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remove slang curses emulation support, as it's hopelessly broken, and it
doesn't make the binary very much smaller, especially when --enable-tiny is used git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4203 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey
parent
7f6f5a64fb
commit
c7fa5e1f9e
@ -1,5 +1,10 @@
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2007-12-17 David Lawrence Ramsey <pooka109@gmail.com>
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* configure.ac, doc/texinfo/nano.texi, nano.c (version,
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handle_sigwinch, terminal_init), winio.c (total_redraw): Remove
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slang curses emulation support, as it's hopelessly broken, and
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it doesn't make the binary very much smaller, especially when
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--enable-tiny is used.
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* nano.c (disable_signals, main): Simplify terminal handling by
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using raw mode instead of cbreak mode. This eliminates the need
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for disable_signals().
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199
configure.ac
199
configure.ac
@ -185,193 +185,6 @@ fi],
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[enable_utf8=auto])
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AC_MSG_RESULT($enable_utf8)
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AC_MSG_CHECKING([whether to use slang])
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CURSES_LIB_NAME=""
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AC_ARG_WITH(slang,
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[ --with-slang[=DIR] Use the slang library instead of curses],
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[ case "$with_slang" in
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no)
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AC_MSG_RESULT(no)
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;;
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*)
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AC_MSG_RESULT(yes)
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if test x$with_slang != xyes; then
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# Add additional search path
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LDFLAGS="-L$with_slang/lib $LDFLAGS"
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CPPFLAGS="-I$with_slang/include $CPPFLAGS"
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fi
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if test x$enable_utf8 != xno; then
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AC_CHECK_HEADER(slcurses.h,
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AC_MSG_CHECKING([for SLutf8_enable in -lslang])
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_libs=$LIBS
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LIBS="$LIBS -lslang"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLutf8_enable(1);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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CURSES_LIB_WIDE=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang"
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else
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CURSES_LIB="-lslang"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)
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# We might need the term library
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for termlib in ncurses curses termcap terminfo termlib; do
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AC_CHECK_LIB([${termlib}], tputs, [tcap="-l$termlib"])
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test -n "$tcap" && break
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done
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AC_MSG_CHECKING([for SLutf8_enable in -lslang $tcap])
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LIBS="$LIBS $tcap"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLutf8_enable(1);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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CURSES_LIB_WIDE=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang $tcap"
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else
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CURSES_LIB="-lslang $tcap"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)
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# We might need the math library
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AC_MSG_CHECKING([for SLutf8_enable in -lslang $tcap -lm])
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LIBS="$LIBS -lm"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLutf8_enable(1);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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CURSES_LIB_WIDE=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang $tcap -lm"
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else
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CURSES_LIB="-lslang $tcap -lm"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)],
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AC_MSG_WARN([*** Can not use slang when cross-compiling]))],
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AC_MSG_WARN([*** Can not use slang when cross-compiling]))],
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AC_MSG_WARN([*** Can not use slang when cross-compiling])),
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AC_MSG_ERROR([
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*** The header file slcurses.h was not found. If you wish to use
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*** slang support this header file is required. Please either
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*** install a version of slang that includes the slcurses.h file or
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*** do not call the configure script with --with-slang.]))
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fi
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if eval "test x$CURSES_LIB_NAME = x"; then
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# Reset libs if the above slang tests failed
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if test x$enable_utf8 != xno; then
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LIBS=$_libs
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fi
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AC_CHECK_HEADER(slcurses.h,
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AC_MSG_CHECKING([for SLtt_initialize in -lslang])
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_libs=$LIBS
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LIBS="$LIBS -lslang"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLtt_initialize(NULL);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang"
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else
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CURSES_LIB="-lslang"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)
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# We might need the term library
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for termlib in ncurses curses termcap terminfo termlib; do
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AC_CHECK_LIB([${termlib}], tputs, [tcap="-l$termlib"])
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test -n "$tcap" && break
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done
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AC_MSG_CHECKING([for SLtt_initialize in -lslang $tcap])
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LIBS="$LIBS $tcap"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLtt_initialize(NULL);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang $tcap"
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else
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CURSES_LIB="-lslang $tcap"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)
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# We might need the math library
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AC_MSG_CHECKING([for SLtt_initialize in -lslang $tcap -lm])
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LIBS="$LIBS -lm"
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AC_TRY_RUN([
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#include <slcurses.h>
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int main(void)
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{
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SLtt_initialize(NULL);
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return 0;
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}],
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[AC_MSG_RESULT(yes)
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AC_DEFINE(USE_SLANG, 1, [Define to use the slang wrappers for curses instead of native curses.]) slang_support=yes
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if test x$with_slang != xyes; then
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CURSES_LIB="-L${with_slang}/lib -lslang $tcap -lm"
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else
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CURSES_LIB="-lslang $tcap -lm"
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fi
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CURSES_LIB_NAME=slang],
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[AC_MSG_RESULT(no)],
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AC_MSG_WARN([*** Can not use slang when cross-compiling]))],
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AC_MSG_WARN([*** Can not use slang when cross-compiling]))],
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AC_MSG_WARN([*** Can not use slang when cross-compiling])),
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AC_MSG_ERROR([
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*** The header file slcurses.h was not found. If you wish to use
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*** slang support this header file is required. Please either
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*** install a version of slang that includes the slcurses.h file or
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*** do not call the configure script with --with-slang.]))
