[Patch v8 1/6] cli: command line parsing: allow default for keyword options

diff --git a/de/f5f0756f95181495cf5d384fdfeb2a333ad620 b/de/f5f0756f95181495cf5d384fdfeb2a333ad620
new file mode 100644 (file)
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+++ b/de/f5f0756f95181495cf5d384fdfeb2a333ad620
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+       Sat, 16 Jun 2012 03:22:02 -0700 (PDT)\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [Patch v8 1/6] cli: command line parsing: allow default for keyword\r
+       options\r
+Date: Sat, 16 Jun 2012 11:21:42 +0100\r
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+\r
+This changes the parsing for "keyword" options so that if the option\r
+is specified with no argument the argument is parsed as if it were\r
+passed an empty string. This make it easier to add options to existing\r
+boolean arguments (the existing --option can default to TRUE).\r
+---\r
+ command-line-arguments.c |   17 +++++++++++++----\r
+ 1 files changed, 13 insertions(+), 4 deletions(-)\r
+\r
+diff --git a/command-line-arguments.c b/command-line-arguments.c\r
+index 76b185f..b0a0dab 100644\r
+--- a/command-line-arguments.c\r
++++ b/command-line-arguments.c\r
+@@ -11,10 +11,15 @@\r
+ */\r
+ \r
+ static notmuch_bool_t\r
+-_process_keyword_arg (const notmuch_opt_desc_t *arg_desc, const char *arg_str) {\r
++_process_keyword_arg (const notmuch_opt_desc_t *arg_desc, char next, const char *arg_str) {\r
+ \r
+     const notmuch_keyword_t *keywords = arg_desc->keywords;\r
+ \r
++    if (next == 0) {\r
++      /* No keyword given */\r
++      arg_str = "";\r
++    }\r
++\r
+     while (keywords->name) {\r
+       if (strcmp (arg_str, keywords->name) == 0) {\r
+           if (arg_desc->output_var) {\r
+@@ -24,7 +29,10 @@ _process_keyword_arg (const notmuch_opt_desc_t *arg_desc, const char *arg_str) {\r
+       }\r
+       keywords++;\r
+     }\r
+-    fprintf (stderr, "unknown keyword: %s\n", arg_str);\r
++    if (next != 0)\r
++      fprintf (stderr, "unknown keyword: %s\n", arg_str);\r
++    else\r
++      fprintf (stderr, "option %s needs a keyword\n", arg_desc->name);\r
+     return FALSE;\r
+ }\r
+ \r
+@@ -99,7 +107,8 @@ parse_option (const char *arg,\r
+            */\r
+           if (next != '=' && next != ':' && next != 0) return FALSE;\r
+           if (next == 0) {\r
+-              if (try->opt_type != NOTMUCH_OPT_BOOLEAN)\r
++              if (try->opt_type != NOTMUCH_OPT_BOOLEAN &&\r
++                  try->opt_type != NOTMUCH_OPT_KEYWORD)\r
+                   return FALSE;\r
+           } else {\r
+               if (value[0] == 0) return FALSE;\r
+@@ -110,7 +119,7 @@ parse_option (const char *arg,\r
+ \r
+           switch (try->opt_type) {\r
+           case NOTMUCH_OPT_KEYWORD:\r
+-              return _process_keyword_arg (try, value);\r
++              return _process_keyword_arg (try, next, value);\r
+               break;\r
+           case NOTMUCH_OPT_BOOLEAN:\r
+               return _process_boolean_arg (try, next, value);\r
+-- \r
+1.7.9.1\r
+\r