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Diffstat (limited to 'src/LexFortran.cxx')
| -rw-r--r-- | src/LexFortran.cxx | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/src/LexFortran.cxx b/src/LexFortran.cxx deleted file mode 100644 index 0b3f2777c..000000000 --- a/src/LexFortran.cxx +++ /dev/null @@ -1,466 +0,0 @@ -// Scintilla source code edit control -/** @file LexFortran.cxx - ** Lexer for Fortran. - ** Writen by Chuan-jian Shen, Last changed Sep. 2003 - **/ -// 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 <ctype.h> -#include <stdio.h> -#include <stdarg.h> -/***************************************/ -#include "Platform.h" -#include "PropSet.h" -#include "Accessor.h" -#include "StyleContext.h" -#include "KeyWords.h" -#include "Scintilla.h" -#include "SciLexer.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)); -} -/***************************************/ -inline bool IsABlank(unsigned int ch) { - return (ch == ' ') || (ch == 0x09) || (ch == 0x0b) ; -} -/***************************************/ -inline bool IsALineEnd(char ch) { - return ((ch == '\n') || (ch == '\r')) ; -} -/***************************************/ -unsigned int GetContinuedPos(unsigned int pos, Accessor &styler) { - while (!IsALineEnd(styler.SafeGetCharAt(pos++))) continue; - if (styler.SafeGetCharAt(pos) == '\n') pos++; - while (IsABlank(styler.SafeGetCharAt(pos++))) continue; - char chCur = styler.SafeGetCharAt(pos); - if (chCur == '&') { - while (IsABlank(styler.SafeGetCharAt(++pos))) continue; - return pos; - } else { - return pos; - } -} -/***************************************/ -static void ColouriseFortranDoc(unsigned int startPos, int length, int initStyle, - WordList *keywordlists[], Accessor &styler, bool isFixFormat) { - WordList &keywords = *keywordlists[0]; - WordList &keywords2 = *keywordlists[1]; - WordList &keywords3 = *keywordlists[2]; - /***************************************/ - int posLineStart = 0, numNonBlank = 0, prevState = 0; - int endPos = startPos + length; - /***************************************/ - // backtrack to the nearest keyword - while ((startPos > 1) && (styler.StyleAt(startPos) != SCE_F_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_F_DEFAULT); - } - if (!IsASpaceOrTab(sc.ch)) numNonBlank ++; - /***********************************************/ - // Handle the fix format generically - int toLineStart = sc.currentPos - posLineStart; - if (isFixFormat && (toLineStart < 6 || toLineStart > 72)) { - if ((toLineStart == 0 && (tolower(sc.ch) == 'c' || sc.ch == '*')) || sc.ch == '!') { - if (sc.MatchIgnoreCase("cdec$") || sc.MatchIgnoreCase("*dec$") || sc.MatchIgnoreCase("!dec$") || - sc.MatchIgnoreCase("cdir$") || sc.MatchIgnoreCase("*dir$") || sc.MatchIgnoreCase("!dir$") || - sc.MatchIgnoreCase("cms$") || sc.MatchIgnoreCase("*ms$") || sc.MatchIgnoreCase("!ms$") || - sc.chNext == '$') { - sc.SetState(SCE_F_PREPROCESSOR); - } else { - sc.SetState(SCE_F_COMMENT); - } - - while (!sc.atLineEnd && sc.More()) sc.Forward(); // Until line end - } else if (toLineStart > 72) { - sc.SetState(SCE_F_COMMENT); - while (!sc.atLineEnd && sc.More()) sc.Forward(); // Until line end - } else if (toLineStart < 5) { - if (IsADigit(sc.ch)) - sc.SetState(SCE_F_LABEL); - else - sc.SetState(SCE_F_DEFAULT); - } else if (toLineStart == 5) { - if (!IsASpace(sc.ch) && sc.ch != '0') { - sc.SetState(SCE_F_CONTINUATION); - sc.ForwardSetState(prevState); - } else - sc.SetState(SCE_F_DEFAULT); - } - continue; - } - /***************************************/ - // Handle line continuation generically. - if (!isFixFormat && sc.ch == '&') { - char chTemp = ' '; - int j = 1; - while (IsABlank(chTemp) && j<132) { - chTemp = static_cast<char>(sc.GetRelative(j)); - j++; - } - if (chTemp == '!') { - sc.SetState(SCE_F_CONTINUATION); - if (sc.chNext == '!') sc.ForwardSetState(SCE_F_COMMENT); - } else if (chTemp == '\r' || chTemp == '\n') { - int currentState = sc.state; - sc.SetState(SCE_F_CONTINUATION); - sc.ForwardSetState(SCE_F_DEFAULT); - while (IsASpace(sc.ch) && sc.More()) sc.Forward(); - if (sc.ch == '&') { - sc.SetState(SCE_F_CONTINUATION); - sc.Forward(); - } - sc.SetState(currentState); - } - } - /***************************************/ - // Determine if the current state should terminate. - if (sc.state == SCE_F_OPERATOR) { - sc.SetState(SCE_F_DEFAULT); - } else if (sc.state == SCE_F_NUMBER) { - if (!(IsAWordChar(sc.ch) || sc.ch=='\'' || sc.ch=='\"' || sc.ch=='.')) { - sc.SetState(SCE_F_DEFAULT); - } - } else if (sc.state == SCE_F_IDENTIFIER) { - if (!IsAWordChar(sc.ch) || (sc.ch == '%')) { - char s[100]; - sc.GetCurrentLowered(s, sizeof(s)); - if (keywords.InList(s)) { - sc.ChangeState(SCE_F_WORD); - } else if (keywords2.InList(s)) { - sc.ChangeState(SCE_F_WORD2); - } else if (keywords3.InList(s)) { - sc.ChangeState(SCE_F_WORD3); - } - sc.SetState(SCE_F_DEFAULT); - } - } else if (sc.state == SCE_F_COMMENT || sc.state == SCE_F_PREPROCESSOR) { - if (sc.ch == '\r' || sc.ch == '\n') { - sc.SetState(SCE_F_DEFAULT); - } - } else if (sc.state == SCE_F_STRING1) { - prevState = sc.state; - if (sc.ch == '\'') { - if (sc.chNext == '\'') { - sc.Forward(); - } else { - sc.ForwardSetState(SCE_F_DEFAULT); - prevState = SCE_F_DEFAULT; - } - } else if (sc.atLineEnd) { - sc.ChangeState(SCE_F_STRINGEOL); - sc.ForwardSetState(SCE_F_DEFAULT); - } - } else if (sc.state == SCE_F_STRING2) { - prevState = sc.state; - if (sc.atLineEnd) { - sc.ChangeState(SCE_F_STRINGEOL); - sc.ForwardSetState(SCE_F_DEFAULT); - } else if (sc.ch == '\"') { - if (sc.chNext == '\"') { - sc.Forward(); - } else { - sc.ForwardSetState(SCE_F_DEFAULT); - prevState = SCE_F_DEFAULT; - } - } - } else if (sc.state == SCE_F_OPERATOR2) { - if (sc.ch == '.') { - sc.ForwardSetState(SCE_F_DEFAULT); - } - } else if (sc.state == SCE_F_CONTINUATION) { - sc.SetState(SCE_F_DEFAULT); - } else if (sc.state == SCE_F_LABEL) { - if (!IsADigit(sc.ch)) { - sc.SetState(SCE_F_DEFAULT); - } else { - if (isFixFormat && sc.currentPos-posLineStart > 4) - sc.SetState(SCE_F_DEFAULT); - else if (numNonBlank > 5) - sc.SetState(SCE_F_DEFAULT); - } - } - /***************************************/ - // Determine if a new state should be entered. - if (sc.state == SCE_F_DEFAULT) { - if (sc.ch == '!') { - if (sc.MatchIgnoreCase("!dec$") || sc.MatchIgnoreCase("!dir$") || - sc.MatchIgnoreCase("!ms$") || sc.chNext == '$') { - sc.SetState(SCE_F_PREPROCESSOR); - } else { - sc.SetState(SCE_F_COMMENT); - } - } else if ((!isFixFormat) && IsADigit(sc.ch) && numNonBlank == 1) { - sc.SetState(SCE_F_LABEL); - } else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) { - sc.SetState(SCE_F_NUMBER); - } else if ((tolower(sc.ch) == 'b' || tolower(sc.ch) == 'o' || - tolower(sc.ch) == 'z') && (sc.chNext == '\"' || sc.chNext == '\'')) { - sc.SetState(SCE_F_NUMBER); - sc.Forward(); - } else if (sc.ch == '.' && isalpha(sc.chNext)) { - sc.SetState(SCE_F_OPERATOR2); - } else if (IsAWordStart(sc.ch)) { - sc.SetState(SCE_F_IDENTIFIER); - } else if (sc.ch == '\"') { - sc.SetState(SCE_F_STRING2); - } else if (sc.ch == '\'') { - sc.SetState(SCE_F_STRING1); - } else if (isoperator(static_cast<char>(sc.ch))) { - sc.SetState(SCE_F_OPERATOR); - } - } - } - sc.Complete(); -} -/***************************************/ -// To determine the folding level depending on keywords -static int classifyFoldPointFortran(const char* s, const char* prevWord, const char chNextNonBlank) { - int lev = 0; - if ((strcmp(prevWord, "else") == 0 && strcmp(s, "if") == 0) || strcmp(s, "elseif") == 0) - return -1; - if (strcmp(s, "associate") == 0 || strcmp(s, "block") == 0 - || strcmp(s, "blockdata") == 0 || strcmp(s, "select") == 0 - || strcmp(s, "do") == 0 || strcmp(s, "enum") ==0 - || strcmp(s, "function") == 0 || strcmp(s, "interface") == 0 - || strcmp(s, "module") == 0 || strcmp(s, "program") == 0 - || strcmp(s, "subroutine") == 0 || strcmp(s, "then") == 0 - || (strcmp(s, "type") == 0 && chNextNonBlank != '(') ){ - if (strcmp(prevWord, "end") == 0) - lev = 0; - else - lev = 1; - } else if ((strcmp(s, "end") == 0 && chNextNonBlank != '=') - || strcmp(s, "endassociate") == 0 || strcmp(s, "endblock") == 0 - || strcmp(s, "endblockdata") == 0 || strcmp(s, "endselect") == 0 - || strcmp(s, "enddo") == 0 || strcmp(s, "endenum") ==0 - || strcmp(s, "endif") == 0 || strcmp(s, "endforall") == 0 - || strcmp(s, "endfunction") == 0 || strcmp(s, "endinterface") == 0 - || strcmp(s, "endmodule") == 0 || strcmp(s, "endprogram") == 0 - || strcmp(s, "endsubroutine") == 0 || strcmp(s, "endtype") == 0 - || strcmp(s, "endwhere") == 0 - || strcmp(s, "procedure") == 0 ) { // Take care of the module procedure statement - lev = -1; - } else if (strcmp(prevWord, "end") == 0 && strcmp(s, "if") == 0){ // end if - lev = 0; - } - return lev; -} -// Folding the code -static void FoldFortranDoc(unsigned int startPos, int length, int initStyle, - Accessor &styler, bool isFixFormat) { - // - // 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]; - char chNextNonBlank; - int styleNext = styler.StyleAt(startPos); - int style = initStyle; - /***************************************/ - int lastStart = 0; - char prevWord[32] = ""; - char Label[6] = ""; - // Variables for do label folding. - static int doLabels[100]; - static int posLabel=-1; - /***************************************/ - for (unsigned int i = startPos; i < endPos; i++) { - char ch = chNext; - chNext = styler.SafeGetCharAt(i + 1); - chNextNonBlank = chNext; - unsigned int j=i+1; - while(IsABlank(chNextNonBlank) && j<endPos) { - j ++ ; - chNextNonBlank = styler.SafeGetCharAt(j); - } - int stylePrev = style; - style = styleNext; - styleNext = styler.StyleAt(i + 1); - bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n'); - // - if (stylePrev == SCE_F_DEFAULT && (style == SCE_F_WORD || style == SCE_F_LABEL)) { - // Store last word and label start point. - lastStart = i; - } - /***************************************/ - if (style == SCE_F_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'; - // Handle the forall and where statement and structure. - if (strcmp(s, "forall") == 0 || strcmp(s, "where") == 0) { - if (strcmp(prevWord, "end") != 0) { - j = i + 1; - char chBrace = '(', chSeek = ')', ch1 = styler.SafeGetCharAt(j); - // Find the position of the first ( - while (ch1 != chBrace && j<endPos) { - j++; - ch1 = styler.SafeGetCharAt(j); - } - char styBrace = styler.StyleAt(j); - int depth = 1; - char chAtPos; - char styAtPos; - while (j<endPos) { - j++; - chAtPos = styler.SafeGetCharAt(j); - styAtPos = styler.StyleAt(j); - if (styAtPos == styBrace) { - if (chAtPos == chBrace) depth++; - if (chAtPos == chSeek) depth--; - if (depth == 0) break; - } - } - while (j<endPos) { - j++; - chAtPos = styler.SafeGetCharAt(j); - styAtPos = styler.StyleAt(j); - if (styAtPos == SCE_F_COMMENT || IsABlank(chAtPos)) continue; - if (isFixFormat) { - if (!IsALineEnd(chAtPos)) { - break; - } else { - if (lineCurrent < styler.GetLine(styler.Length()-1)) { - j = styler.LineStart(lineCurrent+1); - if (styler.StyleAt(j+5) == SCE_F_CONTINUATION) { - j += 5; - continue; - } else { - levelCurrent++; - break; - } - } - } - } else { - if (chAtPos == '&' && styler.StyleAt(j) == SCE_F_CONTINUATION) { - j = GetContinuedPos(j+1, styler); - continue; - } else if (IsALineEnd(chAtPos)) { - levelCurrent ++; - break; - } else { - break; - } - } - } - } - } else { - levelCurrent += classifyFoldPointFortran(s, prevWord, chNextNonBlank); - // Store the do Labels into array - if (strcmp(s, "do") == 0 && IsADigit(chNextNonBlank)) { - unsigned int k = 0; - for (i=j; (i<j+5 && i<endPos); i++) { - ch = styler.SafeGetCharAt(i); - if (IsADigit(ch)) - Label[k++] = ch; - else - break; - } - Label[k] = '\0'; - posLabel ++; - doLabels[posLabel] = atoi(Label); - } - } - strcpy(prevWord, s); - } - } else if (style == SCE_F_LABEL) { - if(IsADigit(ch) && !IsADigit(chNext)) { - for(j = 0; ( j < 5 ) && ( j < i-lastStart+1 ); j++) { - ch = styler.SafeGetCharAt(lastStart + j); - if (IsADigit(ch) && styler.StyleAt(lastStart+j) == SCE_F_LABEL) - Label[j] = ch; - else - break; - } - Label[j] = '\0'; - while (doLabels[posLabel] == atoi(Label) && posLabel > -1) { - levelCurrent--; - posLabel--; - } - } - } - 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 FortranWordLists[] = { - "Primary keywords and identifiers", - "Intrinsic functions", - "Extended and user defined functions", - 0, -}; -/***************************************/ -static void ColouriseFortranDocFreeFormat(unsigned int startPos, int length, int initStyle, WordList *keywordlists[], - Accessor &styler) { - ColouriseFortranDoc(startPos, length, initStyle, keywordlists, styler, false); -} -/***************************************/ -static void ColouriseFortranDocFixFormat(unsigned int startPos, int length, int initStyle, WordList *keywordlists[], - Accessor &styler) { - ColouriseFortranDoc(startPos, length, initStyle, keywordlists, styler, true); -} -/***************************************/ -static void FoldFortranDocFreeFormat(unsigned int startPos, int length, int initStyle, - WordList *[], Accessor &styler) { - FoldFortranDoc(startPos, length, initStyle,styler, false); -} -/***************************************/ -static void FoldFortranDocFixFormat(unsigned int startPos, int length, int initStyle, - WordList *[], Accessor &styler) { - FoldFortranDoc(startPos, length, initStyle,styler, true); -} -/***************************************/ -LexerModule lmFortran(SCLEX_FORTRAN, ColouriseFortranDocFreeFormat, "fortran", FoldFortranDocFreeFormat, FortranWordLists); -LexerModule lmF77(SCLEX_F77, ColouriseFortranDocFixFormat, "f77", FoldFortranDocFixFormat, FortranWordLists); 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