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661 lines
19 KiB
661 lines
19 KiB
// Scintilla source code edit control
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/** @file LexNsis.cxx
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** Lexer for NSIS
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**/
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// Copyright 2003 - 2005 by Angelo Mandato <angelo [at] spaceblue [dot] com>
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// Last Updated: 03/13/2005
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <ctype.h>
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#include "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#include "StyleContext.h"
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#include "CharacterSet.h"
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#include "LexerModule.h"
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#ifdef SCI_NAMESPACE
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using namespace Scintilla;
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#endif
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/*
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// located in SciLexer.h
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#define SCLEX_NSIS 43
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#define SCE_NSIS_DEFAULT 0
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#define SCE_NSIS_COMMENT 1
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#define SCE_NSIS_STRINGDQ 2
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#define SCE_NSIS_STRINGLQ 3
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#define SCE_NSIS_STRINGRQ 4
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#define SCE_NSIS_FUNCTION 5
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#define SCE_NSIS_VARIABLE 6
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#define SCE_NSIS_LABEL 7
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#define SCE_NSIS_USERDEFINED 8
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#define SCE_NSIS_SECTIONDEF 9
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#define SCE_NSIS_SUBSECTIONDEF 10
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#define SCE_NSIS_IFDEFINEDEF 11
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#define SCE_NSIS_MACRODEF 12
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#define SCE_NSIS_STRINGVAR 13
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#define SCE_NSIS_NUMBER 14
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// ADDED for Scintilla v1.63
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#define SCE_NSIS_SECTIONGROUP 15
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#define SCE_NSIS_PAGEEX 16
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#define SCE_NSIS_FUNCTIONDEF 17
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#define SCE_NSIS_COMMENTBOX 18
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*/
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static bool isNsisNumber(char ch)
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{
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return (ch >= '0' && ch <= '9');
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}
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static bool isNsisChar(char ch)
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{
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return (ch == '.' ) || (ch == '_' ) || isNsisNumber(ch) || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
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}
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static bool isNsisLetter(char ch)
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{
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return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
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}
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static bool NsisNextLineHasElse(unsigned int start, unsigned int end, Accessor &styler)
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{
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int nNextLine = -1;
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for( unsigned int i = start; i < end; i++ )
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{
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char cNext = styler.SafeGetCharAt( i );
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if( cNext == '\n' )
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{
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nNextLine = i+1;
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break;
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}
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}
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if( nNextLine == -1 ) // We never found the next line...
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return false;
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for( unsigned int firstChar = nNextLine; firstChar < end; firstChar++ )
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{
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char cNext = styler.SafeGetCharAt( firstChar );
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if( cNext == ' ' )
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continue;
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if( cNext == '\t' )
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continue;
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if( cNext == '!' )
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{
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if( styler.Match(firstChar, "!else") )
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return true;
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}
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break;
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}
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return false;
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}
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static int NsisCmp( const char *s1, const char *s2, bool bIgnoreCase )
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{
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if( bIgnoreCase )
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return CompareCaseInsensitive( s1, s2);
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return strcmp( s1, s2 );
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}
