lexothers.cxx.svn-base

Notepad++ is a generic source code editor (it tries to be anyway) and Notepad replacement written in

				styler.ColourTo(startLine + i, SCE_MAKE_OPERATOR);
				bSpecial = true;	// Only react to the first '=' of the line
				state = SCE_MAKE_DEFAULT;
			}
		}
		if (!isspacechar(lineBuffer[i])) {
			lastNonSpace = i;
		}
		i++;
	}
	if (state == SCE_MAKE_IDENTIFIER) {
		styler.ColourTo(endPos, SCE_MAKE_IDEOL);	// Error, variable reference not ended
	} else {
		styler.ColourTo(endPos, SCE_MAKE_DEFAULT);
	}
}

static void ColouriseMakeDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
	char lineBuffer[1024];
	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0;
	unsigned int startLine = startPos;
	for (unsigned int i = startPos; i < startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (AtEOL(styler, i) || (linePos >= sizeof(lineBuffer) - 1)) {
			// End of line (or of line buffer) met, colourise it
			lineBuffer[linePos] = '\0';
			ColouriseMakeLine(lineBuffer, linePos, startLine, i, styler);
			linePos = 0;
			startLine = i + 1;
		}
	}
	if (linePos > 0) {	// Last line does not have ending characters
		ColouriseMakeLine(lineBuffer, linePos, startLine, startPos + length - 1, styler);
	}
}

static bool strstart(const char *haystack, const char *needle) {
	return strncmp(haystack, needle, strlen(needle)) == 0;
}

