462 lines
14 KiB
Plaintext
462 lines
14 KiB
Plaintext
edit:add-var pdf~ {|action @args|
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use math
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use path
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use re
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use str
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use framagit.org/benjamin.vaudour/elv-lib/mods/common
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use framagit.org/benjamin.vaudour/elv-lib/mods/format
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use framagit.org/benjamin.vaudour/elv-lib/mods/map
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use framagit.org/benjamin.vaudour/elv-lib/mods/pdf
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var -c~ = $common:cexec~
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var -cc~ = {|c f1| -c $c $f1 $nop~}
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fn must-pdf {|file| -cc (not (pdf:is-pdf $file)) { fail (printf '%s n’est pas un fichier pdf' $file) }}
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fn must-exist {|file| -cc (pdf:not-exist $file) { fail (printf '%s n’existe pas' $file) }}
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fn must-not-exist {|file| -cc (pdf:exist $file) { fail (printf '%s existe déjà' $file) }}
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fn must-pdf-exist {|file|
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must-pdf $file
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must-exist $file
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}
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fn must-pdf-not-exist {|file|
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must-pdf $file
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must-not-exist $file
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}
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fn must-valid {|v cond| -cc (not ($cond $v)) { fail (printf '%s: paramètre invalide' $v) }}
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fn out {|in suffix|
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var out = (str:trim-suffix $in .pdf)
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str:join '' [ $out $suffix ]
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}
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fn help {|@args| cat $E:HOME/.config/elvish/aliases/pdf.help}
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fn decrypt {|@args|
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var l = (count $args)
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-cc (or (< $l 1) (> $l 3)) { fail 'decrypt doit contenir entre 1 et 3 paramètres' }
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var in = $args[0]
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var out = (out $in _decrypted.pdf)
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var passwd = []
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must-pdf-exist $in
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if (> $l 1) {
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set @passwd = $args[1]
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if (> $l 2) {
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set out = $args[2]
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}
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}
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must-pdf-not-exist $out
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pdf:decrypt &out=$out $in $@passwd
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}
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fn rotate {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'rotate doit contenir au moins 1 paramètres' }
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var in = $args[0]
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var out = (out $in _rotated.pdf)
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if (pdf:is-pdf $args[$l]) {
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set @args out = (all $args[1..])
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}
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must-pdf-exist $in
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must-pdf-not-exist $out
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each {|e|
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must-valid $e $pdf:is-rotate-selection~
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} $args
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pdf:rotate &keep=$true &out=$out $in $@args
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}
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fn merge {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'merge doit contenir au moins 2 paramètres' }
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var @selection out = $@args
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must-pdf-not-exist $out
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var has-in = $false
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each {|e|
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if (pdf:is-pdf $e) {
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must-exist $e
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set has-in = $true
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} else {
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-cc (not $has-in) { fail 'Une sélection doit être précédée d’un fichier d’entrée' }
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must-valid $e $pdf:is-selection~
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}
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} $selection
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pdf:cat &out=$out $@selection
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}
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fn unmerge {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'unmerge doit contenir au moins 2 paramètres' }
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var in = $args[0]
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var out = (out $in _unmerged)
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if (not (pdf:is-selection $args[$l])) {
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set @args out = (all $args[1..])
