added loader, error handling and cli. tests needed

1 files changed, 95 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index 4e72b6e..90e374c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,16 +10,108 @@
 #include <config.h>
 #endif /* HAVE_CONFIG_H */
 
+#include <stdbool.h>
 #include <stdio.h>
+#include <string.h>
 
+#include "utils/utils.h"
 #include "source-parser.h"
 #include "template-parser.h"
-#include <string.h>
+#include "loader.h"
+#include "error.h"
+
+
+static void
+blogc_print_help(void)
+{
+    printf(
+        "usage:\n"
+        "    blogc [-h] -t TEMPLATE [-o OUTPUT] SOURCE [SOURCE ...] - A blog compiler.\n"
+        "\n"
+        "positional arguments:\n"
+        "    SOURCE       source file(s)\n"
+        "\n"
+        "optional arguments:\n"
+        "    -h, --help   show this help message and exit\n"
+        "    -t TEMPLATE  template file\n"
+        "    -o OUTPUT    output file\n");
+}
+
+
+static void
+blogc_print_usage(void)
+{
+    printf("usage: blogc [-h] -t TEMPLATE [-o OUTPUT] SOURCE [SOURCE ...]\n");
+}
 
 
 int
 main(int argc, char **argv)
 {
-    printf("Hello, World!\n");
-    return 0;
+    int rv = 0;
+
+    char *template = NULL;
+    char *output = NULL;
+    b_slist_t *sources = NULL;
+
+    for (int i = 1; i < argc; i++) {
+        if (argv[i][0] == '-') {
+            switch (argv[i][1]) {
+                case 'h':
+                    blogc_print_help();
+                    goto cleanup;
+                case 't':
+                    if (i + 1 < argc)
+                        template = b_strdup(argv[++i]);
+                    break;
+                case 'o':
+                    if (i + 1 < argc)
+                        output = b_strdup(argv[++i]);
+                    break;
+            }
+        }
+        else
+            sources = b_slist_append(sources, b_strdup(argv[i]));
+    }
+
+    if (template == NULL) {
+        blogc_print_usage();
+        fprintf(stderr, "blogc: error: argument -t is required\n");
+        rv = 2;
+        goto cleanup;
+    }
+
+    if (b_slist_length(sources) == 0) {
+        blogc_print_usage();
+        fprintf(stderr, "blogc: error: at least one source file is required\n");
+        rv = 2;
+        goto cleanup;
+    }
+
+    blogc_error_t *err = NULL;
+
+    b_slist_t* l = blogc_template_parse_from_file(template, &err);
+    if (err != NULL) {
+        blogc_error_print(err);
+        goto cleanup2;
+    }
+
+    b_slist_t *s = blogc_source_parse_from_files(sources, &err);
+    if (err != NULL) {
+        blogc_error_print(err);
+        goto cleanup3;
+    }
+
+    printf("%d\n", s == NULL);
+
+cleanup3:
+    b_slist_free_full(s, blogc_source_free);
+cleanup2:
+    blogc_template_free_stmts(l);
+    blogc_error_free(err);
+cleanup:
+    free(template);
+    free(output);
+    b_slist_free_full(sources, free);
+    return rv;
 }