Mercurial > urweb
view src/tutorial.sml @ 1739:c414850f206f
Add support for -boot flag, which allows in-tree execution of Ur/Web
The boot flag rewrites most hardcoded paths to point to the build
directory, and also forces static compilation. This is convenient
for developing Ur/Web, or if you cannot 'sudo make install' Ur/Web.
The following changes were made:
* Header files were moved to include/urweb instead of include;
this lets FFI users point their C_INCLUDE_PATH at this directory
at write <urweb/urweb.h>. For internal Ur/Web executables,
we simply pass -I$PATH/include/urweb as normal.
* Differentiate between LIB and SRCLIB; SRCLIB is Ur and JavaScript
source files, while LIB is compiled products from libtool. For
in-tree compilation these live in different places.
* No longer reference Config for paths; instead use Settings; these
settings can be changed dynamically by Compiler.enableBoot ()
(TODO: add a disableBoot function.)
* config.h is now generated directly in include/urweb/config.h,
for consistency's sake (especially since it gets installed
along with the rest of the headers!)
* All of the autotools build products got updated.
* The linkStatic field in protocols now only contains the name of the
build product, and not the absolute path.
Future users have to be careful not to reference the Settings files
to early, lest they get an old version (this was the source of two
bugs during development of this patch.)
| author | Edward Z. Yang <ezyang@mit.edu> |
|---|---|
| date | Wed, 02 May 2012 17:17:57 -0400 |
| parents | 92c929793d0f |
| children | 2d9f831d45c9 |
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(* Copyright (c) 2011, Adam Chlipala * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * - The names of contributors may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. *) structure Tutorial :> TUTORIAL = struct fun readAll inf = let fun loop acc = case TextIO.inputLine inf of NONE => Substring.full (String.concat (rev acc)) | SOME line => loop (line :: acc) in loop [] before TextIO.closeIn inf end val readAllFile = readAll o TextIO.openIn fun fixupFile (fname, title) = let val source = readAllFile "/tmp/final.html" val outf = TextIO.openOut (OS.Path.mkAbsolute {relativeTo = OS.FileSys.getDir (), path = OS.Path.joinBaseExt {base = OS.Path.base fname, ext = SOME "html"}}) val (befor, after) = Substring.position "<title>" source fun proseLoop source = let val (befor, after) = Substring.splitl (fn ch => ch <> #"&") source in if Substring.isEmpty after then TextIO.outputSubstr (outf, source) else if Substring.size after >= 4 andalso Substring.string (Substring.slice (after, 1, SOME 3)) = "lt;" then (TextIO.outputSubstr (outf, befor); TextIO.output (outf, "<"); proseLoop (Substring.slice (after, 4, NONE))) else if Substring.size after >= 4 andalso Substring.string (Substring.slice (after, 1, SOME 3)) = "gt;" then (TextIO.outputSubstr (outf, befor); TextIO.output (outf, ">"); proseLoop (Substring.slice (after, 4, NONE))) else if Substring.size after >= 5 andalso Substring.string (Substring.slice (after, 1, SOME 4)) = "amp;" then (TextIO.outputSubstr (outf, befor); TextIO.output (outf, "&"); proseLoop (Substring.slice (after, 5, NONE))) else raise Fail "Unsupported HTML escape" end fun loop source = let val (befor, after) = Substring.position "<span class=\"comment-delimiter\">(* </span><span class=\"comment\">" source in if Substring.isEmpty after then TextIO.outputSubstr (outf, source) else let val (befor', after) = Substring.position " </span><span class=\"comment-delimiter\">*)</span>" (Substring.slice (after, 64, NONE)) in if Substring.isEmpty after then TextIO.outputSubstr (outf, source) else (TextIO.outputSubstr (outf, befor); TextIO.output (outf, "</pre>"); if Substring.size befor' >= 1 andalso Substring.sub (befor', 0) = #"*" then (TextIO.output (outf, "<h2>"); proseLoop (Substring.slice (befor', 2, NONE)); TextIO.output (outf, "</h2>")) else (TextIO.output (outf, "<div class=\"prose\">"); proseLoop befor'; TextIO.output (outf, "</div>")); TextIO.output (outf, "<pre>"); loop (Substring.slice (after, 49, NONE))) end end in if Substring.isEmpty after then raise Fail ("Missing <title> for " ^ title) else (TextIO.outputSubstr (outf, befor); TextIO.output (outf, "<style type=\"text/css\">\n"); TextIO.output (outf, "<!