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#if HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#if HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_H */
#if HAVE_STRINGS_H
#include <strings.h>
#endif /* HAVE_STRINGS_H */
#if HAVE_STDLIB_H
#include <stdlib.h> /* for getenv */
#endif /* HAVE_STDLIB_H */
#if HAVE_STDIO_H
#include <stdio.h> /* for stderr */
#endif /* HAVE_STDIO_H */
/* term.h prototypes */
#ifdef __cplusplus
#define EXTERN_C extern "C"
#else
#define EXTERN_C extern
#endif
EXTERN_C int tgetent(char *, const char *);
EXTERN_C char *tgetstr(const char *, char **);
#include "sys_util.h"
#include "sys_win.h"
#include "kui_term.h"
#define MAXLINE 4096
#define MAX_SEQ_LIST_SIZE 8
/**
* This contains all of the ESC sequences this unit cares about.
* It contains the correct information to get esc sequences out of both
* termcap and terminfo.
*/
struct tlist {
/* The key */
enum cgdb_key key;
/* the termcap capability name */
const char *tname;
/* the termcap key sequence */
const char *tname_seq;
/* the terminfo capability name */
const char *tiname;
/* the terminfo key sequence */
const char *tiname_seq;
} seqlist[] = {
{
CGDB_KEY_END, "@7", NULL, "kend", NULL}, {
CGDB_KEY_HOME, "kh", NULL, "khome", NULL}, {
CGDB_KEY_HOME, "kH", NULL, "kll", NULL}, {
CGDB_KEY_DC, "kD", NULL, "kdch1", NULL}, {
CGDB_KEY_IC, "kI", NULL, "kich1", NULL}, {
CGDB_KEY_NPAGE, "kN", NULL, "knp", NULL}, {
CGDB_KEY_PPAGE, "kP", NULL, "kpp", NULL},
/* For arrow keys */
{
CGDB_KEY_DOWN, "kd", NULL, "kcud1", NULL}, {
CGDB_KEY_LEFT, "kl", NULL, "kcub1", NULL}, {
CGDB_KEY_RIGHT, "kr", NULL, "kcuf1", NULL}, {
CGDB_KEY_UP, "ku", NULL, "kcuu1", NULL}, {
CGDB_KEY_LEFT, "le", NULL, "cub1", NULL}, {
CGDB_KEY_RIGHT, "nd", NULL, "cuf1", NULL}, {
CGDB_KEY_UP, "up", NULL, "cuu1", NULL},
/* Function keys */
{
CGDB_KEY_F1, "k1", NULL, "kf1", NULL}, {
CGDB_KEY_F2, "k2", NULL, "kf2", NULL}, {
CGDB_KEY_F3, "k3", NULL, "kf3", NULL}, {
CGDB_KEY_F4, "k4", NULL, "kf4", NULL}, {
CGDB_KEY_F5, "k5", NULL, "kf5", NULL}, {
CGDB_KEY_F6, "k6", NULL, "kf6", NULL}, {
CGDB_KEY_F7, "k7", NULL, "kf7", NULL}, {
CGDB_KEY_F8, "k8", NULL, "kf8", NULL}, {
CGDB_KEY_F9, "k9", NULL, "kf9", NULL}, {
CGDB_KEY_F10, "k;", NULL, "kf10", NULL}, {
CGDB_KEY_F11, "F1", NULL, "kf11", NULL}, {
CGDB_KEY_F12, "F2", NULL, "kf12", NULL}, {
CGDB_KEY_ERROR, NULL, NULL, NULL, NULL}
};
/* This represents all of the hard coded key data. */
struct keydata {
enum cgdb_key key;
const char *key_seq;
} hard_coded_bindings[] = {
{
CGDB_KEY_ESC, "\033"},
/* Arrow bindings */
/* A cgdb key can be represented by several different terminal
* mappings. Different terminals produce different key sequences, for
* say F11, and we hard code common cases for the popular terminals.
*
* cgdb returns the enumeration cgdb_key back up to cgdb
* instead of the key sequence. The first key mapping is the one that
* will be used when asking what character mapping makes up a cgdb key.
*
* For this reason, we put the ones that are hard coded in readline
* on top. That way, we know when we pass readline the key mapping,
* it will understand it.
