Make-lang.in, [...]: Find runtime source in libgnat/

2017-09-08  Nicolas Roche  <roche@adacore.com>

	* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Find runtime
	source in libgnat/
	* a-lfztio.ads, g-timsta.ads, g-sercom-linux.adb, s-osprim-solaris.adb,
	a-inteio.ads, s-stchop-rtems.adb, s-casuti.adb, s-pack39.adb,
	i-vxwork-x86.ads, a-strbou.adb, a-stzmap.adb, s-assert.adb,
	a-sfecin.ads, a-cohama.adb, s-casuti.ads, a-suenco.adb, s-pack39.ads,
	a-stzmap.ads, a-strbou.ads, s-stalib.adb, s-trasym.adb, g-comver.adb,
	s-assert.ads, s-vector.ads, g-cgi.adb, a-cohama.ads, s-wchcnv.adb,
	a-titest.adb, s-pack48.adb, a-suenco.ads, a-strunb.adb, s-stalib.ads,
	s-trasym.ads, a-nudira.adb, g-comver.ads, a-nuflra.adb, g-cgi.ads,
	a-chacon.adb, s-wchcnv.ads, a-excach.adb, s-pack48.ads, a-titest.ads,
	a-strunb.ads, s-dwalin.adb, a-nudira.ads, a-chtgbo.adb, s-resfil.adb,
	a-scteio.ads, a-nuflra.ads, g-soliop-mingw.ads, s-pack57.adb,
	a-chacon.ads, s-bytswa.ads, s-pooloc.adb, g-os_lib.adb, s-dwalin.ads,
	a-szuzha.adb, s-resfil.ads, a-chtgbo.ads, s-spsufi.adb, s-pack57.ads,
	s-pooloc.ads, g-os_lib.ads, a-stfiha.ads, a-lcteio.ads, a-wtcoau.adb,
	a-szuzha.ads, s-mmosin-unix.adb, a-stmaco.ads, s-spsufi.ads,
	s-stchop-limit.ads, a-wtcoau.ads, a-exctra.adb, s-mmosin-unix.ads,
	s-sequio.adb, s-conca2.adb, g-table.adb, s-imglli.adb,
	a-numaux-x86.adb, a-strsea.adb, s-wchstw.adb, a-clrefi.adb,
	a-wwboio.adb, a-exctra.ads, s-sequio.ads, s-conca2.ads, a-wwunio.ads,
	system-linux-hppa.ads, g-table.ads, s-dimkio.ads, s-imglli.ads,
	a-cofove.adb, a-numaux-x86.ads, s-wchstw.ads, a-strsea.ads,
	a-clrefi.ads, a-wwboio.ads, s-stratt-xdr.adb, s-crc32.adb,
	s-excmac-arm.adb, g-busora.adb, a-cofove.ads, s-osprim-unix.adb,
	g-io.adb, s-pack49.adb, s-crc32.ads, s-excmac-arm.ads, a-fzteio.ads,
	g-busora.ads, s-stausa.adb, system-linux-mips.ads, sequenio.ads,
	g-exctra.adb, g-rewdat.adb, a-cgaaso.adb, g-io.ads, s-pack49.ads,
	a-wtflau.adb, a-undesu.adb, s-stausa.ads, a-ztenau.adb, g-enutst.ads,
	calendar.ads, s-pack58.adb, g-rewdat.ads, g-exctra.ads, s-ststop.adb,
	a-cgaaso.ads, a-strfix.adb, a-comlin.adb, a-strunb-shared.adb,
	a-wtflau.ads, a-undesu.ads, a-cbhase.adb, a-ztenau.ads, s-os_lib.adb,
	a-coorse.adb, a-chlat1.ads, s-pack58.ads, s-ststop.ads, a-strfix.ads,
	a-comlin.ads, a-strunb-shared.ads, a-nscefu.ads, s-valboo.adb,
	directio.ads, a-chtgke.adb, a-cbhase.ads, a-wtinau.adb,
	system-linux-alpha.ads, s-os_lib.ads, a-coorse.ads,
	system-linux-s390.ads, s-imgwiu.adb, a-chtgop.adb, s-valboo.ads,
	a-chtgke.ads, a-tienio.adb, s-conca3.adb, a-wtinau.ads,
	system-darwin-ppc.ads, i-c.adb, s-expllu.adb, g-expect.adb,
	g-sha256.ads, s-vallld.adb, s-imgwiu.ads, a-chtgop.ads, a-strmap.adb,
	a-tienio.ads, s-conca3.ads, s-imgint.adb, i-c.ads, s-expllu.ads,
	s-osprim-darwin.adb, a-cogeso.adb, g-expect.ads, a-iwteio.ads,
	s-vallld.ads, a-coinho-shared.adb, g-shsh64.adb, a-strmap.ads,
	g-comlin.adb, a-excpol.adb, s-imgint.ads, a-ztdeau.adb, a-cogeso.ads,
	a-coinho-shared.ads, g-shsh64.ads, g-comlin.ads, a-stzsup.adb,
	a-rbtgbk.adb, a-wtmoau.adb, a-ztdeau.ads, s-exnlli.adb, g-tty.adb,
	g-heasor.adb, g-socthi-dummy.adb, s-llflex.ads, a-zchara.ads,
	a-stzsup.ads, a-ztcstr.adb, a-rbtgbk.ads, a-sfwtio.ads, a-wtmoau.ads,
	a-sulcin.adb, s-exnlli.ads, system-freebsd.ads, a-stunha.adb,
	a-charac.ads, g-tty.ads, g-heasor.ads, s-exctra.adb,
	g-socthi-dummy.ads, a-coboho.adb, a-ztcstr.ads, a-tideio.adb,
	a-sulcin.ads, a-wrstfi.adb, g-alleve.adb, s-pack59.adb, a-ngrear.adb,
