Update documentation

docs/html/annotated_dup.js

@@ -1,10 +1,12 @@
 var annotated_dup =
 [
     [ "fplot_core", "namespacefplot__core.html", [
+      [ "assignment(=)", "interfacefplot__core_1_1assignment_07_0a_08.html", null ],
       [ "cm_get_string_result", "interfacefplot__core_1_1cm__get__string__result.html", null ],
       [ "color", "structfplot__core_1_1color.html", "structfplot__core_1_1color" ],
       [ "colormap", "structfplot__core_1_1colormap.html", "structfplot__core_1_1colormap" ],
       [ "cool_colormap", "structfplot__core_1_1cool__colormap.html", "structfplot__core_1_1cool__colormap" ],
+      [ "custom_colormap", "structfplot__core_1_1custom__colormap.html", "structfplot__core_1_1custom__colormap" ],
       [ "delaunay_tri_2d", "structfplot__core_1_1delaunay__tri__2d.html", "structfplot__core_1_1delaunay__tri__2d" ],
       [ "delaunay_tri_surface", "structfplot__core_1_1delaunay__tri__surface.html", "structfplot__core_1_1delaunay__tri__surface" ],
       [ "earth_colormap", "structfplot__core_1_1earth__colormap.html", "structfplot__core_1_1earth__colormap" ],
@@ -15,12 +17,15 @@ var annotated_dup =
       [ "latex_terminal", "structfplot__core_1_1latex__terminal.html", "structfplot__core_1_1latex__terminal" ],
       [ "legend", "structfplot__core_1_1legend.html", "structfplot__core_1_1legend" ],
       [ "multiplot", "structfplot__core_1_1multiplot.html", "structfplot__core_1_1multiplot" ],
+      [ "operator(/=)", "interfacefplot__core_1_1operator_07_2_0a_08.html", null ],
+      [ "operator(==)", "interfacefplot__core_1_1operator_07_0a_0a_08.html", null ],
       [ "pa_get_string_result", "interfacefplot__core_1_1pa__get__string__result.html", null ],
       [ "parula_colormap", "structfplot__core_1_1parula__colormap.html", "structfplot__core_1_1parula__colormap" ],
       [ "pd_get_string_result", "interfacefplot__core_1_1pd__get__string__result.html", null ],
       [ "plot", "structfplot__core_1_1plot.html", "structfplot__core_1_1plot" ],
       [ "plot_2d", "structfplot__core_1_1plot__2d.html", "structfplot__core_1_1plot__2d" ],
       [ "plot_3d", "structfplot__core_1_1plot__3d.html", "structfplot__core_1_1plot__3d" ],
+      [ "plot_arrow", "structfplot__core_1_1plot__arrow.html", "structfplot__core_1_1plot__arrow" ],
       [ "plot_axis", "structfplot__core_1_1plot__axis.html", "structfplot__core_1_1plot__axis" ],
       [ "plot_bar", "structfplot__core_1_1plot__bar.html", "structfplot__core_1_1plot__bar" ],
       [ "plot_data", "structfplot__core_1_1plot__data.html", "structfplot__core_1_1plot__data" ],
@@ -55,9 +60,5 @@ var annotated_dup =
       [ "y2_axis", "structfplot__core_1_1y2__axis.html", "structfplot__core_1_1y2__axis" ],
       [ "y_axis", "structfplot__core_1_1y__axis.html", "structfplot__core_1_1y__axis" ],
       [ "z_axis", "structfplot__core_1_1z__axis.html", "structfplot__core_1_1z__axis" ]
-    ] ],
-    [ "fplot_string_builder", "namespacefplot__string__builder.html", [
-      [ "string_builder", "structfplot__string__builder_1_1string__builder.html", "structfplot__string__builder_1_1string__builder" ],
-      [ "to_string", "interfacefplot__string__builder_1_1to__string.html", null ]
     ] ]
 ];

