From: Paul Hänsch <paul@plutz.net>
Date: Thu, 22 Feb 2024 16:54:52 +0000 (+0100)
Subject: Merge commit '8a7abfd24c55754dc0ee886cbece67cd3afc585c'
X-Git-Url: https://git.plutz.net/?p=shellwiki;a=commitdiff_plain;h=b25024386a4a3ab856dc73707119bd6e50b2da34

Merge commit '8a7abfd24c55754dc0ee886cbece67cd3afc585c'
---

b25024386a4a3ab856dc73707119bd6e50b2da34
diff --cc cgilite/db23.sh
index 0000000,0000000..a3a25bb
new file mode 100755
--- /dev/null
+++ b/cgilite/db23.sh
@@@ -1,0 -1,0 +1,114 @@@
++#!/bin/sh
++
++# Copyright 2023, 2024 Paul Hänsch
++# 
++# Permission to use, copy, modify, and/or distribute this software for any
++# purpose with or without fee is hereby granted, provided that the above
++# copyright notice and this permission notice appear in all copies.
++# 
++# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
++# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
++# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
++# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
++# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
++# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
++# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
++
++[ -n "$include_db23" ] && return 0
++include_db23="$0"
++
++. "$_EXEC/cgilite/storage.sh"
++
++DB2() {
++  local call data file key val seq
++  data="${BR}${1}${BR}" call="$2"
++  shift 2
++
++  case $call in
++    new|discard)
++      printf ''
++      ;;
++    open|load) file="$1"
++      cat "$file" || return 1
++      ;;
++    check|contains) key="$(STRING "$1")" val=''
++      val="${data##*"${BR}${key}"	}" val="${val%%"${BR}"*}"
++      [ "$val" = '' ] && return 1
++      ;;
++    count) key="$(STRING "$1")" val='' seq=0
++      val="${data##*"${BR}${key}"	}" val="${val%%"${BR}"*}"
++      [ "$val" = '' ] || val="${val}	"
++      while [ "$val" != '' ]; do
++        seq=$((seq + 1)) val="${val#*	}"
++      done
++      printf "%i\n" "$seq"
++      [ $seq = 0 ] && return 1
++      ;;
++    get) key="$(STRING "$1")" seq="${2:-1}"
++      val="${data##*"${BR}${key}"	}" val="${val%%"${BR}"*}"
++      [ "$val" = '' ] && return 1 || val="${val}	"
++      while [ $seq -gt 1 ]; do
++        seq=$((seq - 1)) val="${val#*	}"
++      done
++      [ "$val" = '' ] && return 1
++      UNSTRING "${val%%	*}"
++      ;;
++    iterate|raw) key="$(STRING "$1")"
++      val="${data##*"${BR}${key}"	}" val="${val%%"${BR}"*}"
++      [ "$val" = '' ] && return 1
++      printf '%s\n' $val
++      ;;
++    delete|remove) key="$(STRING "$1")"
++      val="${data#*"${BR}${key}"	*"${BR}"}"
++      key="${data%"${BR}${key}"	*"${BR}"*}"
++      [ "${key}${BR}${val}" = "${data}" ] && return 1
++      printf '%s' "${key#"${BR}"}${BR}${val%"${BR}"}"
++      ;;
++    set|store) key="$(STRING "$1")" val=""
++      shift 1
++      val="$(for v in "$@"; do STRING "$v"; printf \\t; done)"
++      if [ "${data#*"${BR}${key}"	*}" != "$data" ]; then
++        data="${data%"${BR}${key}"	*"${BR}"*}${BR}${key}	${val%	}${BR}${data#*"${BR}${key}"	*"${BR}"}"
++        data="${data#"${BR}"}" data="${data%"${BR}"}"
++      else
++        data="${data#"${BR}"}${key}	${val%	}${BR}"
++        data="${data#"${BR}"}"
++      fi
++      printf %s\\n "${data}"
++      ;;
++    append) key="$(STRING "$1")" val=""
++      val="${data##*"${BR}${key}"	}" val="${val%%"${BR}"*}"
++      if [ "$val" = '' ]; then
++        printf %s\\n "${data}"
++        return 1
++      else
++        shift 1
++        val="${val}$(for v in "$@"; do printf \\t; STRING "$v"; done)"
++        data="${data%"${BR}${key}"	*"${BR}"*}${BR}${key}	${val%	}${BR}${data#*"${BR}${key}"	*"${BR}"}"
++        data="${data#"${BR}"}" data="${data%"${BR}"}"
++        printf %s\\n "${data}"
++      fi
++      ;;
++    flush|save|write) file="$1"
++      data="${data#"${BR}"}" data="${data%"${BR}"}"
++      printf '%s\n' "$data" >"$file" || return 1
++      ;;
++  esac
++  return 0
++}
++
++DB3() {
++  # wrapper function that allows easyer use of DB2
++  # by always keeping file data in $db3_data
++
++  case "$1" in
++    new|discard|open|load|delete|remove|set|store|append)
++      db3_data="$(DB2 "$db3_data" "$@")"
++      return "$?"
++      ;;
++    get|count|check|contains|iterate|raw|flush|save|write)
++      DB2 "$db3_data" "$@"
++      return "$?"
++      ;;
++  esac
++}