Moved lexers into lexers directory.

1 files changed, 180 insertions, 0 deletions

diff --git a/lexers/LexAsm.cxx b/lexers/LexAsm.cxx
new file mode 100644
index 000000000..17c938420
--- /dev/null
+++ b/lexers/LexAsm.cxx
@@ -0,0 +1,180 @@
+// Scintilla source code edit control
+/** @file LexAsm.cxx
+ ** Lexer for Assembler, just for the MASM syntax
+ ** Written by The Black Horus
+ ** Enhancements and NASM stuff by Kein-Hong Man, 2003-10
+ ** SCE_ASM_COMMENTBLOCK and SCE_ASM_CHARACTER are for future GNU as colouring
+ **/
+// Copyright 1998-2003 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 == '_' || ch == '?');
+}
+
+static inline bool IsAWordStart(const int ch) {
+	return (ch < 0x80) && (isalnum(ch) || ch == '_' || ch == '.' ||
+		ch == '%' || ch == '@' || ch == '$' || ch == '?');
+}
+
+static inline bool IsAsmOperator(const int ch) {
+	if ((ch < 0x80) && (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 == '|' || 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];
+	WordList &extInstruction = *keywordlists[5];
+
+	// Do not leak onto next line
+	if (initStyle == SCE_ASM_STRINGEOL)
+		initStyle = SCE_ASM_DEFAULT;
+
+	StyleContext sc(startPos, length, initStyle, styler);
+
+	for (; sc.More(); sc.Forward())
+	{
+
+		// Prevent SCE_ASM_STRINGEOL from leaking back to previous line
+		if (sc.atLineStart && (sc.state == SCE_ASM_STRING)) {
+			sc.SetState(SCE_ASM_STRING);
+		} else if (sc.atLineStart && (sc.state == SCE_ASM_CHARACTER)) {
+			sc.SetState(SCE_ASM_CHARACTER);
+		}
+
+		// Handle line continuation generically.
+		if (sc.ch == '\\') {
+			if (sc.chNext == '\n' || sc.chNext == '\r') {
+				sc.Forward();
+				if (sc.ch == '\r' && sc.chNext == '\n') {
+					sc.Forward();
+				}
+				continue;
+			}
+		}
+
+		// Determine if the current state should terminate.
+		if (sc.state == SCE_ASM_OPERATOR) {
+			if (!IsAsmOperator(sc.ch)) {
+			    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);
+				} else if (extInstruction.InList(s)) {
+					sc.ChangeState(SCE_ASM_EXTINSTRUCTION);
+				}
+				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.ChangeState(SCE_ASM_STRINGEOL);
+				sc.ForwardSetState(SCE_ASM_DEFAULT);
+			}
+		} else if (sc.state == SCE_ASM_CHARACTER) {
+			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.ChangeState(SCE_ASM_STRINGEOL);
+				sc.ForwardSetState(SCE_ASM_DEFAULT);
+			}
+		}
+
+		// Determine if a new state should be entered.
+		if (sc.state == SCE_ASM_DEFAULT) {
+			if (sc.ch == ';'){
+				sc.SetState(SCE_ASM_COMMENT);
+			} else if (isascii(sc.ch) && (isdigit(sc.ch) || (sc.ch == '.' && isascii(sc.chNext) && isdigit(sc.chNext)))) {
+				sc.SetState(SCE_ASM_NUMBER);
+			} else if (IsAWordStart(sc.ch)) {
+				sc.SetState(SCE_ASM_IDENTIFIER);
+			} else if (sc.ch == '\"') {
+				sc.SetState(SCE_ASM_STRING);
+			} else if (sc.ch == '\'') {
+				sc.SetState(SCE_ASM_CHARACTER);
+			} else if (IsAsmOperator(sc.ch)) {
+				sc.SetState(SCE_ASM_OPERATOR);
+			}
+		}
+
+	}
+	sc.Complete();
+}
+
+static const char * const asmWordListDesc[] = {
+	"CPU instructions",
+	"FPU instructions",
+	"Registers",
+	"Directives",
+	"Directive operands",
+	"Extended instructions",
+	0
+};
+
+LexerModule lmAsm(SCLEX_ASM, ColouriseAsmDoc, "asm", 0, asmWordListDesc);
+