From: Paul Hänsch <paul@plutz.net>
Date: Wed, 15 May 2024 14:37:59 +0000 (+0200)
Subject: date time helper
X-Git-Url: https://git.plutz.net/?p=confetti;a=commitdiff_plain;h=refs%2Fheads%2Fmaster;hp=6e7496f7d5f9d5804ff071a53da789ca5ef9d4ba

date time helper
---

diff --git a/cards/l10n.sh b/cards/l10n.sh
index 2d9dc06..fde98e0 100755
--- a/cards/l10n.sh
+++ b/cards/l10n.sh
@@ -37,6 +37,7 @@ l10n(){
     X-ZACK-LEAVEDATE) printf %s "Abmelde&shy;datum";;
     X-ZACK-JOINDATE_short)  printf %s "Anm.";;
     X-ZACK-LEAVEDATE_short) printf %s "Abm.";;
+    X-IBAN) printf %s "IBAN";;
 
     *) l10n_global "$word";;
   esac
diff --git a/cards/list.sh b/cards/list.sh
index 519005c..e12d760 100755
--- a/cards/list.sh
+++ b/cards/list.sh
@@ -31,7 +31,10 @@ edit_card(){
 	    [ $(pdi_count "$card" IMPP) -gt 0 ] && edit_item "$card" IMPP
 	    [ $(pdi_count "$card" URL ) -gt 0 ] && edit_item "$card" URL
 	  )]
-	  [div .section .address $(edit_item "$card" ADR)]
+	  [div .section .address $(
+	    edit_item "$card" ADR
+	    [ $(pdi_count "$card" X-IBAN) -gt 0 ] && edit_item "$card" X-IBAN
+	  )]
 	  [div .section .note    $(edit_item "$card" NOTE)]
 	  [div .section .attendance
 	    [h3 $(l10n course_attendance) ] [div .attendance $(
@@ -65,7 +68,7 @@ edit_card(){
             [div .item .newfield
               [select name="newfield"
 	        [option value="" disabled="disabled" selected="selected" $(l10n edit_addfieldtext)]
-	        $(for f in NICKNAME EMAIL TEL IMPP ADR URL NOTE X-ZACK-LEAVEDATE; do
+	        $(for f in NICKNAME EMAIL TEL IMPP ADR URL NOTE X-ZACK-LEAVEDATE X-IBAN; do
 	          printf '[option value="%s" %s] ' "$f" "$(l10n "$f")"
 	        done)
 	      ][button type="submit" name="action" value="addfield" $(l10n edit_addfield)]
@@ -90,7 +93,7 @@ print_card(){
       )]
       [div .section .phone   . $(card_item "$card" TEL)]
       [div .section .message . $(card_item "$card" EMAIL IMPP URL)]
-      [div .section .address . $(card_item "$card" ADR)]
+      [div .section .address . $(card_item "$card" ADR X-IBAN)]
       [div .section .note    . $(card_item "$card" NOTE)]
       [div .section .attendance [h3 $(l10n course_attendance) ] [ul
         $(grep -F "	${cardfile##*/}" "$_DATA/mappings/attendance" |while read each discard; do
@@ -101,6 +104,7 @@ print_card(){
         $(card_item "$card" CATEGORIES)
       ]
       [div .control
+        [a .button .item href="${_BASE}/ledgers/account.sh?card=${cardfile##*/}" $(l10n ledger)]
         [a .button .item href="${_BASE}/cards/edit_card.sh?card=${cardfile##*/}" $(l10n edit)]
         [a .button .item href="${_BASE}/cards/export_card.sh?card=${cardfile##*/}" $(l10n vcf_export)]
       ]
diff --git a/cards/update_card.sh b/cards/update_card.sh
index 2b87632..d57f503 100755
--- a/cards/update_card.sh
+++ b/cards/update_card.sh
@@ -35,7 +35,7 @@ attfile="$_DATA/mappings/attendance"
 action="$(POST action)"
 newfield="$(POST newfield |grep -m 1 -xE '[A-Z][A-Z0-9-]*')"
 
-if printf '%s\n' "$action" |grep -qxE 'addfield [A-Z][A-Z0-9]*'; then
+if printf '%s\n' "$action" |grep -qxE 'addfield [A-Z][A-Z0-9-]*'; then
   newfield="${action##* }"
   action=addfield
 fi
diff --git a/cgilite/cgilite.awk b/cgilite/cgilite.awk
index f16ed6a..ebf4411 100644
--- a/cgilite/cgilite.awk
+++ b/cgilite/cgilite.awk
@@ -1,5 +1,7 @@
 #!/bin/env awk -f
 
+function debug(t) { printf "%s\n", t >>"/dev/stderr"; }
+
 function PATH( str,    seg, out ) {
   while ( str ) {
     seg = str;
@@ -151,8 +153,9 @@ BEGIN {
   split("", _GET); split("", _POST); split("", _REF);
   split("", _HEADER); split("", _COOKIE);
 
-  if ( ENVIRON["REQUEST_METHOD"] )
+  if ( ENVIRON["REQUEST_METHOD"] ) {
     _cgilite_headers();
-  else
+  } else {
     _cgilite_request();
+  }
 }
diff --git a/cgilite/common.css b/cgilite/common.css
index 30c3942..16e99f2 100644
--- a/cgilite/common.css
+++ b/cgilite/common.css
@@ -31,7 +31,7 @@ a {
   color: #068;
   word-break: break-word;
 }
-a.button {
+a.button, label.button {
   font-style: inherit;
   text-decoration: inherit;
   color: inherit;
@@ -86,7 +86,7 @@ h1 {
 }
 h2 { font-size: 1.125em; }
 
-select, input, button, textarea, a.button {
+select, input, button, textarea, a.button, label.button {
   display: inline-block;
   color: #000; background-color: #FFF;
   border: .5pt solid;
@@ -103,7 +103,7 @@ input[type=radio], input[type=checkbox] {
 }
 input[type=number] { text-align: right; padding-right: 0; }
 
-button, input[type=button], a.button {
+button, input[type=button], a.button, label.button {
   box-shadow: .125em .125em .25em;
   cursor: pointer;
 }
diff --git a/cgilite/storage.sh b/cgilite/storage.sh
index 17ea0d0..5c61df0 100755
--- a/cgilite/storage.sh
+++ b/cgilite/storage.sh
@@ -94,6 +94,21 @@ UNSTRING(){
   printf '%s\n' "$out"
 }
 
