[wxWidgets.git] / src / stc / scintilla / lexers / LexOpal.cxx

// Scintilla source code edit control
/** @file LexOpal.cxx
 ** Lexer for OPAL (functional language similar to Haskell)
 ** Written by Sebastian Pipping <webmaster@hartwork.org>
 **/

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

#include "ILexer.h"
#include "Scintilla.h"
#include "SciLexer.h"

#include "WordList.h"
#include "LexAccessor.h"
#include "Accessor.h"
#include "StyleContext.h"
#include "CharacterSet.h"
#include "LexerModule.h"

#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif

inline static void getRange( unsigned int start, unsigned int end, Accessor & styler, char * s, unsigned int len )
{
	unsigned int i = 0;
	while( ( i < end - start + 1 ) && ( i < len - 1 ) )
	{
		s[i] = static_cast<char>( styler[ start + i ] );
		i++;
	}
	s[ i ] = '\0';
}

inline bool HandleString( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
{
	char ch;

	// Wait for string to close
	bool even_backslash_count = true; // Without gaps in between
	cur++; // Skip initial quote
	for( ; ; )
	{
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_STRING );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( ( ch == '\015' ) || ( ch == '\012' ) ) // Deny multi-line strings
		{
			styler.ColourTo( cur - 1, SCE_OPAL_STRING );
			styler.StartSegment( cur );
			return true;
		}
		else
		{
			if( even_backslash_count )
			{
				if( ch == '"' )
				{
					styler.ColourTo( cur, SCE_OPAL_STRING );
					cur++;
					if( cur >= one_too_much )
					{
						return false; // STOP
					}
					else
					{
						styler.StartSegment( cur );
						return true;
					}
				}
				else if( ch == '\\' )
				{
					even_backslash_count = false;
				}
			}
			else
			{
				even_backslash_count = true;
			}
		}

		cur++;
	}
}

inline bool HandleCommentBlock( unsigned int & cur, unsigned int one_too_much, Accessor & styler, bool could_fail )
{
	char ch;

	if( could_fail )
	{
		cur++;
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( ch != '*' )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			styler.StartSegment( cur );
			return true;
		}
	}

	// Wait for comment close
	cur++;
	bool star_found = false;
	for( ; ; )
	{
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_BLOCK );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( star_found )
		{
			if( ch == '/' )
			{
				styler.ColourTo( cur, SCE_OPAL_COMMENT_BLOCK );
				cur++;
				if( cur >= one_too_much )
				{
					return false; // STOP
				}
				else
				{
					styler.StartSegment( cur );
					return true;
				}
			}
			else if( ch != '*' )
			{
				star_found = false;
			}
		}
		else if( ch == '*' )
		{
			star_found = true;
		}
		cur++;
	}
}

inline bool HandleCommentLine( unsigned int & cur, unsigned int one_too_much, Accessor & styler, bool could_fail )
{
	char ch;

	if( could_fail )
	{
		cur++;
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( ch != '-' )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			styler.StartSegment( cur );
			return true;
		}

		cur++;
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( ( ch != ' ' ) && ( ch != '\t' ) )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
			styler.StartSegment( cur );
			return true;
		}
	}

	// Wait for end of line
	bool fifteen_found = false;

	for( ; ; )
	{
		cur++;

		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( fifteen_found )
		{
/*
			if( ch == '\012' )
			{
				// One newline on Windows (015, 012)
			}
			else
			{
				// One newline on MAC (015) and another char
			}
*/
			cur--;
			styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
			styler.StartSegment( cur );
			return true;
		}
		else
		{
			if( ch == '\015' )
			{
				fifteen_found = true;
			}
			else if( ch == '\012' )
			{
				// One newline on Linux (012)
				styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
				styler.StartSegment( cur );
				return true;
			}
		}
	}
}

inline bool HandlePar( unsigned int & cur, Accessor & styler )
{
	styler.ColourTo( cur, SCE_OPAL_PAR );

	cur++;

	styler.StartSegment( cur );
	return true;
}

inline bool HandleSpace( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
{
	char ch;

	cur++;
	for( ; ; )
	{
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_SPACE );
			return false;
		}

		ch = styler.SafeGetCharAt( cur );
		switch( ch )
		{
		case ' ':
		case '\t':
		case '\015':
		case '\012':
			cur++;
			break;

