#
# MKlib_gen.sh -- generate sources from curses.h macro definitions
#
-# ($Id: MKlib_gen.sh,v 1.11 1998/01/17 14:16:52 Juan.Jose.Garcia.Ripoll Exp $)
+# ($Id: MKlib_gen.sh,v 1.62 2018/06/09 19:27:00 tom Exp $)
+#
+##############################################################################
+# Copyright (c) 1998-2017,2018 Free Software Foundation, Inc. #
+# #
+# Permission is hereby granted, free of charge, to any person obtaining a #
+# copy of this software and associated documentation files (the "Software"), #
+# to deal in the Software without restriction, including without limitation #
+# the rights to use, copy, modify, merge, publish, distribute, distribute #
+# with modifications, sublicense, and/or sell copies of the Software, and to #
+# permit persons to whom the Software is furnished to do so, subject to the #
+# following conditions: #
+# #
+# The above copyright notice and this permission notice shall be included in #
+# all copies or substantial portions of the Software. #
+# #
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, #
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL #
+# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER #
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING #
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER #
+# DEALINGS IN THE SOFTWARE. #
+# #
+# Except as contained in this notice, the name(s) of the above copyright #
+# holders shall not be used in advertising or otherwise to promote the sale, #
+# use or other dealings in this Software without prior written #
+# authorization. #
+##############################################################################
#
# The XSI Curses standard requires all curses entry points to exist as
# functions, even though many definitions would normally be shadowed
#
# This script accepts a file of prototypes on standard input. It discards
# any that don't have a `generated' comment attached. It then parses each
-# prototype (relying on the fact that none of the macros take function
+# prototype (relying on the fact that none of the macros take function
# pointer or array arguments) and generates C source from it.
#
# Here is what the pipeline stages are doing:
#
# 1. sed: extract prototypes of generated functions
# 2. sed: decorate prototypes with generated arguments a1. a2,...z
-# 3. awk: generate the calls with args matching the formals
+# 3. awk: generate the calls with args matching the formals
# 4. sed: prefix function names in prototypes so the preprocessor won't expand
# them.
# 5. cpp: macro-expand the file so the macro calls turn into C calls
# 6. awk: strip the expansion junk off the front and add the new header
-# 7. sed: squeeze spaces, strip off gen_ prefix, create needed #undef
+# 7. sed: squeeze spaces, strip off gen_ prefix.
#
-preprocessor="$1 -I../include"
+# keep the editing independent of locale:
+if test "${LANGUAGE+set}" = set; then LANGUAGE=C; export LANGUAGE; fi
+if test "${LANG+set}" = set; then LANG=C; export LANG; fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}" = set; then LC_CTYPE=C; export LC_CTYPE; fi
+if test "${LC_COLLATE+set}" = set; then LC_COLLATE=C; export LC_COLLATE; fi
+
+preprocessor="$1 -DNCURSES_WATTR_MACROS -DNCURSES_INTERNALS -I../include"
AWK="$2"
-ED1=sed1$$.sed
-ED2=sed2$$.sed
-ED3=sed3$$.sed
-AW1=awk1$$.awk
-TMP=gen$$.c
-trap "rm -f $ED1 $ED2 $ED3 $AW1 $TMP" 0 1 2 5 15
-
-(cat <<EOF
-#include <ncurses_cfg.h>
-#include <curses.h>
+USE="$3"
-DECLARATIONS
+# A patch discussed here:
+# https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
+# introduces spurious #line markers into the preprocessor output. The result
+# appears in gcc 5.0 and (with modification) in 5.1, making it necessary to
+# determine if we are using gcc, and if so, what version because the proposed
+# solution uses a nonstandard option.
