cgi search housekeeping, sync & remove redundancy

- removed copy of d search form both org and src
  duplication & out of date

1 files changed, 0 insertions, 963 deletions

diff --git a/sundry/misc/util/d/cgi/search/src/spine_cgi_sqlite_search.d b/sundry/misc/util/d/cgi/search/src/spine_cgi_sqlite_search.d
deleted file mode 100644
index a8e2757..0000000
--- a/sundry/misc/util/d/cgi/search/src/spine_cgi_sqlite_search.d
+++ /dev/null
@@ -1,963 +0,0 @@
-/+
-- 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]
-
-+/
-/+ dub.sdl
-  name "spine search"
-  description "spine cgi search"
-+/
-import std.format;
-import std.range;
-import std.regex;
-import arsd.cgi;
-import d2sqlite3;
-import std.process : environment;
-void cgi_function_intro(Cgi cgi) {
-  string header;
-  string table;
-  string form;
-  struct Config {
-    string http_request_type;
-    string http_host;
-    // string server_name;
-    string doc_root;
-    string cgi_root;
-    string cgi_script;
-    string data_path_html;
-    string db_path;
-    string query_string;
-    string http_url;
-    string request_method;
-  }
-  auto conf = Config();
-  conf.http_request_type    = environment.get("REQUEST_SCHEME",        "http");
-  conf.http_host            = environment.get("HTTP_HOST",             "localhost");
-  // conf.server_name          = environment.get("SERVER_NAME",           "localhost");
-  conf.doc_root             = environment.get("DOCUMENT_ROOT",         "/var/www/html");
-  conf.cgi_root             = environment.get("CONTEXT_DOCUMENT_ROOT", "/usr/lib/cgi-bin/");
-  // conf.cgi_script           = environment.get("SCRIPT_NAME",           "/cgi-bin/spine-search");
-  conf.query_string         = environment.get("QUERY_STRING",          "");
-  conf.http_url             = environment.get("HTTP_REFERER",          conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ conf.query_string);
-  conf.db_path              = "/var/www/html/sqlite/";                 // conf.http_host ~ "/sqlite/";
-  conf.request_method       = environment.get("REQUEST_METHOD",        "POST");
-  struct CGI_val {
-    string db_selected      = "";
-    string sql_match_limit  = "";     // radio: ( 1000 | 2500 )
-    string sql_match_offset = "";
-    string search_text      = "";
-    string results_type     = "";     // index
-    bool   checked_echo     = false;
-    bool   checked_stats    = false;
-    bool   checked_url      = false;
-    bool   checked_searched = false;
-    bool   checked_tip      = false;
-    bool   checked_sql      = false;
-  }
-  auto cv = CGI_val();
-  cv.db_selected = "spine.search.db"; // config, set db name
-  auto text_fields() {
-    string canned_query_str = environment.get("QUERY_STRING", "");
-    if ("query_string" in cgi.post) {
-      canned_query_str = environment.get("QUERY_STRING", "");
-    }
-    string[string] canned_query;
-    if (conf.request_method == "POST") {
-    } else if (conf.request_method == "GET") {
-      foreach (pair_str; canned_query_str.split("&")) {
-        // cgi.write(pair_str ~ "<br>");
-        string[] pair = pair_str.split("=");
-        canned_query[pair[0]] = pair[1];
-      }
-      // foreach (field, content; canned_query) {
-      //   cgi.write(field ~ ": " ~ content ~ "<br>");
-      // }
-    }
-    static struct Rgx {
-      // static canned_query   = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
-      static search_text_area  = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
-      // static fulltext       = ctRegex!(`\A(?P<matched>.+)\Z`,                            "m");
-      static line              = ctRegex!(`^(?P<matched>.+?)(?: ~|$)`,                      "m");
-      static text              = ctRegex!(`(?:^|\s~\s*)text:\s+(?P<matched>.+?)(?: ~|$)`,   "m");
-      static author            = ctRegex!(`(?:^|\s~\s*)author:\s+(?P<matched>.+)$`,         "m");
-      static title             = ctRegex!(`(?:^|\s~\s*)title:\s+(?P<matched>.+)$`,          "m");
-      static uid               = ctRegex!(`(?:^|\s~\s*)uid:\s+(?P<matched>.+)$`,            "m");
-      static fn                = ctRegex!(`(?:^|\s~\s*)fn:\s+(?P<matched>.+)$`,             "m");
-      static keywords          = ctRegex!(`(?:^|\s~\s*)keywords:\s+(?P<matched>.+)$`,       "m");
-      static topic_register    = ctRegex!(`(?:^|\s~\s*)topic_register:\s+(?P<matched>.+)$`, "m");
-      static subject           = ctRegex!(`(?:^|\s~\s*)subject:\s+(?P<matched>.+)$`,        "m");
-      static description       = ctRegex!(`(?:^|\s~\s*)description:\s+(?P<matched>.+)$`,    "m");
-      static publisher         = ctRegex!(`(?:^|\s~\s*)publisher:\s+(?P<matched>.+)$`,      "m");
-      static editor            = ctRegex!(`(?:^|\s~\s*)editor:\s+(?P<matched>.+)$`,         "m");
-      static contributor       = ctRegex!(`(?:^|\s~\s*)contributor:\s+(?P<matched>.+)$`,    "m");
