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cut.mll
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(***********************************************************************)
(* *)
(* HEVEA *)
(* *)
(* Luc Maranget, projet PARA, INRIA Rocquencourt *)
(* *)
(* Copyright 1998 Institut National de Recherche en Informatique et *)
(* Automatique. Distributed only by permission. *)
(* *)
(***********************************************************************)
{
open Printf
type toc_style = Normal | Both | Special
exception Error of string
module type Config = sig
val verbose : int
val name_in : string
val name_out : string
val toc_style : toc_style
val svg_arrows: bool
val cross_links : bool
val small_length : int
end
module Make (Config : Config) =
struct
open Config
open Lexing
open MyStack
module Out = CutOut.Make(Config)
let count = ref 0
let dir =
let dir = Filename.dirname name_out in
if dir = "." then
None
else
Some dir
and base =
let base = Filename.basename name_in in
try Filename.chop_extension base
with Invalid_argument _ -> base
let changed_t = Hashtbl.create 17
let record_changed oldname newname =
try
let _ = Hashtbl.find changed_t oldname in
Hashtbl.replace changed_t oldname newname
with Not_found ->
Hashtbl.add changed_t oldname newname
let check_changed name =
try Hashtbl.find changed_t name
with Not_found -> name
let real_name name =
let name = check_changed name in
match dir with
| None -> name
| Some dir -> Filename.concat dir name
let real_open_out name = open_out (real_name name)
let some_links = ref false
let env = Hashtbl.create 17
let add_env key v =
if verbose > 0 then
eprintf "add_env '%s' -> '%s'\n" key v ;
Hashtbl.add env key v
let replace_env key v =
if verbose > 0 then
eprintf "replace_env '%s' -> '%s'\n" key v ;
Hashtbl.replace env key v
let imgsrc img alt = sprintf "<img src=\"%s\" alt=\"%s\">" img alt
let () =
let ext = if Config.svg_arrows then "svg" else "gif" in
let add_ext f = sprintf "%s.%s" f ext in
add_env "UPTXT" (imgsrc (add_ext "contents_motif") "Up") ;
add_env "PREVTXT" (imgsrc (add_ext "previous_motif") "Previous") ;
add_env "NEXTTXT" (imgsrc (add_ext "next_motif") "Next") ;
()
let get_env key = try Hashtbl.find env key with Not_found ->
eprintf "Key '%s' not found\n" key ;
assert false
let get_env_not_found key = Hashtbl.find env key
(* Accumulate all META, link and similar tags that appear in the preamble
in order to output them in the preamble of every generated page. *)
let header_buff = Out.create_buff "header-buf"
let style_buff = Out.create_buff "style-buf"
let common_headers = ref ""
and link_style = ref ""
let adjoin_to_header s = Out.put header_buff s
and adjoin_to_header_char c = Out.put_char header_buff c
let finalize_header () =
if not (Out.is_empty style_buff) then begin
let css_name = sprintf "%s.css" base in
link_style :=
sprintf
"<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n"
css_name ;
adjoin_to_header !link_style ;
let chan = real_open_out css_name in
Out.to_chan chan style_buff ;
close_out chan
end ;
common_headers := Out.to_string header_buff
let html_buff = Out.create_buff "html-buf"
let html_head = ref ""
and html_foot = ref ""
and html_prefix = ref ""
let phase = ref (-1)
;;
let body = ref "<body>"
and doctype = ref ""
and html = ref "<html>"
;;
let new_filename _from =
incr count ;
sprintf "%s%03d.html" base !count
let out = ref (Out.create_null ())
and out_prefix = ref (Out.create_null ())
and outname = ref ""
and lastclosed = ref ""
and otheroutname = ref ""
and flowname_stack = (MyStack.create "flowname" : (string * bool) MyStack.t)
and flow_stack = (MyStack.create "flow" : Out.t MyStack.t)
;;
let toc = ref !out
and tocname = ref !outname
