Make compile on 0.7.0, Remove string struct, and update older code.

README.md

@@ -1,32 +1,43 @@
 
-A String struct made for Zig.
+Implements common string operations such as substring searching.
+
+Note: Most of these functions are in std.mem.
 
 Inspired by this repo: https://github.com/clownpriest/strings/
 
 To test:
-```
-$ cd zig-string/
-$ zig test string.zig
+```bash
+cd zig-string
+zig test string.zig
 ```
 
 Basic Usage:
 ```zig
 const std = @import("std");
-const String = @import("/some/path/string.zig").String;
+const print = std.debug.print;
+const string = @import("string.zig");
 
 pub fn main() !void {
-    var buf: [1024]u8 = undefined;
-    var fba = std.heap.ThreadSafeFixedBufferAllocator.init(buf[0..]);
-    var s = try String.init(&fba.allocator, "hello, world");
-    defer s.deinit();
-    var matches = try s.findSubstringIndices(&fba.allocator, "hello");
-    defer fba.allocator.free(matches);
+    var buffer: [1024]u8 = undefined;
+    var fba = std.heap.FixedBufferAllocator.init(&buffer);
+    const allocator = &fba.allocator;
+
+    var string_lit = "hello, world";
+    var matches = try string.findSubstringIndices(allocator, string_lit, "world");
+    defer allocator.free(matches);
+
     // Should print:
-    // 0
-    // hello, world
+    // true
+    // 7
+    print("{}\n", .{ string.contains(allocator, string_lit, "hello") });
     for (matches) |val| {
-        std.debug.warn("{}\n", val);
+        print("{}\n", .{ val });
     }
-    std.debug.warn("{}\n", s.toSliceConst());
 }
 ```
+
+This example can be run with:
+```bash
+cd zig-string
+zig run readme.zig
+```

build.zig

@@ -0,0 +1,15 @@
+const Builder = @import("std").build.Builder;
+
+pub fn build(b: *Builder) void {
+    const mode = b.standardReleaseOptions();
+    const lib = b.addStaticLibrary("string", "string.zig");
+    lib.setBuildMode(mode);
+    lib.install();
+
+    var string_tests = b.addTest("string.zig");
+    string_tests.setBuildMode(mode);
+
+
+    const test_step = b.step("test", "Run library tests");
+    test_step.dependOn(&string_tests.step);
+}

readme.zig

@@ -0,0 +1,21 @@
+const std = @import("std");
+const print = std.debug.print;
+const string = @import("string.zig");
+
+pub fn main() !void {
+    var buffer: [1024]u8 = undefined;
+    var fba = std.heap.FixedBufferAllocator.init(&buffer);
+    const allocator = &fba.allocator;
+
+    var string_lit = "hello, world";
+    var matches = try string.findSubstringIndices(allocator, string_lit, "world");
+    defer allocator.free(matches);
+
+    // Should print:
+    // true
+    // 7
+    print("{}\n", .{ string.contains(allocator, string_lit, "hello") });
+    for (matches) |val| {
+        print("{}\n", .{ val });
+    }
+}