static int RecogniseErrorListLine(const char *lineBuffer, unsigned int lengthLine) {
	if (lineBuffer[0] == '>') {
		// Command or return status
		return SCE_ERR_CMD;
	} else if (lineBuffer[0] == '<') {
		// Diff removal, but not interested. Trapped to avoid hitting CTAG cases.
		return SCE_ERR_DEFAULT;
	} else if (lineBuffer[0] == '!') {
		return SCE_ERR_DIFF_CHANGED;
	} else if (lineBuffer[0] == '+') {
		if (strstart(lineBuffer, "+++ ")) {
			return SCE_ERR_DIFF_MESSAGE;
		} else {
			return SCE_ERR_DIFF_ADDITION;
		}
	} else if (lineBuffer[0] == '-') {
		if (strstart(lineBuffer, "--- ")) {
			return SCE_ERR_DIFF_MESSAGE;
		} else {
			return SCE_ERR_DIFF_DELETION;
		}
	} else if (strstart(lineBuffer, "cf90-")) {
		// Absoft Pro Fortran 90/95 v8.2 error and/or warning message
		return SCE_ERR_ABSF;
	} else if (strstart(lineBuffer, "fortcom:")) {
		// Intel Fortran Compiler v8.0 error/warning message
		return SCE_ERR_IFORT;
	} else if (strstr(lineBuffer, "File \"") && strstr(lineBuffer, ", line ")) {
		return SCE_ERR_PYTHON;
	} else if (strstr(lineBuffer, " in ") && strstr(lineBuffer, " on line ")) {
		return SCE_ERR_PHP;
	} else if ((strstart(lineBuffer, "Error ") ||
	            strstart(lineBuffer, "Warning ")) &&
	           strstr(lineBuffer, " at (") &&
	           strstr(lineBuffer, ") : ") &&
	           (strstr(lineBuffer, " at (") < strstr(lineBuffer, ") : "))) {
		// Intel Fortran Compiler error/warning message
		return SCE_ERR_IFC;
	} else if (strstart(lineBuffer, "Error ")) {
		// Borland error message
		return SCE_ERR_BORLAND;
	} else if (strstart(lineBuffer, "Warning ")) {
		// Borland warning message
		return SCE_ERR_BORLAND;
	} else if (strstr(lineBuffer, "at line " ) &&
	           (strstr(lineBuffer, "at line " ) < (lineBuffer + lengthLine)) &&
	           strstr(lineBuffer, "file ") &&
	           (strstr(lineBuffer, "file ") < (lineBuffer + lengthLine))) {
		// Lua 4 error message
		return SCE_ERR_LUA;
	} else if (strstr(lineBuffer, " at " ) &&
	           (strstr(lineBuffer, " at " ) < (lineBuffer + lengthLine)) &&
	           strstr(lineBuffer, " line ") &&
	           (strstr(lineBuffer, " line ") < (lineBuffer + lengthLine)) &&
	           (strstr(lineBuffer, " at " ) < (strstr(lineBuffer, " line ")))) {
		// perl error message
		return SCE_ERR_PERL;
	} else if ((memcmp(lineBuffer, "   at ", 6) == 0) &&
	           strstr(lineBuffer, ":line ")) {
		// A .NET traceback
		return SCE_ERR_NET;
	} else if (strstart(lineBuffer, "Line ") &&
	           strstr(lineBuffer, ", file ")) {
		// Essential Lahey Fortran error message
		return SCE_ERR_ELF;
	} else if (strstart(lineBuffer, "line ") &&
	           strstr(lineBuffer, " column ")) {
		// HTML tidy style: line 42 column 1
		return SCE_ERR_TIDY;
	} else if (strstart(lineBuffer, "\tat ") &&
	           strstr(lineBuffer, "(") &&
	           strstr(lineBuffer, ".java:")) {
		// Java stack back trace
		return SCE_ERR_JAVA_STACK;
	} else {
		// Look for one of the following formats:
		// GCC: <filename>:<line>:<message>
		// Microsoft: <filename>(<line>) :<message>
		// Common: <filename>(<line>): warning|error|note|remark|catastrophic|fatal
		// Common: <filename>(<line>) warning|error|note|remark|catastrophic|fatal
		// Microsoft: <filename>(<line>,<column>)<message>
		// CTags: \t<message>
		// Lua 5 traceback: \t<filename>:<line>:<message>
		bool initialTab = (lineBuffer[0] == '\t');
		enum { stInitial,
			stGccStart, stGccDigit, stGcc,
			stMsStart, stMsDigit, stMsBracket, stMsVc, stMsDigitComma, stMsDotNet,
			stCtagsStart, stCtagsStartString, stCtagsStringDollar, stCtags,
			stUnrecognized
		} state = stInitial;
		for (unsigned int i = 0; i < lengthLine; i++) {
			char ch = lineBuffer[i];
			char chNext = ' ';
			if ((i + 1) < lengthLine)
				chNext = lineBuffer[i + 1];
			if (state == stInitial) {
				if (ch == ':') {
					// May be GCC, or might be Lua 5 (Lua traceback same but with tab prefix)
					if ((chNext != '\\') && (chNext != '/')) {
						// This check is not completely accurate as may be on
						// GTK+ with a file name that includes ':'.
						state = stGccStart;
					}
				} else if ((ch == '(') && Is1To9(chNext) && (!initialTab)) {
					// May be Microsoft
					// Check against '0' often removes phone numbers
					state = stMsStart;
				} else if ((ch == '\t') && (!initialTab)) {
					// May be CTags
					state = stCtagsStart;
				}
			} else if (state == stGccStart) {	// <filename>:
				state = Is1To9(ch) ? stGccDigit : stUnrecognized;
			} else if (state == stGccDigit) {	// <filename>:<line>
				if (ch == ':') {
					state = stGcc;	// :9.*: is GCC
					break;
				} else if (!Is0To9(ch)) {
					state = stUnrecognized;
				}
			} else if (state == stMsStart) {	// <filename>(
				state = Is0To9(ch) ? stMsDigit : stUnrecognized;
			} else if (state == stMsDigit) {	// <filename>(<line>
				if (ch == ',') {
					state = stMsDigitComma;
				} else if (ch == ')') {
					state = stMsBracket;
				} else if ((ch != ' ') && !Is0To9(ch)) {
					state = stUnrecognized;
				}
			} else if (state == stMsBracket) {	// <filename>(<line>)
				if ((ch == ' ') && (chNext == ':')) {
					state = stMsVc;
				} else if ((ch == ':' && chNext == ' ') || (ch == ' ')) {
					// Possibly Delphi.. don't test against chNext as it's one of the strings below.
					char word[512];
					unsigned int j, chPos;
					unsigned numstep;
					chPos = 0;
					if (ch == ' ')
						numstep = 1; // ch was ' ', handle as if it's a delphi errorline, only add 1 to i.
					else
						numstep = 2; // otherwise add 2.
					for (j = i + numstep; j < lengthLine && isalpha(lineBuffer[j]) && chPos < sizeof(word) - 1; j++)
						word[chPos++] = lineBuffer[j];
					word[chPos] = 0;
					if (!CompareCaseInsensitive(word, "error") || !CompareCaseInsensitive(word, "warning") ||
						!CompareCaseInsensitive(word, "fatal") || !CompareCaseInsensitive(word, "catastrophic") ||
						!CompareCaseInsensitive(word, "note") || !CompareCaseInsensitive(word, "remark")) {
						state = stMsVc;
					} else
						state = stUnrecognized;
				} else {
					state = stUnrecognized;
				}
			} else if (state == stMsDigitComma) {	// <filename>(<line>,
				if (ch == ')') {
					state = stMsDotNet;
					break;
				} else if ((ch != ' ') && !Is0To9(ch)) {
					state = stUnrecognized;
				}
			} else if (state == stCtagsStart) {
				if ((lineBuffer[i - 1] == '\t') &&
				        ((ch == '/' && lineBuffer[i + 1] == '^') || Is0To9(ch))) {
					state = stCtags;
					break;
				} else if ((ch == '/') && (lineBuffer[i + 1] == '^')) {
					state = stCtagsStartString;
				}
			} else if ((state == stCtagsStartString) && ((lineBuffer[i] == '$') && (lineBuffer[i + 1] == '/'))) {
				state = stCtagsStringDollar;
				break;
			}
		}
		if (state == stGcc) {
			return SCE_ERR_GCC;
		} else if ((state == stMsVc) || (state == stMsDotNet)) {
			return SCE_ERR_MS;
		} else if ((state == stCtagsStringDollar) || (state == stCtags)) {
			return SCE_ERR_CTAG;
		} else {
			return SCE_ERR_DEFAULT;
		}
	}
}