and otherout = ref !out
;;
let close_loc _ctx _name out = Out.close out
let dont_change = ref ""
let change_name oldname name =
if !phase <= 0 && oldname <> !dont_change then begin
if verbose > 0 then
eprintf "Change '%s' into '%s'\n" oldname name ;
record_changed oldname name ;
end
let start_phase () =
incr phase ;
if verbose > 0 then
eprintf "Starting phase number: %d\n" !phase ;
let base_out = Filename.basename name_out in
dont_change := base_out ;
outname := base_out ;
tocname := base_out ;
otheroutname := "" ;
count := 0 ;
if !phase > 0 then begin
out := Out.create_chan (real_name base_out)
end ;
toc := !out
;;
let openlist out =
(* eprintf "OPEN LIST: %s\n" (Out.get_name out) ; *)
Out.put out "<ul>\n"
and closelist out =
(* eprintf "CLOSE LIST: %s\n" (Out.get_name out) ; *)
Out.put out "</li></ul>\n"
and itemref fst_item filename s out =
let filename = check_changed filename in
if not fst_item then Out.put out "</li>" ;
Out.put out "<li>" ;
Out.put out "<a href=\"" ;
Out.put out filename ;
Out.put out "\">" ;
Out.put out s ;
Out.put out "</a>\n"
and itemanchor fst_item filename label s out =
let filename = check_changed filename in
if not fst_item then Out.put out "</li>" ;
Out.put out "<li>" ;
Out.put out "<a href=\"" ;
Out.put out filename ;
Out.put_char out '#' ;
Url.encode_fragment
(fun c -> Out.put_char out c)
(fun s -> Out.put out s)
label ;
Out.put out "\">" ;
Out.put out s ;
Out.put out "</a>\n"
;;
let delayed_anchor = ref false
and prev_anchor = ref None
let do_putanchor label out =
Out.put out "<a id=\"" ;
Out.put out label ;
Out.put out "\"></a>"
;;
let putanchor label out =
if !delayed_anchor then
prev_anchor := Some (label, out)
else
do_putanchor label out
let putlink out name txt =
let name = check_changed name in
Out.put out "<a href=\"" ;
Out.put out name ;
Out.put out "\">" ;
Out.put out txt ;
Out.put out "</a>\n"
;;
let link_buff = Out.create_buff "link-buf"
let old_putlinks name =
let links_there = ref false in
if verbose > 0 then
eprintf "putlinks: %s\n" name ;
begin try
putlink link_buff (Thread.prev name) (get_env "PREVTXT") ;
links_there := true
with Not_found ->
if verbose > 0 then
eprintf "No prev link for %s\n" name
end ;
begin try
putlink link_buff (Thread.up name) (get_env "UPTXT") ;
links_there := true
with Not_found -> () end ;
begin try
putlink link_buff (Thread.next name) (get_env "NEXTTXT") ;
links_there := true
with Not_found -> () end ;
if !links_there then
Some (Out.to_string link_buff)
else
None
let get_linkvar key = try get_env_not_found key with Not_found -> "VAR"
module SV =
SubstVar.Make
(struct
let arg_buff = Out.create_buff "arg-buff"
let put = Out.put arg_buff
let put_char = Out.put_char arg_buff
let to_string () = Out.to_string arg_buff
end)
let putlinks name =
let substlink key get =
try
let url = (check_changed (get name)) in
let macro = get_linkvar key in
SV.subst macro url ;
true
with Not_found -> false in
try
let linksmacro = get_env_not_found "LINKS" in
let b1 = substlink "PREVLINK" Thread.prev in
let b2 = substlink "UPLINK" Thread.up in
let b3 = substlink "NEXTLINK" Thread.next in
if b1 || b2 || b3 then begin
let arg = SV.to_string () in
SV.subst linksmacro arg ;
Some (SV.to_string ())
end else None
with Not_found -> old_putlinks name
let putlinks_start out outname =
if cross_links then
match putlinks outname with
| Some s ->
some_links := true ;
Out.put out s ;
Out.put out "<hr>\n"
| None -> ()
let putlinks_end out outname =
if cross_links then
match putlinks outname with
| Some s ->
some_links := true ;
Out.put out "<hr>\n" ;
Out.put out s
| None -> ()
type file_opt = { with_footer : bool ; with_links : bool ; }
let std_file_opt = { with_footer=true; with_links=true ; }
