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| author | nyamatongwe <unknown> | 2010-07-13 21:16:48 +1000 | 
|---|---|---|
| committer | nyamatongwe <unknown> | 2010-07-13 21:16:48 +1000 | 
| commit | fd7c21165bbc5200aa24ef89560a8bb40fd37255 (patch) | |
| tree | b5cdec307f1b412f0527eb826a14b806b58cf006 /src/LexFortran.cxx | |
| parent | d47313970ebf3736afffec781f2f9030fa3c8e1a (diff) | |
| download | scintilla-mirror-fd7c21165bbc5200aa24ef89560a8bb40fd37255.tar.gz | |
Moved lexers into lexers directory.
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); | 
