73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
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#include "args.h"
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#include <stdlib.h>
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#include <string.h>
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void kwil_parse_args(struct kwil_args_t* self, int argc, char** argv) {
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self->argc = argc;
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self->argv = argv;
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self->parsed = 0;
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// allocate filename array with capacity of 1
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self->filenames = malloc(sizeof(char**));
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self->filenames_cap = 1;
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self->filenames_len = 0;
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for(self->parsed = 0; self->parsed < argc; ++self->parsed) {
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kwil_args_parse_arg(self, self->parsed);
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}
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}
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void kwil_free_args(struct kwil_args_t* self) {
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for(int i = 0; i < self->filenames_len; ++i) {
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free(self->filenames[i]);
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}
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free(self->filenames);
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self->filenames_cap = 0;
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self->filenames_len = 0;
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}
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int kwil_args_add_filename(struct kwil_args_t* self, const char* filename) {
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// resize the array if needed
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if(self->filenames_len >= self->filenames_cap) {
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size_t new_cap = self->filenames_cap * 2;
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char** new_array = realloc(self->filenames, new_cap * sizeof(char**));
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if(new_array == NULL) {
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return 1;
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}
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self->filenames_cap = new_cap;
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self->filenames = new_array;
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}
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// allocate enough memory for the string and null terminator
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size_t len = strlen(filename);
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self->filenames[self->filenames_len] = malloc(len + 1);
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// copy string (includes null terminator)
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strcpy(self->filenames[self->filenames_len], filename);
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++self->filenames_len;
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return 0;
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}
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void kwil_args_parse_arg(struct kwil_args_t* self, int at) {
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if(at == 0) {
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// is program argument, ignore
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} else if(self->argv[at][0] == '-') {
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// is a flag, parse flag
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// no flags to parse
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} else {
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// asume a filename
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kwil_args_parse_filename(self, at);
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}
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}
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void kwil_args_parse_filename(struct kwil_args_t* self, int filename) {
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const char* filename_str = self->argv[filename];
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int len = strlen(filename_str);
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if(strcmp(filename_str + len - 7, ".kwil.h") != 0) {
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kwil_args_add_filename(self, filename_str);
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}
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}
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