// Scintilla source code edit control
// @file LexPowerPro.cxx
// PowerPro utility, written by Bruce Switzer, is available from http://powerpro.webeddie.com
// PowerPro lexer is written by Christopher Bean (cbean@cb-software.net)
//
// Lexer code heavily borrowed from: 
//	LexAU3.cxx by Jos van der Zande
//	LexCPP.cxx by Neil Hodgson
//	LexVB.cxx by Neil Hodgson
//
// Changes:
// 	2008-10-25 - Initial release
//	2008-10-26 - Changed how <name> is hilighted in  'function <name>' so that 
//				 local isFunction = "" and local functions = "" don't get falsely highlighted
//	2008-12-14 - Added bounds checking for szKeyword and szDo
//			   - Replaced SetOfCharacters with CharacterSet
//			   - Made sure that CharacterSet::Contains is passed only positive values
//			   - Made sure that the return value of Accessor::SafeGetCharAt is positive before 
//				 passsing to functions that require positive values like isspacechar()
//			   - Removed unused visibleChars processing from ColourisePowerProDoc()
//			   - Fixed bug with folding logic where line continuations didn't end where 
//				 they were supposed to
//			   - Moved all helper functions to the top of the file
//
// Copyright 1998-2005 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "Platform.h"
#include "PropSet.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"
#include "CharacterSet.h"

#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif

static inline bool IsStreamCommentStyle(int style) {
	return style == SCE_POWERPRO_COMMENTBLOCK;
}

static bool IsContinuationLine(unsigned int szLine, Accessor &styler)
{
	int nsPos = styler.LineStart(szLine);
	int nePos = styler.LineStart(szLine + 1) - 2;
	while (nsPos < nePos)
	{
		int stylech = styler.StyleAt(nsPos);
		if (!(stylech == SCE_POWERPRO_COMMENTBLOCK)) {
			char ch = styler.SafeGetCharAt(nePos);
			char chPrev = styler.SafeGetCharAt(nePos-1);
			char chPrevPrev = styler.SafeGetCharAt(nePos-2);
			if (ch > 0 && chPrev > 0 && chPrevPrev > 0 && !isspacechar(ch) && !isspacechar(chPrev) && !isspacechar(chPrevPrev) ) {
				if (chPrevPrev == ';' && chPrev == ';' && ch == '+')
					return true;
				else
					return false;
			}
		}
		nePos--; // skip to next char
	}
	return false;
}

// Routine to find first none space on the current line and return its Style
// needed for comment lines not starting on pos 1 
static int GetStyleFirstWord(unsigned int szLine, Accessor &styler)
{
	int nsPos = styler.LineStart(szLine);
	int nePos = styler.LineStart(szLine+1) - 1;
	char ch = styler.SafeGetCharAt(nsPos);
	
	while (ch > 0 && isspacechar(ch) && nsPos < nePos)
	{
		nsPos++; // skip to next char
		ch = styler.SafeGetCharAt(nsPos);

	}
	return styler.StyleAt(nsPos);
}

//returns true if there is a function to highlight
//used to highlight <name> in 'function <name>'
static bool HasFunction(Accessor &styler, unsigned int currentPos) {
	
	//check for presence of 'function '
	return 	(styler.SafeGetCharAt(currentPos) == ' ' 	
	&& tolower(styler.SafeGetCharAt(currentPos-1)) == 'n' 
	&& tolower(styler.SafeGetCharAt(currentPos-2)) == 'o'
	&& tolower(styler.SafeGetCharAt(currentPos-3)) == 'i'
	&& tolower(styler.SafeGetCharAt(currentPos-4)) == 't'
	&& tolower(styler.SafeGetCharAt(currentPos-5)) == 'c'
	&& tolower(styler.SafeGetCharAt(currentPos-6)) == 'n'
	&& tolower(styler.SafeGetCharAt(currentPos-7)) == 'u'
	&& tolower(styler.SafeGetCharAt(currentPos-8)) == 'f'
	//only allow 'function ' to appear at the beginning of a line
	&& (styler.SafeGetCharAt(currentPos-9) == '\n'   		
		|| styler.SafeGetCharAt(currentPos-9) == '\r'
		|| (styler.SafeGetCharAt(currentPos -9, '\0')) == '\0') //is the first line
	);
}

static void ColourisePowerProDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
                            Accessor &styler, bool caseSensitive) {

