From 90873fabd7451e1dd8c4b39303906e19bdc481f7 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph.amissah@gmail.com>
Date: Wed, 10 Apr 2024 22:24:34 -0400
Subject: 0.16.0 sisudoc (src/sisudoc sisudoc spine)

- src/sisudoc (replaces src/doc_reform)
- sisudoc spine (used more)
---
 src/sisudoc/io_out/paths_output.d | 672 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 672 insertions(+)
 create mode 100644 src/sisudoc/io_out/paths_output.d

(limited to 'src/sisudoc/io_out/paths_output.d')

diff --git a/src/sisudoc/io_out/paths_output.d b/src/sisudoc/io_out/paths_output.d
new file mode 100644
index 0000000..f134f41
--- /dev/null
+++ b/src/sisudoc/io_out/paths_output.d
@@ -0,0 +1,672 @@
+/+
+- Name: SisuDoc 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 - 2024 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.sisudoc.org]
+    [https://www.doc-reform.org]
+
+  - Git
+    [https://git.sisudoc.org/]
+
++/
+/++
+  default settings
++/
+module sisudoc.io_out.paths_output;
+@safe:
+import
+  std.array,
+  std.path,
+  std.regex,
+  std.stdio;
+import
+  sisudoc.meta.rgx_files;
+template spineOutPaths() {
+  auto spineOutPaths()(
+    string output_pth_root,
+    string lng = "",
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root.chainPath(lng)).asNormalizedPath).array;
+      }
+      string internal_base() {
+        return lng.asNormalizedPath.array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathSQLite() {
+  auto spineOutPathSQLite(Po)(
+    Po  output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathSQLiteCGI() {
+  auto spineOutPathSQLiteCGI(Po)(
+    Po  output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string output_root() {
+        return (output_pth_root.length > 0)
+        ? output_pth_root : "";
+      }
+      string output_base() {
+        return ((output_root).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineOutPathsFnPd() {
+  /+ TODO stuff to work out here +/
+  auto spineOutPathsFnPd(Fn,Pn)(
+    Fn  fn_src_pth,
+    Pn  pod_name_with_path
+  ) {
+    struct _PathsStruct {
+      string base_filename() {
+        return fn_src_pth.baseName.stripExtension;
+      }
+      string base_pod_and_filename() { // TODO
+        /+
+          - if pod,
+            - pod_name
+            - file_name
+            - if pod_name == file_name
+              - file_name
+            - else if pod_name != file_name
+              - pod_name.file_name
+        +/
+        string _fn_src = fn_src_pth.baseName.stripExtension;
+        string _output_base_name;
+        if (!(pod_name_with_path.empty)) {
+          if (pod_name_with_path == _fn_src) {
+            _output_base_name = _fn_src;
+          } else {
+            _output_base_name = pod_name_with_path ~ "." ~ _fn_src;
+          }
+        } else {
+          _output_base_name = _fn_src;
+        }
+        return _output_base_name;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+
+template spineDocRootTreeHTML() {
+  auto spineDocRootTreeHTML()(string lng) {
+    auto lng_pth = spineOutPaths!()("", lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base_filename_scroll(string fn_src) {
+        return base_filename(fn_src);
+      }
+      string base_filename_seg(string fn_src) {
+        return base_filename(fn_src);
+      }
+      string doc_root() {
+        return ((lng_pth.output_root).asNormalizedPath).array;
+      }
+      string base() {
+        return (((lng).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string image() {
+        return (("image").asNormalizedPath).array;
+      }
+      string css() {
+        return (("css").asNormalizedPath).array;
+      }
+      string fn_seg_css() {
+        return ((css.chainPath("html_seg.css")).asNormalizedPath).array;
+      }
+      string fn_scroll_css() {
+        return ((css.chainPath("html_scroll.css")).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((base.chainPath(base_filename_seg(fn_src))).asNormalizedPath).array;
+      }
+      string fn_metadata(string fn_src) {
+        return ((base.chainPath("metadata." ~ base_filename_scroll(fn_src) ~ suffix)).asNormalizedPath).array;
+      }
+      string fn_scroll(string fn_src) {
+        return ((base.chainPath(base_filename_scroll(fn_src) ~ suffix)).asNormalizedPath).array;
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return ((seg(fn_src).chainPath(seg_filename ~ suffix)).asNormalizedPath).array;
+      }
+      string tail_seg(string fn_src) {
+        return lng ~ "/html/" ~ base_filename_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return lng ~ "/html/" ~ base_filename_scroll(fn_src) ~ suffix;
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return lng ~ "/html/" ~ seg(fn_src) ~ "/" ~ seg_filename ~ suffix;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsHTML() {
+  auto spinePathsHTML()(
+    string output_path_root,
