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libwinpr-file: implement recursive pattern matching

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This commit is contained in:
Marc-André Moreau 2012-11-03 16:45:19 -04:00
parent 1ff1d4ce49
commit cc90fd1955
2 changed files with 102 additions and 24 deletions
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73
winpr/libwinpr/file/file.c
View File

@ -328,8 +328,7 @@ LPSTR FilePatternFindNextWildcardA(LPCSTR lpPattern, DWORD* pFlags)
BOOL FilePatternMatchSubExpressionA(LPCSTR lpFileName, size_t cchFileName,
LPCSTR lpX, size_t cchX, LPCSTR lpY, size_t cchY, LPCSTR lpWildcard, LPSTR* ppMatchEnd)
{
printf("FilePatternMatchSubExpressionA: X: %.*s Y: %.*s Wildcard: %.*s FileName: %.*s\n",
cchX, lpX, cchY, lpY, 1, lpWildcard, cchFileName, lpFileName);
LPSTR lpMatch;
if (*lpWildcard == '*')
{
@ -340,7 +339,9 @@ BOOL FilePatternMatchSubExpressionA(LPCSTR lpFileName, size_t cchFileName,
* X * Y == (0)----->-(1)->-----(2)-----(3)
*/
/* State 0: match 'X' */
/*
* State 0: match 'X'
*/
if (cchFileName < cchX)
return FALSE;
@ -358,28 +359,62 @@ BOOL FilePatternMatchSubExpressionA(LPCSTR lpFileName, size_t cchFileName,
* State 2: match Y
*/
if (cchFileName < (cchX + cchY))
/* TODO: case insensitive character search */
lpMatch = strchr(&lpFileName[cchX], *lpY);
if (!lpMatch)
return FALSE;
if (_strnicmp(&lpFileName[cchFileName - cchY], lpY, cchY) != 0)
if (_strnicmp(lpMatch, lpY, cchY) != 0)
return FALSE;
/**
* State 3: final state
*/
*ppMatchEnd = (LPSTR) &lpFileName[cchFileName];
*ppMatchEnd = (LPSTR) &lpMatch[cchY];
return TRUE;
}
else if (*lpWildcard == '?')
{
/**
* X S S Y
* X ?? Y == (0)---(1)---(2)---(3)---(4)
* X S Y
* X ? Y == (0)---(1)---(2)---(3)
*/
printf("warning: unimplemented '?' pattern match\n");
/*
* State 0: match 'X'
*/
if (cchFileName < cchX)
return FALSE;
if (_strnicmp(lpFileName, lpX, cchX) != 0)
return FALSE;
/*
* State 1: match 'S'
*/
/**
* State 2: match Y
*/
/* TODO: case insensitive character search */
lpMatch = strchr(&lpFileName[cchX + 1], *lpY);
if (!lpMatch)
return FALSE;
if (_strnicmp(lpMatch, lpY, cchY) != 0)
return FALSE;
/**
* State 3: final state
*/
*ppMatchEnd = (LPSTR) &lpMatch[cchY];
return TRUE;
}
@ -505,6 +540,10 @@ BOOL FilePatternMatchA(LPCSTR lpFileName, LPCSTR lpPattern)
if (lpWildcard)
{
LPSTR lpX;
LPSTR lpY;
size_t cchX;
size_t cchY;
LPSTR lpMatchEnd;
LPSTR lpSubPattern;
size_t cchSubPattern;
@ -524,11 +563,6 @@ BOOL FilePatternMatchA(LPCSTR lpFileName, LPCSTR lpPattern)
if (!lpNextWildcard)
{
LPSTR lpX;
LPSTR lpY;
size_t cchX;
size_t cchY;
lpX = (LPSTR) lpSubPattern;
cchX = (lpWildcard - lpSubPattern);
@ -542,13 +576,9 @@ BOOL FilePatternMatchA(LPCSTR lpFileName, LPCSTR lpPattern)
}
else
{
LPSTR lpX;
LPSTR lpY;
size_t cchX;
size_t cchY;
while (lpNextWildcard)
{
cchSubFileName = cchFileName - (lpSubFileName - lpFileName);
cchNextWildcard = ((dwNextFlags & WILDCARD_DOS) ? 2 : 1);
lpX = (LPSTR) lpSubPattern;
@ -557,18 +587,13 @@ BOOL FilePatternMatchA(LPCSTR lpFileName, LPCSTR lpPattern)
lpY = (LPSTR) &lpSubPattern[cchX + cchWildcard];
cchY = (lpNextWildcard - lpWildcard) - cchWildcard;
cchSubFileName = (lpNextWildcard - lpSubFileName);
match = FilePatternMatchSubExpressionA(lpSubFileName, cchSubFileName,
lpX, cchX, lpY, cchY, lpWildcard, &lpMatchEnd);
if (!match)
return FALSE;
/* Recursively match subexpressions */
lpSubFileName = lpMatchEnd;
cchSubFileName = strlen(lpSubFileName);
cchWildcard = cchNextWildcard;
lpWildcard = lpNextWildcard;

53
winpr/libwinpr/file/test/TestFilePatternMatch.c
View File

@ -100,6 +100,59 @@ int TestFilePatternMatch(int argc, char* argv[])
return -1;
}
/* 'X ? Y' expression */
if (!FilePatternMatchA("X1Y.txt", "X?Y.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "X1Y.txt", "X?Y.txt");
return -1;
}
if (FilePatternMatchA("XY.txt", "X?Y.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "XY.txt", "X?Y.txt");
return -1;
}
if (FilePatternMatchA("XZ.txt", "X?Y.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "XZ.txt", "X?Y.txt");
return -1;
}
if (FilePatternMatchA("X123Z.txt", "X?Y.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "X123Z.txt", "X?Y.txt");
return -1;
}
/* 'X ? Y ? Z' expression */
if (!FilePatternMatchA("X123Y456Z.txt", "X?Y?Z.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "X123Y456Z.txt", "X?Y?Z.txt");
return -1;
}
if (FilePatternMatchA("XYZ.txt", "X?Y?Z.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "XYZ.txt", "X?Y?Z.txt");
return -1;
}
if (!FilePatternMatchA("X123Y456W.txt", "X?Y?Z.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "X123Y456W.txt", "X?Y?Z.txt");
return -1;
}
if (FilePatternMatchA("XYW.txt", "X?Y?Z.txt"))
{
printf("FilePatternMatchA error: FileName: %s Pattern: %s\n", "XYW.txt", "X?Y?Z.txt");
return -1;
}
return 0;
}