+RXLITERAL(){
+  # sed -E 's;[].*+?^${}()|\[];\\&;g'
+  local in out=''
+  [ $# -gt 0 ] && in="$*" || in="$(cat)"
+  while [ "$in" ]; do case $in in
+    [.+^\$\{\}\(\)\[\]\*\?\|\\]*)
+      out="${out}\\${in%"${in#?}"}"; in="${in#?}";
+      ;;
+    *)out="${out}${in%%[.+^\$\{\}\(\)\[\]\*\?\|\\]*}"
+      in="${in#"${in%%[.+^\$\{\}\(\)\[\]\*\?\|\\]*}"}"
+      ;;
+  esac; done
+  printf '%s\n' "$out"
+}
+
 DBM() {
   local file="$1" cmd="$2"
   local k v key value
diff --git a/datetime.sh b/datetime.sh
new file mode 100755
index 0000000..2b4bba9
--- /dev/null
+++ b/datetime.sh
@@ -0,0 +1,101 @@
+#!/bin/sh
+
+[ "$include_datetime" ] && return 0
+include_datetime="$0"
+
+# Copyright 2023 - 2024 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+isdate(){
+  local date="$1" y m d
+
+  if   printf %s "$date" \
+    | grep -xEq '[0-9]{4}-((01|03|05|07|08|10|12)-(0[1-9]|[12][0-9]|3[01])|(04|06|09|11)-(0[1-9]|[12][0-9]|30)|02-(0[1-9]|[12][0-9]))'
+  then  # y-m-d (ISO Date)
+    y="${date%%-*}" d="${date##*-}" m="${date%-*}" m="${m#*-}"
+  elif printf %s "$date" \
+    | grep -xEq '((0?1|0?3|0?5|0?7|0?8|10|12)/(0?[1-9]|[12][0-9]|3[01])|(0?4|0?6|0?9|11)/(0?[1-9]|[12][0-9]|30)|0?2-(0[1-9]|[12][0-9]))/([0-9]{2}|[0-9]{4})'
+  then  # m/d/y (US Date)
+    y="${date##*/}" m="${date%%/*}" d="${date%/*}" d="${d#*/}"
+  elif printf %s "$date" \
+    | grep -xEq '((0?[1-9]|[12][0-9]|3[01])[\./](0?1|0?3|0?5|0?7|0?8|10|12)|(0?[1-9]|[12][0-9]|30)[\./](0?4|0?6|0?9|11)|(0[1-9]|[12][0-9])[\./]0?2)[\./]([0-9]{2}|[0-9]{4})'
+  then  # d/m/y or d.m.y (European Date / German Date)
+    y="${date##*.}" d="${date%%.*}" m="${date%.*}" m="${m#*.}"
+  else
+    return 1
+  fi
+  [ $y -lt 100 -a $y -gt 50 ] && y=$((y + 1900))
+  [ $y -lt 100 -a $y -le 50 ] && y=$((y + 2000))
+  date="$(printf "%04i-%02i-%02i" $y ${m#0} ${d#0})"
+
+  # leap year
+  if [ "$m" -eq 2 -a "$d" -eq 29 ]; then
+    if   [ "$((y % 400))" -eq 0 ]; then
+      :
+    elif [ "$((y % 100))" -eq 0 ]; then
+      return 1
+    elif [ "$((y % 4))" -eq 0 ]; then
+      :
+    else
+      return 1
+    fi
+  fi
+
+  printf '%04i-%02i-%02i\n' "$y" "${m#0}" "${d#0}"
+  return 0
+}
+
+istime(){
+  time="$1" h= m=
+
+  if   printf %s "$time" | grep -xEq '(0?[1-9]|1[012])(:[0-5][0-9])? ?(am|AM)\.?'; then
+    time="${time%?[aA][mM]}" h="${time%:*}" h="$(h % 12)"
+    [ "$h" != "$time" ] && m="${time#*:}" || m=0
+  elif printf %s "$time" | grep -xEq '(0?[1-9]|1[012])(:[0-5][0-9])? ?(pm|PM)\.?'; then
+    time="${time%?[aA][mM]}" h="${time%:*}" h="$(h % 12 + 12)"
+    [ "$h" != "$time" ] && m="${time#*:}" || m=0
+  elif printf %s "$time" | grep -xEq '(0?[0-9]|1[0-9]|2[0-3]):[0-5][0-9]'; then
+    time="${time%?[aA][mM]}" h="${time%:*}" m="${time#*:}"
+  else
+    return 1
+  fi
+
+  printf '%02i:%02i\n' "${h#0}" "${m#0}"
+  return 0
+}
+
+numdays(){
+  # return number of days in a month (i.e. 28, 29, 30, or 31)
+  local y="$1" m="${2#0}"
+
+  case $m in
+    1|3|5|7|10|12)
+      printf 31\\n
+      ;;
+    4|6|8|9|11)
+      printf 30\\n
+      ;;
+    2) if  [ "$((y % 400))" -eq 0 ]; then
+        printf 29\\n
+      elif [ "$((y % 100))" -eq 0 ]; then
+        printf 28\\n
+      elif [ "$((y % 4))" -eq 0 ]; then
+        printf 29\\n
+      else
+        printf 28\\n
+      fi
+      ;;
+    *) return 1;;
+  esac
+}
diff --git a/index.cgi b/index.cgi
index 276965f..71edd85 100755
--- a/index.cgi
+++ b/index.cgi
@@ -34,6 +34,8 @@ _PATH="$(PATH "/${PATH_INFO}")"
 _PATH="${_PATH#${_BASE}}"
 ACTION="$(GET a)"
 
+SESSION_COOKIE
+
 message="$(COOKIE message)"
 [ "$message" ] && SET_COOKIE 0 message=''
 
@@ -64,7 +66,8 @@ yield_page() {
     printf '
 	] [body #top class="%s"
     ' "$class"
-    printf '[ul .menu [li [a "%s/cards/" . %s]][li [a "%s/courses/" . %s]]]' "${_BASE}" "$(l10n cards)" "${_BASE}" "$(l10n courses)"
+    printf '[ul .menu [li [a "%s/cards/" . %s]][li [a "%s/courses/" . %s]][li [a "%s/ledgers/" . %s]]]' \
+           "${_BASE}" "$(l10n cards)" "${_BASE}" "$(l10n courses)" "${_BASE}" "$(l10n ledgers)"
     [ "$message" ] && printf '[p #message\n%s\n]' "$(l10n "$message")"
     cat
     printf '] ]'
diff --git a/l10n.sh b/l10n.sh
index bddc7b7..4f13ad4 100755
--- a/l10n.sh
+++ b/l10n.sh
@@ -26,6 +26,7 @@ l10n_global() {
     # Nav Menu
     cards) printf %s "Teil&shy;neh&shy;mende";;
     courses) printf %s "Kurse";;
+    ledgers) printf %s "Bei&shy;trä&shy;ge";;
 
     # VCF Default
     PHOTO) printf %s "Foto";;
@@ -84,6 +85,7 @@ l10n_global() {
     edit) printf %s "Bearbeiten";;
     edit_categories) printf %s "Kategorien Bearbeiten";;
     vcf_export) printf %s "Vcard Exportieren";;
+    ledger) printf %s "Buchungen";;
     control) printf %s "Aktionen";;
     delete) printf %s "entfernen";;
     edit_update) printf %s "Daten übernehmen";;
@@ -114,6 +116,28 @@ l10n_global() {
     filter_cancel) printf %s "Filter löschen";;
     export_csv) printf %s "Liste als CSV-Datei";;
 
