3psoccon.ads, [...]: Files added.

2003-10-21  Arnaud Charlet  <charlet@act-europe.fr>

	* 3psoccon.ads, 3veacodu.adb, 3vexpect.adb, 3vsoccon.ads,
	3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb, 3zsoccon.ads,
	3zsocthi.adb, 3zsocthi.ads, 50system.ads, 51system.ads,
	55system.ads, 56osinte.adb, 56osinte.ads, 56taprop.adb,
	56taspri.ads, 56tpopsp.adb, 57system.ads, 58system.ads,
	59system.ads, 5aml-tgt.adb, 5bml-tgt.adb, 5csystem.ads,
	5dsystem.ads, 5fosinte.adb, 5gml-tgt.adb, 5hml-tgt.adb,
	5isystem.ads, 5lparame.adb, 5msystem.ads, 5psystem.ads,
	5sml-tgt.adb, 5sosprim.adb, 5stpopsp.adb, 5tsystem.ads,
	5usystem.ads, 5vml-tgt.adb, 5vsymbol.adb, 5vtraent.adb,
	5vtraent.ads, 5wml-tgt.adb, 5xparame.ads, 5xsystem.ads,
	5xvxwork.ads, 5yparame.ads, 5ytiitho.adb, 5zinit.adb,
	5zml-tgt.adb, 5zparame.ads, 5ztaspri.ads, 5ztfsetr.adb,
	5zthrini.adb, 5ztiitho.adb, 5ztpopsp.adb, 7stfsetr.adb,
	7straces.adb, 7strafor.adb, 7strafor.ads, 7stratas.adb,
	a-excach.adb, a-exexda.adb, a-exexpr.adb, a-exextr.adb,
	a-exstat.adb, a-strsup.adb, a-strsup.ads, a-stwisu.adb,
	a-stwisu.ads, bld.adb, bld.ads, bld-io.adb,
	bld-io.ads, clean.adb, clean.ads, ctrl_c.c,
	erroutc.adb, erroutc.ads, errutil.adb, errutil.ads,
	err_vars.ads, final.c, g-arrspl.adb, g-arrspl.ads,
	g-boubuf.adb, g-boubuf.ads, g-boumai.ads, g-bubsor.adb,
	g-bubsor.ads, g-comver.adb, g-comver.ads, g-ctrl_c.ads,
	g-dynhta.adb, g-dynhta.ads, g-eacodu.adb, g-excact.adb,
	g-excact.ads, g-heasor.adb, g-heasor.ads, g-memdum.adb,
	g-memdum.ads, gnatclean.adb, gnatsym.adb, g-pehage.adb,
	g-pehage.ads, g-perhas.ads, gpr2make.adb, gpr2make.ads,
	gprcmd.adb, gprep.adb, gprep.ads, g-semaph.adb,
	g-semaph.ads, g-string.adb, g-string.ads, g-strspl.ads,
	g-wistsp.ads, i-vthrea.adb, i-vthrea.ads, i-vxwoio.adb,
	i-vxwoio.ads, Makefile.generic, Makefile.prolog, Makefile.rtl,
	prep.adb, prep.ads, prepcomp.adb, prepcomp.ads,
	prj-err.adb, prj-err.ads, s-boarop.ads, s-carsi8.adb,
	s-carsi8.ads, s-carun8.adb, s-carun8.ads, s-casi16.adb,
	s-casi16.ads, s-casi32.adb, s-casi32.ads, s-casi64.adb,
	s-casi64.ads, s-casuti.adb, s-casuti.ads, s-caun16.adb,
	s-caun16.ads, s-caun32.adb, s-caun32.ads, s-caun64.adb,
	s-caun64.ads, scng.adb, scng.ads, s-exnint.adb,
	s-exnllf.adb, s-exnlli.adb, s-expint.adb, s-explli.adb,
	s-geveop.adb, s-geveop.ads, s-hibaen.ads, s-htable.adb,
	s-htable.ads, sinput-c.adb, sinput-c.ads, s-memcop.ads,
	socket.c, s-purexc.ads, s-scaval.adb, s-stopoo.adb,
	s-strcom.adb, s-strcom.ads, s-strxdr.adb, s-rident.ads,
	s-thread.adb, s-thread.ads, s-tpae65.adb, s-tpae65.ads,
	s-tporft.adb, s-traent.adb, s-traent.ads, styleg.adb,
	styleg.ads, styleg-c.adb, styleg-c.ads, s-veboop.adb,
	s-veboop.ads, s-vector.ads, symbols.adb, symbols.ads,
	tb-alvms.c, tb-alvxw.c, tempdir.adb, tempdir.ads,
	vms_conv.ads, vms_conv.adb, vms_data.ads,
	vxaddr2line.adb: Files added. Merge with ACT tree.

	* 4dintnam.ads, 4mintnam.ads, 4uintnam.ads, 52system.ads,
	5dosinte.ads, 5etpopse.adb, 5mosinte.ads, 5qosinte.adb,
	5qosinte.ads, 5qstache.adb, 5qtaprop.adb, 5qtaspri.ads,
	5stpopse.adb, 5uintman.adb, 5uosinte.ads, adafinal.c,
	g-enblsp.adb, io-aux.c, scn-nlit.adb, scn-slit.adb,
	s-exnflt.ads, s-exngen.adb, s-exngen.ads, s-exnlfl.ads,
	s-exnlin.ads, s-exnsfl.ads, s-exnsin.ads, s-exnssi.ads,
	s-expflt.ads, s-expgen.adb, s-expgen.ads, s-explfl.ads,
	s-explin.ads, s-expllf.ads, s-expsfl.ads, s-expsin.ads,
	s-expssi.ads, style.adb: Files removed. Merge with ACT tree.

