ossp-pkg/cfg/00TODO
- destroy haengt in Endlosschleife
- in scanner: use an combination of dynamic buffer and atomic symbol/token sub-library
to allow first tokens of mostly arbitrary size and then to store the tokens
redundancy-free.
- Problem: \x00 oder \x{00} wird zu NUL-terminator -> use ptr+len instead
- caStr/cpStr durch yyless/yymore??
- syntax verification
- command line query tool
- error checking in scanner?
- OSSP ex support
- wieso geht sample.cfg nicht als Arg bei "make check"?
- newline in error message
$ ./cfg_test sample2.cfg
ERROR: <line 7, column 1: `1b;
<}> quu'>
- cfg_t
rewrite-uri <regex> <subst> { <rewrite-cond> }
rewrite-uri ^/(.*) /path/$1 --redirect=permanent q{
%{SOURCE} != "x"
};
Directory [--foo=A]
Argument:
- type:
- keyword ("foo") via name
- option ("--foo=BAR") via name & regex
- argument ("foo") via regex
- amount:
- 1
- 0/1 ?
- 0..n *
- 1..n +
- location:
- by position
- by name
- lookup via:
- name
- position
- regex match
foo * bar
foo = bar|quux|...
foo (bar baz quux)
foo ::= bar* ; kleene closure
foo ::= bar|baz|quux ; union
foo ::= bar baz quux ; concatenation
foo ::= {foo;...} ; sequence of ...
foo ::= (...) ; grouping
foo ::= "bar" ; fixed terminal
foo ::= /bar/ ; regex terminal
foo ::= <A> ; arbitrary argument
foo ::= <O> ; arbitrary option
SEQ ::= "{" DIR DIR* "}"
DIR ::= TOK (" " TOK)* ";"
TOK ::= ...
SEQ ::= DIR* SEQ(dir,dir,...)
DIR ::= TOK+ DIR(tok,tok,...)
TOK ::= string "..."
config ::= SEQ(directory|user|rewrite|access)
directory ::= DIR("directory",<O>*,<A>)
dir_options ::=
user ::= DIR("user",/^[a-z]$/)
rewrite ::=
access ::= "access" ("allow"|"deny"):action SEQ(access_list):acl
access_list ::= m/^!?%{ID}$/
acl ::= "acl" TOK:name acl_list
acl_list ::= SEQ(acl_entry)
acl_entry ::= acl_action "from" net-addr:src "to" net-addr:dst
acl_action ::= "allow"|"deny"
net_addr ::= net_hostname | net_ipv4addr | net_ipv6addr
sequence all {
directive --class 1;
};
directive --class 1 "foo" {
option "bar" --occur=1
};
---------------------------------------------------------------------------
foo on;
bar /bla {
foo off;
baz --fuck {
b1; b2 --nase=baer; b3; b4; b5;
} --fuck2;
};
quux a1 a2 a3 a4;
quux;
---------------------------------------------------------------------------
sequence ROOT {
directive foo;
directive bar;
directive quux --count=1:oo;
};
sequence bar-seq {
directive foo --count=0:1;
directive baz --count=1:oo;
};
directive foo {
token - on|off|yes|no;
};
directive bar {
token path /.*;
sequence bar-seq;
};
directive baz {
option fuck;
option fuck2;
sequence {
directive foo {
option nase (baer|hugo);
option foo [0-9];
token ip-address;
};
};
};
directive quux {
token --count=0:oo a.*;
};
token ip-address b1|b2|b3|b4|b5;
-------------------------------------------------------------------------------
<config> ::= "sequence" <count>? <name>;
| "sequence" <count>? <name>? "{" <directive>* "}";
<directive> ::= "directive" <token-count>? <name>;
| "directive" <token-count>? <name>? "{" <option>* <token>+ };
<option> ::= "option" <name> <regex>?;
<token> ::= "token" <name>? <regex>;
<count> ::= /^(\+|\*|\?|[0-9]+,[0-9]*|[0-9]*,[0-9]+|[0-9]+)$/
<name> ::= /^[a-zA-Z][a-zA-Z0-9_.-]*$/
<regex> ::= ...
-------------------------------------------------------------------------------
sequence ROOT {
directive * "directive" {
directive * token-1 {
token token "token";
token name /^[a-zA-Z][a-zA-Z0-9_.-]*$/;
token regex /^.+$/;
}
};
-------------------------------------------------------------------------------
directive token {
opt1 { /.../ opt2=/.../ } {
directive { /^token$/ };
name { m/.../; m/^[a-zA-Z][a-zA-Z0-9_.-]*$/ } ?;
name { m/(...|[a-zA-Z][a-zA-Z0-9_.-]*$)/ } ?;
regex { m/^.+$/ };
};
directive acl { directive=/^acl$/ addr=/^...|...$/+ };
-------------------------------------------------------------------------------
a?b((c|d)+e)?f
A m/a/ ?
B m/b/
{
{
C m/c/ ;
D m/d/
} +
E m/e/
} ?
F f
<directive-match> ::= <token-match>+
<token-match> ::= <name>? <regex> <quant>?
-------------------------------------------------------------------------------
<config> ::= "sequence" <count>? <name>;
| "sequence" <count>? <name>? "{" <directive>* "}";
<directive> ::= "directive" <name>;
| "directive" <name>? "{" <options> "}" "{" <tokens> "}";
<options> ::= <tok-match>+
<tokens> ::= <dir-match>+
<dir-match> ::= <tok-match>+
<tok-match> ::= <name>? <node-match> <quant>?
<node-match> ::= "{" <dir-match> "}" | <regex>
<option> ::= "option" <name> <regex>?;
<token> ::= "token" <name>? <regex>;
<count> ::= /^(\+|\*|\?|[0-9]+,[0-9]*|[0-9]*,[0-9]+|[0-9]+)$/
<name> ::= /^[a-zA-Z][a-zA-Z0-9_.-]*$/
<regex> ::= ...
