From b3e4417897f5b27883513c4714f7e84e377b5f5b Mon Sep 17 00:00:00 2001 From: Mark Walters Date: Sat, 10 Mar 2012 11:05:32 +0000 Subject: [PATCH] cli: Parsing. Allow true/false parameter for boolean options. Allow NOTMUCH_OPT_BOOLEAN to take a true or false parameter. In particular it allows the user to turn off a boolean option with --option=false. --- command-line-arguments.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) diff --git a/command-line-arguments.c b/command-line-arguments.c index e7114143..76b185f8 100644 --- a/command-line-arguments.c +++ b/command-line-arguments.c @@ -28,6 +28,24 @@ _process_keyword_arg (const notmuch_opt_desc_t *arg_desc, const char *arg_str) { return FALSE; } +static notmuch_bool_t +_process_boolean_arg (const notmuch_opt_desc_t *arg_desc, char next, const char *arg_str) { + + if (next == 0) { + *((notmuch_bool_t *)arg_desc->output_var) = TRUE; + return TRUE; + } + if (strcmp (arg_str, "false") == 0) { + *((notmuch_bool_t *)arg_desc->output_var) = FALSE; + return TRUE; + } + if (strcmp (arg_str, "true") == 0) { + *((notmuch_bool_t *)arg_desc->output_var) = TRUE; + return TRUE; + } + return FALSE; +} + /* Search for the {pos_arg_index}th position argument, return FALSE if that does not exist. @@ -76,14 +94,15 @@ parse_option (const char *arg, char *endptr; /* Everything but boolean arguments (switches) needs a - * delimiter, and a non-zero length value + * delimiter, and a non-zero length value. Boolean + * arguments may take an optional =true or =false value. */ - - if (try->opt_type != NOTMUCH_OPT_BOOLEAN) { - if (next != '=' && next != ':') return FALSE; - if (value[0] == 0) return FALSE; + if (next != '=' && next != ':' && next != 0) return FALSE; + if (next == 0) { + if (try->opt_type != NOTMUCH_OPT_BOOLEAN) + return FALSE; } else { - if (next != 0) return FALSE; + if (value[0] == 0) return FALSE; } if (try->output_var == NULL) @@ -94,8 +113,7 @@ parse_option (const char *arg, return _process_keyword_arg (try, value); break; case NOTMUCH_OPT_BOOLEAN: - *((notmuch_bool_t *)try->output_var) = TRUE; - return TRUE; + return _process_boolean_arg (try, next, value); break; case NOTMUCH_OPT_INT: *((int *)try->output_var) = strtol (value, &endptr, 10); -- 2.26.2