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static int calculateFoldNsis(unsigned int start, unsigned int end, int foldlevel, Accessor &styler, bool bElse, bool foldUtilityCmd )
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{
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int style = styler.StyleAt(end);
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// If the word is too long, it is not what we are looking for
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if( end - start > 20 )
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return foldlevel;
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if( foldUtilityCmd )
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{
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// Check the style at this point, if it is not valid, then return zero
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if( style != SCE_NSIS_FUNCTIONDEF && style != SCE_NSIS_SECTIONDEF &&
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style != SCE_NSIS_SUBSECTIONDEF && style != SCE_NSIS_IFDEFINEDEF &&
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style != SCE_NSIS_MACRODEF && style != SCE_NSIS_SECTIONGROUP &&
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style != SCE_NSIS_PAGEEX )
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return foldlevel;
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}
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else
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{
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if( style != SCE_NSIS_FUNCTIONDEF && style != SCE_NSIS_SECTIONDEF &&
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style != SCE_NSIS_SUBSECTIONDEF && style != SCE_NSIS_SECTIONGROUP &&
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style != SCE_NSIS_PAGEEX )
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return foldlevel;
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}
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int newFoldlevel = foldlevel;
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bool bIgnoreCase = false;
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if( styler.GetPropertyInt("nsis.ignorecase") == 1 )
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bIgnoreCase = true;
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char s[20]; // The key word we are looking for has atmost 13 characters
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s[0] = '\0';
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for (unsigned int i = 0; i < end - start + 1 && i < 19; i++)
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{
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s[i] = static_cast<char>( styler[ start + i ] );
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s[i + 1] = '\0';
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}
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if( s[0] == '!' )
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{
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if( NsisCmp(s, "!ifndef", bIgnoreCase) == 0 || NsisCmp(s, "!ifdef", bIgnoreCase ) == 0 || NsisCmp(s, "!ifmacrodef", bIgnoreCase ) == 0 || NsisCmp(s, "!ifmacrondef", bIgnoreCase ) == 0 || NsisCmp(s, "!if", bIgnoreCase ) == 0 || NsisCmp(s, "!macro", bIgnoreCase ) == 0 )
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newFoldlevel++;
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else if( NsisCmp(s, "!endif", bIgnoreCase) == 0 || NsisCmp(s, "!macroend", bIgnoreCase ) == 0 )
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newFoldlevel--;
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else if( bElse && NsisCmp(s, "!else", bIgnoreCase) == 0 )
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newFoldlevel++;
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}
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else
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{
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if( NsisCmp(s, "Section", bIgnoreCase ) == 0 || NsisCmp(s, "SectionGroup", bIgnoreCase ) == 0 || NsisCmp(s, "Function", bIgnoreCase) == 0 || NsisCmp(s, "SubSection", bIgnoreCase ) == 0 || NsisCmp(s, "PageEx", bIgnoreCase ) == 0 )
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newFoldlevel++;
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else if( NsisCmp(s, "SectionGroupEnd", bIgnoreCase ) == 0 || NsisCmp(s, "SubSectionEnd", bIgnoreCase ) == 0 || NsisCmp(s, "FunctionEnd", bIgnoreCase) == 0 || NsisCmp(s, "SectionEnd", bIgnoreCase ) == 0 || NsisCmp(s, "PageExEnd", bIgnoreCase ) == 0 )
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newFoldlevel--;
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}
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return newFoldlevel;
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}
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static int classifyWordNsis(unsigned int start, unsigned int end, WordList *keywordLists[], Accessor &styler )
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{
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bool bIgnoreCase = false;
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if( styler.GetPropertyInt("nsis.ignorecase") == 1 )
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bIgnoreCase = true;
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bool bUserVars = false;
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if( styler.GetPropertyInt("nsis.uservars") == 1 )
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bUserVars = true;
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char s[100];
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WordList &Functions = *keywordLists[0];
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WordList &Variables = *keywordLists[1];
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WordList &Lables = *keywordLists[2];
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WordList &UserDefined = *keywordLists[3];
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for (unsigned int i = 0; i < end - start + 1 && i < 99; i++)
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{
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if( bIgnoreCase )
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s[i] = static_cast<char>( tolower(styler[ start + i ] ) );
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else
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s[i] = static_cast<char>( styler[ start + i ] );
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s[i + 1] = '\0';
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}
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// Check for special words...
