82 lines
1.7 KiB
Text
82 lines
1.7 KiB
Text
edit:add-var pdf2grey~ [@argv]{
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use re
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use str
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var m = [
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&nb=$false
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&split=50
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]
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fn _help []{
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echo 'Usage: pdf2gray [-hn (<n>)] <input>.pdf <output>.pdf'
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echo ''
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echo 'Options:'
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echo ' -h Affiche cette aide'
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echo ' -n [0-100] Convertit en noir et blanc. Si un nombre est spécifié, indique le pourcentage de coupure (par défaut: 50)'
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}
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fn is_pdf [e]{
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re:match '.*\.pdf$' $e
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}
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fn is_int [e]{
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re:match '^\d+$' $e
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}
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fn is_split [e]{
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and (>= $e 0) (<= $e 100)
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}
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while (> (count $argv) 0) {
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var e @argv = $@argv
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if (or (eq $e '-h') (eq $e '--help')) {
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_help
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return
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} elif (eq $e -n) {
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m[nb] = $true
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if (== (count $e) 0) {
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echo 'Il manque des arguments après -s'
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_help
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return
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} elif (is_int $argv[0]) {
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e @argv = $@argv
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if (is_split $e) {
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m[split] = $e
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} else {
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echo 'L’argument (optionnel) après -s doit être compris entre 0 et 100'
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_help
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return
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}
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}
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} elif (not (is_pdf $e)) {
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echo 'Argument non reconnu: '$e
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_help
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return
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} elif (not (has-key $m input)) {
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m[input] = $e
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} else {
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m[output] = $e
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if (> (count $argv) 0) {
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echo 'Trop d’arguments: '$@argv
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_help
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return
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}
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}
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}
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if (not (has-key $m input)) {
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echo 'Manque le input'
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_help
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return
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} elif (not (has-key $m output)) {
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echo 'Manque le output'
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_help
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return
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}
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var params = [-colorspace gray]
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if $m[nb] {
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@params = (all $params) -threshold $m[split]'%'
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}
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@params = $@params $m[input] $m[output]
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echo 'Commande: convert '(str:join ' ' $params)
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convert $@params
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var
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