74 lines
1.9 KiB
Plaintext
74 lines
1.9 KiB
Plaintext
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#!/bin/bash
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# -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
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source "$(dirname -- "$0")/lib/ulib/auto" || exit 1
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function display_help() {
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uecho "$scriptname: modifier en masse un ensemble de valeurs numériques contigües dans un fichier
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USAGE
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$scriptname FILE FROMmin-FROMmax TO
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remplacer les nombres de FROMmin à FROMmax par leur valeur correspondante,
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sachant que FROMmin doit être remplacé par TO. On peut mentionner autant de
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couples (FROM, TO) que nécessaire: ils seront traités dans l'ordre
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OPTIONS
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-n, --fake
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Afficher le fichier tel qu'il serait modifié au lieu de le modifier en
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place"
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}
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fake=
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args=(
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--help '$exit_with display_help'
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-n,--fake fake=1
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)
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parse_args "$@"; set -- "${args[@]}"
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file="$1"; shift
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[ -n "$file" ] || die "vous devez spécifier le fichier à modifier"
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seds=
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while [ $# -ge 2 ]; do
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from="$1"
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if [[ "$from" == *-* ]]; then
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let fromb="${from%-*}"
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let frome="${from#*-}"
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else
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let fromb="$from"
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let frome="$from"
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fi
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let to="$2"; shift 2
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if [ "$to" -eq "$fromb" ]; then
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einfo "$fromb --> $to aucune modification n'est nécessaire"
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elif [ "$to" -lt "$fromb" ]; then
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einfo "$fromb-$frome --> $to-$((to+frome-fromb))"
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let from=fromb
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while [ "$from" -le "$frome" ]; do
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seds="$seds${seds:+; }s/$from/$to/g"
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let from=from+1
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let to=to+1
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done
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elif [ "$to" -gt "$fromb" ]; then
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einfo "$frome-$fromb --> $((to+frome-fromb))-$to"
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let from=frome
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let to=to+frome-fromb
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while [ "$from" -ge "$fromb" ]; do
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seds="$seds${seds:+; }s/$from/$to/g"
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let from=from-1
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let to=to-1
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done
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fi
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done
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edebug "Script sed: $seds"
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[ -n "$fake" ] && args=() || args=(-i)
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args+=("$seds" "$file")
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sed "${args[@]}"
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