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114 lines
2.4 KiB
C++
114 lines
2.4 KiB
C++
/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
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* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
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#include "filetype.hh"
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#include <ctype.h>
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namespace Filetype {
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namespace {
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/// Removes any trailing or leading spaces and lowercases the string.
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/// The lowercasing is done simplistically, but it is enough for file
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/// extensions.
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string simplifyString( string const & str )
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{
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string result;
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size_t beginPos = 0;
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while( beginPos < str.size() && isspace( str[ beginPos ] ) )
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++beginPos;
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size_t endPos = str.size();
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while( endPos && isspace( str[ endPos - 1 ] ) )
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--endPos;
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result.reserve( endPos - beginPos );
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while( beginPos < endPos )
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result.push_back( tolower( str[ beginPos++ ] ) );
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return result;
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}
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/// Checks if the given string ends with the given substring
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bool endsWith( string const & str, string const & tail )
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{
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return str.size() >= tail.size() &&
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str.compare( str.size() - tail.size(), tail.size(), tail ) == 0;
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}
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}
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bool isNameOfSound( string const & name )
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{
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string s = simplifyString( name );
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return
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endsWith( s, ".wav" ) ||
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endsWith( s, ".au" ) ||
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endsWith( s, ".voc" ) ||
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endsWith( s, ".ogg" ) ||
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endsWith( s, ".mp3" ) ||
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endsWith( s, ".mp4" ) ||
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endsWith( s, ".m4a") ||
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endsWith( s, ".aac" ) ||
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endsWith( s, ".flac" ) ||
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endsWith( s, ".mid" ) ||
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endsWith( s, ".kar" ) ||
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endsWith( s, ".mpc" ) ||
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endsWith( s, ".wma" ) ||
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endsWith( s, ".wv" ) ||
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endsWith( s, ".ape" ) ||
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endsWith( s, ".spx" );
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}
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bool isNameOfPicture( string const & name )
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{
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string s = simplifyString( name );
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return
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endsWith( s, ".jpg" ) ||
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endsWith( s, ".jpeg" ) ||
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endsWith( s, ".jpe" ) ||
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endsWith( s, ".png" ) ||
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endsWith( s, ".gif" ) ||
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endsWith( s, ".bmp" ) ||
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endsWith( s, ".tif" ) ||
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endsWith( s, ".tiff" ) ||
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endsWith( s, ".tga" ) ||
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endsWith( s, ".pcx" ) ||
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endsWith( s, ".ico" ) ||
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endsWith( s, ".svg" );
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}
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bool isNameOfTiff( string const & name )
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{
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string s = simplifyString( name );
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return
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endsWith( s, ".tif" ) ||
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endsWith( s, ".tiff" );
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}
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bool isNameOfCSS( string const & name )
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{
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string s = simplifyString( name );
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return
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endsWith( s, ".css" );
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}
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bool isNameOfSvg( string const & name )
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{
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string s = simplifyString( name );
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return
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endsWith( s, ".svg" );
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}
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}
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