let openhtml opt title out outname =
Out.put out !doctype ; Out.put_char out '\n' ;
Out.put out !html ; Out.put_char out '\n' ;
Out.put out "<head>" ;
Out.put out !common_headers;
Out.put out "<title>" ;
let title =
let title = !html_prefix^title in
try Tagout.tagout title
with Tagout.Error ->
Location.print_pos () ;
eprintf "Warning, cannot erase tags from '%s'\n%!" title ;
title in
Out.put out title ;
Out.put out "</title>\n" ;
Out.put out "</head>\n" ;
Out.put out !body;
Out.put out "\n" ;
if opt.with_links then putlinks_start out outname ;
if opt.with_footer then Out.put out !html_head
and closehtml opt name out =
if opt.with_footer then Out.put out !html_foot ;
if opt.with_links then putlinks_end out name ;
Out.put out "</body>\n" ;
Out.put out "</html>\n" ;
close_loc "closehtml" name out
;;
let put s = Out.put !out s
and put_char c = Out.put_char !out c
;;
let cur_level = ref (Section.value "DOCUMENT")
and chapter = ref (Section.value "CHAPTER")
and depth = ref 2
;;
(* Open all lists in toc from chapter to sec, with sec > chapter *)
let rec do_open l1 l2 =
if l1 < l2 then begin
begin match toc_style with
| Both -> openlist !toc ; openlist !out_prefix
| Special -> openlist !out_prefix
| Normal -> openlist !toc
end ;
do_open (l1+1) l2
end
;;
(* close from l1 down to l2 *)
let rec do_close l1 l2 =
if l1 > l2 then begin
begin match toc_style with
| Both -> closelist !toc ; closelist !out_prefix
| Special -> closelist !out_prefix
| Normal -> closelist !toc
end ;
do_close (l1-1) l2
end else
cur_level := l1
;;
let anchor = ref 0
;;
let open_section sec name a =
if !phase > 0 then begin
let fst_item =
if !cur_level > sec then begin
do_close !cur_level sec ;
false
end else if !cur_level < sec then begin
do_open !cur_level sec ;
true
end else false in
let label =
match a with
| Some label -> label
| None ->
incr anchor ;
"toc"^string_of_int !anchor in
begin match toc_style with
| Normal ->
itemanchor fst_item !outname label name !toc ;
| Both ->
itemanchor fst_item !outname label name !toc ;
itemanchor fst_item !outname label name !out_prefix
| Special ->
itemanchor fst_item !outname label name !out_prefix
end ;
begin match a with
| Some _ -> ()
| None -> putanchor label !out
end ;
cur_level := sec
end else
cur_level := sec
and close_section sec =
if !phase > 0 then do_close !cur_level sec
else
cur_level := sec
;;
let close_chapter () =
if verbose > 0 then
eprintf "Close chapter out=%s toc=%s\n" !outname !tocname ;
if !phase > 0 then begin
if !outname <> !tocname then begin
closehtml std_file_opt !outname !out ;
let doout out what =
if false then begin
eprintf "DEBUG:\n" ;
Out.debug stderr what ;
eprintf "\n"
end ;
Out.to_chan out what in
begin match toc_style with
| Both|Special ->
let real_out = real_open_out !outname in
(* Those hacking try with avoid failure for cuttingsection = document *)
begin try
doout real_out !out_prefix
with Misc.Fatal _ -> () end ;
begin try
doout real_out !out ;
with Misc.Fatal _ -> () end ;
close_out real_out
| Normal -> ()
end ;
end ;
out := !toc
end else begin
lastclosed := !outname ;
outname := !tocname
end
and open_chapter fst_item name =
outname := new_filename ("open_chapter <<"^name^">>") ;
if verbose > 0 then
eprintf
"Open chapter out=%s toc=%s cur_level=%d\n"
!outname !tocname !cur_level ;
if !phase > 0 then begin
begin match toc_style with
| Both|Special ->
out_prefix := Out.create_buff (!outname ^ "-prefix") ;
out := !out_prefix ;
openhtml std_file_opt name !out_prefix !outname
| Normal ->
out := Out.create_chan (real_name !outname) ;
openhtml std_file_opt name !out !outname
end ;
itemref fst_item !outname name !toc ;
cur_level := !chapter
end else begin
if verbose > 0 then