-      static date              = ctRegex!(`(?:^|\s~\s*)date:\s+(?P<matched>.+)$`,           "m");
-      static results_type      = ctRegex!(`(?:^|\s~\s*)type:\s+(?P<matched>.+)$`,           "m");
-      static format            = ctRegex!(`(?:^|\s~\s*)format:\s+(?P<matched>.+)$`,         "m");
-      static identifier        = ctRegex!(`(?:^|\s~\s*)identifier:\s+(?P<matched>.+)$`,     "m");
-      static source            = ctRegex!(`(?:^|\s~\s*)source:\s+(?P<matched>.+)$`,         "m");
-      static language          = ctRegex!(`(?:^|\s~\s*)language:\s+(?P<matched>.+)$`,       "m");
-      static relation          = ctRegex!(`(?:^|\s~\s*)relation:\s+(?P<matched>.+)$`,       "m");
-      static coverage          = ctRegex!(`(?:^|\s~\s*)coverage:\s+(?P<matched>.+)$`,       "m");
-      static rights            = ctRegex!(`(?:^|\s~\s*)rights:\s+(?P<matched>.+)$`,         "m");
-      static comment           = ctRegex!(`(?:^|\s~\s*)comment:\s+(?P<matched>.+)$`,        "m");
-      // static abstract_         = ctRegex!(`(?:^|\s~\s*)abstract:\s+(?P<matched>.+)$`,       "m");
-      static src_filename_base = ctRegex!(`^src_filename_base:\s+(?P<matched>.+)$`,         "m");
-    }
-    struct searchFields {
-      string canned_query      = ""; // GET  canned_query     == cq
-      string search_text_area  = ""; // POST search_text_area == tsa
-      string text              = ""; // text              == txt
-      string author            = ""; // author            == au
-      string title             = ""; // title             == ti
-      string uid               = "";  // uid               == uid
-      string fn                = ""; // fn                == fn
-      string keywords          = ""; // keywords          == kw
-      string topic_register    = ""; // topic_register    == tr
-      string subject           = ""; // subject           == su
-      string description       = ""; // description       == de
-      string publisher         = ""; // publisher         == pb
-      string editor            = ""; // editor            == ed
-      string contributor       = ""; // contributor       == ct
-      string date              = ""; // date              == dt
-      string format            = ""; // format            == fmt
-      string identifier        = ""; // identifier        == id
-      string source            = ""; // source            == src sfn
-      string language          = ""; // language          == lng
-      string relation          = ""; // relation          == rl
-      string coverage          = ""; // coverage          == cv
-      string rights            = ""; // rights            == rgt
-      string comment           = ""; // comment           == cmt
-      // string abstract          = "";
-      string src_filename_base = ""; // src_filename_base == bfn
-      string results_type      = ""; // results_type      == rt     radio
-      string sql_match_limit   = ""; // sql_match_limit   == sml    radio
-      string sql_match_offset  = ""; // sql_match_offset  == smo
-      string stats             = ""; // stats             == sts    checked
-      string echo              = ""; // echo              == ec     checked
-      string url               = ""; // url               == url    checked
-      string searched          = ""; // searched          == se     checked
-      string sql               = ""; // sql               == sql    checked
-    }
-    auto rgx  = Rgx();
-    auto got  = searchFields();
-    if (environment.get("REQUEST_METHOD", "POST") == "POST") {
-      if ("sf" in cgi.post) {
-        got.search_text_area =  cgi.post["sf"];
-        if (auto m = got.search_text_area.matchFirst(rgx.text)) {
-          got.text = m["matched"];
-          got.canned_query ~= "sf=" ~ m["matched"];
-        } else if (auto m = got.search_text_area.matchFirst(rgx.line)) {
-          if (
-            !(m["matched"].matchFirst(rgx.author))
-            && !(m["matched"].matchFirst(rgx.title))
-          ) {
-            got.text = m["matched"];
-            got.canned_query ~= "sf=" ~ m["matched"];
-          }
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.author)) {
-          got.author = m["matched"];
-          got.canned_query ~= "&au=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.title)) {
-          got.title = m["matched"];
-          got.canned_query ~= "&ti=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.uid)) {
-          got.uid = m["matched"];
-          got.canned_query ~= "&uid=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.fn)) {
-          got.fn = m["matched"];
-          got.canned_query ~= "&fn=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.keywords)) {
-          got.keywords = m["matched"];
-          got.canned_query ~= "&kw=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.topic_register)) {
-          got.topic_register = m["matched"];