*/
{
CGDB_KEY_UP, "\033[A"}, {
CGDB_KEY_DOWN, "\033[B"}, {
CGDB_KEY_RIGHT, "\033[C"}, {
CGDB_KEY_LEFT, "\033[D"}, {
CGDB_KEY_HOME, "\033[H"}, {
CGDB_KEY_END, "\033[F"},
/* Arrow bindings, MSDOS */
{
CGDB_KEY_UP, "\033[0A"}, {
CGDB_KEY_LEFT, "\033[0B"}, {
CGDB_KEY_RIGHT, "\033[0C"}, {
CGDB_KEY_DOWN, "\033[0D"}, {
CGDB_KEY_UP, "\033OA"}, {
CGDB_KEY_DOWN, "\033OB"}, {
CGDB_KEY_RIGHT, "\033OC"}, {
CGDB_KEY_LEFT, "\033OD"}, {
CGDB_KEY_HOME, "\033OH"}, {
CGDB_KEY_END, "\033OF"},
/* Passed through to readline */
{
CGDB_KEY_BACKWARD_WORD, "\033b"}, {
CGDB_KEY_FORWARD_WORD, "\033f"}, {
CGDB_KEY_BACKWARD_KILL_WORD, "\033\b"}, {
CGDB_KEY_FORWARD_KILL_WORD, "\033d"},
/* Ctrl bindings */
{
CGDB_KEY_CTRL_A, "\001"}, {
CGDB_KEY_CTRL_B, "\002"}, {
CGDB_KEY_CTRL_C, "\003"}, {
CGDB_KEY_CTRL_D, "\004"}, {
CGDB_KEY_CTRL_E, "\005"}, {
CGDB_KEY_CTRL_F, "\006"}, {
CGDB_KEY_CTRL_G, "\007"}, {
CGDB_KEY_CTRL_H, "\010"}, {
CGDB_KEY_CTRL_I, "\011"}, {
CGDB_KEY_CTRL_J, "\012"}, {
CGDB_KEY_CTRL_K, "\013"}, {
CGDB_KEY_CTRL_L, "\014"}, {
CGDB_KEY_CTRL_M, "\015"}, {
CGDB_KEY_CTRL_N, "\016"}, {
CGDB_KEY_CTRL_O, "\017"}, {
CGDB_KEY_CTRL_P, "\020"}, {
CGDB_KEY_CTRL_Q, "\021"}, {
CGDB_KEY_CTRL_R, "\022"}, {
CGDB_KEY_CTRL_S, "\023"}, {
CGDB_KEY_CTRL_T, "\024"}, {
CGDB_KEY_CTRL_U, "\025"}, {
CGDB_KEY_CTRL_V, "\026"}, {
CGDB_KEY_CTRL_W, "\027"}, {
CGDB_KEY_CTRL_X, "\030"}, {
CGDB_KEY_CTRL_Y, "\031"}, {
CGDB_KEY_CTRL_Z, "\032"}, {
CGDB_KEY_ERROR, NULL}
};
/**
* This is the main data structure in determining the string representation
* of a keycode that can be used in a map command. All of the hard coded
* keycodes that can be used in a map is stored here. Some keycodes can not
* be hard coded and are read from the termcap/terminfo library.