+    string lng,
+  ) {
+    auto doc_tree = spineDocRootTreeHTML!()(lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string doc_root() {
+        return ((output_path_root.chainPath(doc_tree.doc_root)).asNormalizedPath).array;
+      }
+      string curate(string fn_curate) {
+        return doc_root ~ "/" ~ fn_curate;
+      }
+      string internal_base() {
+        return ((doc_tree.base).asNormalizedPath).array;
+      }
+      string base() {
+        return ((output_path_root.chainPath(doc_tree.base)).asNormalizedPath).array;
+      }
+      string image() {
+        return ((output_path_root.chainPath(doc_tree.image)).asNormalizedPath).array;
+      }
+      string css() {
+        return ((output_path_root.chainPath(doc_tree.css)).asNormalizedPath).array;
+      }
+      string fn_seg_css() {
+        return ((output_path_root.chainPath(doc_tree.fn_seg_css)).asNormalizedPath).array;
+      }
+      string fn_scroll_css() {
+        return ((output_path_root.chainPath(doc_tree.fn_scroll_css)).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.seg(fn_src))).asNormalizedPath).array;
+      }
+      string fn_metadata(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.fn_metadata(fn_src))).asNormalizedPath).array;
+      }
+      string fn_scroll(string fn_src) {
+        return ((output_path_root.chainPath(doc_tree.fn_scroll(fn_src))).asNormalizedPath).array;
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return ((output_path_root.chainPath(doc_tree.fn_seg(fn_src, seg_filename))).asNormalizedPath).array;
+      }
+      string tail_seg(string fn_src) {
+        return doc_tree.tail_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return doc_tree.tail_fn_scroll(fn_src);
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return doc_tree.tail_fn_seg(fn_src, seg_filename);
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spineUrlsHTML() {
+  import std.format;
+  auto spineUrlsHTML()(
+    string url_doc_root,
+    string lng,
+  ) {
+    auto doc_tree = spineDocRootTreeHTML!()(lng);
+    string base_dir = "html";
+    string suffix = ".html";
+    struct _PathsStruct {
+      string doc_root() {
+        return url_doc_root ~ ((doc_tree.doc_root).asNormalizedPath).array;
+      }
+      string curate(string fn_curate) {
+        return format(q"┃%s/%s┃",
+          doc_root,
+          fn_curate,
+        );
+      }
+      string base() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.base).asNormalizedPath).array,
+        );
+      }
+      string image() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.image).asNormalizedPath).array,
+        );
+      }
+      string css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.css).asNormalizedPath).array,
+        );
+      }
+      string fn_seg_css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg_css).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll_css() {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll_css).asNormalizedPath).array,
+        );
+      }
+      string seg(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.seg(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_metadata(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_metadata(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll(string fn_src) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll(fn_src)).asNormalizedPath).array,
+        );
+      }
+      string fn_seg(string fn_src, string seg_filename) {
+        return format(q"┃%s/%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg(fn_src, seg_filename)).asNormalizedPath).array,
+        );
+      }
+      string fn_scroll_obj_num(string fn_src, string obj_num) {
+        return format(q"┃%s/%s#%s┃",
+          url_doc_root,
+          ((doc_tree.fn_scroll(fn_src)).asNormalizedPath).array,
+          obj_num,
+        );
+      }
+      string fn_seg_obj_num(string fn_src, string seg_filename, string obj_num) {
+        return format(q"┃%s/%s#%s┃",
+          url_doc_root,
+          ((doc_tree.fn_seg(fn_src, seg_filename)).asNormalizedPath).array,
+          obj_num,
+        );
+      }
+      string tail_seg(string fn_src) {
+        return doc_tree.tail_seg(fn_src);
+      }
+      string tail_fn_scroll(string fn_src) {
+        return doc_tree.tail_fn_scroll(fn_src);
+      }
+      string tail_fn_seg(string fn_src, string seg_filename) {
+        return doc_tree.tail_fn_seg(fn_src, seg_filename);
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsEPUB() {
+  auto spinePathsEPUB()(
+    string output_pth_root,
+    string lng,
+  ) {
+    auto out_pth = spineOutPaths!()(output_pth_root, lng);
+    string base_dir = "epub";
+    struct _PathsStruct {
+      string internal_base() {
+        return (((out_pth.internal_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string base() {
