1 // Scintilla source code edit control
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2 /** @file LexCmake.cxx
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5 // Copyright 2007 by Cristian Adam <cristian [dot] adam [at] gmx [dot] net>
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6 // based on the NSIS lexer
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7 // The License.txt file describes the conditions under which this software may be distributed.
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14 #include "Platform.h"
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16 #include "PropSet.h"
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17 #include "Accessor.h"
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18 #include "KeyWords.h"
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19 #include "Scintilla.h"
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20 #include "SciLexer.h"
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22 #ifdef SCI_NAMESPACE
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23 using namespace Scintilla;
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26 static bool isCmakeNumber(char ch)
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28 return(ch >= '0' && ch <= '9');
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31 static bool isCmakeChar(char ch)
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33 return(ch == '.' ) || (ch == '_' ) || isCmakeNumber(ch) || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
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36 static bool isCmakeLetter(char ch)
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38 return(ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
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41 static bool CmakeNextLineHasElse(unsigned int start, unsigned int end, Accessor &styler)
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44 for ( unsigned int i = start; i < end; i++ ) {
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45 char cNext = styler.SafeGetCharAt( i );
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46 if ( cNext == '\n' ) {
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52 if ( nNextLine == -1 ) // We never foudn the next line...
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55 for ( unsigned int firstChar = nNextLine; firstChar < end; firstChar++ ) {
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56 char cNext = styler.SafeGetCharAt( firstChar );
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59 if ( cNext == '\t' )
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61 if ( styler.Match(firstChar, "ELSE") || styler.Match(firstChar, "else"))
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69 static int calculateFoldCmake(unsigned int start, unsigned int end, int foldlevel, Accessor &styler, bool bElse)
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71 // If the word is too long, it is not what we are looking for
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72 if ( end - start > 20 )
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75 int newFoldlevel = foldlevel;
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77 char s[20]; // The key word we are looking for has atmost 13 characters
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78 for (unsigned int i = 0; i < end - start + 1 && i < 19; i++) {
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79 s[i] = static_cast<char>( styler[ start + i ] );
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83 if ( CompareCaseInsensitive(s, "IF") == 0 || CompareCaseInsensitive(s, "WHILE") == 0
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84 || CompareCaseInsensitive(s, "MACRO") == 0 || CompareCaseInsensitive(s, "FOREACH") == 0
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85 || CompareCaseInsensitive(s, "ELSEIF") == 0 )
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87 else if ( CompareCaseInsensitive(s, "ENDIF") == 0 || CompareCaseInsensitive(s, "ENDWHILE") == 0
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88 || CompareCaseInsensitive(s, "ENDMACRO") == 0 || CompareCaseInsensitive(s, "ENDFOREACH") == 0)
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90 else if ( bElse && CompareCaseInsensitive(s, "ELSEIF") == 0 )
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92 else if ( bElse && CompareCaseInsensitive(s, "ELSE") == 0 )
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95 return newFoldlevel;
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98 static int classifyWordCmake(unsigned int start, unsigned int end, WordList *keywordLists[], Accessor &styler )
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100 char word[100] = {0};
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101 char lowercaseWord[100] = {0};
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103 WordList &Commands = *keywordLists[0];
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104 WordList &Parameters = *keywordLists[1];
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105 WordList &UserDefined = *keywordLists[2];
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107 for (unsigned int i = 0; i < end - start + 1 && i < 99; i++) {
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108 word[i] = static_cast<char>( styler[ start + i ] );
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109 lowercaseWord[i] = static_cast<char>(tolower(word[i]));
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112 // Check for special words...