-          got.canned_query ~= "&tr=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.subject)) {
-          got.subject = m["matched"];
-          got.canned_query ~= "&su=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.description)) {
-          got.description = m["matched"];
-          got.canned_query ~= "&de=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.publisher)) {
-          got.publisher = m["matched"];
-          got.canned_query ~= "&pb=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.editor)) {
-          got.editor = m["matched"];
-          got.canned_query ~= "&ed=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.contributor)) {
-          got.contributor = m["matched"];
-          got.canned_query ~= "&ct=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.date)) {
-          got.date = m["matched"];
-          got.canned_query ~= "&dt=" ~ m["matched"];
-        }
-        // if (auto m = got.search_text_area.matchFirst(rgx.results_type)) {
-        //   got.results_type = m["matched"];
-        //   got.canned_query ~= "&rt=" ~ m["matched"];
-        // }
-        if (auto m = got.search_text_area.matchFirst(rgx.format)) {
-          got.format = m["matched"];
-          got.canned_query ~= "&fmt=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.identifier)) {
-          got.identifier = m["matched"];
-          got.canned_query ~= "&id=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.source)) {
-          got.source = m["matched"];
-          got.canned_query ~= "&src=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.language)) {
-          got.language = m["matched"];
-          got.canned_query ~= "&lng=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.relation)) {
-          got.relation = m["matched"];
-          got.canned_query ~= "&rl=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.coverage)) {
-          got.coverage = m["matched"];
-          got.canned_query ~= "&cv=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.rights)) {
-          got.rights = m["matched"];
-          got.canned_query ~= "&rgt=" ~ m["matched"];
-        }
-        if (auto m = got.search_text_area.matchFirst(rgx.comment)) {
-          got.comment = m["matched"];
-          got.canned_query ~= "&cmt=" ~ m["matched"];
-        }
-        // if (auto m = search_text_area.matchFirst(rgx.abstract)) {
-        //   got.abstract = m["matched"];
-        // }
-        if (auto m = got.search_text_area.matchFirst(rgx.src_filename_base)) {
-          got.src_filename_base = m["matched"];
-          got.canned_query ~= "&bfn=" ~ m["matched"];
-        }
-      }
-      if ("fn" in cgi.post) {
-        got.fn =  cgi.post["fn"];
-        got.canned_query ~= "&fn=" ~ cgi.post["fn"];
-      }
-      if ("rt" in cgi.post) {
-        got.results_type =  cgi.post["rt"];
-        got.canned_query ~= "&rt=" ~ cgi.post["rt"];
-      }
-      if ("sts" in cgi.post) {
-        got.stats =  cgi.post["sts"];
-        got.canned_query ~= "&sts=" ~ cgi.post["sts"];
-      }
-      if ("ec" in cgi.post) {
-        got.echo =  cgi.post["ec"];
-        got.canned_query ~= "&ec=" ~ cgi.post["ec"];
-      }
-      if ("url" in cgi.post) {
-        got.url =  cgi.post["url"];
-        got.canned_query ~= "&url=" ~ cgi.post["url"];
-      }
-      if ("se" in cgi.post) {
-        got.searched =  cgi.post["se"];
-        got.canned_query ~= "&se=" ~ cgi.post["se"];
-      }
-      if ("sql" in cgi.post) {
-        got.sql =  cgi.post["sql"];
-        got.canned_query ~= "&sql=" ~ cgi.post["sql"];
-      }
-      if ("sml" in cgi.post) {
-        got.sql_match_limit =  cgi.post["sml"];
-        got.canned_query ~= "&sml=" ~ cgi.post["sml"];
-      }
-      if ("smo" in cgi.post) {
-        got.sql_match_offset = "0";   // cgi.post["smo"];
-        got.canned_query ~= "&smo=0"; //  ~ cgi.post["smo"];
-      }
-      got.canned_query = got.canned_query.strip.split(" ").join("%20");
-      conf.query_string = got.canned_query;
-      // cgi.write("f.canned_query: " ~ got.canned_query ~ "<br>");
-    } else if (environment.get("REQUEST_METHOD", "POST") == "GET") {
-      got.canned_query = environment.get("QUERY_STRING", "");
-      // cgi.write("f.canned_query: " ~ got.canned_query ~ "<br>");
-      got.search_text_area = "";
-      if ("sf" in canned_query && !(canned_query["sf"]).empty) {
-        got.text = canned_query["sf"].split("%20").join(" ");
-        got.search_text_area ~= "text: " ~ got.text ~ "\n";
-      }
-      if ("au" in canned_query && !(canned_query["au"]).empty) {
-        got.author = canned_query["au"].split("%20").join(" ");
-        got.search_text_area ~= "author: " ~ got.author ~ "\n";
-      }
-      if ("ti" in canned_query && !(canned_query["ti"]).empty) {
-        got.title = canned_query["ti"].split("%20").join(" ");
-        got.search_text_area ~= "title: " ~ got.title ~ "\n";
-      }
