//
// C++ Interface: SourceFileHighlighter
//
// Description:
//
//
// Author: Lorenzo Bettini <http://www.lorenzobettini.it>, (C) 2008
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef SOURCEFILEHIGHLIGHTER_H_
#define SOURCEFILEHIGHLIGHTER_H_
#include <string>
#include <istream>
namespace srchilite {
class SourceHighlighter;
class BufferedOutput;
class PreFormatter;
class LineNumGenerator;
class LineRanges;
class RegexRanges;
class Formatter;
/// debugging policy
enum FileHighlighterDebug {
 NO_DEBUG = 0, DEBUG, DEBUG_INTERACTIVE
};
/**
 * Highlights the contents of a file relying on a SourceHighlighter
 */
class SourceFileHighlighter {
 /// the name of the file to highlight
 const std::string fileName;
 /// the initial regexp state
 SourceHighlighter *sourceHighlighter;
 /// the output object
 BufferedOutput *output;
 /// debugging policy
 FileHighlighterDebug debugPolicy;
 /// the preformatter for characters, e.g., for \n
 PreFormatter *preformatter;
 /// for generation of line numbers (if not null)
 LineNumGenerator *lineNumGenerator;
 /// if not null, it detects whether a line is in the stored ranges
 LineRanges *lineRanges;
 /// if not null, it detects whether a line is in the stored ranges
 RegexRanges *regexRanges;
 /// the formatter for possible context lines
 Formatter *contextFormatter;
 /// a prefix to be generated in front of each formatted code line
 std::string linePrefix;
 /// if specified, a string to be printed between two ranges
 std::string rangeSeparator;
public:
 /**
 * @param file the name of the file to highlight;
 * if the filename is empty then we will process the standard input
 * @param sourceHighlighter the highlighter to highlight paragraphs
 * @param output the output object used to write
 */
 SourceFileHighlighter(const std::string &file,
 SourceHighlighter *sourceHighlighter, BufferedOutput *output);
 void setDebugPolicy(FileHighlighterDebug p) {
 debugPolicy = p;
 }
 void setPreformatter(PreFormatter *pf) {
 preformatter = pf;
 }
 void setContextFormatter(Formatter *cf) {
 contextFormatter = cf;
 }
 void setLineNumGenerator(LineNumGenerator *lG) {
 lineNumGenerator = lG;
 }
 void setLinePrefix(const std::string &prefix) {
 linePrefix = prefix;
 }
 /**
 * The range separator will be automatically preformatted to deal with
 * the specific output format.
 *
 * @param rangeSep
 */
 void setRangeSeparator(const std::string &rangeSep);
 const LineRanges *getLineRanges() const {
 return lineRanges;
 }
 void setLineRanges(LineRanges *lr) {
 lineRanges = lr;
 }
 void setRegexRanges(RegexRanges *rr) {
 regexRanges = rr;
 }
 /**
 * Performs the highlighting; Once the highlighting is finished, this
 * object can be re-used.
 */
 void highlight();
 /**
 * Performs the highlighting of the contents of the given input stream;
 * Once the highlighting is finished, this object can be re-used.
 * @param is
 */
 void highlight(std::istream &is);
 /**
 * Performs the highlighting of the contents of the given string;
 * Once the highlighting is finished, this object can be re-used.
 * @param is
 */
 void highlight(const std::string &is);
};
}
#endif /*SOURCEFILEHIGHLIGHTER_H_*/
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