	WordList &keywords  = *keywordlists[0];
	WordList &keywords2 = *keywordlists[1];
	WordList &keywords3 = *keywordlists[2];
	WordList &keywords4 = *keywordlists[3];
	
	//define the character sets 
	CharacterSet setWordStart(CharacterSet::setAlpha, "_@", 0x80, true);
	CharacterSet setWord(CharacterSet::setAlphaNum, "._", 0x80, true);

	StyleContext sc(startPos, length, initStyle, styler);
	char s_save[100]; //for last line highlighting
	
	for (; sc.More(); sc.Forward()) {
			
		// **********************************************
		// save the total current word for eof processing
		char s[100];
		sc.GetCurrentLowered(s, sizeof(s));
		 
		if ((sc.ch > 0) && setWord.Contains(sc.ch)) 
		{
			strcpy(s_save,s);
			int tp = strlen(s_save);
			if (tp < 99) {
				s_save[tp] = static_cast<char>(tolower(sc.ch));
				s_save[tp+1] = '\0';
			}
		}
		// **********************************************
		//

		if (sc.atLineStart) {
			if (sc.state == SCE_POWERPRO_DOUBLEQUOTEDSTRING) {
				// Prevent SCE_POWERPRO_STRINGEOL from leaking back to previous line which
				// ends with a line continuation by locking in the state upto this position.
				sc.SetState(SCE_POWERPRO_DOUBLEQUOTEDSTRING);
			}
		}

		// Determine if the current state should terminate.
		switch (sc.state) {
			case SCE_POWERPRO_OPERATOR:
				sc.SetState(SCE_POWERPRO_DEFAULT);
				break;
			
			case SCE_POWERPRO_NUMBER:

				if (!IsADigit(sc.ch))
					sc.SetState(SCE_POWERPRO_DEFAULT);
				
				break;

			case SCE_POWERPRO_IDENTIFIER:
				//if ((sc.ch > 0) && !setWord.Contains(sc.ch) || (sc.ch == '.')) { // use this line if don't want to match keywords with . in them. ie: win.debug will match both win and debug so win debug will also be colorized
				if ((sc.ch > 0) && !setWord.Contains(sc.ch)){  // || (sc.ch == '.')) { // use this line if you want to match keywords with a . ie: win.debug will only match win.debug neither win nor debug will be colorized separately
					char s[1000];
					if (caseSensitive) {
						sc.GetCurrent(s, sizeof(s));
					} else {
						sc.GetCurrentLowered(s, sizeof(s));
					}
					if (keywords.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD);
					} else if (keywords2.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD2);
					} else if (keywords3.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD3);
					} else if (keywords4.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD4);
					}
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_LINECONTINUE:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				} else if (sc.Match('/', '*') || sc.Match('/', '/')) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_COMMENTBLOCK:
				if (sc.Match('*', '/')) {
					sc.Forward();
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_COMMENTLINE:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_DOUBLEQUOTEDSTRING:
				if (sc.atLineEnd) {
					sc.ChangeState(SCE_POWERPRO_STRINGEOL);
				} else if (sc.ch == '\\') {
					if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
						sc.Forward();
					}
				} else if (sc.ch == '\"') {
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_SINGLEQUOTEDSTRING:
				if (sc.atLineEnd) {
					sc.ChangeState(SCE_POWERPRO_STRINGEOL);
				} else if (sc.ch == '\\') {
					if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
						sc.Forward();
					}
				} else if (sc.ch == '\'') {
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_STRINGEOL:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_VERBATIM:
				if (sc.ch == '\"') {
					if (sc.chNext == '\"') {
						sc.Forward();
					} else {
						sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
					}
				}
				break;

