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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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109
term/terminfo.c
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@ -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