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sys/shell: adding definition for deactiving prompt and/or echo in shell

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This commit is contained in:
Alexandre Abadie 2016-04-08 14:51:08 +02:00
parent b3a4a0f542
commit fdf12d01b3
1 changed files with 8 additions and 0 deletions
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8
sys/shell/shell.c
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@ -234,8 +234,10 @@ static int readline(char *buf, size_t size)
/* DOS newlines are handled like hitting enter twice, but empty lines are ignored. */
if (c == '\r' || c == '\n') {
*line_buf_ptr = '\0';
#ifndef SHELL_NO_ECHO
_putchar('\r');
_putchar('\n');
#endif
/* return 1 if line is empty, 0 otherwise */
return line_buf_ptr == buf;
@ -249,21 +251,27 @@ static int readline(char *buf, size_t size)
*--line_buf_ptr = '\0';
/* white-tape the character */
#ifndef SHELL_NO_ECHO
_putchar('\b');
_putchar(' ');
_putchar('\b');
#endif
}
else {
*line_buf_ptr++ = c;
#ifndef SHELL_NO_ECHO
_putchar(c);
#endif
}
}
}
static inline void print_prompt(void)
{
#ifndef SHELL_NO_PROMPT
_putchar('>');
_putchar(' ');
#endif
#ifdef MODULE_NEWLIB
fflush(stdout);