// Scintilla source code edit control
/** @file LexOthers.cxx
 ** Lexers for batch files, diff results, properties files, make files and error lists.
 ** Also lexer for LaTeX documents.
 **/
// Copyright 1998-2001 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 "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"

static void ColouriseBatchLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int startLine,
    unsigned int endPos,
    WordList &keywords,
    Accessor &styler) {

	unsigned int i = 0;
	unsigned int state = SCE_BAT_DEFAULT;

	while (isspacechar(lineBuffer[i]) && (i < lengthLine)) {	// Skip initial spaces
		i++;
	}
	if (lineBuffer[i] == '@') {	// Hide command (ECHO OFF)
		styler.ColourTo(startLine + i, SCE_BAT_HIDE);
		i++;
		while (isspacechar(lineBuffer[i]) && (i < lengthLine)) {	// Skip next spaces
			i++;
		}
	}
	if (lineBuffer[i] == ':') {
		// Label
		if (lineBuffer[i + 1] == ':') {
			// :: is a fake label, similar to REM, see http://www.winmag.com/columns/explorer/2000/21.htm
			styler.ColourTo(endPos, SCE_BAT_COMMENT);
		} else {	// Real label
			styler.ColourTo(endPos, SCE_BAT_LABEL);
		}
	} else {
		// Check if initial word is a keyword
		char wordBuffer[21];
		unsigned int wbl = 0, offset = i;
		// Copy word in buffer
		for (; offset < lengthLine && wbl < 20 &&
		        !isspacechar(lineBuffer[offset]); wbl++, offset++) {
			wordBuffer[wbl] = static_cast<char>(tolower(lineBuffer[offset]));
		}
		wordBuffer[wbl] = '\0';
		// Check if it is a comment
		if (CompareCaseInsensitive(wordBuffer, "rem") == 0) {
			styler.ColourTo(endPos, SCE_BAT_COMMENT);
			return ;
		}
		// Check if it is in the list
		if (keywords.InList(wordBuffer)) {
			styler.ColourTo(startLine + offset - 1, SCE_BAT_WORD);	// Regular keyword
		} else {
			// Search end of word (can be a long path)
			while (offset < lengthLine &&
			        !isspacechar(lineBuffer[offset])) {
				offset++;
			}
			styler.ColourTo(startLine + offset - 1, SCE_BAT_COMMAND);	// External command / program
		}
		// Remainder of the line: colourise the variables.

		while (offset < lengthLine) {
			if (state == SCE_BAT_DEFAULT && lineBuffer[offset] == '%') {
				styler.ColourTo(startLine + offset - 1, state);
				if (isdigit(lineBuffer[offset + 1])) {
					styler.ColourTo(startLine + offset + 1, SCE_BAT_IDENTIFIER);
					offset += 2;
				} else if (lineBuffer[offset + 1] == '%' &&
				           !isspacechar(lineBuffer[offset + 2])) {
					// Should be safe, as there is CRLF at the end of the line...
					styler.ColourTo(startLine + offset + 2, SCE_BAT_IDENTIFIER);
					offset += 3;
				} else {
					state = SCE_BAT_IDENTIFIER;
				}
			} else if (state == SCE_BAT_IDENTIFIER && lineBuffer[offset] == '%') {
				styler.ColourTo(startLine + offset, state);
				state = SCE_BAT_DEFAULT;
			} else if (state == SCE_BAT_DEFAULT &&
			           (lineBuffer[offset] == '*' ||
			            lineBuffer[offset] == '?' ||
			            lineBuffer[offset] == '=' ||
			            lineBuffer[offset] == '<' ||
			            lineBuffer[offset] == '>' ||
			            lineBuffer[offset] == '|')) {
				styler.ColourTo(startLine + offset - 1, state);
				styler.ColourTo(startLine + offset, SCE_BAT_OPERATOR);
			}
			offset++;
		}
		//		if (endPos > startLine + offset - 1) {
		styler.ColourTo(endPos, SCE_BAT_DEFAULT);		// Remainder of line, currently not lexed
		//		}
	}

