1 // SciTE - Scintilla based Text Editor
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5 ** Written by Alexey Yutkin <yutkin@geol.msu.ru>.
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7 // Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
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8 // The License.txt file describes the conditions under which this software may be distributed.
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16 #include "Platform.h"
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18 #include "PropSet.h"
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19 #include "Accessor.h"
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20 #include "StyleContext.h"
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21 #include "KeyWords.h"
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22 #include "Scintilla.h"
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23 #include "SciLexer.h"
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25 #ifdef SCI_NAMESPACE
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26 using namespace Scintilla;
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30 static inline bool IsAWordChar(const int ch) {
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31 return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_');
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33 static inline bool IsEnumChar(const int ch) {
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34 return (ch < 0x80) && (isalnum(ch)|| ch == '_');
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36 static inline bool IsANumberChar(const int ch) {
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37 return (ch < 0x80) && (isalnum(ch) || ch == '.' );
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40 inline bool IsAWordStart(const int ch) {
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41 return (ch < 0x80) && (isalnum(ch) || ch == '_');
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44 inline bool isAveOperator(char ch) {
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47 // '.' left out as it is used to make up numbers
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48 if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
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49 ch == '(' || ch == ')' || ch == '=' ||
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50 ch == '{' || ch == '}' ||
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51 ch == '[' || ch == ']' || ch == ';' ||
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52 ch == '<' || ch == '>' || ch == ',' ||
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58 static void ColouriseAveDoc(
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59 unsigned int startPos,
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62 WordList *keywordlists[],
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65 WordList &keywords = *keywordlists[0];
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66 WordList &keywords2 = *keywordlists[1];
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67 WordList &keywords3 = *keywordlists[2];
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68 WordList &keywords4 = *keywordlists[3];
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69 WordList &keywords5 = *keywordlists[4];
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70 WordList &keywords6 = *keywordlists[5];
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72 // Do not leak onto next line
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73 if (initStyle == SCE_AVE_STRINGEOL) {
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74 initStyle = SCE_AVE_DEFAULT;
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77 StyleContext sc(startPos, length, initStyle, styler);
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79 for (; sc.More(); sc.Forward()) {
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81 // Update the line state, so it can be seen by next line
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82 int currentLine = styler.GetLine(sc.currentPos);
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83 styler.SetLineState(currentLine, 0);
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85 if (sc.atLineStart && (sc.state == SCE_AVE_STRING)) {
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86 // Prevent SCE_AVE_STRINGEOL from leaking back to previous line
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87 sc.SetState(SCE_AVE_STRING);
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91 // Determine if the current state should terminate.
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92 if (sc.state == SCE_AVE_OPERATOR) {
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93 sc.SetState(SCE_AVE_DEFAULT);
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94 } else if (sc.state == SCE_AVE_NUMBER) {
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95 if (!IsANumberChar(sc.ch)) {
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96 sc.SetState(SCE_AVE_DEFAULT);
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98 } else if (sc.state == SCE_AVE_ENUM) {
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99 if (!IsEnumChar(sc.ch)) {
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100 sc.SetState(SCE_AVE_DEFAULT);
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102 } else if (sc.state == SCE_AVE_IDENTIFIER) {
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103 if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
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105 //sc.GetCurrent(s, sizeof(s));
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106 sc.GetCurrentLowered(s, sizeof(s));
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107 if (keywords.InList(s)) {
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108 sc.ChangeState(SCE_AVE_WORD);
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109 } else if (keywords2.InList(s)) {
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110 sc.ChangeState(SCE_AVE_WORD2);
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111 } else if (keywords3.InList(s)) {
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112 sc.ChangeState(SCE_AVE_WORD3);
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113 } else if (keywords4.InList(s)) {
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114 sc.ChangeState(SCE_AVE_WORD4);
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115 } else if (keywords5.InList(s)) {
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116 sc.ChangeState(SCE_AVE_WORD5);
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117 } else if (keywords6.InList(s)) {
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118 sc.ChangeState(SCE_AVE_WORD6);
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120 sc.SetState(SCE_AVE_DEFAULT);
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122 } else if (sc.state == SCE_AVE_COMMENT) {
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123 if (sc.atLineEnd) {
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124 sc.SetState(SCE_AVE_DEFAULT);
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126 } else if (sc.state == SCE_AVE_STRING) {
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127 if (sc.ch == '\"') {
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128 sc.ForwardSetState(SCE_AVE_DEFAULT);
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129 } else if (sc.atLineEnd) {
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130 sc.ChangeState(SCE_AVE_STRINGEOL);
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131 sc.ForwardSetState(SCE_AVE_DEFAULT);
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135 // Determine if a new state should be entered.