	* 1ic.ads, 31soccon.ads, 31soliop.ads, 3asoccon.ads,
	3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3ssoccon.ads,
	3ssoliop.ads, 3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads,
	3wsoliop.ads, 41intnam.ads, 42intnam.ads, 4aintnam.ads,
	4cintnam.ads, 4gintnam.ads, 4hexcpol.adb, 4hintnam.ads,
	4lintnam.ads, 4nintnam.ads, 4ointnam.ads, 4onumaux.ads,
	4pintnam.ads, 4sintnam.ads, 4vcaldel.adb, 4vcalend.adb,
	4vintnam.ads, 4wexcpol.adb, 4wintnam.ads, 4zintnam.ads,
	51osinte.adb, 51osinte.ads, 52osinte.adb, 52osinte.ads,
	53osinte.ads, 54osinte.ads, 5aosinte.adb, 5aosinte.ads,
	5asystem.ads, 5ataprop.adb, 5atasinf.ads, 5ataspri.ads,
	5atpopsp.adb, 5avxwork.ads, 5bosinte.adb, 5bosinte.ads,
	5bsystem.ads, 5cosinte.ads, 5esystem.ads, 5fintman.adb,
	5fosinte.ads, 5fsystem.ads, 5ftaprop.adb, 5ftasinf.ads,
	5ginterr.adb, 5gintman.adb, 5gmastop.adb, 5gosinte.ads,
	5gproinf.ads, 5gsystem.ads, 5gtaprop.adb, 5gtasinf.ads,
	5gtpgetc.adb, 5hosinte.adb, 5hosinte.ads, 5hsystem.ads,
	5htaprop.adb, 5htaspri.ads, 5htraceb.adb, 5iosinte.adb,
	5itaprop.adb, 5itaspri.ads, 5ksystem.ads, 5kvxwork.ads,
	5lintman.adb, 5lml-tgt.adb, 5losinte.ads, 5lsystem.ads,
	5mvxwork.ads, 5ninmaop.adb, 5nintman.adb, 5nosinte.ads,
	5ntaprop.adb, 5ntaspri.ads, 5ointerr.adb, 5omastop.adb,
	5oosinte.adb, 5oosinte.ads, 5oosprim.adb, 5oparame.adb,
	5osystem.ads, 5otaprop.adb, 5otaspri.ads, 5posinte.ads,
	5posprim.adb, 5pvxwork.ads, 5sintman.adb, 5sosinte.adb,
	5sosinte.ads, 5ssystem.ads, 5staprop.adb, 5stasinf.ads,
	5staspri.ads, 5svxwork.ads, 5tosinte.ads, 5vasthan.adb,
	5vinmaop.adb, 5vinterr.adb, 5vintman.adb, 5vintman.ads,
	5vmastop.adb, 5vosinte.adb, 5vosinte.ads, 5vosprim.adb,
	5vsystem.ads, 5vtaprop.adb, 5vtaspri.ads, 5vtpopde.adb,
	5vtpopde.ads, 5wgloloc.adb, 5wintman.adb, 5wmemory.adb,
	5wosprim.adb, 5wsystem.ads, 5wtaprop.adb, 5wtaspri.ads,
	5ysystem.ads, 5zinterr.adb, 5zintman.adb, 5zosinte.adb,
	5zosinte.ads, 5zosprim.adb, 5zsystem.ads, 5ztaprop.adb,
	6vcpp.adb, 6vcstrea.adb, 6vinterf.ads, 7sinmaop.adb,
	7sintman.adb, 7sosinte.adb, 7sosprim.adb, 7staprop.adb,
	7staspri.ads, 7stpopsp.adb, 7straceb.adb, 9drpc.adb,
	a-caldel.adb, a-caldel.ads, a-charac.ads, a-colien.ads,
	a-comlin.adb, adaint.c, adaint.h, ada-tree.def,
	a-diocst.adb, a-diocst.ads, a-direio.adb, a-except.adb,
	a-except.ads, a-excpol.adb, a-exctra.adb, a-exctra.ads,
	a-filico.adb, a-interr.adb, a-intsig.adb, a-intsig.ads,
	ali.adb, ali.ads, ali-util.adb, ali-util.ads,
	a-ngcefu.adb, a-ngcoty.adb, a-ngelfu.adb, a-nudira.adb,
	a-nudira.ads, a-nuflra.adb, a-nuflra.ads, a-reatim.adb,
	a-reatim.ads, a-retide.ads, a-sequio.adb, a-siocst.adb,
	a-siocst.ads, a-ssicst.adb, a-ssicst.ads, a-strbou.adb,
	a-strbou.ads, a-strfix.adb, a-strmap.adb, a-strsea.ads,
	a-strunb.adb, a-strunb.ads, a-ststio.adb, a-stunau.adb,
	a-stunau.ads, a-stwibo.adb, a-stwibo.ads, a-stwifi.adb,
	a-stwima.adb, a-stwiun.adb, a-stwiun.ads, a-tags.adb,
	a-tags.ads, a-tasatt.adb, a-taside.adb, a-teioed.adb,
	a-textio.adb, a-textio.ads, a-tienau.adb, a-tifiio.adb,
	a-tiflau.adb, a-tiflio.adb, a-tigeau.adb, a-tigeau.ads,
	a-tiinau.adb, a-timoau.adb, a-tiocst.adb, a-tiocst.ads,
	atree.adb, atree.ads, a-witeio.adb, a-witeio.ads,
	a-wtcstr.adb, a-wtcstr.ads, a-wtdeio.adb, a-wtedit.adb,
	a-wtenau.adb, a-wtflau.adb, a-wtinau.adb, a-wtmoau.adb,
	bcheck.adb, binde.adb, bindgen.adb, bindusg.adb,
	checks.adb, checks.ads, cio.c, comperr.adb,
	comperr.ads, csets.adb, cstand.adb, cstreams.c,
	debug_a.adb, debug_a.ads, debug.adb, decl.c,
