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-rw-r--r--driver-csi.c156
-rw-r--r--termkey-internal.h22
-rw-r--r--termkey.c116
3 files changed, 148 insertions, 146 deletions
diff --git a/driver-csi.c b/driver-csi.c
index c99c90f..d07c404 100644
--- a/driver-csi.c
+++ b/driver-csi.c
@@ -4,19 +4,9 @@
#include <stdio.h>
#include <string.h>
-struct keyinfo {
- termkey_type type;
- termkey_keysym sym;
- int modifier_mask;
- int modifier_set;
-};
-
typedef struct {
termkey_t *tk;
- // There are 32 C0 codes
- struct keyinfo c0[32];
-
// There are 64 codes 0x40 - 0x7F
struct keyinfo csi_ss3s[64];
struct keyinfo ss3s[64];
@@ -26,12 +16,10 @@ typedef struct {
struct keyinfo *csifuncs;
} termkey_csi;
-static termkey_keysym register_c0(termkey_csi *csi, termkey_keysym sym, unsigned char ctrl, const char *name);
static termkey_keysym register_csi_ss3(termkey_csi *csi, termkey_type type, termkey_keysym sym, unsigned char cmd, const char *name);
static termkey_keysym register_ss3kpalt(termkey_csi *csi, termkey_type type, termkey_keysym sym, unsigned char cmd, const char *name, char kpalt);
static termkey_keysym register_csifunc(termkey_csi *csi, termkey_type type, termkey_keysym sym, int number, const char *name);
-static termkey_keysym register_c0_full(termkey_csi *csi, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char ctrl, const char *name);
static termkey_keysym register_csi_ss3_full(termkey_csi *csi, termkey_type type, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char cmd, const char *name);
static termkey_keysym register_ss3kpalt_full(termkey_csi *csi, termkey_type type, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char cmd, const char *name, char kpalt);
static termkey_keysym register_csifunc_full(termkey_csi *csi, termkey_type type, termkey_keysym sym, int modifier_set, int modifier_mask, int number, const char *name);
@@ -44,10 +32,6 @@ static void *new_driver(termkey_t *tk)
int i;
- for(i = 0; i < 32; i++) {
- csi->c0[i].sym = TERMKEY_SYM_UNKNOWN;
- }
-
for(i = 0; i < 64; i++) {
csi->csi_ss3s[i].sym = TERMKEY_SYM_UNKNOWN;
csi->ss3s[i].sym = TERMKEY_SYM_UNKNOWN;
@@ -61,11 +45,6 @@ static void *new_driver(termkey_t *tk)
for(i = 0; i < csi->ncsifuncs; i++)
csi->csifuncs[i].sym = TERMKEY_SYM_UNKNOWN;
- register_c0(csi, TERMKEY_SYM_BACKSPACE, 0x08, "Backspace");
- register_c0(csi, TERMKEY_SYM_TAB, 0x09, "Tab");
- register_c0(csi, TERMKEY_SYM_ENTER, 0x0d, "Enter");
- register_c0(csi, TERMKEY_SYM_ESCAPE, 0x1b, "Escape");
-
register_csi_ss3(csi, TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_UP, 'A', "Up");
register_csi_ss3(csi, TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_DOWN, 'B', "Down");
register_csi_ss3(csi, TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_RIGHT, 'C', "Right");
@@ -143,99 +122,6 @@ static void free_driver(void *private)
#define UTF8_INVALID 0xFFFD
-static int utf8_seqlen(int codepoint)
-{
- if(codepoint < 0x0000080) return 1;
- if(codepoint < 0x0000800) return 2;
- if(codepoint < 0x0010000) return 3;
