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#! /bin/sh
# (C) 1998, 2007 Free Software Foundation
# Originally by Alexandre Oliva <oliva@lsd.ic.unicamp.br>
# This gawk/shell script is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your option)
# any later version.
# Given a preprocessed C/C++ code snippet, this script will replace any
# standard header files with an actual #include <...> directive.
# Example:
# # 1 "test.c"
# # 1 "/usr/include/stdio.h" 1 3
# <snip>
# # 1 "test.c" 2
#
# main() { printf("Hello world!\n"); }
# is replaced with
# # 1 "test.c"
# #include <stdio.h>
# main() { printf("Hello world!\n"); }
# Header files whose pathnames contain any of the following patterns
# are considered as standard headers: usr/include, g++-include,
# include/g++, include/c++/<version>, gcc-lib/<anything>/include.
gawk ${EXCLUDEPATT+-vexclude="$EXCLUDEPATT"} \
${INCLUDEPATT+-vinclude="$INCLUDEPATT"} '
BEGIN {
skipping = 0;
cppline = "^# [0-9]+ \"[^\"]*/(usr/include|g\\+\\+-include|include/g\\+\\+|include/c\\+\\+/[^/]+|gcc-lib/[^\"]+/include|gcc/include)/([^\"]+)\"( [1-4])*$"
}
!skipping && $0 ~ cppline &&
(exclude == "" || $3 !~ exclude) && (include == "" || $3 ~ include) {
skipping = 1;
printf "%s\n", "#include <" gensub(cppline, "\\2", "", $0) ">"
next;
}
skipping && /^# [0-9]+ / && $3 == lastincluded {
skipping = 0;
next;
}
!skipping && /^# [0-9]+ / {
lastincluded = $3;
}
!skipping { print }
' ${1+"$@"}
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