	einfo.adb, einfo.ads, errout.adb, errout.ads,
	eval_fat.adb, eval_fat.ads, exp_aggr.adb, expander.adb,
	expander.ads, exp_attr.adb, exp_ch11.adb, exp_ch13.adb,
	exp_ch2.adb, exp_ch3.adb, exp_ch3.ads, exp_ch4.adb,
	exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch7.ads,
	exp_ch8.adb, exp_ch9.adb, exp_code.adb, exp_dbug.adb,
	exp_dbug.ads, exp_disp.adb, exp_dist.adb, expect.c,
	exp_fixd.adb, exp_imgv.adb, exp_intr.adb, exp_pakd.adb,
	exp_prag.adb, exp_strm.adb, exp_strm.ads, exp_tss.adb,
	exp_tss.ads, exp_util.adb, exp_util.ads, exp_vfpt.adb,
	fe.h, fmap.adb, fmap.ads, fname.adb,
	fname.ads, fname-uf.adb, fname-uf.ads, freeze.adb,
	freeze.ads, frontend.adb, g-awk.adb, g-awk.ads,
	g-busora.adb, g-busora.ads, g-busorg.adb, g-busorg.ads,
	g-casuti.adb, g-casuti.ads, g-catiio.adb, g-catiio.ads,
	g-cgi.adb, g-cgi.ads, g-cgicoo.adb, g-cgicoo.ads,
	g-cgideb.adb, g-cgideb.ads, g-comlin.adb, g-comlin.ads,
	g-crc32.adb, g-crc32.ads, g-debpoo.adb, g-debpoo.ads,
	g-debuti.adb, g-debuti.ads, g-diopit.adb, g-diopit.ads,
	g-dirope.adb, g-dirope.ads, g-dyntab.adb, g-dyntab.ads,
	g-except.ads, g-exctra.adb, g-exctra.ads, g-expect.adb,
	g-expect.ads, g-hesora.adb, g-hesora.ads, g-hesorg.adb,
	g-hesorg.ads, g-htable.adb, g-htable.ads, gigi.h,
	g-io.adb, g-io.ads, g-io_aux.adb, g-io_aux.ads,
	g-locfil.adb, g-locfil.ads, g-md5.adb, g-md5.ads,
	gmem.c, gnat1drv.adb, gnatbind.adb, gnatchop.adb,
	gnatcmd.adb, gnatfind.adb, gnatkr.adb, gnatlbr.adb,
	gnatlink.adb, gnatls.adb, gnatmake.adb, gnatmem.adb,
	gnatname.adb, gnatprep.adb, gnatprep.ads, gnatpsta.adb,
	gnatxref.adb, g-os_lib.adb, g-os_lib.ads, g-regexp.adb,
	g-regexp.ads, g-regist.adb, g-regist.ads, g-regpat.adb,
	g-regpat.ads, g-soccon.ads, g-socket.adb, g-socket.ads,
	g-socthi.adb, g-socthi.ads, g-soliop.ads, g-souinf.ads,
	g-speche.adb, g-speche.ads, g-spipat.adb, g-spipat.ads,
	g-spitbo.adb, g-spitbo.ads, g-sptabo.ads, g-sptain.ads,
	g-sptavs.ads, g-table.adb, g-table.ads, g-tasloc.adb,
	g-tasloc.ads, g-thread.adb, g-thread.ads, g-traceb.adb,
	g-traceb.ads, g-trasym.adb, g-trasym.ads, hostparm.ads,
	i-c.ads, i-cobol.adb, i-cpp.adb, i-cstrea.ads,
	i-cstrin.adb, i-cstrin.ads, impunit.adb, init.c,
	inline.adb, interfac.ads, i-pacdec.ads, itypes.adb,
	itypes.ads, i-vxwork.ads, lang.opt, lang-specs.h,
	layout.adb, lib.adb, lib.ads, lib-list.adb,
	lib-load.adb, lib-load.ads, lib-sort.adb, lib-util.adb,
	lib-writ.adb, lib-writ.ads, lib-xref.adb, lib-xref.ads,
	link.c, live.adb, make.adb, make.ads,
	Makefile.adalib, Makefile.in, Make-lang.in, makeusg.adb,
	mdll.adb, mdll-fil.adb, mdll-fil.ads, mdll-utl.adb,
	mdll-utl.ads, memroot.adb, memroot.ads, memtrack.adb,
	misc.c, mkdir.c, mlib.adb, mlib.ads,
	mlib-fil.adb, mlib-fil.ads, mlib-prj.adb, mlib-prj.ads,
	mlib-tgt.adb, mlib-tgt.ads, mlib-utl.adb, mlib-utl.ads,
	namet.adb, namet.ads, namet.h, nlists.ads,
	nlists.h, nmake.adt, opt.adb, opt.ads,
	osint.adb, osint.ads, osint-b.adb, osint-c.adb,
	par.adb, par-ch10.adb, par-ch11.adb, par-ch2.adb,
	par-ch3.adb, par-ch4.adb, par-ch5.adb, par-ch6.adb,
	par-ch9.adb, par-endh.adb, par-labl.adb, par-load.adb,
	par-prag.adb, par-sync.adb, par-tchk.adb, par-util.adb,
	prj.adb, prj.ads, prj-attr.adb, prj-attr.ads,
	prj-com.adb, prj-com.ads, prj-dect.adb, prj-dect.ads,
	prj-env.adb, prj-env.ads, prj-ext.adb, prj-ext.ads,
	prj-makr.adb, prj-makr.ads, prj-nmsc.adb, prj-nmsc.ads,
	prj-pars.adb, prj-pars.ads, prj-part.adb, prj-part.ads,
	prj-pp.adb, prj-pp.ads, prj-proc.adb, prj-proc.ads,
