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move ANSI code recognition to terminfo.mod

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-05-06 21:11:59 +02:00
parent 42d2c16b39
commit e903ddec1c
7 changed files with 136 additions and 109 deletions
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122
term/ieee1275/ofconsole.c
View file

@ -22,6 +22,7 @@
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/time.h>
#include <grub/terminfo.h>
#include <grub/machine/console.h>
#include <grub/ieee1275/ieee1275.h>
@ -34,7 +35,7 @@ static grub_uint8_t grub_ofconsole_height;
static int grub_curr_x;
static int grub_curr_y;
static int grub_keybuf;
static int grub_keybuf[GRUB_TERMINFO_READKEY_MAX_LEN];
static int grub_buflen;
struct color
@ -149,116 +150,28 @@ grub_ofconsole_getcolor (grub_uint8_t *normal_color, grub_uint8_t *highlight_col
*highlight_color = grub_ofconsole_highlight_color;
}
#define ANSI_C0 0x9b
static int
grub_ofconsole_readkey (int *key)
readkey (void)
{
grub_uint8_t c;
grub_ssize_t actual = 0;
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
if (actual > 0)
switch(c)
{
case 0x7f:
/* Backspace: Ctrl-h. */
c = '\b';
break;
case ANSI_C0:
case '\e':
{
grub_uint64_t start;
if (c == '\e')
{
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
/* On 9600 we have to wait up to 12 milliseconds. */
start = grub_get_time_ms ();
while (actual <= 0 && grub_get_time_ms () - start < 12)
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
if (actual <= 0)
{
*key = '\e';
return 1;
}
if (c != '[')
return 0;
}
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
/* On 9600 we have to wait up to 12 milliseconds. */
start = grub_get_time_ms ();
while (actual <= 0 && grub_get_time_ms () - start < 12)
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
if (actual <= 0)
return 0;
switch (c)
{
case 'A':
/* Up: Ctrl-p. */
c = GRUB_TERM_UP;
break;
case 'B':
/* Down: Ctrl-n. */
c = GRUB_TERM_DOWN;
break;
case 'C':
/* Right: Ctrl-f. */
c = GRUB_TERM_RIGHT;
break;
case 'D':
/* Left: Ctrl-b. */
c = GRUB_TERM_LEFT;
break;
case '3':
{
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
/* On 9600 we have to wait up to 12 milliseconds. */
start = grub_get_time_ms ();
while (actual <= 0 && grub_get_time_ms () - start < 12)
grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
if (actual <= 0)
return 0;
/* Delete: Ctrl-d. */
if (c == '~')
c = GRUB_TERM_DC;
else
return 0;
break;
}
break;
}
}
}
*key = c;
return actual > 0;
return c;
return -1;
}
static int
grub_ofconsole_checkkey (void)
{
int key;
int read;
if (grub_buflen)
return 1;
read = grub_ofconsole_readkey (&key);
if (read)
{
grub_keybuf = key;
grub_buflen = 1;
return 1;
}
grub_terminfo_readkey (grub_keybuf, &grub_buflen, readkey);
if (grub_buflen)
return 1;
return -1;
}
@ -266,17 +179,14 @@ grub_ofconsole_checkkey (void)
static int
grub_ofconsole_getkey (void)
{
int key;
int ret;
while (! grub_buflen)
grub_terminfo_readkey (grub_keybuf, &grub_buflen, readkey);
if (grub_buflen)
{
grub_buflen =0;
return grub_keybuf;
}
while (! grub_ofconsole_readkey (&key));
return key;
ret = grub_keybuf[0];
grub_buflen--;
grub_memmove (grub_keybuf, grub_keybuf + 1, grub_buflen);
return ret;
}
static grub_uint16_t

109
term/terminfo.c
View file

@ -32,6 +32,7 @@
#include <grub/tparm.h>
#include <grub/command.h>
#include <grub/i18n.h>
#include <grub/time.h>
struct terminfo
{
@ -167,6 +168,114 @@ grub_terminfo_cursor_off (grub_term_output_t oterm)
putstr (grub_terminfo_tparm (term.cursor_off), oterm);
}
#define ANSI_C0 0x9b
void
grub_terminfo_readkey (int *keys, int *len, int (*readkey) (void))
{
int c;
#define CONTINUE_READ \
{ \
grub_uint64_t start; \
/* On 9600 we have to wait up to 12 milliseconds. */ \
start = grub_get_time_ms (); \
do \
c = readkey (); \
while (c == -1 && grub_get_time_ms () - start < 12); \
if (c == -1) \
return; \
\
keys[*len] = c; \
(*len)++; \
}
c = readkey ();
if (c < 0)
{
*len = 0;
return;
}
*len = 1;
keys[0] = c;
if (c != ANSI_C0 && c != '\e')
{
/* Backspace: Ctrl-h. */
if (c == 0x7f)
c = '\b';
*len = 1;
keys[0] = c;
return;
}
{
static struct
{
char key;
char ascii;
}
three_code_table[] =
{
{'4', GRUB_TERM_DC},
{'A', GRUB_TERM_UP},
{'B', GRUB_TERM_DOWN},
{'C', GRUB_TERM_RIGHT},
{'D', GRUB_TERM_LEFT},
{'F', GRUB_TERM_END},
{'H', GRUB_TERM_HOME},
{'K', GRUB_TERM_END},
{'P', GRUB_TERM_DC},
{'?', GRUB_TERM_PPAGE},
{'/', GRUB_TERM_NPAGE}
};
static struct
{
char key;
char ascii;
}
four_code_table[] =
{
{'1', GRUB_TERM_HOME},
{'3', GRUB_TERM_DC},
{'5', GRUB_TERM_PPAGE},
{'6', GRUB_TERM_NPAGE}
};
unsigned i;
if (c == '\e')
{
CONTINUE_READ;
if (c != '[')
return;
}
CONTINUE_READ;
for (i = 0; i < ARRAY_SIZE (three_code_table); i++)
if (three_code_table[i].key == c)
{
keys[0] = three_code_table[i].ascii;
*len = 1;
return;
}
for (i = 0; i < ARRAY_SIZE (four_code_table); i++)
if (four_code_table[i].key == c)
{
CONTINUE_READ;
if (c != '~')
return;
keys[0] = three_code_table[i].ascii;
*len = 1;
return;
}
return;
}
#undef CONTINUE_READ
}
/* GRUB Command. */
static grub_err_t