			case SCE_POWERPRO_ALTQUOTE:
				if (sc.ch == '#') {
					if (sc.chNext == '#') {
						sc.Forward();
					} else {
						sc.ForwardSetState(SCE_POWERPRO_DEHTTP/1.1 200 OK
Connection: keep-alive
Connection: keep-alive
Content-Disposition: inline; filename="LexPowerPro.cxx"
Content-Disposition: inline; filename="LexPowerPro.cxx"
Content-Length: 19317
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Content-Security-Policy: default-src 'none'
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Content-Type: text/plain; charset=UTF-8
Date: Sun, 19 Oct 2025 02:04:13 UTC
ETag: "9320baf94389987b6fcbb44a323b4c7f1ef6f54b"
ETag: "9320baf94389987b6fcbb44a323b4c7f1ef6f54b"
Expires: Wed, 17 Oct 2035 02:04:13 GMT
Expires: Wed, 17 Oct 2035 02:04:13 GMT
Last-Modified: Sun, 19 Oct 2025 02:04:13 GMT
Last-Modified: Sun, 19 Oct 2025 02:04:13 GMT
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// Scintilla source code edit control
// @file LexPowerPro.cxx
// PowerPro utility, written by Bruce Switzer, is available from http://powerpro.webeddie.com
// PowerPro lexer is written by Christopher Bean (cbean@cb-software.net)
//
// Lexer code heavily borrowed from: 
//	LexAU3.cxx by Jos van der Zande
//	LexCPP.cxx by Neil Hodgson
//	LexVB.cxx by Neil Hodgson
//
// Changes:
// 	2008-10-25 - Initial release
//	2008-10-26 - Changed how <name> is hilighted in  'function <name>' so that 
//				 local isFunction = "" and local functions = "" don't get falsely highlighted
//	2008-12-14 - Added bounds checking for szKeyword and szDo
//			   - Replaced SetOfCharacters with CharacterSet
//			   - Made sure that CharacterSet::Contains is passed only positive values
//			   - Made sure that the return value of Accessor::SafeGetCharAt is positive before 
//				 passsing to functions that require positive values like isspacechar()
//			   - Removed unused visibleChars processing from ColourisePowerProDoc()
//			   - Fixed bug with folding logic where line continuations didn't end where 
//				 they were supposed to
//			   - Moved all helper functions to the top of the file
//
// Copyright 1998-2005 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "Platform.h"
#include "PropSet.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"
#include "CharacterSet.h"

#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif

static inline bool IsStreamCommentStyle(int style) {
	return style == SCE_POWERPRO_COMMENTBLOCK;
}

static bool IsContinuationLine(unsigned int szLine, Accessor &styler)
{
	int nsPos = styler.LineStart(szLine);
	int nePos = styler.LineStart(szLine + 1) - 2;
	while (nsPos < nePos)
	{
		int stylech = styler.StyleAt(nsPos);
		if (!(stylech == SCE_POWERPRO_COMMENTBLOCK)) {
			char ch = styler.SafeGetCharAt(nePos);
			char chPrev = styler.SafeGetCharAt(nePos-1);
			char chPrevPrev = styler.SafeGetCharAt(nePos-2);
			if (ch > 0 && chPrev > 0 && chPrevPrev > 0 && !isspacechar(ch) && !isspacechar(chPrev) && !isspacechar(chPrevPrev) ) {
				if (chPrevPrev == ';' && chPrev == ';' && ch == '+')
					return true;
				else
					return false;
			}
		}
		nePos--; // skip to next char
	}
	return false;
}

// Routine to find first none space on the current line and return its Style
// needed for comment lines not starting on pos 1 
static int GetStyleFirstWord(unsigned int szLine, Accessor &styler)
{
	int nsPos = styler.LineStart(szLine);
	int nePos = styler.LineStart(szLine+1) - 1;
	char ch = styler.SafeGetCharAt(nsPos);
	
	while (ch > 0 && isspacechar(ch) && nsPos < nePos)
	{
		nsPos++; // skip to next char
		ch = styler.SafeGetCharAt(nsPos);

	}
	return styler.StyleAt(nsPos);
}

//returns true if there is a function to highlight
//used to highlight <name> in 'function <name>'
static bool HasFunction(Accessor &styler, unsigned int currentPos) {
	
