The ansi target, txt table styles, kdesc reference from ref/, typeface and table-width fixes (from dev fcec5e2e77ac)

Since the previous release: Machine::read_string() (the fs::path/std::string
overload pair split); kdesc -c and -u rendered from the ref/ reflection
klammerset; a fit column's tex width measured in TeX over every entry;
@typeface resolving to the family its css declares (a store directory name
now works in html) and hieroglyphs in @unicode_examples set in their
typeface; the ansi target -- plain text with the type styles a terminal can
show, identical to txt once the escape sequences are stripped -- with the
txt @table carrying :header_style, :style and :hline; @block anchoring,
@table spacing and the Image_quality state variable; and the rewritten
doc/klammertext_for_llm.md.

com/kdesc.cpp

@@ -147,6 +147,36 @@ static void font_command(const strings_t& words)
     }
 }
 
+// The target for the Klammertext kdesc renders for its own output: the
+// ansi target (plain text with type styles as escape sequences) when
+// stdout is a terminal, the txt target otherwise.  The COMMAND decides,
+// because only it knows the stream -- the same per-stream rule Color
+// follows for the listings, NO_COLOR included -- and the targets stay
+// formats a writer names with -t.
+static std::string text_target()
+{
+    return color_enabled(std::cout) ? "ansi" : "txt";
+}
+
+void show_special_characters()
+{
+    Machine M;
+    M.read(M.m_state.value("KLAMMERTEXT_HOME") + "/ref/ref.k");
+    M.read_string("@b Writing characters with diacritics and non-English characters @\n\n");
+    M.read_string("@diacritics_examples@");
+    M.read_string("@extended_latin_examples@");
+    M.read_string("@pinyin_examples@");
+    std::cout << "\n" << M.apply(text_target()) << "\n";
+}
+
+void show_unicode_examples()
+{
+    Machine M;
+    M.read(M.m_state.value("KLAMMERTEXT_HOME") + "/ref/ref.k");
+    M.read_string("@unicode_examples@");
+    std::cout << "\n" << M.apply(text_target()) << "\n\n";
+}
+
 int main(int argc, char* argv[])
 {
     try {
@@ -189,13 +219,9 @@ int main(int argc, char* argv[])
             args.describe();
         }
 
-        if (p("c")) {
-            show_special_characters();
-            std::cout << "\n";
-        }
 
         if (p("u")) {
-            unicode_examples();
+            show_unicode_examples();
         }
 
         if (p("argtypes")) {
@@ -292,12 +318,17 @@ int main(int argc, char* argv[])
             }
         }
 
-
         strings_t own_klammers_only {};
         if (!input_filenames.empty()) {
             own_klammers_only = context_files;
         }
 
+
+        if (p("c")) {
+            show_special_characters();
+            std::cout << "\n";
+        }
+
         if (p("t")) {
             std::cout << boldblack << "Targets\n" << black
                       << M.m_targets.describe(2, true, own_klammers_only);