d699f48ba3
the Watcom and other compilers. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11217 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
/****************************************************************************
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*
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* wxWindows HTML Applet Package
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*
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* Copyright (C) 1991-2001 SciTech Software, Inc.
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* All rights reserved.
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*
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* ========================================================================
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*
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* The contents of this file are subject to the wxWindows License
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* Version 3.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.wxwindows.org/licence3.txt
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* ========================================================================
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*
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* Language: ANSI C++
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* Environment: Any
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*
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* Description: This file is the implementation of the Preprocessor object
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* for parsing the <!--#echo directive
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*
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****************************************************************************/
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// For compilers that support precompilation
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#include "wx/wxprec.h"
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#include "wx/html/forcelnk.h"
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// Include private headers
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#include "wx/applet/prepecho.h"
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#include "wx/applet/echovar.h"
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/*---------------------------- Global variables ---------------------------*/
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/*----------------------------- Implementation ----------------------------*/
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/****************************************************************************
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PARAMETERS:
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text - HTML to process for echo directives
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RETURNS:
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The string containing the processed HTML
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REMARKS:
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This function replaces #echo directives with a variable retrieved from the
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class given in the HTML directive. These classes are created by making a sub
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class of wxEchoVariable. Dynamic class construction is used at run time
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internally to create an instance of this class and access the value of the
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variable.
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SEE ALSO:
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wxEchoVariable
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****************************************************************************/
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wxString wxEchoPrep::Process(
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const wxString& text) const
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{
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int i;
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char ft[] = "<!--#echo ";
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// make a copy so we can replace text as we go without affecting the original
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wxString output = text;
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while ((i = (output.Lower()).Find(ft)) != -1) {
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// Loop until every #echo directive is found
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int n, c, end;
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wxString cname, parms;
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wxString tag;
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// grab the tag and remove it from the file
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end = (output.Mid(i)).Find("-->");
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if (end == -1) {
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#ifdef CHECKED
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wxMessageBox("wxHTML #echo error: Premature end of file while parsing #echo.","Error",wxICON_ERROR);
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#endif
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break;
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}
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end += 3;
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tag = output.Mid(i, end);
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output.Remove(i, end);
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n = (tag.Lower()).Find(" parm=");
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c = tag.Find("-->");
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if (n == -1) {
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n = c;
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// find the classname
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c = (tag.Mid(10, n-10)).Find(" ");
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if (c == -1) n -= 10;
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else n = c;
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cname = tag.Mid(10, n);
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// grab the value from the class, put it in tag since the data is no longer needed
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tag = wxEchoVariable::FindValue(cname, NULL);
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}
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else {
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// Find the parms
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parms = tag.Mid(n+6, c-n-6);
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// Clip off any quotation marks if they exist. (don't die if there arn't any)
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c = parms.Find("\"");
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if (c != -1) parms = parms.Mid(c+1);
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c = parms.Find("\"");
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if (c != -1) parms = parms.Mid(0, c);
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// find the classname
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c = (tag.Mid(10, n-10)).Find(" ");
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if (c == -1) n -= 10;
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else n = c;
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cname = tag.Mid(10, n);
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// grab the value from the class, put it in tag since the data is no longer needed
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tag = wxEchoVariable::FindValue(cname, parms.c_str());
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}
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output = (output.Mid(0,i) + tag + output.Mid(i));
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}
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return output;
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}
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FORCE_LINK(echovar)
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