	//check for presence of 'function '
	return 	(styler.SafeGetCharAt(currentPos) == ' ' 	
	&& tolower(styler.SafeGetCharAt(currentPos-1)) == 'n' 
	&& tolower(styler.SafeGetCharAt(currentPos-2)) == 'o'
	&& tolower(styler.SafeGetCharAt(currentPos-3)) == 'i'
	&& tolower(styler.SafeGetCharAt(currentPos-4)) == 't'
	&& tolower(styler.SafeGetCharAt(currentPos-5)) == 'c'
	&& tolower(styler.SafeGetCharAt(currentPos-6)) == 'n'
	&& tolower(styler.SafeGetCharAt(currentPos-7)) == 'u'
	&& tolower(styler.SafeGetCharAt(currentPos-8)) == 'f'
	//only allow 'function ' to appear at the beginning of a line
	&& (styler.SafeGetCharAt(currentPos-9) == '\n'   		
		|| styler.SafeGetCharAt(currentPos-9) == '\r'
		|| (styler.SafeGetCharAt(currentPos -9, '\0')) == '\0') //is the first line
	);
}

static void ColourisePowerProDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
                            Accessor &styler, bool caseSensitive) {

	WordList &keywords  = *keywordlists[0];
	WordList &keywords2 = *keywordlists[1];
	WordList &keywords3 = *keywordlists[2];
	WordList &keywords4 = *keywordlists[3];
	
	//define the character sets 
	CharacterSet setWordStart(CharacterSet::setAlpha, "_@", 0x80, true);
	CharacterSet setWord(CharacterSet::setAlphaNum, "._", 0x80, true);

	StyleContext sc(startPos, length, initStyle, styler);
	char s_save[100]; //for last line highlighting
	
	for (; sc.More(); sc.Forward()) {
			
		// **********************************************
		// save the total current word for eof processing
		char s[100];
		sc.GetCurrentLowered(s, sizeof(s));
		 
		if ((sc.ch > 0) && setWord.Contains(sc.ch)) 
		{
			strcpy(s_save,s);
			int tp = strlen(s_save);
			if (tp < 99) {
				s_save[tp] = static_cast<char>(tolower(sc.ch));
				s_save[tp+1] = '\0';
			}
		}
		// **********************************************
		//

		if (sc.atLineStart) {
			if (sc.state == SCE_POWERPRO_DOUBLEQUOTEDSTRING) {
				// Prevent SCE_POWERPRO_STRINGEOL from leaking back to previous line which
				// ends with a line continuation by locking in the state upto this position.
				sc.SetState(SCE_POWERPRO_DOUBLEQUOTEDSTRING);
			}
		}

		// Determine if the current state should terminate.
		switch (sc.state) {
			case SCE_POWERPRO_OPERATOR:
				sc.SetState(SCE_POWERPRO_DEFAULT);
				break;
			
			case SCE_POWERPRO_NUMBER:

				if (!IsADigit(sc.ch))
					sc.SetState(SCE_POWERPRO_DEFAULT);
				
				break;

			case SCE_POWERPRO_IDENTIFIER:
				//if ((sc.ch > 0) && !setWord.Contains(sc.ch) || (sc.ch == '.')) { // use this line if don't want to match keywords with . in them. ie: win.debug will match both win and debug so win debug will also be colorized
				if ((sc.ch > 0) && !setWord.Contains(sc.ch)){  // || (sc.ch == '.')) { // use this line if you want to match keywords with a . ie: win.debug will only match win.debug neither win nor debug will be colorized separately
					char s[1000];
					if (caseSensitive) {
						sc.GetCurrent(s, sizeof(s));
					} else {
						sc.GetCurrentLowered(s, sizeof(s));
					}
					if (keywords.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD);
					} else if (keywords2.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD2);
					} else if (keywords3.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD3);
					} else if (keywords4.InList(s)) {
						sc.ChangeState(SCE_POWERPRO_WORD4);
					}
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_LINECONTINUE:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				} else if (sc.Match('/', '*') || sc.Match('/', '/')) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_COMMENTBLOCK:
				if (sc.Match('*', '/')) {
					sc.Forward();
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_COMMENTLINE:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_DOUBLEQUOTEDSTRING:
				if (sc.atLineEnd) {
					sc.ChangeState(SCE_POWERPRO_STRINGEOL);
				} else if (sc.ch == '\\') {
					if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
						sc.Forward();
					}
				} else if (sc.ch == '\"') {
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_SINGLEQUOTEDSTRING:
				if (sc.atLineEnd) {
					sc.ChangeState(SCE_POWERPRO_STRINGEOL);
				} else if (sc.ch == '\\') {
					if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
						sc.Forward();
					}
				} else if (sc.ch == '\'') {
					sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_STRINGEOL:
				if (sc.atLineStart) {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
				break;