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if( NsisCmp(s, "!macro", bIgnoreCase ) == 0 || NsisCmp(s, "!macroend", bIgnoreCase) == 0 ) // Covers !macro and !macroend
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return SCE_NSIS_MACRODEF;
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if( NsisCmp(s, "!ifdef", bIgnoreCase ) == 0 || NsisCmp(s, "!ifndef", bIgnoreCase) == 0 || NsisCmp(s, "!endif", bIgnoreCase) == 0 ) // Covers !ifdef, !ifndef and !endif
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return SCE_NSIS_IFDEFINEDEF;
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if( NsisCmp(s, "!if", bIgnoreCase ) == 0 || NsisCmp(s, "!else", bIgnoreCase ) == 0 ) // Covers !if and else
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return SCE_NSIS_IFDEFINEDEF;
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if (NsisCmp(s, "!ifmacrodef", bIgnoreCase ) == 0 || NsisCmp(s, "!ifmacrondef", bIgnoreCase ) == 0 ) // Covers !ifmacrodef and !ifnmacrodef
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return SCE_NSIS_IFDEFINEDEF;
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if( NsisCmp(s, "SectionGroup", bIgnoreCase) == 0 || NsisCmp(s, "SectionGroupEnd", bIgnoreCase) == 0 ) // Covers SectionGroup and SectionGroupEnd
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return SCE_NSIS_SECTIONGROUP;
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if( NsisCmp(s, "Section", bIgnoreCase ) == 0 || NsisCmp(s, "SectionEnd", bIgnoreCase) == 0 ) // Covers Section and SectionEnd
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return SCE_NSIS_SECTIONDEF;
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if( NsisCmp(s, "SubSection", bIgnoreCase) == 0 || NsisCmp(s, "SubSectionEnd", bIgnoreCase) == 0 ) // Covers SubSection and SubSectionEnd
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return SCE_NSIS_SUBSECTIONDEF;
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if( NsisCmp(s, "PageEx", bIgnoreCase) == 0 || NsisCmp(s, "PageExEnd", bIgnoreCase) == 0 ) // Covers PageEx and PageExEnd
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return SCE_NSIS_PAGEEX;
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if( NsisCmp(s, "Function", bIgnoreCase) == 0 || NsisCmp(s, "FunctionEnd", bIgnoreCase) == 0 ) // Covers Function and FunctionEnd
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return SCE_NSIS_FUNCTIONDEF;
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if ( Functions.InList(s) )
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return SCE_NSIS_FUNCTION;
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if ( Variables.InList(s) )
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return SCE_NSIS_VARIABLE;
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if ( Lables.InList(s) )
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return SCE_NSIS_LABEL;
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if( UserDefined.InList(s) )
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return SCE_NSIS_USERDEFINED;
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if( strlen(s) > 3 )
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{
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if( s[1] == '{' && s[strlen(s)-1] == '}' )
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return SCE_NSIS_VARIABLE;
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}
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// See if the variable is a user defined variable
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if( s[0] == '$' && bUserVars )
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{
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bool bHasSimpleNsisChars = true;
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for (unsigned int j = 1; j < end - start + 1 && j < 99; j++)
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{
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if( !isNsisChar( s[j] ) )
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{
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bHasSimpleNsisChars = false;
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break;
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}
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}
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if( bHasSimpleNsisChars )
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return SCE_NSIS_VARIABLE;
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}
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// To check for numbers
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if( isNsisNumber( s[0] ) )
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{
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bool bHasSimpleNsisNumber = true;
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for (unsigned int j = 1; j < end - start + 1 && j < 99; j++)
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{
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if( !isNsisNumber( s[j] ) )
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{
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bHasSimpleNsisNumber = false;
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break;
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}
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}
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if( bHasSimpleNsisNumber )
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return SCE_NSIS_NUMBER;
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}
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return SCE_NSIS_DEFAULT;
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}
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static void ColouriseNsisDoc(unsigned int startPos, int length, int, WordList *keywordLists[], Accessor &styler)
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{
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int state = SCE_NSIS_DEFAULT;
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if( startPos > 0 )
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state = styler.StyleAt(startPos-1); // Use the style from the previous line, usually default, but could be commentbox
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styler.StartAt( startPos );
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styler.GetLine( startPos );
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unsigned int nLengthDoc = startPos + length;
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styler.StartSegment( startPos );
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char cCurrChar;
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bool bVarInString = false;
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bool bClassicVarInString = false;
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unsigned int i;
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for( i = startPos; i < nLengthDoc; i++ )
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{
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cCurrChar = styler.SafeGetCharAt( i );
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char cNextChar = styler.SafeGetCharAt(i+1);
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switch(state)
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{
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case SCE_NSIS_DEFAULT:
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if( cCurrChar == ';' || cCurrChar == '#' ) // we have a comment line
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{
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styler.ColourTo(i-1, state );
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state = SCE_NSIS_COMMENT;
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break;
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}
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if( cCurrChar == '"' )
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{
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styler.ColourTo(i-1, state );
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state = SCE_NSIS_STRINGDQ;
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bVarInString = false;
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bClassicVarInString = false;
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break;
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}
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if( cCurrChar == '\'' )
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{
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styler.ColourTo(i-1, state );
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state = SCE_NSIS_STRINGRQ;
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bVarInString = false;
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bClassicVarInString = false;
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break;
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}
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if( cCurrChar == '`' )
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{
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styler.ColourTo(i-1, state );
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state = SCE_NSIS_STRINGLQ;
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bVarInString = false;
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bClassicVarInString = false;
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break;
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}
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// NSIS KeyWord,Function, Variable, UserDefined:
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if( cCurrChar == '$' || isNsisChar(cCurrChar) || cCurrChar == '!' )
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{
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styler.ColourTo(i-1,state);
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state = SCE_NSIS_FUNCTION;
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// If it is a number, we must check and set style here first...