	a-stboha.adb, a-stunau-shared.adb, a-stunha.ads, a-lfwtio.ads,
	s-fileio.adb, s-exctra.ads, a-coboho.ads, a-ioexce.ads, a-tideio.ads,
	a-ngrear.ads, a-wrstfi.ads, s-pack59.ads, g-alleve.ads, a-stboha.ads,
	s-poosiz.adb, g-traceb.adb, g-rannum.adb, machcode.ads, s-purexc.ads,
	s-fileio.ads, a-cfinve.adb, a-crbtgk.adb, system-solaris-x86.ads,
	s-poosiz.ads, g-rannum.ads, g-traceb.ads, a-except.adb, s-conca4.adb,
	a-stream.adb, a-cfinve.ads, a-crbtgk.ads, s-wchwts.adb,
	system-mingw.ads, a-except.ads, s-conca4.ads, a-chzla9.ads,
	s-valenu.adb, s-soflin.adb, a-stream.ads, a-cgarso.adb, s-valllu.adb,
	g-crc32.adb, s-wchwts.ads, s-fatflt.ads, s-imguns.adb, s-strcom.adb,
	g-decstr.adb, s-valenu.ads, s-soflin.ads, a-cgarso.ads, a-cwila1.ads,
	s-valllu.ads, g-crc32.ads, s-imguns.ads, g-spipat.adb, s-valwch.adb,
	s-strcom.ads, g-decstr.ads, text_io.ads, g-debuti.adb, s-stchop.adb,
	g-spipat.ads, s-valwch.ads, a-string.ads, s-exnint.adb, g-awk.adb,
	g-tasloc.adb, s-wwdenu.adb, s-boustr.adb, a-zchuni.adb, s-stchop.ads,
	g-debuti.ads, s-stopoo.adb, system-dragonfly-x86_64.ads,
	system-linux-x86.ads, s-exnint.ads, g-awk.ads, a-stzhas.adb,
	g-tasloc.ads, s-wwdenu.ads, g-debpoo.adb, g-except.ads,
	g-sse.ads, s-boustr.ads, a-zchuni.ads, s-bitops.adb, s-wwdwch.adb,
	s-stopoo.ads, a-catizo.adb, a-stzhas.ads, a-nlcefu.ads, g-debpoo.ads,
	i-vxwoio.adb, s-bitops.ads, g-io-put-vxworks.adb, s-wwdwch.ads,
	g-sehamd.adb, a-ssicst.adb, a-catizo.ads, s-mmap.adb, g-string.adb,
	s-traceb.adb, a-swunau.adb, s-rannum.adb, a-ticoau.adb, i-vxwoio.ads,
	g-sehamd.ads, a-stwiun.adb, a-ssicst.ads, s-conca5.adb, a-ssitio.ads,
	s-mmap.ads, a-zttest.adb, g-string.ads, g-sercom.adb, a-cdlili.adb,
	a-swunau.ads, s-traceb.ads, s-rannum.ads, a-ticoau.ads, system-aix.ads,
	a-cforma.adb, a-stwiun.ads, s-conca5.ads, s-carsi8.adb, a-zttest.ads,
	g-sercom.ads, a-cdlili.ads, a-cihama.adb, g-sptain.ads, a-cforma.ads,
	s-maccod.ads, s-carsi8.ads, a-strsup.adb, g-sha1.adb, a-cihama.ads,
	g-stseme.adb, s-traent.adb, s-valcha.adb, g-curexc.ads, a-strsup.ads,
	g-sha1.ads, a-sflcin.ads, s-traent.ads, s-pack10.adb, s-valcha.ads,
	a-coteio.ads, s-tasloc.adb, g-utf_32.adb, a-suteio.adb, s-except.adb,
	a-direct.adb, g-stsifd-sockets.adb, a-numaux-vxworks.ads, s-winext.ads,
	s-pack10.ads, a-ztexio.adb, a-tiflau.adb, system-vxworks-arm.ads,
	s-tasloc.ads, a-suteio.ads, g-utf_32.ads, s-except.ads,
	a-direct.ads, a-swbwha.adb, g-hesorg.adb, s-wwdcha.adb, a-wtedit.adb,
	a-ztexio.ads, a-wtcoio.adb, a-tiflau.ads, a-ssizti.ads, s-casi32.adb,
	a-swbwha.ads, s-veboop.adb, g-hesorg.ads, s-parame-rtems.adb,
	s-wwdcha.ads, a-wtedit.ads, a-stuten.adb, a-coinve.adb, a-wtcoio.ads,
	s-casi32.ads, s-string.adb, a-tiinau.adb, a-cusyqu.adb, s-conca6.adb,
	s-veboop.ads, a-cgcaso.adb, a-numaux-darwin.adb, a-envvar.adb,
	a-stuten.ads, s-secsta.adb, a-coinve.ads, s-string.ads, a-cusyqu.ads,
	a-tiinau.ads, s-osprim-vxworks.adb, s-conca6.ads, g-spchge.adb,
	s-parint.adb, a-cuprqu.adb, a-cgcaso.ads, a-numaux-darwin.ads,
	a-envvar.ads, s-secsta.ads, g-spchge.ads, s-parint.ads, a-cuprqu.ads,
	a-swuwti.adb, a-flteio.ads, a-sbhcin.adb, a-coprnu.adb, g-u3spch.adb,
	s-atocou.adb, g-ctrl_c.adb, a-swuwti.ads, a-calend.adb, a-sbhcin.ads,
	a-coprnu.ads, g-dirope.adb, g-sha512.ads, g-u3spch.ads, s-atocou.ads,
	g-ctrl_c.ads, a-timoau.adb, a-witeio.adb, s-pack11.adb, a-strhas.adb,
	a-wtflio.adb, g-spitbo.adb, a-calend.ads, a-ztenio.adb, g-dirope.ads,
	a-slcain.adb, g-sechas.adb, a-timoau.ads, a-witeio.ads, s-pack11.ads,