docs/html/clipboard.js

@@ -0,0 +1,61 @@
+/**
+
+The code below is based on the Doxygen Awesome project, see
+https://github.com/jothepro/doxygen-awesome-css
+
+MIT License
+
+Copyright (c) 2021 - 2022 jothepro
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+let clipboard_title = "Copy to clipboard"
+let clipboard_icon = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><path d="M0 0h24v24H0V0z" fill="none"/><path d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>`
+let clipboard_successIcon = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><path d="M0 0h24v24H0V0z" fill="none"/><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg>`
+let clipboard_successDuration = 1000
+
+$(function() {
+  if(navigator.clipboard) {
+    const fragments = document.getElementsByClassName("fragment")
+    for(const fragment of fragments) {
+      const clipboard_div = document.createElement("div")
+      clipboard_div.classList.add("clipboard")
+      clipboard_div.innerHTML = clipboard_icon
+      clipboard_div.title = clipboard_title
+      $(clipboard_div).click(function() {
+        const content = this.parentNode.cloneNode(true)
+        // filter out line number and folded fragments from file listings
+        content.querySelectorAll(".lineno, .ttc, .foldclosed").forEach((node) => { node.remove() })
+        let text = content.textContent
+        // remove trailing newlines and trailing spaces from empty lines
+        text = text.replace(/^\s*\n/gm,'\n').replace(/\n*$/,'')
+        navigator.clipboard.writeText(text);
+        this.classList.add("success")
+        this.innerHTML = clipboard_successIcon
+        window.setTimeout(() => { // switch back to normal icon after timeout
+            this.classList.remove("success")
+            this.innerHTML = clipboard_icon
+        }, clipboard_successDuration);
+      })
+      fragment.insertBefore(clipboard_div, fragment.firstChild)
+    }
+  }
+})

docs/html/cookie.js

@@ -0,0 +1,58 @@
+/*!
+ Cookie helper functions
+ Copyright (c) 2023 Dimitri van Heesch
+ Released under MIT license.
+*/
+let Cookie = {
+  cookie_namespace: 'doxygen_',
+
+  readSetting(cookie,defVal) {
+    if (window.chrome) {
+      const val = localStorage.getItem(this.cookie_namespace+cookie) ||
+                  sessionStorage.getItem(this.cookie_namespace+cookie);
+      if (val) return val;
+    } else {
+      let myCookie = this.cookie_namespace+cookie+"=";
+      if (document.cookie) {
+        const index = document.cookie.indexOf(myCookie);
+        if (index != -1) {
+          const valStart = index + myCookie.length;
+          let valEnd = document.cookie.indexOf(";", valStart);
+          if (valEnd == -1) {
+            valEnd = document.cookie.length;
+          }
+          return document.cookie.substring(valStart, valEnd);
+        }
+      }
+    }
+    return defVal;
+  },
+
+  writeSetting(cookie,val,days=10*365) { // default days='forever', 0=session cookie, -1=delete
+    if (window.chrome) {
+      if (days==0) {
+        sessionStorage.setItem(this.cookie_namespace+cookie,val);
+      } else {
+        localStorage.setItem(this.cookie_namespace+cookie,val);
+      }
+    } else {
+      let date = new Date();
+      date.setTime(date.getTime()+(days*24*60*60*1000));
+      const expiration = days!=0 ? "expires="+date.toGMTString()+";" : "";
+      document.cookie = this.cookie_namespace + cookie + "=" +
+                        val + "; SameSite=Lax;" + expiration + "path=/";
+    }
+  },
+
+  eraseSetting(cookie) {
+    if (window.chrome) {
+      if (localStorage.getItem(this.cookie_namespace+cookie)) {
+        localStorage.removeItem(this.cookie_namespace+cookie);
+      } else if (sessionStorage.getItem(this.cookie_namespace+cookie)) {
+        sessionStorage.removeItem(this.cookie_namespace+cookie);
+      }
+    } else {
+      this.writeSetting(cookie,'',-1);
+    }
+  },
+}