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136 if (sc.state == SCE_AVE_DEFAULT) {
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137 if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
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138 sc.SetState(SCE_AVE_NUMBER);
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139 } else if (IsAWordStart(sc.ch)) {
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140 sc.SetState(SCE_AVE_IDENTIFIER);
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141 } else if (sc.Match('\"')) {
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142 sc.SetState(SCE_AVE_STRING);
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143 } else if (sc.Match('\'')) {
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144 sc.SetState(SCE_AVE_COMMENT);
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146 } else if (isAveOperator(static_cast<char>(sc.ch))) {
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147 sc.SetState(SCE_AVE_OPERATOR);
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148 } else if (sc.Match('#')) {
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149 sc.SetState(SCE_AVE_ENUM);
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157 static void FoldAveDoc(unsigned int startPos, int length, int /* initStyle */, WordList *[],
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158 Accessor &styler) {
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159 unsigned int lengthDoc = startPos + length;
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160 int visibleChars = 0;
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161 int lineCurrent = styler.GetLine(startPos);
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162 int levelPrev = styler.LevelAt(lineCurrent) & SC_FOLDLEVELNUMBERMASK;
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163 int levelCurrent = levelPrev;
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164 char chNext = static_cast<char>(tolower(styler[startPos]));
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165 bool foldCompact = styler.GetPropertyInt("fold.compact", 1) != 0;
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166 int styleNext = styler.StyleAt(startPos);
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169 for (unsigned int i = startPos; i < lengthDoc; i++) {
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170 char ch = static_cast<char>(tolower(chNext));
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171 chNext = static_cast<char>(tolower(styler.SafeGetCharAt(i + 1)));
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172 int style = styleNext;
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173 styleNext = styler.StyleAt(i + 1);
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174 bool atEOL = (ch == '\r' && chNext != '\n') || (ch == '\n');
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175 if (style == SCE_AVE_WORD) {
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176 if (ch == 't' || ch == 'f' || ch == 'w' || ch == 'e') {
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177 for (unsigned int j = 0; j < 6; j++) {
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178 if (!iswordchar(styler[i + j])) {
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181 s[j] = static_cast<char>(tolower(styler[i + j]));
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185 if ((strcmp(s, "then") == 0) || (strcmp(s, "for") == 0) || (strcmp(s, "while") == 0)) {
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188 if ((strcmp(s, "end") == 0) || (strcmp(s, "elseif") == 0)) {
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189 // Normally "elseif" and "then" will be on the same line and will cancel
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190 // each other out. // As implemented, this does not support fold.at.else.
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194 } else if (style == SCE_AVE_OPERATOR) {
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195 if (ch == '{' || ch == '(') {
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197 } else if (ch == '}' || ch == ')') {
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203 int lev = levelPrev;
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204 if (visibleChars == 0 && foldCompact) {
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205 lev |= SC_FOLDLEVELWHITEFLAG;
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207 if ((levelCurrent > levelPrev) && (visibleChars > 0)) {
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208 lev |= SC_FOLDLEVELHEADERFLAG;
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210 if (lev != styler.LevelAt(lineCurrent)) {
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211 styler.SetLevel(lineCurrent, lev);
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214 levelPrev = levelCurrent;
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217 if (!isspacechar(ch)) {
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221 // Fill in the real level of the next line, keeping the current flags as they will be filled in later
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223 int flagsNext = styler.LevelAt(lineCurrent) & ~SC_FOLDLEVELNUMBERMASK;
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224 styler.SetLevel(lineCurrent, levelPrev | flagsNext);
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227 LexerModule lmAVE(SCLEX_AVE, ColouriseAveDoc, "ave", FoldAveDoc);
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