		default:
			styler.ColourTo( cur - 1, SCE_OPAL_SPACE );
			styler.StartSegment( cur );
			return true;
		}
	}
}

inline bool HandleInteger( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
{
	char ch;

	for( ; ; )
	{
		cur++;
		if( cur >= one_too_much )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_INTEGER );
			return false; // STOP
		}

		ch = styler.SafeGetCharAt( cur );
		if( !( isascii( ch ) && isdigit( ch ) ) )
		{
			styler.ColourTo( cur - 1, SCE_OPAL_INTEGER );
			styler.StartSegment( cur );
			return true;
		}
	}
}

inline bool HandleWord( unsigned int & cur, unsigned int one_too_much, Accessor & styler, WordList * keywordlists[] )
{
	char ch;
	const unsigned int beg = cur;

	cur++;
	for( ; ; )
	{
		ch = styler.SafeGetCharAt( cur );
		if( ( ch != '_' ) && ( ch != '-' ) &&
			!( isascii( ch ) && ( islower( ch ) || isupper( ch ) || isdigit( ch ) ) ) ) break;

		cur++;
		if( cur >= one_too_much )
		{
			break;
		}
	}

	const int ide_len = cur - beg + 1;
	char * ide = new char[ ide_len ];
	getRange( beg, cur, styler, ide, ide_len );

	WordList & keywords    = *keywordlists[ 0 ];
	WordList & classwords  = *keywordlists[ 1 ];

	if( keywords.InList( ide ) ) // Keyword
	{
		delete [] ide;

		styler.ColourTo( cur - 1, SCE_OPAL_KEYWORD );
		if( cur >= one_too_much )
		{
			return false; // STOP
		}
		else
		{
			styler.StartSegment( cur );
			return true;
		}
	}
	else if( classwords.InList( ide ) ) // Sort
	{
		delete [] ide;

		styler.ColourTo( cur - 1, SCE_OPAL_SORT );
		if( cur >= one_too_much )
		{
			return false; // STOP
		}
		else
		{
			styler.StartSegment( cur );
			return true;
		}
	}
	else if( !strcmp( ide, "true" ) || !strcmp( ide, "false" ) ) // Bool const
	{
		delete [] ide;

		styler.ColourTo( cur - 1, SCE_OPAL_BOOL_CONST );
		if( cur >= one_too_much )
		{
			return false; // STOP
		}
		else
		{
			styler.StartSegment( cur );
			return true;
		}
	}
	else // Unknown keyword
	{
		delete [] ide;

		styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
		if( cur >= one_too_much )
		{
			return false; // STOP
		}
		else
		{
			styler.StartSegment( cur );
			return true;
		}
	}

}

inline bool HandleSkip( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
{
	cur++;
	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	if( cur >= one_too_much )
	{
		return false; // STOP
	}
	else
	{
		styler.StartSegment( cur );
		return true;
	}
}

static void ColouriseOpalDoc( unsigned int startPos, int length, int initStyle, WordList *keywordlists[], Accessor & styler )
{
	styler.StartAt( startPos );
	styler.StartSegment( startPos );

	unsigned int & cur = startPos;
	const unsigned int one_too_much = startPos + length;

	int state = initStyle;

	for( ; ; )
	{
		switch( state )
		{
		case SCE_OPAL_KEYWORD:
		case SCE_OPAL_SORT:
			if( !HandleWord( cur, one_too_much, styler, keywordlists ) ) return;
			state = SCE_OPAL_DEFAULT;
			break;

		case SCE_OPAL_INTEGER:
			if( !HandleInteger( cur, one_too_much, styler ) ) return;
			state = SCE_OPAL_DEFAULT;
			break;

		case SCE_OPAL_COMMENT_BLOCK:
			if( !HandleCommentBlock( cur, one_too_much, styler, false ) ) return;
			state = SCE_OPAL_DEFAULT;
			break;

		case SCE_OPAL_COMMENT_LINE:
			if( !HandleCommentLine( cur, one_too_much, styler, false ) ) return;
			state = SCE_OPAL_DEFAULT;
			break;

		case SCE_OPAL_STRING:
			if( !HandleString( cur, one_too_much, styler ) ) return;
			state = SCE_OPAL_DEFAULT;
			break;

		default: // SCE_OPAL_DEFAULT:
			{
				char ch = styler.SafeGetCharAt( cur );

				switch( ch )
				{
				// String
				case '"':
					if( !HandleString( cur, one_too_much, styler ) ) return;
					break;