	prj-strt.adb, prj-strt.ads, prj-tree.adb, prj-tree.ads,
	prj-util.adb, prj-util.ads, raise.c, raise.h,
	repinfo.adb, repinfo.h, restrict.adb, restrict.ads,
	rident.ads, rtsfind.adb, rtsfind.ads, s-addima.ads,
	s-arit64.adb, s-assert.adb, s-assert.ads, s-atacco.adb,
	s-atacco.ads, s-auxdec.adb, s-auxdec.ads, s-bitops.adb,
	scans.ads, scn.adb, scn.ads, s-crc32.adb,
	s-crc32.ads, s-direio.adb, sem.adb, sem.ads,
	sem_aggr.adb, sem_attr.adb, sem_attr.ads, sem_case.adb,
	sem_case.ads, sem_cat.adb, sem_cat.ads, sem_ch10.adb,
	sem_ch11.adb, sem_ch12.adb, sem_ch12.ads, sem_ch13.adb,
	sem_ch13.ads, sem_ch3.adb, sem_ch3.ads, sem_ch4.adb,
	sem_ch5.adb, sem_ch5.ads, sem_ch6.adb, sem_ch6.ads,
	sem_ch7.adb, sem_ch7.ads, sem_ch8.adb, sem_ch8.ads,
	sem_ch9.adb, sem_disp.adb, sem_disp.ads, sem_dist.adb,
	sem_elab.adb, sem_eval.adb, sem_eval.ads, sem_intr.adb,
	sem_maps.adb, sem_mech.adb, sem_prag.adb, sem_prag.ads,
	sem_res.adb, sem_res.ads, sem_type.adb, sem_type.ads,
	sem_util.adb, sem_util.ads, sem_warn.adb, s-errrep.adb,
	s-errrep.ads, s-exctab.adb, s-exctab.ads, s-exnint.ads,
	s-exnllf.ads, s-exnlli.ads, s-expint.ads, s-explli.ads,
	s-expuns.ads, s-fatflt.ads, s-fatgen.adb, s-fatgen.ads,
	s-fatlfl.ads, s-fatllf.ads, s-fatsfl.ads, s-fileio.adb,
	s-fileio.ads, s-finimp.adb, s-finimp.ads, s-finroo.adb,
	s-finroo.ads, sfn_scan.adb, s-gloloc.adb, s-gloloc.ads,
	s-imgdec.adb, s-imgenu.adb, s-imgrea.adb, s-imgwch.adb,
	sinfo.adb, sinfo.ads, s-inmaop.ads, sinput.adb,
	sinput.ads, sinput-d.adb, sinput-l.adb, sinput-l.ads,
	sinput-p.adb, sinput-p.ads, s-interr.adb, s-interr.ads,
	s-intman.ads, s-maccod.ads, s-mastop.adb, s-mastop.ads,
	s-memory.adb, s-memory.ads, snames.adb, snames.ads,
	snames.h, s-osprim.ads, s-parame.ads, s-parint.ads,
	s-pooloc.adb, s-pooloc.ads, s-poosiz.adb, sprint.adb,
	s-proinf.ads, s-scaval.ads, s-secsta.adb, s-secsta.ads,
	s-sequio.adb, s-shasto.adb, s-shasto.ads, s-soflin.ads,
	s-stache.adb, s-stache.ads, s-stalib.adb, s-stalib.ads,
	s-stoele.ads, s-stopoo.ads, s-stratt.adb, s-stratt.ads,
	s-strops.adb, s-strops.ads, s-taasde.adb, s-taasde.ads,
	s-tadeca.adb, s-tadeca.ads, s-tadert.adb, s-tadert.ads,
	s-taenca.adb, s-taenca.ads, s-taprob.adb, s-taprob.ads,
	s-taprop.ads, s-tarest.adb, s-tarest.ads, s-tasdeb.adb,
	s-tasdeb.ads, s-tasinf.adb, s-tasinf.ads, s-tasini.adb,
	s-tasini.ads, s-taskin.adb, s-taskin.ads, s-tasque.adb,
	s-tasque.ads, s-tasren.adb, s-tasren.ads, s-tasres.ads,
	s-tassta.adb, s-tassta.ads, s-tasuti.adb, s-tasuti.ads,
	s-tataat.adb, s-tataat.ads, s-tpinop.adb, s-tpinop.ads,
	s-tpoben.adb, s-tpoben.ads, s-tpobop.adb, s-tpobop.ads,
	s-tposen.adb, s-tposen.ads, s-traceb.adb, s-traceb.ads,
	stringt.adb, stringt.ads, stringt.h, style.ads,
	stylesw.adb, stylesw.ads, s-unstyp.ads, s-vaflop.ads,
	s-valrea.adb, s-valuti.adb, s-vercon.adb, s-vmexta.adb,
	s-wchcnv.ads, s-wchcon.ads, s-widcha.adb, switch.adb,
	switch.ads, switch-b.adb, switch-c.adb, switch-m.adb,
	s-wwdcha.adb, s-wwdwch.adb, sysdep.c, system.ads,
	table.adb, table.ads, targparm.adb, targparm.ads,
	targtyps.c, tbuild.adb, tbuild.ads, tracebak.c,
	trans.c, tree_io.adb, treepr.adb, treeprs.adt,
	ttypes.ads, types.ads, types.h, uintp.adb,
	uintp.ads, uintp.h, uname.adb, urealp.adb,
	urealp.ads, urealp.h, usage.adb, utils2.c,
	utils.c, validsw.adb, validsw.ads, widechar.adb,
	xeinfo.adb, xnmake.adb, xref_lib.adb, xref_lib.ads,
	xr_tabls.adb, xr_tabls.ads, xtreeprs.adb, xsnames.adb,
	einfo.h, sinfo.h, treeprs.ads, nmake.ads, nmake.adb,
	gnatvsn.ads: Merge with ACT tree.

