use moustache library

lib/template_render/library.json

@@ -1,5 +0,0 @@
-{
-    "name": "template_render",
-    "version": "1.0.0",
-    "description": "A mini template renderer"
-}

lib/template_render/template_render.h

@@ -1,53 +0,0 @@
-#pragma once
-
-#include <Arduino.h>
-
-typedef struct
-{
-    const char *key;
-    const String value;
-} template_variable_t;
-
-template <typename T, size_t n>
-inline String template_render(const String& format, T (&values)[n])
-{
-    auto s = String(format);
-    // Conditional sections
-    for (size_t i = 0; i < n; i++)
-    {
-        // Include Section {{#expr}}
-        auto match_section_begin = "{{#" + String(values[i].key) + "}}";
-        // Inverted section {{^expr}}
-        auto match_section_inverted_begin = "{{^" + String(values[i].key) + "}}";
-        // End section {{/expr}}
-        auto match_section_end = "{{/" + String(values[i].key) + "}}";
-        while (true)
-        {
-            bool inverted = false;
-            auto first = s.indexOf(match_section_begin);
-            if (first < 0)
-            {
-                inverted = true;
-                first = s.indexOf(match_section_inverted_begin);
-                if (first < 0)
-                    break;
-            }
-
-            auto second = s.indexOf(match_section_end, first + match_section_begin.length());
-            if (second < 0)
-                break;
-
-            // Arduino returns 0 and 1 for bool.toString()
-            if ((!inverted && (values[i].value == "1")) || (inverted && (values[i].value == "0")))
-                s = s.substring(0, first) + s.substring(first + match_section_begin.length(), second) + s.substring(second + match_section_end.length());
-            else
-                s = s.substring(0, first) + s.substring(second + match_section_end.length());
-        }
-    }
-
-    // Replace variables {{variable}}
-    for (size_t i = 0; i < n; i++)
-        s.replace("{{" + String(values[i].key) + "}}", values[i].value);
-
-    return s;
-}

platformio.ini

@@ -33,3 +33,4 @@ build_flags =
 lib_deps =
     prampec/IotWebConf @ ^3.2.1
     geeksville/Micro-RTSP @ ^0.1.6
+    rzeldent/micro-moustache @ ^1.0.0

src/main.cpp

@@ -10,7 +10,7 @@
 #include <camera_config.h>
 #include <format_duration.h>
 #include <format_number.h>
-#include <template_render.h>
+#include <moustache.h>
 #include <html_data.h>
 #include <html_data_gzip.h>
 #include <settings.h>
@@ -68,7 +68,7 @@ void handle_root()
   // Wifi Modes
   const char *wifi_modes[] = {"NULL", "STA", "AP", "STA+AP"};
 
-  const template_variable_t substitutions[] = {
+  const moustache_variable_t substitutions[] = {
       // Config Changed?
       {"ConfigChanged", String(config_changed)},
       // Version / CPU
@@ -112,7 +112,7 @@ void handle_root()
       {"RtspPort", String(RTSP_PORT)}};
 
   web_server.sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
-  auto html = template_render(file_data_index_html, substitutions);
+  auto html = moustache_render(file_data_index_html, substitutions);
   web_server.send(200, "text/html", html);
 }
 
@@ -128,12 +128,12 @@ void handle_restart()
     return;
   }
 
-  const template_variable_t substitutions[] = {
+  const moustache_variable_t substitutions[] = {
       {"AppTitle", APP_TITLE},
       {"AppVersion", APP_VERSION},
       {"ThingName", iotWebConf.getThingName()}};
 
-  auto html = template_render(file_data_restart_html, substitutions);
+  auto html = moustache_render(file_data_restart_html, substitutions);
   web_server.send(200, "text/html", html);
   log_v("Restarting... Press refresh to connect again");
   sleep(100);