*/
struct cgdb_keycode_data {
/* This is the "key" that can be converted to text. */
int key;
/* This is the text value associated with the key */
const char *keycode;
/* This is here purely for debugging purposes, it is used to print out the key
* in human readable form. */
const char *key_as_string;
} cgdb_keycodes[] = {
/* Shift keys */
{
'A', "<S-a>", "<shift a>"}, {
'B', "<S-b>", "<shift b>"}, {
'C', "<S-c>", "<shift c>"}, {
'D', "<S-d>", "<shift d>"}, {
'E', "<S-e>", "<shift e>"}, {
'F', "<S-f>", "<shift f>"}, {
'G', "<S-g>", "<shift g>"}, {
'H', "<S-h>", "<shift h>"}, {
'I', "<S-i>", "<shift i>"}, {
'J', "<S-j>", "<shift j>"}, {
'K', "<S-k>", "<shift k>"}, {
'L', "<S-l>", "<shift l>"}, {
'M', "<S-m>", "<shift m>"}, {
'N', "<S-n>", "<shift n>"}, {
'O', "<S-o>", "<shift o>"}, {
'P', "<S-p>", "<shift p>"}, {
'Q', "<S-q>", "<shift q>"}, {
'R', "<S-r>", "<shift r>"}, {
'S', "<S-s>", "<shift s>"}, {
'T', "<S-t>", "<shift t>"}, {
'U', "<S-u>", "<shift u>"}, {
'V', "<S-v>", "<shift v>"}, {
'W', "<S-w>", "<shift w>"}, {
'X', "<S-x>", "<shift x>"}, {
'Y', "<S-y>", "<shift y>"}, {
'Z', "<S-z>", "<shift z>"},
/* The enum cgdb keys in order */
{
CGDB_KEY_ESC, "<Esc>", "CGDB_KEY_ESC"}, {
CGDB_KEY_UP, "<Up>", "CGDB_KEY_UP"}, {
CGDB_KEY_DOWN, "<Down>", "CGDB_KEY_DOWN"}, {
CGDB_KEY_LEFT, "<Left>", "CGDB_KEY_LEFT"}, {
CGDB_KEY_RIGHT, "<Right>", "CGDB_KEY_RIGHT"}, {
CGDB_KEY_HOME, "<Home>", "CGDB_KEY_HOME"}, {
CGDB_KEY_END, "<End>", "CGDB_KEY_END"}, {
CGDB_KEY_PPAGE, "<PageUp>", "CGDB_KEY_PPAGE"}, {
CGDB_KEY_NPAGE, "<PageDown>", "CGDB_KEY_NPAGE"}, {
CGDB_KEY_DC, "<Del>", "CGDB_KEY_DC"}, {
CGDB_KEY_IC, "<Insert>", "CGDB_KEY_IC"}, {
CGDB_KEY_F1, "<F1>", "CGDB_KEY_F1"}, {
CGDB_KEY_F2, "<F2>", "CGDB_KEY_F2"}, {
CGDB_KEY_F3, "<F3>", "CGDB_KEY_F3"}, {
CGDB_KEY_F4, "<F4>", "CGDB_KEY_F4"}, {
CGDB_KEY_F5, "<F5>", "CGDB_KEY_F5"}, {
CGDB_KEY_F6, "<F6>", "CGDB_KEY_F6"}, {
CGDB_KEY_F7, "<F7>", "CGDB_KEY_F7"}, {
CGDB_KEY_F8, "<F8>", "CGDB_KEY_F8"}, {
CGDB_KEY_F9, "<F9>", "CGDB_KEY_F9"}, {
CGDB_KEY_F10, "<F10>", "CGDB_KEY_F10"}, {
CGDB_KEY_F11, "<F11>", "CGDB_KEY_F11"}, {
CGDB_KEY_F12, "<F12>", "CGDB_KEY_F12"}, {