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if( isNsisNumber(cCurrChar) && (cNextChar == '\t' || cNextChar == ' ' || cNextChar == '\r' || cNextChar == '\n' ) )
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styler.ColourTo( i, SCE_NSIS_NUMBER);
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break;
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}
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if( cCurrChar == '/' && cNextChar == '*' )
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{
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styler.ColourTo(i-1,state);
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state = SCE_NSIS_COMMENTBOX;
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break;
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}
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break;
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case SCE_NSIS_COMMENT:
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if( cNextChar == '\n' || cNextChar == '\r' )
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{
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// Special case:
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if( cCurrChar == '\\' )
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{
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styler.ColourTo(i-2,state);
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styler.ColourTo(i,SCE_NSIS_DEFAULT);
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}
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else
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{
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styler.ColourTo(i,state);
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state = SCE_NSIS_DEFAULT;
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}
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}
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break;
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case SCE_NSIS_STRINGDQ:
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case SCE_NSIS_STRINGLQ:
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case SCE_NSIS_STRINGRQ:
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if( styler.SafeGetCharAt(i-1) == '\\' && styler.SafeGetCharAt(i-2) == '$' )
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break; // Ignore the next character, even if it is a quote of some sort
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if( cCurrChar == '"' && state == SCE_NSIS_STRINGDQ )
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{
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styler.ColourTo(i,state);
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state = SCE_NSIS_DEFAULT;
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break;
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}
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if( cCurrChar == '`' && state == SCE_NSIS_STRINGLQ )
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{
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styler.ColourTo(i,state);
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state = SCE_NSIS_DEFAULT;
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break;
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}
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if( cCurrChar == '\'' && state == SCE_NSIS_STRINGRQ )
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{
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styler.ColourTo(i,state);
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state = SCE_NSIS_DEFAULT;
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break;
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}
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if( cNextChar == '\r' || cNextChar == '\n' )
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{
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int nCurLine = styler.GetLine(i+1);
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int nBack = i;
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// We need to check if the previous line has a \ in it...
