diff options
| author | Nico Weber <thakis@chromium.org> | 2020-07-26 20:16:55 -0400 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-07-27 12:11:19 +0200 |
| commit | 4d783338c1ce1ce05d9eceb49529c46d524bfd40 (patch) | |
| tree | cf4b6b8dac567d732a7ad8a9c3355f1d6557c335 | |
| parent | 34dc1634418aded05b3b1e8230b39b297e1307ce (diff) | |
| download | serenity-4d783338c1ce1ce05d9eceb49529c46d524bfd40.zip | |
CppLexer: Support L, u, u8, U prefixes on string and char literals
| -rw-r--r-- | Libraries/LibGUI/CppLexer.cpp | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/Libraries/LibGUI/CppLexer.cpp b/Libraries/LibGUI/CppLexer.cpp index e5918604bc..45fbd310eb 100644 --- a/Libraries/LibGUI/CppLexer.cpp +++ b/Libraries/LibGUI/CppLexer.cpp @@ -308,6 +308,22 @@ Vector<CppToken> CppLexer::lex() } }; + auto match_string_prefix = [&](char quote) -> size_t { + if (peek() == quote) + return 1; + if (peek() == 'L' && peek(1) == quote) + return 2; + if (peek() == 'u') { + if (peek(1) == quote) + return 2; + if (peek(1) == '8' && peek(2) == quote) + return 3; + } + if (peek() == 'U' && peek(1) == quote) + return 2; + return 0; + }; + while (m_index < m_input.length()) { auto ch = peek(); if (isspace(ch)) { @@ -597,13 +613,13 @@ Vector<CppToken> CppLexer::lex() emit_token_equals(CppToken::Type::Slash, CppToken::Type::SlashEquals); continue; } - if (ch == '"') { + if (size_t prefix = match_string_prefix('"'); prefix > 0) { begin_token(); - consume(); + for (size_t i = 0; i < prefix; ++i) + consume(); while (peek()) { if (peek() == '\\') { - size_t escape = match_escape_sequence(); - if (escape > 0) { + if (size_t escape = match_escape_sequence(); escape > 0) { commit_token(CppToken::Type::DoubleQuotedString); begin_token(); for (size_t i = 0; i < escape; ++i) @@ -620,13 +636,13 @@ Vector<CppToken> CppLexer::lex() commit_token(CppToken::Type::DoubleQuotedString); continue; } - if (ch == '\'') { + if (size_t prefix = match_string_prefix('\''); prefix > 0) { begin_token(); - consume(); + for (size_t i = 0; i < prefix; ++i) + consume(); while (peek()) { if (peek() == '\\') { - size_t escape = match_escape_sequence(); - if (escape > 0) { + if (size_t escape = match_escape_sequence(); escape > 0) { commit_token(CppToken::Type::SingleQuotedString); begin_token(); for (size_t i = 0; i < escape; ++i) |