This patch makes several scripts and PHP development tools files
executable and adds more proper shebangs to the PHP scripts.
The `#!/usr/bin/env php` shebang provides running the script via
`./script.php` and uses env to find PHP script location on the system.
At the same time it still provides running the script with a user
defined PHP location using `php script.php`.
Some editors utilizing .editorconfig automatically trim whitespaces. For
convenience this patch removes whitespaces in certain build files:
- ext/*/config*.m4
- configure.ac
- acinclude.m4
The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.
In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.
This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
If a locale other than C is active, character tables are saved into the
compile context. Every compiled pattern will have a pointer to the
character table, that was present in the context at the time of the
pattern compilation. Thus, the cache entries don't need to carry char
tables pointer, which reduces their size to 8 bytes on 64-bit. Instead,
the generated character tables are tracked in a separate HashTable. If a
character table was generated before, it'll be assigned to the compile
context when the locale changes. Otherwise a new char table will be
generated and cached.
For the standard layout the first option is pkg-config. Otherwise,
pcre2-config is used, which is produced by a manual installation into a
prefix. This removes the most of the hackish pieces like checking for
the lib filenames and parsing headers.
PHP requires integer typehints to be written "int" and does not
allow "integer" as an alias. This changes type error messages to
match the actual type name and avoids confusing messages like
"must be of the type integer, integer given".