-      if ("uid" in canned_query && !(canned_query["uid"]).empty) {
-        got.uid = canned_query["uid"].split("%20").join(" ");
-        got.search_text_area ~= "uid: " ~ got.uid ~ "\n";
-      }
-      if ("fn" in canned_query && !(canned_query["fn"]).empty) {
-        got.fn = canned_query["fn"].split("%20").join(" ");
-        got.search_text_area ~= "fn: " ~ got.fn ~ "\n";
-      }
-      if ("kw" in canned_query && !(canned_query["kw"]).empty) {
-        got.keywords = canned_query["kw"].split("%20").join(" ");
-        got.search_text_area ~= "keywords: " ~ got.keywords ~ "\n";
-      }
-      if ("tr" in canned_query && !(canned_query["tr"]).empty) {
-        got.topic_register = canned_query["tr"].split("%20").join(" ");
-        got.search_text_area ~= "topic_register: " ~ got.topic_register ~ "\n";
-      }
-      if ("su" in canned_query && !(canned_query["su"]).empty) {
-        got.subject = canned_query["su"].split("%20").join(" ");
-        got.search_text_area ~= "subject: " ~ got.subject ~ "\n";
-      }
-      if ("de" in canned_query && !(canned_query["de"]).empty) {
-        got.description = canned_query["de"].split("%20").join(" ");
-        got.search_text_area ~= "description: " ~ got.description ~ "\n";
-      }
-      if ("pb" in canned_query && !(canned_query["pb"]).empty) {
-        got.publisher = canned_query["pb"].split("%20").join(" ");
-        got.search_text_area ~= "publisher: " ~ got.publisher ~ "\n";
-      }
-      if ("ed" in canned_query && !(canned_query["ed"]).empty) {
-        got.editor = canned_query["ed"].split("%20").join(" ");
-        got.search_text_area ~= "editor: " ~ got.editor ~ "\n";
-      }
-      if ("ct" in canned_query && !(canned_query["ct"]).empty) {
-        got.contributor = canned_query["ct"].split("%20").join(" ");
-        got.search_text_area ~= "contributor: " ~ got.contributor ~ "\n";
-      }
-      if ("dt" in canned_query && !(canned_query["dt"]).empty) {
-        got.date = canned_query["dt"].split("%20").join(" ");
-        got.search_text_area ~= "date: " ~ got.date ~ "\n";
-      }
-      if ("rt" in canned_query && !(canned_query["rt"]).empty) {
-        got.results_type = canned_query["rt"].split("%20").join(" ");
-        // got.search_text_area ~= "results_type: " ~ got.results_type ~ "\n";
-      }
-      if ("fmt" in canned_query && !(canned_query["fmt"]).empty) {
-        got.format = canned_query["fmt"].split("%20").join(" ");
-        got.search_text_area ~= "format: " ~ got.format ~ "\n";
-      }
-      if ("id" in canned_query && !(canned_query["id"]).empty) {
-        got.identifier = canned_query["id"].split("%20").join(" ");
-        got.search_text_area ~= "identifier: " ~ got.identifier ~ "\n";
-      }
-      if ("src" in canned_query && !(canned_query["src"]).empty) {
-        got.source = canned_query["src"].split("%20").join(" ");
-        got.search_text_area ~= "source: " ~ got.source ~ "\n";
-      }
-      if ("lng" in canned_query && !(canned_query["lng"]).empty) {
-        got.language = canned_query["lng"].split("%20").join(" ");
-        got.search_text_area ~= "language: " ~ got.language ~ "\n";
-      }
-      if ("rl" in canned_query && !(canned_query["rl"]).empty) {
-        got.relation = canned_query["rl"].split("%20").join(" ");
-        got.search_text_area ~= "relation: " ~ got.relation ~ "\n";
-      }
-      if ("cv" in canned_query && !(canned_query["cv"]).empty) {
-        got.coverage = canned_query["cv"].split("%20").join(" ");
-        got.search_text_area ~= "coverage: " ~ got.coverage ~ "\n";
-      }
-      if ("rgt" in canned_query && !(canned_query["rgt"]).empty) {
-        got.rights = canned_query["rgt"].split("%20").join(" ");
-        got.search_text_area ~= "rights: " ~ got.rights ~ "\n";
-      }
-      if ("cmt" in canned_query && !(canned_query["cmt"]).empty) {
-        got.comment = canned_query["cmt"].split("%20").join(" ");
-        got.search_text_area ~= "comment: " ~ got.comment ~ "\n";
-      }
-      // if ("abstract" in canned_query && !(canned_query["abstract"]).empty) {
-      //   got.abstract = canned_query["abstract"];
-      // }
-      if ("bfn" in canned_query && !(canned_query["bfn"]).empty) { // search_field
-        got.src_filename_base = canned_query["bfn"].split("%20").join(" ");
-        got.search_text_area ~= "src_filename_base: " ~ got.src_filename_base ~ "\n";
-      }
-      if ("sml" in canned_query && !(canned_query["sml"]).empty) {
-        got.sql_match_limit = canned_query["sml"].split("%20").join(" ");
-        // got.search_text_area ~= "sql_match_limit: " ~ got.sql_match_limit ~ "\n";
-      }
-      // cgi.write("f.search_text_area: " ~ got.search_text_area ~ "<br>");
-    }
-    return got;
-  }
-  auto tf = text_fields; //
-  struct SQL_select {
-    string the_body         = "";
-    string the_range        = "";
-  }
-  auto sql_select = SQL_select();
