To clean up the mess here a bit, check for invalid octal digits
with an explicit loop instead of mixing this into the string to
number conversion.
Also clean up some type usage.
Instead of handling shebang lines by adjusting the file pointer in
individual SAPIs, move the handling into the lexer, where this is
both a lot simpler and more robust. Whether the shebang should be
skipped is controlled by CG(skip_shebang) -- we might want to do
that in more cases.
This fixed bugs #60677 and #78066.
- Checks and defines are not relevant for files that include it anymore
- Some code is not used anymore
- Defines are a bit duplicated in zend_portability.h and TSRM.h file
- MAXPATHLEN defs moved to zend_virtual_cwd.h
If a PHP file contains an invalid hex literal such as `0x_10`, the expected error
is `Parse error: syntax error, unexpected 'x_10' (T_STRING) in %s on line %d`.
This already worked correctly on Linux, but on Windows prior to this patch a different
error was produced: `Parse error: Invalid numeric literal in %s on line %d`.
This reverts commit e528762c1c.
Dmitry reports that this has a non-trivial impact on parsing
overhead, especially on 32-bit systems. As we don't have a strong
need for this change right now, I'm reverting it.
See also comments on
e528762c1c.
Locations for AST nodes are now tracked with the help of bison
location tracking. This is more accurate than what we currently do
and easier to extend with more information.
A zend_ast_loc structure is introduced, which is used for the location
stack. Currently it only holds the start lineno, but can be extended
to also hold end lineno and offset/column information in the future.
All AST constructors now accept a zend_ast_loc* as first argument, and
will use it to determine their lineno. Previously this used either the
CG(zend_lineno), or the smallest AST lineno of child nodes.
On the parser side, the location structure for a whole rule can be
obtained using the &@$ character salad.
RFC: https://wiki.php.net/rfc/null_coalesce_equal_operator
$a ??= $b is $a ?? ($a = $b), with the difference that $a is only
evaluated once, to the degree that this is possible. In particular
in $a[foo()] ?? $b function foo() is only ever called once.
However, the variable access themselves will be reevaluated.
