grindin'

parse-file.c

@@ -0,0 +1,83 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include "xjson.h"
+
+char *load_file(const char *path, int *len)
+{
+    FILE *fp = fopen(path, "rb");
+
+    if(fp == NULL)
+        return NULL;
+
+    fseek(fp, 0, SEEK_END);
+    int len_ = ftell(fp);
+    fseek(fp, 0, SEEK_SET);
+
+    char *data = malloc(len_ + 1);
+
+    if(data == NULL)
+    {
+        fclose(fp);
+        return NULL;
+    }
+
+    if(fread(data, 1, len_, fp) != len_)
+    {
+        free(data);
+        fclose(fp);
+        return NULL;
+    }
+
+    data[len_] = '\0';
+    fclose(fp);
+
+    if(len)
+        *len = len_;
+    return data;
+}
+
+int main(int argc, char **argv)
+{
+    if(argc < 2)
+    {
+        fprintf(stderr, "Error: Missing file\n");
+        fprintf(stderr, "Usage: %s <file>\n", argv[0]);
+        return 1;
+    }
+
+    int   size;
+    char *data = load_file(argv[1], &size);
+
+    if(data == NULL)
+    {
+        fprintf(stderr, "Error: Failed to load file\n");
+        return 1;
+    }
+
+    char pool[65536];
+    xj_error  error;
+
+    xj_alloc *alloc = xj_alloc_using(pool, sizeof(pool), 4096, NULL);
+    assert(alloc != NULL);
+
+    xj_value *val = xj_decode(data, size, alloc, &error);
+
+    if(val == NULL)
+    {
+        if(error.off < 0)
+            fprintf(stderr, "Error: %s\n", error.message);
+        else
+            fprintf(stderr, "Error %s:%d:%d: %s\n", argv[1], error.row+1, error.col+1, error.message);
+        xj_alloc_del(alloc);
+        free(data);
+        return 1;
+    }
+
+    fprintf(stderr, "OK\n");
+
+    xj_alloc_del(alloc);
+    free(data);
+    return 0;
+}