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}
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must-pdf-exist $in
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must-not-exist $out
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each {|e|
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must-valid $e $pdf:is-selection~
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} $args
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pdf:uncat $in $out $@args
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}
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fn split {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'split doit contenir au moins 2 paramètres' }
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var out = $args[$l]
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set args = $args[..$l]
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must-not-exist $out
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var s = 1
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if (pdf:is-number $args[0]) {
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set s @args = $@args
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}
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var t = (pdf:-t)
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try {
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pdf:cat &out=$t $@args
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pdf:split &size=$s $t $out
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} finally {
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rm -f $t
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}
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}
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fn split-at {|@args|
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var l = (count $args)
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-cc (!= $l 3) { fail 'split-at doit contenir 3 paramètres' }
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var rg in out = $@args
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must-pdf-exist $in
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must-not-exist $out
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must-valid $rg {|e| re:match '^\d+(,\d+)*$' $e }
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var b sel = 1 []
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str:split ',' $rg | order | each {|s|
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var e = (- $s 1)
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if (== $b $e) {
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set @sel = $@sel $b
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set b = $s
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} elif (< $b $e) {
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set @sel = $@sel (printf '%d-%d' $b $e)
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set b = $s
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}
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}
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set @sel = $@sel (printf '%d-z' $b)
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unmerge $in $@sel $out
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}
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fn zip {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'zip doit contenir au moins 2 paramètres' }
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var @selection out = $@args
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must-pdf-not-exist $out
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var has-in = $false
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each {|e|
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if (pdf:is-pdf $e) {
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must-exist $e
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set has-in = $true
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} else {
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-cc (not $has-in) { fail 'Une sélection doit être précédée d’un fichier d’entrée' }
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must-valid $e $pdf:is-selection~
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}
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} $selection
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pdf:cat &collate=$true &out=$out $@selection
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}
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fn unzip {|@args|
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var l = (- (count $args) 1)
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-cc (< $l 1) { fail 'unzip doit contenir au moins 2 paramètres' }
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var in @sel out = $@args
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var mod = 2
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if (pdf:is-number $in) {
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set mod = $in
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-cc (eq (count $sel) 0) { fail 'unzip doit contenir au moins 3 paramètres' }
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set in @sel = $@sel
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}
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must-not-exist $out
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var t = (pdf:-t)
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try {
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pdf:cat &out=$t $in $@sel
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var n = (pdf:nb-pages $t)
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mkdir $out
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range 1 (+ 1 $mod) | each {|m|
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var sel = (range 1 (+ $n 1) | each {|i|
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var s = (% $i $mod)
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-cc (== $s 0) { set s = $mod }
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-cc (== $s $m) $i
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} | each $to-string~ | str:join ',')
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pdf:cat &out=(printf '%s/%d.pdf' $out $m) $t $sel
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}
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} finally {
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rm -f $t
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}
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}
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fn pts2cm {|v| / (math:round (* $v 3.52778)) 100}
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fn -date {|raw|
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var y m d = $raw[2..6] $raw[6..8] $raw[8..10]
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var h n s = $raw[10..12] $raw[12..14] $raw[14..16]
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var rest = []
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-cc (> (count $raw[16..]) 0) { set @rest = (str:split "'" $raw[16..]) }
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var tz = '+00:00'
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if (> (count $rest) 0) {
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var tz = $rest[0]
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-cc (eq $tz[0] 'Z') { set tz = $tz[1..] }
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-cc (eq $tz '') { set tz = '00' }
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-cc (and (not-eq $tz[0] '+') (not-eq $tz[0] '-')) { set tz = (printf '+%s' $tz) }
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var mm = '00'
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-cc (and (> (count $rest) 1) (pdf:is-number $rest[1])) { set mm = $rest[1] }
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set tz = (printf '%s:%s' $tz $mm)
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}
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var date = (printf ^
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'%s-%s-%sT%s:%s:%sZ%s' ^
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$y $m $d ^
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$h $n $s ^
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$tz)
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date --date $date
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}
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fn info {|@args|
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-cc (!= (count $args) 1) { fail 'info doit contenir un paramètre' }
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var in @_ = $@args
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must-pdf-exist $in
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var json = (pdf:json $in)
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var objects = $json[objects]
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var trailer = $objects[trailer]
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var infos = $objects[$trailer[/Info]]
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var pages = $json[pages]
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var p1 = $objects[$pages[0][object]]
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var w h = (all $p1[/MediaBox][2..] | each $pts2cm~)
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var layout = (-c (> $w $h) 'Paysage' 'Portrait')
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var title = (map:value-of $infos '/Title')
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var subject = (map:value-of $infos '/Subject')
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var author = (map:value-of $infos '/Author')
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var creator = (map:value-of $infos '/Creator')
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var producer = (map:value-of $infos '/Producer')
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var mdate = (-c (has-key $infos '/ModDate') { -date $infos[/ModDate] } '')
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var crypted = (-c (pdf:encryption $in)[encrypted] 'Oui' 'Non')
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var hasform = ( -c (pdf:form $in)[hasacroform] 'Oui' 'Non')
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var data = [
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[&k='Chemin' &v=(path:abs $in)]
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[&k='Taille' &v=(format:size (stat -c '%s' $in))]
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[&k='Version PDF' &v=(pdf:version $in)]
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[&k='Nombre de pages' &v=(count $pages)]
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[&k='Format des pages' &v=(printf '%sx%s cm (%s)' $w $h $layout)]
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[&k='Titre' &v=$title]
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[&k='Subjet' &v=$subject]
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[&k='Auteur' &v=$author]
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[&k='Créateur' &v=$creator]
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[&k='producteur' &v=$producer]
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[&k='Date de création' &v=(-date $infos[/CreationDate])]
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[&k='Date de modification' &v=$mdate]
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[&k='Chiffré' &v=$crypted]
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[&k='Acroform' &v=$hasform]
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]
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var label = (format:repeat 21 ' ')
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var @props = (format:column &align=right k $label) (format:column v $label)
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set props = (format:update-props $props $data)
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var sep = (format:repeat (+ $props[0][size] $props[1][size] 3) '.')