eprintf "link prev=%s next=%s\n" !lastclosed !outname ;
Thread.setup !outname !tocname ;
Thread.setprevnext !lastclosed !outname ;
cur_level := !chapter
end
;;
let setlink set target =
if !phase = 0 && target <> "" then
set !outname target
let open_notes_pred sec_notes =
(sec_notes <> !chapter) ||
(!cur_level < sec_notes)
let open_notes sticky sec_notes =
if verbose > 0 && !phase > 0 then
eprintf "Notes flushed as %s (current cut is %s, current level is %s)\n"
(Section.pretty sec_notes)
(Section.pretty !chapter)
(Section.pretty !cur_level) ;
if
not sticky && open_notes_pred sec_notes
then begin
otheroutname := !outname ;
outname := new_filename "open_notes" ;
if !phase > 0 then begin
otherout := !out ;
out := Out.create_chan (real_name !outname) ;
Out.put !out !doctype ; Out.put_char !out '\n' ;
Out.put !out !html ; Out.put_char !out '\n' ;
Out.put !out "<head><title>Notes</title>\n" ;
Out.put !out !common_headers ;
Out.put !out "</head>\n" ;
Out.put !out !body ;
Out.put !out "\n"
end
end else
otheroutname := ""
and close_notes () =
if !otheroutname <> "" then begin
Out.put !out "\n</body></html>\n" ;
close_loc "notes" !outname !out ;
outname := !otheroutname ;
out := !otherout ;
otheroutname := ""
end
;;
let toc_buf = Out.create_buff "toc-buf"
and arg_buf = Out.create_buff "arg-buf"
;;
let stack = MyStack.create "main"
;;
let save_state newchapter newdepth =
if verbose > 0 then
eprintf "New state: %d\n" newchapter ;
push stack
(!outname, MyStack.save flowname_stack, MyStack.save flow_stack,
!chapter,!depth,!toc,!tocname,!cur_level,!lastclosed,!out_prefix) ;
chapter := newchapter ;
depth := newdepth ;
tocname := !outname ;
lastclosed := "" ;
toc := !out
;;
let restore_state () =
if verbose > 0 then eprintf "Restore\n%!" ;
let
oldoutname, oldflowname, oldflow,
oldchapter,olddepth,oldtoc,oldtocname,
oldlevel,_oldlastclosed,oldprefix = pop stack in
outname := oldoutname ;
MyStack.restore flowname_stack oldflowname ;
MyStack.restore flow_stack oldflow ;
chapter := oldchapter ;
depth := olddepth ;
toc := oldtoc ;
tocname := oldtocname ;
lastclosed := !lastclosed ;
cur_level := oldlevel ;
out_prefix := oldprefix
;;
let hevea_footer = ref false
let hevea_footer_buff = Out.create_buff "hevea-footer-buf"
let close_top lxm =
Out.put !toc !html_foot ;
putlinks_end !toc !tocname ;
if !hevea_footer then begin
Out.put !out "<!--FOOTER-->\n" ;
Out.copy hevea_footer_buff !out
end ;
Out.put !toc lxm ;
if !tocname = "" then
Out.flush !toc
else
close_loc "top" !tocname !toc
;;
let open_toc () = if !phase > 0 then openlist !toc
and close_toc () = if !phase > 0 then closelist !toc
;;
let close_all () =
if !cur_level > !chapter then begin
close_section !chapter ;
close_chapter () ;
close_toc ()
end else if !cur_level = !chapter then begin
close_chapter () ;
close_toc ()
end ;
cur_level := (Section.value "DOCUMENT")
let openflow with_footer title =
let new_outname = new_filename "openflow" in
push flowname_stack (!outname,with_footer) ;
outname := new_outname ;
if !phase > 0 then begin
push flow_stack !out ;
out := Out.create_chan (real_name !outname) ;
let opt = { with_footer=with_footer; with_links=false; } in
openhtml opt title !out !outname
end
and closeflow () =
let prev_out, with_footer = pop flowname_stack in
if !phase > 0 then begin
let opt = { with_links=false; with_footer=with_footer; } in
closehtml opt !outname !out;
out := pop flow_stack
end ;
outname := prev_out
}
let alpha = ['a'-'z' 'A'-'Z']
let secname = alpha+
let blank = [' ''\t''\n']
let tag = ['a'-'z''A'-'Z''0'-'9']+
let anchor = ['a'-'z''A'-'Z''0'-'9']+
let class_name = ['a'-'z''A'-'Z''0'-'9''-']+
let attr_name = ['a'-'z''A'-'Z']['a'-'z''A'-'Z''-''0'-'9'':']*
rule main = parse
| "<!--HEVEA" [^'>']* "-->" '\n'?
