathProtocol(ToCStr());
- if (protocol)
- AssignString(protocol, OVR_strlen(protocol));
-}
-
-} // OVR
+/************************************************************************************ + +Filename : OVR_String_PathUtil.cpp +Content : String filename/url helper function +Created : September 19, 2012 +Notes : + +Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved. + +Use of this software is subject to the terms of the Oculus license +agreement provided at the time of installation or download, or which +otherwise accompanies this software in either electronic or hard copy form. + +************************************************************************************/ + +#include "OVR_String.h" +#include "OVR_UTF8Util.h" + +namespace OVR { + +//-------------------------------------------------------------------- +// ***** Path-Scanner helper function + +// Scans file path finding filename start and extension start, fills in their addess. +void ScanFilePath(const char* url, const char** pfilename, const char** pext) +{ + const char* urlStart = url; + const char *filename = 0; + const char *lastDot = 0; + + UInt32 charVal = UTF8Util::DecodeNextChar(&url); + + while (charVal != 0) + { + if ((charVal == '/') || (charVal == '\\')) + { + filename = url; + lastDot = 0; + } + else if (charVal == '.') + { + lastDot = url - 1; + } + + charVal = UTF8Util::DecodeNextChar(&url); + } + + if (pfilename) + { + // It was a naked filename + if (urlStart && (*urlStart != '.') && *urlStart) + *pfilename = urlStart; + else + *pfilename = filename; + } + + if (pext) + { + *pext = lastDot; + } +} + +// Scans till the end of protocol. Returns first character past protocol, +// 0 if not found. +// - protocol: 'file://', 'http://' +const char* ScanPathProtocol(const char* url) +{ + UInt32 charVal = UTF8Util::DecodeNextChar(&url); + UInt32 charVal2; + + while (charVal != 0) + { + // Treat a colon followed by a slash as absolute. + if (charVal == ':') + { + charVal2 = UTF8Util::DecodeNextChar(&url); + charVal = UTF8Util::DecodeNextChar(&url); + if ((charVal == '/') && (charVal2 == '\\')) + return url; + } + charVal = UTF8Util::DecodeNextChar(&url); + } + return 0; +} + + +//-------------------------------------------------------------------- +// ***** String Path API implementation + +bool String::HasAbsolutePath(const char* url) +{ + // Absolute paths can star with: + // - protocols: 'file://', 'http://' + // - windows drive: 'c:\' + // - UNC share name: '\\share' + // - unix root '/' + + // On the other hand, relative paths are: + // - directory: 'directory/file' + // - this directory: './file' + // - parent directory: '../file' + // + // For now, we don't parse '.' or '..' out, but instead let it be concatenated + // to string and let the OS figure it out. This, however, is not good for file + // name matching in library/etc, so it should be improved. + + if (!url || !*url) + return true; // Treat empty strings as absolute. + + UInt32 charVal = UTF8Util::DecodeNextChar(&url); + + // Fist character of '/' or '\\' means absolute url. + if ((charVal == '/') || (charVal == '\\')) + return true; + + while (charVal != 0) + { + // Treat a colon followed by a slash as absolute. + if (charVal == ':') + { + charVal = UTF8Util::DecodeNextChar(&url); + // Protocol or windows drive. Absolute. + if ((charVal == '/') || (charVal == '\\')) + return true; + } + else if ((charVal == '/') || (charVal == '\\')) + { + // Not a first character (else 'if' above the loop would have caught it). + // Must be a relative url. + break; + } + + charVal = UTF8Util::DecodeNextChar(&url); + } + + // We get here for relative paths. + return false; +} + + +bool String::HasExtension(const char* path) +{ + const char* ext = 0; + ScanFilePath(path, 0, &ext); + return ext != 0; +} +bool String::HasProtocol(const char* path) +{ + return ScanPathProtocol(path) != 0; +} + + +String String::GetPath() const +{ + const char* filename = 0; + ScanFilePath(ToCStr(), &filename, 0); + + // Technically we can have extra logic somewhere for paths, + // such as enforcing protocol and '/' only based on flags, + // but we keep it simple for now. + return String(ToCStr(), filename ? (filename-ToCStr()) : GetSize()); +} + +String String::GetProtocol() const +{ + const char* protocolEnd = ScanPathProtocol(ToCStr()); + return String(ToCStr(), protocolEnd ? (protocolEnd-ToCStr()) : 0); +} + +String String::GetFilename() const +{ + const char* filename = 0; + ScanFilePath(ToCStr(), &filename, 0); + return String(filename); +} +String String::GetExtension() const +{ + const char* ext = 0; + ScanFilePath(ToCStr(), 0, &ext); + return String(ext); +} + +void String::StripExtension() +{ + const char* ext = 0; + ScanFilePath(ToCStr(), 0, &ext); + if (ext) + { + *this = String(ToCStr(), ext-ToCStr()); + } +} + +void String::StripProtocol() +{ + const char* protocol = ScanPathProtocol(ToCStr()); + if (protocol) + AssignString(protocol, OVR_strlen(protocol)); +} + +} // OVR |