diff options
Diffstat (limited to 'src/js_lexer.zig')
| -rw-r--r-- | src/js_lexer.zig | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/js_lexer.zig b/src/js_lexer.zig index 8137c71db..505a45869 100644 --- a/src/js_lexer.zig +++ b/src/js_lexer.zig @@ -1999,7 +1999,6 @@ pub fn NewLexer(comptime json_options: JSONOptions) type { lexer.previous_backslash_quote_in_jsx = backslash; } try lexer.step(); - // not sure about this! break :string_literal; }, else => { @@ -2165,8 +2164,9 @@ pub fn NewLexer(comptime json_options: JSONOptions) type { while (iterator.next(&cursor)) { if (cursor.c == '&') { - if (strings.indexOfChar(text[cursor.i..], ';')) |length| { - const entity = text[cursor.i .. @as(usize, cursor.i) + length]; + if (strings.indexOfChar(text[cursor.width + cursor.i ..], ';')) |length| { + const end = cursor.width + cursor.i; + const entity = text[end .. end + length]; if (entity[0] == '#') { var number = entity[1..entity.len]; var base: u8 = 10; @@ -2174,9 +2174,21 @@ pub fn NewLexer(comptime json_options: JSONOptions) type { number = number[1..number.len]; base = 16; } - cursor.c = try std.fmt.parseInt(i32, number, base); - cursor.i += @intCast(u32, length) + 1; - cursor.width = 0; + cursor.c = std.fmt.parseInt(i32, number, base) catch |err| brk: { + switch (err) { + error.InvalidCharacter => { + lexer.addError(lexer.start, "Invalid JSX entity escape: {s}", .{entity}, false); + }, + error.Overflow => { + lexer.addError(lexer.start, "JSX entity escape is too big: {s}", .{entity}, false); + }, + } + + break :brk strings.unicode_replacement; + }; + + cursor.i += @intCast(u32, length); + cursor.width = 1; } else if (tables.jsxEntity.get(entity)) |ent| { cursor.c = ent; cursor.i += @intCast(u32, length) + 1; |