{let lxm = lexeme lexbuf in
if !phase > 0 then begin
put lxm ;
put ("<!--HACHA command line is: ") ;
for i = 0 to Array.length Sys.argv - 1 do
put Sys.argv.(i) ;
put_char ' '
done ;
put "-->\n"
end ;
main lexbuf}
| "<!--" "FLOW" ' '+
{let title,b = flowline lexbuf in
openflow b title ;
main lexbuf}
| "<!--" "SETENV" ' ' +
{ let pairs = getargs lexbuf in
if !phase = 0 then begin
List.iter
(fun (name, v) -> replace_env name v)
pairs
end ;
main lexbuf }
| "<!--" "LINKS" ' '+
{let links = getargs lexbuf in
List.iter
(fun (name,v) -> match name with
| "UP" -> setlink Thread.setup v
| "PREV" -> setlink Thread.setprev v
| "NEXT" -> setlink Thread.setnext v
| _ -> ())
links ;
main lexbuf}
| "<!--" "PREFIX" ' '+
{let l = getargs lexbuf in
if !phase = 0 then begin
match l with
| [] -> ()
| (_,v)::_ -> html_prefix := v
end ;
main lexbuf}
| "<!--" "END" ' '+ "FLOW" ' '* "-->" '\n'?
{closeflow () ;
main lexbuf}
| "<!--" "NAME" ' '+
{let name = tocline lexbuf in
change_name !outname name ;
main lexbuf}
(* Useful ? *)
(*
| "<!--SEC ANCHOR" ' '* "-->"
{really_putanchor () ; main lexbuf }
*)
| "<!--" ("TOC"|"toc") blank+ (secname as arg) blank+
("id=" ((anchor as a)|('"' ([^'"']+ as a) '"')) blank+)? (* '"' *)
{let sn =
if String.uppercase_ascii arg = "NOW" then !chapter
else Section.value arg in
let name = tocline lexbuf in
if verbose > 1 then begin
eprintf "TOC arg=%s, name=%s, anchor=%s\n" arg name
(match a with Some x -> x | None -> "-")
end;
if sn < !chapter then begin
if !cur_level >= !chapter then begin
close_section (!chapter) ;
close_chapter () ;
close_toc ()
end ;
cur_level := sn
end else if sn = !chapter then begin
let fst_item =
if !cur_level < sn then begin
open_toc () ;
true
end else begin
close_section !chapter ;
close_chapter () ;
false
end in
open_chapter fst_item name
end else if sn <= !chapter + !depth then begin (* sn > !chapter *)
if !cur_level < !chapter then begin
open_toc () ;
open_chapter true ""
end ;
close_section sn ;
open_section sn name a
end ;
main lexbuf}
| "<!--CUT STYLE" ' '+ (alpha+ as style) ' '* "-->"
{
Section.set_style style ;
main lexbuf
}
| "<!--CUT DEF" ' '+ (secname as name) ' '* (['0'-'9']+ as i_opt)?
{let chapter = Section.value (String.uppercase_ascii name) in
let depth = match i_opt with
| None -> !depth
| Some s -> int_of_string s in
skip_endcom lexbuf ;
save_state chapter depth ;
cur_level := Section.value "DOCUMENT" ;
main lexbuf}
| "<!--SEC END" ' '* "-->" blank*
{if !phase > 0 then begin
put_char '\n' ;
match toc_style with
| Both|Special when !out == !out_prefix ->
out := Out.create_buff "out-buf"
| _ -> ()
end ;
main lexbuf}
| "<!--CUT END" ' '* "-->" '\n'?