				// Comment block
				case '/':
					if( !HandleCommentBlock( cur, one_too_much, styler, true ) ) return;
					break;

				// Comment line
				case '-':
					if( !HandleCommentLine( cur, one_too_much, styler, true ) ) return;
					break;

				// Par
				case '(':
				case ')':
				case '[':
				case ']':
				case '{':
				case '}':
					if( !HandlePar( cur, styler ) ) return;
					break;

				// Whitespace
				case ' ':
				case '\t':
				case '\015':
				case '\012':
					if( !HandleSpace( cur, one_too_much, styler ) ) return;
					break;

				default:
					{
						// Integer
						if( isascii( ch ) && isdigit( ch ) )
						{
							if( !HandleInteger( cur, one_too_much, styler ) ) return;
						}

						// Keyword
						else if( isascii( ch ) && ( islower( ch ) || isupper( ch ) ) )
						{
							if( !HandleWord( cur, one_too_much, styler, keywordlists ) ) return;

						}

						// Skip
						else
						{
							if( !HandleSkip( cur, one_too_much, styler ) ) return;
						}
					}
				}

				break;
			}
		}
	}
}

static const char * const opalWordListDesc[] = {
	"Keywords",
	"Sorts",
	0
};

LexerModule lmOpal(SCLEX_OPAL, ColouriseOpalDoc, "opal", NULL, opalWordListDesc);
Commit	Line	Data
b8193d80 RD	1	// Scintilla source code edit control
	2	/** @file LexOpal.cxx
	3	** Lexer for OPAL (functional language similar to Haskell)
	4	** Written by Sebastian Pipping <webmaster@hartwork.org>
	5	**/
	6
	7	#include <stdlib.h>
	8	#include <string.h>
b8193d80 RD	9	#include <stdio.h>
b8193d80 RD	10	#include <stdarg.h>
1dcf666d RD	11	#include <assert.h>
1dcf666d RD	12	#include <ctype.h>
b8193d80	13
1dcf666d	14	#include "ILexer.h"
b8193d80 RD	15	#include "Scintilla.h"
b8193d80 RD	16	#include "SciLexer.h"
1dcf666d RD	17
	18	#include "WordList.h"
	19	#include "LexAccessor.h"
	20	#include "Accessor.h"
b8193d80	21	#include "StyleContext.h"
1dcf666d RD	22	#include "CharacterSet.h"
1dcf666d RD	23	#include "LexerModule.h"
b8193d80	24
7e0c58e9 RD	25	#ifdef SCI_NAMESPACE
	26	using namespace Scintilla;
	27	#endif
	28
b8193d80 RD	29	inline static void getRange( unsigned int start, unsigned int end, Accessor & styler, char * s, unsigned int len )
	30	{
	31	unsigned int i = 0;
	32	while( ( i < end - start + 1 ) && ( i < len - 1 ) )
	33	{
	34	s[i] = static_cast<char>( styler[ start + i ] );
	35	i++;
	36	}
	37	s[ i ] = '\0';
	38	}
	39
	40	inline bool HandleString( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
	41	{
	42	char ch;
	43
	44	// Wait for string to close
	45	bool even_backslash_count = true; // Without gaps in between
	46	cur++; // Skip initial quote
	47	for( ; ; )
	48	{
	49	if( cur >= one_too_much )
	50	{
	51	styler.ColourTo( cur - 1, SCE_OPAL_STRING );
	52	return false; // STOP
	53	}
	54
	55	ch = styler.SafeGetCharAt( cur );
	56	if( ( ch == '\015' ) \|\| ( ch == '\012' ) ) // Deny multi-line strings
	57	{
	58	styler.ColourTo( cur - 1, SCE_OPAL_STRING );
	59	styler.StartSegment( cur );
	60	return true;
	61	}
	62	else
	63	{
	64	if( even_backslash_count )
	65	{
	66	if( ch == '"' )
	67	{
	68	styler.ColourTo( cur, SCE_OPAL_STRING );
	69	cur++;
	70	if( cur >= one_too_much )
	71	{
	72	return false; // STOP
	73	}
	74	else
	75	{
	76	styler.StartSegment( cur );
	77	return true;
	78	}
	79	}
	80	else if( ch == '\\' )
	81	{
