added awk12.cpp that shows how to redefine a console handler to use string buffers for console I/O
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@ -39,6 +39,9 @@
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/// @example awk08.cpp
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/// This program shows how to add intrinsic functions.
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///
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/// @example awk12.cpp
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/// This program shows how to override console methods to use a
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/// string buffers for console input and output.
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/////////////////////////////////
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QSE_BEGIN_NAMESPACE(QSE)
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@ -26,15 +26,17 @@ if ENABLE_CXX
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CXXLIB = -lqseawkxx -lqsecmnxx
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bin_PROGRAMS += awk05 awk06 awk07 awk08
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bin_PROGRAMS += awk05 awk06 awk07 awk08 awk12
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awk05_SOURCES = awk05.cpp
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awk06_SOURCES = awk06.cpp
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awk07_SOURCES = awk07.cpp
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awk08_SOURCES = awk08.cpp
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awk12_SOURCES = awk12.cpp
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awk05_LDADD = $(CXXLIB) $(LDADD)
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awk06_LDADD = $(CXXLIB) $(LDADD)
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awk07_LDADD = $(CXXLIB) $(LDADD)
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awk08_LDADD = $(CXXLIB) $(LDADD)
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awk12_LDADD = $(CXXLIB) $(LDADD)
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endif
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@ -38,7 +38,7 @@ bin_PROGRAMS = awk01$(EXEEXT) awk02$(EXEEXT) awk03$(EXEEXT) \
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awk04$(EXEEXT) awk09$(EXEEXT) awk10$(EXEEXT) awk11$(EXEEXT) \
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$(am__EXEEXT_1)
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@WIN32_TRUE@am__append_1 = $(UNICOWS_LIBS)
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@ENABLE_CXX_TRUE@am__append_2 = awk05 awk06 awk07 awk08
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@ENABLE_CXX_TRUE@am__append_2 = awk05 awk06 awk07 awk08 awk12
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subdir = samples/awk
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DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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@ -54,7 +54,7 @@ CONFIG_HEADER = $(top_builddir)/include/qse/config.h
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CONFIG_CLEAN_FILES =
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CONFIG_CLEAN_VPATH_FILES =
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@ENABLE_CXX_TRUE@am__EXEEXT_1 = awk05$(EXEEXT) awk06$(EXEEXT) \
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@ENABLE_CXX_TRUE@ awk07$(EXEEXT) awk08$(EXEEXT)
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@ENABLE_CXX_TRUE@ awk07$(EXEEXT) awk08$(EXEEXT) awk12$(EXEEXT)
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am__installdirs = "$(DESTDIR)$(bindir)"
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PROGRAMS = $(bin_PROGRAMS)
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am_awk01_OBJECTS = awk01.$(OBJEXT)
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@ -108,6 +108,11 @@ am_awk11_OBJECTS = awk11.$(OBJEXT)
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awk11_OBJECTS = $(am_awk11_OBJECTS)
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awk11_LDADD = $(LDADD)
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awk11_DEPENDENCIES = $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_2)
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am__awk12_SOURCES_DIST = awk12.cpp
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@ENABLE_CXX_TRUE@am_awk12_OBJECTS = awk12.$(OBJEXT)
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awk12_OBJECTS = $(am_awk12_OBJECTS)
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@ENABLE_CXX_TRUE@awk12_DEPENDENCIES = $(am__DEPENDENCIES_1) \
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@ENABLE_CXX_TRUE@ $(am__DEPENDENCIES_3)
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DEFAULT_INCLUDES =
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depcomp = $(SHELL) $(top_srcdir)/ac/depcomp
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am__depfiles_maybe = depfiles
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@ -133,12 +138,12 @@ CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
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SOURCES = $(awk01_SOURCES) $(awk02_SOURCES) $(awk03_SOURCES) \
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$(awk04_SOURCES) $(awk05_SOURCES) $(awk06_SOURCES) \
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$(awk07_SOURCES) $(awk08_SOURCES) $(awk09_SOURCES) \
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$(awk10_SOURCES) $(awk11_SOURCES)
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$(awk10_SOURCES) $(awk11_SOURCES) $(awk12_SOURCES)
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DIST_SOURCES = $(awk01_SOURCES) $(awk02_SOURCES) $(awk03_SOURCES) \
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$(awk04_SOURCES) $(am__awk05_SOURCES_DIST) \
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$(am__awk06_SOURCES_DIST) $(am__awk07_SOURCES_DIST) \
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$(am__awk08_SOURCES_DIST) $(awk09_SOURCES) $(awk10_SOURCES) \
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$(awk11_SOURCES)
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$(awk11_SOURCES) $(am__awk12_SOURCES_DIST)
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ETAGS = etags
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CTAGS = ctags
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DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
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@ -307,10 +312,12 @@ awk11_SOURCES = awk11.c
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@ENABLE_CXX_TRUE@awk06_SOURCES = awk06.cpp
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@ENABLE_CXX_TRUE@awk07_SOURCES = awk07.cpp
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@ENABLE_CXX_TRUE@awk08_SOURCES = awk08.cpp
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@ENABLE_CXX_TRUE@awk12_SOURCES = awk12.cpp
