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Diffstat (limited to 'lib/pp.ml4')
| -rw-r--r-- | lib/pp.ml4 | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/lib/pp.ml4 b/lib/pp.ml4 deleted file mode 100644 index f13a3d16..00000000 --- a/lib/pp.ml4 +++ /dev/null @@ -1,351 +0,0 @@ -(************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2014 *) -(* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) -(************************************************************************) - -open Pp_control - -(* This should not be used outside of this file. Use - Flags.print_emacs instead. This one is updated when reading - command line options. This was the only way to make [Pp] depend on - an option without creating a circularity: [Flags. -> [Util] -> - [Pp] -> [Flags. *) -let print_emacs = ref false -let make_pp_emacs() = print_emacs:=true -let make_pp_nonemacs() = print_emacs:=false - -(* The different kinds of blocks are: - \begin{description} - \item[hbox:] Horizontal block no line breaking; - \item[vbox:] Vertical block each break leads to a new line; - \item[hvbox:] Horizontal-vertical block: same as vbox, except if - this block is small enough to fit on a single line - \item[hovbox:] Horizontal or Vertical block: breaks lead to new line - only when necessary to print the content of the block - \item[tbox:] Tabulation block: go to tabulation marks and no line breaking - (except if no mark yet on the reste of the line) - \end{description} - *) - -let comments = ref [] - -let rec split_com comacc acc pos = function - [] -> comments := List.rev acc; comacc - | ((b,e),c as com)::coms -> - (* Take all comments that terminates before pos, or begin exactly - at pos (used to print comments attached after an expression) *) - if e<=pos || pos=b then split_com (c::comacc) acc pos coms - else split_com comacc (com::acc) pos coms - - -type block_type = - | Pp_hbox of int - | Pp_vbox of int - | Pp_hvbox of int - | Pp_hovbox of int - | Pp_tbox - -type 'a ppcmd_token = - | Ppcmd_print of 'a - | Ppcmd_box of block_type * ('a ppcmd_token Stream.t) - | Ppcmd_print_break of int * int - | Ppcmd_set_tab - | Ppcmd_print_tbreak of int * int - | Ppcmd_white_space of int - | Ppcmd_force_newline - | Ppcmd_print_if_broken - | Ppcmd_open_box of block_type - | Ppcmd_close_box - | Ppcmd_close_tbox - | Ppcmd_comment of int - -type 'a ppdir_token = - | Ppdir_ppcmds of 'a ppcmd_token Stream.t - | Ppdir_print_newline - | Ppdir_print_flush - -type ppcmd = (int*string) ppcmd_token - -type std_ppcmds = ppcmd Stream.t - -type 'a ppdirs = 'a ppdir_token Stream.t - -(* Compute length of an UTF-8 encoded string - Rem 1 : utf8_length <= String.length (equal if pure ascii) - Rem 2 : if used for an iso8859_1 encoded string, the result is - wrong in very rare cases. Such a wrong case corresponds to any - sequence of a character in range 192..253 immediately followed by a - character in range 128..191 (typical case in french is "déçu" which - is counted 3 instead of 4); then no real harm to use always - utf8_length even if using an iso8859_1 encoding *) - -let utf8_length s = - let len = String.length s - and cnt = ref 0 - and nc = ref 0 - and p = ref 0 in - while !p < len do - begin - match s.[!p] with - | '\000'..'\127' -> nc := 0 (* ascii char *) - | '\128'..'\191' -> nc := 0 (* cannot start with a continuation byte *) - | '\192'..'\223' -> nc := 1 (* expect 1 continuation byte *) - | '\224'..'\239' -> nc := 2 (* expect 2 continuation bytes *) - | '\240'..'\247' -> nc := 3 (* expect 3 continuation bytes *) - | '\248'..'\251' -> nc := 4 (* expect 4 continuation bytes *) - | '\252'..'\253' -> nc := 5 (* expect 5 continuation bytes *) - | '\254'..'\255' -> nc := 0 (* invalid byte *) - end ; - incr p ; - while !p < len && !nc > 0 do - match s.[!p] with - | '\128'..'