	* gnatvsn.adb: Rewritten in a simpler and more efficient way.

From-SVN: r72751

1 files changed, 784 insertions, 0 deletions

diff --git a/gcc/ada/styleg.adb b/gcc/ada/styleg.adb
new file mode 100644
index 00000000000..e382daffd78
--- /dev/null
+++ b/gcc/ada/styleg.adb
@@ -0,0 +1,784 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                               S T Y L E G                                --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1992-2003 Free Software Foundation, Inc.          --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This version of the Style package implements the standard GNAT style
+--  checking rules. For documentation of these rules, see comments on the
+--  individual procedures.
+
+with Casing;  use Casing;
+with Csets;    use Csets;
+with Err_Vars; use Err_Vars;
+with Opt;      use Opt;
+with Scans;    use Scans;
+with Sinput;   use Sinput;
+with Stylesw;  use Stylesw;
+
+package body Styleg is
+
+   use ASCII;
+
+   -----------------------
+   -- Local Subprograms --
+   -----------------------
+
+   procedure Check_No_Space_After;
+   --  Checks that there is a non-white space character after the current
+   --  token, or white space followed by a comment, or the end of line.
+   --  Issue error message if not.
+
+   procedure Check_No_Space_Before;
+   --  Check that token is first token on line, or else is not preceded
+   --  by white space. Signal error of space not allowed if not.
+
+   function Determine_Token_Casing return Casing_Type;
+
+   procedure Error_Space_Not_Allowed (S : Source_Ptr);
+   --  Posts an error message indicating that a space is not allowed
+   --  at the given source location.
+
+   procedure Error_Space_Required (S : Source_Ptr);
+   --  Posts an error message indicating that a space is required at
+   --  the given source location.
+
+   function Is_White_Space (C : Character) return Boolean;
+   pragma Inline (Is_White_Space);
+   --  Returns True for space, HT, VT or FF, False otherwise
+
+   procedure Require_Following_Space;
+   pragma Inline (Require_Following_Space);
+   --  Require token to be followed by white space. Used only if in GNAT
+   --  style checking mode.
+
+   procedure Require_Preceding_Space;
+   pragma Inline (Require_Preceding_Space);
+   --  Require token to be preceded by white space. Used only if in GNAT
+   --  style checking mode.
+
+   ----------------------
+   -- Check_Abs_Or_Not --
+   ----------------------
+
+   --  In check tokens mode (-gnatyt), ABS/NOT must be followed by a space
+
+   procedure Check_Abs_Not is
+   begin
+      if Style_Check_Tokens then
+         if Source (Scan_Ptr) > ' ' then
+            Error_Space_Required (Scan_Ptr);
+         end if;
+      end if;
+   end Check_Abs_Not;
+
+   ----------------------
+   -- Check_Apostrophe --
+   ----------------------
+
+   --  Do not allow space before or after apostrophe
+
+   procedure Check_Apostrophe is
+   begin
+      if Style_Check_Tokens then
+         Check_No_Space_After;
+      end if;
+   end Check_Apostrophe;
+
+   -----------------
+   -- Check_Arrow --
+   -----------------
+
+   --  In check tokens mode (-gnatys), arrow must be surrounded by spaces
+
+   procedure Check_Arrow is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Arrow;
+
+   --------------------------
+   -- Check_Attribute_Name --
+   --------------------------
+
+   --  In check attribute casing mode (-gnatya), attribute names must be
+   --  mixed case, i.e. start with an upper case letter, and otherwise
+   --  lower case, except after an underline character.
+
+   procedure Check_Attribute_Name (Reserved : Boolean) is
+      pragma Warnings (Off, Reserved);
+
+   begin
+      if Style_Check_Attribute_Casing then
+         if Determine_Token_Casing /= Mixed_Case then
+            Error_Msg_SC ("(style) bad capitalization, mixed case required");
+         end if;
+      end if;
+   end Check_Attribute_Name;
+
+   ---------------------------
+   -- Check_Binary_Operator --
+   ---------------------------
+
+   --  In check token mode (-gnatyt), binary operators other than the special
+   --  case of exponentiation require surrounding space characters.
+
+   procedure Check_Binary_Operator is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Binary_Operator;
+
+   ---------------
+   -- Check_Box --
+   ---------------
+
+   --  In check token mode (-gnatyt), box must be preceded by a space or by
+   --  a left parenthesis. Spacing checking on the surrounding tokens takes
+   --  care of the remaining checks.
+
+   procedure Check_Box is
+   begin
+      if Style_Check_Tokens then
+         if Prev_Token /= Tok_Left_Paren then
+            Require_Preceding_Space;
+         end if;
+      end if;
+   end Check_Box;
+
+   -----------------
+   -- Check_Colon --
+   -----------------
+
+   --  In check token mode (-gnatyt), colon must be surrounded by spaces
+
+   procedure Check_Colon is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Colon;
+
+   -----------------------
+   -- Check_Colon_Equal --
+   -----------------------
+
+   --  In check token mode (-gnatyt), := must be surrounded by spaces
+
+   procedure Check_Colon_Equal is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Colon_Equal;
+
+   -----------------
+   -- Check_Comma --
+   -----------------
+
+   --  In check token mode (-gnatyt), comma must be either the first
+   --  token on a line, or be preceded by a non-blank character.
+   --  It must also always be followed by a blank.