+    # Accounting page
+    Ledgers) printf %s "Buchungslisten";;
+    '%i IBANs are unassigned') printf %s "%i IBANs sind nicht zugewiesen";;
+    'IBAN Assignments') printf %s "IBAN Zuweisung";;
+    'Assign IBANs') printf %s "IBANs Zuweisen";;
+    'Account') printf %s "Konto";;
+
+    'Accept Suggestions') printf %s "Vorschläge Akzeptieren";;
+    'Ignore Suggestions') printf %s "Vorschläge Ignorieren";;
+    'Submit Changes') printf %s "Änderungen Übernehmen";;
+
+    'Payments') printf %s "Zahlungen";;
+    'Date') printf %s "Datum";;
+    'Originator') printf %s "Auftraggeber";;
+    'Reference Text') printf %s "Verwendungszweck";;
+    'Amount') printf %s "Betrag";;
+    'Balance') printf %s "Stand";;
+    'Manual Record') printf %s "Manueller Eintrag";;
+    'once') printf %s "einmalig";;
+    'monthly until') printf %s "monatlich bis";;
+    'until') printf %s "bis";;
+
     # UI Labels Special
     course_attendance) printf %s "Kurs&shy;teil&shy;nahme";;
     vcf_seed_label) printf "Anmeld.	Vorn.	Nachn.	Geb.Tag	Geb.Monat	Geb.Jahr	Tel.	Mobil	()	EMail	()	Notiz";;
diff --git a/ledgers/account.sh b/ledgers/account.sh
new file mode 100755
index 0000000..d9d3f4b
--- /dev/null
+++ b/ledgers/account.sh
@@ -0,0 +1,88 @@
+#!/bin/sh
+
+credit() {
+  printf '%+03i\n' "$1" \
+  | sed -E 's;[0-9]{2}$;d&;; :0 s;([0-9])([0-9]{3}[dm]);\1m\2;; t0; y;dm;,.;'
+}
+
+if [ "$REQUEST_METHOD" = POST ]; then
+  uid="$(POST uid)"
+  cfile="$(grep -lxF "UID;:${uid}" "${_DATA}/vcard/"*.vcf || grep -lxF "UID:${uid}" "${_DATA}/vcard/"*.vcf)"
+  REDIRECT "${_BASE}/ledgers/account.sh?card=${cfile##*/}"
+fi
+
+. "${_EXEC}/cgilite/storage.sh"
+. "${_EXEC}/pdiread.sh"
+. "${_EXEC}/cards/l10n.sh"
+. "${_EXEC}/cards/widgets.sh"
+
+cardfile="${_DATA}/vcard/$(GET card |PATH)"
+if [ ! -f "$cardfile" ]; then
+  SET_COOKIE 0 message="Invalid account: $cardfile"
+  REDIRECT "${_BASE}/ledgers/"
+fi
+
+cledger="${cardfile##*/}"
+cledger="${_DATA}/ledgers/vcf.${cledger%.vcf}.account"
+
+{ card="$(pdi_load "$cardfile")"
+  cat <<-EOF
+	[h1 $(l10n Payments)]
+	[div .card #${cardfile##*/}
+	  [div .section .basic . $(
+	    card_item "$card" FN GENDER NICKNAME BDAY X-ZACK-JOINDATE X-ZACK-LEAVEDATE SOUND PHOTO LOGO
+	  )]
+	  [div .section .phone   . $(card_item "$card" TEL)]
+	  [div .section .message . $(card_item "$card" EMAIL IMPP URL)]
+	  [div .section .address . $(card_item "$card" ADR X-IBAN)]
+	  [div .section .note    . $(card_item "$card" NOTE)]
+	  [div .section .attendance [h3 $(l10n course_attendance) ] [ul
+	    $(grep -F "     ${cardfile##*/}" "$_DATA/mappings/attendance" |while read each discard; do
+	      printf '[li [a .item .attendance href="%s/courses#%s" . %s]]' \
+	             "${_BASE}" "$each" \
+	             "$(pdi_value "$(pdi_load "$_DATA/ical/$each")" SUMMARY || l10n "(unnamed course)" |unescape |HTML)"
+	    done |sort -k7)]
+	    $(card_item "$card" CATEGORIES)
+	  ]
+	]
+	EOF
+  printf '[table .transactions [thead
+          [tr [th .date . %s][th .orig . %s][th .reference . %s][th .amount . %s][th .balance . %s]]' \
+         "$(l10n Date)" "$(l10n Originator)" "$(l10n "Reference Text")" "$(l10n Amount)" "$(l10n Balance)"
+  printf '][tbody'
+  cnt="$(pdi_count "$card" X-IBAN)"
+  while [ "$cnt" -gt 0 ]; do
+    pdi_value "$card" X-IBAN "$cnt" |RXLITERAL
+    cnt=$((cnt - 1))
+  done \
+  | {
+    while read -r iban; do
+      grep -hE "^[^\t]+	[^\t]+	${iban}	" "${_DATA}/ledgers/"*.tbl
+    done
+    if [ -f "$cledger" ]; then
+      :
+    fi
+  } \
+  | sort -n -k2 \
+  | { total=0
+    while read -r date dtstamp iban accname subject amount; do
+      total=$((total + amount))
+      printf '[tr [td .date . %s][td .orig [span . %s][span . %s]][td .reference . %s][td .amount . %s][td .balance . %s]]' \
+             "$date" "$(HTML "$iban")" \
+             "$(UNSTRING "$accname" |HTML)" "$(UNSTRING "$subject" |HTML)" \
+             "$(credit "$amount")" "$(credit "$total")"
+    done
+  }
+  printf '[tr [th colspan=5 . %s]]' "$(l10n 'Manual Record')"
+  printf '[tr [td .date [input type=date placeholder="%s" name=tdate]]
+              [td .orig [input id=trec_once  type=radio name="trec" value="once" selected]
+                        [label for=trec_once  . %s]<br/>
+                        [input id=trec_month type=radio name="trec" value="month"]
+                        [label for=trec_month . %s]
+                        [input type=date name="trec_until" placeholder="%s"]]
+              [td .reference . [textarea placeholder="%s" name=treference]]
+              [td .amount colspan=2 [input type=number placeholder="%s" name=tamount value=0.00 step=.01]]' \
+       "$(l10n Date)" "$(l10n once)" "$(l10n "monthly until")" "$(l10n until)" "$(l10n "Reference Text")" "$(l10n Amount)"
+  printf ']]]'
+} \
+| yield_page ledgers
diff --git a/ledgers/csv_upload.awk b/ledgers/csv_upload.awk
new file mode 100755
index 0000000..04de4d5
--- /dev/null
+++ b/ledgers/csv_upload.awk
@@ -0,0 +1,100 @@
+#!/bin/awk -f
+
+function STRING( inp ) {
+  gsub(/\\/, "\\\\", inp);
