Roughly outline the jimp idea

Author: rexim

.gitignore

@@ -1,2 +1,3 @@
 example
-test
+test
+jimp

Makefile

@@ -1,11 +1,14 @@
-CFLAGS=-Wall -Wextra -Wswitch-enum -std=c99 -pedantic -ggdb
+CFLAGS=-Wall -Wextra -Wswitch-enum -ggdb
 
 .PHONY: all
-all: examples test
+all: examples test jimp
 
 test: test.c jim.h
 	$(CC) $(CFLAGS) -o test test.c 
 
+jimp: jimp.c nob.h
+	$(CC) $(CFLAGS) -o jimp jimp.c
+
 .PHONY: examples
 examples: 
 	$(MAKE) -C examples/

database.json

@@ -0,0 +1,66 @@
+{
+    "number": [69, 420, 1337, 80085],
+    "profile": [
+        {
+            "location": "Wonderland",
+            "location": "Wonderland",
+            "body_count": 150,
+            "name": "Alice Smith",
+            "age": 34
+        },
+        {
+            "name": "Bob Johnson",
+            "age": 45,
+            "location": "Atlantis",
+            "body_count": 300
+        },
+        {
+            "name": "Charlie Brown",
+            "age": 28,
+            "location": "Chocolate Factory",
+            "body_count": 200
+        },
+        {
+            "name": "Diana Prince",
+            "age": 32,
+            "location": "Themyscira",
+            "body_count": 250
+        },
+        {
+            "name": "Ethan Hunt",
+            "age": 40,
+            "location": "Mission HQ",
+            "body_count": 350
+        },
+        {
+            "name": "Fiona Apple",
+            "age": 37,
+            "location": "Music City",
+            "body_count": 180
+        },
+        {
+            "name": "George Lucas",
+            "age": 75,
+            "location": "Galaxy Far Far Away",
+            "body_count": 500
+        },
+        {
+            "name": "Hannah Montana",
+            "age": 25,
+            "location": "Nashville",
+            "body_count": 100
+        },
+        {
+            "name": "Ian Malcolm",
+            "age": 60,
+            "location": "Jurassic Park",
+            "body_count": 400
+        },
+        {
+            "name": "Jessica Rabbit",
+            "age": 30,
+            "location": "Toontown",
+            "body_count": 220
+        }
+    ]
+}

empty.json

@@ -0,0 +1 @@
+[]

jimp.c

@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <stdbool.h>
+#define NOB_IMPLEMENTATION
+#define NOB_STRIP_PREFIX
+#include "nob.h"
+#define JIMP_IMPLEMENTATION
+#include "jimp.h"
+
+typedef struct {
+    const char *name;
+    long age;
+    const char *location;
+    long body_count;
+} Person;
+
+typedef struct {
+    Person *items;
+    size_t count;
+    size_t capacity;
+} People;
+
+bool parse_person(Jimp *jimp, Person *p)
+{
+    if (!jimp_object_begin(jimp)) return false;
+    while (jimp_object_member(jimp)) {
+        if (strcmp(jimp->key, "name") == 0) {
+            if (!jimp_string(jimp, &p->name))       return false;
+        } else if (strcmp(jimp->key, "age") == 0) {
+            if (!jimp_number(jimp, &p->age))        return false;
+        } else if (strcmp(jimp->key, "location") == 0) {
+            if (!jimp_string(jimp, &p->location))   return false;
+        } else if (strcmp(jimp->key, "body_count") == 0) {
+            if (!jimp_number(jimp, &p->body_count)) return false;
+        } else {
+            jimp_unknown_member(jimp);
+            return false;
+        }
+    }
+    return jimp_object_end(jimp);
+}
+
+bool parse_people(Jimp *jimp, People *ps)
+{
+    if (!jimp_array_begin(jimp)) return false;
+    while (jimp_array_has_items(jimp)) {
+        Person p = {0};
+        if (!parse_person(jimp, &p)) return false;
+        da_append(ps, p);
+    }
+    if (!jimp_array_end(jimp)) return false;
+
+    return true;
+}
+
+void print_person(const Person *p)
+{
+    printf("name       = %s\n",  p->name);
+    printf("age        = %ld\n", p->age);
+    printf("location   = %s\n",  p->location);
+    printf("body_count = %ld\n", p->body_count);
+}
+
+typedef struct {
+    long *items;
+    size_t count;
+    size_t capacity;
+} Numbers;
+
+int main()
+{
+    const char *path = "profile.json";
+    // const char *path = "numbers.json";
+    // const char *path = "profiles.json";
+    // const char *path = "empty.json";
+    // const char *path = "one.json";
+    // const char *path = "database.json";
+    String_Builder sb = {0};
+    if (!read_entire_file(path, &sb)) return 1;
+    Jimp jimp = {
+        .path = path,
+    };
+    static char string_store[1024];
+    stb_c_lexer_init(&jimp.l, sb.items, sb.items + sb.count, string_store, sizeof(string_store));
+
+    Person p = {0};
+    if (!parse_person(&jimp, &p)) return 1;
+    print_person(&p);
+
+    /*
+    People ps = {0};
+    Numbers xs = {0};
+    if (!jimp_object_begin(&jimp)) return 1;
+    while (jimp_object_member(&jimp)) {
+        if (strcmp(jimp.key, "profile") == 0) {
+            if (!parse_people(&jimp, &ps)) return 1;
+        } else if (strcmp(jimp.key, "number") == 0) {
+            if (!jimp_array_begin(&jimp)) return 1;
+            while (jimp_array_has_items(&jimp)) {
+                long x = 0;
+                jimp_number(&jimp, &x);
+                da_append(&xs, x);
+            }
+            if (!jimp_array_end(&jimp)) return 1;
+        } else {
+            jimp_unknown_member(&jimp);
+            return 1;
+        }
+    }
+    if (!jimp_object_end(&jimp)) return 1;
+
+    da_foreach(Person, p, &ps) {
+        print_person(p);
+        printf("\n");
+    }
+    printf("------------------------------\n");
+    da_foreach(long, x, &xs) {
+        printf("%ld ", *x);
+    }
+    printf("\n");
+    */
+
+    return 0;
+}