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1 #!/usr/bin/env bash |
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2 # |
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3 # Author: Makarius |
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4 # |
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5 # DESCRIPTION: display document (in DVI or PDF format) |
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6 |
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7 |
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8 PRG="$(basename "$0")" |
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9 |
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10 function usage() |
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11 { |
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12 echo |
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13 echo "Usage: isabelle $PRG DOCUMENT" |
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14 echo |
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15 echo " Display DOCUMENT (in DVI or PDF format)." |
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16 echo |
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17 exit 1 |
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18 } |
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19 |
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20 function fail() |
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21 { |
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22 echo "$1" >&2 |
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23 exit 2 |
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24 } |
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25 |
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26 |
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27 ## main |
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28 |
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29 [ "$#" -ne 1 -o "$1" = "-?" ] && usage |
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30 |
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31 DOCUMENT="$1"; shift |
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32 |
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33 [ -f "$DOCUMENT" ] || fail "Bad document: \"$DOCUMENT\"" |
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34 |
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35 case "$DOCUMENT" in |
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36 *.dvi) |
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37 exec "$DVI_VIEWER" "$DOCUMENT" |
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38 ;; |
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39 *.pdf) |
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40 exec "$PDF_VIEWER" "$DOCUMENT" |
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41 ;; |
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42 *) |
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43 fail "Unknown document type: \"$DOCUMENT\""; |
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44 esac |
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45 |
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