+PRG=`echo "$1" | $AWK '{ sub(/^[ ]*/,""); sub(/[ ].*$/, ""); print; }' || exit 0`
+FSF=`"$PRG" --version 2>/dev/null || exit 0 | fgrep "Free Software Foundation" | head -n 1`
+ALL=`"$PRG" -dumpversion 2>/dev/null || exit 0`
+ONE=`echo "$ALL" | sed -e 's/\..*$//'`
+if test -n "$FSF" && test -n "$ALL" && test -n "$ONE" ; then
+ if test $ONE -ge 5 ; then
+ echo ".. adding -P option to work around $PRG $ALL" >&2
+ preprocessor="$preprocessor -P"
+ fi
+fi
-EOF
-cat >$ED1 <<EOF1
+PID=$$
+ED1=sed1_${PID}.sed
+ED2=sed2_${PID}.sed
+ED3=sed3_${PID}.sed
+ED4=sed4_${PID}.sed
+AW1=awk1_${PID}.awk
+AW2=awk2_${PID}.awk
+TMP=gen__${PID}.c
+trap "rm -f $ED1 $ED2 $ED3 $ED4 $AW1 $AW2 $TMP" 0 1 2 3 15
+
+ALL=$USE
+if test "$USE" = implemented ; then
+ CALL="call_"
+ cat >$ED1 <<EOF1
+/^extern.*implemented/{
+ h
+ s/GCC_DEPRECATED([^)]*)//
+ s/NCURSES_SP_NAME(\([^)]*\))/NCURSES_SP_NAME___\1/
+ h
+ s/^.*implemented:\([^ *]*\).*/P_POUNDCif_USE_\1_SUPPORT/p
+ g
+ s/^extern \([^;]*\);.*/\1/p
+ g
+ s/^.*implemented:\([^ *]*\).*/P_POUNDCendif/p
+}
/^extern.*generated/{
h
- s/^.*generated:\([^ *]*\).*/P_#if_USE_\1_SUPPORT/p
+ s/^.*generated:\([^ *]*\).*/P_POUNDCif_USE_\1_SUPPORT/p
g
s/^extern \([^;]*\);.*/\1/p
g
- s/^.*generated:\([^ *]*\).*/P_#endif/p
+ s/^.*generated:\([^ *]*\).*/P_POUNDCendif/p
}
EOF1
+else
+ CALL=""
+ cat >$ED1 <<EOF1
+/^extern.*${ALL}/{
+ h
+ s/^.*${ALL}:\([^ *]*\).*/P_POUNDCif_USE_\1_SUPPORT/p
+ g
+ s/^extern \([^;]*\);.*/\1/p
+ g
+ s/^.*${ALL}:\([^ *]*\).*/P_POUNDCendif/p
+}
+EOF1
+fi
cat >$ED2 <<EOF2
/^P_/b nc
s/*/ * /g
s/%/ , /g
s/)/ z)/
+ s/\.\.\. z)/...)/
:nc
- /(/s// ( /
+ s/(/ ( /
s/)/ )/
EOF2
cat >$ED3 <<EOF3
/^P_/{
- s/^P_#if_/#if /
+ s/^P_POUNDCif_/#if /
+ s/^P_POUNDCendif/#endif/
s/^P_//
b done
}
s/ */ /g
s/ */ /g
s/ ,/,/g
+ s/( /(/g
s/ )/)/g
s/ gen_/ /
- s/^M_/#undef /
- /^%%/s// /
+ s/^[ ]*@[ ]*@[ ]*/ /
:done
EOF3
+if test "$USE" = generated ; then
+cat >$ED4 <<EOF
+ s/^\(.*\) \(.*\) (\(.*\))\$/NCURSES_EXPORT(\1) (\2) (\3)/
+ /attr_[sg]et.* z)/s,z),z GCC_UNUSED),
+EOF
+else
+cat >$ED4 <<EOF
+/^\(.*\) \(.*\) (\(.*\))\$/ {
+ h
+ s/^\(.*\) \(.*\) (\(.*\))\$/extern \1 call_\2 (\3);/
+ p
+ g
+ s/^\(.*\) \(.*\) (\(.*\))\$/\1 call_\2 (\3)/
+ }
+s/\([^_]\)NCURSES_SP_NAME___\([a-zA-Z][a-zA-Z_]*\)/\1NCURSES_SP_NAME(\2)/g
+EOF
+fi
+
cat >$AW1 <<\EOF1
BEGIN {
skip=0;
}
- /^P_#if/ {
+/^P_POUNDCif/ {
print "\n"
print $0
skip=0;
- }
- /^P_#endif/ {
+}
+/^P_POUNDCendif/ {
print $0
skip=1;
- }
- $0 !~ /^P_/ {
+}
+$0 !~ /^P_/ {
if (skip)
print "\n"
skip=1;
- print "M_" $2
+ first=$1
+ for (i = 1; i <= NF; i++) {
+ if ( $i != "NCURSES_CONST" ) {
+ first = i;
+ break;
+ }
+ }
+ second = first + 1;
+ returnCast = "";
+ if ( $first == "chtype" ) {
+ returnType = "Chtype";