\191' (* next continuation byte *) -> incr p ; decr nc - | _ (* not a continuation byte *) -> nc := 0 - done ; - incr cnt - done ; - !cnt - -(* formatting commands *) -let str s = [< 'Ppcmd_print (utf8_length s,s) >] -let stras (i,s) = [< 'Ppcmd_print (i,s) >] -let brk (a,b) = [< 'Ppcmd_print_break (a,b) >] -let tbrk (a,b) = [< 'Ppcmd_print_tbreak (a,b) >] -let tab () = [< 'Ppcmd_set_tab >] -let fnl () = [< 'Ppcmd_force_newline >] -let pifb () = [< 'Ppcmd_print_if_broken >] -let ws n = [< 'Ppcmd_white_space n >] -let comment n = [< ' Ppcmd_comment n >] - -(* derived commands *) -let mt () = [< >] -let spc () = [< 'Ppcmd_print_break (1,0) >] -let cut () = [< 'Ppcmd_print_break (0,0) >] -let align () = [< 'Ppcmd_print_break (0,0) >] -let int n = str (string_of_int n) -let real r = str (string_of_float r) -let bool b = str (string_of_bool b) -let strbrk s = - let rec aux p n = - if n < String.length s then - if s.[n] = ' ' then - if p=n then [< spc (); aux (n+1) (n+1) >] - else [< str (String.sub s p (n-p)); spc (); aux (n+1) (n+1) >] - else aux p (n+1) - else if p=n then [< >] else [< str (String.sub s p (n-p)) >] - in aux 0 0 - -let ismt s = try let _ = Stream.empty s in true with Stream.Failure -> false - -(* boxing commands *) -let h n s = [< 'Ppcmd_box(Pp_hbox n,s) >] -let v n s = [< 'Ppcmd_box(Pp_vbox n,s) >] -let hv n s = [< 'Ppcmd_box(Pp_hvbox n,s) >] -let hov n s = [< 'Ppcmd_box(Pp_hovbox n,s) >] -let t s = [< 'Ppcmd_box(Pp_tbox,s) >] - -(* Opening and closing of boxes *) -let hb n = [< 'Ppcmd_open_box(Pp_hbox n) >] -let vb n = [< 'Ppcmd_open_box(Pp_vbox n) >] -let hvb n = [< 'Ppcmd_open_box(Pp_hvbox n) >] -let hovb n = [< 'Ppcmd_open_box(Pp_hovbox n) >] -let tb () = [< 'Ppcmd_open_box Pp_tbox >] -let close () = [< 'Ppcmd_close_box >] -let tclose () = [< 'Ppcmd_close_tbox >] - -let (++) = Stream.iapp - -let rec eval_ppcmds l = - let rec aux l = - try - let a = match Stream.next l with - | Ppcmd_box (b,s) -> Ppcmd_box (b,eval_ppcmds s) - | a -> a in - let rest = aux l in - a :: rest - with Stream.Failure -> [] in - Stream.of_list (aux l) - -(* In new syntax only double quote char is escaped by repeating it *) -let rec escape_string s = - let rec escape_at s i = - if i<0 then s - else if s.[i] == '"' then - let s' = String.sub s 0 i^"\""^String.sub s i (String.length s - i) in - escape_at s' (i-1) - else escape_at s (i-1) in - escape_at s (String.length s - 1) - -let qstring s = str ("\""^escape_string s^"\"") -let qs = qstring -let quote s = h 0 (str "\"" ++ s ++ str "\"") - -let rec xmlescape ppcmd = - let rec escape what withwhat (len, str) = - try - let pos = String.index str what in - let (tlen, tail) = - escape what withwhat ((len - pos - 1), - (String.sub str (pos + 1) (len - pos - 1))) - in - (pos + tlen + String.length withwhat, String.sub str 0 pos ^ withwhat ^ tail) - with Not_found -> (len, str) - in - match ppcmd with - | Ppcmd_print (len, str) -> - Ppcmd_print (escape '"' """ - (escape '<' "<" (escape '&' "&" (len, str)))) - (* In XML we always print whole content so we can npeek the whole stream *) - | Ppcmd_box (x, str) -> Ppcmd_box (x, Stream.of_list - (List.map xmlescape (Stream.npeek max_int str))) - | x -> x - - -(* This flag tells if the last printed comment ends with a newline, to - avoid empty lines *) -let com_eol = ref false - -let com_brk ft = com_eol := false -let com_if ft f = - if !com_eol then (com_eol := false; Format.pp_force_newline ft ()) - else Lazy.force f - -let rec pr_com ft s = - let (s1,os) = - try - let n = String.index s '\n' in - String.sub s 0 n, Some (String.sub s (n+1) (String.length s - n - 1)) - with Not_found -> s,None in - com_if ft (Lazy.lazy_from_val()); -(* let s1 = - if String.length s1 <> 0 && s1.