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scanner: support help and --help

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wayland-scanner without arguments prints out usage. With help or --help it
waits for stdin to supply something which isn't quite as informative as
printing out the help.

This patch also moves the strcmp for args up to have all of them in one
location.
This commit is contained in:
Peter Hutterer 2013-08-07 11:05:57 +10:00 • committed by Kristian Høgsberg
parent 81555350af
commit 2d1ed470d9
1 changed files with 23 additions and 6 deletions
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29
src/scanner.c
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@ -1158,9 +1158,22 @@ int main(int argc, char *argv[])
struct protocol protocol;
int len;
void *buf;
enum {
CLIENT_HEADER,
SERVER_HEADER,
CODE,
} mode;
if (argc != 2)
usage(EXIT_FAILURE);
else if (strcmp(argv[1], "help") == 0 || strcmp(argv[1], "--help") == 0)
usage(EXIT_SUCCESS);
else if (strcmp(argv[1], "client-header") == 0)
mode = CLIENT_HEADER;
else if (strcmp(argv[1], "server-header") == 0)
mode = SERVER_HEADER;
else if (strcmp(argv[1], "code") == 0)
mode = CODE;
wl_list_init(&protocol.interface_list);
protocol.type_index = 0;
@ -1193,12 +1206,16 @@ int main(int argc, char *argv[])
XML_ParserFree(ctx.parser);
if (strcmp(argv[1], "client-header") == 0) {
emit_header(&protocol, 0);
} else if (strcmp(argv[1], "server-header") == 0) {
emit_header(&protocol, 1);
} else if (strcmp(argv[1], "code") == 0) {
emit_code(&protocol);
switch(mode) {
case CLIENT_HEADER:
emit_header(&protocol, 0);
break;
case SERVER_HEADER:
emit_header(&protocol, 1);
break;
case CODE:
emit_code(&protocol);
break;
}
return 0;