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var @part = $data[..5] $data[5..12] $data[12..]
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each {|d|
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format:list &with-header=$false &csep=' : ' &recompute=$false $props $@d
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echo $sep
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} $part
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}
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fn list-attachments {|in| all (pdf:attachments $in)}
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fn display-attachments {|in|
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var @data = (list-attachments $in)
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printf "%d pièce(s)-jointe(s) trouvée(s):\n\n" (count $data)
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each $echo~ $data
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echo
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}
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fn extract-attachments {|in out| list-attachments $in | each {|f| pdf:attachment $in $out/$f $f }}
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fn list-fonts {|in|
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pdf:fonts $in | each {|f|
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-cc (has-key $f /FontDescriptor) { put [&font=$f &fd=$f[/FontDescriptor]] }
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} | each {|f|
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-cc (has-key $f[fd] /FontName) { assoc $f name $f[fd][/FontName] }
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} | each {|f|
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var @_ n = (str:split '+' $f[name])
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var font = $f[font]
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var fd = $f[fd]
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var embed = (has-key $fd /FontFile2)
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var file = (-c $embed $fd[/FontFile2] '')
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set n = (str:trim-prefix $n '/')
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put [
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&id=$font[id]
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&name=$n
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&embed=$embed
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&file=$file
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&type=(str:trim-prefix $font[/Subtype] '/')
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&encoding=(str:trim-prefix $font[/Encoding] '/')
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]
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}
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}
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fn display-fonts {|in|
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var @data = (list-fonts $in)
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printf "%d police(s) trouvée(s):\n\n" (count $data)
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var props = [
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(format:column &align=center id ID)
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(format:column name Nom)
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(format:column type Type)
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(format:column encoding Encodage)
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(format:column &align=center embed Téléchargeable)
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(format:column &align=center file Fichier)
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]
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format:list $props $@data
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echo
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}
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fn extract-fonts {|in out|
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list-fonts $in | each {|f|
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-cc $f[embed] { pdf:filtered-stream $in (printf '%s/%s.ttf' $out $f[name]) $f[file] }
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}
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}
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fn list-images {|in|
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pdf:images $in | each {|i|
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var w = (format:int $i[/Width])
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var h = (format:int $i[/Height])
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var c = (-c (has-key $i /ColorSpace) { put $i[/ColorSpace][0] } '')
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put [
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&id=$i[id]
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&page=(format:int $i[page])
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&name=(str:trim-prefix $i[name] '/')
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&width=$w
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&height=$h
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&dim=(printf '%dx%d' $w $h)
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&filter=(str:trim-prefix $i[/Filter] '/')
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&size=(format:size $i[/Length])
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&bpc=(format:int $i[/BitsPerComponent])
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&color=(str:trim-prefix $c '/')
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]
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}
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var objects = (pdf:objects $in)
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all (pdf:pages $in) | each {|p|
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var pn = (format:int $p[pageposfrom1])
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all $p[images] | each {|img|
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var id = $img[object]
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var o = (pdf:-object &extend=$true $objects $id)
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var s = $o[/Length]
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var c = (-c (has-key $o /ColorSpace) { put $o[/ColorSpace][0] } '')
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var w = (format:int $o[/Width])
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var h = (format:int $o[/Height])
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put [
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&id=$id
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&page=$pn
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&name=(str:trim-prefix $img[name] '/')
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&width=$w
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&height=$h
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&dim=(printf '%dx%d' $w $h)
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&filter=(str:trim-prefix $o[/Filter] '/')
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&size=(format:size $s)
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&bpc=(format:int $o[/BitsPerComponent])
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&color=(str:trim-prefix $c '/')
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]
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}
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}
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}
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fn display-images {|in|
