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gem2html.zig
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gem2html.zig
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//! This example implements a streaming converter for gemini text to HTML.
//! It reads data indefinitly from stdin and will output each recognized
//! text fragment as soon as possible.
const std = @import("std");
const gemtext = @import("gemtext");
pub fn main() !void {
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer _ = gpa.deinit();
const allocator = gpa.allocator();
var stream = std.io.getStdIn().reader();
var buffer: [16384]u8 = undefined;
var parser = gemtext.Parser.init(allocator);
defer parser.deinit();
while (true) {
const length = try stream.read(&buffer);
if (length == 0)
break;
var arena = std.heap.ArenaAllocator.init(allocator);
defer arena.deinit();
const arena_allocator = arena.allocator();
var offset: usize = 0;
while (offset < length) {
var result = try parser.feed(arena_allocator, buffer[offset..length]);
if (result.fragment) |*frag| {
defer frag.free(arena_allocator);
try gemtext.renderer.html(&[_]gemtext.Fragment{frag.*}, std.io.getStdOut().writer());
}
offset += result.consumed;
}
}
var frag = try parser.finalize(allocator);
if (frag) |*frg| {
defer frg.free(allocator);
try gemtext.renderer.html(&[_]gemtext.Fragment{frg.*}, std.io.getStdOut().writer());
}
}