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[input] walk specials automaton

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nick black 2021-09-14 20:17:52 -04:00
parent fd5708a7cd
commit 0c16296b96
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 31 additions and 2 deletions
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33
src/lib/in.c
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@ -21,11 +21,12 @@
// FIXME still need to:
// read specials from terminfo
// integrate main specials trie with automaton, or match it alongside
// the main automaton
// integrate main specials trie with automaton (maybe)
// wake up input thread when space becomes available
// restore stats
// modifiers for non-kitty, non-mouse input
// adjust mouse locations for margins
// handle timeouts
static sig_atomic_t resize_seen;
@ -131,6 +132,7 @@ typedef struct inputctx {
char runstring[BUFSIZ]; // running string (when stringstate != STATE_NULL)
int stridx; // length of runstring
int p2, p3, p4; // holders for numeric params
struct esctrie* triepos;// position in escapes automaton
// ringbuffers for processed, structured input
cursorloc* csrs; // cursor reports are dumped here
@ -389,6 +391,7 @@ prep_all_keys(inputctx* ictx){
input_free_esctrie(&ictx->inputescapes);
return -1;
}
ictx->triepos = ictx->inputescapes;
return 0;
}
@ -635,6 +638,26 @@ mouse_click(inputctx* ictx){
pthread_cond_broadcast(&ictx->icond);
}
static void
special_key(inputctx* ictx){
assert(ictx->triepos);
assert(NCKEY_INVALID != ictx->triepos->special);
pthread_mutex_lock(&ictx->ilock);
if(ictx->ivalid == ictx->isize){
pthread_mutex_unlock(&ictx->ilock);
logerror("dropping input 0x%08xx\n", ictx->triepos->special);
return;
}
ncinput* ni = ictx->inputs + ictx->iwrite;
ni->id = ictx->triepos->special;
ni->alt = ictx->triepos->alt;
ni->ctrl = ictx->triepos->ctrl;
ni->shift = ictx->triepos->shift;
ni->x = ni->y = 0;
pthread_mutex_unlock(&ictx->ilock);
pthread_cond_broadcast(&ictx->icond);
}
// ictx->numeric and ictx->p2 have the two parameters
static void
kitty_kbd(inputctx* ictx){
@ -1211,6 +1234,12 @@ process_escape(inputctx* ictx, const unsigned char* buf, int buflen){
if(r == 1){
handoff_initial_responses(ictx);
}
logtrace("triepos: %p in: %u special: 0x%08x\n", ictx->triepos, buf[used], ictx->triepos->special);
if((ictx->triepos = ictx->triepos->trie[buf[used]]) == NULL){
ictx->triepos = ictx->inputescapes;
}else if(ictx->triepos->special != NCKEY_INVALID){
special_key(ictx);
}
++used;
}
return used;