diff options
Diffstat (limited to 'examples/common.c')
| -rw-r--r-- | examples/common.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/examples/common.c b/examples/common.c index a066c153c..0f25f3787 100644 --- a/examples/common.c +++ b/examples/common.c @@ -53,6 +53,33 @@ size_t is_prefixed(const char *str, const char *pfx) return strncmp(str, pfx, len) ? 0 : len; } +int optional_str_arg( + const char **out, struct args_info *args, const char *opt, const char *def) +{ + const char *found = args->argv[args->pos]; + size_t len = is_prefixed(found, opt); + + if (!len) + return 0; + + if (!found[len]) { + if (args->pos + 1 == args->argc) { + *out = def; + return 1; + } + args->pos += 1; + *out = args->argv[args->pos]; + return 1; + } + + if (found[len] == '=') { + *out = found + len + 1; + return 1; + } + + return 0; +} + int match_str_arg( const char **out, struct args_info *args, const char *opt) { |