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Simplify code, remove special functions for ext

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Nikita Ivanov 2022-05-23 07:45:06 +05:00
parent 3e06cea1e4
commit 790566c72a
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GPG Key ID: 6E656AC5B97B5133
1 changed files with 45 additions and 94 deletions
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143
preview.c
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@ -8,32 +8,22 @@
#define PREVP_SIZE sizeof(Preview *)
typedef Preview *(*FindFunc)(char const *s, size_t *i);
static char shell[] = "sh";
static Preview **sorted_by_ext,
**sorted_by_mimetype;
static size_t prevs_length;
static Preview **prevs;
static size_t prevs_len;
static int cmp_prev_ext(const void *p1, const void *p2)
static int cmp_previews(const void *p1, const void *p2)
{
Preview *pr1 = *(Preview **)p1;
Preview *pr2 = *(Preview **)p2;
if (!pr1->ext)
return 1;
if (!pr2->ext)
return -1;
if (pr1->ext && pr2->ext)
return strcmp(pr1->ext, pr2->ext);
}
static int cmp_prev_mimetype(const void *p1, const void *p2)
{
Preview *pr1 = *(Preview **)p1;
Preview *pr2 = *(Preview **)p2;
else if (!pr1->ext && pr2->ext)
return 1;
else if (pr1->ext && !pr2->ext)
return -1;
if (!pr1->type && pr2->type)
return 1;
@ -57,53 +47,28 @@ static int cmp_prev_mimetype(const void *p1, const void *p2)
void init_previews(Preview *ps, size_t len)
{
prevs_length = len;
size_t size = len * PREVP_SIZE;
prevs_len = len;
sorted_by_ext = malloc(size);
sorted_by_mimetype = malloc(size);
if (!sorted_by_ext || !sorted_by_mimetype) {
prevs = malloc(len * PREVP_SIZE);
if (!prevs) {
print_error("malloc() failed");
abort();
}
for (size_t i = 0; i < len; i++)
sorted_by_ext[i] = sorted_by_mimetype[i] = &ps[i];
prevs[i] = &ps[i];
qsort(sorted_by_ext, len, PREVP_SIZE, cmp_prev_ext);
qsort(sorted_by_mimetype, len, PREVP_SIZE, cmp_prev_mimetype);
qsort(prevs, len, PREVP_SIZE, cmp_previews);
}
void cleanup_previews(void)
{
if (sorted_by_ext) {
free(sorted_by_ext);
sorted_by_ext = NULL;
if (prevs) {
free(prevs);
prevs = NULL;
}
if (sorted_by_mimetype) {
free(sorted_by_mimetype);
sorted_by_mimetype = NULL;
}
prevs_length = 0;
}
static Preview *find_by_ext(char const *ext, size_t *i)
{
if (!ext)
return NULL;
Preview *p;
for (; *i < prevs_length; (*i)++) {
p = sorted_by_ext[*i];
if (p->ext && strcmp(ext, p->ext) == 0)
return p;
}
return NULL;
prevs_len = 0;
}
static void break_mimetype(char *mimetype, char **type, char **subtype)
@ -123,7 +88,7 @@ static void break_mimetype(char *mimetype, char **type, char **subtype)
#define MIMETYPE_MAX 64
static Preview *find_by_mimetype(char const *mimetype, size_t *i)
static Preview *find_preview(char const *mimetype, char const *ext, size_t *i)
{
Preview *p;
char mimetype_c[MIMETYPE_MAX], *t, *s;
@ -131,19 +96,25 @@ static Preview *find_by_mimetype(char const *mimetype, size_t *i)
strncpy(mimetype_c, mimetype, MIMETYPE_MAX - 1);
break_mimetype(mimetype_c, &t, &s);
for (; *i < prevs_length; (*i)++) {
p = sorted_by_mimetype[*i];
for (; *i < prevs_len; (*i)++) {
p = prevs[*i];
if (!p->type)
if (!p->ext && !p->type)
return p;
if (strcmp(t, p->type) != 0)
if (p->ext && !ext)
continue;
if (!p->subtype)
if (p->ext && strcmp(ext, p->ext) == 0)
return p;
if (strcmp(s, p->subtype) == 0)
if (p->type && strcmp(t, p->type) != 0)
continue;
if (p->type && !p->subtype)
return p;
if (p->subtype && strcmp(s, p->subtype) == 0)
return p;
}
@ -152,7 +123,7 @@ static Preview *find_by_mimetype(char const *mimetype, size_t *i)
static void check_init_previews(void)
{
if (!sorted_by_ext || !sorted_by_mimetype) {
if (!prevs) {
print_error("init_previews() not called");
abort();
}
@ -160,7 +131,6 @@ static void check_init_previews(void)
static int run(Preview *p, int *exitcode)
{
printf("MIME: .%s %s/%s\n", p->ext, p->type, p->subtype);
char *args[] = { shell, "-c", p->script, shell, NULL };
int *fds[] = { (int[]){ STDOUT_FILENO, STDERR_FILENO }, NULL };
@ -168,30 +138,6 @@ static int run(Preview *p, int *exitcode)
return spawn(args, NULL, exitcode, fds);
}
static int find_and_run(int *found, FindFunc func, char const *arg)
{
Preview *p;
size_t i = 0;
int exitcode;
*found = 0;
run:
p = func(arg, &i);
if (!p)
return OK;
ERRCHK_RET_OK(run(p, &exitcode));
if (exitcode == 127) {
i++;
goto run;
}
*found = 1;
return OK;
}
#define SET_PENV(n, v) \
do { \
if (v) \
@ -211,17 +157,22 @@ int run_preview(const char *ext, const char *mimetype, PreviewArgs *pa)
check_init_previews();
int found;
ERRCHK_RET_OK(find_and_run(&found, find_by_mimetype, mimetype));
if (found)
return OK;
ERRCHK_RET_OK(find_and_run(&found, find_by_ext, ext));
if (found)
return OK;
Preview *p;
size_t i = 0;
int exitcode;
run:
p = find_preview(mimetype, ext, &i);
if (!p) {
puts("ctpv: no previews found");
return OK;
}
ERRCHK_RET_OK(run(p, &exitcode));
if (exitcode == 127) {
i++;
goto run;
}
return OK;
}
@ -229,6 +180,6 @@ int run_preview(const char *ext, const char *mimetype, PreviewArgs *pa)
Preview **get_previews_list(size_t *len)
{
check_init_previews();
*len = prevs_length;
return sorted_by_mimetype;
*len = prevs_len;
return prevs;
}