--\n"); TextIO.output (outf, "\tdiv.prose {\n"); TextIO.output (outf, "\t\tfont-family: Arial;\n"); TextIO.output (outf, "\t\tbackground-color: #CCFFCC;\n"); TextIO.output (outf, "\t\tborder-style: solid;\n"); TextIO.output (outf, "\t\tpadding: 5px;\n"); TextIO.output (outf, "\t\tfont-size: larger;\n"); TextIO.output (outf, "\t}\n"); TextIO.output (outf, "\th2 {\n"); TextIO.output (outf, "\t\tfont-family: Arial;\n"); TextIO.output (outf, "\t\tfont-size: 20pt;\n"); TextIO.output (outf, "\t\tbackground-color: #99FF99;\n"); TextIO.output (outf, "\t\tpadding: 5px;\n"); TextIO.output (outf, "\t}\n"); TextIO.output (outf, "\ta:link {\n"); TextIO.output (outf, "\t\ttext-decoration: underline;\n"); TextIO.output (outf, "\t\tcolor: blue;\n"); TextIO.output (outf, "\t}\n"); TextIO.output (outf, "\ta:visited {\n"); TextIO.output (outf, "\t\ttext-decoration: underline;\n"); TextIO.output (outf, "\t\tcolor: red;\n"); TextIO.output (outf, "\t}\n"); TextIO.output (outf, "-->\n"); TextIO.output (outf, "</style>\n"); TextIO.output (outf, "<title>"); TextIO.output (outf, title); let val (befor, after) = Substring.position "</title>" after in if Substring.isEmpty after then raise Fail ("Missing </title> for " ^ title) else let val (befor, after) = Substring.position "<body>" after in if Substring.isEmpty after then raise Fail ("Missing <body> for " ^ title) else (TextIO.outputSubstr (outf, befor); TextIO.output (outf, "<body><h1>"); TextIO.output (outf, title); TextIO.output (outf, "</h1>"); loop (Substring.slice (after, 6, NONE))) end end; TextIO.closeOut outf) end fun doUr fname = let val inf = TextIO.openIn fname val title = case TextIO.inputLine inf of NONE => raise Fail ("No title comment at start of " ^ fname) | SOME title => title val title = String.substring (title, 3, size title - 7) val eval = TextIO.openOut "/tmp/eval.ur" val gen = TextIO.openOut "/tmp/gen.ur" fun untilEnd source = let val (befor, after) = Substring.position "(* end *)" source in if Substring.isEmpty after then (source, Substring.full "") else (befor, Substring.slice (after, 9, NONE)) end fun doDirectives (count, source) = let val safe = String.translate (fn #"<" => "<" | #"&" => "&" | #"{" => "{" | #"(" => "(" | #"\n" => "(*NL*)\n" | #" " => "(*NL*) " | ch => str ch) o Substring.string val (befor, after) = Substring.position "(* begin " source fun default () = (TextIO.outputSubstr (eval, source); TextIO.output (gen, safe source)) in if Substring.isEmpty after then default () else let val (command, after) = Substring.splitl (not o Char.isSpace) (Substring.slice (after, 9, NONE)) in if Substring.isEmpty after then default () else let val (_, rest) = Substring.position "*)" after in if Substring.isEmpty rest then default () else let val (arg, source) = untilEnd (Substring.slice (rest, 3, NONE)) val () = (TextIO.outputSubstr (eval, befor); TextIO.output (gen, safe befor)) val (count, skip) = case Substring.string command of "hide" => (TextIO.outputSubstr (eval, arg); (count, true)) | "eval" => (TextIO.output (eval, "val _eval"); TextIO.output (eval, Int.toString count); TextIO.output (eval, " = "); TextIO.outputSubstr (eval, arg); TextIO.output (eval, "\n\n"); TextIO.output (gen, safe arg); TextIO.output (gen, "== {[_eval"); TextIO.output (gen, Int.toString count); TextIO.output (gen, "]}"); (count + 1, false)) | s => raise Fail ("Unknown tutorial directive: " ^ s) in doDirectives (count, if skip then #2 (Substring.splitl Char.isSpace source) else source) end end end end in doDirectives (0, readAll inf); TextIO.closeOut gen; TextIO.output (eval, "\n\nfun main () : transaction page =\nreturn <xml><body>"); TextIO.outputSubstr (eval, readAllFile "/tmp/gen.ur"); TextIO.output (eval, "</body></xml>"); TextIO.closeOut eval; if Compiler.compile "/tmp/eval" then let val proc = Unix.execute ("/bin/sh", ["-c", "/tmp/eval.exe /main"]) val inf = Unix.textInstreamOf proc val s = readAll inf val _ = Unix.reap proc val (befor, after) = Substring.position "<sc>" s in if Substring.isEmpty after then print ("Bad output for " ^ fname ^ "! [1]\n") else let val after = Substring.slice (after, 4, NONE) val (befor, after) = Substring.position "</body>" after in if Substring.isEmpty after then print ("Bad output for " ^ fname ^ "! [2]\n") else let val outf = TextIO.openOut "/tmp/final.ur" fun eatNls source = let val (befor, after) = Substring.position "(*NL*)" source in if Substring.isEmpty after then TextIO.outputSubstr (outf, source) else (TextIO.outputSubstr (outf, befor); eatNls (Substring.slice (after, 6, NONE))) end val cmd = "emacs --eval \"(progn " ^ "(global-font-lock-mode t) " ^ "(add-to-list 'load-path \\\"" ^ !Settings.configSitelisp ^ "/\\\") " ^ "(load \\\"urweb-mode-startup\\\") " ^ "(urweb-mode) " ^ "(find-file \\\"/tmp/final2.ur\\\") " ^ "(switch-to-buffer (htmlize-buffer)) " ^ "(write-file \\\"/tmp/final.html\\\") " ^ "(kill-emacs))\"" in eatNls befor; TextIO.closeOut outf; ignore (OS.Process.system "sed -e 's/</</g;s/&/\\&/g' </tmp/final.ur >/tmp/final2.ur"); ignore (OS.Process.system cmd); fixupFile (fname, title) end end end else () end fun make dirname = let val dir = OS.FileSys.openDir dirname fun doDir () = case OS.FileSys.readDir dir of NONE => OS.FileSys.closeDir dir | SOME fname => (if OS.Path.ext fname = SOME "ur" then doUr (OS.Path.joinDirFile {dir = dirname, file = fname}) else (); doDir ()) in Settings.setProtocol "static"; doDir () end end