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#!/usr/bin/bash
# convert USA local call NXX list from http://localcallingguide.com/
# to HylaFax+ dialrules
set -u
set -e
if [ -z "${1:-}" ]; then
echo "Usage: $(basename "$0") nnx.txt > nnxmytown.txt"
echo "Create nnx.txt from local nnx listing at"
echo "http://localcallingguide.com/"
echo "Search, Area Code/Prefix, ..., ..., Local prefixes"
exit 1
fi
message='! local NNX list generated by localnxxtoregex.sh from Arch Linux HylaFax+ package'
_fn_display() {
if [ ! -z "${nx}" ]; then
if [ ! -z "${message}" ]; then
echo "${message}"
message=''
fi
local tx
if [ "${#x}" -gt 1 ]; then
x="[${x}]"
tx="(${nx}${x})"
else
tx="(${nx}${x})\t" # keep tabs lined up
fi
local _tx="(${nx}${x})"
echo -e '^${Country}${Area}'"${tx}\t= \1\t\t! USA NNX/NXX local ${npas[2]} calls"
nx=''
x=''
fi
}
readarray -t npalist < <(grep '^[0-9]' "$1" | LC_ALL=C sort)
#declare -p npalist
nx=''
x=''
# 555 & 556 will be coalesced into 55[56]
#NPA;NXX;Rate Centre;Region;Plan Type;Call Type;Monthly Limit;Note;Effective
#517;555;Operator;MI;;;;;
#517;556;Operator;MI;;;;;
#517;560;Operator;MI;;;;;
#517;570;Operator;MI;;;;;
for npaline in "${npalist[@]}"; do
IFS=';' read -r -a npas <<<"${npaline}"
nnx="${npas[1]}"
if [ "${nnx#${nx}}" = "${nnx}" ]; then
_fn_display
nx="${nnx: 0:2}"
x="${nnx: 2:1}"
else
x+="${nnx: 2:1}"
fi
done
_fn_display
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