* evaluate chains of ||, &&, and string concatenation non-recursively
* limit other types of recursion to 20 levels
* avoid some string copies if concatenating more than 2 strings
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1204087 13f79535-47bb-0310-9956-ffa450edef68
- add possibility to have expressions that evaluate to a string and not to
a boolean value
- modify ap_expr_parse_cmd() interface to support this and make it more
convenient to use in general
- rename AP_EXPR_FLAGS_* to AP_EXPR_FLAG_* for consistency
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1142164 13f79535-47bb-0310-9956-ffa450edef68
- allow lookup function to pre-parse string constant arguments
(used for subnet masks so far)
- various bug fixes for binary operators
- do strdup() for error messages created on the stack to avoid corruption
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1039900 13f79535-47bb-0310-9956-ffa450edef68
- implement regex backreferences and make them available for setting
envvars in SetEnvIfExpr
- implement nested function calls in %-syntax: %{func1:%{func2:arg}}
- actually implement evaluation of concatenation operator (oops...)
- Fix <If ... > treating an internal error as success
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1037504 13f79535-47bb-0310-9956-ffa450edef68
the new parser. Rework ap_expr's public interface and provide hooks for modules
to add variables and functions.
The Netware and Windows build files still need to be adjusted
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1032073 13f79535-47bb-0310-9956-ffa450edef68