+ } else if ( $first == "SCREEN" ) {
+ returnType = "SP";
+ } else if ( $first == "WINDOW" ) {
+ returnType = "Win";
+ } else if ( $first == "attr_t" || $second == "attrset" || $second == "standout" || $second == "standend" || $second == "wattrset" || $second == "wstandout" || $second == "wstandend" ) {
+ returnType = "IntAttr";
+ returnCast = "(attr_t)";
+ } else if ( $first == "bool" || $first == "NCURSES_BOOL" ) {
+ returnType = "Bool";
+ } else if ( $second == "*" ) {
+ returnType = ($1 == "NCURSES_CONST") ? "CPtr" : "Ptr";
+ } else {
+ returnType = "Code";
+ }
+ myfunc = second;
+ for (i = second; i <= NF; i++) {
+ if ($i != "*") {
+ myfunc = i;
+ break;
+ }
+ }
+ if (using == "implemented") {
+ printf "#undef %s\n", $myfunc;
+ }
print $0;
print "{";
argcount = 1;
- if (NF == 5 && $4 == "void")
+ check = NF - 1;
+ if ($check == "void")
argcount = 0;
if (argcount != 0) {
for (i = 1; i <= NF; i++)
# suppress trace-code for functions that we cannot do properly here,
# since they return data.
dotrace = 1;
- if ($2 == "innstr")
+ if ($myfunc ~ /innstr/)
+ dotrace = 0;
+ if ($myfunc ~ /innwstr/)
+ dotrace = 0;
+
+ # workaround functions that we do not parse properly
+ if ($myfunc ~ /ripoffline/) {
dotrace = 0;
+ argcount = 2;
+ if ($myfunc ~ /NCURSES_SP_NAME/) {
+ argcount = 3;
+ }
+ }
+ if ($myfunc ~ /wunctrl/) {
+ dotrace = 0;
+ }
- call = "%%T((T_CALLED(\""
+ do_getstr = 0;
+ if ($myfunc ~ /get[n]?str/) {
+ do_getstr = 1;
+ }
+
+ call = "@@T((T_CALLED(\""
args = ""
comma = ""
num = 0;
pointer = 0;
+ va_list = 0;
+ varargs = 0;
argtype = ""
- for (i = 1; i <= NF; i++) {
+ for (i = myfunc; i <= NF; i++) {
ch = $i;
- if ( ch == "*" )
+ if ( ch == "*" ) {
pointer = 1;
- else if ( ch == "va_list" )
- pointer = 1;
- else if ( ch == "char" )
+ } else if ( ch == "va_list" ) {
+ va_list = 1;
+ } else if ( ch == "..." ) {
+ varargs = 1;
+ } else if ( ch == "char" ) {
argtype = "char";
- else if ( ch == "int" )
+ } else if ( ch == "int" ) {
argtype = "int";
- else if ( ch == "short" )
+ } else if ( ch == "short" ) {
argtype = "short";
- else if ( ch == "chtype" )
+ } else if ( ch == "chtype" ) {
argtype = "chtype";
- else if ( ch == "attr_t" || ch == "NCURSES_ATTR_T" )
+ } else if ( ch == "attr_t" || ch == "NCURSES_ATTR_T" ) {
argtype = "attr";
+ }
if ( ch == "," || ch == ")" ) {
- if (pointer) {
+ argcast = "";
+ if (va_list) {
+ call = call "%s"
+ } else if (varargs) {
+ call = call "%s"
+ } else if (pointer) {
if ( argtype == "char" ) {
- call = call "%s"
+ if (do_getstr) {
+ call = call "%p"
+ } else {
+ call = call "%s"
+ }
comma = comma "_nc_visbuf2(" num ","
pointer = 0;
- } else
+ } else {
call = call "%p"
+ comma = comma "(const void *)"
+ }
