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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#ifndef FILE_FINDER_LESS_H
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#define FILE_FINDER_LESS_H
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#include <libs/platform/strings.h>
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#include <string>
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namespace FileFinder{
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// Used for maps of file paths. Compares file paths, but ignores case
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// AND treats \ and / as the same character.
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struct path_less
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{
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int compareChar(char a, char b) const
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{
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if(a>b) return 1;
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else if(a<b) return -1;
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return 0;
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}
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int comparePathChar(char a, char b) const
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{
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if(a >= 'a' && a <= 'z') a += 'A'-'a';
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else if(a == '\\') a = '/';
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if(b >= 'a' && b <= 'z') b += 'A'-'a';
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else if(b == '\\') b = '/';
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return compareChar(a,b);
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}
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int compareString(const char *a, const char *b) const
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{
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while(*a && *b)
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{
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int i = comparePathChar(*a,*b);
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if(i != 0) return i;
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a++; b++;
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}
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// At this point, one or both of the chars is a null terminator.
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// Normal char comparison will get the correct final result here.
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return compareChar(*a,*b);
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}
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bool operator() (const std::string& a, const std::string& b) const
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{
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return compareString(a.c_str(), b.c_str()) < 0;
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}
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};
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}
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#endif
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