	s-shasto.adb, s-traceb-mastop.adb, a-ciorse.adb, s-utf_32.adb,
	a-strhas.ads, a-wtflio.ads, g-spitbo.ads, a-ztenio.ads, a-slcain.ads,
	g-sechas.ads, s-gearop.adb, a-siztio.ads, s-pack20.adb, s-shasto.ads,
	a-ciorse.ads, s-utf_32.ads, s-crtl.ads, a-wtinio.adb, s-elaall.adb,
	s-explli.adb, s-chepoo.ads, s-gearop.ads, a-einuoc.adb, s-pack20.ads,
	system-linux-ia64.ads, a-swunau-shared.adb, a-wtinio.ads, g-alvety.ads,
	a-liztio.ads, g-calend.adb, s-conca7.adb, s-elaall.ads, s-explli.ads,
	a-einuoc.ads, s-widboo.adb, s-imgdec.adb, a-cbhama.adb, g-calend.ads,
	s-conca7.ads, a-llitio.ads, i-cexten.ads, a-coorma.adb, s-widboo.ads,
	s-diflio.adb, g-souinf.ads, s-imgdec.ads, g-strhas.ads, a-cbhama.ads,
	g-shshco.adb, a-ztdeio.adb, s-gloloc.adb, a-coorma.ads, g-wispch.adb,
	s-pack03.adb, g-eacodu.adb, s-casi16.adb, s-diflio.ads, a-colien.adb,
	g-shshco.ads, a-wtmoio.adb, a-rbtgbo.adb, a-ztdeio.ads,
	system-rtems.ads, s-gloloc.ads, a-csquin.ads, a-cofuse.adb,
	g-wispch.ads, s-pack03.ads, s-casi16.ads, s-io.adb, a-colien.ads,
	g-alveop.adb, gnat.ads, s-diinio.adb, a-cfdlli.adb, g-pehage.adb,
	a-wtmoio.ads, a-stwiha.adb, a-locale.adb, a-tirsfi.adb, a-nscoty.ads,
	a-rbtgbo.ads, s-pack12.adb, a-cofuse.ads, a-sfteio.ads, s-io.ads,
	g-alveop.ads, a-cfdlli.ads, s-diinio.ads, a-stwiha.ads, g-pehage.ads,
	a-locale.ads, a-tirsfi.ads, s-pack12.ads, s-valuti.adb, g-cppexc.adb,
	system-vxworks-ppc.ads, g-memdum.adb, a-lfteio.ads, s-pack21.adb,
	s-unstyp.ads, s-valuti.ads, g-cppexc.ads, system-hpux-ia64.ads,
	g-memdum.ads, g-soccon.ads, g-altive.ads, a-crbtgo.adb, s-pack21.ads,
	a-llizti.ads, a-numaux-libc-x86.ads, s-expint.adb, s-conca8.adb,
	a-crbtgo.ads, s-pack30.adb, s-vallli.adb, s-geveop.adb, s-expint.ads,
	a-direio.adb, s-conca8.ads, a-widcha.ads, s-pack30.ads, s-vallli.ads,
	s-strhas.adb, s-geveop.ads, g-md5.adb, a-direio.ads, a-numaux.ads,
	s-ransee.adb, a-szbzha.adb, i-cobol.adb, g-busorg.adb, s-strhas.ads,
	g-md5.ads, s-widenu.adb, s-ransee.ads, s-widllu.adb, a-szbzha.ads,
	a-ststio.adb, i-cobol.ads, g-busorg.ads, g-regpat.adb, s-widenu.ads,
	a-secain.adb, s-widllu.ads, s-pack13.adb, g-encstr.adb, a-ztcoau.adb,
	a-ststio.ads, s-widwch.adb, g-regpat.ads, s-atacco.adb, a-cborse.adb,
	a-secain.ads, s-pack13.ads, g-encstr.ads, a-ztcoau.ads, s-widwch.ads,
	g-io_aux.adb, s-atacco.ads, a-ncelfu.ads, interfac.ads, a-cborse.ads,
	g-regexp.adb, s-pack22.adb, a-szuzti.adb, g-io_aux.ads, s-caun32.adb,
	a-nselfu.ads, g-regexp.ads, s-pack22.ads, a-ticoio.adb, a-szuzti.ads,
	g-diopit.adb, s-caun32.ads, s-conca9.adb, a-tags.adb, a-swmwco.ads,
	a-sbecin.adb, s-pack31.adb, s-expuns.adb, a-ticoio.ads, s-valint.adb,
	s-conca9.ads, g-diopit.ads, a-tags.ads, a-nllcef.ads, a-izteio.ads,
	a-sbecin.ads, s-expuns.ads, s-pack31.ads, g-dyntab.adb, s-powtab.ads,
	s-flocon-none.adb, s-valint.ads, a-ssiwti.ads, s-mmosin-mingw.adb,
	s-pack40.adb, s-pack05.adb, a-ztflau.adb, g-dyntab.ads,
	a-szuzti-shared.adb, g-alvevi.ads, a-stwise.adb, s-mmosin-mingw.ads,
	s-pack40.ads, a-diocst.adb, a-ztflau.ads, s-pack05.ads, a-nlcoty.ads,
	a-contai.ads, a-stwisu.adb, g-byorma.adb, a-siwtio.ads, a-stwise.ads,
	s-regpat.adb, g-mbdira.adb, s-pack14.adb, a-diocst.ads, g-flocon.ads,
	g-mbflra.adb, a-ztinau.adb, s-dim.ads, s-mantis.adb, a-stwisu.ads,
	g-byorma.ads, s-atopri.adb, g-wistsp.ads, a-uncdea.ads, s-widcha.adb,
	a-caldel.adb, s-regpat.ads, g-mbdira.ads, a-tiflio.adb, s-pack14.ads,
	s-parame.adb, a-liwtio.ads, s-memory.adb, g-mbflra.ads, a-ztinau.ads,