}
// ToDo: (not necessarily at beginning of line) GOTO, [IF] NOT, ERRORLEVEL
// IF [NO] (test) (command) -- test is EXIST (filename) | (string1)==(string2) | ERRORLEVEL (number)
// FOR %%(variable) IN (set) DO (command) -- variable is [a-zA-Z] -- eg for %%X in (*.txt) do type %%X
// ToDo: %n (parameters), %EnvironmentVariable% colourising
// ToDo: Colourise = > >> < | "

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

	char lineBuffer[1024];
	WordList &keywords = *keywordlists[0];

	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0, startLine = startPos;
	for (unsigned int i = startPos; i <= startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (styler[i] == '\r' || styler[i] == '\n' || (linePos >=
		        sizeof(lineBuffer) - 1)) {
			// End of line (or of line buffer) met, colourise it
			if (styler[i + 1] == '\n') {
				lineBuffer[linePos++] = styler[++i];
			}
			lineBuffer[linePos] = '\0';
			ColouriseBatchLine(lineBuffer, linePos, startLine, i, keywords, styler);
			linePos = 0;
			startLine = i + 1;
		}
	}
	if (linePos > 0) {
		ColouriseBatchLine(lineBuffer, linePos, startLine, startPos + length,
		                   keywords, styler);
	}
}

static void ColouriseDiffLine(char *lineBuffer, int endLine, Accessor &styler) {
	// It is needed to remember the current state to recognize starting
	// comment lines before the first "diff " or "--- ". If a real
	// difference starts then each line starting with ' ' is a whitespace
	// otherwise it is considered a comment (Only in..., Binary file...)
	if (0 == strncmp(lineBuffer, "diff ", 3)) {
		styler.ColourTo(endLine, 2);
	} else if (0 == strncmp(lineBuffer, "--- ", 3)) {
		styler.ColourTo(endLine, 3);
	} else if (0 == strncmp(lineBuffer, "+++ ", 3)) {
		styler.ColourTo(endLine, 3);
	} else if (lineBuffer[0] == '@') {
		styler.ColourTo(endLine, 4);
	} else if (lineBuffer[0] == '-') {
		styler.ColourTo(endLine, 5);
	} else if (lineBuffer[0] == '+') {
		styler.ColourTo(endLine, 6);
	} else if (lineBuffer[0] != ' ') {
		styler.ColourTo(endLine, 1);
	} else {
		styler.ColourTo(endLine, 0);
	}
}

static void ColouriseDiffDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
	char lineBuffer[1024];
	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0;
	for (unsigned int i = startPos; i < startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (styler[i] == '\r' || styler[i] == '\n' || (linePos >= sizeof(lineBuffer) - 1)) {
			ColouriseDiffLine(lineBuffer, i, styler);
			linePos = 0;
		}
	}
	if (linePos > 0)
		ColouriseDiffLine(lineBuffer, startPos + length, styler);
}

static void ColourisePropsLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int startLine,
    unsigned int endPos,
    Accessor &styler) {

	unsigned int i = 0;
	while (isspacechar(lineBuffer[i]) && (i < lengthLine))	// Skip initial spaces
		i++;
	if (lineBuffer[i] == '#' || lineBuffer[i] == '!' || lineBuffer[i] == ';') {
		styler.ColourTo(endPos, 1);
	} else if (lineBuffer[i] == '[') {
		styler.ColourTo(endPos, 2);
	} else if (lineBuffer[i] == '@') {
		styler.ColourTo(startLine + i, 4);
		if (lineBuffer[++i] == '=')
			styler.ColourTo(startLine + i, 3);
		styler.ColourTo(endPos, 0);
	} else {
		// Search for the '=' character
		while (lineBuffer[i] != '=' && (i < lengthLine - 1))
			i++;
		if (lineBuffer[i] == '=') {
			styler.ColourTo(startLine + i - 1, 0);
			styler.ColourTo(startLine + i, 3);
			styler.ColourTo(endPos, 0);
		} else {
			styler.ColourTo(endPos, 0);
		}
	}
}

