// LordHavoc: some portable directory listing code I wrote for lmp2pcx, now used in darkplaces to load id1/*.pak and such...
-int matchpattern(char *in, char *pattern, int caseinsensitive)
+int matchpattern(const char *in, const char *pattern, int caseinsensitive)
{
int c1, c2;
while (*pattern)
{
switch (*pattern)
{
+ case 0:
+ return 1; // end of pattern
case '?': // match any single character
- if (!*in)
+ if (*in == 0 || *in == '/' || *in == '\\' || *in == ':')
return 0; // no match
in++;
pattern++;
case '*': // match anything until following string
if (!*in)
return 1; // match
- while (*pattern == '*')
- pattern++;
- if (*pattern == '?')
- {
- // *? (weird)
- break;
- }
- else if (*pattern)
- {
- // *text (typical)
- while (*in && *in != *pattern)
- in++;
- }
- else
+ pattern++;
+ while (*in)
{
- // *null (* at end of pattern)
- return 1;
+ if (*in == '/' || *in == '\\' || *in == ':')
+ break;
+ // see if pattern matches at this offset
+ if (matchpattern(in, pattern, caseinsensitive))
+ return 1;
+ // nope, advance to next offset
+ in++;
}
break;
default:
return 1; // success
}
-// a little chained strings system
-stringlist_t *stringlistappend(stringlist_t *current, char *text)
+// a little strings system
+void stringlistinit(stringlist_t *list)
{
- stringlist_t *newitem;
- newitem = Z_Malloc(strlen(text) + 1 + sizeof(stringlist_t));
- newitem->next = NULL;
- newitem->text = (char *)(newitem + 1);
- strcpy(newitem->text, text);
- if (current)
- current->next = newitem;
- return newitem;
+ memset(list, 0, sizeof(*list));
+}
+
+void stringlistfreecontents(stringlist_t *list)
+{
+ int i;
+ for (i = 0;i < list->numstrings;i++)
+ {
+ if (list->strings[i])
+ Z_Free(list->strings[i]);
+ list->strings[i] = NULL;
+ }
+ list->numstrings = 0;
+ list->maxstrings = 0;
+ if (list->strings)
+ Z_Free(list->strings);
}
-void stringlistfree(stringlist_t *current)
+void stringlistappend(stringlist_t *list, char *text)
{
- stringlist_t *next;
- while (current)
+ size_t textlen;
+ char **oldstrings;
+
+ if (list->numstrings >= list->maxstrings)
{
- next = current->next;
- Z_Free(current);
- current = next;
+ oldstrings = list->strings;
+ list->maxstrings += 4096;
+ list->strings = Z_Malloc(list->maxstrings * sizeof(*list->strings));
+ if (list->numstrings)
+ memcpy(list->strings, oldstrings, list->numstrings * sizeof(*list->strings));
+ if (oldstrings)
+ Z_Free(oldstrings);
}
+ textlen = strlen(text) + 1;
+ list->strings[list->numstrings] = Z_Malloc(textlen);
+ memcpy(list->strings[list->numstrings], text, textlen);
+ list->numstrings++;
}
-stringlist_t *stringlistsort(stringlist_t *start)
+void stringlistsort(stringlist_t *list)
{
- int notdone;
- stringlist_t *current, *previous, *temp2, *temp3, *temp4;
- notdone = 1;
- while (notdone)
+ int i, j;
+ char *temp;
+ // this is a selection sort (finds the best entry for each slot)
+ for (i = 0;i < list->numstrings - 1;i++)
{
- current = start;
- notdone = 0;
- previous = NULL;
- while (current && current->next)
+ for (j = i + 1;j < list->numstrings;j++)
{
- if (strcmp(current->text, current->next->text) > 0)
+ if (strcasecmp(list->strings[i], list->strings[j]) > 0)
{
- // current is greater than next
- notdone = 1;
- temp2 = current->next;
- temp3 = current;
- temp4 = current->next->next;
- if (previous)
- previous->next = temp2;
- else
- start = temp2;
- temp2->next = temp3;
- temp3->next = temp4;
- break;
+ temp = list->strings[i];
+ list->strings[i] = list->strings[j];
+ list->strings[j] = temp;
}
- previous = current;
- current = current->next;
}
}
- return start;
}
// operating system specific code
#ifdef WIN32
#include <io.h>
-stringlist_t *listdirectory(char *path)
+void listdirectory(stringlist_t *list, const char *path)
{
+ int i;
char pattern[4096], *c;
struct _finddata_t n_file;
- long hFile;
- stringlist_t *start, *current;
+ long hFile;
strlcpy (pattern, path, sizeof (pattern));
- strlcat (pattern, "\\*", sizeof (pattern));
+ strlcat (pattern, "*", sizeof (pattern));
// ask for the directory listing handle
hFile = _findfirst(pattern, &n_file);
- if(hFile != -1)
- {
- // start a new chain with the the first name
- start = current = stringlistappend(NULL, n_file.name);
- // iterate through the directory
- while (_findnext(hFile, &n_file) == 0)
- current = stringlistappend(current, n_file.name);
- _findclose(hFile);
+ if(hFile == -1)
+ return;
+ // start a new chain with the the first name
+ stringlistappend(list, n_file.name);
+ // iterate through the directory
+ while (_findnext(hFile, &n_file) == 0)
+ stringlistappend(list, n_file.name);
+ _findclose(hFile);
- // convert names to lowercase because windows does not care, but pattern matching code often does
- for (current = start;current;current = current->next)
- for (c = current->text;*c;c++)
- if (*c >= 'A' && *c <= 'Z')
- *c += 'a' - 'A';
-
- // sort the list alphanumerically
- start = stringlistsort(start);
- return start;
- }
- else
- return NULL;
+ // convert names to lowercase because windows does not care, but pattern matching code often does
+ for (i = 0;i < list->numstrings;i++)
+ for (c = list->strings[i];*c;c++)
+ if (*c >= 'A' && *c <= 'Z')
+ *c += 'a' - 'A';
}
#else
#include <dirent.h>
-stringlist_t *listdirectory(char *path)
+void listdirectory(stringlist_t *list, const char *path)
{
DIR *dir;
struct dirent *ent;
- stringlist_t *start, *current;
dir = opendir(path);
if (!dir)
- return NULL;
- ent = readdir(dir);
- if (!ent)
- {
- closedir(dir);
- return NULL;
- }
- start = current = stringlistappend(NULL, ent->d_name);
- while((ent = readdir(dir)))
- current = stringlistappend(current, ent->d_name);
+ return;
+ while ((ent = readdir(dir)))
+ if (strcmp(ent->d_name, ".") && strcmp(ent->d_name, ".."))
+ stringlistappend(list, ent->d_name);
closedir(dir);
- // sort the list alphanumerically
- return stringlistsort(start);
}
#endif
-void freedirectory(stringlist_t *list)
-{
- stringlistfree(list);
-}
-