- if(codepoint < 0x0200000) return 4;
- if(codepoint < 0x4000000) return 5;
- return 6;
-}
-
-static void fill_utf8(termkey_key *key)
-{
- int codepoint = key->code.codepoint;
- int nbytes = utf8_seqlen(codepoint);
-
- key->utf8[nbytes] = 0;
-
- // This is easier done backwards
- int b = nbytes;
- while(b > 1) {
- b--;
- key->utf8[b] = 0x80 | (codepoint & 0x3f);
- codepoint >>= 6;
- }
-
- switch(nbytes) {
- case 1: key->utf8[0] = (codepoint & 0x7f); break;
- case 2: key->utf8[0] = 0xc0 | (codepoint & 0x1f); break;
- case 3: key->utf8[0] = 0xe0 | (codepoint & 0x0f); break;
- case 4: key->utf8[0] = 0xf0 | (codepoint & 0x07); break;
- case 5: key->utf8[0] = 0xf8 | (codepoint & 0x03); break;
- case 6: key->utf8[0] = 0xfc | (codepoint & 0x01); break;
- }
-}
-
-static inline void do_codepoint(termkey_t *tk, int codepoint, termkey_key *key)
-{
- termkey_csi *csi = tk->driver_info;
-
- if(codepoint < 0x20) {
- // C0 range
- key->code.codepoint = 0;
- key->modifiers = 0;
-
- if(!(tk->flags & TERMKEY_FLAG_NOINTERPRET) && csi->c0[codepoint].sym != TERMKEY_SYM_UNKNOWN) {
- key->code.sym = csi->c0[codepoint].sym;
- key->modifiers |= csi->c0[codepoint].modifier_set;
- }
-
- if(!key->code.sym) {
- key->type = TERMKEY_TYPE_UNICODE;
- key->code.codepoint = codepoint + 0x40;
- key->modifiers = TERMKEY_KEYMOD_CTRL;
- }
- else {
- key->type = TERMKEY_TYPE_KEYSYM;
- }
- }
- else if(codepoint == 0x20 && !(tk->flags & TERMKEY_FLAG_NOINTERPRET)) {
- // ASCII space
- key->type = TERMKEY_TYPE_KEYSYM;
- key->code.sym = TERMKEY_SYM_SPACE;
- key->modifiers = 0;
- }
- else if(codepoint == 0x7f && !(tk->flags & TERMKEY_FLAG_NOINTERPRET)) {
- // ASCII DEL
- key->type = TERMKEY_TYPE_KEYSYM;
- key->code.sym = TERMKEY_SYM_DEL;
- key->modifiers = 0;
- }
- else if(codepoint >= 0x20 && codepoint < 0x80) {
- // ASCII lowbyte range
- key->type = TERMKEY_TYPE_UNICODE;
- key->code.codepoint = codepoint;
- key->modifiers = 0;
- }
- else if(codepoint >= 0x80 && codepoint < 0xa0) {
- // UTF-8 never starts with a C1 byte. So we can be sure of these
- key->type = TERMKEY_TYPE_UNICODE;
- key->code.codepoint = codepoint - 0x40;
- key->modifiers = TERMKEY_KEYMOD_CTRL|TERMKEY_KEYMOD_ALT;
- }
- else {
- // UTF-8 codepoint
- key->type = TERMKEY_TYPE_UNICODE;
- key->code.codepoint = codepoint;
- key->modifiers = 0;
- }
-
- if(key->type == TERMKEY_TYPE_UNICODE)
- fill_utf8(key);
-}
-
#define CHARAT(i) (tk->buffer[tk->buffstart + (i)])
static termkey_result getkey_csi(termkey_t *tk, size_t introlen, termkey_key *key)
@@ -254,7 +140,7 @@ static termkey_result getkey_csi(termkey_t *tk, size_t introlen, termkey_key *ke
if(tk->waittime)
return TERMKEY_RES_AGAIN;
- do_codepoint(tk, '[', key);
+ (*tk->method.emit_codepoint)(tk, '[', key);
key->modifiers |= TERMKEY_KEYMOD_ALT;
(*tk->method.eat_bytes)(tk, introlen);
return TERMKEY_RES_KEY;
@@ -310,7 +196,7 @@ static termkey_result getkey_csi(termkey_t *tk, size_t introlen, termkey_key *ke
if(arg[0] == 27) {
int mod = key->modifiers;
- do_codepoint(tk, arg[2], key);
