/* add a character to a multi-character command. */
int
mca_char(int c)
{
switch (mca) {
case 0: /* not in a multicharacter command. */
case A_PREFIX: /* in the prefix of a command. */
return(NO_MCA);
case A_DIGIT:
/*
* Entering digits of a number.
* Terminated by a non-digit.
*/
if ((!isascii(c) || !isdigit(c)) &&
c != erase_char && c != kill_char && c != werase_char) {
/*
* Not part of the number.
* Treat as a normal command character.
*/
*cp = '\0';
number = atoi(cmdbuf);
CMD_RESET;
mca = 0;
return(NO_MCA);
}
break;
}
/*
* Any other multicharacter command
* is terminated by a newline.
*/
if (c == '\n' || c == '\r') {
exec_mca();
return(MCA_DONE);
}
/* append the char to the command buffer. */
if (cmd_char(c))
return(MCA_DONE);
return(MCA_MORE);
}
/*
* Handle a character of a multi-character command.
*/
static int
mca_char(int c)
{
int ret;
switch (mca) {
case 0:
/*
* We're not in a multicharacter command.
*/
return (NO_MCA);
case A_PREFIX:
/*
* In the prefix of a command.
* This not considered a multichar command
* (even tho it uses cmdbuf, etc.).
* It is handled in the commands() switch.
*/
return (NO_MCA);
case A_DIGIT:
/*
* Entering digits of a number.
* Terminated by a non-digit.
*/
if (!((c >= '0' && c <= '9') || c == '.') && editchar(c,
EC_PEEK|EC_NOHISTORY|EC_NOCOMPLETE|EC_NORIGHTLEFT) ==
A_INVALID) {
/*
* Not part of the number.
* End the number and treat this char
* as a normal command character.
*/
number = cmd_int(&fraction);
mca = 0;
cmd_accept();
return (NO_MCA);
}
break;
case A_OPT_TOGGLE:
ret = mca_opt_char(c);
if (ret != NO_MCA)
return (ret);
break;
case A_F_SEARCH:
case A_B_SEARCH:
case A_FILTER:
ret = mca_search_char(c);
if (ret != NO_MCA)
return (ret);
break;
default:
/* Other multicharacter command. */
break;
}
/*
* The multichar command is terminated by a newline.
*/
if (c == '\n' || c == '\r') {
/*
* Execute the command.
*/
exec_mca();
return (MCA_DONE);
}
/*
* Append the char to the command buffer.
*/
if (cmd_char(c) == CC_QUIT)
/*
* Abort the multi-char command.
*/
return (MCA_DONE);
if ((mca == A_F_BRACKET || mca == A_B_BRACKET) && len_cmdbuf() >= 2) {
/*
* Special case for the bracket-matching commands.
* Execute the command after getting exactly two
* characters from the user.
*/
exec_mca();
return (MCA_DONE);
}
/*
* Need another character.
*/
return (MCA_MORE);
}