runtime/jslib.js

   1 // Js_of_ocaml library
   2 // http://www.ocsigen.org/js_of_ocaml/
   3 // Copyright (C) 2010 Jérôme Vouillon
   4 // Laboratoire PPS - CNRS Université Paris Diderot
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU Lesser General Public License as published by
   8 // the Free Software Foundation, with linking exception;
   9 // either version 2.1 of the License, or (at your option) any later version.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 ///////////// Jslib
  21
  22 //Provides: caml_js_pure_expr const
  23 function caml_js_pure_expr (f) { return f(); }
  24
  25 //Provides: caml_js_set
  26 function caml_js_set(o,f,v) { o[f]=v; }
  27 //Provides: caml_js_get mutable
  28 function caml_js_get(o,f) { return o[f]; }
  29
  30 //Provides: caml_js_instanceof
  31 function caml_js_instanceof(o,c) { return o instanceof c; }
  32
  33 //Provides: caml_js_typeof
  34 function caml_js_typeof(o) { return typeof o; }
  35
  36 //Provides: caml_js_on_ie const
  37 function caml_js_on_ie () {
  38   var ua = window.navigator?window.navigator.userAgent:"";
  39   return ua.indexOf("MSIE") != -1 && ua.indexOf("Opera") != 0;
  40 }
  41
  42 //Provides: caml_js_html_escape const
  43 var caml_js_regexps = { amp:/&/g, lt:/</g, quot:/\"/g, all:/[&<\"]/ };
  44 function caml_js_html_escape (s) {
  45   if (!caml_js_regexps.all.test(s)) return s;
  46   return s.replace(caml_js_regexps.amp, "&amp;")
  47           .replace(caml_js_regexps.lt, "&lt;")
  48           .replace(caml_js_regexps.quot, "&quot;");
  49 }
  50
  51 /////////// Debugging console
  52 //Provides: caml_js_get_console const
  53 function caml_js_get_console () {
  54   var c = window.console?window.console:{};
  55   var m = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
  56            "trace", "group", "groupCollapsed", "groupEnd", "time", "timeEnd"];
  57   function f () {}
  58   for (var i = 0; i < m.length; i++) if (!c[m[i]]) c[m[i]]=f;
  59   return c;
  60 }