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<h1>parser.cpp</h1><a href="parser_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> pbrt source code Copyright(c) 1998-2007 Matt Pharr and Greg Humphreys.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> This file is part of pbrt.</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> pbrt is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00010"></a>00010 <span class="comment"> (at your option) any later version. Note that the text contents of</span>
<a name="l00011"></a>00011 <span class="comment"> the book "Physically Based Rendering" are *not* licensed under the</span>
<a name="l00012"></a>00012 <span class="comment"> GNU GPL.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> pbrt is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00017"></a>00017 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00020"></a>00020 <span class="comment"> along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
<a name="l00021"></a>00021 <span class="comment"></span>
<a name="l00022"></a>00022 <span class="comment"> */</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// parser.cpp*</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="pbrt_8h.html">pbrt.h</a>"</span>
<a name="l00026"></a>00026 <span class="comment">// Parsing Global Interface</span>
<a name="l00027"></a><a class="code" href="pbrt_8h.html#70367bb4acff51203510c2b4d8fd207e">00027</a> <a class="code" href="pbrt_8h.html#1ca894daa11d476d9e76947dceaf0255">COREDLL</a> <span class="keywordtype">bool</span> <a class="code" href="parser_8cpp.html#70367bb4acff51203510c2b4d8fd207e">ParseFile</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *filename) {
<a name="l00028"></a>00028 <span class="keyword">extern</span> FILE *yyin;
<a name="l00029"></a>00029 <span class="keyword">extern</span> <span class="keywordtype">int</span> yyparse(<span class="keywordtype">void</span>);
<a name="l00030"></a>00030 <span class="keyword">extern</span> <span class="keywordtype">string</span> <a class="code" href="core_2samplepat_8cpp.html#3ffcdfc07f90b7e8cdef3ed656156aaf">current_file</a>;
<a name="l00031"></a>00031 <span class="keyword">extern</span> <span class="keywordtype">int</span> <a class="code" href="pbrtlex_8l.html#7661b5d028be7f8997cef563e3890fd9">line_num</a>;
<a name="l00032"></a>00032 <span class="keyword">extern</span> <span class="keywordtype">int</span> yydebug;
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keywordflow">if</span> (getenv(<span class="stringliteral">"PBRT_YYDEBUG"</span>) != NULL)
<a name="l00035"></a>00035 yydebug = 1;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordflow">if</span> (strcmp(filename, <span class="stringliteral">"-"</span>) == 0)
<a name="l00038"></a>00038 yyin = stdin;
<a name="l00039"></a>00039 <span class="keywordflow">else</span>
<a name="l00040"></a>00040 yyin = fopen(filename, <span class="stringliteral">"r"</span>);
<a name="l00041"></a>00041 <span class="keywordflow">if</span> (yyin != NULL) {
<a name="l00042"></a>00042 current_file = filename;
<a name="l00043"></a>00043 <span class="keywordflow">if</span> (yyin == stdin) current_file = <span class="stringliteral">"<standard input>"</span>;
<a name="l00044"></a>00044 line_num = 1;
<a name="l00045"></a>00045 yyparse();
<a name="l00046"></a>00046 <span class="keywordflow">if</span> (yyin != stdin) fclose(yyin);
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048 current_file = <span class="stringliteral">""</span>;
<a name="l00049"></a>00049 line_num = 0;
<a name="l00050"></a>00050 <span class="keywordflow">return</span> (yyin != NULL);
<a name="l00051"></a>00051 }
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