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fi
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if test "${_libs+set}" = "set"; then
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LIBS=$_libs
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fi
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if test x$with_slang != xyes; then
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LDFLAGS=${_ldflags}
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fi
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;;
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esac], [AC_MSG_RESULT(no)])
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AM_CONDITIONAL(USE_COLOR, test x$color_support = xyes)
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AM_CONDITIONAL(USE_NANORC, test x$nanorc_support = xyes)
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@ -466,16 +279,14 @@ else
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AC_MSG_ERROR([
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*** UTF-8 support was requested, but insufficient UTF-8 support was
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*** detected in your curses and/or C libraries. Please verify that your
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*** slang was built with UTF-8 support or your curses was built with
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*** wide character support, and that your C library was built with wide
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*** character support.])
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*** curses was built with wide character support, and that your C
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*** library was built with wide character support.])
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elif test x$enable_utf8 != xno; then
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AC_MSG_WARN([
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*** Insufficient UTF-8 support was detected in your curses and/or C
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*** libraries. If you want UTF-8 support, please verify that your slang
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*** was built with UTF-8 support or your curses was built with wide
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*** character support, and that your C library was built with wide
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*** character support.])
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*** libraries. If you want UTF-8 support, please verify that your
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*** curses was built with wide character support, and that your C
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*** library was built with wide character support.])
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fi
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fi
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@ -9,7 +9,7 @@
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@smallbook
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@set EDITION 0.1
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@set VERSION 2.0.0
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@set UPDATED 23 Aug 2007
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@set UPDATED 17 Dec 2007
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@dircategory Editors
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@direntry
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@ -842,15 +842,11 @@ Disable long line wrapping by default when nano is run as root.
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@item --enable-utf8
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Enable support for reading and writing Unicode files. This will require
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either the wide version of ncurses, or a UTF-8-enabled version of Slang.
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a wide version of curses.
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@item --disable-utf8
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Disable support for reading and writing Unicode files.
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@item --with-slang
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Compiling @code{nano} with Slang is supported, and will make the binary
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notably smaller than if compiled with ncurses or other curses libraries.
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@end table
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@contents
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31
src/nano.c
31
src/nano.c
@ -944,9 +944,6 @@ void version(void)
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#endif
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#ifdef ENABLE_UTF8
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printf(" --enable-utf8");
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#endif
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#ifdef USE_SLANG
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printf(" --with-slang");
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#endif
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printf("\n");
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}
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@ -1146,19 +1143,10 @@ RETSIGTYPE handle_sigwinch(int signal)
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if (filepart != NULL)
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unpartition_filestruct(&filepart);
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#ifdef USE_SLANG
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/* Slang curses emulation brain damage, part 1: If we just do what
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* curses does here, it'll only work properly if the resize made the
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* window smaller. Do what mutt does: Leave and immediately reenter
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* Slang screen management mode. */
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SLsmg_reset_smg();
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SLsmg_init_smg();
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#else
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/* Do the equivalent of what Minimum Profit does: Leave and
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* immediately reenter curses mode. */
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endwin();
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doupdate();
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#endif
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/* Restore the terminal to its previous state. */
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terminal_init();
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@ -1303,31 +1291,12 @@ void enable_flow_control(void)
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* control characters. */
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void terminal_init(void)
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{
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#ifdef USE_SLANG
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/* Slang curses emulation brain damage, part 2: Slang doesn't
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* implement nonl() or noecho() properly, so there's no way to
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* properly reinitialize the terminal using them. We have to save
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* the terminal state after the first call and restore it on
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* subsequent calls. */
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static struct termios newterm;
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static bool newterm_set = FALSE;
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if (!newterm_set) {
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#endif
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raw();
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nonl();
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noecho();
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disable_extended_io();
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if (ISSET(PRESERVE))
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enable_flow_control();
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#ifdef USE_SLANG
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tcgetattr(0, &newterm);
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newterm_set = TRUE;
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} else
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tcsetattr(0, TCSANOW, &newterm);
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#endif
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}
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/* Read in a character, interpret it as a shortcut or toggle if
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@ -61,15 +61,8 @@
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#define PATH_MAX 4096
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#endif
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#ifdef USE_SLANG
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/* Slang support. */
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#include <slcurses.h>
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/* Slang curses emulation brain damage, part 3: Slang doesn't define the
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* curses equivalents of the Insert or Delete keys. */
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#define KEY_DC SL_KEY_DELETE
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#define KEY_IC SL_KEY_IC
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/* Ncurses support. */
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#elif defined(HAVE_NCURSES_H)
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#else
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/* Curses support. */
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@ -3167,14 +3167,7 @@ void edit_update(update_type location)
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/* Unconditionally redraw the entire screen. */
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void total_redraw(void)
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{
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#ifdef USE_SLANG
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/* Slang curses emulation brain damage, part 4: Slang doesn't define
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* curscr. */
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SLsmg_touch_screen();
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SLsmg_refresh();
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#else
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wrefresh(curscr);
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#endif
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}
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/* Unconditionally redraw the entire screen, and then refresh it using
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