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var @data = (list-images $in)
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printf "%d image(s) trouvée(s):\n\n" (count $data)
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var props = [
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(format:column &align=right page Page)
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(format:column &align=center id ID)
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(format:column name Nom)
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(format:column &align=right size Taille)
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(format:column &align=right dim Dimensions)
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(format:column color Couleur)
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(format:column &align=right bpc BPC)
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(format:column &align=center filter Filtre)
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]
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format:list $props $@data
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echo
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}
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fn extract-images {|in out|
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# En attendant de savoir décoder correctement les images, on utilise poppler
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pdfimages -all $in $out/Im
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}
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fn list {|@args|
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-cc (!= (count $args) 2) { fail 'list doit comporter 2 paramètres' }
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var types in = $@args
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must-pdf-exist $in
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var display = [
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&a=$display-attachments~
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&f=$display-fonts~
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&i=$display-images~
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]
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str:split ',' $types | each {|t|
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set t = (str:to-lower $t)
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must-valid $t {|e| and (> (count $e) 0) (has-key $display $e[0])}
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$display[$t[0]] $in
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}
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}
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fn extract {|@args|
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-cc (!= (count $args) 3) { fail 'extract doit comporter 3 paramètres' }
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var types in out = $@args
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must-pdf-exist $in
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must-not-exist $out
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var extr = [
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&a=$extract-attachments~
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&f=$extract-fonts~
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&i=$extract-images~
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]
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try {
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mkdir $out
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str:split ',' $types | each {|t|
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set t = (str:to-lower $t)
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must-valid $t {|e| and (> (count $e) 0) (has-key $extr $e[0])}
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$extr[$t[0]] $in $out
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}
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} catch e {
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rm -rf $out
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fail $e
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}
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}
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fn gray {|@args|
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-cc (!= (count $args) 2) { fail 'gray doit comporter 2 paramètres' }
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var in out = $@args
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must-pdf-exist $in
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must-pdf-not-exist $out
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convert -colorspace gray $in $out
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}
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fn mono {|@args|
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var c = (count $args)
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-cc (or (< $c 2) (> $c 3)) { fail 'mono doit comporter entre 2 et 3 paramètres' }
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var t = $nil
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if (pdf:is-number $args[0]) {
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set t @args = $@args
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-cc (or (< $t 0) (> $t 100)) { fail le taux doit être compris entre 0 et 100 }
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-cc (< $c 2) { fail 'mono doit comporter 3 paramètres' }
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}
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var in out = $@args
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must-pdf-exist $in
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must-pdf-not-exist $out
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if $t {
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convert -colorspace gray -threshold $t'%' $in $out
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} else {
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convert -monochrome $in $out
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}
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}
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var actions = [
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&help=$help~
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&decrypt=$decrypt~
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&rotate=$rotate~
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&merge=$merge~
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&cat=$merge~
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&unmerge=$unmerge~
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&uncat=$unmerge~
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&split=$split~
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&split-at=$split-at~
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&cut=$split-at~
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&zip=$zip~
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&unzip=$unzip~
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&info=$info~
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&list=$list~
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&extract=$extract~
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&gray=$gray~
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&mono=$mono~
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#&compress=$compress~
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]
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-cc (not (has-key $actions $action)) { fail (printf '%s: action inconnue' $action) }
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||
$actions[$action] $@args
|
||
}
|