+ (*tk->method.emit_codepoint)(tk, arg[2], key);
key->modifiers |= mod;
}
else if(arg[0] >= 0 && arg[0] < csi->ncsifuncs) {
@@ -347,7 +233,7 @@ static termkey_result getkey_ss3(termkey_t *tk, size_t introlen, termkey_key *ke
if(tk->waittime)
return TERMKEY_RES_AGAIN;
- do_codepoint(tk, 'O', key);
+ (*tk->method.emit_codepoint)(tk, 'O', key);
key->modifiers |= TERMKEY_KEYMOD_ALT;
(*tk->method.eat_bytes)(tk, tk->buffcount);
return TERMKEY_RES_KEY;
@@ -402,7 +288,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
if(tk->waittime)
return TERMKEY_RES_AGAIN;
- do_codepoint(tk, b0, key);
+ (*tk->method.emit_codepoint)(tk, b0, key);
(*tk->method.eat_bytes)(tk, 1);
return TERMKEY_RES_KEY;
}
@@ -416,7 +302,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
return getkey_ss3(tk, 2, key);
if(b1 == 0x1b) {
- do_codepoint(tk, b0, key);
+ (*tk->method.emit_codepoint)(tk, b0, key);
(*tk->method.eat_bytes)(tk, 1);
return TERMKEY_RES_KEY;
}
@@ -448,7 +334,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
}
else if(b0 < 0xa0) {
// Single byte C0, G0 or C1 - C1 is never UTF-8 initial byte
- do_codepoint(tk, b0, key);
+ (*tk->method.emit_codepoint)(tk, b0, key);
(*tk->method.eat_bytes)(tk, 1);
return TERMKEY_RES_KEY;
}
@@ -462,7 +348,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
if(b0 < 0xc0) {
// Starts with a continuation byte - that's not right
- do_codepoint(tk, UTF8_INVALID, key);
+ (*tk->method.emit_codepoint)(tk, UTF8_INVALID, key);
(*tk->method.eat_bytes)(tk, 1);
return TERMKEY_RES_KEY;
}
@@ -487,7 +373,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
codepoint = b0 & 0x01;
}
else {
- do_codepoint(tk, UTF8_INVALID, key);
+ (*tk->method.emit_codepoint)(tk, UTF8_INVALID, key);
(*tk->method.eat_bytes)(tk, 1);
return TERMKEY_RES_KEY;
}
@@ -498,7 +384,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
for(int b = 1; b < nbytes; b++) {
unsigned char cb = CHARAT(b);
if(cb < 0x80 || cb >= 0xc0) {
- do_codepoint(tk, UTF8_INVALID, key);
+ (*tk->method.emit_codepoint)(tk, UTF8_INVALID, key);
(*tk->method.eat_bytes)(tk, b - 1);
return TERMKEY_RES_KEY;
}
@@ -517,7 +403,7 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
codepoint == 0xFFFF)
codepoint = UTF8_INVALID;
- do_codepoint(tk, codepoint, key);
+ (*tk->method.emit_codepoint)(tk, codepoint, key);
(*tk->method.eat_bytes)(tk, nbytes);
return TERMKEY_RES_KEY;
}
@@ -538,28 +424,6 @@ static termkey_result getkey(termkey_t *tk, termkey_key *key)
return TERMKEY_SYM_NONE;
}
-static termkey_keysym register_c0(termkey_csi *csi, termkey_keysym sym, unsigned char ctrl, const char *name)
-{
- return register_c0_full(csi, sym, 0, 0, ctrl, name);
-}
-
-static termkey_keysym register_c0_full(termkey_csi *csi, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char ctrl, const char *name)
-{
- if(ctrl >= 0x20) {
- fprintf(stderr, "Cannot register C0 key at ctrl 0x%02x - out of bounds\n", ctrl);
- return -1;
- }
-
- if(name)
- sym = termkey_register_keyname(csi->tk, sym, name);
-
- csi->c0[ctrl].sym = sym;
