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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 fb2a0e76dcef
children e6bc6bbd7a32
line wrap: on
line source
datatype rlist = Nil | Cons of {Data : source string,
                                NewData : source string,
                                Tail : source rlist}

fun showString ss =
    s <- signal ss;
    return <xml>{[s]}</xml>

fun show rls =
    v <- signal rls;
    show' v

and show' rl =
    case rl of
        Nil => return <xml/>
      | Cons {Data = ss, NewData = ss', Tail = rls} => return <xml>
        <dyn signal={showString ss}/>
        <button value="Change to:" onclick={s <- get ss'; set ss s}/>
        <ctextbox source={ss'}/><br/>
        <dyn signal={show rls}/>
      </xml>

fun main () =
    head <- source Nil;
    tailP <- source head;
    data <- source "";

    let
        fun add () =
            data <- get data;
            data <- source data;
            ndata <- source "";
            tail <- get tailP;
            tail' <- source Nil;

            let
                val cons = Cons {Data = data, NewData = ndata, Tail = tail'}
            in
                set tail cons;
                set tailP tail';

                head' <- get head;
                case head' of
                    Nil => set head cons
                  | _ => return ()
            end
    in
        return <xml><body>
          <ctextbox source={data}/> <button value="Add" onclick={add ()}/><br/>
          <br/>

          <dyn signal={show head}/>
        </body></xml>
    end