Diff of /lexers/LexDMAP.cxx [000000] .. [ac1e9d] Maximize Restore

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+// Scintilla source code edit control
+/** @file LexDMAP.cxx
+ ** Lexer for MSC Nastran DMAP.
+ ** Written by Mark Robinson, based on the Fortran lexer by Chuan-jian Shen, Last changed Aug. 2013
+ **/
+// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
+// 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"
+/***************************************/
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+/***********************************************/
+static inline bool IsAWordChar(const int ch) {
+    return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '%');
+}
+/**********************************************/
+static inline bool IsAWordStart(const int ch) {
+    return (ch < 0x80) && (isalnum(ch));
+}
+/***************************************/
+static void ColouriseDMAPDoc(unsigned int startPos, int length, int initStyle,
+            WordList *keywordlists[], Accessor &styler) {
+    WordList &keywords = *keywordlists[0];
+    WordList &keywords2 = *keywordlists[1];
+    WordList &keywords3 = *keywordlists[2];
+    /***************************************/
+    int posLineStart = 0, numNonBlank = 0;
+    int endPos = startPos + length;
+    /***************************************/
+    // backtrack to the nearest keyword
+    while ((startPos > 1) && (styler.StyleAt(startPos) != SCE_DMAP_WORD)) {
+        startPos--;
+    }
+    startPos = styler.LineStart(styler.GetLine(startPos));
+    initStyle = styler.StyleAt(startPos - 1);
+    StyleContext sc(startPos, endPos-startPos, initStyle, styler);
+    /***************************************/
+    for (; sc.More(); sc.Forward()) {
+        // remember the start position of the line
+        if (sc.atLineStart) {
+            posLineStart = sc.currentPos;
+            numNonBlank = 0;
+            sc.SetState(SCE_DMAP_DEFAULT);
+        }
+        if (!IsASpaceOrTab(sc.ch)) numNonBlank ++;
+        /***********************************************/
+        // Handle data appearing after column 72; it is ignored
+        int toLineStart = sc.currentPos - posLineStart;
+        if (toLineStart >= 72 || sc.ch == '$') {
+            sc.SetState(SCE_DMAP_COMMENT);
+            while (!sc.atLineEnd && sc.More()) sc.Forward(); // Until line end
+            continue;
+        }
+        /***************************************/
+        // Determine if the current state should terminate.
+        if (sc.state == SCE_DMAP_OPERATOR) {
+            sc.SetState(SCE_DMAP_DEFAULT);
+        } else if (sc.state == SCE_DMAP_NUMBER) {
+            if (!(IsAWordChar(sc.ch) || sc.ch=='\'' || sc.ch=='\"' || sc.ch=='.')) {
+                sc.SetState(SCE_DMAP_DEFAULT);
+            }
+        } else if (sc.state == SCE_DMAP_IDENTIFIER) {
+            if (!IsAWordChar(sc.ch) || (sc.ch == '%')) {
+                char s[100];
+                sc.GetCurrentLowered(s, sizeof(s));
+                if (keywords.InList(s)) {
+                    sc.ChangeState(SCE_DMAP_WORD);
+                } else if (keywords2.InList(s)) {
+                    sc.ChangeState(SCE_DMAP_WORD2);
+                } else if (keywords3.InList(s)) {
+                    sc.ChangeState(SCE_DMAP_WORD3);
+                }
+                sc.SetState(SCE_DMAP_DEFAULT);
+            }
+        } else if (sc.state == SCE_DMAP_COMMENT) {
+            if (sc.ch == '\r' || sc.ch == '\n') {
+                sc.SetState(SCE_DMAP_DEFAULT);
+            }
+        } else if (sc.state == SCE_DMAP_STRING1) {
+            if (sc.ch == '\'') {
+                if (sc.chNext == '\'') {
+                    sc.Forward();
+                } else {
+                    sc.ForwardSetState(SCE_DMAP_DEFAULT);
+                }
+            } else if (sc.atLineEnd) {
+                sc.ChangeState(SCE_DMAP_STRINGEOL);
+                sc.ForwardSetState(SCE_DMAP_DEFAULT);
+            }
+        } else if (sc.state == SCE_DMAP_STRING2) {
+            if (sc.atLineEnd) {
+                sc.ChangeState(SCE_DMAP_STRINGEOL);
+                sc.ForwardSetState(SCE_DMAP_DEFAULT);
+            } else if (sc.ch == '\"') {
+                if (sc.chNext == '\"') {
+                    sc.Forward();
+                } else {
+                    sc.ForwardSetState(SCE_DMAP_DEFAULT);
+                }
+            }
+        }
+        /***************************************/
+        // Determine if a new state should be entered.
