added some more docs
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@ -1549,6 +1549,7 @@ PREDEFINED = "QSE_BEGIN_NAMESPACE(x)=namespace x {" \
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"QSE_SIZEOF_FLOAT=@QSE_SIZEOF_FLOAT@" \
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"QSE_SIZEOF_DOUBLE=@QSE_SIZEOF_DOUBLE@" \
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"QSE_SIZEOF_LONG_DOUBLE=@QSE_SIZEOF_LONG_DOUBLE@" \
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"QSE_EXPORT=" \
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"@CHAR_MODE@"
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# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
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@ -6,11 +6,12 @@ EXTRA_DIST = \
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gendoc.sh \
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page/mainpage.md \
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page/installation.md \
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page/mem.doc \
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page/cenc.doc \
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page/io.doc \
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page/awk.doc \
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page/awk-lang.md \
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page/sed.doc \
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page/mem.doc \
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page/cenc.doc \
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page/io.doc \
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page/awk.doc \
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page/awk-embed.md \
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page/awk-lang.md \
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page/sed.doc \
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image/qse-logo.png
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28
qse/doc/page/awk-embed.md
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28
qse/doc/page/awk-embed.md
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@ -0,0 +1,28 @@
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Embedding Guid {#embedding-guide}
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================================================================================
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Overview
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---------
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The design of the library is divided into two layers: core and standard.
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The core layer is a skeleton implmenetation that requires various callbacks
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to be useful. The standard layer provides these callbacks in a general respect.
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For example, qse_awk_open() in the core layer requires a set of primitive
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functions to be able to create an awk object while qse_awk_openstd() provides
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qse_awk_open() with a standard set of primitive functions.
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Embedding QSEAWK involves the following steps in the simplest form:
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- open a new awk object
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- parse in a source script
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- open a new runtime context
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- execute pattern-action blocks or call a function
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- decrement the reference count of the return value
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- close the runtime context
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- close the awk object
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\includelineno awk01.c
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You can create multiple runtime contexts over a single awk object. It is useful
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if you want to execute the same AWK script over different data streams.
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@ -100,7 +100,7 @@ extra information useful for debugging. The default mode is **release**.
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debug | enable-debug | BUILD=debug
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release | disable-debug | BUILD=release
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### Character Type ###
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### Character Type ###
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You can choose between the wide charcter type and the multi-byte character
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type as a basic character type represented in the #qse_char_t type. The default
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@ -1,36 +1,7 @@
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/*
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* $Id: awk01.c 441 2011-04-22 14:28:43Z hyunghwan.chung $
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*
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Copyright 2006-2012 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/std.h>
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#include <qse/cmn/stdio.h>
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const qse_char_t* src = QSE_T(
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"BEGIN {"
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" for (i=2;i<=9;i++)"
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" {"
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" for (j=1;j<=9;j++)"
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" print i \"*\" j \"=\" i * j;"
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" print \"---------------------\";"
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" }"
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"}"
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);
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static const qse_char_t* script = QSE_T("BEGIN { print \"hello, world\"; }");
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int main ()
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{
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@ -40,6 +11,7 @@ int main ()
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qse_awk_parsestd_t psin;
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int ret = -1;
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/* create an awk object */
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awk = qse_awk_openstd (0);
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if (awk == QSE_NULL)
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{
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@ -48,9 +20,10 @@ int main ()
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}
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psin.type = QSE_AWK_PARSESTD_STR;
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psin.u.str.ptr = src;
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psin.u.str.len = qse_strlen(src);
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psin.u.str.ptr = script;
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psin.u.str.len = qse_strlen(script);
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/* parse a script in a string */
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if (qse_awk_parsestd (awk, &psin, QSE_NULL) <= -1)
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{
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qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"),
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@ -58,12 +31,13 @@ int main ()
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goto oops;
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}
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/* open a runtime context */
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rtx = qse_awk_rtx_openstd (
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awk,
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0,
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QSE_T("awk01"),
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QSE_NULL, /* stdin */
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QSE_NULL, /* stdout */
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QSE_NULL, /* stdout */
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QSE_NULL /* default cmgr */
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);
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if (rtx == QSE_NULL)
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@ -73,6 +47,7 @@ int main ()
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goto oops;
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}
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/* execute pattern-action blocks */
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retv = qse_awk_rtx_loop (rtx);
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if (retv == QSE_NULL)
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{
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@ -81,12 +56,16 @@ int main ()
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goto oops;
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}
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/* decrement the reference count of the return value */
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qse_awk_rtx_refdownval (rtx, retv);
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ret = 0;
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oops:
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if (rtx != QSE_NULL) qse_awk_rtx_close (rtx);
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if (awk != QSE_NULL) qse_awk_close (awk);
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/* destroy the runtime context */
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if (rtx) qse_awk_rtx_close (rtx);
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/* destroy the awk object */
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if (awk) qse_awk_close (awk);
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return ret;
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}
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