+  gsub(/\n/, "\\n",  inp);
+  gsub(/\r/, "\\r",  inp);
+  gsub(/\t/, "\\t",  inp);
+  gsub(/\+/, "\\+",  inp);
+  gsub(/ /,  "+",    inp);
+  return inp ? inp : "\\";
+}
+
+function UNSTRING( inp,    out, tmp ) {
+  while ( inp ) {
+         if ( inp ~ /^\\\\/) { out = out "\\"; sub(/^\\\\/, "", inp); }
+    else if ( inp ~ /^\\n/)  { out = out "\n"; sub(/^\\n/,  "", inp); }
+    else if ( inp ~ /^\\r/)  { out = out "\r"; sub(/^\\r/,  "", inp); }
+    else if ( inp ~ /^\\t/)  { out = out "\t"; sub(/^\\t/,  "", inp); }
+    else if ( inp ~ /^\\+/)  { out = out "+";  sub(/^\\+/,  "", inp); }
+    else if ( inp ~ /^\+/)   { out = out " ";  sub(/^\+/,   "", inp); }
+    else if ( inp ~ /^\\/)   { out = out "";   sub(/^\+/,   "", inp); }
+    else { tmp = inp; sub(/[\\+].*$/, "", tmp); out = out tmp; sub(/^[^\\+]*/, "", inp); }
+  }
+  return out;
+}
+
+function isdate( date,    dt, y, m, d ) {
+         if ( match( date, 
+    /^[0-9]{4}-((01|03|05|07|08|10|12)-(0[1-9]|[12][0-9]|3[01])|(04|06|09|11)-(0[1-9]|[12][0-9]|30)|02-(0[1-9]|[12][0-9]))$/ )) {
+    split( date, dt, "-");
+    y = dt[1]; m = dt[2]; d = dt[3];
+
+  } else if ( match( date,
+    /^((0?1|0?3|0?5|0?7|0?8|10|12)\/(0?[1-9]|[12][0-9]|3[01])|(0?4|0?6|0?9|11)\/(0?[1-9]|[12][0-9]|30)|0?2\/(0[1-9]|[12][0-9]))\/([0-9]{2}|[0-9]{4})$/ )) {
+    split( date, dt, "/");
+    m = dt[1]; d = dt[2]; y = dt[3];
+
+  } else if ( match( date,
+    /^((0?[1-9]|[12][0-9]|3[01])[\.\/](0?1|0?3|0?5|0?7|0?8|10|12)|(0?[1-9]|[12][0-9]|30)[\.\/](0?4|0?6|0?9|11)|(0[1-9]|[12][0-9])[\.\/]0?2)[\.\/]([0-9]{2}|[0-9]{4})$/ )) {
+    split( date, dt, /[\.\/]/);
+    d = dt[1]; m = dt[2]; y = dt[3];
+
+  } else return "";
+
+  if ( y < 100 && y >  50 ) y = y + 1900;
+  if (            y <= 50 ) y = y + 2000;
+
+  # leap year
+  if ( m == 2 && d == 29 ) {
+         if ( y % 400 == 0 ) y = y;
+    else if ( y % 100 == 0 ) return "";
+    else if ( y %   4 == 0 ) y = y;
+    else return "";
+  }
+
+  return sprintf("%04i-%02i-%02i", y, m, d);
+}
+
+function cents( val ) {
+  gsub(/\./, "", val); sub(/,/, ".", val);
+  return val * 100;
+}
+
+BEGIN {
+  FS = ";";
+  dtrange_end = dt_from = dt_to = balance_start = balance_end = "";
+  split("", rec);
+  rec[0] = "Date	DateU	IBAN	Name	Subject	Amount"
+}
+
+/^([012]?[0-9]|30|31).(0?[1-9]|1[012]).[0-9]{4} - ([012]?[0-9]|30|31).(0?[1-9]|1[012]).[0-9]{4}$/ {
+  dtrange_end = $0; sub(/^.* - /, "", dtrange_end);
+  dt_from = $0; sub(/ - .*$/, "", dt_from); dt_from = isdate(dt_from);
+  dt_to   = $0; sub(/^.* - /, "", dt_to  ); dt_to   = isdate(dt_to  );
+}
+
+/^Letzter Kontostand;;;;[0-9\.,]+;EUR$/ {
+  balance_start = cents($5);
+}
+
+/Kontostand;[^;]+;;;[0-9\.,]+;EUR/ {
+  if ( $2 = dtrange_end ) balance_end = cents($5)
+}
+
+$18 == "EUR" {
+  rec_date = isdate($1); gsub(/-/, " ", rec_date); rec_date = mktime(rec_date " 00 00 00", "UTC");
+  rec[length(rec)] = sprintf("%s	%i	%s	%s	%s	%i",
+                             isdate($1), rec_date, $6 ? $6 : "\\", STRING($4), STRING($5), cents($12));
+}
+
+END {
+  if ( dt_from && dt_to ) {
+    dtu_from = dt_from; gsub(/-/, " ", dtu_from); dtu_from = mktime( dtu_from " 00 00 00", "UTC");
+    dtu_to   = dt_to  ; gsub(/-/, " ", dtu_to  ); dtu_to   = mktime( dtu_to   " 00 00 00", "UTC");
+
+    printf "%i	%s	%i	%s	%i	%i\n",
+           dtu_from, dt_from, dtu_to, dt_to, balance_start, balance_end;
+    for ( k = 1; k < length(rec); k++ ) print rec[k];
+  }
+}
diff --git a/ledgers/csv_upload.sh b/ledgers/csv_upload.sh
new file mode 100755
index 0000000..4d25b5c
--- /dev/null
+++ b/ledgers/csv_upload.sh
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# Copyright 2024 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+if [ "${CONTENT_TYPE%%;*}" != "multipart/form-data" ]; then
+  SET_COOKIE 0 message="Not an upload"
+  REDIRECT "${_BASE}/ledgers/"
+fi
+
+. "$_EXEC/multipart.sh"
+multipart_cache
+
+# Validate session id from form to prevent CSRF
+if [ "$(multipart session_id)" != "$SESSION_ID" ]; then
+  rm -- "$multipart_cachefile"
+  SET_COOKIE 0 message="INVALID SESSION ID IN FORM"
+  REDIRECT "${_BASE}/ledgers/"
+fi
+
+mkdir -p "$_DATA/ledgers/"
+CSV="$(multipart "csv" 1 | "$_EXEC/ledgers/csv_upload.awk")"
+rm -- "$multipart_cachefile"
+
+read dtu_start dt_start dtu_end dt_end balance_start balance_end <<-EOF
+	${CSV%%${BR}*}
+EOF
+
+if [ ! "$dtu_end" -o ! "$dtu_start" ] || [ "$dtu_end" -lt "$dtu_start" ]; then
+  SET_COOKIE 0 message="No valid date range in upload"
+else
+  num=0; while [ ! "$filename" -o -f "$_DATA/ledgers/$filename" ]; do
+    num=$((num + 1)); filename="${dt_start} - ${dt_end} - $(printf '%04i' $num).tbl"
+  done
+  printf '%s\n' "$CSV" >"$_DATA/ledgers/$filename"
+fi
+
+REDIRECT "${_BASE}/ledgers/"
diff --git a/ledgers/delete.sh b/ledgers/delete.sh
new file mode 100755
index 0000000..7b41921
--- /dev/null
+++ b/ledgers/delete.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+delete="$(POST delete |PATH)"
+dtable="${_DATA}/ledgers/${delete##*/}"
+
+if [ "$dtable" ]; then
+  rm -- "${dtable}" \