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113 if ( CompareCaseInsensitive(word, "MACRO") == 0 || CompareCaseInsensitive(word, "ENDMACRO") == 0 )
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114 return SCE_CMAKE_MACRODEF;
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116 if ( CompareCaseInsensitive(word, "IF") == 0 || CompareCaseInsensitive(word, "ENDIF") == 0 )
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117 return SCE_CMAKE_IFDEFINEDEF;
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119 if ( CompareCaseInsensitive(word, "ELSEIF") == 0 || CompareCaseInsensitive(word, "ELSE") == 0 )
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120 return SCE_CMAKE_IFDEFINEDEF;
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122 if ( CompareCaseInsensitive(word, "WHILE") == 0 || CompareCaseInsensitive(word, "ENDWHILE") == 0)
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123 return SCE_CMAKE_WHILEDEF;
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125 if ( CompareCaseInsensitive(word, "FOREACH") == 0 || CompareCaseInsensitive(word, "ENDFOREACH") == 0)
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126 return SCE_CMAKE_FOREACHDEF;
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128 if ( Commands.InList(lowercaseWord) )
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129 return SCE_CMAKE_COMMANDS;
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131 if ( Parameters.InList(word) )
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132 return SCE_CMAKE_PARAMETERS;
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135 if ( UserDefined.InList(word) )
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136 return SCE_CMAKE_USERDEFINED;
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138 if ( strlen(word) > 3 ) {
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139 if ( word[1] == '{' && word[strlen(word)-1] == '}' )
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140 return SCE_CMAKE_VARIABLE;
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143 // To check for numbers
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144 if ( isCmakeNumber( word[0] ) ) {
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145 bool bHasSimpleCmakeNumber = true;
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146 for (unsigned int j = 1; j < end - start + 1 && j < 99; j++) {
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147 if ( !isCmakeNumber( word[j] ) ) {
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148 bHasSimpleCmakeNumber = false;
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153 if ( bHasSimpleCmakeNumber )
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154 return SCE_CMAKE_NUMBER;
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157 return SCE_CMAKE_DEFAULT;
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160 static void ColouriseCmakeDoc(unsigned int startPos, int length, int, WordList *keywordLists[], Accessor &styler)
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162 int state = SCE_CMAKE_DEFAULT;
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163 if ( startPos > 0 )
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164 state = styler.StyleAt(startPos-1); // Use the style from the previous line, usually default, but could be commentbox
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166 styler.StartAt( startPos );
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167 styler.GetLine( startPos );
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169 unsigned int nLengthDoc = startPos + length;
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170 styler.StartSegment( startPos );
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173 bool bVarInString = false;
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174 bool bClassicVarInString = false;
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177 for ( i = startPos; i < nLengthDoc; i++ ) {
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178 cCurrChar = styler.SafeGetCharAt( i );
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179 char cNextChar = styler.SafeGetCharAt(i+1);
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182 case SCE_CMAKE_DEFAULT:
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183 if ( cCurrChar == '#' ) { // we have a comment line
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184 styler.ColourTo(i-1, state );
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185 state = SCE_CMAKE_COMMENT;
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188 if ( cCurrChar == '"' ) {
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189 styler.ColourTo(i-1, state );
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190 state = SCE_CMAKE_STRINGDQ;
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191 bVarInString = false;
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192 bClassicVarInString = false;
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195 if ( cCurrChar == '\'' ) {
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196 styler.ColourTo(i-1, state );
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197 state = SCE_CMAKE_STRINGRQ;
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198 bVarInString = false;
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199 bClassicVarInString = false;
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202 if ( cCurrChar == '`' ) {
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203 styler.ColourTo(i-1, state );
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204 state = SCE_CMAKE_STRINGLQ;
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205 bVarInString = false;
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206 bClassicVarInString = false;
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211 if ( cCurrChar == '$' || isCmakeChar(cCurrChar)) {
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212 styler.ColourTo(i-1,state);
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213 state = SCE_CMAKE_VARIABLE;
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215 // If it is a number, we must check and set style here first...
