Merge branch 'jimp'

Author: rexim

.gitignore

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

Makefile

@@ -1,4 +1,4 @@
-CFLAGS=-Wall -Wextra -Wswitch-enum -std=c99 -pedantic -ggdb
+CFLAGS=-Wall -Wextra -Wswitch-enum -ggdb
 
 .PHONY: all
 all: examples test

README.md

@@ -114,3 +114,5 @@ $ ./test record
 
 1. Does not depends on libc. Could be theoretically used in embedded, but I know nothing about embedded, so maybe not.
 2. `jim_float()` is quite likely very stupid and imprecise
+
+<!-- TODO: document jimp.h here -->

examples/.gitignore

@@ -1,2 +1,3 @@
 01_from_readme
 02_binary_tree
+03_parsing_database

examples/03_parsing_database.c

@@ -0,0 +1,118 @@
+#include <stdio.h>
+#include <stdbool.h>
+#define NOB_IMPLEMENTATION
+#define NOB_STRIP_PREFIX
+#include "../thirdparty/nob.h"
+#define JIMP_IMPLEMENTATION
+#include "../jimp.h"
+
+typedef struct {
+    const char *name;
+    double age;
+    const char *location;
+    double 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->member, "name") == 0) {
+            if (!jimp_string(jimp, &p->name))       return false;
+        } else if (strcmp(jimp->member, "age") == 0) {
+            if (!jimp_number(jimp, &p->age))        return false;
+        } else if (strcmp(jimp->member, "location") == 0) {
+            if (!jimp_string(jimp, &p->location))   return false;
+        } else if (strcmp(jimp->member, "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_item(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        = %lf\n", p->age);
+    printf("location   = %s\n",  p->location);
+    printf("body_count = %lf\n", p->body_count);
+}
+
+typedef struct {
+    long *items;
+    size_t count;
+    size_t capacity;
+} Numbers;
+
+int main()
+{
+    // const char *file_path = "profile.json";
+    // const char *file_path = "numbers.json";
+    // const char *file_path = "profiles.json";
+    // const char *file_path = "empty.json";
+    // const char *file_path = "one.json";
+    const char *file_path = "database.json";
+    String_Builder sb = {0};
+    if (!read_entire_file(file_path, &sb)) return 1;
+    Jimp jimp = {
+        .file_path = file_path,
+        .start = sb.items,
+        .end = sb.items + sb.count,
+        .point = sb.items,
+    };
+
+    People ps = {0};
+    Numbers xs = {0};
+    if (!jimp_object_begin(&jimp)) return 1;
+    while (jimp_object_member(&jimp)) {
+        if (strcmp(jimp.member, "profile") == 0) {
+            if (!parse_people(&jimp, &ps)) return 1;
+        } else if (strcmp(jimp.member, "number") == 0) {
+            if (!jimp_array_begin(&jimp)) return 1;
+            while (jimp_array_item(&jimp)) {
+                double x = 0;
+                if (!jimp_number(&jimp, &x)) return 1;
+                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;
+}

examples/Makefile

@@ -1,10 +1,13 @@
-CFLAGS=-Wall -Wextra -Wswitch-enum -std=c99 -pedantic -ggdb
+CFLAGS=-Wall -Wextra -Wswitch-enum -ggdb
 
 .PHONY: all
-all: 01_from_readme 02_binary_tree
+all: 01_from_readme 02_binary_tree 03_parsing_database
 
 01_from_readme: 01_from_readme.c ../jim.h
 	$(CC) $(CFLAGS) -o 01_from_readme 01_from_readme.c
 
 02_binary_tree: 02_binary_tree.c fruits.h ../jim.h
 	$(CC) $(CFLAGS) -o 02_binary_tree 02_binary_tree.c
+
+03_parsing_database: 03_parsing_database.c ../jimp.h ../thirdparty/nob.h
+	$(CC) $(CFLAGS) -o 03_parsing_database 03_parsing_database.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
+        }
+    ]
+}