static void ColourisePropsDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
	char lineBuffer[1024];
	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0, startLine = startPos;
	for (unsigned int i = startPos; i <= startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if ((styler[i] == '\r' && styler.SafeGetCharAt(i + 1) != '\n') ||
		        styler[i] == '\n' ||
		        (linePos >= sizeof(lineBuffer) - 1)) {
			lineBuffer[linePos] = '\0';
			ColourisePropsLine(lineBuffer, linePos, startLine, i, styler);
			linePos = 0;
			startLine = i + 1;
		}
	}
	if (linePos > 0)
		ColourisePropsLine(lineBuffer, linePos, startLine, startPos + length, styler);
}

static void ColouriseMakeLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int startLiHTTP/1.1 200 OK
Connection: keep-alive
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Content-Disposition: inline; filename="LexOthers.cxx"
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// Scintilla source code edit control
/** @file LexOthers.cxx
 ** Lexers for batch files, diff results, properties files, make files and error lists.
 ** Also lexer for LaTeX documents.
 **/
// Copyright 1998-2001 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 "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"

static void ColouriseBatchLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int startLine,
    unsigned int endPos,
    WordList &keywords,
    Accessor &styler) {

	unsigned int i = 0;
	unsigned int state = SCE_BAT_DEFAULT;

	while (isspacechar(lineBuffer[i]) && (i < lengthLine)) {	// Skip initial spaces
		i++;
	}
	if (lineBuffer[i] == '@') {	// Hide command (ECHO OFF)
		styler.ColourTo(startLine + i, SCE_BAT_HIDE);
		i++;
		while (isspacechar(lineBuffer[i]) && (i < lengthLine)) {	// Skip next spaces
			i++;
		}
	}
	if (lineBuffer[i] == ':') {
		// Label
		if (lineBuffer[i + 1] == ':') {
			// :: is a fake label, similar to REM, see http://www.winmag.com/columns/explorer/2000/21.htm
			styler.ColourTo(endPos, SCE_BAT_COMMENT);
		} else {	// Real label
			styler.ColourTo(endPos, SCE_BAT_LABEL);
		}
	} else {
		// Check if initial word is a keyword
		char wordBuffer[21];
		unsigned int wbl = 0, offset = i;
		// Copy word in buffer
		for (; offset < lengthLine && wbl < 20 &&
		        !isspacechar(lineBuffer[offset]); wbl++, offset++) {
			wordBuffer[wbl] = static_cast<char>(tolower(lineBuffer[offset]));
		}
		wordBuffer[wbl] = '\0';
		// Check if it is a comment
		if (CompareCaseInsensitive(wordBuffer, "rem") == 0) {
			styler.ColourTo(endPos, SCE_BAT_COMMENT);
			return ;
		}
		// Check if it is in the list
		if (keywords.InList(wordBuffer)) {
			styler.ColourTo(startLine + offset - 1, SCE_BAT_WORD);	// Regular keyword
		} else {
			// Search end of word (can be a long path)
			while (offset < lengthLine &&
			        !isspacechar(lineBuffer[offset])) {
				offset++;
			}
			styler.ColourTo(startLine + offset - 1, SCE_BAT_COMMAND);	// External command / program
		}
		// Remainder of the line: colourise the variables.

		while (offset < lengthLine) {
			if (state == SCE_BAT_DEFAULT && lineBuffer[offset] == '%') {
				styler.ColourTo(startLine + offset - 1, state);
				if (isdigit(lineBuffer[offset + 1])) {
					styler.ColourTo(startLine + offset + 1, SCE_BAT_IDENTIFIER);
					offset += 2;
				} else if (lineBuffer[offset + 1] == '%' &&
				           !isspacechar(lineBuffer[offset + 2])) {
					// Should be safe, as there is CRLF at the end of the line...
					styler.ColourTo(startLine + offset + 2, SCE_BAT_IDENTIFIER);
					offset += 3;
				} else {
					state = SCE_BAT_IDENTIFIER;
				}
			} else if (state == SCE_BAT_IDENTIFIER && lineBuffer[offset] == '%') {
				styler.ColourTo(startLine + offset, state);
				state = SCE_BAT_DEFAULT;
			} else if (state == SCE_BAT_DEFAULT &&
			           (lineBuffer[offset] == '*' ||
			            lineBuffer[offset] == '?' ||
			            lineBuffer[offset] == '=' ||
			            lineBuffer[offset] == '<' ||
			            lineBuffer[offset] == '>' ||
			            lineBuffer[offset] == '|')) {
				styler.ColourTo(startLine + offset - 1, state);
				styler.ColourTo(startLine + offset, SCE_BAT_OPERATOR);
			}
			offset++;
		}
		//		if (endPos > startLine + offset - 1) {
		styler.ColourTo(endPos, SCE_BAT_DEFAULT);		// Remainder of line, currently not lexed
		//		}
	}

