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# This awk script parses C input files looking for lines marked "PUBLIC:"
# "EXTERN:", and "DB_LOG_RECSPEC". (PUBLIC lines are DB internal function
# prototypes and #defines, EXTERN lines are DB external function prototypes
# and #defines, and DB_LOG_RECSPEC lines are the definition of log record
# templates.)
#
# PUBLIC lines are put into two versions of per-directory include files:
# one file that contains the prototypes, and one file that contains a
# #define for the name to be processed during configuration when creating
# unique names for every global C-language symbol in the DB library.
#
# The EXTERN lines are put into two files: one of which contains prototypes
# which are always appended to the db.h file, and one of which contains a
# #define list for use when creating unique symbol names.
#
# DB_LOG_RECSPEC lines are put into PUBLIC's internal #define file.
#
# Four arguments:
# e_dfile list of EXTERN #defines
# e_pfile include file that contains EXTERN prototypes
# i_dfile list of internal (PUBLIC) #defines
# i_pfile include file that contains internal (PUBLIC) prototypes
/PUBLIC:/ {
sub(/^.*PUBLIC:[ ][ ]*/, "")
if ($0 ~ /^#if|^#ifdef|^#ifndef|^#else|^#endif/) {
print $0 >> i_pfile
print $0 >> i_dfile
next
}
pline = sprintf("%s %s", pline, $0)
if (pline ~ /\)\);/) {
sub(/^[ ]*/, "", pline)
print pline >> i_pfile
if (pline !~ db_version_unique_name) {
gsub(/[ ][ ]*__P.*/, "", pline)
sub(/^.*[ ][*]*/, "", pline)
printf("#define %s %s@DB_VERSION_UNIQUE_NAME@\n",
pline, pline) >> i_dfile
}
pline = ""
}
}
/EXTERN:/ {
sub(/^.*EXTERN:[ ][ ]*/, "")
if ($0 ~ /^#if|^#ifdef|^#ifndef|^#else|^#endif/) {
print $0 >> e_pfile
print $0 >> e_dfile
next
}
eline = sprintf("%s %s", eline, $0)
if (eline ~ /\)\);/) {
sub(/^[ ]*/, "", eline)
print eline >> e_pfile
if (eline !~ db_version_unique_name) {
gsub(/[ ][ ]*__P.*/, "", eline)
sub(/^.*[ ][*]*/, "", eline)
printf("#define %s %s@DB_VERSION_UNIQUE_NAME@\n",
eline, eline) >> e_dfile
}
eline = ""
}
}
/^DB_LOG_RECSPEC.*_desc\[\]/ {
sub(/DB_LOG_RECSPEC[ ]*/, "");
sub(/\[][ ]*=[ ]*{.*$/, "");
printf("#define\t%s %s@DB_VERSION_UNIQUE_NAME@\n", $0, $0) >> i_dfile
}
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