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1 | (* |
2 | Domtool (http://hcoop.sf.net/) | |
3 | Copyright (C) 2004 Adam Chlipala | |
4 | ||
5 | This program is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU General Public License | |
7 | as published by the Free Software Foundation; either version 2 | |
8 | of the License, or (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | *) | |
19 | ||
20 | (* Utility functions *) | |
21 | ||
22 | signature UTIL = | |
23 | sig | |
24 | val impLoop : (unit -> 'a) -> ('a -> bool) -> ('a * 'b -> 'b) -> 'b -> unit | |
25 | (* (impLoop next stop body init) repeatedly executes next until stop returns | |
26 | * true on the result. Running state is kept in the style of foldl, with | |
27 | * the state for the next iteration being determiend by calling body with | |
28 | * the most recent next return and the current state. | |
29 | *) | |
30 | ||
31 | val ioLoop : (unit -> string) -> (string * 'b -> 'b) -> 'b -> unit | |
32 | (* impLoop specialized to work with TextIO.inputLine, where a return of "" | |
33 | * indicates end-of-file. | |
34 | *) | |
35 | val ioOptLoop : (unit -> string option) -> (string * 'b -> 'b) -> 'b -> unit | |
36 | (* Like ioLoop, but with NONE as sentinel value. *) | |
37 | ||
38 | val isIdent : char -> bool | |
39 | (* Is the character a valid part of an identifier? (lowercase letter or | |
40 | * digit? | |
41 | *) | |
42 | ||
43 | val validHost : string -> bool | |
44 | (* Valid Internet hostname with no periods? *) | |
45 | val validDomain : string -> bool | |
46 | (* Valid domain name? *) | |
47 | val validUser : string -> bool | |
48 | (* Valid UNIX username? *) | |
49 | val validEmail : string -> bool | |
50 | (* Valid e-mail address? *) | |
51 | val isTmp : string -> bool | |
52 | (* Is the name of a temporary file generated by an editor? *) | |
53 | val validIp : string -> bool | |
54 | (* Is a valid IPv4 address? *) | |
55 | ||
56 | val trimLast : string -> string | |
57 | (* Remove the last character from a string *) | |
58 | ||
59 | val toDir : string -> string | |
60 | (* Translates a domain name into a fileystem path *) | |
61 | ||
62 | val checkPath : StringSet.set * string -> bool | |
63 | (* Given a set of valid path bases and a path, is it allowable? *) | |
64 | val resolveAddr : string StringMap.map * string -> string | |
65 | (* Determine the value of an address field that may include variables. | |
66 | * Check that the final result is a validIp. *) | |
67 | val resolveDomain : string StringMap.map * string -> string | |
68 | (* Determine the value of a domain field that may include variables. | |
69 | * Check that the final result is a validDomain. *) | |
70 | end |