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Diffstat (limited to 'lexers/LexPLM.cxx')
| -rw-r--r-- | lexers/LexPLM.cxx | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/lexers/LexPLM.cxx b/lexers/LexPLM.cxx deleted file mode 100644 index 653242fab..000000000 --- a/lexers/LexPLM.cxx +++ /dev/null @@ -1,200 +0,0 @@ -// Copyright (c) 1990-2007, Scientific Toolworks, Inc. -// @file LexPLM.cxx -// Author: Jason Haslam -// The License.txt file describes the conditions under which this software may be distributed. - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> -#include <stdarg.h> -#include <assert.h> -#include <ctype.h> - -#include "ILexer.h" -#include "Scintilla.h" -#include "SciLexer.h" - -#include "WordList.h" -#include "LexAccessor.h" -#include "Accessor.h" -#include "StyleContext.h" -#include "CharacterSet.h" -#include "LexerModule.h" - -using namespace Scintilla; - -static void GetRange(Sci_PositionU start, - Sci_PositionU end, - Accessor &styler, - char *s, - Sci_PositionU len) { - Sci_PositionU i = 0; - while ((i < end - start + 1) && (i < len-1)) { - s[i] = static_cast<char>(tolower(styler[start + i])); - i++; - } - s[i] = '\0'; -} - -static void ColourisePlmDoc(Sci_PositionU startPos, - Sci_Position length, - int initStyle, - WordList *keywordlists[], - Accessor &styler) -{ - Sci_PositionU endPos = startPos + length; - int state = initStyle; - - styler.StartAt(startPos); - styler.StartSegment(startPos); - - for (Sci_PositionU i = startPos; i < endPos; i++) { - char ch = styler.SafeGetCharAt(i); - char chNext = styler.SafeGetCharAt(i + 1); - - if (state == SCE_PLM_DEFAULT) { - if (ch == '/' && chNext == '*') { - styler.ColourTo(i - 1, state); - state = SCE_PLM_COMMENT; - } else if (ch == '\'') { - styler.ColourTo(i - 1, state); - state = SCE_PLM_STRING; - } else if (isdigit(ch)) { - styler.ColourTo(i - 1, state); - state = SCE_PLM_NUMBER; - } else if (isalpha(ch)) { - styler.ColourTo(i - 1, state); - state = SCE_PLM_IDENTIFIER; - } else if (ch == '+' || ch == '-' || ch == '*' || ch == '/' || - ch == '=' || ch == '<' || ch == '>' || ch == ':') { - styler.ColourTo(i - 1, state); - state = SCE_PLM_OPERATOR; - } else if (ch == '$') { - styler.ColourTo(i - 1, state); - state = SCE_PLM_CONTROL; - } - } else if (state == SCE_PLM_COMMENT) { - if (ch == '*' && chNext == '/') { - i++; - styler.ColourTo(i, state); - state = SCE_PLM_DEFAULT; - } - } else if (state == SCE_PLM_STRING) { - if (ch == '\'') { - if (chNext == '\'') { - i++; - } else { - styler.ColourTo(i, state); - state = SCE_PLM_DEFAULT; - } - } - } else if (state == SCE_PLM_NUMBER) { - if (!isdigit(ch) && !isalpha(ch) && ch != '$') { - i--; - styler.ColourTo(i, state); - state = SCE_PLM_DEFAULT; - } - } else if (state == SCE_PLM_IDENTIFIER) { - if (!isdigit(ch) && !isalpha(ch) && ch != '$') { - // Get the entire identifier. - char word[1024]; - Sci_Position segmentStart = styler.GetStartSegment(); - GetRange(segmentStart, i - 1, styler, word, sizeof(word)); - - i--; - if (keywordlists[0]->InList(word)) - styler.ColourTo(i, SCE_PLM_KEYWORD); - else - styler.ColourTo(i, state); - state = SCE_PLM_DEFAULT; - } - } else if (state == SCE_PLM_OPERATOR) { - if (ch != '=' && ch != '>') { - i--; - styler.ColourTo(i, state); - state = SCE_PLM_DEFAULT; - } - } else if (state == SCE_PLM_CONTROL) { - if (ch == '\r' || ch == '\n') { - styler.ColourTo(i - 1, state); - state = SCE_PLM_DEFAULT; - } - } - } - styler.ColourTo(endPos - 1, state); -} - -static void FoldPlmDoc(Sci_PositionU startPos, - Sci_Position length, - int initStyle, - WordList *[], - Accessor &styler) -{ - bool foldComment = styler.GetPropertyInt("fold.comment") != 0; - bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0; - Sci_PositionU endPos = startPos + length; - int visibleChars = 0; - Sci_Position lineCurrent = styler.GetLine(startPos); - int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK; - int levelCurrent = levelPrev; - char chNext = styler[startPos]; - int styleNext = styler.StyleAt(startPos); - int style = initStyle; - Sci_Position startKeyword = 0; - - for (Sci_PositionU i = startPos; i < endPos; i++) { - char ch = chNext; - chNext = styler.SafeGetCharAt(i + 1); - int stylePrev = style; - style = styleNext; - styleNext = styler.StyleAt(i + 1); - bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n'); - - if (stylePrev != SCE_PLM_KEYWORD && style == SCE_PLM_KEYWORD) - startKeyword = i; - - if (style == SCE_PLM_KEYWORD && styleNext != SCE_PLM_KEYWORD) { - char word[1024]; - GetRange(startKeyword, i, styler, word, sizeof(word)); - - if (strcmp(word, "procedure") == 0 || strcmp(word, "do") == 0) - levelCurrent++; - else if (strcmp(word, "end") == 0) - levelCurrent--; - } - - if (foldComment) { - if (stylePrev != SCE_PLM_COMMENT && style == SCE_PLM_COMMENT) - levelCurrent++; - else if (stylePrev == SCE_PLM_COMMENT && style != SCE_PLM_COMMENT) - levelCurrent--; - } - - if (atEOL) { - int lev = levelPrev; - if (visibleChars == 0 && foldCompact) - lev |= SC_FOLDLEVELWHITEFLAG; - if ((levelCurrent > levelPrev) && (visibleChars > 0)) - lev |= SC_FOLDLEVELHEADERFLAG; - if (lev != styler.LevelAt(lineCurrent)) { - styler.SetLevel(lineCurrent, lev); - } - lineCurrent++; - levelPrev = levelCurrent; - visibleChars = 0; - } - - if (!isspacechar(ch)) - visibleChars++; - } - - int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK; - styler.SetLevel(lineCurrent, levelPrev | flagsNext); -} - -static const char *const plmWordListDesc[] = { - "Keywords", - 0 -}; - -LexerModule lmPLM(SCLEX_PLM, ColourisePlmDoc, "PL/M", FoldPlmDoc, plmWordListDesc); |