+
+   procedure Check_Comma is
+   begin
+      if Style_Check_Tokens then
+         Check_No_Space_Before;
+
+         if Source (Scan_Ptr) > ' ' then
+            Error_Space_Required (Scan_Ptr);
+         end if;
+      end if;
+   end Check_Comma;
+
+   -------------------
+   -- Check_Comment --
+   -------------------
+
+   --  In check comment mode (-gnatyc) there are several requirements on the
+   --  format of comments. The following are permissible comment formats:
+
+   --    1. Any comment that is not at the start of a line, i.e. where the
+   --       initial minuses are not the first non-blank characters on the
+   --       line must have at least one blank after the second minus.
+
+   --    2. A row of all minuses of any length is permitted (see procedure
+   --       box above in the source of this routine).
+
+   --    3. A comment line starting with two minuses and a space, and ending
+   --       with a space and two minuses. Again see the procedure title box
+   --       immediately above in the source.
+
+   --    4. A full line comment where two spaces follow the two minus signs.
+   --       This is the normal comment format in GNAT style, as typified by
+   --       the comments you are reading now.
+
+   --    5. A full line comment where the first character after the second
+   --       minus is a special character, i.e. a character in the ASCII
+   --       range 16#21#..16#2F# or 16#3A#..16#3F#. This allows special
+   --       comments, such as those generated by gnatprep, or those that
+   --       appear in the SPARK annotation language to be accepted.
+   --
+   --       Note: for GNAT internal files (-gnatg switch set on for the
+   --       compilation), the only special sequence recognized and allowed
+   --       is --! as generated by gnatprep.
+
+   procedure Check_Comment is
+      S : Source_Ptr;
+      C : Character;
+
+      function Is_Box_Comment return Boolean;
+      --  Returns True if the last two characters on the line are -- which
+      --  characterizes a box comment (as for example follows this spec).
+
+      --------------------
+      -- Is_Box_Comment --
+      --------------------
+
+      function Is_Box_Comment return Boolean is
+         S : Source_Ptr;
+
+      begin
+         S := Scan_Ptr + 3;
+         while Source (S) not in Line_Terminator loop
+            S := S + 1;
+         end loop;
+
+         return Source (S - 1) = '-' and then Source (S - 2) = '-';
+      end Is_Box_Comment;
+
+   --  Start of processing for Check_Comment
+
+   begin
+      --  Can never have a non-blank character preceding the first minus
+
+      if Style_Check_Comments then
+         if Scan_Ptr > Source_First (Current_Source_File)
+           and then Source (Scan_Ptr - 1) > ' '
+         then
+            Error_Msg_S ("(style) space required");
+         end if;
+      end if;
+
+      --  For a comment that is not at the start of the line, the only
+      --  requirement is that we cannot have a non-blank character after
+      --  the second minus sign.
+
+      if Scan_Ptr /= First_Non_Blank_Location then
+         if Style_Check_Comments then
+            if Source (Scan_Ptr + 2) > ' ' then
+               Error_Msg ("(style) space required", Scan_Ptr + 2);
+            end if;
+         end if;
+
+         return;
+
+      --  Case of a comment that is at the start of a line
+
+      else
+         --  First check, must be in appropriately indented column
+
+         if Style_Check_Indentation /= 0 then
+            if Start_Column rem Style_Check_Indentation /= 0 then
+               Error_Msg_S ("(style) bad column");
+               return;
+            end if;
+         end if;
+
+         --  If we are not checking comments, nothing to do
+
+         if not Style_Check_Comments then
+            return;
+         end if;
+
+         --  Case of not followed by a blank. Usually wrong, but there are
+         --  some exceptions that we permit.
+
+         if Source (Scan_Ptr + 2) /= ' ' then
+            C := Source (Scan_Ptr + 2);
+
+            --  Case of -- all on its own on a line is OK
+
+            if C < ' ' then
+               return;
+            end if;
+
+            --  Case of --x, x special character is OK (gnatprep/SPARK/etc.)
+            --  This is not permitted in internal GNAT implementation units
+            --  except for the case of --! as used by gnatprep output.
+
+            if GNAT_Mode then
+               if C = '!' then
+                  return;
+               end if;
+
+            else
+               if Character'Pos (C) in 16#21# .. 16#2F#
+                    or else
+                  Character'Pos (C) in 16#3A# .. 16#3F#
+               then
+                  return;
+               end if;
+            end if;
+
+            --  The only other case in which we allow a character after
+            --  the -- other than a space is when we have a row of minus
+            --  signs (case of header lines for a box comment for example).
+
+            S := Scan_Ptr + 2;
+            while Source (S) >= ' ' loop
+               if Source (S) /= '-' then
+                  if Is_Box_Comment then
+                     Error_Space_Required (Scan_Ptr + 2);
+                  else
+                     Error_Msg ("(style) two spaces required", Scan_Ptr + 2);
+                  end if;
+
+                  return;
+               end if;
+
+               S := S + 1;
+            end loop;
+
+         --  If we are followed by a blank, then the comment is OK if the
+         --  character following this blank is another blank or a format
+         --  effector.
+
+         elsif Source (Scan_Ptr + 3) <= ' ' then
+            return;
+
+         --  Here is the case where we only have one blank after the two
+         --  minus signs, which is an error unless the line ends with two
+         --  minus signs, the case of a box comment.