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216 if ( isCmakeNumber(cCurrChar) && (cNextChar == '\t' || cNextChar == ' ' || cNextChar == '\r' || cNextChar == '\n' ) )
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217 styler.ColourTo( i, SCE_CMAKE_NUMBER);
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223 case SCE_CMAKE_COMMENT:
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224 if ( cNextChar == '\n' || cNextChar == '\r' ) {
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226 if ( cCurrChar == '\\' ) {
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227 styler.ColourTo(i-2,state);
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228 styler.ColourTo(i,SCE_CMAKE_DEFAULT);
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231 styler.ColourTo(i,state);
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232 state = SCE_CMAKE_DEFAULT;
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236 case SCE_CMAKE_STRINGDQ:
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237 case SCE_CMAKE_STRINGLQ:
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238 case SCE_CMAKE_STRINGRQ:
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240 if ( styler.SafeGetCharAt(i-1) == '\\' && styler.SafeGetCharAt(i-2) == '$' )
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241 break; // Ignore the next character, even if it is a quote of some sort
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243 if ( cCurrChar == '"' && state == SCE_CMAKE_STRINGDQ ) {
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244 styler.ColourTo(i,state);
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245 state = SCE_CMAKE_DEFAULT;
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249 if ( cCurrChar == '`' && state == SCE_CMAKE_STRINGLQ ) {
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250 styler.ColourTo(i,state);
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251 state = SCE_CMAKE_DEFAULT;
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255 if ( cCurrChar == '\'' && state == SCE_CMAKE_STRINGRQ ) {
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256 styler.ColourTo(i,state);
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257 state = SCE_CMAKE_DEFAULT;
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261 if ( cNextChar == '\r' || cNextChar == '\n' ) {
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262 int nCurLine = styler.GetLine(i+1);
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264 // We need to check if the previous line has a \ in it...
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265 bool bNextLine = false;
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267 while ( nBack > 0 ) {
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268 if ( styler.GetLine(nBack) != nCurLine )
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271 char cTemp = styler.SafeGetCharAt(nBack, 'a'); // Letter 'a' is safe here
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273 if ( cTemp == '\\' ) {
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277 if ( cTemp != '\r' && cTemp != '\n' && cTemp != '\t' && cTemp != ' ' )
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284 styler.ColourTo(i+1,state);
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286 if ( bNextLine == false ) {
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287 styler.ColourTo(i,state);
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288 state = SCE_CMAKE_DEFAULT;
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293 case SCE_CMAKE_VARIABLE:
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296 if ( cCurrChar == '$' )
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297 state = SCE_CMAKE_DEFAULT;
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298 else if ( cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' ) )
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299 state = SCE_CMAKE_DEFAULT;
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300 else if ( (isCmakeChar(cCurrChar) && !isCmakeChar( cNextChar) && cNextChar != '}') || cCurrChar == '}' ) {
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301 state = classifyWordCmake( styler.GetStartSegment(), i, keywordLists, styler );
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302 styler.ColourTo( i, state);
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303 state = SCE_CMAKE_DEFAULT;
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305 else if ( !isCmakeChar( cCurrChar ) && cCurrChar != '{' && cCurrChar != '}' ) {
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306 if ( classifyWordCmake( styler.GetStartSegment(), i-1, keywordLists, styler) == SCE_CMAKE_NUMBER )
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307 styler.ColourTo( i-1, SCE_CMAKE_NUMBER );
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309 state = SCE_CMAKE_DEFAULT;
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311 if ( cCurrChar == '"' ) {
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312 state = SCE_CMAKE_STRINGDQ;
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313 bVarInString = false;
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314 bClassicVarInString = false;
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316 else if ( cCurrChar == '`' ) {
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317 state = SCE_CMAKE_STRINGLQ;
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318 bVarInString = false;
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319 bClassicVarInString = false;
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321 else if ( cCurrChar == '\'' ) {
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322 state = SCE_CMAKE_STRINGRQ;
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323 bVarInString = false;
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324 bClassicVarInString = false;
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326 else if ( cCurrChar == '#' ) {
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327 state = SCE_CMAKE_COMMENT;
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333 if ( state == SCE_CMAKE_COMMENT) {
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334 styler.ColourTo(i,state);
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336 else if ( state == SCE_CMAKE_STRINGDQ || state == SCE_CMAKE_STRINGLQ || state == SCE_CMAKE_STRINGRQ ) {
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337 bool bIngoreNextDollarSign = false;
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339 if ( bVarInString && cCurrChar == '$' ) {
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340 bVarInString = false;
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341 bIngoreNextDollarSign = true;
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343 else if ( bVarInString && cCurrChar == '\\' && (cNextChar == 'n' || cNextChar == 'r' || cNextChar == 't' || cNextChar == '"' || cNextChar == '`' || cNextChar == '\'' ) ) {
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344 styler.ColourTo( i+1, SCE_CMAKE_STRINGVAR);
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345 bVarInString = false;
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346 bIngoreNextDollarSign = false;
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349 else if ( bVarInString && !isCmakeChar(cNextChar) ) {
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350 int nWordState = classifyWordCmake( styler.GetStartSegment(), i, keywordLists, styler);
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351 if ( nWordState == SCE_CMAKE_VARIABLE )
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352 styler.ColourTo( i, SCE_CMAKE_STRINGVAR);
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353 bVarInString = false;
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355 // Covers "${TEST}..."