	82	even_backslash_count = false;
	83	}
	84	}
	85	else
	86	{
	87	even_backslash_count = true;
	88	}
	89	}
	90
	91	cur++;
	92	}
93	}
94
95	inline bool HandleCommentBlock( unsigned int & cur, unsigned int one_too_much, Accessor & styler, bool could_fail )
96	{
97	char ch;
1dcf666d	98
b8193d80 RD	99	if( could_fail )
	100	{
	101	cur++;
	102	if( cur >= one_too_much )
	103	{
	104	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	105	return false; // STOP
	106	}
1dcf666d	107
b8193d80 RD	108	ch = styler.SafeGetCharAt( cur );
	109	if( ch != '*' )
	110	{
	111	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	112	styler.StartSegment( cur );
	113	return true;
	114	}
	115	}
1dcf666d	116
b8193d80 RD	117	// Wait for comment close
	118	cur++;
	119	bool star_found = false;
	120	for( ; ; )
	121	{
	122	if( cur >= one_too_much )
	123	{
	124	styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_BLOCK );
	125	return false; // STOP
	126	}
1dcf666d	127
b8193d80 RD	128	ch = styler.SafeGetCharAt( cur );
	129	if( star_found )
	130	{
	131	if( ch == '/' )
	132	{
	133	styler.ColourTo( cur, SCE_OPAL_COMMENT_BLOCK );
	134	cur++;
	135	if( cur >= one_too_much )
	136	{
	137	return false; // STOP
	138	}
	139	else
	140	{
	141	styler.StartSegment( cur );
	142	return true;
	143	}
	144	}
	145	else if( ch != '*' )
	146	{
	147	star_found = false;
	148	}
	149	}
	150	else if( ch == '*' )
	151	{
	152	star_found = true;
	153	}
	154	cur++;
	155	}
	156	}
	157
	158	inline bool HandleCommentLine( unsigned int & cur, unsigned int one_too_much, Accessor & styler, bool could_fail )
	159	{
	160	char ch;
1dcf666d	161
b8193d80 RD	162	if( could_fail )
	163	{
	164	cur++;
	165	if( cur >= one_too_much )
	166	{
	167	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	168	return false; // STOP
	169	}
1dcf666d	170
b8193d80 RD	171	ch = styler.SafeGetCharAt( cur );
	172	if( ch != '-' )
	173	{
	174	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	175	styler.StartSegment( cur );
	176	return true;
	177	}
	178
	179	cur++;
	180	if( cur >= one_too_much )
	181	{
	182	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	183	return false; // STOP
	184	}
1dcf666d	185
b8193d80 RD	186	ch = styler.SafeGetCharAt( cur );
	187	if( ( ch != ' ' ) && ( ch != '\t' ) )
	188	{
	189	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	190	styler.StartSegment( cur );
	191	return true;
	192	}
	193	}
	194
	195	// Wait for end of line
	196	bool fifteen_found = false;
	197
	198	for( ; ; )
	199	{
	200	cur++;
	201
	202	if( cur >= one_too_much )
	203	{
	204	styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
	205	return false; // STOP
	206	}
	207
	208	ch = styler.SafeGetCharAt( cur );
	209	if( fifteen_found )
	210	{
	211	/*
	212	if( ch == '\012' )
	213	{
	214	// One newline on Windows (015, 012)
	215	}
	216	else
	217	{
	218	// One newline on MAC (015) and another char
	219	}
	220	*/
	221	cur--;
	222	styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
	223	styler.StartSegment( cur );
	224	return true;
	225	}
	226	else
	227	{
	228	if( ch == '\015' )
	229	{
1dcf666d	230	fifteen_found = true;
b8193d80 RD	231	}
	232	else if( ch == '\012' )
	233	{
	234	// One newline on Linux (012)
	235	styler.ColourTo( cur - 1, SCE_OPAL_COMMENT_LINE );
	236	styler.StartSegment( cur );
	237	return true;
	238	}
