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Shell: Add support for octal escapes in strings

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This adds all three common prefixes (\0, \o and \c).
This commit is contained in:
Ali Mohammad Pur 2024-03-21 17:45:54 +01:00 committed by Andreas Kling
parent ce4396d6ff
commit 6adf1be06b
Notes: sideshowbarker 2024-07-17 07:20:49 +09:00 
Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/6adf1be06b
Pull-request: https://github.com/SerenityOS/serenity/pull/23668
1 changed files with 19 additions and 0 deletions
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19
Userland/Shell/Parser.cpp
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@ -1485,6 +1485,25 @@ RefPtr<AST::Node> Parser::parse_string_inner(StringEndCondition condition)
break;
}
case '0':
case 'o':
case 'c': {
auto read_anything = false;
u8 byte = 0;
auto start = m_offset;
while (!at_end() && is_ascii_octal_digit(peek())) {
if (byte > 32)
break;
read_anything = true;
byte *= 8;
byte += consume() - '0';
}
if (read_anything)
builder.append(byte);
else
builder.append(m_input.substring_view(start, m_offset - start));
break;
}
case 'a':
builder.append('\a');
break;