			case SCE_POWERPRO_VERBATIM:
				if (sc.ch == '\"') {
					if (sc.chNext == '\"') {
						sc.Forward();
					} else {
						sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
					}
				}
				break;

			case SCE_POWERPRO_ALTQUOTE:
				if (sc.ch == '#') {
					if (sc.chNext == '#') {
						sc.Forward();
					} else {
						sc.ForwardSetState(SCE_POWERPRO_DEFAULT);
					}
				}
				break;
				
			case SCE_POWERPRO_FUNCTION:
				if (sc.ch == '\r' || sc.ch == '\n' || sc.ch == ' ' || sc.ch == '(') {
					sc.SetState(SCE_POWERPRO_DEFAULT);
				}
			break;
		}

		// Determine if a new state should be entered.
		if (sc.state == SCE_POWERPRO_DEFAULT) {
			if (sc.Match('?', '\"')) {
				sc.SetState(SCE_POWERPRO_VERBATIM);
				sc.Forward();
			} else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
				sc.SetState(SCE_POWERPRO_NUMBER);
			}else if (sc.Match('?','#')) {
				if (sc.ch == '?' && sc.chNext == '#') {
					sc.SetState(SCE_POWERPRO_ALTQUOTE);
					sc.Forward();
				}
			} else if (HasFunction(styler, sc.currentPos)) {	//highlight <name> in 'function <name>'
				sc.SetState(SCE_POWERPRO_FUNCTION); 
			} else if (sc.ch == '@' && sc.atLineStart) { 		//alternate function definition [label]
				sc.SetState(SCE_POWERPRO_FUNCTION);
			} else if ((sc.ch > 0) && (setWordStart.Contains(sc.ch) || (sc.ch == '?'))) {
				sc.SetState(SCE_POWERPRO_IDENTIFIER);
			} else if (sc.Match(";;+")) { 
				sc.SetState(SCE_POWERPRO_LINECONTINUE);
			} else if (sc.Match('/', '*')) {
				sc.SetState(SCE_POWERPRO_COMMENTBLOCK);
				sc.Forward();	// Eat the * so it isn't used for the end of the comment
			} else if (sc.Match('/', '/')) {
				sc.SetState(SCE_POWERPRO_COMMENTLINE);
			} else if (sc.atLineStart && sc.ch == ';') {		//legacy comment that can only appear at the beginning of a line
				sc.SetState(SCE_POWERPRO_COMMENTLINE);
			} else if (sc.Match(";;")) {
				sc.SetState(SCE_POWERPRO_COMMENTLINE);
			} else if (sc.ch == '\"') {
				sc.SetState(SCE_POWERPRO_DOUBLEQUOTEDSTRING);
			} else if (sc.ch == '\'') {
				sc.SetState(SCE_POWERPRO_SINGLEQUOTEDSTRING);
			} else if (isoperator(static_cast<char>(sc.ch))) {
				sc.SetState(SCE_POWERPRO_OPERATOR);
			}
		}
	}

	//*************************************
	// Colourize the last word correctly 
	//*************************************
	if (sc.state == SCE_POWERPRO_IDENTIFIER)
	{
		if (keywords.InList(s_save)) {
			sc.ChangeState(SCE_POWERPRO_WORD);
			sc.SetState(SCE_POWERPRO_DEFAULT);