-  string base                  ; // = "";
-  string tip                   ; // = "";
-  string search_note           ; // = "";
-  uint   sql_match_offset_count   = 0;
-  string previous_next () {
-    static struct Rgx {
-      static track_offset = ctRegex!(`(?P<offset_key>[&]smo=)(?P<offset_val>[0-9]+)`, "m");
-    }
-    auto rgx = Rgx();
-    string _previous_next = "";
-    int    _current_offset_value = 0;
-    string _set_offset_next = "";
-    string _set_offset_previous = "";
-    string _url = "";
-    string _url_previous = "";
-    string _url_next = "";
-    string arrow_previous = "";
-    string arrow_next = "";
-    if (environment.get("REQUEST_METHOD", "POST") == "POST") {
-      _url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ tf.canned_query;
-    } else if (environment.get("REQUEST_METHOD", "POST") == "GET") {
-      _url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ environment.get("QUERY_STRING", "");
-    }
-    if (auto m = _url.matchFirst(rgx.track_offset)) {
-      _current_offset_value = m.captures["offset_val"].to!int;
-      _set_offset_next = m.captures["offset_key"] ~ ((m.captures["offset_val"]).to!int + cv.sql_match_limit.to!int).to!string;
-      _url_next = _url.replace(rgx.track_offset, _set_offset_next);
-      if (_current_offset_value < cv.sql_match_limit.to!int) {
-        _url_previous = "";
-      } else {
-        _url_previous = "";
-        _set_offset_previous = m.captures["offset_key"] ~ ((m.captures["offset_val"]).to!int - cv.sql_match_limit.to!int).to!string;
-        _url_previous = _url.replace(rgx.track_offset, _set_offset_previous);
-      }
-    } else {// _current_offset_value = 0;
-      _url_next = _url ~= "&smo=" ~ cv.sql_match_limit.to!string;
-    }
-    if (_url_previous.empty) {
-      arrow_previous = "";
-    } else {
-      arrow_previous =
-        "<font size=\"2\" color=\"#666666\">"
-        ~ "<a href=\""
-        ~ _url_previous
-        ~ "\">"
-        ~ "&lt;&lt prev"
-        ~ "</a> || </font>";
-    }
-    arrow_next =
-      "<font size=\"2\" color=\"#666666\">"
-      ~ "<a href=\""
-      ~ _url_next
-      ~ "\">"
-      ~ "next &gt;&gt"
-      ~ "</a></font>";
-    _previous_next = "<hr>" ~ arrow_previous ~ arrow_next;
-    return _previous_next;
-  }
-  {
-    header = format(q"┃
-<!DOCTYPE html>
-<html>
-<head>
-  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-  <title>
-    SiSU spine search form (sample)
-  </title>
-  <meta name="sourcefile" content="SiSU.sst" />
-  <link rel="generator" href="sisudoc.org" />
-  <link rel="shortcut icon" href="https://%s/image_sys/spine.ico" />
-  <style media = "all">
-   *{
-    padding                  : 0px;
-    margin                   : 2px;
-  }
-  body {
-    height                   : 100vh;
-    background-color         : #FFFFFF;
-  }
-  body {
-    color                    : #000000;
-    background               : #FFFFFF;
-    background-color         : #FFFFFF;
-  }
-  a:link {
-    color                    : #003399;
-    text-decoration          : none;
-  }
-  a:visited {
-    color                    : #003399;
-    text-decoration          : none;
-  }
-  a:hover {
-    color                    : #000000;
-    background-color         : #F9F9AA;
-  }
-  a.lnkocn:link {
-    color                    : #777777;
-    text-decoration          : none;
-  }
-  a.lnkocn:visited {
-    color                    : #32CD32;
-    text-decoration          : none;
-  }
-  a.lnkocn:hover {
-    color                    : #777777;
-    font-size                : 15px;
-  }
-  a:hover img {
-    background-color         : #FFFFFF;
-  }
-  a:active {
-    color                    : #003399;
-    text-decoration          : underline;
-  }
-  hr {
-    width                    : 100%%;
-    margin-left              : 0%%;
-    margin-right             : 0em;
-    margin-top               : 0.5em;
-    margin-bottom            : 0.5em;
-  }
-</style>
-</head>
-<body lang="en" xml:lang="en">
-┃",
-    conf.http_host,
-   );
-  }
-  {
-    table = format(q"┃
-<table summary="band" border="0" cellpadding="2" cellspacing="0">
-<tr><td width="20%%">
- <table summary="home button / home information" border="0" cellpadding="2" cellspacing="0">
- <tr><td align="left">
-  <br /><a href="https://sisudoc.org/" target="_top">
-    <b>SiSU</b>
-  </a>
-  <br /><a href="https://git.sisudoc.org/" target="_top">
-    git
-  </a>
- </td></tr>
- </table>
-</td>
-<td>
-  <label for="find"><b>SiSU spine (generated) search form</b></label>
-</td></tr>
-</table>
-┃");
-  }
-  {
-    string post_value(string field_name, string type="box", string set="on") {
-      string val = "";
-      switch (type) {
-      case "field":
-        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
-          ? cgi.post[field_name]
-          : (field_name in cgi.get)
-            ? cgi.get[field_name]
-            : "");
