Add 'ziglue/' from commit '323816262704dbee1fc1b2aa08204d55d4386b16'

git-subtree-dir: ziglue
git-subtree-mainline: d955ccf17d
git-subtree-split: 3238162627

ziglue/src/main.zig

@@ -0,0 +1,65 @@
+const std = @import("std");
+
+pub fn find_blocks(src: []const u8, blocks: *std.ArrayList([]const u8)) !void {
+    var idx: usize = 0;
+    var blk: usize = 0;
+
+    while (idx < src.len) {
+        const end = std.mem.indexOfAnyPos(u8, src, idx, "\n") orelse src.len;
+        const line = src[idx..end];
+        if (std.mem.indexOfNone(u8, line, " \t\r\n") == null) {
+            // the line is blank; a block has ended.
+            const block = src[blk..end];
+
+            std.debug.print("BLOCK:\n{s}", .{block});
+
+            try blocks.append(block);
+            blk = end + 1;
+        }
+        idx = end + 1;
+    }
+}
+
+pub fn convert(alloc: std.mem.Allocator, md: []const u8) ![]const u8 {
+    return try alloc.dupe(u8, md);
+
+    // _ = alloc;
+    // _ = md;
+    // return error.UhOh;
+    // return error.NotImplemented;
+
+    // return alloc.dupe(u8, "Hello World!");
+}
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    const alloc = gpa.allocator();
+
+    defer _ = gpa.deinit();
+
+    var args = try std.process.argsWithAllocator(alloc);
+    defer args.deinit();
+    std.debug.assert(args.skip());
+
+    var blocks = std.ArrayList([]const u8).init(alloc);
+    defer blocks.deinit();
+
+    while (args.next()) |fname| {
+        const src = load: {
+            const file = try std.fs.cwd().openFile(fname, .{ .mode = .read_only });
+            defer file.close();
+            break :load try file.readToEndAlloc(alloc, std.math.maxInt(u32));
+        };
+        defer alloc.free(src);
+
+        std.log.debug("arg '{s}' {d} bytes", .{ fname, src.len });
+
+        blocks.clearRetainingCapacity();
+        try find_blocks(src, &blocks);
+
+        // try parse(alloc, src);
+
+        // const tokens = try parse(alloc, src);
+        // defer alloc.free(tokens);
+    }
+}