	239	}
	240	}
	241	}
	242
	243	inline bool HandlePar( unsigned int & cur, Accessor & styler )
	244	{
	245	styler.ColourTo( cur, SCE_OPAL_PAR );
	246
	247	cur++;
	248
	249	styler.StartSegment( cur );
	250	return true;
	251	}
	252
	253	inline bool HandleSpace( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
	254	{
	255	char ch;
	256
	257	cur++;
	258	for( ; ; )
	259	{
	260	if( cur >= one_too_much )
	261	{
	262	styler.ColourTo( cur - 1, SCE_OPAL_SPACE );
	263	return false;
	264	}
1dcf666d	265
b8193d80 RD	266	ch = styler.SafeGetCharAt( cur );
	267	switch( ch )
	268	{
	269	case ' ':
	270	case '\t':
	271	case '\015':
	272	case '\012':
	273	cur++;
	274	break;
1dcf666d	275
b8193d80 RD	276	default:
	277	styler.ColourTo( cur - 1, SCE_OPAL_SPACE );
	278	styler.StartSegment( cur );
	279	return true;
	280	}
	281	}
	282	}
	283
	284	inline bool HandleInteger( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
	285	{
	286	char ch;
	287
	288	for( ; ; )
	289	{
	290	cur++;
	291	if( cur >= one_too_much )
	292	{
	293	styler.ColourTo( cur - 1, SCE_OPAL_INTEGER );
	294	return false; // STOP
	295	}
	296
	297	ch = styler.SafeGetCharAt( cur );
1dcf666d	298	if( !( isascii( ch ) && isdigit( ch ) ) )
b8193d80 RD	299	{
	300	styler.ColourTo( cur - 1, SCE_OPAL_INTEGER );
	301	styler.StartSegment( cur );
	302	return true;
	303	}
	304	}
	305	}
	306
	307	inline bool HandleWord( unsigned int & cur, unsigned int one_too_much, Accessor & styler, WordList * keywordlists[] )
	308	{
	309	char ch;
	310	const unsigned int beg = cur;
	311
	312	cur++;
	313	for( ; ; )
	314	{
	315	ch = styler.SafeGetCharAt( cur );
	316	if( ( ch != '_' ) && ( ch != '-' ) &&
1dcf666d	317	!( isascii( ch ) && ( islower( ch ) \|\| isupper( ch ) \|\| isdigit( ch ) ) ) ) break;
b8193d80 RD	318
b8193d80 RD	319	cur++;
1dcf666d	320	if( cur >= one_too_much )
b8193d80 RD	321	{
	322	break;
	323	}
	324	}
	325
	326	const int ide_len = cur - beg + 1;
	327	char * ide = new char[ ide_len ];
	328	getRange( beg, cur, styler, ide, ide_len );
1dcf666d	329
b8193d80 RD	330	WordList & keywords = *keywordlists[ 0 ];
	331	WordList & classwords = *keywordlists[ 1 ];
	332
	333	if( keywords.InList( ide ) ) // Keyword
	334	{
	335	delete [] ide;
	336
	337	styler.ColourTo( cur - 1, SCE_OPAL_KEYWORD );
	338	if( cur >= one_too_much )
	339	{
	340	return false; // STOP
	341	}
	342	else
	343	{
1dcf666d RD	344	styler.StartSegment( cur );
1dcf666d RD	345	return true;
b8193d80 RD	346	}
	347	}
	348	else if( classwords.InList( ide ) ) // Sort
	349	{
	350	delete [] ide;
	351
	352	styler.ColourTo( cur - 1, SCE_OPAL_SORT );
	353	if( cur >= one_too_much )
	354	{
	355	return false; // STOP
	356	}
	357	else
	358	{
1dcf666d RD	359	styler.StartSegment( cur );
1dcf666d RD	360	return true;
b8193d80 RD	361	}
	362	}
	363	else if( !strcmp( ide, "true" ) \|\| !strcmp( ide, "false" ) ) // Bool const
	364	{
	365	delete [] ide;
	366
	367	styler.ColourTo( cur - 1, SCE_OPAL_BOOL_CONST );
	368	if( cur >= one_too_much )
	369	{
	370	return false; // STOP
	371	}
	372	else
	373	{
1dcf666d RD	374	styler.StartSegment( cur );
1dcf666d RD	375	return true;
b8193d80 RD	376	}
	377	}
	378	else // Unknown keyword
	379	{
	380	delete [] ide;
	381
	382	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	383	if( cur >= one_too_much )
	384	{