[0] = ' ' then - (Format.pp_print_space ft (); String.sub s1 1 (String.length s1 - 1)) - else s1 in*) - Format.pp_print_as ft (utf8_length s1) s1; - match os with - Some s2 -> - if String.length s2 = 0 then (com_eol := true) - else - (Format.pp_force_newline ft (); pr_com ft s2) - | None -> () - -(* pretty printing functions *) -let pp_dirs ft = - let pp_open_box = function - | Pp_hbox n -> Format.pp_open_hbox ft () - | Pp_vbox n -> Format.pp_open_vbox ft n - | Pp_hvbox n -> Format.pp_open_hvbox ft n - | Pp_hovbox n -> Format.pp_open_hovbox ft n - | Pp_tbox -> Format.pp_open_tbox ft () - in - let rec pp_cmd = function - | Ppcmd_print(n,s) -> - com_if ft (Lazy.lazy_from_val()); Format.pp_print_as ft n s - | Ppcmd_box(bty,ss) -> (* Prevent evaluation of the stream! *) - com_if ft (Lazy.lazy_from_val()); - pp_open_box bty ; - if not (Format.over_max_boxes ()) then Stream.iter pp_cmd ss; - Format.pp_close_box ft () - | Ppcmd_open_box bty -> com_if ft (Lazy.lazy_from_val()); pp_open_box bty - | Ppcmd_close_box -> Format.pp_close_box ft () - | Ppcmd_close_tbox -> Format.pp_close_tbox ft () - | Ppcmd_white_space n -> - com_if ft (Lazy.lazy_from_fun (fun()->Format.pp_print_break ft n 0)) - | Ppcmd_print_break(m,n) -> - com_if ft (Lazy.lazy_from_fun(fun()->Format.pp_print_break ft m n)) - | Ppcmd_set_tab -> Format.pp_set_tab ft () - | Ppcmd_print_tbreak(m,n) -> - com_if ft (Lazy.lazy_from_fun(fun()->Format.pp_print_tbreak ft m n)) - | Ppcmd_force_newline -> - com_brk ft; Format.pp_force_newline ft () - | Ppcmd_print_if_broken -> - com_if ft (Lazy.lazy_from_fun(fun()->Format.pp_print_if_newline ft ())) - | Ppcmd_comment i -> - let coms = split_com [] [] i !comments in -(* Format.pp_open_hvbox ft 0;*) - List.iter (pr_com ft) coms(*; - Format.pp_close_box ft ()*) - in - let pp_dir = function - | Ppdir_ppcmds cmdstream -> Stream.iter pp_cmd cmdstream - | Ppdir_print_newline -> - com_brk ft; Format.pp_print_newline ft () - | Ppdir_print_flush -> Format.pp_print_flush ft () - in - fun dirstream -> - try - Stream.iter pp_dir dirstream; com_brk ft - with - | reraise -> Format.pp_print_flush ft () ; raise reraise - - -(* pretty print on stdout and stderr *) - -(* Special chars for emacs, to detect warnings inside goal output *) -let emacs_quote_start = String.make 1 (Char.chr 254) -let emacs_quote_end = String.make 1 (Char.chr 255) - -let emacs_quote strm = - if !print_emacs then - [< str emacs_quote_start; hov 0 strm; str emacs_quote_end >] - else hov 0 strm - -let warnbody strm = emacs_quote (str "Warning: " ++ strm) - -(* pretty printing functions WITHOUT FLUSH *) -let pp_with ft strm = - pp_dirs ft [< 'Ppdir_ppcmds strm >] - -let ppnl_with ft strm = - pp_dirs ft [< 'Ppdir_ppcmds [< strm ; 'Ppcmd_force_newline >] >] - -let default_warn_with ft strm = ppnl_with ft (warnbody strm) - -let pp_warn_with = ref default_warn_with - -let set_warning_function pp_warn = pp_warn_with := pp_warn - -let warn_with ft strm = !pp_warn_with ft strm - -let warning_with ft string = warn_with ft (str string) - -let pp_flush_with ft = Format.pp_print_flush ft - -(* pretty printing functions WITH FLUSH *) -let msg_with ft strm = - pp_dirs ft [< 'Ppdir_ppcmds strm ; 'Ppdir_print_flush >] - -let msgnl_with ft strm = - pp_dirs ft [< 'Ppdir_ppcmds strm ; 'Ppdir_print_newline >] - -let msg_warning_with ft strm = - msgnl_with ft (warnbody strm) - -(* pretty printing functions WITHOUT FLUSH *) -let pp x = pp_with !std_ft x -let ppnl x = ppnl_with !std_ft x -let pperr x = pp_with !err_ft x -let pperrnl x = ppnl_with !err_ft x -let message s = ppnl (str s) -let warning x = warning_with !err_ft x -let warn x = warn_with !err_ft x -let pp_flush x = Format.pp_print_flush !std_ft x -let flush_all() = flush stderr; flush stdout; pp_flush() - -(* pretty printing functions WITH FLUSH *) -let msg x = msg_with !std_ft x -let msgnl x = msgnl_with !std_ft x -let msgerr x = msg_with !err_ft x -let msgerrnl x = msgnl_with !err_ft x -let msg_warning x = msg_warning_with !err_ft x -let msg_warn x = msg_warning (str x) - -(* Same specific display in emacs as warning, but without the "Warning:" *) -let msg_debug x = msgnl (emacs_quote x) - -let string_of_ppcmds c = - msg_with Format.str_formatter c; - Format.flush_str_formatter () |