{close_all () ;
restore_state () ;
main lexbuf}
| "<!--BEGIN" ' '+ "NOTES" ' '+ (secname as sec_notes)
{skip_endcom lexbuf ;
open_notes false (Section.value sec_notes) ;
main lexbuf}
| "<!--BEGIN" ' '+ "STICKYNOTES" ' '+ (secname as sec_notes)
{skip_endcom lexbuf ;
open_notes true (Section.value sec_notes) ;
main lexbuf}
| "<!--END" ' '+ "NOTES" ' '* "-->" '\n'?
{if !otheroutname <> "" then
close_notes ();
main lexbuf}
| "<a" ' '+
{if !phase > 0 then put (lexeme lexbuf) ;
aargs lexbuf}
| "<!--HTML" ' '* "HEAD" ' '* "-->" '\n' ?
{let head = save_html lexbuf in
if !phase = 0 then
html_head := head
else
Out.put !out head;
main lexbuf}
| "<!--HTML" ' '* "FOOT" ' '* "-->" '\n' ?
{let foot = save_html lexbuf in
if !phase = 0 then begin
html_foot := foot
end ;
main lexbuf}
| "<!--FOOTER-->" '\n'?
{if !phase = 0 then hevea_footer := true ;
close_all () ;
footer lexbuf}
| "<!DOCTYPE" [^'>']* '>'
{let lxm = lexeme lexbuf in
if !phase = 0 then
doctype := lxm
else
Out.put !out lxm;
main lexbuf}
| "<html" [^'>']* '>'
{let lxm = lexeme lexbuf in
if !phase = 0 then
html := lxm
else
Out.put !out lxm;
main lexbuf}
| "<body" [^'>']* '>'
{let lxm = lexeme lexbuf in
if !phase = 0 then
body := lxm
else begin
Out.put !out lxm ;
putlinks_start !out !outname
end ;
main lexbuf}
| "<head" [^'>']* '>'
{put (lexeme lexbuf);
if !phase = 0 then begin
if verbose > 0 then eprintf "Collect header\n" ;
collect_header lexbuf
end else begin
repeat_header lexbuf
end ;
main lexbuf}
| "</body>" _ *
{let lxm = lexeme lexbuf in
close_all () ;
if !phase > 0 then begin
close_top lxm
end}
| '<' tag blank+ as lxm
{ if !phase > 0 then put lxm ;
intag lexbuf ;
main lexbuf }
| _ as lxm
{if !phase > 0 then put_char lxm ;
main lexbuf}
| eof
{raise (Error ("No </body> tag in input file"))}
and save_html = parse
| "<!--END" ' '* ['A'-'Z']+ ' '* "-->" '\n'?
{let s = Out.to_string html_buff in
if verbose > 0 then
eprintf "save_html -> '%s'\n" s;
s}
| _
{let lxm = lexeme_char lexbuf 0 in
Out.put_char html_buff lxm ;
save_html lexbuf}
| eof
{raise (Misc.Fatal ("End of file in save_html"))}
and collect_header = parse
| "</head>"
{finalize_header () ;
if verbose > 0 then begin
eprintf "Header is: '%s'\n" !common_headers
end}
| '\n'? "<title" [^'>']* '>'
{skip_title lexbuf ; collect_header lexbuf}
| "<style" blank+ "type" blank* '=' blank* '"' "text/css" '"' blank* '>'
'\n'?
