Add initial argp support

src/argbColors.c

@@ -7,20 +7,136 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <argp.h>
+#include <regex.h>
+
 #include "libusb-1.0/libusb.h"
 
+
 #include "configuration.h"
 #include "device_setup.c"
 #include "init_terminate.c"
 #include "commands.c"
+#include "iousb.c"
+const char *argp_program_version = "argbColor 0.1";
+const char *argp_program_bug_address = "https://github.com/developersu/argbColors/issues/";
+static char doc[] = "TODO \
+TODO \
+there should be a well structed description one day";
+
+static char args_doc[] = "ARG1";
+static struct argp_option options[] = {
+  {"sync",       's', "COMMAND",   0, "Bypass synchronized command" },
+  {"separate",   'e', "COMMAND",   0, "Bypass separate command(s)" },
+  {"color",      'c', "RGB_COLOR", 0, "Define color" },
+  {"brightness", 'b', "VALUE",     0, "Define brightness" },
+  {"quiet",    'q', 0,             0, "Don't produce any output" },
+  { 0 }
+};
+
+struct arguments{
+  char *args[1];
+  int quiet;
+  char *sync;
+  char *separate;
+  char *color;
+  char *brightness;
+};
+
+static error_t parse_opt(int key, char *arg, struct argp_state *state){
+    /* Get the input argument from argp_parse, which we
+       know is a pointer to our arguments structure. */
+    struct arguments *arguments = state->input;
+
+    switch (key){ 
+    case 'q':
+        arguments->quiet = 1;
+        break;
+    case 's':
+        arguments->sync = arg;
+        break;
+    case 'e':
+        arguments->separate = arg;
+        break;
+    case 'c':
+        arguments->color = arg;
+        break;
+    case 'b':
+        arguments->brightness = arg;
+        break;
+
+    case ARGP_KEY_ARG:
+        if (state->arg_num >= 1) /* Too many arguments. */
+        argp_usage(state);
+
+        arguments->args[state->arg_num] = arg;
+
+        break;
+
+    case ARGP_KEY_END:
+        if (state->arg_num < 1) /* Not enough arguments. */
+        argp_usage(state);
+        break;
+
+    default:
+        return ARGP_ERR_UNKNOWN;
+    }  
+    return 0;
+}
+
+static struct argp argp = { options, parse_opt, args_doc, doc };
+
+int parse_color(char *color, unsigned int *red, unsigned int *green, unsigned int *blue ){
+    printf("%s\n", color);
+    if (strlen(color) != 6)
+        return -1;
+
+    regex_t reg;
+    regcomp(&reg, "^[0-9a-fA-F]{6}$", REG_EXTENDED);
+    if (regexec(&reg, color, 0, NULL, 0) != 0)
+        return -1;
+    regfree(&reg);
+    
+    if (sscanf(color, "%2x%2x%2x", red, green, blue) == 3)
+        return 0;
+        
+    return -1;
+}
+
+int parse_brightness(){
+    // TODO
+}
 
 int main(int argc, char *argv[]) {
-    
-//    if (argc < 2){
-//        printf("Missing arguments ('argbColors --help' for help)\n");
-//        return -1;
-//    }
-    
+
+    struct arguments arguments;
+    /* Default values. */
+    arguments.quiet = 0;
+    arguments.sync = "-";
+    arguments.separate = "-";
+    arguments.color = "ff2fff";
+    arguments.brightness = "5";
+
+    /* Parse our arguments; every option seen by parse_opt will
+        be reflected in arguments. */
+    argp_parse(&argp, argc, argv, 0, 0, &arguments);
+
+    printf("ARG1 = %s\nSYNC = %s\nSEPARATE = %s\nCOLOR = %s\n"
+           "QUIET = %s\n",
+           arguments.args[0], arguments.args[1],
+           arguments.sync,
+           arguments.separate,
+           arguments.color,
+           arguments.quiet ? "yes" : "no");    
+
+    unsigned int red, green, blue;
+
+    if (parse_color(arguments.color, &red, &green, &blue) != 0){
+        printf("Color parse failure\n");
+        return -1;
+    }
+    // - - -
     int ret = configure_device();
     if (ret != 0){
         printf("%s - %d\n", libusb_error_name(ret), ret);
@@ -45,8 +161,7 @@ int main(int argc, char *argv[]) {
         return -1;
     }
 //*/
-    // 0xff, 0x2f, 0xff <3
-    if(staticColorSeparate(0xff, 0xff, 0x2b, 0x00)){
+    if(staticColorSync(red, green, blue)){
         printf("Command transfer failure\n");
         libusb_close(dev_handle);
         return -1;

src/commands.c

@@ -1,5 +1,3 @@
-#include "iousb.c"
-
 unsigned char end_transaction[64] = { 0xcc, 0x28, 0xff, 0x07, }; //cc28ff07
 unsigned char end_alt_transaction[64] = { 0xcc, 0x28, 0x04, };   //cc2804