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@ENABLE_CXX_TRUE@awk05_LDADD = $(CXXLIB) $(LDADD)
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@ENABLE_CXX_TRUE@awk06_LDADD = $(CXXLIB) $(LDADD)
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@ENABLE_CXX_TRUE@awk07_LDADD = $(CXXLIB) $(LDADD)
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@ENABLE_CXX_TRUE@awk08_LDADD = $(CXXLIB) $(LDADD)
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@ENABLE_CXX_TRUE@awk12_LDADD = $(CXXLIB) $(LDADD)
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all: all-am
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.SUFFIXES:
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@ -421,6 +428,9 @@ awk10$(EXEEXT): $(awk10_OBJECTS) $(awk10_DEPENDENCIES)
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awk11$(EXEEXT): $(awk11_OBJECTS) $(awk11_DEPENDENCIES)
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@rm -f awk11$(EXEEXT)
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$(LINK) $(awk11_OBJECTS) $(awk11_LDADD) $(LIBS)
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awk12$(EXEEXT): $(awk12_OBJECTS) $(awk12_DEPENDENCIES)
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@rm -f awk12$(EXEEXT)
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$(CXXLINK) $(awk12_OBJECTS) $(awk12_LDADD) $(LIBS)
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mostlyclean-compile:
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-rm -f *.$(OBJEXT)
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@ -439,6 +449,7 @@ distclean-compile:
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/awk09.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/awk10.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/awk11.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/awk12.Po@am__quote@
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.c.o:
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@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
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@ -1,5 +1,5 @@
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/*
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* $Id: Awk.cpp 341 2008-08-20 10:58:19Z baconevi $
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* $Id$
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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216
qse/samples/awk/awk12.cpp
Normal file
216
qse/samples/awk/awk12.cpp
Normal file
@ -0,0 +1,216 @@
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/*
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* $Id$
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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QSE is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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QSE is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with QSE. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <qse/awk/StdAwk.hpp>
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#include <qse/cmn/stdio.h>
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#include <qse/cmn/main.h>
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#include <qse/cmn/mbwc.h>
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#include <qse/cmn/str.h>
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#include <locale.h>
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#if defined(_WIN32)
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# include <windows.h>
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#endif
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#include <string>
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#if defined(QSE_CHAR_IS_WCHAR)
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typedef std::wstring String;
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#else
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typedef std::string String;
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#endif
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typedef QSE::StdAwk StdAwk;
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typedef QSE::StdAwk::Run Run;
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typedef QSE::StdAwk::Value Value;
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class MyAwk: public StdAwk
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{
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public:
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//
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// this class overrides console methods to use
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// string buffers for console input and output.
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//
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MyAwk () { }
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~MyAwk () { close (); }
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void setInput (const char_t* instr)
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{
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this->input = instr;
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this->inptr = this->input.c_str();
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this->inend = inptr + this->input.length();
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}
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void clearOutput () { this->output.clear (); }
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const char_t* getOutput () { return this->output.c_str(); }
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protected:
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String input; // console input buffer
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const char_t* inptr;
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const char_t* inend;
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String output; // console output buffer
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int openConsole (Console& io)
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{
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return 1; // return open-success
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}
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int closeConsole (Console& io)
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{
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return 0; // return success
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}
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int flushConsole (Console& io)
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{
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// there is nothing to flush since a string buffer
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// is used for a console output. just return success.