+
+         elsif not Is_Box_Comment then
+            Error_Space_Required (Scan_Ptr + 3);
+         end if;
+      end if;
+   end Check_Comment;
+
+   -------------------
+   -- Check_Dot_Dot --
+   -------------------
+
+   --  In check token mode (-gnatyt), colon must be surrounded by spaces
+
+   procedure Check_Dot_Dot is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Dot_Dot;
+
+   -----------------------------------
+   -- Check_Exponentiation_Operator --
+   -----------------------------------
+
+   --  No spaces are required for the ** operator in GNAT style check mode
+
+   procedure Check_Exponentiation_Operator is
+   begin
+      null;
+   end Check_Exponentiation_Operator;
+
+   --------------
+   -- Check_HT --
+   --------------
+
+   --  In check horizontal tab mode (-gnatyh), tab characters are not allowed
+
+   procedure Check_HT is
+   begin
+      if Style_Check_Horizontal_Tabs then
+         Error_Msg_S ("(style) horizontal tab not allowed");
+      end if;
+   end Check_HT;
+
+   -----------------------
+   -- Check_Indentation --
+   -----------------------
+
+   --  In check indentation mode (-gnatyn for n a digit), a new statement or
+   --  declaration is required to start in a column that is a multiple of the
+   --  indentiation amount.
+
+   procedure Check_Indentation is
+   begin
+      if Style_Check_Indentation /= 0 then
+         if Token_Ptr = First_Non_Blank_Location
+           and then Start_Column rem Style_Check_Indentation /= 0
+         then
+            Error_Msg_SC ("(style) bad indentation");
+         end if;
+      end if;
+   end Check_Indentation;
+
+   ----------------------
+   -- Check_Left_Paren --
+   ----------------------
+
+   --  In tone check mode (-gnatyt), left paren must not be preceded by an
+   --  identifier character or digit (a separating space is required) and
+   --  may never be followed by a space.
+
+   procedure Check_Left_Paren is
+   begin
+      if Style_Check_Tokens then
+         if Token_Ptr > Source_First (Current_Source_File)
+           and then Identifier_Char (Source (Token_Ptr - 1))
+         then
+            Error_Space_Required (Token_Ptr);
+         end if;
+
+         Check_No_Space_After;
+      end if;
+   end Check_Left_Paren;
+
+   ---------------------------
+   -- Check_Line_Terminator --
+   ---------------------------
+
+   --  In check blanks at end mode (-gnatyb), lines may not end with a
+   --  trailing space.
+
+   --  In check max line length mode (-gnatym), the line length must
+   --  not exceed the permitted maximum value.
+
+   --  In check form feeds mode (-gnatyf), the line terminator may not
+   --  be either of the characters FF or VT.
+
+   procedure Check_Line_Terminator (Len : Int) is
+      S : Source_Ptr;
+
+   begin
+      --  Check FF/VT terminators
+
+      if Style_Check_Form_Feeds then
+         if Source (Scan_Ptr) = ASCII.FF then
+            Error_Msg_S ("(style) form feed not allowed");
+
+         elsif Source (Scan_Ptr) = ASCII.VT then
+            Error_Msg_S ("(style) vertical tab not allowed");
+         end if;
+      end if;
+
+      --  We are now possibly going to check for trailing spaces and maximum
+      --  line length. There is no point in doing this if the current line is
+      --  empty. It is actually wrong in the case of trailing spaces, because
+      --  we scan backwards for this purpose, so we would end up looking at a
+      --  different line, or even at invalid buffer locations if we have the
+      --  first source line at hand.
+
+      if Len = 0 then
+         return;
+      end if;
+
+      --  Check trailing space
+
+      if Style_Check_Blanks_At_End then
+         if Scan_Ptr >= First_Non_Blank_Location then
+            if Is_White_Space (Source (Scan_Ptr - 1)) then
+               S := Scan_Ptr - 1;
+
+               while Is_White_Space (Source (S - 1)) loop
+                  S := S - 1;
+               end loop;
+
+               Error_Msg ("(style) trailing spaces not permitted", S);
+            end if;
+         end if;
+      end if;
+
+      --  Check max line length
+
+      if Style_Check_Max_Line_Length then
+         if Len > Style_Max_Line_Length then
+            Error_Msg
+              ("(style) this line is too long",
+               Current_Line_Start + Source_Ptr (Style_Max_Line_Length));
+         end if;
+      end if;
+
+   end Check_Line_Terminator;
+
+   --------------------------
+   -- Check_No_Space_After --
+   --------------------------
+
+   procedure Check_No_Space_After is
+      S : Source_Ptr;
+
+   begin
+      if Is_White_Space (Source (Scan_Ptr)) then
+
+         --  Allow one or more spaces if followed by comment
+
+         S := Scan_Ptr + 1;
+         loop
+            if Source (S) = '-' and then Source (S + 1) = '-' then
+               return;
+
+            elsif Is_White_Space (Source (S)) then
+               S := S + 1;
+
+            else
+               exit;
+            end if;
+         end loop;
+
+         Error_Space_Not_Allowed (Scan_Ptr);
+      end if;
+   end Check_No_Space_After;
+
+   ---------------------------
+   -- Check_No_Space_Before --
+   ---------------------------
+
+   procedure Check_No_Space_Before is
+   begin
+      if Token_Ptr > First_Non_Blank_Location
+         and then Source (Token_Ptr - 1) <= ' '
+      then
+         Error_Space_Not_Allowed (Token_Ptr - 1);
+      end if;
+   end Check_No_Space_Before;
+
+   -----------------------
+   -- Check_Pragma_Name --
+   -----------------------
+
+   --  In check pragma casing mode (-gnatyp), pragma names must be mixed
+   --  case, i.e. start with an upper case letter, and otherwise lower case,
+   --  except after an underline character.
+
+   procedure Check_Pragma_Name is
+   begin
+      if Style_Check_Pragma_Casing then
+         if Determine_Token_Casing /= Mixed_Case then
+            Error_Msg_SC ("(style) bad capitalization, mixed case required");
+         end if;
+      end if;
+   end Check_Pragma_Name;
+
+   -----------------------
+   -- Check_Right_Paren --
+   -----------------------
+
+   --  In check tokens mode (-gnatyt), right paren must never be preceded by
+   --  a space unless it is the initial non-blank character on the line.
