1 files changed, 133 insertions, 0 deletions
diff --git a/src/LexAsm.cxx b/src/LexAsm.cxx
new file mode 100644
index 000000000..d0d606c79
--- /dev/null
+++ b/src/LexAsm.cxx
@@ -0,0 +1,133 @@
+// Scintilla source code edit control
+/** @file LexAsm.cxx
+ ** Lexer for Assembler, just for the Masm Syntax
+ ** Written by The Black Horus
+ **/
+// Copyright 1998-2002 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"
+
+
+
+static inline bool IsAWordChar(const int ch) {
+	return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_' || ch =='\\');
+}
+
+static inline bool IsAWordStart(const int ch) {
+	return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '.');
+} 
+
+inline bool isAsmOperator(char ch) {
+	if (isalnum(ch))
+		return false;
+	// '.' left out as it is used to make up numbers
+	if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
+		ch == '(' || ch == ')' || ch == '=' ||
+		ch == '[' || ch == ']' || ch == '<' || 
+		ch == '>' || ch == ',' ||
+		ch == '.' || ch == '%' || ch == ':')
+		return true;
+	return false;
+}
+
+static void ColouriseAsmDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+                            Accessor &styler) {
+
+	WordList &cpuInstruction = *keywordlists[0];
+	WordList &mathInstruction = *keywordlists[1];
+	WordList &registers = *keywordlists[2];
+	WordList &directive = *keywordlists[3];
+	WordList &directiveOperand = *keywordlists[4];
+	
+	StyleContext sc(startPos, length, initStyle, styler);
+
+	for (; sc.More(); sc.Forward()) 
+	{
+		// Handle line continuation generically.
+		if (sc.ch == '\\') {
+			if (sc.Match("\\\n")) {
+				sc.Forward();
+				continue;
+			}
+			if (sc.Match("\\\r\n")) {
+				sc.Forward();
+				sc.Forward();
+				continue;
+			}
+		}
+
+		// Determine if the current state should terminate.
+		if (sc.state == SCE_ASM_OPERATOR) {
+			sc.SetState(SCE_ASM_DEFAULT);
+		}else if (sc.state == SCE_ASM_NUMBER) {
+			if (!IsAWordChar(sc.ch)) {
+				sc.SetState(SCE_ASM_DEFAULT);
+			}
+		} else if (sc.state == SCE_ASM_IDENTIFIER) {
+			if (!IsAWordChar(sc.ch) ) {
+			char s[100]; 
+			sc.GetCurrentLowered(s, sizeof(s));
+			
+			if (cpuInstruction.InList(s)) {
+				sc.ChangeState(SCE_ASM_CPUINSTRUCTION);
+			} else if (mathInstruction.InList(s)) {
+				sc.ChangeState(SCE_ASM_MATHINSTRUCTION);
+			} else if (registers.InList(s)) {
+				sc.ChangeState(SCE_ASM_REGISTER);
+			}  else if (directive.InList(s)) {
+				sc.ChangeState(SCE_ASM_DIRECTIVE);
+			} else if (directiveOperand.InList(s)) {
+				sc.ChangeState(SCE_ASM_DIRECTIVEOPERAND);
+			}
+			sc.SetState(SCE_ASM_DEFAULT);
+			}
+		}
+		else if (sc.state == SCE_ASM_COMMENT ) {
+			if (sc.atLineEnd) {
+				sc.SetState(SCE_ASM_DEFAULT);
+			}
+		} else if (sc.state == SCE_ASM_STRING) {
+			if (sc.ch == '\\') {
+				if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
+					sc.Forward();
+				}
+			} else if (sc.ch == '\"') {
+				sc.ForwardSetState(SCE_ASM_DEFAULT);
+			} else if (sc.atLineEnd) {
+				sc.ForwardSetState(SCE_ASM_DEFAULT);
+			}
+		} 
+		
+		// Determine if a new state should be entered.
+		else if (sc.state == SCE_ASM_DEFAULT) {
+			if (sc.ch == ';'){
+				sc.SetState(SCE_ASM_COMMENT);
+			} else if (isdigit(sc.ch) || (sc.ch == '.' && isdigit(sc.chNext))) {
+				sc.SetState(SCE_ASM_NUMBER);
+			} else if (IsAWordStart(sc.ch)) {
+				sc.SetState(SCE_ASM_IDENTIFIER);
+			} else if (sc.Match('\"')) {
+				sc.SetState(SCE_ASM_STRING);
+			}
+		} 
+		
+	}
+	sc.Complete();
+}
+
+LexerModule lmAsm(SCLEX_ASM, ColouriseAsmDoc, "Asm");
+