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(MIRROR) A templating engine with (not yet reimplemented) Lua scripting git.gae.moe/grace/htmlua/src/branch/main
zig lua html cgi
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677const std = @import("std");const Io = std.Io;const Allocator = std.mem.Allocator;const ArenaAllocator = std.heap.ArenaAllocator;const SplitIterator = std.mem.SplitIterator;const DelimiterType = std.mem.DelimiterType;const ArrayList = std.ArrayList;const StringArrayHashMap = std.StringArrayHashMapUnmanaged;
pub const tags = @import("tags.zig");pub const utils = @import("utils.zig");
pub const ParserFn = fn ( arena: *ArenaAllocator, io: Io, state: *Parser, reader: *Io.Reader, writer: *Io.Writer, attrs: *SplitIterator(u8, DelimiterType.scalar), ) anyerror!void;
pub const ParserTag = struct { name: []const u8, parse_fn: *const ParserFn,};
pub const Parser = struct { component_resolver: *const fn (alloc: *ArenaAllocator, io: Io, path: []const u8) anyerror!*Io.Reader, exported_parts: StringArrayHashMap([]const u8), tags: []const ParserTag, tag_stack: ArrayList([]const u8),};
pub fn parseTemplate(arena: *ArenaAllocator, io: Io, state: *Parser, reader: *Io.Reader, writer: *Io.Writer) !void { outer: while (true) { _ = reader.streamDelimiter(writer, '<') catch |err| { if (err == Io.Reader.Error.EndOfStream) break else return err; }; // consume '<' _ = try reader.takeByte(); if (try reader.peekByte() == '/') { // consume '/' _ = try reader.takeByte(); const last_tag = state.tag_stack.getLastOrNull() orelse ""; // if reached closing tag, send execution back up the stack if (std.mem.eql(u8, last_tag, try reader.peekDelimiterExclusive('>'))) { // consume closing tag _ = try reader.takeDelimiterInclusive('>'); return; } else { try writer.writeAll("</"); continue :outer; } } const inside = reader.takeDelimiterExclusive('>') catch |err| { if (err == error.StreamTooLong) { try writer.writeByte('<'); break :outer; } else return err; }; var it = std.mem.splitScalar(u8, inside, ' '); const tag_name = it.first(); for (state.tags) |tag| { if (std.mem.eql(u8, tag.name, tag_name) == true) { // consume '>' _ = try reader.takeByte(); try tag.parse_fn(arena, io, state, reader, writer, &it); continue :outer; } }
try writer.writeByte('<'); try writer.writeAll(inside); }}