diff --git a/input_buffer.c b/input_buffer.c index 98d19952..0e659ad3 100644 --- a/input_buffer.c +++ b/input_buffer.c @@ -26,12 +26,12 @@ static char *_inp_buf[BUFMAX]; static int _buf_size; -static int _buf_prev; +static int _buf_pos; void inpbuf_init(void) { _buf_size = 0; - _buf_prev = -1; + _buf_pos = -1; } void inpbuf_append(char *inp) @@ -39,16 +39,31 @@ void inpbuf_append(char *inp) if (_buf_size < BUFMAX) { _inp_buf[_buf_size] = (char*) malloc(strlen(inp) * sizeof(char)); strcpy(_inp_buf[_buf_size], inp); - _buf_prev = _buf_size; + _buf_pos = _buf_size; _buf_size++; } } -char *inpbuf_get_previous(void) +char *inpbuf_previous(void) { - if (_buf_size == 0 || _buf_prev == -1) + if (_buf_size == 0 || _buf_pos == -1) return NULL; - return _inp_buf[_buf_prev--]; + + return _inp_buf[_buf_pos--]; } +char *inpbuf_next(void) +{ + if (_buf_size == 0) + return NULL; + if (_buf_pos == (_buf_size - 1)) + return NULL; + if (_buf_pos + 2 >= _buf_size) + return NULL; + + int pos = _buf_pos + 2; + _buf_pos++; + + return _inp_buf[pos]; +} diff --git a/input_buffer.h b/input_buffer.h index 63a5e028..c4384220 100644 --- a/input_buffer.h +++ b/input_buffer.h @@ -26,6 +26,7 @@ void inpbuf_init(void); void inpbuf_append(char *inp); -char *inpbuf_get_previous(void); +char *inpbuf_previous(void); +char *inpbuf_next(void); #endif diff --git a/input_win.c b/input_win.c index 8becfcc9..91d98caa 100644 --- a/input_win.c +++ b/input_win.c @@ -125,7 +125,7 @@ void inp_poll_char(int *ch, char *input, int *size) // up arrow } else if (*ch == KEY_UP) { - char *prev = inpbuf_get_previous(); + char *prev = inpbuf_previous(); if (prev) { strcpy(input, prev); *size = strlen(input); @@ -135,6 +135,18 @@ void inp_poll_char(int *ch, char *input, int *size) waddch(inp_win, input[i]); } + // down arrow + } else if (*ch == KEY_DOWN) { + char *next = inpbuf_next(); + if (next) { + strcpy(input, next); + *size = strlen(input); + inp_clear(); + int i; + for (i = 0; i < *size; i++) + waddch(inp_win, input[i]); + } + // else if not error, newline or special key, // show it and store it } else if (*ch != ERR &&