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ASCIIParser.h 3.9KB

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  1. /* This file is part of Lemma, a geophysical modelling and inversion API.
  2. * More information is available at http://lemmasoftware.org
  3. */
  4. /* This Source Code Form is subject to the terms of the Mozilla Public
  5. * License, v. 2.0. If a copy of the MPL was not distributed with this
  6. * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  7. */
  8. /**
  9. * @file
  10. * @date 09/23/2013 02:31:24 PM
  11. * @version $Id$
  12. * @author Trevor Irons (ti)
  13. * @email Trevor.Irons@xri-geo.com
  14. * @copyright Copyright (c) 2013, XRI Geophysics, LLC
  15. * @copyright Copyright (c) 2013, Trevor Irons
  16. */
  17. #ifndef ASCIIPARSER_INC
  18. #define ASCIIPARSER_INC
  19. #include "LemmaObject.h"
  20. #include <fstream>
  21. namespace Lemma {
  22. /**
  23. \brief Provides ASCII input file parsing
  24. \details Able to accomodate various inputs and comment styles
  25. */
  26. class ASCIIParser : public LemmaObject {
  27. friend std::ostream &operator<<(std::ostream &stream,
  28. const ASCIIParser &ob);
  29. public:
  30. // ==================== LIFECYCLE =======================
  31. /**
  32. * Factory method for generating concrete class.
  33. * @return a std::shared_ptr of type ASCIIParser
  34. */
  35. static std::shared_ptr< ASCIIParser > NewSP();
  36. // ==================== OPERATORS =======================
  37. // ==================== OPERATIONS =======================
  38. /** Opens the file up for reading. Throws an exception if something bad happens.
  39. @param[in] fname is the filename to be parsed.
  40. */
  41. void Open (const std::string& fname);
  42. /** Closes the file. Throws an exception if something bad happens.
  43. */
  44. void Close ( );
  45. /** Reads a series of Reals.
  46. * @param[in] nr is the number of reals to read. Enter -1 for the entire file
  47. * @todo throw exception if no file is open
  48. */
  49. std::vector<Real> ReadReals( const int& nr);
  50. /** Reads a series of Reals.
  51. * @param[in] nr is the number of ints to read. Enter -1 for the entire file
  52. * @todo throw exception if no file is open
  53. */
  54. std::vector<int> ReadInts( const int& nr);
  55. /** Reads a series of space delimited strings
  56. * @param[in] nr is the number of strings to read. Enter -1 for the entire file
  57. * @todo throw exception if no file is open
  58. */
  59. std::vector< std::string > ReadStrings( const int& nr);
  60. /**
  61. * @param[in] loc is the point in the file to jump to. Uses seekg
  62. */
  63. void JumpToLocation(const int& loc);
  64. // ==================== ACCESS =======================
  65. /** Sets the comment identifier key.
  66. * @param[in] key is a string identifying comments. All text after the key will be
  67. * ignored by the parser. Default is //
  68. */
  69. void SetCommentString( const std::string& key );
  70. /** Sets the buffer size. This affects the maximum number of column in a line. Defaults
  71. * is 255.
  72. * @param[in] BufferSize is the size of the buffer to use
  73. */
  74. void SetBufferSize( const int& BufferSize);
  75. /**
  76. * @return the current position in the file, as reported by istream::tellg
  77. */
  78. int GetFileLocation();
  79. // ==================== INQUIRY =======================
  80. protected:
  81. // ==================== LIFECYCLE =======================
  82. /** Default protected constructor, use New */
  83. ASCIIParser (const std::string& name);
  84. /** Default protected destructor, use Delete */
  85. ~ASCIIParser ();
  86. /**
  87. * @copybrief LemmaObject::Release()
  88. * @copydetails LemmaObject::Release()
  89. */
  90. void Release();
  91. private:
  92. // ==================== DATA MEMBERS =========================
  93. /** c++ style file IO */
  94. std::fstream input;
  95. /** comment string, defaults to c++ style // */
  96. std::string CommentString;
  97. /** Buffer size, max line width supported, defaults to 255 */
  98. int BufferSize;
  99. }; // ----- end of class ASCIIParser -----
  100. } // ----- end of Lemma name -----
  101. #endif // ----- #ifndef ASCIIPARSER_INC -----