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bool bNextLine = false;
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while( nBack > 0 )
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{
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if( styler.GetLine(nBack) != nCurLine )
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break;
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char cTemp = styler.SafeGetCharAt(nBack, 'a'); // Letter 'a' is safe here
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if( cTemp == '\\' )
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{
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bNextLine = true;
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break;
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}
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if( cTemp != '\r' && cTemp != '\n' && cTemp != '\t' && cTemp != ' ' )
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break;
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nBack--;
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}
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if( bNextLine )
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{
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styler.ColourTo(i+1,state);
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}
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if( bNextLine == false )
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{
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styler.ColourTo(i,state);
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state = SCE_NSIS_DEFAULT;
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}
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}
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break;
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case SCE_NSIS_FUNCTION:
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// NSIS KeyWord:
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if( cCurrChar == '$' )
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state = SCE_NSIS_DEFAULT;
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else if( cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' ) )
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state = SCE_NSIS_DEFAULT;
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else if( (isNsisChar(cCurrChar) && !isNsisChar( cNextChar) && cNextChar != '}') || cCurrChar == '}' )
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{
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state = classifyWordNsis( styler.GetStartSegment(), i, keywordLists, styler );
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styler.ColourTo( i, state);
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state = SCE_NSIS_DEFAULT;
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}
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else if( !isNsisChar( cCurrChar ) && cCurrChar != '{' && cCurrChar != '}' )
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{
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if( classifyWordNsis( styler.GetStartSegment(), i-1, keywordLists, styler) == SCE_NSIS_NUMBER )
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styler.ColourTo( i-1, SCE_NSIS_NUMBER );
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state = SCE_NSIS_DEFAULT;
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if( cCurrChar == '"' )
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{
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state = SCE_NSIS_STRINGDQ;
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bVarInString = false;
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bClassicVarInString = false;
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}
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else if( cCurrChar == '`' )
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{
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state = SCE_NSIS_STRINGLQ;
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bVarInString = false;
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bClassicVarInString = false;
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}
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else if( cCurrChar == '\'' )
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{
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state = SCE_NSIS_STRINGRQ;
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bVarInString = false;
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bClassicVarInString = false;
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}
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else if( cCurrChar == '#' || cCurrChar == ';' )
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{
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state = SCE_NSIS_COMMENT;
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}
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}
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break;
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case SCE_NSIS_COMMENTBOX:
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if( styler.SafeGetCharAt(i-1) == '*' && cCurrChar == '/' )
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{
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styler.ColourTo(i,state);
|
|
state = SCE_NSIS_DEFAULT;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if( state == SCE_NSIS_COMMENT || state == SCE_NSIS_COMMENTBOX )
|
|
{
|
|
styler.ColourTo(i,state);
|
|
}
|
|
else if( state == SCE_NSIS_STRINGDQ || state == SCE_NSIS_STRINGLQ || state == SCE_NSIS_STRINGRQ )
|
|
{
|
|
bool bIngoreNextDollarSign = false;
|
|
bool bUserVars = false;
|
|
if( styler.GetPropertyInt("nsis.uservars") == 1 )
|
|
bUserVars = true;
|
|
|
|
if( bVarInString && cCurrChar == '$' )
|
|
{
|
|
bVarInString = false;
|
|
bIngoreNextDollarSign = true;
|
|
}
|
|
else if( bVarInString && cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' || cNextChar == '"' || cNextChar == '`' || cNextChar == '\'' ) )
|
|
{
|
|
styler.ColourTo( i+1, SCE_NSIS_STRINGVAR);
|
|
bVarInString = false;
|
|
bIngoreNextDollarSign = false;
|
|
}
|
|
|
|
// Covers "$INSTDIR and user vars like $MYVAR"
|
|
else if( bVarInString && !isNsisChar(cNextChar) )
|
|
{
|
|
int nWordState = classifyWordNsis( styler.GetStartSegment(), i, keywordLists, styler);
|
|
if( nWordState == SCE_NSIS_VARIABLE )
|
|
styler.ColourTo( i, SCE_NSIS_STRINGVAR);
|
|
else if( bUserVars )
|
|
styler.ColourTo( i, SCE_NSIS_STRINGVAR);
|
|
bVarInString = false;
|
|
}
|
|
// Covers "${TEST}..."
|
|
else if( bClassicVarInString && cNextChar == '}' )
|
|
{
|
|
styler.ColourTo( i+1, SCE_NSIS_STRINGVAR);
|
|
bClassicVarInString = false;
|
|
}
|
|
|
|
// Start of var in string
|
|
if( !bIngoreNextDollarSign && cCurrChar == '$' && cNextChar == '{' )
|
|
{
|
|
styler.ColourTo( i-1, state);
|
|
bClassicVarInString = true;
|
|
bVarInString = false;
|
|
}
|
|
else if( !bIngoreNextDollarSign && cCurrChar == '$' )
|
|
{
|
|
styler.ColourTo( i-1, state);
|
|
bVarInString = true;
|
|
bClassicVarInString = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Colourise remaining document
|
|
styler.ColourTo(nLengthDoc-1,state);
|
|
}
|
|
|
|
static void FoldNsisDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler)
|
|
{
|
|
// No folding enabled, no reason to continue...