- csi->c0[ctrl].modifier_set = modifier_set;
- csi->c0[ctrl].modifier_mask = modifier_mask;
-
- return sym;
-}
-
static termkey_keysym register_csi_ss3(termkey_csi *csi, termkey_type type, termkey_keysym sym, unsigned char cmd, const char *name)
{
return register_csi_ss3_full(csi, type, sym, 0, 0, cmd, name);
diff --git a/termkey-internal.h b/termkey-internal.h
index 271e628..9abc43d 100644
--- a/termkey-internal.h
+++ b/termkey-internal.h
@@ -13,6 +13,13 @@ struct termkey_driver
termkey_result (*getkey)(termkey_t *tk, termkey_key *key);
};
+struct keyinfo {
+ termkey_type type;
+ termkey_keysym sym;
+ int modifier_mask;
+ int modifier_set;
+};
+
struct termkey {
int fd;
int flags;
@@ -31,6 +38,9 @@ struct termkey {
int nkeynames;
const char **keynames;
+ // There are 32 C0 codes
+ struct keyinfo c0[32];
+
struct termkey_driver driver;
void *driver_info;
@@ -38,9 +48,21 @@ struct termkey {
// want exported as real symbols in the library
struct {
void (*eat_bytes)(termkey_t *tk, size_t count);
+ void (*emit_codepoint)(termkey_t *tk, int codepoint, termkey_key *key);
} method;
};
extern struct termkey_driver termkey_driver_csi;
+// Keep this here for now since it's tiny
+static inline int utf8_seqlen(int codepoint)
+{
+ if(codepoint < 0x0000080) return 1;
+ if(codepoint < 0x0000800) return 2;
+ if(codepoint < 0x0010000) return 3;
+ if(codepoint < 0x0200000) return 4;
+ if(codepoint < 0x4000000) return 5;
+ return 6;
+}
+
#endif
diff --git a/termkey.c b/termkey.c
index e0a110d..ac03b2b 100644
--- a/termkey.c
+++ b/termkey.c
@@ -15,6 +15,10 @@ static struct termkey_driver *drivers[] = {
// Forwards for the "protected" methods
static void eat_bytes(termkey_t *tk, size_t count);
+static void emit_codepoint(termkey_t *tk, int codepoint, termkey_key *key);
+
+static termkey_keysym register_c0(termkey_t *tk, termkey_keysym sym, unsigned char ctrl, const char *name);
+static termkey_keysym register_c0_full(termkey_t *tk, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char ctrl, const char *name);
termkey_t *termkey_new_full(int fd, int flags, size_t buffsize, int waittime)
{
@@ -67,7 +71,16 @@ termkey_t *termkey_new_full(int fd, int flags, size_t buffsize, int waittime)
for(i = 0; i < tk->nkeynames; i++)
tk->keynames[i] = NULL;
+ for(i = 0; i < 32; i++)
+ tk->c0[i].sym = TERMKEY_SYM_NONE;
+
tk->method.eat_bytes = &eat_bytes;
+ tk->method.emit_codepoint = &emit_codepoint;
+
+ register_c0(tk, TERMKEY_SYM_BACKSPACE, 0x08, "Backspace");
+ register_c0(tk, TERMKEY_SYM_TAB, 0x09, "Tab");
+ register_c0(tk, TERMKEY_SYM_ENTER, 0x0d, "Enter");
+ register_c0(tk, TERMKEY_SYM_ESCAPE, 0x1b, "Escape");
for(i = 0; drivers[i]; i++) {
void *driver_info = (*drivers[i]->new_driver)(tk);
@@ -157,6 +170,87 @@ static void eat_bytes(termkey_t *tk, size_t count)
}
}
+static void fill_utf8(termkey_key *key)
+{
+ int codepoint = key->code.codepoint;
+ int nbytes = utf8_seqlen(codepoint);
+
+ key->utf8[nbytes] = 0;
+
+ // This is easier done backwards
+ int b = nbytes;