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base_filename_epub(string fn_src) {
+        return base_filename(fn_src) ~ "." ~ lng;
+      }
+      string doc_meta_inf() {
+        return (("META-INF").asNormalizedPath).array;
+      }
+      string doc_oebps() {
+        return (("OEBPS").asNormalizedPath).array;
+      }
+      string doc_oebps_css() {
+        return ((doc_oebps.chainPath("Styles")).asNormalizedPath).array;
+      }
+      string doc_oebps_image() {
+        return ((doc_oebps.chainPath("image")).asNormalizedPath).array;
+      }
+      string epub_file(string fn_src) {
+        return ((base.chainPath(base_filename_epub(fn_src) ~ ".epub")).asNormalizedPath).array;
+      }
+      string dirtop() {
+        return "".chainPath("").array;
+      }
+      string fn_mimetypes() {
+        return ((dirtop.chainPath("mimetype")).asNormalizedPath).array;
+      }
+      string fn_dmi_container_xml() {
+        return ((doc_meta_inf.chainPath("container.xml")).asNormalizedPath).array;
+      }
+      string fn_oebps_toc_nav_xhtml() {
+        return ((doc_oebps.chainPath("toc_nav.xhtml")).asNormalizedPath).array;
+      }
+      string fn_oebps_toc_ncx() {
+        return ((doc_oebps.chainPath("toc.ncx")).asNormalizedPath).array;
+      }
+      string fn_oebps_content_opf() {
+        return ((doc_oebps.chainPath("content.opf")).asNormalizedPath).array;
+      }
+      string fn_oebps_content_xhtml(string seg_filename) {
+        return ((doc_oebps.chainPath(seg_filename ~ ".xhtml")).asNormalizedPath).array;
+      }
+      string fn_oebps_css() {
+        return ((doc_oebps_css.chainPath("epub.css")).asNormalizedPath).array;
+      }
+      /+ debug +/
+      string dbg_docdir(string fn_src) {
+        return base.chainPath(base_filename(fn_src)).array;
+      }
+      string dbg_docdir_oebps(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("OEBPS").array;
+      }
+      string dbg_doc_meta_inf(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("META-INF").array;
+      }
+      string dbg_doc_oebps(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("OEBPS").array;
+      }
+      string dbg_doc_oebps_css(string fn_src) {
+        return dbg_doc_oebps(fn_src).chainPath("Styles").array;
+      }
+      string dbg_doc_oebps_image(string fn_src) {
+        return dbg_doc_oebps(fn_src).chainPath("image").array;
+      }
+      string dbg_fn_mimetypes(string fn_src) {
+        return dbg_docdir(fn_src).chainPath("mimetype").array;
+      }
+      string dbg_fn_dmi_container_xml(string fn_src) {
+        return dbg_doc_meta_inf(fn_src).chainPath("container.xml").array;
+      }
+      string dbg_fn_oebps_toc_nav_xhtml(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("toc_nav.xhtml").array;
+      }
+      string dbg_fn_oebps_toc_ncx(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("toc.ncx").array;
+      }
+      string dbg_fn_oebps_content_opf(string fn_src) {
+        return dbg_docdir_oebps(fn_src).chainPath("content.opf").array;
+      }
+      string dbg_fn_oebps_content_xhtml(string fn_src, string seg_filename) {
+        return dbg_docdir_oebps(fn_src).chainPath(seg_filename ~ ".xhtml").array;
+      }
+      string dbg_fn_oebps_css(string fn_src) {
+        return dbg_doc_oebps_css(fn_src).chainPath("epub.css").array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsODT() {
+  import std.conv;
+  auto spinePathsODT(M)(
+    M  doc_matters,
+  ) {
+    auto out_pth = spineOutPaths!()( doc_matters.output_path, doc_matters.src.language);
+    string base_dir = "odf";
+    struct _PathsStruct {
+      string base_pth() { // dir will contain odt document file (also debug file tree)
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string odt_file() {
+        return ((base_pth.chainPath(doc_matters.src.doc_uid_out ~ ".odt")).asNormalizedPath).array;
+      }
+      string dirtop(string type) {
+        return (type == "zip")
+        ? "" // ".chainPath("").array
+        : ((base_pth.chainPath(doc_matters.src.doc_uid_out)).asNormalizedPath).array.to!string;
+      }
+      string mimetype(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("mimetype")).asNormalizedPath).array;
+      }
+      string manifest_rdf(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("manifest.rdf")).asNormalizedPath).array;
+      }
+      string settings_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("settings.xml")).asNormalizedPath).array;
+      }
+      string styles_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("styles.xml")).asNormalizedPath).array;
+      }
+      string image_dir(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("Pictures")).asNormalizedPath).array;
+      }
+      string image(string image_fn_src, string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((image_dir(type).chainPath(image_fn_src)).asNormalizedPath).array;
+      }
