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ImageExprGram.h
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1 //# ImageExprGram.h: Grammar for image expressions
2 //# Copyright (C) 1998
3 //# Associated Universities, Inc. Washington DC, USA.
4 //#
5 //# This library is free software; you can redistribute it and/or modify it
6 //# under the terms of the GNU Library General Public License as published by
7 //# the Free Software Foundation; either version 2 of the License, or (at your
8 //# option) any later version.
9 //#
10 //# This library is distributed in the hope that it will be useful, but WITHOUT
11 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 //# License for more details.
14 //#
15 //# You should have received a copy of the GNU Library General Public License
16 //# along with this library; if not, write to the Free Software Foundation,
17 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18 //#
19 //# Correspondence concerning AIPS++ should be addressed as follows:
20 //# Internet email: aips2-request@nrao.edu.
21 //# Postal address: AIPS++ Project Office
22 //# National Radio Astronomy Observatory
23 //# 520 Edgemont Road
24 //# Charlottesville, VA 22903-2475 USA
25 //#
26 //# $Id$
27 
28 #ifndef IMAGES_IMAGEEXPRGRAM_H
29 #define IMAGES_IMAGEEXPRGRAM_H
30 
31 
32 //# Includes
33 #include <casacore/casa/aips.h>
35 
36 namespace casacore { //# NAMESPACE CASACORE - BEGIN
37 
38 //# Forward Declarations
39 
40 
41 // <summary>
42 // Global functions for flex/bison scanner/parser for ImageExprGram
43 // </summary>
44 
45 // <use visibility=local>
46 
47 // <reviewed reviewer="" date="" tests="">
48 // </reviewed>
49 
50 // <prerequisite>
51 //# Classes you should understand before using this one.
52 // <li> ImageExprGram.l and .y (flex and bison grammar)
53 // </prerequisite>
54 
55 // <synopsis>
56 // Global functions are needed to define the input of the flex scanner
57 // and to start the bison parser.
58 // The input is taken from a string.
59 // </synopsis>
60 
61 // <motivation>
62 // It is necessary to be able to give an image expression in ASCII.
63 // This can be used in glish.
64 // </motivation>
65 
66 // <todo asof="$DATE:$">
67 //# A List of bugs, limitations, extensions or planned refinements.
68 // </todo>
69 
70 
71 // <group name=ImageExprGramFunctions>
72 
73 // Declare the bison parser (is implemented by bison command).
74 int imageExprGramParseCommand (const String& command);
75 
76 // The yyerror function for the parser.
77 // It throws an exception with the current token.
78 void ImageExprGramerror (const char*);
79 
80 // Give the current position in the string.
81 // This can be used when parse errors occur.
82 Int& imageExprGramPosition();
83 
84 // Declare the input routine for flex/bison.
85 int imageExprGramInput (char* buf, int max_size);
86 
87 // A function to remove escaped characters.
88 String imageExprGramRemoveEscapes (const String& in);
89 
90 // A function to remove quotes from a quoted string.
91 String imageExprGramRemoveQuotes (const String& in);
92 
93 // </group>
94 
95 
96 
97 } //# NAMESPACE CASACORE - END
98 
99 #endif
int Int
Definition: aipstype.h:50
String: the storage and methods of handling collections of characters.
Definition: String.h:225