Move opts/ into util/opts/

util/opts/opts.h

@@ -0,0 +1,76 @@
+#pragma once
+
+#include <stdbool.h>
+
+typedef struct option_value_s {
+  const char *name;
+  unsigned value;
+} option_value_t;
+
+typedef struct options_s {
+  const char *name;
+  char *value_string;
+  char *value_list;
+  union {
+    unsigned *value;
+    unsigned *value_uint;
+    unsigned *value_hex;
+    bool *value_bool;
+    float *value_float;
+  };
+  const char *format;
+  const char *help;
+  option_value_t *value_mapping;
+  unsigned size;
+  const char *default_value;
+  const char *description;
+} option_t;
+
+#define OPTION_VALUE_LIST_SEP ";"
+
+#define OPTION_FORMAT_uint   "%u"
+#define OPTION_FORMAT_hex    "%08x"
+#define OPTION_FORMAT_bool   "%d"
+#define OPTION_FORMAT_float  "%f"
+#define OPTION_FORMAT_string "%s"
+#define OPTION_FORMAT_list   "%s"
+
+#define DEFINE_OPTION(_section, _name, _type, _desc) \
+  { \
+    .name = #_section "-" #_name, \
+    .value_##_type = &_section##_options._name, \
+    .format = OPTION_FORMAT_##_type, \
+    .size = sizeof(_section##_options._name), \
+    .description = _desc, \
+  }
+
+#define DEFINE_OPTION_DEFAULT(_section, _name, _type, _default_value, _desc) \
+  { \
+    .name = #_section "-" #_name, \
+    .value_##_type = &_section##_options._name, \
+    .format = OPTION_FORMAT_##_type, \
+    .size = sizeof(_section##_options._name), \
+    .default_value = _default_value, \
+    .description = _desc, \
+  }
+
+#define DEFINE_OPTION_VALUES(_section, _name, _value_mapping, _desc) \
+  { \
+    .name = #_section "-" #_name, \
+    .value_hex = &_section##_options._name, \
+    .format = OPTION_FORMAT_hex, \
+    .value_mapping = _value_mapping, \
+    .size = sizeof(_section##_options._name), \
+    .description = _desc, \
+  }
+
+#define DEFINE_OPTION_PTR(_section, _name, _type, _desc) \
+  { \
+    .name = #_section "-" #_name, \
+    .value_##_type = _section##_options._name, \
+    .format = OPTION_FORMAT_##_type, \
+    .size = sizeof(_section##_options._name), \
+    .description = _desc, \
+  }
+
+int parse_opts(option_t *options, int argc, char *argv[]);