+ while(b > 1) {
+ b--;
+ key->utf8[b] = 0x80 | (codepoint & 0x3f);
+ codepoint >>= 6;
+ }
+
+ switch(nbytes) {
+ case 1: key->utf8[0] = (codepoint & 0x7f); break;
+ case 2: key->utf8[0] = 0xc0 | (codepoint & 0x1f); break;
+ case 3: key->utf8[0] = 0xe0 | (codepoint & 0x0f); break;
+ case 4: key->utf8[0] = 0xf0 | (codepoint & 0x07); break;
+ case 5: key->utf8[0] = 0xf8 | (codepoint & 0x03); break;
+ case 6: key->utf8[0] = 0xfc | (codepoint & 0x01); break;
+ }
+}
+
+static void emit_codepoint(termkey_t *tk, int codepoint, termkey_key *key)
+{
+ if(codepoint < 0x20) {
+ // C0 range
+ key->code.codepoint = 0;
+ key->modifiers = 0;
+
+ if(!(tk->flags & TERMKEY_FLAG_NOINTERPRET) && tk->c0[codepoint].sym != TERMKEY_SYM_UNKNOWN) {
+ key->code.sym = tk->c0[codepoint].sym;
+ key->modifiers |= tk->c0[codepoint].modifier_set;
+ }
+
+ if(!key->code.sym) {
+ key->type = TERMKEY_TYPE_UNICODE;
+ key->code.codepoint = codepoint + 0x40;
+ key->modifiers = TERMKEY_KEYMOD_CTRL;
+ }
+ else {
+ key->type = TERMKEY_TYPE_KEYSYM;
+ }
+ }
+ else if(codepoint == 0x20 && !(tk->flags & TERMKEY_FLAG_NOINTERPRET)) {
+ // ASCII space
+ key->type = TERMKEY_TYPE_KEYSYM;
+ key->code.sym = TERMKEY_SYM_SPACE;
+ key->modifiers = 0;
+ }
+ else if(codepoint == 0x7f && !(tk->flags & TERMKEY_FLAG_NOINTERPRET)) {
+ // ASCII DEL
+ key->type = TERMKEY_TYPE_KEYSYM;
+ key->code.sym = TERMKEY_SYM_DEL;
+ key->modifiers = 0;
+ }
+ else if(codepoint >= 0x20 && codepoint < 0x80) {
+ // ASCII lowbyte range
+ key->type = TERMKEY_TYPE_UNICODE;
+ key->code.codepoint = codepoint;
+ key->modifiers = 0;
+ }
+ else if(codepoint >= 0x80 && codepoint < 0xa0) {
+ // UTF-8 never starts with a C1 byte. So we can be sure of these
+ key->type = TERMKEY_TYPE_UNICODE;
+ key->code.codepoint = codepoint - 0x40;
+ key->modifiers = TERMKEY_KEYMOD_CTRL|TERMKEY_KEYMOD_ALT;
+ }
+ else {
+ // UTF-8 codepoint
+ key->type = TERMKEY_TYPE_UNICODE;
+ key->code.codepoint = codepoint;
+ key->modifiers = 0;
+ }
+
+ if(key->type == TERMKEY_TYPE_UNICODE)
+ fill_utf8(key);
+}
+
termkey_result termkey_getkey(termkey_t *tk, termkey_key *key)
{
return (*tk->driver.getkey)(tk, key);
@@ -273,6 +367,28 @@ const char *termkey_get_keyname(termkey_t *tk, termkey_keysym sym)
return "UNKNOWN";
}
+static termkey_keysym register_c0(termkey_t *tk, termkey_keysym sym, unsigned char ctrl, const char *name)
+{
+ return register_c0_full(tk, sym, 0, 0, ctrl, name);
+}
+
+static termkey_keysym register_c0_full(termkey_t *tk, termkey_keysym sym, int modifier_set, int modifier_mask, unsigned char ctrl, const char *name)
+{
+ if(ctrl >= 0x20) {
+ fprintf(stderr, "Cannot register C0 key at ctrl 0x%02x - out of bounds\n", ctrl);
+ return -1;
+ }
+
+ if(name)
+ sym = termkey_register_keyname(tk, sym, name);
+
+ tk->c0[ctrl].sym = sym;
+ tk->c0[ctrl].modifier_set = modifier_set;
+ tk->c0[ctrl].modifier_mask = modifier_mask;
+
+ return sym;
+}
+
size_t termkey_snprint_key(termkey_t *tk, char *buffer, size_t len, termkey_key *key, termkey_format format)
{
size_t pos = 0;