automaton.h File Reference

#include <stdint.h>

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Data Structures
struct	automaton

Typedefs
typedef int(*	triefunc) (struct inputctx *)
typedef struct automaton	automaton

Functions
void	input_free_esctrie (automaton *a)
int	inputctx_add_input_escape (automaton *a, const char *esc, uint32_t special, unsigned modifiers)
int	inputctx_add_cflow (automaton *a, const char *csi, triefunc fxn) __attribute__((nonnull(1
int int	walk_automaton (automaton *a, struct inputctx *ictx, unsigned candidate, struct ncinput *ni) __attribute__((nonnull(1
int int uint32_t	esctrie_id (const struct esctrie *e)

Typedef Documentation

automaton

typedef struct automaton automaton

triefunc

typedef int(* triefunc) (struct inputctx *)

Definition at line 14 of file automaton.h.

Function Documentation

esctrie_id()

int int uint32_t esctrie_id

(

const struct esctrie *

e

)

input_free_esctrie()

void input_free_esctrie

(

automaton *

a

)

Definition at line 81 of file automaton.c.

                                     {
  a->escapes = 0;
  a->poolsize = 0;
  for(unsigned i = 0 ; i < a->poolused ; ++i){
    free(a->nodepool[i].trie);
  }
  free(a->nodepool);
  a->poolused = 0;
  a->nodepool = NULL;
}

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inputctx_add_cflow()

int inputctx_add_cflow	(	automaton *	a,
		const char *	csi,
		triefunc	fxn
	)

inputctx_add_input_escape()

int inputctx_add_input_escape	(	automaton *	a,
		const char *	esc,
		uint32_t	special,
		unsigned	modifiers
	)

Definition at line 513 of file automaton.c.

                                                 {
  if(esc[0] != NCKEY_ESC || strlen(esc) < 2){ // assume ESC prefix + content
    logerror("not an escape (0x%x)", special);
    return -1;
  }
  esctrie* eptr = insert_path(a, esc + 1);
  if(eptr == NULL){
    return -1;
  }
  // it appears that multiple keys can be mapped to the same escape string. as
  // an example, see "kend" and "kc1" in st ("simple term" from suckless) :/.
  if(eptr->ni.id){ // already had one here!
    if(eptr->ni.id != special){
      logwarn("already added escape (got 0x%x, wanted 0x%x)", eptr->ni.id, special);
    }
  }else{
    eptr->ni.id = special;
    eptr->ni.shift = modifiers & NCKEY_MOD_SHIFT;
    eptr->ni.ctrl = modifiers & NCKEY_MOD_CTRL;
    eptr->ni.alt = modifiers & NCKEY_MOD_ALT;
    eptr->ni.y = 0;
    eptr->ni.x = 0;
    eptr->ni.modifiers = modifiers;
    logdebug("added 0x%08x to %u", special, esctrie_idx(a, eptr));
  }
  return 0;
}

walk_automaton()

int int walk_automaton	(	automaton *	a,
		struct inputctx *	ictx,
		unsigned	candidate,
		struct ncinput *	ni
	)