-        val = tf.search_text_area;
-        break;
-      case "box": // generic for checkbox or radio; checkbox set == "on" radio set == "name set"
-        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
-          ? (cgi.post[field_name]  == set ? "checked" : "off")
-          : (field_name in cgi.get)
-            ? (cgi.get[field_name] == set ? "checked" : "off")
-            :                               "off");
-        break;
-      case "radio": // used generic bo
-        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
-          ? (cgi.post[field_name]  == set ? "checked" : "off")
-          : (field_name in cgi.get)
-            ? (cgi.get[field_name] == set ? "checked" : "off")
-            :                               "checked");
-        break;
-      case "checkbox": // used generic bo
-        val = ((field_name in cgi.post && !(cgi.post[field_name]).empty)
-          ? (cgi.post[field_name]  == set ? "checked" : "off")
-          : (field_name in cgi.get)
-            ? (cgi.get[field_name] == set ? "checked" : "off")
-            :                               "checked");
-        break;
-      default:
-      }
-      return val;
-    }
-    string the_can(string fv) {
-      string show_the_can = post_value("url");
-      string _the_can = "";
-      if (show_the_can == "checked") {
-        tf = text_fields;
-        string method_get_url            = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ environment.get("QUERY_STRING", "");
-        string method_post_url_construct = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ tf.canned_query;
-        // assert(method_get_url == environment.get("HTTP_REFERER", conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ "?" ~ conf.query_string));
-        if (conf.request_method == "POST") {
-          _the_can =
-            "<font size=\"2\" color=\"#666666\">"
-            ~ "POST:&nbsp;"
-            ~ "<a href=\""
-            ~ method_post_url_construct
-            ~ "\">"
-            ~ method_post_url_construct
-            ~ "</a></font>"
-            ~ "<br>";
-        } else if (conf.request_method == "GET") {
-          _the_can =
-            "<font size=\"2\" color=\"#666666\">"
-            ~ "GET:&nbsp;&nbsp;"
-            ~ "<a href=\""
-            ~ method_get_url
-            ~ "\">"
-            ~ method_get_url
-            ~ "</a></font>";
-        }
-        conf.http_url = conf.http_request_type ~ "://" ~ conf.http_host ~ conf.cgi_script ~ tf.canned_query;
-      }
-      return _the_can;
-    }
-    string provide_tip() {
-      string searched_tip = post_value("se");
-      string tip = "";
-      if (searched_tip == "checked") {
-        string search_field = post_value("sf", "field");
-        tf = text_fields;
-        tip = format(q"┃
-<font size="2" color="#666666">
-<b>database:</b> <font size="2" color="#004000">%s</font>; <b>selected view:</b> <font size="2" color="#004000">index</font>
-<b>search string:</b> %s %s %s %s %s %s<br />
-%s %s %s %s %s %s
-</font>
-┃",
-          cv.db_selected,
-          (tf.text.empty   ? "" : "\"text:   <font size=\"2\" color=\"#004000\">" ~ tf.text   ~ "</font>; "),
-          (tf.title.empty  ? "" : "\"title:  <font size=\"2\" color=\"#004000\">" ~ tf.title  ~ "</font>; "),
-          (tf.author.empty ? "" : "\"author: <font size=\"2\" color=\"#004000\">" ~ tf.author ~ "</font>; "),
-          (tf.date.empty   ? "" : "\"date    <font size=\"2\" color=\"#004000\">" ~ tf.date   ~ "</font>; "),
-          (tf.uid.empty    ? "" : "\"uid:    <font size=\"2\" color=\"#004000\">" ~ tf.uid    ~ "</font>; "),
-          (tf.fn.empty     ? "" : "\"fn:     <font size=\"2\" color=\"#004000\">" ~ tf.fn     ~ "</font>; "),
-          (tf.text.empty   ? "" :  "text:    <font size=\"2\" color=\"#004000\">" ~ tf.text   ~ "</font><br />"),
-          (tf.title.empty  ? "" : "title:    <font size=\"2\" color=\"#004000\">" ~ tf.title  ~ "</font><br />"),
-          (tf.author.empty ? "" :  "author:  <font size=\"2\" color=\"#004000\">" ~ tf.author ~ "</font><br />"),
-          (tf.date.empty   ? "" :  "date:    <font size=\"2\" color=\"#004000\">" ~ tf.date   ~ "</font><br />"),
-          (tf.uid.empty    ? "" : "\"uid:    <font size=\"2\" color=\"#004000\">" ~ tf.uid    ~ "</font>; "),
-          (tf.fn.empty     ? "" : "\"fn:     <font size=\"2\" color=\"#004000\">" ~ tf.fn     ~ "</font>; "),
-         );
-      }
-      return tip;
-    }
-    form = format(q"┃
-<form action="%s" id="SubmitForm" method="post" accept-charset="UTF-8">
-  <table cellpadding="2">
-  <tr><td valign=\"top\">
-      <textarea id="find" name="sf" type="text" rows="6" cols="40" maxlength="256" wrap="virtual">%s</textarea>
-  </td>
-  <td valign=\"top\">
-    %s
-    %s
-    %s
-  </td></tr></table>
-  <td valign=\"top\"><tr><td>
-    <font size="2" color="#222222">