static void ColouriseErrorListLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int endPos,
    Accessor &styler) {
	styler.ColourTo(endPos, RecogniseErrorListLine(lineBuffer, lengthLine));
}

static void ColouriseErrorListDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
	char lineBuffer[10000];
	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0;
	for (unsigned int i = startPos; i < startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (AtEOL(styler, i) || (linePos >= sizeof(lineBuffer) - 1)) {
			// End of line (or of line buffer) met, colourise it
			lineBuffer[linePos] = '\0';
			ColouriseErrorListLine(lineBuffer, linePos, i, styler);
			linePos = 0;
		}
	}
	if (linePos > 0) {	// Last line does not have ending characters
		ColouriseErrorListLine(lineBuffer, linePos, startPos + length - 1, styler);
	}
}

static int isSpecial(char s) {
	return (s == '\\') || (s == ',') || (s == ';') || (s == '\'') || (s == ' ') ||
	       (s == '\"') || (s == '`') || (s == '^') || (s == '~');
}

static int isTag(int start, Accessor &styler) {
	char s[6];
	unsigned int i = 0, e = 1;
	while (i < 5 && e) {
		s[i] = styler[start + i];
		i++;
		e = styler[start + i] != '{';
	}
	s[i] = '\0';
	return (strcmp(s, "begin") == 0) || (strcmp(s, "end") == 0);
}

