From f6d28b62f0e02b8a88a1832589e203c7a613f45b Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph.amissah@gmail.com>
Date: Fri, 25 Nov 2022 22:06:40 -0500
Subject: regex review, match speed & compile time, ctregex

- improve match time
  - add interim fontface identifier marker

- improve compile time
  - remove unused regexs
  - separate out some specialized output matches
---
 src/doc_reform/io_out/latex.d | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

(limited to 'src/doc_reform/io_out/latex.d')

diff --git a/src/doc_reform/io_out/latex.d b/src/doc_reform/io_out/latex.d
index 992887d..f7dee74 100644
--- a/src/doc_reform/io_out/latex.d
+++ b/src/doc_reform/io_out/latex.d
@@ -325,10 +325,14 @@ template outputLaTeX() {
     std.outbuffer,
     std.uri,
     std.conv : to;
-  import doc_reform.io_out;
-  mixin InternalMarkup; // watch
+  import
+    doc_reform.io_out,
+    doc_reform.io_out.rgx,
+    doc_reform.io_out.rgx_latex;
   mixin spineRgxOut;
   static auto rgx = RgxO();
+  mixin spineRgxLSC;
+  static auto rgx_sc = RgxLSC();
   mixin spineLanguageCodes;
   auto lang = Lang();
   auto paper = paperLaTeX;
@@ -337,23 +341,23 @@ template outputLaTeX() {
   ) {
     string _unescape_sp_char_esc()(string _txt) {
       _txt = _txt
-        .replaceAll(rgx.latex_special_char_escaped,
+        .replaceAll(rgx_sc.latex_special_char_escaped,
           format(q"┃%s┃", "$1"))
-        .replaceAll(rgx.latex_special_char_escaped_braced,
+        .replaceAll(rgx_sc.latex_special_char_escaped_braced,
           format(q"┃%s┃", "$1"));
       return _txt;
     }
     string _unescape_fontface_esc()(string _txt) {
-      _txt = _txt.replaceAll(rgx.latex_identify_inline_fontface,
+      _txt = _txt.replaceAll(rgx_sc.latex_identify_inline_fontface,
            format(q"┃%s%s┃", "$1", "$2"));
       return _txt;
     }
-    _txt = replaceAll!(m => "\\" ~ m[1])(_txt, rgx.latex_special_char_for_escape);
-    _txt = replaceAll!(m => "{\\" ~ m[1] ~ "}")(_txt, rgx.latex_special_char_for_escape_and_braces);
+    _txt = replaceAll!(m => "\\" ~ m[1])(_txt, rgx_sc.latex_special_char_for_escape);
+    _txt = replaceAll!(m => "{\\" ~ m[1] ~ "}")(_txt, rgx_sc.latex_special_char_for_escape_and_braces);
     _txt = replaceAll!(m => "''")(_txt, rgx.quotes_open_and_close);
     _txt = replaceAll!(m => "$\\cdot$")(_txt, rgx.middle_dot);
-    _txt = replaceAll!(m => _unescape_sp_char_esc(m[0]))(_txt, rgx.latex_identify_inline_link);
-    _txt = replaceAll!(m => _unescape_fontface_esc(m[0]))(_txt, rgx.latex_identify_inline_fontface);
+    _txt = replaceAll!(m => _unescape_sp_char_esc(m[0]))(_txt, rgx_sc.latex_identify_inline_link);
+    _txt = replaceAll!(m => _unescape_fontface_esc(m[0]))(_txt, rgx_sc.latex_identify_inline_fontface);
     return _txt;
   }
   @safe string sp_char_esc(O)(
@@ -461,8 +465,8 @@ template outputLaTeX() {
       }
       string _check_link(string _link) {
         _link = _link
-          .replaceFirst(rgx.latex_clean_internal_link, "")
-          .replaceAll(rgx.latex_special_char_for_escape_url, "\\$1");
+          .replaceFirst(rgx_sc.latex_clean_internal_link, "")
+          .replaceAll(rgx_sc.latex_special_char_for_escape_url, "\\$1");
         return _link;
       }
       if  (obj.metainfo.is_a != "code") {
@@ -529,7 +533,7 @@ template outputLaTeX() {
       string _tex_para;
       _tex_para = q"┃%s┃";
       _txt  = format(_tex_para,
-        _txt.replaceAll(rgx.latex_clean_bookindex_linebreak, "\n") ~ "\n\\brln\n"
+        _txt.replaceAll(rgx_sc.latex_clean_bookindex_linebreak, "\n") ~ "\n\\brln\n"
       );
     }
     return _txt;
@@ -1381,7 +1385,6 @@ template outputLaTeX() {
 }
 template outputLaTeXstyInit() {
   import doc_reform.io_out;
-  mixin spineRgxOut;
   auto paper = paperLaTeX;
   void writeOutputLaTeXstyStatic(
     string latex_sty,
-- 
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