X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=helm%2FDEVEL%2Fpxp%2Fnetstring%2Fnetmappings.mli;fp=helm%2FDEVEL%2Fpxp%2Fnetstring%2Fnetmappings.mli;h=0000000000000000000000000000000000000000;hp=1c52d0729921d114b1abbe94d870288d44f49b45;hb=3ef089a4c58fbe429dd539af6215991ecbe11ee2;hpb=1c7fb836e2af4f2f3d18afd0396701f2094265ff diff --git a/helm/DEVEL/pxp/netstring/netmappings.mli b/helm/DEVEL/pxp/netstring/netmappings.mli deleted file mode 100644 index 1c52d0729..000000000 --- a/helm/DEVEL/pxp/netstring/netmappings.mli +++ /dev/null @@ -1,115 +0,0 @@ -(* $Id$ - * ---------------------------------------------------------------------- - *) - -type from_uni_list = - U_nil - | U_single of (int*int) - | U_list of (int*int) list -;; - (* A representation of (int*int) list that is optimized for the case that - * lists with 0 and 1 elements are the most frequent cases. - *) - - -val to_unicode : (Netconversion.encoding, - int array Lazy.t) Hashtbl.t;; - -val from_unicode : (Netconversion.encoding, - from_uni_list array Lazy.t) Hashtbl.t;; - (* These hashtables are used internally by the parser to store - * the conversion tables from 8 bit encodings to Unicode and vice versa. - * It is normally not necessary to access these tables; the - * Netconversion module does it already for you. - * - * Specification of the conversion tables: - * - * to_unicode: maps an 8 bit code to Unicode, i.e. - * let m = Hashtbl.find `Enc_isoXXX to_unicode in - * let unicode = m.(isocode) - * - This may be (-1) to indicate that the code point is not defined. - * - * from_unicode: maps Unicode to an 8 bit code, i.e. - * let m = Hashtbl.find `Enc_isoXXX from_unicode in - * let l = m.(unicode land 255) - * Now search in l the pair (unicode, isocode), and return isocode. - * - * Note: It is guaranteed that both arrays have always 256 elements. - *) - -val lock : unit -> unit - (* In multi-threaded applications: obtains a lock which is required to - * Lazy.force the values found in to_unicode and from_unicode. - * In single-threaded applications: a NO-OP - *) - -val unlock : unit -> unit - (* In multi-threaded applications: releases the lock which is required to - * Lazy.force the values found in to_unicode and from_unicode. - * In single-threaded applications: a NO-OP - *) - - -val init_mt : (unit -> unit) -> (unit -> unit) -> unit - (* Internally used; see netstring_mt.ml *) - - -(* ---------------------------------------- *) - -(* The following comment was written when the conversion module belonged - * to the PXP package (Polymorhic XML Parser). - *) - -(* HOW TO ADD A NEW 8 BIT CODE: - * - * It is relatively simple to add a new 8 bit code to the system. This - * means that the parser can read and write files with the new encoding; - * this does not mean that the parser can represent the XML tree internally - * by the new encoding. - * - * - Put a new unimap file into the "mappings" directory. The file format - * is simple; please look at the already existing files. - * The name of the file determines the internal name of the code: - * If the file is called .unimap, the code will be called - * `Enc_. - * - * - Extend the type "encoding" in pxp_types.mli and pxp_types.ml - * - * - Extend the two functions encoding_of_string and string_of_encoding - * in pxp_types.ml - * - * - Recompile the parser - * - * Every encoding consumes at least 3kB of memory, but this may be much more - * if the code points are dispersed on the Unicode code space. - * - * Perhaps the addition of new codes will become even simpler in future - * versions of PXP; but it is currently more important to support - * non-8-bit codes, too. - * Every contribution of new codes to PXP is welcome! - *) - - -(* ====================================================================== - * History: - * - * $Log$ - * Revision 1.1 2000/11/17 09:57:28 lpadovan - * Initial revision - * - * Revision 1.2 2000/08/29 00:47:24 gerd - * New type for the conversion Unicode to 8bit. - * Conversion tables are now lazy. Thus also mutexes are required. - * - * Revision 1.1 2000/08/13 00:02:57 gerd - * Initial revision. - * - * - * ====================================================================== - * OLD LOGS FROM THE PXP PACKAGE (FILE NAME pxp_mappings.mli): - * - * Revision 1.1 2000/07/27 00:40:02 gerd - * Initial revision. - * - * - *)