static void ColouriseLatexDoc(unsigned int startPos, int length, int initStyle,
                              WordList *[], Accessor &styler) {

	styler.StartAt(startPos);

	int state = initStyle;
	char chNext = styler[startPos];
	styler.StartSegment(startPos);
	int lengthDoc = startPos + length;

	for (int i = startPos; i < lengthDoc; i++) {
		char ch = chNext;
		chNext = styler.SafeGetCharAt(i + 1);

		if (styler.IsLeadByte(ch)) {
			chNext = styler.SafeGetCharAt(i + 2);
			i++;
			continue;
		}
		switch (state) {
		case SCE_L_DEFAULT :
			switch (ch) {
			case '\\' :
				styler.ColourTo(i - 1, state);
				if (isSpecial(styler[i + 1])) {
					styler.ColourTo(i + 1, SCE_L_COMMAND);
					i++;
					chNext = styler.SafeGetCharAt(i + 1);
				} else {
					if (isTag(i + 1, styler))
						state = SCE_L_TAG;
					else
						state = SCE_L_COMMAND;
				}
				break;
			case '$' :
				styler.ColourTo(i - 1, state);
				state = SCE_L_MATH;
				if (chNext == '$') {
					i++;
					chNext = styler.SafeGetCharAt(i + 1);
				}
				break;
			case '%' :
				styler.ColourTo(i - 1, state);
				state = SCE_L_COMMENT;
				break;
			}
			break;
		case SCE_L_COMMAND :
			if (chNext == '[' || chNext == '{' || chNext == '}' ||
			        chNext == ' ' || chNext == '\r' || chNext == '\n') {
				styler.ColourTo(i, state);
				state = SCE_L_DEFAULT;
				i++;
				chNext = styler.SafeGetCharAt(i + 1);
			}
			break;
		case SCE_L_TAG :
			if (ch == '}') {
				styler.ColourTo(i, state);
				state = SCE_L_DEFAULT;
			}
			break;
		case SCE_L_MATH :
			if (ch == '$') {
				if (chNext == '$') {
					i++;
					chNext = styler.SafeGetCharAt(i + 1);
				}
				styler.ColourTo(i, state);
				state = SCE_L_DEFAULT;
			}
			break;
		case SCE_L_COMMENT :
			if (ch == '\r' || ch == '\n') {
				styler.ColourTo(i - 1, state);
				state = SCE_L_DEFAULT;
			}
		}
	}
	styler.ColourTo(lengthDoc-1, state);
}

static const char * const batchWordListDesc[] = {
	"Internal Commands",
	"External Commands",
	0
};

static const char * const emptyWordListDesc[] = {
	0
};

static void ColouriseNullDoc(unsigned int startPos, int length, int, WordList *[],
                            Accessor &styler) {
	// Null language means all style bytes are 0 so just mark the end - no need to fill in.
	if (length > 0) {
		styler.StartAt(startPos + length - 1);
		styler.StartSegment(startPos + length - 1);
		styler.ColourTo(startPos + length - 1, 0);
	}
}

LexerModule lmBatch(SCLEX_BATCH, ColouriseBatchDoc, "batch", 0, batchWordListDesc);
LexerModule lmDiff(SCLEX_DIFF, ColouriseDiffDoc, "diff", FoldDiffDoc, emptyWordListDesc);
LexerModule lmProps(SCLEX_PROPERTIES, ColourisePropsDoc, "props", FoldPropsDoc, emptyWordListDesc);
LexerModule lmMake(SCLEX_MAKEFILE, ColouriseMakeDoc, "makefile", 0, emptyWordListDesc);
LexerModule lmErrorList(SCLEX_ERRORLIST, ColouriseErrorListDoc, "errorlist", 0, emptyWordListDesc);
LexerModule lmLatex(SCLEX_LATEX, ColouriseLatexDoc, "latex", 0, emptyWordListDesc);
LexerModule lmNull(SCLEX_NULL, ColouriseNullDoc, "null");