CGDB_KEY_BACKWARD_WORD, "<BACKWARD-WORD>", "CGDB_KEY_BACKWARD_WORD"}, {
CGDB_KEY_FORWARD_WORD, "<FORWARD-WORD>", "CGDB_KEY_FORWARD_WORD"}, {
CGDB_KEY_BACKWARD_KILL_WORD,
"<BACKWARD-KILL_WORD>", "CGDB_KEY_BACKWARD_KILL_WORD"}, {
CGDB_KEY_FORWARD_KILL_WORD,
"<FORWARD-KILL_WORD>", "CGDB_KEY_FORWARD_KILL_WORD"}, {
CGDB_KEY_CTRL_A, "<C-a>", "CGDB_KEY_CTRL_A"}, {
CGDB_KEY_CTRL_B, "<C-b>", "CGDB_KEY_CTRL_B"}, {
CGDB_KEY_CTRL_C, "<C-c>", "CGDB_KEY_CTRL_C"}, {
CGDB_KEY_CTRL_D, "<C-d>", "CGDB_KEY_CTRL_D"}, {
CGDB_KEY_CTRL_E, "<C-e>", "CGDB_KEY_CTRL_E"}, {
CGDB_KEY_CTRL_F, "<C-f>", "CGDB_KEY_CTRL_F"}, {
CGDB_KEY_CTRL_G, "<C-g>", "CGDB_KEY_CTRL_G"}, {
CGDB_KEY_CTRL_H, "<C-h>", "CGDB_KEY_CTRL_H"}, {
CGDB_KEY_CTRL_I, "<C-i>", "CGDB_KEY_CTRL_I"}, {
CGDB_KEY_CTRL_J, "<C-j>", "CGDB_KEY_CTRL_J"}, {
CGDB_KEY_CTRL_K, "<C-k>", "CGDB_KEY_CTRL_K"}, {
CGDB_KEY_CTRL_L, "<C-l>", "CGDB_KEY_CTRL_L"}, {
CGDB_KEY_CTRL_M, "<C-m>", "CGDB_KEY_CTRL_M"}, {
CGDB_KEY_CTRL_N, "<C-n>", "CGDB_KEY_CTRL_N"}, {
CGDB_KEY_CTRL_O, "<C-o>", "CGDB_KEY_CTRL_O"}, {
CGDB_KEY_CTRL_P, "<C-p>", "CGDB_KEY_CTRL_P"}, {
CGDB_KEY_CTRL_Q, "<C-q>", "CGDB_KEY_CTRL_Q"}, {
CGDB_KEY_CTRL_R, "<C-r>", "CGDB_KEY_CTRL_R"}, {
CGDB_KEY_CTRL_S, "<C-s>", "CGDB_KEY_CTRL_S"}, {
CGDB_KEY_CTRL_T, "<C-t>", "CGDB_KEY_CTRL_T"}, {
CGDB_KEY_CTRL_U, "<C-u>", "CGDB_KEY_CTRL_U"}, {
CGDB_KEY_CTRL_V, "<C-v>", "CGDB_KEY_CTRL_V"}, {
CGDB_KEY_CTRL_W, "<C-w>", "CGDB_KEY_CTRL_W"}, {
CGDB_KEY_CTRL_X, "<C-x>", "CGDB_KEY_CTRL_X"}, {
CGDB_KEY_CTRL_Y, "<C-y>", "CGDB_KEY_CTRL_Y"}, {
CGDB_KEY_CTRL_Z, "<C-z>", "CGDB_KEY_CTRL_Z"}, {
0, "<Nul>", "<Zero>"}, {
CGDB_KEY_CTRL_H, "<BS>", "<Backspace>"}, {
CGDB_KEY_CTRL_I, "<Tab>", "<Tab>"}, {
CGDB_KEY_CTRL_J, "<NL>", "<linefeed>"}, {
CGDB_KEY_CTRL_L, "<FF>", "<formfeed>"}, {
CGDB_KEY_CTRL_M, "<CR>", "<carriage return>"}, {
CGDB_KEY_CTRL_M, "<Return>", "<carriage return>"}, {
CGDB_KEY_CTRL_M, "<Enter>", "<carriage return>"}, {
32, "<Space>", "<space>"}, {
60, "<lt>", "<less-than>"}, {
92, "<Bslash>", "<backslash>"}, {
124, "<Bar>", "<vertical bar>"}, {
127, "<Del>", "<delete>"}, {
CGDB_KEY_ERROR, "CGDB_KEY_ERROR", "CGDB_KEY_ERROR"}
};
/**
* This adds key bindings that many terminals use.
