//-----------------------------------------------------------------------------
// fatfs_compare_names: Compare two filenames (without copying or changing origonals)
// Returns 1 if match, 0 if not
//-----------------------------------------------------------------------------
int fatfs_compare_names(char* strA, char* strB)
{
char *ext1 = NULL;
char *ext2 = NULL;
int ext1Pos, ext2Pos;
int file1Len, file2Len;
// Get both files extension
ext1Pos = FileString_GetExtension(strA);
ext2Pos = FileString_GetExtension(strB);
// NOTE: Extension position can be different for matching
// filename if trailing space are present before it!
// Check that if one has an extension, so does the other
if ((ext1Pos==-1) && (ext2Pos!=-1))
return 0;
if ((ext2Pos==-1) && (ext1Pos!=-1))
return 0;
// If they both have extensions, compare them
if (ext1Pos!=-1)
{
// Set pointer to start of extension
ext1 = strA+ext1Pos+1;
ext2 = strB+ext2Pos+1;
// Verify that the file extension lengths match!
if (strlen(ext1) != strlen(ext2))
return 0;
// If they dont match
if (FileString_StrCmpNoCase(ext1, ext2, (int)strlen(ext1))!=0)
return 0;
// Filelength is upto extensions
file1Len = ext1Pos;
file2Len = ext2Pos;
}
// No extensions
else
{
// Filelength is actual filelength
file1Len = (int)strlen(strA);
file2Len = (int)strlen(strB);
}
// Find length without trailing spaces (before ext)
file1Len = FileString_TrimLength(strA, file1Len);
file2Len = FileString_TrimLength(strB, file2Len);
// Check the file lengths match
if (file1Len!=file2Len)
return 0;
// Compare main part of filenames
if (FileString_StrCmpNoCase(strA, strB, file1Len)!=0)
return 0;
else
return 1;
}
void main(void)
{
char output[255];
char output2[255];
assert(fatfs_total_path_levels("C:\\folder\\file.zip") == 1);
assert(fatfs_total_path_levels("C:\\file.zip") == 0);
assert(fatfs_total_path_levels("C:\\folder\\folder2\\file.zip") == 2);
assert(fatfs_total_path_levels("C:\\") == -1);
assert(fatfs_total_path_levels("") == -1);
assert(fatfs_total_path_levels("/dev/etc/file.zip") == 2);
assert(fatfs_total_path_levels("/dev/file.zip") == 1);
assert(fatfs_get_substring("C:\\folder\\file.zip", 0, output, sizeof(output)) == 0);
assert(strcmp(output, "folder") == 0);
assert(fatfs_get_substring("C:\\folder\\file.zip", 1, output, sizeof(output)) == 0);
assert(strcmp(output, "file.zip") == 0);
assert(fatfs_get_substring("/dev/etc/file.zip", 0, output, sizeof(output)) == 0);
assert(strcmp(output, "dev") == 0);
assert(fatfs_get_substring("/dev/etc/file.zip", 1, output, sizeof(output)) == 0);
assert(strcmp(output, "etc") == 0);
assert(fatfs_get_substring("/dev/etc/file.zip", 2, output, sizeof(output)) == 0);
assert(strcmp(output, "file.zip") == 0);
assert(fatfs_split_path("C:\\folder\\file.zip", output, sizeof(output), output2, sizeof(output2)) == 0);
assert(strcmp(output, "C:\\folder") == 0);
assert(strcmp(output2, "file.zip") == 0);
assert(fatfs_split_path("C:\\file.zip", output, sizeof(output), output2, sizeof(output2)) == 0);
assert(output[0] == 0);
assert(strcmp(output2, "file.zip") == 0);
assert(fatfs_split_path("/dev/etc/file.zip", output, sizeof(output), output2, sizeof(output2)) == 0);
assert(strcmp(output, "/dev/etc") == 0);
assert(strcmp(output2, "file.zip") == 0);
assert(FileString_GetExtension("C:\\file.zip") == strlen("C:\\file"));
assert(FileString_GetExtension("C:\\file.zip.ext") == strlen("C:\\file.zip"));
assert(FileString_GetExtension("C:\\file.zip.") == strlen("C:\\file.zip"));
assert(FileString_TrimLength("C:\\file.zip", strlen("C:\\file.zip")) == strlen("C:\\file.zip"));
assert(FileString_TrimLength("C:\\file.zip ", strlen("C:\\file.zip ")) == strlen("C:\\file.zip"));
assert(FileString_TrimLength(" ", strlen(" ")) == 0);
assert(fatfs_compare_names("C:\\file.ext", "C:\\file.ext") == 1);
assert(fatfs_compare_names("C:\\file2.ext", "C:\\file.ext") == 0);
assert(fatfs_compare_names("C:\\file .ext", "C:\\file.ext") == 1);
assert(fatfs_compare_names("C:\\file .ext", "C:\\file2.ext") == 0);
assert(fatfs_string_ends_with_slash("C:\\folder") == 0);
assert(fatfs_string_ends_with_slash("C:\\folder\\") == 1);
assert(fatfs_string_ends_with_slash("/path") == 0);
assert(fatfs_string_ends_with_slash("/path/a") == 0);
assert(fatfs_string_ends_with_slash("/path/") == 1);
}
//-----------------------------------------------------------------------------
// fatfs_get_extension: Get extension of filename passed in 'filename'.
// Returned extension is always lower case.
// Returns: 1 if ok, 0 if not.
//-----------------------------------------------------------------------------
int fatfs_get_extension(char* filename, char* out, int maxlen)
{
int len = 0;
// Get files extension offset
int ext_pos = FileString_GetExtension(filename);
if (ext_pos > 0 && out && maxlen)
{
filename += ext_pos + 1;
while (*filename && len < (maxlen-1))
{
char a = *filename++;
// Make lowercase if uppercase
if ((a>='A') && (a<='Z'))
a+= 32;
*out++ = a;
len++;
}
*out = '\0';
return 1;
}
return 0;
}