}
// ToDo: (not necessarily at beginning of line) GOTO, [IF] NOT, ERRORLEVEL
// IF [NO] (test) (command) -- test is EXIST (filename) | (string1)==(string2) | ERRORLEVEL (number)
// FOR %%(variable) IN (set) DO (command) -- variable is [a-zA-Z] -- eg for %%X in (*.txt) do type %%X
// ToDo: %n (parameters), %EnvironmentVariable% colourising
// ToDo: Colourise = > >> < | "

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

	char lineBuffer[1024];
	WordList &keywords = *keywordlists[0];

	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0, startLine = startPos;
	for (unsigned int i = startPos; i <= startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (styler[i] == '\r' || styler[i] == '\n' || (linePos >=
		        sizeof(lineBuffer) - 1)) {
			// End of line (or of line buffer) met, colourise it
			if (styler[i + 1] == '\n') {
				lineBuffer[linePos++] = styler[++i];
			}
			lineBuffer[linePos] = '\0';
			ColouriseBatchLine(lineBuffer, linePos, startLine, i, keywords, styler);
			linePos = 0;
			startLine = i + 1;
		}
	}
	if (linePos > 0) {
		ColouriseBatchLine(lineBuffer, linePos, startLine, startPos + length,
		                   keywords, styler);
	}
}

static void ColouriseDiffLine(char *lineBuffer, int endLine, Accessor &styler) {
	// It is needed to remember the current state to recognize starting
	// comment lines before the first "diff " or "--- ". If a real
	// difference starts then each line starting with ' ' is a whitespace
	// otherwise it is considered a comment (Only in..., Binary file...)
	if (0 == strncmp(lineBuffer, "diff ", 3)) {
		styler.ColourTo(endLine, 2);
	} else if (0 == strncmp(lineBuffer, "--- ", 3)) {
		styler.ColourTo(endLine, 3);
	} else if (0 == strncmp(lineBuffer, "+++ ", 3)) {
		styler.ColourTo(endLine, 3);
	} else if (lineBuffer[0] == '@') {
		styler.ColourTo(endLine, 4);
	} else if (lineBuffer[0] == '-') {
		styler.ColourTo(endLine, 5);
	} else if (lineBuffer[0] == '+') {
		styler.ColourTo(endLine, 6);
	} else if (lineBuffer[0] != ' ') {
		styler.ColourTo(endLine, 1);
	} else {
		styler.ColourTo(endLine, 0);
	}
}

static void ColouriseDiffDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler) {
	char lineBuffer[1024];
	styler.StartAt(startPos);
	styler.StartSegment(startPos);
	unsigned int linePos = 0;
	for (unsigned int i = startPos; i < startPos + length; i++) {
		lineBuffer[linePos++] = styler[i];
		if (styler[i] == '\r' || styler[i] == '\n' || (linePos >= sizeof(lineBuffer) - 1)) {
			ColouriseDiffLine(lineBuffer, i, styler);
			linePos = 0;
		}
	}
	if (linePos > 0)
		ColouriseDiffLine(lineBuffer, startPos + length, styler);
}

static void ColourisePropsLine(
    char *lineBuffer,
    unsigned int lengthLine,
    unsigned int startLine,
    unsigned int endPos,
    Accessor &styler) {

	unsigned int i = 0;
	while (isspacech