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return 0;
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}
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int nextConsole (Console& io)
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{
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// this stripped-down awk doesn't honor the nextfile statement
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// or the nextofile statement. just return success.
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return 0;
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}
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ssize_t readConsole (Console& io, char_t* data, size_t size)
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{
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if (this->inptr >= this->inend) return 0; // EOF
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size_t x = qse_strxncpy (data, size, inptr, inend - inptr);
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this->inptr += x;
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return x;
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}
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ssize_t writeConsole (Console& io, const char_t* data, size_t size)
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{
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try { this->output.append (data, size); }
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catch (...)
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{
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((Run*)io)->setError (QSE_AWK_ENOMEM);
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return -1;
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}
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return size;
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}
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};
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static void print_error (
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const MyAwk::loc_t& loc, const MyAwk::char_t* msg)
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{
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if (loc.line > 0 || loc.colm > 0)
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qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s at LINE %lu COLUMN %lu\n"), msg, loc.line, loc.colm);
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else
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qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"), msg);
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}
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static int run_awk (MyAwk& awk)
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{
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// sample input string
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const qse_char_t* instr = QSE_T(
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"aardvark 555-5553 1200/300 B\n"
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"alpo-net 555-3412 2400/1200/300 A\n"
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"barfly 555-7685 1200/300 A\n"
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"bites 555-1675 2400/1200/300 A\n"
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"camelot 555-0542 300 C\n"
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"core 555-2912 1200/300 C\n"
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"fooey 555-1234 2400/1200/300 B\n"
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"foot 555-6699 1200/300 B\n"
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"macfoo 555-6480 1200/300 A\n"
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"sdace 555-3430 2400/1200/300 A\n"
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"sabafoo 555-2127 1200/300 C\n");
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// ARGV[0]
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if (awk.addArgument (QSE_T("awk12")) <= -1) return -1;
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// prepare a script to print the second and the first column
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MyAwk::SourceString in (QSE_T("{ print $2, $1; }"));
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// parse the script.
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if (awk.parse (in, MyAwk::Source::NONE) == QSE_NULL) return -1;
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MyAwk::Value r;
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awk.setInput (instr); // locate the input string
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awk.clearOutput (); // clear the output string
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int x = awk.loop (&r); // execute the BEGIN, pattern-action, END blocks.
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if (x >= 0)
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{
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qse_printf (QSE_T("%s"), awk.getOutput()); // print the console output
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qse_printf (QSE_T("-----------------------------\n"), awk.getOutput());
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// prepare a string to print lines with A in the fourth column
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MyAwk::SourceString in2 (QSE_T("$4 == \"A\" { print $1; }"));
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if (awk.parse (in2, MyAwk::Source::NONE) == QSE_NULL) return -1;
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awk.setInput (instr);
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awk.clearOutput ();
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int x = awk.loop (&r);
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if (x >= 0)
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{
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qse_printf (QSE_T("%s"), awk.getOutput());
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qse_printf (QSE_T("-----------------------------\n"), awk.getOutput());
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}
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}
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return x;
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}
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static int awk_main (int argc, qse_char_t* argv[])
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{
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MyAwk awk;
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int ret = awk.open ();
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if (ret >= 0) ret = run_awk (awk);
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if (ret <= -1)
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{
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MyAwk::loc_t loc = awk.getErrorLocation();
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print_error (loc, awk.getErrorMessage());
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}
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awk.close ();
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return ret;
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}
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int qse_main (int argc, qse_achar_t* argv[])
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{
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#if defined(_WIN32)
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char locale[100];
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UINT codepage = GetConsoleOutputCP();
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if (codepage == CP_UTF8)
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{
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/*SetConsoleOUtputCP (CP_UTF8);*/
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qse_setdflcmgr (qse_utf8cmgr);
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}
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else
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{
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sprintf (locale, ".%u", (unsigned int)codepage);
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setlocale (LC_ALL, locale);
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qse_setdflcmgr (qse_slmbcmgr);
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}
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#else
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setlocale (LC_ALL, "");
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qse_setdflcmgr (qse_slmbcmgr);
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#endif
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return qse_runmain (argc,argv,awk_main);
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}
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