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authorMattias Andrée <maandree@operamail.com>2013-08-24 21:46:37 +0200
committerMattias Andrée <maandree@operamail.com>2013-08-24 21:46:37 +0200
commit5d449a376f471d3df0aa019fd0d6dbc158c7a2da (patch)
tree019b3b62b798f2510646a2a0190143541c4ec4b3 /src
parentissue 2, bash version (diff)
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issue 2, c version
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src')
-rw-r--r--src/argparser.c111
-rw-r--r--src/argparser.h16
2 files changed, 116 insertions, 11 deletions
diff --git a/src/argparser.c b/src/argparser.c
index 1ec75f9..28670e3 100644
--- a/src/argparser.c
+++ b/src/argparser.c
@@ -25,9 +25,10 @@
#define null 0
/* Constants */
-#define ARGUMENTLESS 0
-#define ARGUMENTED 1
-#define VARIADIC 2
+#define ARGUMENTLESS 0
+#define ARGUMENTED 1
+#define OPTARGUMENTED 2
+#define VARIADIC 3
/* Prototype for static functions */
static void _sort(char** list, long count, char** temp);
@@ -42,6 +43,7 @@ static void _map_free(void** level, long level_size);
static void** map_free(args_Map* map);
static void noop_2(char* used, char* std);
static void noop_3(char* used, char* std, char* value);
+static long default_stickless(char* argument);
/**
@@ -225,7 +227,7 @@ void args_dispose()
/**
* Creates, but does not add, a option that takes no arguments
*
- * @param trigger Function to invoked when the option is used, with the used option and the standard option
+ * @param trigger Function to invoke when the option is used, with the used option and the standard option
* @param standard The index of the standard alternative name
* @param alternatives... The alternative names, end with `null`
* @return The created option
@@ -264,7 +266,7 @@ args_Option args_new_argumentless(void (*trigger)(char*, char*), int standard, c
/**
* Creates, but does not add, a option that takes one argument per use
*
- * @param trigger Function to invoked when the option is used, with the used option, the standard option and the used value
+ * @param trigger Function to invoke when the option is used, with the used option, the standard option and the used value
* @param argument The new of the argument
* @param standard The index of the standard alternative name
* @param alternatives... The alternative names, end with `null`
@@ -302,9 +304,51 @@ args_Option args_new_argumented(void (*trigger)(char*, char*, char*), char* argu
}
/**
+ * Creates, but does not add, a option that optionally takes one argument per use
+ *
+ * @param stickless Should return true if the (feed) next argument can used for the argument without being sticky
+ * @param trigger Function to invoke when the option is used, with the used option, the standard option and the used value
+ * @param argument The new of the argument
+ * @param standard The index of the standard alternative name
+ * @param alternatives... The alternative names, end with `null`
+ * @return The created option
+ */
+args_Option args_new_optargumented(long (*stickless)(char*), void (*trigger)(char*, char*, char*), char* argument, int standard, char* alternatives, ...)
