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64 lines
1.7 KiB
Plaintext
64 lines
1.7 KiB
Plaintext
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# SED script for preprocessing embedded headers from source
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# (S. Chamberlain markup)
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# middle pass; most of the work is done here.
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#
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# First, get rid of /*proto* markers; they've done their job in the first pass.
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# (They remain comment-introducers)
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/^\/\*proto\*/s/^\/\*proto\*/\/*/
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/^\/\*proto-internal\*/s/^\/\*proto-internal\*/\/*/
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#
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# *-*/ is an alternative (older) comment-block end. Remap for uniformity:
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s/^\*-\*\//\*\//
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#
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# {* and *} are standins for comment markers (originally embedded in .c
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# comments)---turn into real comment markers:
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s/{\*/\/\*/
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s/\*}/\*\//
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#
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# '*+++' and '*---' span a block of text that includes both header lines
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# (marked by leading '$') and explanatory text (to be comments).
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# No need to start comment at "*+++", or end it at "*---", since we're
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# already in a *proto* comment block. Just delete.
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/\*\+\+\+/d
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/\*---/d
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#
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# Any line beginning with '$' is made a line of code in the header;
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# stuff in between is comments, so *precede* each '$' line with
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# END-comment, *follow* each '$' line with START-comment; third pass later
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# eliminates empty comment blocks.
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/^\$/i\
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*/
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/^\$/a\
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/*
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#
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# Now delete the '$' markers themselves:
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/^\$/s/\$//
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#
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# *+ and *- delimit larger blocks of code, treated the same as '$' lines
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/^\*\+$/c\
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*/
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/^\*-$/c\
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/*
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#
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# '*;' introduces code which may have a single line or multiple lines;
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# it extends until the next semicolon (which is also printed).
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#
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# One-line case: (do this first; else second line address for multi-line case
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# will include random text til we happen to end a line in a proto comment with
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# a semicolon)
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/^\*;.*;$/{
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s/^\*;/*\/\
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/
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s/;$/;\
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\/*\
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/
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}
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# Multi-line case:
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/^\*;/,/.*;$/{
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s/^\*;/*\/\
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/
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s/;$/;\
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\/*\
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/
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}
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