kolibrios/programs/system/shell/modules/module_command.c
Rustem Gimadutdinov (rgimad) 68cf3e4293 SHELL 0.8.2
- big refactoring, now uses libc.obj
- added kfetch command

git-svn-id: svn://kolibrios.org@8827 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-06-12 21:34:41 +00:00

390 lines
11 KiB
C
Raw Blame History

void command_history_add() {
int i;
if ('\0' == CMD[0]) return;
CMD_NUM = -1;
for (i = 0; i < CMD_HISTORY_NUM_REAL; i++)
if ( 0 == strcmp( CMD_HISTORY[i], CMD ) )
return;
for (i = CMD_HISTORY_NUM_REAL; i > 0 ; i--)
strcpy(CMD_HISTORY[i], CMD_HISTORY[i-1]);
strcpy(CMD_HISTORY[0], CMD);
if (CMD_HISTORY_NUM_REAL < CMD_HISTORY_NUM-1)
CMD_HISTORY_NUM_REAL++;
}
char * insert_string( char s1[], unsigned int pos, const char s2[] )
{
unsigned int n1 = strlen( s1 );
unsigned int n2 = strlen( s2 );
if ( n1 < pos ) pos = n1;
unsigned int i;
for ( i = 0; i < n1 - pos; i++ )
{
s1[n1 + n2 - i - 1] = s1[n1 - i - 1];
}
for ( i = 0; i < n2; i++)
{
s1[pos+i] = s2[i];
}
s1[n1 + n2] = '\0';
return s1;
}
void command_get()
{
unsigned key;
unsigned i;
unsigned cmdLen = 0;
unsigned cmdPos = 0;
CMD[0] = '\0';
int clipNum; // number of clipboard slots
char* clipBuf; // clipboard buffer
char clipCopy[255+12];
for (;;) {
key = getch();
if ( 0 != (key & 0xff) ) {
key &= 0xff;
switch (key) {
case 27: // ESC
for (i = cmdPos; i < cmdLen; i++)
printf(" ");
for (i = cmdLen; i > 0; i--)
printf("%c %c", 8, 8);
cmdLen = 0;
cmdPos = 0;
CMD[0] = '\0';
break;
case 13: // ENTER
printf("\n\r");
command_history_add();
return;
case 8: // BACKSPACE
if (cmdPos > 0)
{
for (i = cmdPos-1; i < cmdLen; i++)
CMD[i] = CMD[i+1];
for (i = 0; i < cmdLen-cmdPos; i++)
printf (" ");
for (i = 0; i < cmdLen; i++)
printf ("%c %c", 8, 8);
printf("%s", CMD);
for (i = 0; i < cmdLen-cmdPos; i++)
printf("%c", 8);
cmdPos--;
cmdLen--;
}
break;
case 9: // TAB
break;
case 22: // Ctrl+V
clipNum = _ksys_clip_num();
if (clipNum > 0)
{
clipBuf = _ksys_clip_get(clipNum-1);
// printf("Length: %d, Type: %d, Encoding: %d\n", (int) *clipBuf, (int)*(clipBuf+4), (int)*(clipBuf+8));
if ( (int) *clipBuf > 0 ) // is clipboard empty?
{
if ((int)*(clipBuf+4)==0) // text?
{
if ((int)*(clipBuf+8)==1) // 866 encoding?
{
// clear previous text
for (i = cmdPos; i < cmdLen; i++)
printf(" ");
for (i = cmdLen; i > 0; i--)
printf("%c %c", 8, 8);
char *pasteText = clipBuf + 12;
int pasteLen = strlen(pasteText);
insert_string(CMD, cmdPos, pasteText);
cmdLen = strlen(CMD);
cmdPos += pasteLen;
printf("%s", CMD);
for (i = 0; i < cmdLen-cmdPos; i++) printf("%c", 8); // rewind the internal console cursor
}
}
}
}
break;
case 3: // Ctrl+C
if ( cmdLen > 0 )
{
*clipCopy = 12 + cmdLen;
*(clipCopy+4)=0;
*(clipCopy+8)=1;
for (i = 0; i <= cmdLen; i++)
*(clipCopy+12+i) = CMD[i];
_ksys_clip_set(12+cmdLen, clipCopy);
}
break;
default:
if (cmdLen < 255)
{
if ( kol_key_control() & 0x40 ) // <20><20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CapsLock