*
* @return
* 0 on success, or -1 on error
*/
static int add_keybindings(struct kui_map_set *map)
{
int i, val;
const char *keycode;
for (i = 0; hard_coded_bindings[i].key != CGDB_KEY_ERROR; ++i) {
keycode =
kui_term_get_keycode_from_cgdb_key(hard_coded_bindings[i].key);
val = kui_ms_register_map(map, hard_coded_bindings[i].key_seq, keycode);
if (val == -1)
return -1;
}
return 0;
}
/* Gets a single key sequence */
static int import_keyseq(struct tlist *list, struct kui_map_set *map)
{
int ret;
static char *term_buffer = (char *) NULL;
static char *buffer = (char *) NULL;
char *env;
if (term_buffer == 0) {
term_buffer = (char *) malloc(4080);
buffer = (char *) malloc(4080);
}
env = getenv("TERM");
if (!env)
return -1;
ret = tgetent(term_buffer, env);
if (ret == 0)
return -1;
else if (ret == -1)
return -1;
/* Set up the termcap seq */
list->tname_seq = tgetstr(list->tname, &buffer);
if (list->tname_seq == 0) {
/*fprintf ( stderr, "CAPNAME (%s) is not present in this TERM's termcap description\n", i->tname); */
} else if (list->tname_seq == (char *) -1) {
/* fprintf ( stderr, "CAPNAME (%s) is not a termcap string capability\n", i->tname); */
} else {
const char *keycode;
keycode = kui_term_get_keycode_from_cgdb_key(list->key);
ret = kui_ms_register_map(map, list->tname_seq, keycode);
if (ret == -1)
return -1;
}
/* Set up the terminfo seq */
list->tiname_seq = swin_tigetstr((char *)list->tiname);
if (list->tiname_seq == 0) {
/* fprintf ( stderr, "CAPNAME (%s) is not present in this TERM's terminfo description\n", i->tiname); */
} else if (list->tiname_seq == (char *) -1) {
/* fprintf ( stderr, "CAPNAME (%s) is not a terminfo string capability\n", i->tiname); */
} else {
const char *keycode;
keycode = kui_term_get_keycode_from_cgdb_key(list->key);
ret = kui_ms_register_map(map, list->tiname_seq, keycode);
if (ret == -1)
return -1;
}
return 0;
}
/**
* Read's in all of the termcap and terminfo key sequences.
*
* @return
* 0 on success, or -1 on error
*/
static int import_keyseqs(struct kui_map_set *map)
{
int i;
for (i = 0; seqlist[i].tname != NULL; i++)
import_keyseq(&seqlist[i], map);
return 0;
}
struct kui_map_set *kui_term_get_terminal_mappings(void)
{
struct kui_map_set *map;
map = kui_ms_create();
if (import_keyseqs(map) == -1)
return NULL;
if (!map)
return NULL;
/* Add all the extra's */
if (add_keybindings(map) == -1) {
/* TODO: Free map and return */
return NULL;
}
return map;
}
int kui_term_get_cgdb_key_from_keycode(const char *keycode)
{
int i;
for (i = 0; cgdb_keycodes[i].key != CGDB_KEY_ERROR; ++i) {
struct cgdb_keycode_data *ckey = &cgdb_keycodes[i];
if (strcasecmp(keycode, ckey->keycode) == 0)
return ckey->key;
}
return CGDB_KEY_ERROR;
}
const char *kui_term_get_string_from_key(int key)
{
int i;
for (i = 0; cgdb_keycodes[i].key != CGDB_KEY_ERROR; ++i) {
struct cgdb_keycode_data *ckey = &cgdb_keycodes[i];
int tkey = ckey->key;
if (key == tkey)
return ckey->key_as_string;
}
return NULL;
}
const char *kui_term_get_keycode_from_cgdb_key(int key)
{
int i;
for (i = 0; cgdb_keycodes[i].key != CGDB_KEY_ERROR; ++i) {
struct cgdb_keycode_data *ckey = &cgdb_keycodes[i];
int tkey = ckey->key;
if (key == tkey)
return ckey->keycode;
}
return NULL;
}
int kui_term_is_cgdb_key(int key)
{
if (key >= CGDB_KEY_ESC && key <= CGDB_KEY_ERROR)
return 1;
return 0;
}
const char *kui_term_get_ascii_char_sequence_from_key(int key)
{
int i;
if (key < CGDB_KEY_ESC || key >= CGDB_KEY_ERROR)
return NULL;
for (i = 0; hard_coded_bindings[i].key != CGDB_KEY_ERROR; ++i) {
if (key == hard_coded_bindings[i].key) {
return hard_coded_bindings[i].key_seq;
}
}
/* It wasn't one of the hardcoded values. The only thing left is the
* termcap or terminfo entries. Try the termcap first, since that's
* what readline uses. */
for (i = 0; seqlist[i].key != CGDB_KEY_ERROR; ++i) {
if (key == seqlist[i].key) {
if (seqlist[i].tname_seq)
return seqlist[i].tname_seq;
else if (seqlist[i].tiname_seq)
return seqlist[i].tiname_seq;
}
}
return NULL;
}
int kui_term_string_to_key_array(const char *string, int **cgdb_key_array)
{
int i;
enum state_type { KUI_MAP_STATE_NORMAL, KUI_MAP_STATE_MACRO } state;
char cur_char;
int length;
/* A buffer to store macros */
char *macro;
int macro_pos;
/* A buffer to store the outbound parameter */
int *local_cgdb_key_array;
int cgdb_key_array_pos;
/* Verify parameters */
if (!string)
return -1;
if (!cgdb_key_array)
return -1;
/* Initial stack parameters */
state = KUI_MAP_STATE_NORMAL;
length = strlen(string);
/*
* Assertion
*
* The macro and output buffer will always be smaller than the input
* buffer. So, to make life easy, they are always malloced to be the
* size of the input buffer. This may be a little wasteful, but it should
* not be to bad. Later, if a better ADT is available, use it here.
