quinn-os/my-basic
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+added a help option to the shell.

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paladin-t 2016-03-29 16:22:41 +08:00
parent c65a92dfbd
commit dd9fed3692
3 changed files with 9 additions and 0 deletions
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3
HISTORY
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@ -1,3 +1,6 @@
Mar. 29 2016
Added a help option to the shell
Mar. 16 2016
Fixed an execution issue after a lambda
Fixed a cannot RETURN bug from a FOR loop in a sub routine

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output/my_basic.exe
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6
shell/main.c
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@ -862,6 +862,7 @@ static void _show_help(void) {
_printf(" %s -e \"expr\" - Evaluate an expression directly\n", _BIN_FILE_NAME);
_printf("\n");
_printf("Options:\n");
_printf(" -h - Show help information\n");
#if _USE_MEM_POOL
_printf(" -p n - Set memory pool threashold size, n is size in bytes\n");
#endif /* _USE_MEM_POOL */
@ -1028,6 +1029,7 @@ static bool_t _process_parameters(int argc, char* argv[]) {
int i = 1;
char* prog = 0;
bool_t eval = false;
bool_t help = false;
char* memp = 0;
char* diri = 0;
@ -1037,6 +1039,8 @@ static bool_t _process_parameters(int argc, char* argv[]) {
eval = true;
_CHECK_ARG(argc, i, "-e: Expression expected.\n");
prog = argv[++i];
} else if(!memcmp(argv[i] + 1, "h", 1)) {
help = true;
#if _USE_MEM_POOL
} else if(!memcmp(argv[i] + 1, "p", 1)) {
_CHECK_ARG(argc, i, "-p: Memory pool threashold size expected.\n");
@ -1069,6 +1073,8 @@ static bool_t _process_parameters(int argc, char* argv[]) {
_evaluate_expression(prog);
else if(prog)
_run_file(prog);
else if(help)
_show_help();
else
return false;