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49 lines
896 B
Bash
49 lines
896 B
Bash
#!/bin/sh
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# the first expression is taken from this FAQ:
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# https://perldoc.perl.org/perlfaq6.html#How-do-I-use-a-regular-expression-to-strip-C-style-comments-from-a-file%3f
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noccom() {
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[ -s ~/opt/local/bin/noccom ] || cat > ~/opt/local/bin/noccom <<EOF
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#!/usr/bin/env perl
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\$/ = undef;
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\$_ = <>;
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s{
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/\\*[^*]*\\*+([^/*][^*]*\\*+)*/
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//([^\\\\]
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[^\\n][\\n]?)*?\\n
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(
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"(?:\\\\.|[^"\\\\])*"
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'(?:\\\\.|[^'\\\\])*'
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.[^/"'\\\\]*
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)
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}{defined \$3 ? \$3 : ""}gxse;
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s{
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\\\\?\\n\\s*([{}])?\\s*(;*)\\s*(?=\\\\?\\n)
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(
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\\#[^\\n]*\\n
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"(?:\\\\.|[^"\\\\])*"
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'(?:\\\\.|[^'\\\\])*'
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.[^#/"'\\\\\\n]*
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)
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}{defined \$3 ? \$3 : (defined \$1 ? " ".\$1.\$2 : \$2)}gxse;
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s#(^|\\n)\\s+#\$1#gs;
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print;
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EOF
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perl ~/opt/local/bin/noccom "$@"
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}
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noccom "$@"
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