New plugin datatype/number.

Additional number conversion&handling methods.

plugins/datatype/number

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+
+################################################################################
+#                                         
+# |              |    |         |         
+# |---.,---.,---.|---.|    ,---.|--- ,---.
+# |   |,---|`---.|   ||    |---'|    `---.
+# `---'`---^`---'`   '`---'`---'`---'`---'
+#
+#                                        
+# Bashlets -- A modular extensible toolbox for Bash
+#
+# Copyright (c) 2014-6 Roberto Reale
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+################################################################################
+
+
+#@method
+function bashlet_datatype_number_to_roman()
+{
+    ########################################################################
+    #
+    # Code borrowed from:
+    #
+    # roman - convert number (1-9999) to Roman numeral
+    # cf. https://gist.github.com/ldante86/7816b0750b80df06527a9799a40b4b02
+    #
+    # Copyright (C) 2014 Luciano D. Cecere <ldante86@aol.com>
+    #
+    # This program is free software: you can redistribute it and/or modify
+    # it under the terms of the GNU 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 <http://www.gnu.org/licenses/>.
+    #
+    #########################################################################
+
+    declare -a base=(I II III IV V VI VII VIII IX)
+    declare -a tens=(X XX XXX XL L LX LXX LXXX XC)
+    declare -a hundreds=(C CC CCC CD D DC DCC DCCC CM)
+    declare -a thousands=(M MM MMM ^IV ^V ^VI ^VII ^VIII ^IX)
+
+    local input
+
+    case "$1" in
+      [1-9]|[1-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9])
+          input="$1" ;;
+      *)
+          # TODO echo "Out of range [1-9999]"
+          return 1
+    esac
+
+    local subst_0=${input:0:1}
+    local subst_1=${input:1:1}
+    local subst_2=${input:2:1}
+    local subst_3=${input:3:1}
+
+    local base_0=${base[subst_0-1]}
+    local base_1=${base[subst_1-1]}
+    local base_2=${base[subst_2-1]}
+    local base_3=${base[subst_3-1]}
+    local tens_0=${tens[subst_0-1]}
+    local tens_1=${tens[subst_1-1]}
+    local tens_2=${tens[subst_2-1]}
+    local hundreds_0=${hundreds[subst_0-1]}
+    local hundreds_1=${hundreds[subst_1-1]}
+    local thousands_0=${thousands[subst_0-1]}
+
+    case ${#input} in
+      1)  echo $base_0
+          ;;
+      2)  [ $subst_1 -eq 0 ] && echo $tens_0
+          [ $subst_1 -gt 0 ] && echo $tens_0$base_1
+          ;;
+      3)  [ $subst_1 -eq 0 -a $subst_2 -eq 0 ] && echo $hundreds_0
+          [ $subst_1 -gt 0 -a $subst_2 -eq 0 ] && echo $hundreds_0$tens_1
+          [ $subst_1 -eq 0 -a $subst_2 -gt 0 ] && echo $hundreds_0$base_2
+          [ $subst_1 -gt 0 -a $subst_2 -gt 0 ] && echo $hundreds_0$tens_1$base_2
+          ;;
+      4)  [ $subst_1 -eq 0 -a $subst_2 -eq 0 -a $subst_3 -eq 0 ] && echo $thousands_0
+          [ $subst_1 -eq 0 -a $subst_2 -eq 0 -a $subst_3 -gt 0 ] && echo $thousands_0$base_3
+          [ $subst_1 -eq 0 -a $subst_2 -gt 0 -a $subst_3 -eq 0 ] && echo $thousands_0$tens_2
+          [ $subst_1 -eq 0 -a $subst_2 -gt 0 -a $subst_3 -gt 0 ] && echo $thousands_0$tens_2$base_3
+          [ $subst_1 -gt 0 -a $subst_2 -eq 0 -a $subst_3 -eq 0 ] && echo $thousands_0$hundreds_1
+          [ $subst_1 -gt 0 -a $subst_2 -eq 0 -a $subst_3 -gt 0 ] && echo $thousands_0$hundreds_1$base_3
+          [ $subst_1 -gt 0 -a $subst_2 -gt 0 -a $subst_3 -eq 0 ] && echo $thousands_0$hundreds_1$tens_2
+          [ $subst_1 -gt 0 -a $subst_2 -gt 0 -a $subst_3 -gt 0 ] && echo $thousands_0$hundreds_1$tens_2$base_3
+    esac
+}
+
+# Local variables:
+# mode: shell-script
+# sh-basic-offset: 4
+# sh-indent-comment: t
+# indent-tabs-mode: nil
+# End:
+# ex: ts=4 sw=4 et filetype=sh