-    <b>to search:</b> select which database to search (drop-down menu below); enter your search query (in the form above); and <b>click on the search button</b> (below)
-    <br />
-    <select name="db" size="1">
-      %s
-      <option value="%s">spine</option>
-    </select>
-    <input type="submit" value="SiSU search" />
-    <input type="radio" name="rt" id="results_type_index" value="idx" %s> index
-    <input type="radio" name="rt" id="results_type_text" value="txt" %s> text / grep;
-    match limit:
-    <input type="radio" name="sml" id="sql_match_limit_1000" value="1000" %s> 1,000
-    <input type="radio" name="sml" id="sql_match_limit_2500" value="2500" %s> 2,500
-    <br />
-      <input type="checkbox" name="ec" %s> echo query
-      <input type="checkbox" name="sts" %s> result stats
-      <input type="checkbox" name="url" %s> search url
-      <input type="checkbox" name="se" %s> searched
-      <input type="checkbox" name="tip" %s> available fields
-      <input type="checkbox" name="sql" %s> sql statement
-      <input type="hidden" name="smo" value="0">
-    <br />
-    </font>
-  </td></tr>
-  </table>
-</form>
-┃",
-      "spine-search",
-      (post_value("ec") == "checked") ? post_value("sf", "field") : "",
-      provide_tip,
-      search_note,
-      the_can(post_value("sf", "field")),
-      cv.db_selected,
-      cv.db_selected,
-      post_value("rt",  "box", "idx"),
-      post_value("rt",  "box", "txt"),
-      post_value("sml", "box", "1000"),
-      post_value("sml", "box", "2500"),
-      post_value("ec"),
-      post_value("sts"),
-      post_value("url"),
-      post_value("se"),
-      post_value("tip"),
-      post_value("sql"),
-    );
-    {
-      string set_value(string field_name, string default_val) {
-        string val;
-        if (field_name in cgi.post) {
-          val = cgi.post[field_name];
-        } else if (field_name in cgi.get) {
-          val = cgi.get[field_name];
-        } else { val = default_val; }
-        return val;
-      }
-      bool set_bool(string field_name) {
-        bool val;
-        if (field_name in cgi.post
-        && cgi.post[field_name] == "on") {
-          val = true;
-        } else if (field_name in cgi.get
-        && cgi.get[field_name] == "on") {
-          val = true;
-        } else { val = false; }
-        return val;
-      }
-      cv.db_selected      = set_value("selected_db",      "spine.search.db"); // selected_db == db
-      cv.sql_match_limit  = set_value("sml", "1000");
-      cv.sql_match_offset = set_value("smo", "0");
-      cv.search_text      = set_value("sf",  "test");                         // remove test
-      cv.results_type     = set_value("rt",  "idx");
-      cv.checked_echo     = set_bool("ec");
-      cv.checked_stats    = set_bool("sts");
-      cv.checked_url      = set_bool("url");
-      cv.checked_searched = set_bool("se");
-      cv.checked_tip      = set_bool("tip");
-      cv.checked_sql      = set_bool("sql");
-      tf = text_fields;
-    }
-  }
-  {
-    cgi.write(header);
-    cgi.write(table);
-    cgi.write(form);
-    // cgi.write(previous_next);
-    { // debug environment
-      // foreach (k, d; environment.toAA) {
-      //   cgi.write(k ~ ": " ~ d ~ "<br>");
-      // }
-    }
-    { // debug cgi info
-      // cgi.write("db_selected: "         ~ cv.db_selected ~ "<br>\n");
-      // cgi.write("search_text: "         ~ cv.search_text ~ "<br>\n");
-      // cgi.write("sql_match_limit: "     ~ cv.sql_match_limit ~ ";\n");
-      // cgi.write("sql_match_offset: "    ~ cv.sql_match_offset ~ ";\n");
-      // cgi.write("results_type: "        ~ cv.results_type ~ "<br>\n");
-      // cgi.write("cv.checked_echo: "     ~ (cv.checked_echo ? "checked" : "off") ~ "; \n");
-      // cgi.write("cv.checked_stats: "    ~ (cv.checked_stats ? "checked" : "off") ~ "; \n");
-      // cgi.write("cv.checked_url: "      ~ (cv.checked_url ? "checked" : "off") ~ "; \n");
-      // cgi.write("cv.checked_searched: " ~ (cv.checked_searched ? "checked" : "off") ~ ";<br>\n");
-      // cgi.write("cv.checked_tip: "      ~ (cv.checked_tip ? "checked" : "off") ~ "; \n");
-      // cgi.write("cv.checked_sql: "      ~ (cv.checked_sql ? "checked" : "off") ~ "<br>\n");
-    }
-  }
-  auto db = Database(conf.db_path ~ cv.db_selected);
-  {
-    uint sql_match_offset_counter(T)(T cv) {
-      sql_match_offset_count += cv.sql_match_limit.to!uint;
-      return sql_match_offset_count;
-    }
-    void sql_search_query() {
-      string select_field_like(string db_field, string search_field) {
-        string where_ = "";
-        if (!(search_field.empty)) {
-          string _sf = search_field.strip.split("%20").join(" ");
-          if (_sf.match(r" OR ")) {
-            _sf = _sf.split(" OR ").join("%' OR " ~ db_field ~ " LIKE '%");
-          }
-          if (_sf.match(r" AND ")) {
-            _sf = _sf.split(" AND ").join("%' AND " ~ db_field ~ " LIKE '%");