	a-wtgeau.adb, s-direio.adb, s-mantis.ads, s-atopri.ads, s-widcha.ads,
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	a-llftio.ads, s-memory.ads, s-regexp.adb, a-wtgeau.ads, a-exexda.adb,
	s-direio.ads, s-pack23.ads, g-stheme.adb, a-tiinio.adb, g-sestin.ads,
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	a-ztmoau.adb, a-cohata.ads, a-wtfiio.ads, s-imgrea.adb, ada.ads,
	a-szunau-shared.adb, a-comutr.ads, s-valuns.adb, a-ztmoau.ads,
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	a-elchha.adb, s-pack33.ads, a-cofuve.adb, s-parame-vxworks.ads,
	a-ciorma.ads, system-darwin-x86.ads, s-multip.adb, a-stwiun-shared.adb,
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	a-coormu.adb, a-siocst.adb, s-win32.ads, a-elchha.ads, s-pack42.adb,
	s-pack07.adb, a-cofuve.ads, system-hpux.ads, a-teioed.adb,
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	s-osprim-mingw.adb, s-casi64.adb, g-strspl.ads, g-socthi.ads,
	g-socket-dummy.adb, s-pack51.ads, s-dimmks.ads, s-casi64.ads,
	a-wtenau.adb, s-stchop-vxworks.adb, s-pack60.adb,
	system-solaris-sparc.ads, s-pack25.adb, g-socket-dummy.ads,
	a-exstat.adb, a-cofuma.adb, s-tsmona-linux.adb, a-wtenau.ads,
	s-pack60.ads, s-pack25.ads, i-cstrea.adb, a-cofuma.ads, g-exptty.adb,
	a-chzla1.ads, s-pack34.adb, i-cstrea.ads, s-excdeb.adb, a-iteint.ads,
	g-exptty.ads, i-pacdec.adb, s-pack34.ads, s-rident.ads, s-sopco3.adb,
	i-vxwork.ads, s-excdeb.ads, system-linux-ppc.ads, a-swuwti-shared.adb,
	s-widlli.adb, s-pack43.adb, i-pacdec.ads, a-cwila9.ads, s-sopco3.ads,
	a-fwteio.ads, s-widlli.ads, s-pack43.ads, a-suhcin.adb, a-wtdeau.adb,
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	s-pack52.adb, a-llctio.ads, a-nucoar.ads, s-pack17.adb, a-suhcin.ads,
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	a-ztfiio.ads, system-darwin-arm.ads: Move non-tasking runtime sources
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From-SVN: r251902

1 files changed, 642 insertions, 0 deletions

diff --git a/gcc/ada/libgnat/g-awk.ads b/gcc/ada/libgnat/g-awk.ads
new file mode 100644
index 0000000..11330b6
--- /dev/null
+++ b/gcc/ada/libgnat/g-awk.ads
@@ -0,0 +1,642 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              G N A T . A W K                             --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--                     Copyright (C) 2000-2017, AdaCore                     --
+--                                                                          --
+-- 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 3,  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.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is an AWK-like unit. It provides an easy interface for parsing one
+--  or more files containing formatted data. The file can be viewed seen as
+--  a database where each record is a line and a field is a data element in
+--  this line. In this implementation an AWK record is a line. This means
+--  that a record cannot span multiple lines. The operating procedure is to
+--  read files line by line, with each line being presented to the user of
+--  the package. The interface provides services to access specific fields
+--  in the line. Thus it is possible to control actions taken on a line based
+--  on values of some fields. This can be achieved directly or by registering
+--  callbacks triggered on programmed conditions.
+--
+--  The state of an AWK run is recorded in an object of type session.