+  || SET_COOKIE 0 message="Unable to delete ledger: \"$(HTML "$delete")\""
+else
+  SET_COOKIE 0 message="No such ledger: \"$(HTML "$delete")\""
+fi
+
+REDIRECT "${_BASE}/ledgers/"
diff --git a/ledgers/iban_assign.awk b/ledgers/iban_assign.awk
new file mode 100755
index 0000000..0491617
--- /dev/null
+++ b/ledgers/iban_assign.awk
@@ -0,0 +1,92 @@
+#!/bin/awk -f
+
+function dbg( text ) { print text >>"/dev/stderr"; }
+
+function STRING( inp ) {
+  gsub(/\\/, "\\\\", inp);
+  gsub(/\n/, "\\n",  inp);
+  gsub(/\r/, "\\r",  inp);
+  gsub(/\t/, "\\t",  inp);
+  gsub(/\+/, "\\+",  inp);
+  gsub(/ /,  "+",    inp);
+  return inp ? inp : "\\";
+}
+
+function UNSTRING( inp,    out, tmp ) {
+  while ( inp ) {
+         if ( inp ~ /^\\\\/) { out = out "\\"; sub(/^\\\\/, "", inp); }
+    else if ( inp ~ /^\\n/)  { out = out "\n"; sub(/^\\n/,  "", inp); }
+    else if ( inp ~ /^\\r/)  { out = out "\r"; sub(/^\\r/,  "", inp); }
+    else if ( inp ~ /^\\t/)  { out = out "\t"; sub(/^\\t/,  "", inp); }
+    else if ( inp ~ /^\\+/)  { out = out "+";  sub(/^\\+/,  "", inp); }
+    else if ( inp ~ /^\+/)   { out = out " ";  sub(/^\+/,   "", inp); }
+    else if ( inp ~ /^\\/)   { out = out "";   sub(/^\+/,   "", inp); }
+    else { tmp = inp; sub(/[\\+].*$/, "", tmp); out = out tmp; sub(/^[^\\+]*/, "", inp); }
+  }
+  return out;
+}
+
+function rx( regex ) {
+  gsub(/[].*+?^${}()|\\[]/, "\\\\&", regex);
+  return regex;
+}
+
+BEGIN {
+  FS = "	"; ledger = 0;
+  fn = n = uid = iban = tmp = "";
+  split("", uid_n); split("", uid_fn); split("", uid_iban);
+  split("", iban_uid); split("", ibans); split("", uids);
+
+  split("", sure); split("", unsure); split("", unknown);
+  split("", unsure_rec)
+}
+
+/^BEGIN;:VCARD$/ { fn = n = id = iban = tmp = ""; }
+
+   /^UID;[^:]*:/ {  uid = $0; sub(/^[^;]+;[^:]*:/, "",  uid); }
+    /^FN;[^:]*:/ {   fn = $0; sub(/^[^;]+;[^:]*:/, "",   fn); }
+     /^N;[^:]*:/ {    n = $0; sub(/^[^;]+;[^:]*:/, "",    n); sub(/;.*$/, "", n); }
+/^X-IBAN;[^:]*:/ { iban = $0; sub(/^[^;]+;[^:]*:/, "", iban); ibans[length(ibans)] = iban; }
+
+/^END;:VCARD$/ {
+  uid_n[uid] = n; uid_fn[uid] = fn; uid_iban[uid] = iban;
+  for (iban in ibans) iban_uid[ibans[iban]] = iban_uid[ibans[iban]] ? iban_uid[ibans[iban]] " " uid : uid;
+  fn = n = uid = iban = tmp = ""; split("", ibans);
+}
+
+/^BEGIN:LEDGERS$/ { ledger = 1; }
+
+ledger && strftime("%Y-%m-%d", $2, "UTC") == $1 {
+  if ($3 in iban_uid) {
+    sure[$3] = iban_uid[$3];
+  } else {
+    for (uid in uid_fn) if ( match(UNSTRING($5), rx(uid_fn[uid])) ) {
+      if (! match(unsure[$3], rx(uid))) unsure[$3] = unsure[$3] ? unsure[$3] " " uid : uid;
+      unsure_rec[$3] = $0
+    }
+    for (uid in uid_n) if ( uid_n[uid] && match(UNSTRING($4), rx(uid_n[uid])) ) {
+      if (! match(unsure[$3], rx(uid))) unsure[$3] = unsure[$3] ? unsure[$3] " " uid : uid;
+      unsure_rec[$3] = $0
+    }
+  }
+  if (!($3 in sure) && !($3 in unsure)) unknown[$3] = $0;
+}
+
+END {
+  for (iban in unsure) {
+    line = "guess	" iban " " STRING(unsure_rec[iban]);
+    split(unsure[iban], uids, / /);
+    for (k in uids) line = line "	" STRING(uids[k] "/" uid_fn[uids[k]]);
+    print line;
+  }
+  for (iban in unknown) {
+    line = "unknown	" iban " " unknown[iban];
+    print line;
+  }
+  for (iban in sure) {
+    line = "sure	" iban;
+    split(sure[iban], uids, / /);
+    for (k in uids) line = line "	" STRING(uids[k] "/" uid_fn[uids[k]]);
+    print line;
+  }
+}
diff --git a/ledgers/iban_assign.sh b/ledgers/iban_assign.sh
new file mode 100755
index 0000000..778d279
--- /dev/null
+++ b/ledgers/iban_assign.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+credit() {
+  printf '%03i\n' "$1" \
+  | sed -E 's;[0-9]{2}$;d&;; :0 s;([0-9])([0-9]{3}[dm]);\1m\2;; t0; y;dm;,.;'
+}
+
+{ printf '
+  [h1 . %s]
+  [form .ibanassign action="%s/ledgers/set_iban.sh" method=POST
+    [input type=hidden name=session_id value="%s"]
+  ' "$(l10n "IBAN Assignments")" "${_BASE}" "$SESSION_ID"
+  printf '[datalist id=lattendants .'
+  pdi_load "${_DATA}"/vcard/*.vcf |sed -n '/^FN\;:/!b; s;^FN\;:;;; p;' \
+  | while read name; do
+    printf '[option value="%s"]' "$(HTML "$name")"
+  done
+  printf ']'
+  l10n_attendant="$(l10n attendant)"
+  printf %s\\n "$IBAN_ASSIGN" \
+  | while read -r state iban data; do
+    iban="$(UNSTRING "$iban")"
+    [ ! "$iban" ] && iban="??????????"
+    printf '[input type=checkbox id="use_%s" name="use_%s" value=true]' "$iban" "$iban"
+    printf '[fieldset .iban .%s [legend . %s ]' \
+           "$state" "$iban"
+    if   [ $state = sure ]; then
+      for card in $data; do
+        uid="${card%%/*}" name="$(UNSTRING "${card#*/}")"
+        printf '[span .card . %s]' "$(HTML "${name}")"
+      done
+      :
+    elif [ $state = guess ]; then
+      record="$(UNSTRING "${data%%	*}")"
+      cards="${data#*	}"
+      date="${record%%	*}"
+      principal="${record#*	*	*	}" principal="${principal%%	*}"
+      subject="${record#*	*	*	*	}" subject="${subject%%	*}"
+      amount="${record#*	*	*	*	*	}" amount="${amount%%	*}"
