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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
// Matt Wells, copyright Jul 2001
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// . highlights the terms in Query "q" in "xml" and puts results in m_buf
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#include "Words.h"
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#include "Query.h"
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#include "Matches.h"
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#include "Xml.h"
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#include "Url.h"
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#ifndef _HIGHLIGHT_H_
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#define _HIGHLIGHT_H_
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class Highlight {
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public:
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// . content is an html/xml doc
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// . we highlight Query "q" in "xml" as best as we can
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// . store highlighted text into "buf"
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// . return length stored into "buf"
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long set ( char *buf ,
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long bufLen ,
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char *content ,
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long contentLen ,
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char docLangId ,
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Query *q ,
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bool doStemming ,
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bool useAnchors , // = false ,
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const char *baseUrl , // = NULL ,
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const char *frontTag , // = NULL ,
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const char *backTag , // = NULL ,
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long fieldCode , // = 0 ,
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long niceness ) ;
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long set ( char *buf ,
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long bufLen ,
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Words *words ,
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Matches *matches ,
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bool doStemming ,
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bool useAnchors = false ,
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const char *baseUrl = NULL ,
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const char *frontTag = NULL ,
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const char *backTag = NULL ,
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long fieldCode = 0 ,
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Query *q = NULL ) ;
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long getNumMatches() { return m_numMatches; }
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private:
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bool highlightWords ( Words *words , Matches *m , Query *q=NULL );
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// null terminate and store the highlighted content in m_buf
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char *m_buf ;
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long m_bufLen;
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char *m_bufPtr;
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char *m_bufEnd;
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//Words m_words;
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Matches m_matches;
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//Xml *m_xml;
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const char *m_frontTag;
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const char *m_backTag;
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long m_frontTagLen;
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long m_backTagLen;
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bool m_doStemming;
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bool m_useAnchors; // click and scroll technology for cached pages
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long m_anchorCounts [ MAX_QUERY_TERMS ];
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const char *m_baseUrl;
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long m_numMatches;
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// so we don't repeat the same buf overflow error msg a gazillion times
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bool m_didErrMsg;
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// . field code of the text excerpt to highlight
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// . only query terms with this fieldCode will be highlighted
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long m_fieldCode;
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};
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#endif
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