|
|
if( styler.GetPropertyInt("fold") == 0 )
|
|
return;
|
|
|
|
bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) == 1;
|
|
bool foldUtilityCmd = styler.GetPropertyInt("nsis.foldutilcmd", 1) == 1;
|
|
bool blockComment = false;
|
|
|
|
int lineCurrent = styler.GetLine(startPos);
|
|
unsigned int safeStartPos = styler.LineStart( lineCurrent );
|
|
|
|
bool bArg1 = true;
|
|
int nWordStart = -1;
|
|
|
|
int levelCurrent = SC_FOLDLEVELBASE;
|
|
if (lineCurrent > 0)
|
|
levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
|
|
int levelNext = levelCurrent;
|
|
int style = styler.StyleAt(safeStartPos);
|
|
if( style == SCE_NSIS_COMMENTBOX )
|
|
{
|
|
if( styler.SafeGetCharAt(safeStartPos) == '/' && styler.SafeGetCharAt(safeStartPos+1) == '*' )
|
|
levelNext++;
|
|
blockComment = true;
|
|
}
|
|
|
|
for (unsigned int i = safeStartPos; i < startPos + length; i++)
|
|
{
|
|
char chCurr = styler.SafeGetCharAt(i);
|
|
style = styler.StyleAt(i);
|
|
if( blockComment && style != SCE_NSIS_COMMENTBOX )
|
|
{
|
|
levelNext--;
|
|
blockComment = false;
|
|
}
|
|
else if( !blockComment && style == SCE_NSIS_COMMENTBOX )
|
|
{
|
|
levelNext++;
|
|
blockComment = true;
|
|
}
|
|
|
|
if( bArg1 && !blockComment)
|
|
{
|
|
if( nWordStart == -1 && (isNsisLetter(chCurr) || chCurr == '!') )
|
|
{
|
|
nWordStart = i;
|
|
}
|
|
else if( isNsisLetter(chCurr) == false && nWordStart > -1 )
|
|
{
|
|
int newLevel = calculateFoldNsis( nWordStart, i-1, levelNext, styler, foldAtElse, foldUtilityCmd );
|
|
|
|
if( newLevel == levelNext )
|
|
{
|
|
if( foldAtElse && foldUtilityCmd )
|
|
{
|
|
if( NsisNextLineHasElse(i, startPos + length, styler) )
|
|
levelNext--;
|
|
}
|
|
}
|
|
else
|
|
levelNext = newLevel;
|
|
bArg1 = false;
|
|
}
|
|
}
|
|
|
|
if( chCurr == '\n' )
|
|
{
|
|
if( bArg1 && foldAtElse && foldUtilityCmd && !blockComment )
|
|
{
|
|
if( NsisNextLineHasElse(i, startPos + length, styler) )
|
|
levelNext--;
|
|
}
|
|
|
|
// If we are on a new line...
|
|
int levelUse = levelCurrent;
|
|
int lev = levelUse | levelNext << 16;
|
|
if (levelUse < levelNext )
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
if (lev != styler.LevelAt(lineCurrent))
|
|
styler.SetLevel(lineCurrent, lev);
|
|
|
|
lineCurrent++;
|
|
levelCurrent = levelNext;
|
|
bArg1 = true; // New line, lets look at first argument again
|
|
nWordStart = -1;
|
|
}
|
|
}
|
|
|
|
int levelUse = levelCurrent;
|
|
int lev = levelUse | levelNext << 16;
|
|
if (levelUse < levelNext)
|
|
lev |= SC_FOLDLEVELHEADERFLAG;
|
|
if (lev != styler.LevelAt(lineCurrent))
|
|
styler.SetLevel(lineCurrent, lev);
|
|
}
|
|
|
|
static const char * const nsisWordLists[] = {
|
|
"Functions",
|
|
"Variables",
|
|
"Lables",
|
|
"UserDefined",
|
|
0, };
|
|
|
|
|
|
LexerModule lmNsis(SCLEX_NSIS, ColouriseNsisDoc, "nsis", FoldNsisDoc, nsisWordLists);
|
|
|