+      printf '[p .principal . %s][p .date %s][p .amount %s][p .subject . %s]' \
+             "$(UNSTRING "$principal" |HTML)" "$date" "$(credit "$amount")" "$(UNSTRING "$subject" |HTML)"
+      n=0; for card in $cards; do
+        n=$((n+1)); uid="${card%%/*}" name="$(UNSTRING "${card#*/}")"
+        cat <<-EOF
+	  [input type=checkbox id="check_${iban}_$n" name="check_${iban}_$n" value=true checked=checked]
+	  [input .card name="fn_${iban}_$n" value="$(HTML "$name")" .disabled tabindex="-1"]
+	  [label .del for="check_${iban}_$n" . -]
+	EOF
+      done
+      for m in 1 2 3 4 5 6 7 8; do
+        cat <<-EOF
+	  [input type=checkbox id="check_${iban}_$((n+m))" name="check_${iban}_$((n+m))" value=true]
+	  [input .card name="fn_${iban}_$((n+m))" value="" placeholder="${l10n_attendant}" list="lattendants"]
+	  [label .add for="check_${iban}_$((n+m))" . +]
+	EOF
+      done
+      printf '[label .button for="use_%s" . %s]' "$iban" "$(l10n Accept Suggestions)"
+      printf '[label .button for="use_%s" . %s]' "$iban" "$(l10n Ignore Suggestions)"
+    elif [ $state = unknown ]; then
+      date="${data%%	*}"
+      principal="${data#*	*	*	}" principal="${principal%%	*}"
+      subject="${data#*	*	*	*	}" subject="${subject%%	*}"
+      amount="${data#*	*	*	*	*	}" amount="${amount%%	*}"
+      printf '[p .principal . %s][p .date %s][p .amount %s][p .subject . %s]' \
+             "$(UNSTRING "$principal" |HTML)" "$date" "$(credit "$amount")" "$(UNSTRING "$subject" |HTML)"
+      printf '[input name="check_" type=hidden][input type=hidden][label .del]'
+      n=0; for m in 1 2 3 4 5 6 7 8; do
+        cat <<-EOF
+	  [input type=checkbox id="check_${iban}_$((n+m))" name="check_${iban}_$((n+m))" value=false]
+	  [input .card name="fn_${iban}_$((n+m))" value="" placeholder="${l10n_attendant}" list="lattendants"]
+	  [label .add for="check_${iban}_$((n+m))" . +]
+	EOF
+      done
+      printf '[label .button for="use_%s" . %s]' "$iban" "$(l10n Accept Suggestions)"
+      printf '[label .button for="use_%s" . %s]' "$iban" "$(l10n Ignore Suggestions)"
+    fi
+  printf ']'
+  done
+  printf '[button type=submit . %s]' "$(l10n Submit Changes)"
+  printf '  ]'
+} | yield_page ledgers
diff --git a/ledgers/index.cgi b/ledgers/index.cgi
new file mode 100755
index 0000000..f5ac6b5
--- /dev/null
+++ b/ledgers/index.cgi
@@ -0,0 +1,76 @@
+#!/bin/sh
+
+. "$_EXEC/cgilite/storage.sh"
+. "$_EXEC/pdiread.sh"
+
+if [ "$(POST show_account)" ]; then
+  uid="$(POST show_account)"
+  cfile="$(grep -lxF "UID;:${uid}" "${_DATA}/vcard/"*.vcf || grep -lxF "UID:${uid}" "${_DATA}/vcard/"*.vcf)"
+  REDIRECT "${_BASE}/ledgers/account.sh?card=${cfile##*/}"
+  exit 0;
+fi
+
+credit() {
+  printf '%03i\n' "$1" \
+  | sed -E 's;[0-9]{2}$;d&;; :0 s;([0-9])([0-9]{3}[dm]);\1m\2;; t0; y;dm;,.;'
+}
+
+IBAN_ASSIGN="$(
+  { pdi_load "${_DATA}"/vcard/*.vcf
+    printf 'BEGIN:LEDGERS\n'
+    cat "${_DATA}"/ledgers/????-??-??\ -\ ????-??-??\ -\ ????.tbl
+  } | "${_EXEC}"/ledgers/iban_assign.awk
+  printf '\n'
+)"
+
+if [ "${PATH_INFO%/iban_assign/}" != "${PATH_INFO}" ]; then
+  . "${_EXEC}/ledgers/iban_assign.sh"
+  exit 0
+fi
+
+{ printf '
+  [form .upload action="%s/ledgers/csv_upload.sh" method="POST" enctype="multipart/form-data"
+    [label for=ledger_upload . %s:]
+    [input #ledger_upload type="file" name="csv" accept=".csv,text/csv"]
+    [input type=hidden name=session_id value="%s"]
+    [button type="submit" %s]
+  ]' \
+  "${_BASE}" "$(l10n "Postbank CSV")" "$SESSION_ID" "$(l10n Upload)"
+  printf '
+  [form .ledgers action="%s/ledgers/delete.sh" method=POST
+    [input type=hidden name=session_id value="%s"]
+    [h3 . %s]
+  ' "${_BASE}" "$SESSION_ID" "$(l10n Ledgers)"
+  for ledger in "$_DATA"/ledgers/????-??-??\ -\ ????-??-??\ -\ ????.tbl; do
+    ledger="${ledger##*/}"
+    [ "$ledger" = "????-??-?? - ????-??-?? - ????.tbl" ] && continue
+    printf '[p .ledger . %s [button type=submit name=delete value="%s" . %s]]' \
+           "$(HTML "${ledger% - ????.tbl}")" "$(HTML "$ledger")" "$(l10n delete)"
+  done
+  printf '  ]'
+  unassigned="$(printf %s\\n "$IBAN_ASSIGN" |grep -E '^guess|^unknown' |wc -l)"
+  cat <<-EOF
+	[div
+	  [h1 . $(l10n IBAN Assignments)]
+	  $(printf "$(l10n "%i IBANs are unassigned")" "$unassigned")
+	  [a href="${_BASE}/ledgers/iban_assign/" . $(l10n Assign IBANs)]
+	]
+	[form action="${_BASE}/ledgers/account.sh" method=POST
+	  [select name=uid
+	  $(printf %s\\n "$IBAN_ASSIGN" \
+	    | sed -E '
+	      /^sure	/!d;
+	      s;^sure	[^\t]+;;;
+	      s;([^\t]+)/([^\t]+);\1	\2\n;g;
+	      s;\n$;;
+	    ' \
+	    | while read uid fn; do
+	      uid="$(HTML "$uid")"
+	      fn="$(UNSTRING "$fn" |HTML)"
+	      printf '[option value="%s" . %s]' "$uid" "$fn"
+	    done)
+	  ]
+	  [button type="submit" . $(l10n Account)]
+	]
+	EOF
+} | yield_page ledgers
diff --git a/ledgers/set_iban.sh b/ledgers/set_iban.sh
new file mode 100755
index 0000000..08c9a3b
--- /dev/null
+++ b/ledgers/set_iban.sh
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+. "$_EXEC/pdiread.sh"
