Hello folks,
When scanning scores, I often end up with several movements in a single
MusicXML file, with bar numbered sequentially, i.e. not restarting at 1 for
each movement.
In order to help having correct bars numbers, quite needed when
proof-reading/compiling the code, I use the following bash/awk script.
Hope this helps!
—
jmenu@castor:~/bin > cat too.txt
e8 [ f8 e8 ] | % 29
f8 [ g8 g,8 ] | \barNumberCheck #30
jmenu@castor:~/bin > ./SubstractNFromLPEndOfLineBarNumbers 24 < too.txt
e8 [ f8 e8 ] | % 5
f8 [ g8 g,8 ] | \barNumberCheck # 6
—
jmenu@castor:~/bin > cat SubstractNFromLPEndOfLineBarNumbers
#!/bin/bash
# Jacques Menu - 05/06/2014
# Use awk twice in a pipe to handle "% nnn" and "\barnumber nnn" specs
# as may occur in Lilypond code obtained from MusicXML with music2xml
# if several scores were scanned at once.
# Input comes from a file, and output goes to the standard output,
# making it available to copy and paste somewhere.
# The pattern specified for \barNumberCheck is special
# because awk on Mac OS X is not gawk (and older)
# The comparison between barNumber and delta is useful
# in case some number have already been adjusted by hand,
# otherwise negative bar numbers would be obtained
# Tested on Mac OS X 10.9.3 and RedHat 6.5
# "-------------------------------------------------------------------------"
# "--> Check usage and arguments"
# "-------------------------------------------------------------------------"
USAGE="--> Usage: $0 deltaInBarNumbers"
if [ $# -ne 1 ]; then
echo ""
echo ${USAGE}
echo
exit
fi
DELTA=$1
# "-------------------------------------------------------------------------"
# "--> Go for it"
# "-------------------------------------------------------------------------"
awk -F '%' -v delta=${DELTA} \
' \
$2 ~ "[ ]*[0-9]+[ ]*" { \
barNumber = int($2); \
if (barNumber > delta) \
printf ("%s%% %d\n", $1, barNumber - delta); \
else \
printf ("%s\n", $0); \
} \
$2 !~ "[ ]*[0-9]+[ ]*" { \
printf ("%s\n", $0); \
}' \
| \
awk -F 'barNumberCheck #' -v delta=${DELTA} \
' \
$2 ~ "[ ]*[0-9]+[ ]*" { \
# printf ("--> $1 = %s\n", $1); \
# printf ("--> $2 = %s\n", $2); \
barNumber = int($2); \
# printf ("--> barNumber = %d\n", barNumber); \
if (barNumber > delta) \
printf ("%sbarNumberCheck # %d\n", $1, barNumber - delta); \
else \
printf ("%s\n", $0); \
} \
$2 !~ "[ ]*[0-9]+[ ]*" { \
printf ("%s\n", $0); \
}'
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