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/* file_mask.c - matching file against a list of file masks */
#include "file_mask.h"
#include "file.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* Convert the given string to lower-case then put it into
* the specified array of 'file masks'.
*
* @param arr array of file masks
* @param mask a string to add
*/
static void file_mask_add(file_mask_array* vect, const char* mask)
{
rsh_vector_add_ptr(vect, str_tolower(mask));
}
/**
* Construct array from a comma-separated list of strings.
*
* @param comma_separated_list the comma-separated list of strings
* @return constructed array
*/
file_mask_array* file_mask_new_from_list(const char* comma_separated_list)
{
file_mask_array* vect = file_mask_new();
file_mask_add_list(vect, comma_separated_list);
return vect;
}
/**
* Split the given string by comma and put the parts into array.
*
* @param vect the array to put the parsed elements to
* @param comma_separated_list the string to split
*/
void file_mask_add_list(file_mask_array* vect, const char* comma_separated_list)
{
char* buf;
char* cur;
char* next;
if (!comma_separated_list || !*comma_separated_list) {
return;
}
buf = rsh_strdup(comma_separated_list);
for (cur = buf; cur && *cur; cur = next) {
next = strchr(cur, ',');
if (next) *(next++) = '\0';
if (*cur != '\0') file_mask_add(vect, cur);
}
free(buf);
}
/**
* Match a file path against a list of string trailers.
* Usually used to match a filename against list of file extensions.
*
* @param vect the array of string trailers
* @param file the file path to match
* @return 1 if matched, 0 otherwise
*/
int file_mask_match(file_mask_array* vect, struct file_t* file)
{
unsigned i;
int res = 0;
size_t len, namelen;
char* buf;
const char* name = file_get_print_path(file, FPathUtf8);
if (!name)
return 0;
/* all names should match against an empty array */
if (!vect || !vect->size)
return 1;
/* get a lowercase name version to ignore case when matching */
buf = str_tolower(name);
namelen = strlen(buf);
for (i = 0; i < vect->size; i++) {
len = strlen((char*)vect->array[i]);
if (namelen >= len && memcmp(buf + namelen - len, vect->array[i], len) == 0) {
res = 1; /* matched */
break;
}
}
free(buf);
return res;
}
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