+      string content_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("content.xml")).asNormalizedPath).array;
+      }
+      string meta_inf_dir(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("META-INF")).asNormalizedPath).array;
+      }
+      string manifest_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((meta_inf_dir(type).chainPath("manifest.xml")).asNormalizedPath).array;
+      }
+      string meta_xml(string type="fs") {
+        assert(type == "zip" || "fs");
+        return ((dirtop(type).chainPath("meta.xml")).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsPDF() {
+  auto spinePathsPDF(M)(
+    M  doc_matters,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      auto out_pth() {
+        string output_dir = doc_matters.output_path ~ "/pdf";
+        return spineOutPaths!()(output_dir);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("pdf")).asNormalizedPath).array;
+      }
+      string pdf_path_stuff() {
+        return ((base.chainPath(base_filename(doc_matters.src.filename))).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsLaTeX() {
+  auto spinePathsLaTeX(M)(
+    M  doc_matters,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      auto out_pth() {
+        return spineOutPaths!()(doc_matters.output_path, doc_matters.src.language);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("latex")).asNormalizedPath).array;
+      }
+      string base_sty() {
+        return (((out_pth.output_root).chainPath("latex").chainPath("sty")).asNormalizedPath).array;
+      }
+      string latex_path_stuff() {
+        return ((base.chainPath(base_filename(doc_matters.src.filename))).asNormalizedPath).array;
+      }
+      string latex_file_with_path(string paper_size_orientation) {
+        return ((base.chainPath(base_filename(doc_matters.src.filename)
+             ~ "." ~ doc_matters.src.language
+             ~ "."  ~ paper_size_orientation
+             ~ ".tex")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path(string paper_size_orientation) { // spineA4portrait.sty
+        return ((base_sty.chainPath("spine"
+             ~ paper_size_orientation
+             ~ ".sty")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path_static() { // spineShared.sty
+        return ((base_sty.chainPath("spineShared.sty")).asNormalizedPath).array;
+      }
+      string images() {
+        string image_dir = "image";
+        return (((base).chainPath(image_dir)).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsLaTeXsty() {
+  auto spinePathsLaTeXsty(string output_dir) {
+    struct _PathsStruct {
+      auto out_pth() {
+        return spineOutPaths!()(output_dir);
+      }
+      string base() {
+        return (((out_pth.output_root).chainPath("latex")).asNormalizedPath).array;
+      }
+      string base_sty() {
+        return (((out_pth.output_root).chainPath("latex").chainPath("sty")).asNormalizedPath).array;
+      }
+      string latex_sty_with_path(string paper_size_orientation) { // spineA4portrait.sty
+        return ((base_sty.chainPath("spine"
+             ~ paper_size_orientation
+             ~ ".sty")
+          ).asNormalizedPath).array;
+      }
+      string latex_sty_with_path_static() { // spineShared.sty
+        return ((base_sty.chainPath("spineShared.sty")).asNormalizedPath).array;
+      }
+      string latex_document_header_sty(string filename) { // spineShared.sty
+        return ((base_sty.chainPath(filename)).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsSQLiteDiscrete() {
+  auto spinePathsSQLiteDiscrete()(
+    string output_pth_root,
+    string lng,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base() {
+        auto out_pth = spineOutPaths!()(output_pth_root, lng);
+        string base_dir = "sqlite";
+        return (((out_pth.output_base).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string seg(string fn_src) {
+        return ((base.chainPath(base_filename(fn_src))).asNormalizedPath).array;
+      }
+      string sqlite_file(string fn_src) {
+        return ((base.chainPath(base_filename(fn_src) ~ ".sql.db")).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
+template spinePathsSQLite() {
+  auto spinePathsSQLite()(
+    string db_name,
+    string output_pth_root,
+  ) {
+    struct _PathsStruct {
+      string base_filename(string fn_src) {
+        return fn_src.baseName.stripExtension;
+      }
+      string base() {
+        auto out_pth = spineOutPathSQLite!()(output_pth_root); // decide whether to have separate files for each language
+        string base_dir = "";
+        return (((out_pth.output_root).chainPath(base_dir)).asNormalizedPath).array;
+      }
+      string sqlite_file() {
+        return (base.chainPath(db_name).asNormalizedPath).array;
+      }
+    }
+    return _PathsStruct();
+  }
+}
-- 
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