-          }
-          _sf = "( " ~ db_field ~ " LIKE\n  '%" ~ _sf ~ "%' )";
-          where_ ~= format(q"┃
-  %s
-┃",
-            _sf
-          );
-        }
-        return where_;
-      }
-      string[] _fields;
-      _fields ~= select_field_like("doc_objects.clean",                         tf.text);
-      _fields ~= select_field_like("metadata_and_text.title",                   tf.title);
-      _fields ~= select_field_like("metadata_and_text.creator_author",          tf.author);
-      _fields ~= select_field_like("metadata_and_text.uid",                     tf.uid);
-      _fields ~= select_field_like("metadata_and_text.src_filename_base",       tf.fn);
-      _fields ~= select_field_like("metadata_and_text.src_filename_base",       tf.src_filename_base);
-      _fields ~= select_field_like("metadata_and_text.language_document_char",  tf.language);
-      _fields ~= select_field_like("metadata_and_text.date_published",          tf.date);
-      _fields ~= select_field_like("metadata_and_text.classify_keywords",       tf.keywords);
-      _fields ~= select_field_like("metadata_and_text.classify_topic_register", tf.topic_register);
-      string[] fields;
-      foreach (f; _fields) {
-        if (!(f.empty)) { fields ~= f; }
-      }
-      string fields_str = "";
-      fields_str ~= fields.join(" AND ");
-      sql_select.the_body ~= format(q"┃
-SELECT
-  metadata_and_text.uid,
-  metadata_and_text.title,
-  metadata_and_text.creator_author_last_first,
-  metadata_and_text.creator_author,
-  metadata_and_text.src_filename_base,
-  metadata_and_text.language_document_char,
-  metadata_and_text.date_published,
-  metadata_and_text.classify_keywords,
-  metadata_and_text.classify_topic_register,
-  doc_objects.body,
-  doc_objects.seg_name,
-  doc_objects.ocn,
-  metadata_and_text.uid
-FROM
-  doc_objects,
-  metadata_and_text
-WHERE (
-  %s
-  )
-AND
-  doc_objects.uid_metadata_and_text = metadata_and_text.uid
-ORDER BY
-  metadata_and_text.creator_author_last_first,
-  metadata_and_text.date_published DESC,
-  metadata_and_text.title,
-  metadata_and_text.language_document_char,
-  metadata_and_text.src_filename_base,
-  doc_objects.ocn
-LIMIT %s OFFSET %s
-;┃",
-        fields_str,
-        cv.sql_match_limit,
-        cv.sql_match_offset,
-      );
-      (cv.checked_sql)
-      ? cgi.write(previous_next ~ "<hr><font size=\"2\" color=\"#666666\">" ~ sql_select.the_body.split("\n  ").join(" ").split("\n").join("<br>") ~ "</font>\n")
-      : "";
-      cgi.write(previous_next);
-      auto select_query_results = db.execute(sql_select.the_body).cached;
-      string _old_uid = "";
-      if (!select_query_results.empty) {
-        foreach (row; select_query_results) {
-          if (row["uid"].as!string != _old_uid) {
-            _old_uid = row["uid"].as!string;
-            auto m = (row["date_published"].as!string).match(regex(r"^([0-9]{4})")); // breaks if row missing or no match?
-            cgi.write(
-              "<hr><a href=\""
-                ~ "https://" ~ conf.http_host ~ "/"
-                ~ row["language_document_char"].as!string ~ "/html/"
-                ~ row["src_filename_base"].as!string ~ "/"
-                ~ "toc.html"
-              ~ "\">\""
-                ~ row["title"].as!string ~ "\""
-              ~ "</a> ("
-              ~ m.hit
-              ~ ") "
-              ~ "["
-              ~ row["language_document_char"].as!string
-              ~ "] "
-              ~ row["creator_author_last_first"].as!string
-              ~ ":<br>\n"
-            );
-          }
-          if (cv.results_type == "txt") {
-            cgi.write(
-              "<hr><a href=\""
-                ~ "https://" ~ conf.http_host ~ "/"
-                ~ row["language_document_char"].as!string ~ "/html/"
-                ~ row["src_filename_base"].as!string ~ "/"
-                ~ row["seg_name"].as!string ~ ".html#" ~ row["ocn"].as!string
-              ~ "\">"
-                ~ row["ocn"].as!string
-              ~ "</a>"
-              ~ "<br>"
-              ~ row["body"].as!string
-            );
-          } else {
-            cgi.write(
-              "<a href=\""
-                ~ "https://" ~ conf.http_host ~ "/"
-                ~ row["language_document_char"].as!string ~ "/html/"
-                ~ row["src_filename_base"].as!string ~ "/"
-                ~ row["seg_name"].as!string ~ ".html#" ~ row["ocn"].as!string
-              ~ "\">"
-                ~ row["ocn"].as!string
-              ~ "</a>, "
-            );
-          }
-        }
-        cgi.write( previous_next);
-      } else { // offset_not_beyond_limit = false;
-        cgi.write("select_query_results empty<p>\n");
-      }
-    }
-    sql_search_query;
-  }
-  {
-    db.close;
-  }
-  {
-    string tail = format(q"┃
-</body>
-┃");
-    cgi.write(tail);
-  }
-}
-mixin GenericMain!cgi_function_intro;