From: Jay Freeman (saurik) <saurik@saurik.com>
Date: Tue, 24 Nov 2015 08:20:06 +0000 (-0800)
Subject: Implement all of the crazy ECMAScript octal stuff.
X-Git-Tag: v0.9.590~292
X-Git-Url: https://git.saurik.com/cycript.git/commitdiff_plain/a703494adeea8b4b225e7bb58eacf94e7f881d01?ds=sidebyside

Implement all of the crazy ECMAScript octal stuff.
---

diff --git a/Cycript.l.in b/Cycript.l.in
index 85db0e8..59ce0f8 100644
--- a/Cycript.l.in
+++ b/Cycript.l.in
@@ -148,7 +148,7 @@ int H(char c) {
 %option ecs
 %option align
 
-Escape   \\[\\'"bfnrtv]|\\0|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\\n
+Escape \\[\\'"bfnrtv]|\\[0-7]|\\[4-7][0-7]|\\[0-3][0-7][0-7]?|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\\n
 
 IdentifierStart [a-zA-Z$_]
 IdentifierPart  [a-zA-Z$_0-9]
@@ -397,9 +397,11 @@ XMLName {XMLNameStart}{XMLNamePart}*
 
 {IdentifierStart}{IdentifierPart}* L C I(identifier, Identifier(Y), tk::Identifier_, hi::Identifier);
 
+0[0-7]+ L C I(number, Number(strtoull(yytext + 1, NULL, 8)), tk::NumericLiteral, hi::Constant);
+0[0-9]+ L C I(number, Number(strtoull(yytext + 1, NULL, 10)), tk::NumericLiteral, hi::Constant);
 
 0[xX][0-9a-fA-F]+ L C I(number, Number(strtoull(yytext + 2, NULL, 16)), tk::NumericLiteral, hi::Constant);
-0[0-7]+ L C I(number, Number(strtoull(yytext + 1, NULL, 8)), tk::NumericLiteral, hi::Constant);
+0[oO][0-7]+ L C I(number, Number(strtoull(yytext + 2, NULL, 8)), tk::NumericLiteral, hi::Constant);
 0[bB][0-1]+ L C I(number, Number(strtoull(yytext + 2, NULL, 2)), tk::NumericLiteral, hi::Constant);
 
 (\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?)([eE][+-]?[0-9]+)? L C I(number, Number(strtod(yytext, NULL)), tk::NumericLiteral, hi::Constant);
@@ -425,7 +427,22 @@ XMLName {XMLNameStart}{XMLNamePart}*
                 case 'r': next = '\r'; break;
                 case 't': next = '\t'; break;
                 case 'v': next = '\v'; break;
-                case '0': next = '\0'; break;
+
+                case '0': case '1': case '2': case '3':
+                    if (yytext[i + 1] < '0' || yytext[i + 1] > '7')
+                        next = H(yytext[i]), i += 0;
+                    else if (yytext[i + 2] < '0' || yytext[i + 2] > '7')
+                        next = H(yytext[i]) << 3 | H(yytext[i + 1]), i += 1;
+                    else
+                        next = H(yytext[i]) << 6 | H(yytext[i + 1]) << 3 | H(yytext[i + 2]), i += 2;
+                break;
+
+                case '4': case '5': case '6': case '7':
+                    if (yytext[i + 1] < '0' || yytext[i + 1] > '7')
+                        next = H(yytext[i]), i += 0;
+                    else
+                        next = H(yytext[i]) << 3 | H(yytext[i + 1]), i += 1;
+                break;
 
                 case 'x':
                     next = H(yytext[i + 1]) << 4 | H(yytext[i + 2]);