diff options
Diffstat (limited to 'miscutils/dc.c')
| -rw-r--r-- | miscutils/dc.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/miscutils/dc.c b/miscutils/dc.c index b080ba1..6903761 100644 --- a/miscutils/dc.c +++ b/miscutils/dc.c @@ -15,7 +15,7 @@ //usage: "p - print top of the stack (without popping),\n" //usage: "f - print entire stack,\n" //usage: "o - pop the value and set output radix (must be 10, 16, 8 or 2).\n" -//usage: "Examples: 'dc 2 2 add' -> 4, 'dc 8 8 * 2 2 + /' -> 16" +//usage: "Examples: 'dc 2 2 add p' -> 4, 'dc 8 8 * 2 2 + / p' -> 16" //usage: //usage:#define dc_example_usage //usage: "$ dc 2 2 + p\n" @@ -245,19 +245,6 @@ static void stack_machine(const char *argument) bb_error_msg_and_die("syntax error at '%s'", argument); } -/* return pointer to next token in buffer and set *buffer to one char - * past the end of the above mentioned token - */ -static char *get_token(char **buffer) -{ - char *current = skip_whitespace(*buffer); - if (*current != '\0') { - *buffer = skip_non_whitespace(current); - return current; - } - return NULL; -} - int dc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int dc_main(int argc UNUSED_PARAM, char **argv) { @@ -272,16 +259,18 @@ int dc_main(int argc UNUSED_PARAM, char **argv) while ((line = xmalloc_fgetline(stdin)) != NULL) { cursor = line; while (1) { - token = get_token(&cursor); - if (!token) + token = skip_whitespace(cursor); + if (*token == '\0') break; - *cursor++ = '\0'; + cursor = skip_non_whitespace(token); + if (*cursor != '\0') + *cursor++ = '\0'; stack_machine(token); } free(line); } } else { - // why? it breaks "dc -2 2 * p" + // why? it breaks "dc -2 2 + p" //if (argv[0][0] == '-') // bb_show_usage(); do { |