	385	return false; // STOP
	386	}
	387	else
	388	{
	389	styler.StartSegment( cur );
1dcf666d	390	return true;
b8193d80 RD	391	}
	392	}
	393
	394	}
	395
	396	inline bool HandleSkip( unsigned int & cur, unsigned int one_too_much, Accessor & styler )
	397	{
	398	cur++;
	399	styler.ColourTo( cur - 1, SCE_OPAL_DEFAULT );
	400	if( cur >= one_too_much )
	401	{
	402	return false; // STOP
	403	}
	404	else
	405	{
1dcf666d	406	styler.StartSegment( cur );
b8193d80 RD	407	return true;
	408	}
	409	}
	410
	411	static void ColouriseOpalDoc( unsigned int startPos, int length, int initStyle, WordList *keywordlists[], Accessor & styler )
	412	{
	413	styler.StartAt( startPos );
	414	styler.StartSegment( startPos );
	415
	416	unsigned int & cur = startPos;
	417	const unsigned int one_too_much = startPos + length;
	418
	419	int state = initStyle;
	420
	421	for( ; ; )
	422	{
	423	switch( state )
	424	{
	425	case SCE_OPAL_KEYWORD:
	426	case SCE_OPAL_SORT:
	427	if( !HandleWord( cur, one_too_much, styler, keywordlists ) ) return;
	428	state = SCE_OPAL_DEFAULT;
	429	break;
	430
	431	case SCE_OPAL_INTEGER:
	432	if( !HandleInteger( cur, one_too_much, styler ) ) return;
	433	state = SCE_OPAL_DEFAULT;
	434	break;
	435
	436	case SCE_OPAL_COMMENT_BLOCK:
	437	if( !HandleCommentBlock( cur, one_too_much, styler, false ) ) return;
	438	state = SCE_OPAL_DEFAULT;
	439	break;
	440
	441	case SCE_OPAL_COMMENT_LINE:
	442	if( !HandleCommentLine( cur, one_too_much, styler, false ) ) return;
	443	state = SCE_OPAL_DEFAULT;
	444	break;
	445
	446	case SCE_OPAL_STRING:
	447	if( !HandleString( cur, one_too_much, styler ) ) return;
	448	state = SCE_OPAL_DEFAULT;
	449	break;
1dcf666d	450
b8193d80 RD	451	default: // SCE_OPAL_DEFAULT:
	452	{
	453	char ch = styler.SafeGetCharAt( cur );
1dcf666d	454
b8193d80 RD	455	switch( ch )
	456	{
	457	// String
	458	case '"':
	459	if( !HandleString( cur, one_too_much, styler ) ) return;
	460	break;
	461
	462	// Comment block
	463	case '/':
	464	if( !HandleCommentBlock( cur, one_too_much, styler, true ) ) return;
	465	break;
	466
	467	// Comment line
	468	case '-':
	469	if( !HandleCommentLine( cur, one_too_much, styler, true ) ) return;
	470	break;
	471
	472	// Par
	473	case '(':
	474	case ')':
	475	case '[':
	476	case ']':
	477	case '{':
	478	case '}':
	479	if( !HandlePar( cur, styler ) ) return;
	480	break;
	481
	482	// Whitespace
	483	case ' ':
	484	case '\t':
	485	case '\015':
	486	case '\012':
	487	if( !HandleSpace( cur, one_too_much, styler ) ) return;
	488	break;
1dcf666d	489
b8193d80 RD	490	default:
	491	{
	492	// Integer
1dcf666d	493	if( isascii( ch ) && isdigit( ch ) )
b8193d80 RD	494	{
	495	if( !HandleInteger( cur, one_too_much, styler ) ) return;
	496	}
	497
	498	// Keyword
1dcf666d	499	else if( isascii( ch ) && ( islower( ch ) \|\| isupper( ch ) ) )
b8193d80 RD	500	{
b8193d80 RD	501	if( !HandleWord( cur, one_too_much, styler, keywordlists ) ) return;
1dcf666d	502
b8193d80 RD	503	}
	504
	505	// Skip
	506	else
	507	{
	508	if( !HandleSkip( cur, one_too_much, styler ) ) return;
	509	}
	510	}
	511	}
	512
	513	break;
	514	}
	515	}
	516	}
	517	}
	518
	519	static const char * const opalWordListDesc[] = {
	520	"Keywords",
	521	"Sorts",
	522	0
	523	};
	524
	525	LexerModule lmOpal(SCLEX_OPAL, ColouriseOpalDoc, "opal", NULL, opalWordListDesc);