} else if (argcount != 0) {
if ( argtype == "int" || argtype == "short" ) {
call = call "%d"
} else if ( argtype != "" ) {
call = call "%s"
comma = comma "_trace" argtype "2(" num ","
+ if (argtype == "attr") {
+ argcast = "(chtype)";
+ }
} else {
call = call "%#lx"
comma = comma "(long)"
}
}
- if (ch == ",")
+ if (ch == ",") {
args = args comma "a" ++num;
- else if (argcount != 0)
- args = args comma "z"
+ } else if ( argcount != 0 ) {
+ if ( va_list ) {
+ args = args comma "\"va_list\""
+ } else if ( varargs ) {
+ args = args comma "\"...\""
+ } else {
+ args = args comma argcast "z"
+ }
+ }
call = call ch
if (pointer == 0 && argcount != 0 && argtype != "" )
args = args ")"
pointer = 0;
argtype = ""
}
- if ( i == 2 || ch == "(" )
+ if ( i == myfunc || ch == "(" )
call = call ch
}
call = call "\")"
call = call ")); "
if (dotrace)
- printf "%s", call
+ printf "%s\n\t@@", call
- if (match($0, "^void"))
+ if (match($0, "^void")) {
call = ""
- else if (dotrace)
- call = "returnCode( ";
- else
- call = "%%return ";
-
- call = call $2 "(";
- for (i = 1; i < argcount; i++)
- call = call "a" i ", ";
- if (argcount != 0)
+ } else if (dotrace) {
+ call = sprintf("return%s( ", returnType);
+ if (returnCast != "") {
+ call = call returnCast;
+ }
+ } else {
+ call = "@@return ";
+ }
+
+ call = call $myfunc "(";
+ for (i = 1; i < argcount; i++) {
+ if (i != 1)
+ call = call ", ";
+ call = call "a" i;
+ }
+ if ( argcount != 0 && $check != "..." ) {
+ if (argcount != 1)
+ call = call ", ";
call = call "z";
+ }
if (!match($0, "^void"))
call = call ") ";
- if (dotrace)
+ if (dotrace) {
call = call ")";
+ }
print call ";"
if (match($0, "^void"))
- print "%%returnVoid;"
+ print "@@returnVoid;"
print "}";
}
EOF1
-sed -n -f $ED1 | sed -f $ED2 \
-| $AWK -f $AW1 ) \
-| sed \
- -e '/^\([a-z_][a-z_]*\) /s//\1 gen_/' >$TMP
- $preprocessor $TMP 2>/dev/null \
-| $AWK '
+cat >$AW2 <<EOF1
BEGIN {
- print "/*"
- print " * DO NOT EDIT THIS FILE BY HAND!"
- print " * It is generated by MKlib_gen.sh."
- print " *"
- print " * This is a file of trivial functions generated from macro"
- print " * definitions in curses.h to satisfy the XSI Curses requirement"
- print " * that every macro also exist as a callable function."
- print " *"
- print " * It will never be linked unless you call one of the entry"
- print " * points with its normal macro definition disabled. In that"
- print " * case, if you have no shared libraries, it will indirectly"
- print " * pull most of the rest of the library into your link image."
- print " */"
- print "#include <curses.priv.h>"
- print ""
+ printf "/* This file was generated by $0 $USE */\n"
+ print ""
+ print "/*"
+ print " * DO NOT EDIT THIS FILE BY HAND!"