{collect_style lexbuf ; collect_header lexbuf}
| _ as lxm
{adjoin_to_header_char lxm;
collect_header lexbuf}
and repeat_header = parse
| "</head>" as lxm
{put (!link_style) ; put lxm }
| "<style" blank+ "type" blank* '=' blank* '"' "text/css" '"' blank* '>'
{skip_style lexbuf ; repeat_header lexbuf}
| _ as lxm
{put_char lxm ; repeat_header lexbuf}
and collect_style = parse
| "</style>" '\n'? { () }
| _ as c
{ Out.put_char style_buff c ; collect_style lexbuf }
and skip_style = parse
| "</style>" '\n'? { () }
| _ { skip_style lexbuf }
and skip_title = parse
| "</title>" '\n'? {()}
| _ {skip_title lexbuf}
and footer = parse
"</body>" _* as lxm
{if !phase > 0 then begin
close_top lxm
end}
| _ as lxm {if !phase = 0 then begin Out.put_char hevea_footer_buff lxm end ;
footer lexbuf}
| eof {raise (Misc.Fatal ("End of file in footer (no </body> tag)"))}
and tocline = parse
"-->" '\n' ? {Out.to_string toc_buf}
| _
{Out.put_char toc_buf (lexeme_char lexbuf 0) ;
tocline lexbuf}
and flowline = parse
| "<arg title>"
{let title = arg lexbuf in
let _,b = flowline lexbuf in
title,b}
| "<arg footer>"
{let yes_no = arg lexbuf in
let b = match yes_no with "YES" -> true | _ -> false in
let title,_ = flowline lexbuf in
title,b}
| "-->" '\n'? {"",true}
| eof {raise (Misc.Fatal "Unclosed comment")}
| _ {flowline lexbuf}
and getargs = parse
| "-->" '\n'? {[]}
| "<arg" ' '*
{let name = argname lexbuf in
let r = arg lexbuf in
(name,r)::getargs lexbuf}
| eof {raise (Misc.Fatal "Unclosed comment")}
| _ {getargs lexbuf}
and argname = parse
| ['a'-'z''A'-'Z']* '>'
{let lxm = lexeme lexbuf in
String.sub lxm 0 (String.length lxm-1)}
| "" {raise (Misc.Fatal "arg title")}
and arg = parse
| "</arg>" {Out.to_string arg_buf}
| _ {Out.put_char arg_buf (Lexing.lexeme_char lexbuf 0) ; arg lexbuf}
| eof {raise (Misc.Fatal "Unclosed arg")}
and aargs = parse
| ("id"|"ID") ' '* '=' ' '*
{if !phase = 0 then begin
let name = refname lexbuf in
Cross.add name !outname
end else
put (lexeme lexbuf) ;
aargs lexbuf}
| ("href"|"HREF") ' '* '=' ' '*
{if !phase > 0 then begin
let lxm = lexeme lexbuf in
let name = refname lexbuf in
try
let newname =
if String.length name > 0 && String.get name 0 = '#' then
let frag = String.sub name 1 (String.length name-1) in
Cross.fullname check_changed !outname frag
else name in
put lxm ;
put "\"" ;
put newname ;
put "\""
with Not_found -> ()
end ;
aargs lexbuf}
| '>'
{if !phase > 0 then put_char '>' ;
main lexbuf}
| _ as c
{if !phase > 0 then put_char c ;
aargs lexbuf}
| eof
{raise (Error "Bad <A ...> tag")}
and intag = parse
| blank+ as lxm
{ if !phase > 0 then put lxm ;
intag lexbuf }
| ("id"|"ID") blank* "=" blank*
(('\'' ([^'\'']* as v) '\''
| '"' ([^'"']* as v) '"'
| ('#'?['a'-'z''A'-'Z''0'-'9''-''+''_'':''.']+ as v))) as lxm
(* '"' *)
{ if !phase = 0 then Cross.add v !outname else put lxm ;
intag lexbuf }
| attr_name ( blank* "=" blank*
('\'' ([^'\'']*) '\''
| '"' ([^'"']*) '"'
| '#'?['a'-'z''A'-'Z''0'-'9''-''+''_'':''.']+))? as lxm
(* '"' *)
{ if !phase > 0 then put lxm ;
intag lexbuf }
| '/'? '>' as lxm { if !phase > 0 then put lxm }
| "" { raise (Error "intag: attribute syntax")}
and refname = parse
| '"' ([^'"']* as name) '"'
| ''' ([^''']* as name) '''
| (['a'-'z''A'-'Z''0'-'9''.''_''-']+ as name)