diff options
| author | Earlopain <[email protected]> | 2025-06-12 14:12:40 +0200 |
|---|---|---|
| committer | git <[email protected]> | 2025-06-30 12:32:31 +0000 |
| commit | 3071c5d04cb4369ee8118ece30fb2887205f6c61 (patch) | |
| tree | 6caee4669ab609ae90c20e11314d421faa604d0d | |
| parent | 4e5c8c19a722f979007c83cf15a3a270a0de8f53 (diff) | |
[ruby/prism] Fix parser translator with trailing backslash in `%W` /`%I` array
https://docs.ruby-lang.org/en/master/syntax/literals_rdoc.html#label-25w+and+-25W-3A+String-Array+Literals
> %W allow escape sequences described in Escape Sequences. However the continuation line <newline> is not usable because it is interpreted as the escaped newline described above.
https://github.com/ruby/prism/commit/f5c7460ad5
| -rw-r--r-- | lib/prism/translation/parser/lexer.rb | 7 | ||||
| -rw-r--r-- | test/prism/fixtures/strings.txt | 28 |
2 files changed, 34 insertions, 1 deletions
diff --git a/lib/prism/translation/parser/lexer.rb b/lib/prism/translation/parser/lexer.rb index 22ca3b6321..dd4867415c 100644 --- a/lib/prism/translation/parser/lexer.rb +++ b/lib/prism/translation/parser/lexer.rb @@ -425,7 +425,12 @@ module Prism end current_string << unescape_string(value, quote_stack.last) - if (backslash_count = token.value[/(\\{1,})\n/, 1]&.length).nil? || backslash_count.even? || !interpolation?(quote_stack.last) + relevant_backslash_count = if quote_stack.last.start_with?("%W", "%I") + 0 # the last backslash escapes the newline + else + token.value[/(\\{1,})\n/, 1]&.length || 0 + end + if relevant_backslash_count.even? || !interpolation?(quote_stack.last) tokens << [:tSTRING_CONTENT, [current_string, range(start_offset, start_offset + current_length)]] break end diff --git a/test/prism/fixtures/strings.txt b/test/prism/fixtures/strings.txt index 77e1e4acff..1419f975b7 100644 --- a/test/prism/fixtures/strings.txt +++ b/test/prism/fixtures/strings.txt @@ -99,6 +99,34 @@ bar) d ] +%w[ + foo\nbar baz\n\n\ + bat\n\\\n\foo +] + +%W[ + foo\nbar baz\n\n\ + bat\n\\\n\foo +] + +%w[foo\ + bar + baz\\ + bat + 1\n + 2 + 3\\n +] + +%W[foo\ + bar + baz\\ + bat + 1\n + 2 + 3\\n +] + %W[f\u{006f 006f}] %W[a b#{c}d e] |