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25 lines
891 B
Bash
25 lines
891 B
Bash
#!/bin/sh
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# reindent a libpng C source
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# COPYRIGHT: Written by Glenn Randers-Pehrson, 2016.
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# To the extent possible under law, the author has waived all copyright and
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# related or neighboring rights to this work. This work is published from:
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# United States.
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# Usage:
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# reindent inputtabsize outputtabsize inputcontinuestring outputcontinuestring
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#
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# Assumes that continued lines begin with indentation plus one space, and
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# that continued comments begin with indentation plus " *".
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#
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# eg, to change libpng coding style from 3-space indentation with 4-space
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# continuations to 4-space indentation with 2-space continuations:
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#
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# reindent 3 4 "\t " " " < example.c > example.c_4_2
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# and to restore the file back to libpng coding style
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# reindent 4 3 " " " " < example.c_4_2 > example.c_3_4
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unexpand --first-only --t $1 | \
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sed -e "/^ *$3[^\*]/{s/$3/$4/}" | \
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expand -t $2
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