+--  The following is the procedure for using a session to control an
+--  AWK run:
+--
+--     1) Specify which session is to be used. It is possible to use the
+--        default session or to create a new one by declaring an object of
+--        type Session_Type. For example:
+--
+--           Computers : Session_Type;
+--
+--     2) Specify how to cut a line into fields. There are two modes: using
+--        character fields separators or column width. This is done by using
+--        Set_Fields_Separators or Set_Fields_Width. For example by:
+--
+--           AWK.Set_Field_Separators (";,", Computers);
+--
+--        or by using iterators' Separators parameter.
+--
+--     3) Specify which files to parse. This is done with Add_File/Add_Files
+--        services, or by using the iterators' Filename parameter. For
+--        example:
+--
+--           AWK.Add_File ("myfile.db", Computers);
+--
+--     4) Run the AWK session using one of the provided iterators.
+--
+--           Parse
+--              This is the most automated iterator. You can gain control on
+--              the session only by registering one or more callbacks (see
+--              Register).
+--
+--           Get_Line/End_Of_Data
+--              This is a manual iterator to be used with a loop. You have
+--              complete control on the session. You can use callbacks but
+--              this is not required.
+--
+--           For_Every_Line
+--              This provides a mixture of manual/automated iterator action.
+--
+--        Examples of these three approaches appear below
+--
+--  There are many ways to use this package. The following discussion shows
+--  three approaches to using this package, using the three iterator forms.
+--  All examples will use the following file (computer.db):
+--
+--     Pluton;Windows-NT;Pentium III
+--     Mars;Linux;Pentium Pro
+--     Venus;Solaris;Sparc
+--     Saturn;OS/2;i486
+--     Jupiter;MacOS;PPC
+--
+--  1) Using Parse iterator
+--
+--     Here the first step is to register some action associated to a pattern
+--     and then to call the Parse iterator (this is the simplest way to use
+--     this unit). The default session is used here. For example to output the
+--     second field (the OS) of computer "Saturn".
+--
+--           procedure Action is
+--           begin
+--              Put_Line (AWK.Field (2));
+--           end Action;
+--
+--        begin
+--           AWK.Register (1, "Saturn", Action'Access);
+--           AWK.Parse (";", "computer.db");
+--
+--
+--  2) Using the Get_Line/End_Of_Data iterator
+--
+--     Here you have full control. For example to do the same as
+--     above but using a specific session, you could write:
+--
+--           Computer_File : Session_Type;
+--
+--        begin
+--           AWK.Set_Current (Computer_File);
+--           AWK.Open (Separators => ";",
+--                     Filename   => "computer.db");
+--
+--           --  Display Saturn OS
+--
+--           while not AWK.End_Of_File loop
+--              AWK.Get_Line;
+--
+--              if AWK.Field (1) = "Saturn" then
+--                 Put_Line (AWK.Field (2));
+--              end if;
+--           end loop;
+--
+--           AWK.Close (Computer_File);
+--
+--
+--  3) Using For_Every_Line iterator
+--
+--     In this case you use a provided iterator and you pass the procedure
+--     that must be called for each record. You could code the previous
+--     example could be coded as follows (using the iterator quick interface
+--     but without using the current session):
+--
+--           Computer_File : Session_Type;
+--
+--           procedure Action (Quit : in out Boolean) is
+--           begin
+--              if AWK.Field (1, Computer_File) = "Saturn" then
+--                 Put_Line (AWK.Field (2, Computer_File));
+--              end if;
+--           end Action;
+--
+--           procedure Look_For_Saturn is
+--              new AWK.For_Every_Line (Action);
+--
+--        begin
+--           Look_For_Saturn (Separators => ";",
+--                            Filename   => "computer.db",
+--                            Session    => Computer_File);
+--
+--           Integer_Text_IO.Put
+--             (Integer (AWK.NR (Session => Computer_File)));
+--           Put_Line (" line(s) have been processed.");
+--
+--  You can also use a regular expression for the pattern. Let us output
+--  the computer name for all computer for which the OS has a character
+--  O in its name.
+--
+--           Regexp   : String := ".*O.*";
+--
+--           Matcher  : Regpat.Pattern_Matcher := Regpat.Compile (Regexp);
+--
+--           procedure Action is
+--           begin
+--              Text_IO.Put_Line (AWK.Field (2));
+--           end Action;
+--
+--        begin
+--           AWK.Register (2, Matcher, Action'Unrestricted_Access);
+--           AWK.Parse (";", "computer.db");
+--
+
+with Ada.Finalization;
+with GNAT.Regpat;
+
+package GNAT.AWK is
+
+   Session_Error : exception;
+   --  Raised when a Session is reused but is not closed
+
+   File_Error : exception;
+   --  Raised when there is a file problem (see below)
+
+   End_Error : exception;
+   --  Raised when an attempt is made to read beyond the end of the last
+   --  file of a session.
+
+   Field_Error : exception;
+   --  Raised when accessing a field value which does not exist
+
+   Data_Error : exception;
+   --  Raised when it is impossible to convert a field value to a specific type
+
+   type Count is new Natural;
+
+   type Widths_Set is array (Positive range <>) of Positive;
+   --  Used to store a set of columns widths
+
+   Default_Separators : constant String := " " & ASCII.HT;
+
+   Use_Current : constant String := "";
+   --  Value used when no separator or filename is specified in iterators
+
+   type Session_Type is limited private;
+   --  This is the main exported type. A session is used to keep the state of
+   --  a full AWK run. The state comprises a list of files, the current file,
+   --  the number of line processed, the current line, the number of fields in
+   --  the current line... A default session is provided (see Set_Current,
+   --  Current_Session and Default_Session below).