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356 else if ( bClassicVarInString && cNextChar == '}' ) {
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357 styler.ColourTo( i+1, SCE_CMAKE_STRINGVAR);
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358 bClassicVarInString = false;
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361 // Start of var in string
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362 if ( !bIngoreNextDollarSign && cCurrChar == '$' && cNextChar == '{' ) {
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363 styler.ColourTo( i-1, state);
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364 bClassicVarInString = true;
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365 bVarInString = false;
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367 else if ( !bIngoreNextDollarSign && cCurrChar == '$' ) {
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368 styler.ColourTo( i-1, state);
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369 bVarInString = true;
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370 bClassicVarInString = false;
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375 // Colourise remaining document
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376 styler.ColourTo(nLengthDoc-1,state);
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379 static void FoldCmakeDoc(unsigned int startPos, int length, int, WordList *[], Accessor &styler)
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381 // No folding enabled, no reason to continue...
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382 if ( styler.GetPropertyInt("fold") == 0 )
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385 bool foldAtElse = styler.GetPropertyInt("fold.at.else", 0) == 1;
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387 int lineCurrent = styler.GetLine(startPos);
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388 unsigned int safeStartPos = styler.LineStart( lineCurrent );
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391 int nWordStart = -1;
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393 int levelCurrent = SC_FOLDLEVELBASE;
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394 if (lineCurrent > 0)
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395 levelCurrent = styler.LevelAt(lineCurrent-1) >> 16;
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396 int levelNext = levelCurrent;
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398 for (unsigned int i = safeStartPos; i < startPos + length; i++) {
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399 char chCurr = styler.SafeGetCharAt(i);
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402 if ( nWordStart == -1 && (isCmakeLetter(chCurr)) ) {
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405 else if ( isCmakeLetter(chCurr) == false && nWordStart > -1 ) {
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406 int newLevel = calculateFoldCmake( nWordStart, i-1, levelNext, styler, foldAtElse);
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408 if ( newLevel == levelNext ) {
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409 if ( foldAtElse ) {
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410 if ( CmakeNextLineHasElse(i, startPos + length, styler) )
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415 levelNext = newLevel;
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420 if ( chCurr == '\n' ) {
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421 if ( bArg1 && foldAtElse) {
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422 if ( CmakeNextLineHasElse(i, startPos + length, styler) )
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426 // If we are on a new line...
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427 int levelUse = levelCurrent;
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428 int lev = levelUse | levelNext << 16;
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429 if (levelUse < levelNext )
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430 lev |= SC_FOLDLEVELHEADERFLAG;
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431 if (lev != styler.LevelAt(lineCurrent))
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432 styler.SetLevel(lineCurrent, lev);
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435 levelCurrent = levelNext;
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436 bArg1 = true; // New line, lets look at first argument again
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441 int levelUse = levelCurrent;
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442 int lev = levelUse | levelNext << 16;
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443 if (levelUse < levelNext)
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444 lev |= SC_FOLDLEVELHEADERFLAG;
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445 if (lev != styler.LevelAt(lineCurrent))
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446 styler.SetLevel(lineCurrent, lev);
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449 static const char * const cmakeWordLists[] = {
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456 LexerModule lmCmake(SCLEX_CMAKE, ColouriseCmakeDoc, "cmake", FoldCmakeDoc, cmakeWordLists);
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