+{
+ long count = 1;
+ args_Option rc;
+ va_list args, cp;
+ long i;
+
+ va_copy(cp, args); /* va_copy(dest, src) */
+ va_start(cp, alternatives);
+ while (va_arg(cp, char*) != null)
+ count++;
+ va_end(cp);
+
+ rc.type = OPTARGUMENTED;
+ rc.help = null;
+ rc.argument = argument == null ? "ARG" : argument;
+ rc.alternatives_count = count;
+ rc.triggerv = trigger == null ? noop_3 : trigger;
+ rc.stickless = stickless == null ? default_stickless : stickless;
+
+ rc.alternatives = (char**)malloc(count * sizeof(char*));
+ va_start(args, alternatives);
+ *(rc.alternatives) = alternatives;
+ for (i = 1; i < count; i++)
+ *(rc.alternatives + i) = va_arg(args, char*);
+ va_end(args);
+ if (standard < 0)
+ standard += rc.alternatives_count;
+ rc.standard = *(rc.alternatives + standard);
+ return rc;
+}
+
+/**
* Creates, but does not add, a option that takes all following arguments
*
- * @param trigger Function to invoked when the option is used, with the used option and the standard option
+ * @param trigger Function to invoke when the option is used, with the used option and the standard option
* @param argument The new of the argument
* @param standard The index of the standard alternative name
* @param alternatives... The alternative names, end with `null`
@@ -705,6 +749,17 @@ void args_optmap_trigger(char* name, char* value)
opt->triggerv(name, opt->standard, value);
}
+/**
+ * Evaluate if an argument can be used without being sticky for an optionally argument option
+ *
+ * @param name The option's alternative name
+ * @param argument The argument
+ */
+long args_optmap_stickless(char* name, char* argument)
+{
+ return (args_options + args_optmap_get_index(name))->stickless(argument);
+}
+
/**
* Adds an option
@@ -1136,6 +1191,16 @@ void args_help(long use_colours)
*line++ = *((use_colours ? "\033[24m...]" : "...]") + j);
l += 6;
}
+ else if (type == OPTARGUMENTED)
+ {
+ for (j = 0; *((use_colours ? " [\033[04m" : " [") + j); j++)
+ *line++ = *((use_colours ? " [\033[04m" : " [") + j);
+ for (j = 0; *(arg + j); j++)
+ *line++ = *(arg + j);
+ for (j = 0; *((use_colours ? "\033[24m]" : "]") + j); j++)
+ *line++ = *((use_colours ? "\033[24m]" : "]") + j);
+ l += 3;
+ }
else if (type == ARGUMENTED)
{
if (use_colours)
@@ -1265,10 +1330,23 @@ long args_parse(int argc, char** argv)
char* arg = *argv++;
if ((get > 0) && (dontget == 0))
{
- args_optmap_trigger(*(optqueue + optptr - get--), arg);
- *(argqueue + argptr++) = arg;
+ char* arg_opt = *(optqueue + optptr - get--);
+ long passed = true;
+ if (args_optmap_get_type(arg_opt) == OPTARGUMENTED)
+ if (args_optmap_stickless(arg_opt, arg))
+ {
+ passed = false;
+ args_optmap_trigger(arg_opt, null);
+ *(argqueue + argptr++) = null;
+ }
+ if (passed)
+ {
+ args_optmap_trigger(arg_opt, arg);
+ *(argqueue + argptr++) = arg;
+ continue;
+ }
}
- else if (tmpdashed)
+ if (tmpdashed)
{
*(args_files + args_files_count++) = arg;
tmpdashed = 0;
@@ -1329,7 +1407,7 @@ long args_parse(int argc, char** argv)
free(arg_opt);
}
}
- else if (type == ARGUMENTED)
+ else if (type <= OPTARGUMENTED)
{
*(optqueue + optptr++) = arg;
get++;
@@ -1369,7 +1447,7 @@ long args_parse(int argc, char** argv)
*(argqueue + argptr++) = null;
args_optmap_trigger(narg, null);
}
- else if (type == ARGUMENTED)
+ else if (type < VARIADIC)
{
if (*(arg + i))
{
@@ -1752,3 +1830,14 @@ static void noop_3(char* used, char* std, char* value)
(void) value;
}
+/**
+ * Default stickless evaluator
+ *
+ * @param The argument
+ * @return Whether the argument can be used without being sticky
+ */
+static long default_stickless(char* argument)
+{
+ return (*argument != '-') && (*argument != '+');
+}
+
diff --git a/src/argparser.h b/src/argparser.h
index 668e340..0027c28 100644
--- a/src/argparser.h
+++ b/src/argparser.h
@@ -74,6 +74,14 @@ typedef struct
*/
void (*triggerv)(char*, char*, char*);
+ /**
+ * Should return true if the next argument can used for the argument without being sticky
+ *
+ * @param argument The next argument
+ * @return Whether the argument can be used without being sticky
+ */
+ long (*stickless)(char*);
+
} args_Option;
@@ -310,6 +318,14 @@ extern char* args_options_get_standard(long index);
void args_optmap_trigger(char* name, char* value);
/**
+ * Evaluate if an argument can be used without being sticky for an optionally argument option
+ *
+ * @param name The option's alternative name
+ * @param argument The argument
+ */
+long args_optmap_stickless(char* name, char* argument);
+
+/**
* Gets the help text for a option with a specific index
*
* @param index The option's index