+        if (sc.state == SCE_DMAP_DEFAULT) {
+            if (sc.ch == '$') {
+                sc.SetState(SCE_DMAP_COMMENT);
+            } else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext)) || (sc.ch == '-' && IsADigit(sc.chNext))) {
+                sc.SetState(SCE_F_NUMBER);
+            } else if (IsAWordStart(sc.ch)) {
+                sc.SetState(SCE_DMAP_IDENTIFIER);
+            } else if (sc.ch == '\"') {
+                sc.SetState(SCE_DMAP_STRING2);
+            } else if (sc.ch == '\'') {
+                sc.SetState(SCE_DMAP_STRING1);
+            } else if (isoperator(static_cast<char>(sc.ch))) {
+                sc.SetState(SCE_DMAP_OPERATOR);
+            }
+        }
+    }
+    sc.Complete();
+}
+/***************************************/
+// To determine the folding level depending on keywords
+static int classifyFoldPointDMAP(const char* s, const char* prevWord) {
+    int lev = 0;
+    if ((strcmp(prevWord, "else") == 0 && strcmp(s, "if") == 0) || strcmp(s, "enddo") == 0 || strcmp(s, "endif") == 0) {
+        lev = -1;
+    } else if ((strcmp(prevWord, "do") == 0 && strcmp(s, "while") == 0) || strcmp(s, "then") == 0) {
+        lev = 1;
+    }
+    return lev;
+}
+// Folding the code
+static void FoldDMAPDoc(unsigned int startPos, int length, int initStyle,
+                           WordList *[], Accessor &styler) {
+    //
+    // bool foldComment = styler.GetPropertyInt("fold.comment") != 0;
+    // Do not know how to fold the comment at the moment.
+    //
+    bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
+    unsigned int endPos = startPos + length;
+    int visibleChars = 0;
+    int 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;
+    /***************************************/
+    int lastStart = 0;
+    char prevWord[32] = "";
+    /***************************************/
+    for (unsigned int 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_DMAP_DEFAULT || stylePrev == SCE_DMAP_OPERATOR || stylePrev == SCE_DMAP_COMMENT) && (style == SCE_DMAP_WORD)) {
+            // Store last word and label start point.
+            lastStart = i;
+        }
+        /***************************************/
+        if (style == SCE_DMAP_WORD) {
+            if(iswordchar(ch) && !iswordchar(chNext)) {
+                char s[32];
+                unsigned int k;
+                for(k=0; (k<31 ) && (k<i-lastStart+1 ); k++) {
+                    s[k] = static_cast<char>(tolower(styler[lastStart+k]));
+                }
+                s[k] = '\0';
+                levelCurrent += classifyFoldPointDMAP(s, prevWord);
+                strcpy(prevWord, s);
+            }
+        }
+        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;
+            strcpy(prevWord, "");
+        }
+        /***************************************/
+        if (!isspacechar(ch)) visibleChars++;
+    }
+    /***************************************/
+    // Fill in the real level of the next line, keeping the current flags as they will be filled in later
+    int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
+    styler.SetLevel(lineCurrent, levelPrev | flagsNext);
+}
+/***************************************/
+static const char * const DMAPWordLists[] = {
+    "Primary keywords and identifiers",
+    "Intrinsic functions",
+    "Extended and user defined functions",
+    0,
+};
+/***************************************/
+LexerModule lmDMAP(SCLEX_DMAP, ColouriseDMAPDoc, "DMAP", FoldDMAPDoc, DMAPWordLists);