diff options
Diffstat (limited to 'source/config.c')
| -rw-r--r-- | source/config.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/source/config.c b/source/config.c new file mode 100644 index 0000000..7fa97d0 --- /dev/null +++ b/source/config.c @@ -0,0 +1,107 @@ + +#include "kpl.h" + +static kpl_config default_config = { + .argc = -1, .main_module_arg_index = -1, + .argv = NULL, .module_extension = ".kpl", + .io = { .queue_pow = 12 }, + .thread = { .thread_count = -1 }, + .memory = {} +}; + +void kpl_config_init(kpl_config *config) { + memcpy(config, &default_config, sizeof(kpl_config)); +} + +typedef int32_t kpl_arg_match_fn(const char *match_str, const int32_t match_str_index, kpl_config *config); + +typedef struct { + const char *match_str, *help_message; + kpl_arg_match_fn *arg_match_fn; +} kpl_arg_match; + +static int32_t kpl_arg_match_help(const char *match_str, const int32_t match_str_index, kpl_config *config); + +static int32_t kpl_arg_match_module_extension(const char *match_str, const int32_t match_str_index, kpl_config *config) { + config->module_extension = match_str + match_str_index; + return KPL_EXIT_CODE_SUCCESS; +} + +static kpl_arg_match arg_match_array[] = { + { + .match_str = "--module-extension=", + .help_message="[WORD], Change the module extension for imported files (default .kpl)", + .arg_match_fn = kpl_arg_match_module_extension + }, + { .match_str = "--help", .help_message = ", Show help", .arg_match_fn = kpl_arg_match_help }, + { .match_str = NULL, .help_message = NULL, .arg_match_fn = NULL } +}; + +static int32_t kpl_arg_match_help(const char *match_str, const int32_t match_str_index, kpl_config *config) { + (void) match_str; + (void) match_str_index; + (void) config; + printf("\nUsage " KPL_COLOR(BOLD) "%s" KPL_COLOR(RESET) KPL_COLOR(WHITE) " [OPTIONS] [FILE]" KPL_COLOR(RESET) + KPL_COLOR(BOLD) "%s\n\n" KPL_COLOR(RESET), config->argv[0], config->module_extension); + printf("Where " KPL_COLOR(WHITE) "[OPTIONS]" KPL_COLOR(RESET) " are:\n"); + const kpl_arg_match *match_array = arg_match_array; + while (match_array->match_str) { + printf(KPL_COLOR(LIGHT_YELLOW) "\t%s" KPL_COLOR(RESET) "%s\n", + match_array->match_str, match_array->help_message); + match_array++; + } + putchar('\n'); + return KPL_EXIT_CODE_HELP; +} + +static bool kpl_valid_match_str_index(const char *match_str_array, const char *match_str_arg, int32_t match_str_index) { + return match_str_array[match_str_index] && + match_str_array[match_str_index] == match_str_arg[match_str_index]; +} + +static bool kpl_valid_match_str(const char *match_str_array, const char *match_str_arg, int32_t match_str_index) { + return !match_str_array[match_str_index] && (!match_str_arg[match_str_index] || + (match_str_arg[match_str_index] && match_str_array[match_str_index - 1] == '=')); +} + +bool kpl_config_valid_module_exension(kpl_config *config, const char *module_name) { + size_t name_length = strlen(module_name), module_extension_length = strlen(config->module_extension); + return name_length > module_extension_length && + strcmp(module_name + name_length - module_extension_length, config->module_extension) == 0; +} + +int32_t kpl_config_parse_args(kpl_config *config, const int32_t argc, const char *argv[]) { + config->argc = argc; + config->argv = argv; + int32_t arg_index = 1; + while (arg_index < argc) { + int32_t match_str_index = 0; + const char *match_str_arg = argv[arg_index]; + const kpl_arg_match *match_array = arg_match_array; + while (match_array->match_str) { + while (kpl_valid_match_str_index(match_array->match_str, match_str_arg, match_str_index)) + match_str_index++; + if (kpl_valid_match_str(match_array->match_str, match_str_arg, match_str_index)) { + int32_t exit_status = match_array->arg_match_fn(match_str_arg, match_str_index, config); + if (exit_status != KPL_EXIT_CODE_SUCCESS) + return exit_status; + break; + } + match_str_index = 0; + match_array++; + } + if (!match_array->match_str) + break; + arg_index++; + } + if (arg_index == argc) + return KPL_EXIT_CODE_SUCCESS; + if (!kpl_config_valid_module_exension(config, argv[arg_index])) { + printf(KPL_COLOR(LIGHT_RED) "\nInvalid " KPL_COLOR(RESET) + KPL_COLOR(WHITE) "[OPTION]/[FILE]: " KPL_COLOR(RESET) + KPL_COLOR2(BOLD, LIGHT_RED) "%s\n" KPL_COLOR(RESET), argv[arg_index]); + return kpl_arg_match_help(NULL, 0, config); + } + config->main_module_arg_index = arg_index; + return KPL_EXIT_CODE_SUCCESS; +} |