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Markup language that is simple to read, to write and to parse.
zig parser html language markup typst
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748const std = @import("std");const eql = std.mem.eql;
pub const Error = error{InvalidUtf8} || std.mem.Allocator.Error;
pub fn escape(alloc: std.mem.Allocator, v: []const u8) Error![]const u8 { var acc = try std.ArrayList(u8).initCapacity(alloc, v.len); errdefer acc.deinit(alloc); const view = try std.unicode.Utf8View.init(v); var iter = view.iterator(); while (iter.nextCodepointSlice()) |rune| { if (eql(u8, rune, "&")) { try acc.appendSlice(alloc, "&"); } else if (eql(u8, rune, "'")) { try acc.appendSlice(alloc, "'"); } else if (eql(u8, rune, "<")) { try acc.appendSlice(alloc, "<"); } else if (eql(u8, rune, ">")) { try acc.appendSlice(alloc, ">"); } else if (eql(u8, rune, "\"")) { try acc.appendSlice(alloc, """); } else { try acc.appendSlice(alloc, rune); } } return acc.toOwnedSlice(alloc);}
fn doTest(alloc: std.mem.Allocator, el: []const u8, exp: []const u8) !void { const got = try escape(alloc, el); defer alloc.free(got); std.testing.expect(eql(u8, got, exp)) catch |err| { std.debug.print("{s}\n", .{got}); return err; };}
test "escaping html" { const alloc = std.testing.allocator;
try doTest(alloc, "hello world", "hello world"); try doTest(alloc, "hello&world", "hello&world"); try doTest(alloc, "hello'world", "hello'world"); try doTest(alloc, "hello<world", "hello<world"); try doTest(alloc, "hello>world", "hello>world"); try doTest(alloc, "hello\"world", "hello"world");}