+
+   ----------------------------
+   -- Package initialization --
+   ----------------------------
+
+   --  To be thread safe it is not possible to use the default provided
+   --  session. Each task must used a specific session and specify it
+   --  explicitly for every services.
+
+   procedure Set_Current (Session : Session_Type);
+   --  Set the session to be used by default. This file will be used when the
+   --  Session parameter in following services is not specified.
+
+   function Current_Session return not null access Session_Type;
+   --  Returns the session used by default by all services. This is the
+   --  latest session specified by Set_Current service or the session
+   --  provided by default with this implementation.
+
+   function Default_Session return not null access Session_Type;
+   --  Returns the default session provided by this package. Note that this is
+   --  the session return by Current_Session if Set_Current has not been used.
+
+   procedure Set_Field_Separators
+     (Separators : String       := Default_Separators;
+      Session    : Session_Type);
+   procedure Set_Field_Separators
+     (Separators : String       := Default_Separators);
+   --  Set the field separators. Each character in the string is a field
+   --  separator. When a line is read it will be split by field using the
+   --  separators set here. Separators can be changed at any point and in this
+   --  case the current line is split according to the new separators. In the
+   --  special case that Separators is a space and a tabulation
+   --  (Default_Separators), fields are separated by runs of spaces and/or
+   --  tabs.
+
+   procedure Set_FS
+     (Separators : String       := Default_Separators;
+      Session    : Session_Type)
+     renames Set_Field_Separators;
+   procedure Set_FS
+     (Separators : String       := Default_Separators)
+     renames Set_Field_Separators;
+   --  FS is the AWK abbreviation for above service
+
+   procedure Set_Field_Widths
+     (Field_Widths : Widths_Set;
+      Session      : Session_Type);
+   procedure Set_Field_Widths
+     (Field_Widths : Widths_Set);
+   --  This is another way to split a line by giving the length (in number of
+   --  characters) of each field in a line. Field widths can be changed at any
+   --  point and in this case the current line is split according to the new
+   --  field lengths. A line split with this method must have a length equal or
+   --  greater to the total of the field widths. All characters remaining on
+   --  the line after the latest field are added to a new automatically
+   --  created field.
+
+   procedure Add_File
+     (Filename : String;
+      Session  : Session_Type);
+   procedure Add_File
+     (Filename : String);
+   --  Add Filename to the list of file to be processed. There is no limit on
+   --  the number of files that can be added. Files are processed in the order
+   --  they have been added (i.e. the filename list is FIFO). If Filename does
+   --  not exist or if it is not readable, File_Error is raised.
+
+   procedure Add_Files
+     (Directory             : String;
+      Filenames             : String;
+      Number_Of_Files_Added : out Natural;
+      Session               : Session_Type);
+   procedure Add_Files
+     (Directory             : String;
+      Filenames             : String;
+      Number_Of_Files_Added : out Natural);
+   --  Add all files matching the regular expression Filenames in the specified
+   --  directory to the list of file to be processed. There is no limit on
+   --  the number of files that can be added. Each file is processed in
+   --  the same order they have been added (i.e. the filename list is FIFO).
+   --  The number of files (possibly 0) added is returned in
+   --  Number_Of_Files_Added.
+
+   -------------------------------------
+   -- Information about current state --
+   -------------------------------------
+
+   function Number_Of_Fields
+     (Session : Session_Type) return Count;
+   function Number_Of_Fields
+     return Count;
+   pragma Inline (Number_Of_Fields);
+   --  Returns the number of fields in the current record. It returns 0 when
+   --  no file is being processed.
+
+   function NF
+     (Session : Session_Type) return Count
+     renames Number_Of_Fields;
+   function NF
+     return Count
+     renames Number_Of_Fields;
+   --  AWK abbreviation for above service
+
+   function Number_Of_File_Lines
+     (Session : Session_Type) return Count;
+   function Number_Of_File_Lines
+     return Count;
+   pragma Inline (Number_Of_File_Lines);
+   --  Returns the current line number in the processed file. It returns 0 when
+   --  no file is being processed.
+
+   function FNR (Session : Session_Type) return Count
+     renames Number_Of_File_Lines;
+   function FNR return Count
+     renames Number_Of_File_Lines;
+   --  AWK abbreviation for above service
+
+   function Number_Of_Lines
+     (Session : Session_Type) return Count;
+   function Number_Of_Lines
+     return Count;
+   pragma Inline (Number_Of_Lines);
+   --  Returns the number of line processed until now. This is equal to number
+   --  of line in each already processed file plus FNR. It returns 0 when
+   --  no file is being processed.
+
+   function NR (Session : Session_Type) return Count
+     renames Number_Of_Lines;
+   function NR return Count
+     renames Number_Of_Lines;
+   --  AWK abbreviation for above service
+
+   function Number_Of_Files
+     (Session : Session_Type) return Natural;
+   function Number_Of_Files
+     return Natural;
+   pragma Inline (Number_Of_Files);
+   --  Returns the number of files associated with Session. This is the total
+   --  number of files added with Add_File and Add_Files services.
