source/highlight.h

   1 /* $Id: highlight.h,v 1.16 2008/01/04 22:11:03 yooden Exp $ */
   2 /*******************************************************************************
   3 *                                                                              *
   4 * highlight.h -- Nirvana Editor Syntax Highlighting Header File                *
   5 *                                                                              *
   6 * Copyright 2003 The NEdit Developers                                          *
   7 *                                                                              *
   8 * This is free software; you can redistribute it and/or modify it under the    *
   9 * terms of the GNU General Public License as published by the Free Software    *
  10 * Foundation; either version 2 of the License, or (at your option) any later   *
  11 * version. In addition, you may distribute versions of this program linked to  *
  12 * Motif or Open Motif. See README for details.                                 *
  13 *                                                                              *
  14 * This software is distributed in the hope that it will be useful, but WITHOUT *
  15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
  16 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for    *
  17 * more details.                                                                *
  18 *                                                                              *
  19 * You should have received a copy of the GNU General Public License along with *
  20 * software; if not, write to the Free Software Foundation, Inc., 59 Temple     *
  21 * Place, Suite 330, Boston, MA  02111-1307 USA                                 *
  22 *                                                                              *
  23 * Nirvana Text Editor                                                          *
  24 * July 31, 2001                                                                *
  25 *                                                                              *
  26 *******************************************************************************/
  27
  28 #ifndef NEDIT_HIGHLIGHT_H_INCLUDED
  29 #define NEDIT_HIGHLIGHT_H_INCLUDED
  30
  31 #include "nedit.h"
  32
  33 #include <X11/Intrinsic.h>
  34
  35 /* Pattern flags for modifying pattern matching behavior */
  36 #define PARSE_SUBPATS_FROM_START 1
  37 #define DEFER_PARSING 2
  38 #define COLOR_ONLY 4
  39
  40 /* Don't use plain 'A' or 'B' for style indices, it causes problems
  41    with EBCDIC coding (possibly negative offsets when subtracting 'A'). */
  42 #define ASCII_A ((char)65)
  43
  44 /* Pattern specification structure */
  45 typedef struct {
  46     char *name;
  47     char *startRE;
  48     char *endRE;
  49     char *errorRE;
  50     char *style;
  51     char *subPatternOf;
  52     int flags;
  53 } highlightPattern;
  54
  55 /* Header for a set of patterns */
  56 typedef struct {
  57     char *languageMode;
  58     int lineContext;
  59     int charContext;
  60     int nPatterns;
  61     highlightPattern *patterns;
  62 } patternSet;
  63
  64 void SyntaxHighlightModifyCB(int pos, int nInserted, int nDeleted,
  65         int nRestyled, const char *deletedText, void *cbArg);
  66 void StartHighlighting(WindowInfo *window, int warn);
  67 void StopHighlighting(WindowInfo *window);
  68 void AttachHighlightToWidget(Widget widget, WindowInfo *window);
  69 void FreeHighlightingData(WindowInfo *window);
  70 void RemoveWidgetHighlight(Widget widget);
  71 void UpdateHighlightStyles(WindowInfo *window);
  72 int TestHighlightPatterns(patternSet *patSet);
  73 Pixel AllocateColor(Widget w, const char *colorName);
  74 Pixel AllocColor(Widget w, const char *colorName, int *r, int *g, int *b);
  75 void* GetHighlightInfo(WindowInfo *window, int pos);
  76 highlightPattern *FindPatternOfWindow(WindowInfo *window, char *name);
  77 int HighlightCodeOfPos(WindowInfo *window, int pos);
  78 int HighlightLengthOfCodeFromPos(WindowInfo *window, int pos, int *checkCode);
  79 int StyleLengthOfCodeFromPos(WindowInfo *window, int pos, const char **checkStyleName);
  80 char *HighlightNameOfCode(WindowInfo *window, int hCode);
  81 char *HighlightStyleOfCode(WindowInfo *window, int hCode);
  82 Pixel HighlightColorValueOfCode(WindowInfo *window, int hCode,
  83       int *r, int *g, int *b);
  84 Pixel GetHighlightBGColorOfCode(WindowInfo *window, int hCode,
  85       int *r, int *g, int *b);
  86
  87 #endif /* NEDIT_HIGHLIGHT_H_INCLUDED */