diff options
Diffstat (limited to 'camlp4/etc/pr_schp_main.ml')
| -rw-r--r-- | camlp4/etc/pr_schp_main.ml | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/camlp4/etc/pr_schp_main.ml b/camlp4/etc/pr_schp_main.ml deleted file mode 100644 index c535111499..0000000000 --- a/camlp4/etc/pr_schp_main.ml +++ /dev/null @@ -1,119 +0,0 @@ -(* camlp4r q_MLast.cmo ./pa_extfun.cmo *) -(* $Id$ *) - -open Format; -open Pcaml; -open Parserify; - -value nok = Pr_scheme.nok; -value ks = Pr_scheme.ks; -value patt = Pr_scheme.patt; -value expr = Pr_scheme.expr; -value find_pr_level = Pr_scheme.find_pr_level; -value pr_expr = Pr_scheme.pr_expr; -type printer_t 'a = Pr_scheme.printer_t 'a == - { pr_fun : mutable string -> Pr_scheme.next 'a; - pr_levels : mutable list (pr_level 'a) } -and pr_level 'a = Pr_scheme.pr_level 'a == - { pr_label : string; - pr_box : formatter -> (formatter -> unit) -> 'a -> unit; - pr_rules : mutable Pr_scheme.pr_rule 'a } -; - -(* extensions for rebuilding syntax of parsers *) - -value parser_cases ppf (spel, k) = - let rec parser_cases ppf (spel, k) = - match spel with - [ [] -> fprintf ppf "[: `HVbox [: b; k :] :]" - | [(sp, epo, e)] -> parser_case ppf (sp, epo, e, k) - | [(sp, epo, e) :: spel] -> - fprintf ppf "%a@ %a" parser_case (sp, epo, e, nok) - parser_cases (spel, k) ] - and parser_case ppf (sp, epo, e, k) = - fprintf ppf "(@[@[(%a)%t@]@ %a@]" stream_patt (sp, nok) - (fun ppf -> - match epo with - [ Some p -> fprintf ppf "@ %a" patt (p, nok) - | None -> () ]) - expr (e, ks ")" k) - and stream_patt ppf (sp, k) = - match sp with - [ [] -> k ppf - | [(spc, None)] -> fprintf ppf "%a" stream_patt_comp (spc, k) - | [(spc, Some e)] -> - fprintf ppf "(@[? %a@ %a@]" stream_patt_comp (spc, nok) - expr (e, ks ")" k) - | [(spc, None) :: spcl] -> - fprintf ppf "%a@ %a" stream_patt_comp (spc, nok) stream_patt (spcl, k) - | [(spc, Some e) :: spcl] -> - fprintf ppf "(@[? %a@ %a@]@ %a" stream_patt_comp (spc, nok) - expr (e, ks ")" nok) stream_patt (spcl, k) ] - and stream_patt_comp ppf (spc, k) = - match spc with - [ SPCterm (p, w) -> - match w with - [ Some e -> - fprintf ppf "(` %a@ %a" patt (p, nok) expr (e, ks ")" k) - | None -> fprintf ppf "(` %a" patt (p, ks ")" k) ] - | SPCnterm p e -> - fprintf ppf "(@[%a %a@]" patt (p, nok) expr (e, ks ")" k) - | SPCsterm p -> fprintf ppf "%a" patt (p, k) ] - in - parser_cases ppf (spel, k) -; - -value parser_body ppf (e, k) = - let (bp, e) = - match e with - [ <:expr< let $bp$ = Stream.count strm__ in $e$ >> -> (Some bp, e) - | e -> (None, e) ] - in - match parser_of_expr e with - [ [] -> - fprintf ppf "(parser%t%t" - (fun ppf -> - match bp with - [ Some p -> fprintf ppf "@ %a" patt (p, nok) - | _ -> ()]) - (ks ")" k) - | spel -> - fprintf ppf "(@[<v>@[parser%t@]@ @[<v 0>%a@]@]" - (fun ppf -> - match bp with - [ Some p -> fprintf ppf "@ %a" patt (p, nok) - | _ -> ()]) - parser_cases (spel, ks ")" k) ] -; - -value pmatch ppf (e, k) = - let (me, e) = - match e with - [ <:expr< let (strm__ : Stream.t _) = $me$ in $e$ >> -> (me, e) - | _ -> failwith "Pr_schp_main.pmatch" ] - in - let (bp, e) = - match e with - [ <:expr< let $bp$ = Stream.count strm__ in $e$ >> -> (Some bp, e) - | e -> (None, e) ] - in - let spel = parser_of_expr e in - fprintf ppf "(@[@[match_with_parser@ %a@]%t@ @[<v 0>%a@]@]" expr (me, nok) - (fun ppf -> - match bp with - [ Some p -> fprintf ppf "@ %a" patt (p, nok) - | _ -> () ]) - parser_cases (spel, ks ")" k) -; - -pr_expr_fun_args.val := - extfun pr_expr_fun_args.val with - [ <:expr< fun [(strm__ : $_$) -> $_$] >> as ge -> ([], ge) ]; - -let lev = find_pr_level "top" pr_expr.pr_levels in -lev.pr_rules := - extfun lev.pr_rules with - [ <:expr< fun (strm__ : $_$) -> $x$ >> -> - fun ppf curr next dg k -> fprintf ppf "%a" parser_body (x, k) - | <:expr< let (strm__ : Stream.t _) = $_$ in $_$ >> as e -> - fun ppf curr next dg k -> fprintf ppf "%a" pmatch (e, k) ]; |