if ( (kol_key_control() & 1) || (kol_key_control() & 2)) // <20><20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
key = tolower(key);
else
key = toupper(key);
for (i = cmdLen+1; i > cmdPos; i--)
CMD[i] = CMD[i-1];
CMD[cmdPos] = key;
for (i = cmdPos; i > 0; i--)
printf("%c %c", 8, 8);
printf("%s", CMD);
for (i = 0; i < cmdLen-cmdPos; i++)
printf("%c", 8);
cmdPos++;
cmdLen++;
}
break;
}
}
else
{
key = (key>>8)&0xff;
switch (key)
{
case 83: // Del
if (cmdPos < cmdLen)
{
for (i = cmdPos; i < cmdLen; i++)
CMD[i] = CMD[i+1];
for (i = 0; i < cmdLen-cmdPos; i++)
printf(" ");
for (i = 0; i < cmdLen-cmdPos; i++)
printf("%c", 8);
for (i = cmdPos; i < cmdLen; i++)
printf("%c", CMD[i]);
for (i = 0; i < cmdLen-cmdPos; i++)
printf("%c", 8);
cmdLen--;
}
break;
case 0x47: // Home
// move internal cursor and cmdPos to the beginning of the line
for (;cmdPos > 0; cmdPos--) {printf("%c", 8);}
break;
case 0x4F: // End
// move internal cursor and cmdPos to the end of the line
for (;cmdPos < cmdLen; cmdPos++) {printf("%c", CMD[cmdPos]);}
break;
case 75: // Left
if (cmdPos > 0)
{
printf("%c", 8);
cmdPos--;
}
break;
case 77: // Right
if (cmdPos < cmdLen)
{
printf("%c", CMD[cmdPos]);
cmdPos++;
}
break;
case 72: // Up
if (CMD_HISTORY_NUM_REAL > 0 && CMD_NUM >= -1)
{
for (i = cmdPos; i < cmdLen; i++)
printf(" ");
for (i = cmdLen; i > 0; i--)
printf("%c %c", 8, 8);
if (CMD_NUM < CMD_HISTORY_NUM_REAL-1)
CMD_NUM++;
/* else
CMD_NUM = 0;
*/
printf("%s", CMD_HISTORY[CMD_NUM]);
strcpy(CMD, CMD_HISTORY[CMD_NUM]);
cmdLen = strlen(CMD);
cmdPos = strlen(CMD);
}
break;
case 80: // Down
if (CMD_HISTORY_NUM_REAL > 0 && CMD_NUM >= 0)
{
for (i = cmdPos; i < cmdLen; i++)
printf(" ");
for (i = cmdLen; i > 0; i--)
printf("%c %c", 8, 8);
if (CMD_NUM > 0)
CMD_NUM--;
/* else
CMD_NUM = CMD_HISTORY_NUM_REAL-1;
*/
printf("%s", CMD_HISTORY[CMD_NUM]);
strcpy(CMD, CMD_HISTORY[CMD_NUM]);
cmdLen = strlen(CMD);
cmdPos = strlen(CMD);
}
break;
case 0: // console window closed
cmd_exit(NULL);
} // switch end
} // if end
} // for end
}
int command_get_cmd(char cmd[])
{
unsigned i, len;
int quote = 0;
if (CMD[0]=='"')
quote = 1;
if (quote == 0)
{
for (i=0;;i++)
{
cmd[i] = CMD[i];
if (0 == cmd[i])
return i;
if ( iswhite(cmd[i]) )
{
cmd[i] = '\0';
break;
}
}
return i+1;
}
else
{
len = 0;
for (i=1;;i++)
{
cmd[len] = CMD[i];
if (0 == cmd[len])
{
i--;
break;
}
if ( cmd[len] == '"' )
{
cmd[len] = '\0';
break;
}
len++;
}
trim(cmd);
return i+1;
}
}
typedef int (*handler1_t)(char* arg);
void command_execute()
{
char cmd[256];
char args[256];
unsigned arg;
int i;
int result;
trim(CMD);
arg = command_get_cmd(cmd);
if ( !strlen(cmd) )
return;
strcpy(args, CMD+arg);
trim(args);
for (i = 0; i < NUM_OF_CMD; i++) {
if (!strcmp(cmd, COMMANDS[i].name)) {
result = ((handler1_t)COMMANDS[i].handler)(args);
if (result == FALSE) {
printf(UNKNOWN_CMD_ERROR);
}
return;
}
}
if ( -1 != alias_search(CMD) ) {
strcpy(CMD, ALIASES+64*1024+256*alias_search(CMD));
command_execute();
return;
}
executable_run(cmd, args);
}