+. "$_EXEC/session_lock.sh"
+
+UIDLIST="$(
+  pdi_load "$_DATA/vcard/"*.vcf \
+  | sed -Ez '
+    s/\nBEGIN;:VCARD\n([^\n]+\n)*FN;:([^\n]+)\n([^\n]+\n)*UID;:([^\n]+)\n([^\n]+\n)*END;:VCARD\n/UID:\4 FN:\2/g
+  '
+  echo
+)"
+
+for key in $(POST_KEYS); do case $key in
+  use_*)
+    use_iban="${use_iban} ${key#use_} "
+    ;;
+esac; done
+
+[ "$use_iban" ] && for key in $(POST_KEYS); do case $key in
+  check_*_*)
+    iban="${key#check_}" iban="${iban%_*}"
+    [ ! "${use_iban##* "${iban}" *}" ] && check="${check} ${key#check_} "
+    ;;
+esac; done
+
+{ printf '[ul .results'
+  for use in $check; do
+    iban="${use%_*}"
+    fn="$(POST "fn_${use}")"
+    uid="${UIDLIST%% FN:"$fn"${BR}*}" uid="${uid##*${BR}UID:}"
+  
+    # cfile="${_DATA}/vcard/${uid}.vcf"
+    cfile="$(grep -lxF "UID;:${uid}" "${_DATA}/vcard/"*.vcf || grep -lxF "UID:${uid}" "${_DATA}/vcard/"*.vcf)"
+    if SLOCK "$cfile" >/dev/null; then
+      card="$(pdi_load "$cfile")"
+      cnum="$(pdi_count "$card" X-IBAN)"
+      pdi_update_value "$card" X-IBAN "$((cnum + 1))" "$iban" >"$cfile"
+      printf '[li .success . [span .name . %s] [span .uid . (UID: %s)] assigned IBAN [span .iban . %s]]' \
+             "$(HTML "$fn")" "$(HTML "$uid")" "$(HTML "$iban")"
+      RELEASE_SLOCK "$cfile"
+    else
+      printf '[li .error . [span .name . %s] [span .uid . (UID: %s)] is being edited elsewhere]'
+             "$(HTML "$fn")" "$(HTML "$uid")"
+    fi
+  done
+  printf ']'
+  printf '[a .button href="%s/ledgers/iban_assign/" . %s]' "${_BASE}" "$(l10n Back)"
+} | yield_page ledgers_assign
diff --git a/multipart.sh b/multipart.sh
new file mode 100755
index 0000000..02f7dfb
--- /dev/null
+++ b/multipart.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+
+[ "$include_multipart" ] && return 0
+inlude_multipart="$0"
+
+# Copyright 2022 - 2023 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+if [ "${CONTENT_TYPE}" -a ! "${CONTENT_TYPE##multipart/form-data;*}" ]; then
+  multipart_boundary="${CONTENT_TYPE#*; boundary=}"
+  multipart_boundary="${multipart_boundary%%;*}"
+  multipart_boundary="${multipart_boundary%${CR}}"
+fi
+multipart_cachefile="/tmp/multipart.$$"
+
+readbytes(){
+  # read n bytes, like `head -c` but do not consume input
+  local size="$1" block
+
+  for block in 65536 32768 16384 8192 4096 2048 1024 512 256 128 64 32 16 8 4 2 1; do
+    if [ $size -ge $block ]; then
+      dd status=none bs="$block" count="$((size / block))"
+      size="$((size % block))"
+    fi
+  done
+}
+
+multipart_cache() {
+  multipart_cachefile="${1:-${multipart_cachefile}}"  # global
+
+  if [ "${multipart_boundary}" ]; then
+    # readbytes "$(( CONTENT_LENGTH ))" >"${multipart_cachefile}"
+    head -c "$(( CONTENT_LENGTH ))" >"${multipart_cachefile}"
+  else
+    return 1
+  fi
+}
+
+multipart(){
+  local name="$1" count="${2:-1}"
+  local formdata state=begin
+
+  while IFS='' read -r formdata; do case "$formdata" in
+    "--${multipart_boundary}--${CR}")
+      [ $state = data ] && return 0 \
+                        || return 1
+      ;;
+    "--${multipart_boundary}${CR}")
+      [ $state = data ] && return 0 \
+                        || state=header
+      ;;
+    "Content-Disposition: form-data; name=\"${name}\""*"${CR}")
+      [ $state = header -a $count -eq 1 ] && state=dheader
+      [ $state = header -a $count -gt 1 ] && count=$((count - 1))
+      [ $state = data ] && printf "%s\n" "$formdata"
+      ;;
+    "${CR}")
+      if [ $state = dheader ]; then
+        # Do not use `sed -n` (or busybox sed will "convert" NULL to LF)
+        sed "/--${multipart_boundary}\(--\)\?${CR}/{x;q;}" \
+        | head -c-3
+        return 0;
+      fi
+      [ $state = header ] && state=junk
+      ;;
+  esac; done <"${multipart_cachefile}"
+}
+
+multipart_filename(){
+  local name="$1" count="${2:-1}"
+  local formdata state=begin
+
+  while read -r formdata; do case "$formdata" in
+    "--${multipart_boundary}--${CR}")
+      return 1
+      ;;
+    "--${multipart_boundary}${CR}")
+      state=header
+      ;;
+    "Content-Disposition: form-data; name=\"${name}\"; filename=\""*"\""*"${CR}")
+      [ $state = header -a $count -eq 1 ] && break
+      [ $state = header -a $count -gt 1 ] && count=$((count - 1))
+      ;;
+    "${CR}")
+      [ $state = header ] && state=junk
+      ;;
+  esac; done <"${multipart_cachefile}"
+
+  filename="${formdata#*; filename=\"}"
+  filename="${filename%%\"${CR}}"
+  filename="${filename%%\";*}"
+
+  HEX_DECODE % "$filename"
+}
diff --git a/style.css b/style.css
index 298ae3d..c00829e 100644
--- a/style.css
+++ b/style.css
@@ -25,8 +25,9 @@ body > .menu a {
   padding: .5em 3em;
   box-shadow: inset 0 0 .5em #000;
 }
-body.cards > .menu a[href$="/cards/"],
-body.courses > .menu a[href$="/courses/"] {
+body.ledgers > .menu a[href$="/ledgers/"],
+body.courses > .menu a[href$="/courses/"],
+body.cards > .menu a[href$="/cards/"] {
   color: #000;
   background-color: #FFF;
   box-shadow: none;
@@ -34,9 +35,9 @@ body.courses > .menu a[href$="/courses/"] {
 
