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

1 files changed, 68 insertions, 0 deletions

diff --git a/src/doc_reform/io_out/rgx_latex.d b/src/doc_reform/io_out/rgx_latex.d
new file mode 100644
index 0000000..25b9c60
--- /dev/null
+++ b/src/doc_reform/io_out/rgx_latex.d
@@ -0,0 +1,68 @@
+/+
+- Name: Spine, Doc Reform [a part of]
+  - Description: documents, structuring, processing, publishing, search
+    - static content generator
+
+  - Author: Ralph Amissah
+    [ralph.amissah@gmail.com]
+
+  - Copyright: (C) 2015 - 2022 Ralph Amissah, All Rights
+    Reserved.
+
+  - License: AGPL 3 or later:
+
+    Spine (SiSU), a framework for document structuring, publishing and
+    search
+
+    Copyright (C) Ralph Amissah
+
+    This program is free software: you can redistribute it and/or modify it
+    under the terms of the GNU AFERO General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    This program is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+    more details.
+
+    You should have received a copy of the GNU General Public License along with
+    this program. If not, see [https://www.gnu.org/licenses/].
+
+    If you have Internet connection, the latest version of the AGPL should be
+    available at these locations:
+    [https://www.fsf.org/licensing/licenses/agpl.html]
+    [https://www.gnu.org/licenses/agpl.html]
+
+  - Spine (by Doc Reform, related to SiSU) uses standard:
+    - docReform markup syntax
+      - standard SiSU markup syntax with modified headers and minor modifications
+    - docReform object numbering
+      - standard SiSU object citation numbering & system
+
+  - Homepages:
+    [https://www.doc_reform.org]
+    [https://www.sisudoc.org]
+
+  - Git
+    [https://git.sisudoc.org/projects/?p=software/spine.git;a=summary]
+
++/
+/++
+  regex: regular expressions used in sisu document parser
++/
+module doc_reform.io_out.rgx_latex;
+static template spineRgxLSC() {
+  static struct RgxLSC {
+    static latex_special_char                       = ctRegex!(`([%${}_#&\\])`);
+    static latex_special_char_for_escape            = ctRegex!(`([%${}_#\\])`);
+    static latex_special_char_for_escape_and_braces = ctRegex!(`([&])`);
+    static latex_special_char_for_escape_url        = ctRegex!(`([%])`);
+    static latex_special_char_escaped               = ctRegex!(`\\([%${}_#\\])`);
+    static latex_special_char_escaped_braced        = ctRegex!(`[{]\\([&])[}]`);
+    static latex_identify_inline_link               = ctRegex!(`┥.+?┝┤\S+?├`, "mg");
+    static latex_identify_inline_fontface           = ctRegex!(`\\([_#$]┨.+?┣)\\([_#$])`, "mg");
+    static latex_clean_internal_link                = ctRegex!(`^(?:#|¤\S+?#)`, "m");
+    static latex_clean_bookindex_linebreak          = ctRegex!(`\s*\\\\\\\\\s*`, "m");
+  }
+}