+
+   function File (Session : Session_Type) return String;
+   function File return String;
+   --  Returns the name of the file being processed. It returns the empty
+   --  string when no file is being processed.
+
+   ---------------------
+   -- Field accessors --
+   ---------------------
+
+   function Field
+     (Rank    : Count;
+      Session : Session_Type) return String;
+   function Field
+     (Rank    : Count) return String;
+   --  Returns field number Rank value of the current record. If Rank = 0 it
+   --  returns the current record (i.e. the line as read in the file). It
+   --  raises Field_Error if Rank > NF or if Session is not open.
+
+   function Field
+     (Rank    : Count;
+      Session : Session_Type) return Integer;
+   function Field
+     (Rank    : Count) return Integer;
+   --  Returns field number Rank value of the current record as an integer. It
+   --  raises Field_Error if Rank > NF or if Session is not open. It
+   --  raises Data_Error if the field value cannot be converted to an integer.
+
+   function Field
+     (Rank    : Count;
+      Session : Session_Type) return Float;
+   function Field
+     (Rank    : Count) return Float;
+   --  Returns field number Rank value of the current record as a float. It
+   --  raises Field_Error if Rank > NF or if Session is not open. It
+   --  raises Data_Error if the field value cannot be converted to a float.
+
+   generic
+      type Discrete is (<>);
+   function Discrete_Field
+     (Rank    : Count;
+      Session : Session_Type) return Discrete;
+   generic
+      type Discrete is (<>);
+   function Discrete_Field_Current_Session
+     (Rank    : Count) return Discrete;
+   --  Returns field number Rank value of the current record as a type
+   --  Discrete. It raises Field_Error if Rank > NF. It raises Data_Error if
+   --  the field value cannot be converted to type Discrete.
+
+   --------------------
+   -- Pattern/Action --
+   --------------------
+
+   --  AWK defines rules like "PATTERN { ACTION }". Which means that ACTION
+   --  will be executed if PATTERN match. A pattern in this implementation can
+   --  be a simple string (match function is equality), a regular expression,
+   --  a function returning a boolean. An action is associated to a pattern
+   --  using the Register services.
+   --
+   --  Each procedure Register will add a rule to the set of rules for the
+   --  session. Rules are examined in the order they have been added.
+
+   type Pattern_Callback is access function return Boolean;
+   --  This is a pattern function pointer. When it returns True the associated
+   --  action will be called.
+
+   type Action_Callback is access procedure;
+   --  A simple action pointer
+
+   type Match_Action_Callback is
+     access procedure (Matches : GNAT.Regpat.Match_Array);
+   --  An advanced action pointer used with a regular expression pattern. It
+   --  returns an array of all the matches. See GNAT.Regpat for further
+   --  information.
+
+   procedure Register
+     (Field   : Count;
+      Pattern : String;
+      Action  : Action_Callback;
+      Session : Session_Type);
+   procedure Register
+     (Field   : Count;
+      Pattern : String;
+      Action  : Action_Callback);
+   --  Register an Action associated with a Pattern. The pattern here is a
+   --  simple string that must match exactly the field number specified.
+
+   procedure Register
+     (Field   : Count;
+      Pattern : GNAT.Regpat.Pattern_Matcher;
+      Action  : Action_Callback;
+      Session : Session_Type);
+   procedure Register
+     (Field   : Count;
+      Pattern : GNAT.Regpat.Pattern_Matcher;
+      Action  : Action_Callback);
+   --  Register an Action associated with a Pattern. The pattern here is a
+   --  simple regular expression which must match the field number specified.
+
+   procedure Register
+     (Field   : Count;
+      Pattern : GNAT.Regpat.Pattern_Matcher;
+      Action  : Match_Action_Callback;
+      Session : Session_Type);
+   procedure Register
+     (Field   : Count;
+      Pattern : GNAT.Regpat.Pattern_Matcher;
+      Action  : Match_Action_Callback);
+   --  Same as above but it pass the set of matches to the action
+   --  procedure. This is useful to analyze further why and where a regular
+   --  expression did match.
+
+   procedure Register
+     (Pattern : Pattern_Callback;
+      Action  : Action_Callback;
+      Session : Session_Type);
+   procedure Register
+     (Pattern : Pattern_Callback;
+      Action  : Action_Callback);
+   --  Register an Action associated with a Pattern. The pattern here is a
+   --  function that must return a boolean. Action callback will be called if
+   --  the pattern callback returns True and nothing will happen if it is
+   --  False. This version is more general, the two other register services
+   --  trigger an action based on the value of a single field only.
+
+   procedure Register
+     (Action  : Action_Callback;
+      Session : Session_Type);
+   procedure Register
+     (Action  : Action_Callback);
+   --  Register an Action that will be called for every line. This is
+   --  equivalent to a Pattern_Callback function always returning True.
+
+   --------------------
+   -- Parse iterator --
+   --------------------
+
+   procedure Parse
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current;
+      Session    : Session_Type);
+   procedure Parse
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current);
+   --  Launch the iterator, it will read every line in all specified
+   --  session's files. Registered callbacks are then called if the associated
+   --  pattern match. It is possible to specify a filename and a set of
+   --  separators directly. This offer a quick way to parse a single
+   --  file. These parameters will override those specified by Set_FS and
+   --  Add_File. The Session will be opened and closed automatically.
