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feat: add support for escape sequences \a, \b, \f, \r, \v in string parsing

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Implement the remaining standard C escape codes in the readString function
of the Wren compiler, removing the TODO comment about missing escapes.
Adds handling for alert (a), backspace (b), form feed (f), carriage return (r),
and vertical tab (v) escape sequences.
This commit is contained in:
Bob Nystrom
2014-01-13 03:24:30 +00:00
parent fc4880774e
commit 2e34a5c42b
1 changed files with 5 additions and 2 deletions
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src/wren_compiler.c
+5 -2
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@@ -621,15 +621,18 @@ static void readString(Parser* parser)
{
case '"': addStringChar(parser, '"'); break;
case '\\': addStringChar(parser, '\\'); break;
case 'a': addStringChar(parser, '\a'); break;
case 'b': addStringChar(parser, '\b'); break;
case 'f': addStringChar(parser, '\f'); break;
case 'n': addStringChar(parser, '\n'); break;
case 'r': addStringChar(parser, '\r'); break;
case 't': addStringChar(parser, '\t'); break;
case 'v': addStringChar(parser, '\v'); break;
case 'u': readUnicodeEscape(parser); break;
default:
// TODO: Emit error token.
break;
}
// TODO: Other escapes (\r, etc.), Unicode escape sequences.
}
else
{