+
+   procedure Check_Right_Paren is
+   begin
+      if Style_Check_Tokens then
+         Check_No_Space_Before;
+      end if;
+   end Check_Right_Paren;
+
+   ---------------------
+   -- Check_Semicolon --
+   ---------------------
+
+   --  In check tokens mode (-gnatyt), semicolon does not permit a preceding
+   --  space and a following space is required.
+
+   procedure Check_Semicolon is
+   begin
+      if Style_Check_Tokens then
+         Check_No_Space_Before;
+
+         if Source (Scan_Ptr) > ' ' then
+            Error_Space_Required (Scan_Ptr);
+         end if;
+      end if;
+   end Check_Semicolon;
+
+   ----------------
+   -- Check_Then --
+   ----------------
+
+   --  In check if then layout mode (-gnatyi), we expect a THEN keyword
+   --  to appear either on the same line as the IF, or on a separate line
+   --  after multiple conditions. In any case, it may not appear on the
+   --  line immediately following the line with the IF.
+
+   procedure Check_Then (If_Loc : Source_Ptr) is
+   begin
+      if Style_Check_If_Then_Layout then
+         if Get_Physical_Line_Number (Token_Ptr) =
+            Get_Physical_Line_Number (If_Loc) + 1
+         then
+            Error_Msg_SC ("(style) misplaced THEN");
+         end if;
+      end if;
+   end Check_Then;
+
+   -------------------------------
+   -- Check_Unary_Plus_Or_Minus --
+   -------------------------------
+
+   --  In check tokem mode (-gnatyt), unary plus or minus must not be
+   --  followed by a space.
+
+   procedure Check_Unary_Plus_Or_Minus is
+   begin
+      if Style_Check_Tokens then
+         Check_No_Space_After;
+      end if;
+   end Check_Unary_Plus_Or_Minus;
+
+   ------------------------
+   -- Check_Vertical_Bar --
+   ------------------------
+
+   --  In check token mode (-gnatyt), vertical bar must be surrounded by spaces
+
+   procedure Check_Vertical_Bar is
+   begin
+      if Style_Check_Tokens then
+         Require_Preceding_Space;
+         Require_Following_Space;
+      end if;
+   end Check_Vertical_Bar;
+
+   ----------------------------
+   -- Determine_Token_Casing --
+   ----------------------------
+
+   function Determine_Token_Casing return Casing_Type is
+   begin
+      return Determine_Casing (Source (Token_Ptr .. Scan_Ptr - 1));
+   end Determine_Token_Casing;
+
+   -----------------------------
+   -- Error_Space_Not_Allowed --
+   -----------------------------
+
+   procedure Error_Space_Not_Allowed (S : Source_Ptr) is
+   begin
+      Error_Msg ("(style) space not allowed", S);
+   end Error_Space_Not_Allowed;
+
+   --------------------------
+   -- Error_Space_Required --
+   --------------------------
+
+   procedure Error_Space_Required (S : Source_Ptr) is
+   begin
+      Error_Msg ("(style) space required", S);
+   end Error_Space_Required;
+
+   --------------------
+   -- Is_White_Space --
+   --------------------
+
+   function Is_White_Space (C : Character) return Boolean is
+   begin
+      return C = ' ' or else C = HT;
+   end Is_White_Space;
+
+   -----------------
+   -- No_End_Name --
+   -----------------
+
+   --  In check end/exit labels mode (-gnatye), always require the name of
+   --  a subprogram or package to be present on the END, so this is an error.
+
+   procedure No_End_Name (Name : Node_Id) is
+   begin
+      if Style_Check_End_Labels then
+         Error_Msg_Node_1 := Name;
+         Error_Msg_SP ("(style) `END &` required");
+      end if;
+   end No_End_Name;
+
+   ------------------
+   -- No_Exit_Name --
+   ------------------
+
+   --  In check end/exit labels mode (-gnatye), always require the name of
+   --  the loop to be present on the EXIT when exiting a named loop.
+
+   procedure No_Exit_Name (Name : Node_Id) is
+   begin
+      if Style_Check_End_Labels then
+         Error_Msg_Node_1 := Name;
+         Error_Msg_SP ("(style) `EXIT &` required");
+      end if;
+   end No_Exit_Name;
+
+   ----------------------------
+   -- Non_Lower_Case_Keyword --
+   ----------------------------
+
+   --  In check casing mode (-gnatyk), reserved keywords must be be spelled
+   --  in all lower case (excluding keywords range, access, delta and digits
+   --  used as attribute designators).
+
+   procedure Non_Lower_Case_Keyword is
+   begin
+      if Style_Check_Keyword_Casing then
+         Error_Msg_SC ("(style) reserved words must be all lower case");
+      end if;
+   end Non_Lower_Case_Keyword;
+
+   -----------------------------
+   -- Require_Following_Space --
+   -----------------------------
+
+   procedure Require_Following_Space is
+   begin
+      if Source (Scan_Ptr) > ' ' then
+         Error_Space_Required (Scan_Ptr);
+      end if;
+   end Require_Following_Space;
+
+   -----------------------------
+   -- Require_Preceding_Space --
+   -----------------------------
+
+   procedure Require_Preceding_Space is
+   begin
+      if Token_Ptr > Source_First (Current_Source_File)
+        and then Source (Token_Ptr - 1) > ' '
+      then
+         Error_Space_Required (Token_Ptr);
+      end if;
+   end Require_Preceding_Space;
+
+   ---------------------
+   -- RM_Column_Check --
+   ---------------------
+
+   function RM_Column_Check return Boolean is
+   begin
+      return Style_Check and Style_Check_Layout;
+   end RM_Column_Check;
+
+end Styleg;