*/
/* Initialize the macro buffer */
macro = (char *) malloc(sizeof (char) * (length + 1));
macro_pos = 0;
/* Initialize the output buffer */
local_cgdb_key_array = (int *) malloc(sizeof (int) * (length + 1));
cgdb_key_array_pos = 0;
for (i = 0; i < length; i++) {
cur_char = string[i];
switch (state) {
case KUI_MAP_STATE_NORMAL:
/* Check for keycode start */
if (cur_char == '<') {
state = KUI_MAP_STATE_MACRO;
/* Capture macro */
macro[macro_pos++] = cur_char;
} else {
/* Place into output buffer */
local_cgdb_key_array[cgdb_key_array_pos++] = (int) cur_char;
}
break;
case KUI_MAP_STATE_MACRO:
/* Getting a macro start symbol within a macro means that from the
* first '<' until here was not a macro. Dump it into the
* output buffer and start fresh, assumming this is the start
* of a new macro.
*/
if (cur_char == '<') {
int j;
for (j = 0; j < macro_pos; ++j)
local_cgdb_key_array[cgdb_key_array_pos++] = macro[j];
macro_pos = 0;
}
/* Capture macro */
macro[macro_pos++] = cur_char;
if (cur_char == '>') {
int cgdb_key;
state = KUI_MAP_STATE_NORMAL;
/* Null terminate macro captured */
macro[macro_pos] = '\0';
/* Place captured macro into output buffer */
cgdb_key = kui_term_get_cgdb_key_from_keycode(macro);
if (cgdb_key == -1)
return -1;
/* The key doesn't exist, write the data into the
* buffer. */
if (cgdb_key == CGDB_KEY_ERROR) {
int j;
for (j = 0; j < macro_pos; ++j)
local_cgdb_key_array[cgdb_key_array_pos++] =
macro[j];
} else
local_cgdb_key_array[cgdb_key_array_pos++] = cgdb_key;
macro_pos = 0;
}
break;
}
}
/* This means that there was a '<' symbol not eventually followed by a '>'
* symbol. Therefore, everything from the '<' on is not part of a macro. It
* should be copied into the output buffer exactly the way it is.
*/
if (state == KUI_MAP_STATE_MACRO) {
int j;
for (j = 0; j < macro_pos; ++j)
local_cgdb_key_array[cgdb_key_array_pos++] = macro[j];
}
local_cgdb_key_array[cgdb_key_array_pos++] = 0;
*cgdb_key_array = local_cgdb_key_array;
free(macro);
macro = NULL;
return 0;
}
int kui_term_print_key_array(int *cgdb_key_array)
{
int i;
if (!cgdb_key_array)
return -1;
/* Display output buffer */
fprintf(stderr, "CGDB_KEY_ARRAY(");
for (i = 0; cgdb_key_array[i] != 0; i++) {
int is_ckey;
is_ckey = kui_term_is_cgdb_key(cgdb_key_array[i]);
if (is_ckey) {
fprintf(stderr, "%s",
kui_term_get_string_from_key(cgdb_key_array[i]));
} else {
fprintf(stderr, "%c", cgdb_key_array[i]);
}
}
fprintf(stderr, ")\r\n");
return 0;
}
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