 /* =========== FILTER AND SEARCH Headers ========= */
 
-form.categories,
+form.upload, form.categories,
 form.search, form.sort, form.filter, form.newcard, form.newcourses {
-  margin-top: 1em; padding: 0 1em;
+  margin-top: 1em; padding: .125em 1em 0 1em;
   z-index: 1;
 }
 form.filter > h1 { display: none; }
@@ -64,10 +65,17 @@ form.filter button[type=submit] {
 form.filter button[value=export_csv] { margin-left: 1em; }
 
 body.courses form .order { display: inline-block; margin-right: 2em;}
+body.courses form.search.sort fieldset { margin-top: .5em; }
 
 body.cards form.newcard { display: flex; }
 body.cards form.newcard input[name=seed] { flex: 1; }
 
+form.upload label {
+  display: block;
+  font-weight: bold;
+  margin-top: .5em;
+}
+
 
 /* ============ LIST ITEMS, Generic ============= */
 
@@ -359,3 +367,167 @@ body.categories form.namelist ul.namelist > li h2 {
 body.categories form.namelist ul.namelist > li ul li {
   display: inline-block;
 }
+
+
+/* ======== Ledgers Page ======== */
+
+form.ibanassign,
+form.ledgers {
+  padding: .125em 1em 0 1em;
+}
+
+.ibanassign fieldset.iban.sure { background-color: #DFD; }
+.ibanassign fieldset.iban.guess { background-color: #FFD; }
+.ibanassign fieldset.iban.unknown { background-color: #FDD; }
+
+.ibanassign fieldset.iban {
+  padding: 0 .75em;
+  margin-top: -.5em;
+  box-shadow: .25em .25em .25em #AAA;
+}
+.ibanassign fieldset.iban legend {
+  top: .75em;
+}
+.ibanassign fieldset.iban p.principal {
+  font-size: .875em;
+}
+.ibanassign fieldset.iban p.date,
+.ibanassign fieldset.iban p.amount {
+  font-size: .875em;
+  display: inline-block;
+  vertical-align: top;
+  margin-right: .75em;
+  margin-bottom: 0;
+}
+.ibanassign fieldset.iban p.amount {
+  font-weight: bold;
+}
+
+.ibanassign fieldset.iban.sure .card { margin-right: 1em; }
+
+.ibanassign fieldset.iban input[name^="fn_"].disabled {
+  pointer-events: none;
+}
+.ibanassign fieldset.iban input[name^="check_"],
+.ibanassign fieldset.iban input[name^="check_"] + input,
+.ibanassign fieldset.iban input[name^="check_"] + input + label {
+  display: none;
+}
+.ibanassign fieldset.iban input[name^="check_"]:checked + input,
+.ibanassign fieldset.iban input[name^="check_"]:checked + input + label.del,
+.ibanassign fieldset.iban input[name^="check_"] + input + label.del + input + input + label.add,
+.ibanassign fieldset.iban input[name^="check_"]:checked + input + label + input + input + label.add {
+  display: inline;
+}
+.ibanassign fieldset.iban input[name^="check_"]:checked + input + label.add,
+.ibanassign fieldset.iban input[name^="check_"] + input + label.del + input:checked + input + label.add,
+.ibanassign fieldset.iban input[name^="check_"]:checked + input + label + input:checked + input + label.add {
+  display: none;
+}
+
+.ibanassign fieldset.iban input[name^="check_"] + input + label {
+  vertical-align: bottom;
+  line-height: 2.5em;
+  padding: .375em .625em;
+  border: .5pt solid;
+}
+.ibanassign fieldset.iban input[name^="check_"] + input + label.add {
+  background-color: #DFD;
+  border-radius: 2pt;
+}
+.ibanassign fieldset.iban input[name^="check_"] + input + label.del {
+  margin: 0 .5em 0 -.25em;
+  background-color: #FDD;
+  border-radius: 0 2pt 2pt 0;
+}
+
+.ibanassign input[name^="use_"] {
+  display: none;
+}
+.ibanassign input[name^="use_"]:checked + fieldset.iban.guess   { background-color: #EFD; }
+.ibanassign input[name^="use_"]:checked + fieldset.iban.unknown { background-color: #FED; }
+.ibanassign input[name^="use_"]:checked + fieldset.iban input {
+  background-color: #DFD;
+  pointer-events: none;
+  border-color: #888;
+}
+.ibanassign input[name^="use_"]:checked + fieldset.iban label.del,
+.ibanassign input[name^="use_"]:checked + fieldset.iban label.add {
+  display: none !important;
+}
+
+.ibanassign fieldset.iban label[for^="use_"] {
+  display: block;
+  float: right;
+  padding: .25em .5em;
+  background-color: #DDF;
+  border: 1pt solid;
+}
+
+.ibanassign input[name^="use_"] + fieldset.iban label[for^="use_"] { display: block; }
+.ibanassign input[name^="use_"] + fieldset.iban label[for^="use_"] + label[for^="use_"] { display: none; }
+.ibanassign input[name^="use_"]:checked + fieldset.iban label[for^="use_"] { display: none; }
+.ibanassign input[name^="use_"]:checked + fieldset.iban label[for^="use_"] + label[for^="use_"] { display: block; }
+
+.ibanassign > button {
+  position: sticky;
+  bottom: 0;
+  margin: auto;
+  display: block;
+}
+
+body.ledgers .transactions {
+  width: 98%;
+  width: calc(100% - 2em);
+  margin: auto;
+}
+body.ledgers .transactions thead {
+  position: sticky;
+  top: 0;
+  z-index: 1;
+}
+body.ledgers .transactions th {
+  text-align: left;
+  background-color: #FFF;
+}
+body.ledgers .transactions td {
+  vertical-align: top;
+  font-family: monospace;
+  font-size: 12pt;
+}
+
+body.ledgers .transactions td:nth-child(2n) {
+  background-color: #DDD;
+}
+body.ledgers .transactions td:nth-child(2n + 1) {
+  background-color: #EEE;
+}
+
+body.ledgers .transactions .date {
+  min-width: 8em;
+}
+body.ledgers .transactions .orig span {
+  display: block;
+}
+body.ledgers .transactions .amount,
+body.ledgers .transactions .balance {
+  vertical-align: bottom;
+  min-width: 6em;
+  text-align: right;
+}
+
+body.ledgers .transactions .reference textarea {
+  width: 100%;
+}
+body.ledgers .transactions .orig input[type=date],
+body.ledgers .transactions .date input[type=date],
+body.ledgers .transactions .amount input[type=number] {
+  display: block;
+  width: 100%;
+}
+
+body.ledgers .transactions .orig input:not(:checked) + label + input[type=date] {
+  background-color: #DDD;
+  border-color: #888;
+  pointer-events: none;
+}