+   --  File_Error is raised if there is no file associated with Session, or if
+   --  a file associated with Session is not longer readable. It raises
+   --  Session_Error is Session is already open.
+
+   -----------------------------------
+   -- Get_Line/End_Of_Data Iterator --
+   -----------------------------------
+
+   type Callback_Mode is (None, Only, Pass_Through);
+   --  These mode are used for Get_Line/End_Of_Data and For_Every_Line
+   --  iterators. The associated semantic is:
+   --
+   --    None
+   --       callbacks are not active. This is the default mode for
+   --       Get_Line/End_Of_Data and For_Every_Line iterators.
+   --
+   --    Only
+   --       callbacks are active, if at least one pattern match, the associated
+   --       action is called and this line will not be passed to the user. In
+   --       the Get_Line case the next line will be read (if there is some
+   --       line remaining), in the For_Every_Line case Action will
+   --       not be called for this line.
+   --
+   --    Pass_Through
+   --       callbacks are active, for patterns which match the associated
+   --       action is called. Then the line is passed to the user. It means
+   --       that Action procedure is called in the For_Every_Line case and
+   --       that Get_Line returns with the current line active.
+   --
+
+   procedure Open
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current;
+      Session    : Session_Type);
+   procedure Open
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current);
+   --  Open the first file and initialize the unit. This must be called once
+   --  before using Get_Line. It is possible to specify a filename and a set of
+   --  separators directly. This offer a quick way to parse a single file.
+   --  These parameters will override those specified by Set_FS and Add_File.
+   --  File_Error is raised if there is no file associated with Session, or if
+   --  the first file associated with Session is no longer readable. It raises
+   --  Session_Error is Session is already open.
+
+   procedure Get_Line
+     (Callbacks : Callback_Mode := None;
+      Session   : Session_Type);
+   procedure Get_Line
+     (Callbacks : Callback_Mode := None);
+   --  Read a line from the current input file. If the file index is at the
+   --  end of the current input file (i.e. End_Of_File is True) then the
+   --  following file is opened. If there is no more file to be processed,
+   --  exception End_Error will be raised. File_Error will be raised if Open
+   --  has not been called. Next call to Get_Line will return the following
+   --  line in the file. By default the registered callbacks are not called by
+   --  Get_Line, this can activated by setting Callbacks (see Callback_Mode
+   --  description above). File_Error may be raised if a file associated with
+   --  Session is not readable.
+   --
+   --  When Callbacks is not None, it is possible to exhaust all the lines
+   --  of all the files associated with Session. In this case, File_Error
+   --  is not raised.
+   --
+   --  This procedure can be used from a subprogram called by procedure Parse
+   --  or by an instantiation of For_Every_Line (see below).
+
+   function End_Of_Data
+     (Session : Session_Type) return Boolean;
+   function End_Of_Data
+     return Boolean;
+   pragma Inline (End_Of_Data);
+   --  Returns True if there is no more data to be processed in Session. It
+   --  means that the latest session's file is being processed and that
+   --  there is no more data to be read in this file (End_Of_File is True).
+
+   function End_Of_File
+     (Session : Session_Type) return Boolean;
+   function End_Of_File
+     return Boolean;
+   pragma Inline (End_Of_File);
+   --  Returns True when there is no more data to be processed on the current
+   --  session's file.
+
+   procedure Close (Session : Session_Type);
+   --  Release all associated data with Session. All memory allocated will
+   --  be freed, the current file will be closed if needed, the callbacks
+   --  will be unregistered. Close is convenient in reestablishing a session
+   --  for new use. Get_Line is no longer usable (will raise File_Error)
+   --  except after a successful call to Open, Parse or an instantiation
+   --  of For_Every_Line.
+
+   -----------------------------
+   -- For_Every_Line iterator --
+   -----------------------------
+
+   generic
+      with procedure Action (Quit : in out Boolean);
+   procedure For_Every_Line
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current;
+      Callbacks  : Callback_Mode := None;
+      Session    : Session_Type);
+   generic
+      with procedure Action (Quit : in out Boolean);
+   procedure For_Every_Line_Current_Session
+     (Separators : String := Use_Current;
+      Filename   : String := Use_Current;
+      Callbacks  : Callback_Mode := None);
+   --  This is another iterator. Action will be called for each new
+   --  record. The iterator's termination can be controlled by setting Quit
+   --  to True. It is by default set to False. It is possible to specify a
+   --  filename and a set of separators directly. This offer a quick way to
+   --  parse a single file. These parameters will override those specified by
+   --  Set_FS and Add_File. By default the registered callbacks are not called
+   --  by For_Every_Line, this can activated by setting Callbacks (see
+   --  Callback_Mode description above). The Session will be opened and
+   --  closed automatically. File_Error is raised if there is no file
+   --  associated with Session. It raises Session_Error is Session is already
+   --  open.
+
+private
+   type Session_Data;
+   type Session_Data_Access is access Session_Data;
+
+   type Session_Type is new Ada.Finalization.Limited_Controlled with record
+      Data : Session_Data_Access;
+      Self : not null access Session_Type := Session_Type'Unchecked_Access;
+   end record;
+
+   procedure Initialize (Session : in out Session_Type);
+   procedure Finalize   (Session : in out Session_Type);
+
+end GNAT.AWK;