+ if ( "$USE" == "generated" ) {
+ print " *"
+ print " * This is a file of trivial functions generated from macro"
+ print " * definitions in curses.h to satisfy the XSI Curses requirement"
+ print " * that every macro also exist as a callable function."
+ print " *"
+ print " * It will never be linked unless you call one of the entry"
+ print " * points with its normal macro definition disabled. In that"
+ print " * case, if you have no shared libraries, it will indirectly"
+ print " * pull most of the rest of the library into your link image."
+ }
+ print " */"
+ print "#define NCURSES_ATTR_T int"
+ print "#include <ncurses_cfg.h>"
+ print ""
+ print "#undef NCURSES_NOMACROS /* _this_ file uses macros */"
+ print ""
+ print "#include <curses.priv.h>"
+ print ""
}
/^DECLARATIONS/ {start = 1; next;}
- {if (start) print $0;}
-' \
+ {
+ if (start) {
+ if ( "$USE" == "generated" ) {
+ print \$0;
+ } else if ( \$0 ~ /^[{}]?\$/ ) {
+ print \$0;
+ } else if ( \$0 ~ /;/ ) {
+ print \$0;
+ } else {
+ calls[start] = \$0;
+ print \$0;
+ start++;
+ }
+ }
+ }
+END {
+ if ( "$USE" != "generated" ) {
+ print "int main(void)"
+ print "{"
+ for (n = 1; n < start; ++n) {
+ value = calls[n];
+ if ( value !~ /P_POUNDC/ ) {
+ gsub(/[ \t]+/," ",value);
+ sub(/^[0-9a-zA-Z_]+ /,"",value);
+ sub(/^\* /,"",value);
+ gsub(/[0-9a-zA-Z_]+ \* /,"",value);
+ gsub(/ (const) /," ",value);
+ gsub(/ (int|short|attr_t|chtype|wchar_t|NCURSES_BOOL|NCURSES_OUTC|NCURSES_OUTC_sp|va_list) /," ",value);
+ gsub(/ void /,"",value);
+ sub(/^/,"call_",value);
+ gsub(/ (a[0-9]|z) /, " 0 ", value);
+ gsub(/ int[ \t]*[(][^)]+[)][(][^)]+[)]/, "0", value);
+ printf "\t%s;\n", value;
+ } else {
+ print value;
+ }
+ }
+ print " return 0;"
+ print "}"
+ }
+ }
+EOF1
+
+cat >$TMP <<EOF
+#include <ncurses_cfg.h>
+#undef NCURSES_NOMACROS
+#include <curses.h>
+#include <term.h>
+#include <unctrl.h>
+
+DECLARATIONS
+
+EOF
+
+sed -n -f $ED1 \
+| sed -e 's/NCURSES_EXPORT(\(.*\)) \(.*\) (\(.*\))/\1 \2(\3)/' \
+| sed -f $ED2 \
+| $AWK -f $AW1 using=$USE \
+| sed \
+ -e 's/ [ ]*$//g' \
+ -e 's/^\([a-zA-Z_][a-zA-Z_]*[ *]*\)/\1 gen_/' \
+ -e 's/gen_$//' \
+ -e 's/ / /g' >>$TMP
+
+$preprocessor $TMP 2>/dev/null \
+| sed \
+ -e 's/ / /g' \
+ -e 's/^ //' \
+ -e 's/_Bool/NCURSES_BOOL/g' \
+| $AWK -f $AW2 \
| sed -f $ED3 \
| sed \
-e 's/^.*T_CALLED.*returnCode( \([a-z].*) \));/ return \1;/' \
- -e 's/^.*T_CALLED.*returnCode( \((wmove.*) \));/ return \1;/'
-
+ -e 's/^.*T_CALLED.*returnCode( \((wmove.*) \));/ return \1;/' \
+ -e 's/gen_//' \
+ -e 's/^[ ]*#/#/' \
+ -e '/#ident/d' \
+ -e '/#line/d' \
+| sed -f $ED4
projects / ncurses.git / blobdiff