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-rw-r--r--src/LexLua.cxx334
1 files changed, 150 insertions, 184 deletions
diff --git a/src/LexLua.cxx b/src/LexLua.cxx
index b9303ad41..dfa5d848e 100644
--- a/src/LexLua.cxx
+++ b/src/LexLua.cxx
@@ -18,212 +18,176 @@
#include "PropSet.h"
#include "Accessor.h"
+#include "StyleContext.h"
#include "KeyWords.h"
#include "Scintilla.h"
#include "SciLexer.h"
+
+static inline bool IsAWordChar(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '.' || ch == '_');
+}
+
+inline bool IsAWordStart(const int ch) {
+ return (ch < 0x80) && (isalnum(ch) || ch == '_');
+}
+
+
inline bool isLuaOperator(char ch) {
if (isalnum(ch))
return false;
// '.' left out as it is used to make up numbers
if (ch == '*' || ch == '/' || ch == '-' || ch == '+' ||
- ch == '(' || ch == ')' || ch == '=' ||
- ch == '{' || ch == '}' || ch == '~' ||
- ch == '[' || ch == ']' || ch == ';' ||
- ch == '<' || ch == '>' || ch == ',' ||
- ch == '.' || ch == '^' || ch == '%' || ch == ':')
+ ch == '(' || ch == ')' || ch == '=' ||
+ ch == '{' || ch == '}' || ch == '~' ||
+ ch == '[' || ch == ']' || ch == ';' ||
+ ch == '<' || ch == '>' || ch == ',' ||
+ ch == '.' || ch == '^' || ch == '%' || ch == ':')
return true;
return false;
}
-static void ColouriseLuaDoc(unsigned int startPos,
- int length,
- int initStyle,
- WordList *keywordLists[],
- Accessor &styler) {
-
- WordList &keywords = *keywordLists[0];
- WordList &keywords2 = *keywordLists[1];
- WordList &keywords3 = *keywordLists[2];
- WordList &keywords4 = *keywordLists[3];
- WordList &keywords5 = *keywordLists[4];
- WordList &keywords6 = *keywordLists[5];
-
- styler.StartAt(startPos);
- styler.GetLine(startPos);
- int state = initStyle;
- char chPrev = ' ';
- char chNext = styler[startPos];
- unsigned int lengthDoc = startPos + length;
- bool firstChar = true;
+static void ColouriseLuaDoc(unsigned int startPos, int length, int initStyle, WordList *keywordlists[],
+ Accessor &styler) {
- /* Must initialize the literalString level, if we are inside such a string.
- * Note: this isn't enough, because literal strings can be nested,
- * we should go back to see at what level we are...
- */
- int literalString = (initStyle == SCE_LUA_LITERALSTRING) ? 1 : 0;
+ WordList &keywords = *keywordlists[0];
+ WordList &keywords2 = *keywordlists[1];
+ WordList &keywords3 = *keywordlists[2];
+ WordList &keywords4 = *keywordlists[3];
+ WordList &keywords5 = *keywordlists[4];
+ WordList &keywords6 = *keywordlists[5];
+ int literalString = 0;
+ int literalStringFlag =0;
- styler.StartSegment(startPos);
- for (unsigned int i = startPos; i <= lengthDoc; i++) {
- char ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
+ // Do not leak onto next line
+ if (initStyle == SCE_LUA_STRINGEOL)
+ initStyle = SCE_LUA_DEFAULT;
- if (styler.IsLeadByte(ch)) {
- chNext = styler.SafeGetCharAt(i + 2);
- chPrev = ' ';
- i += 1;
- continue;
- }
+ int chPrevNonWhite = ' ';
+ int visibleChars = 0;
- if (state == SCE_LUA_STRINGEOL) {
- if (ch != '\r' && ch != '\n') {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_DEFAULT;
+ StyleContext sc(startPos, length, initStyle, styler);
+ if(startPos == 0 && sc.ch == '#') sc.SetState(SCE_LUA_COMMENTLINE);
+ for (; sc.More(); sc.Forward()) {
+
+ // Handle line continuation generically.
+ if (sc.ch == '\\') {
+ if (sc.Match("\\\n")) {
+ sc.Forward();
+ sc.Forward();
+ continue;
+ }
+ if (sc.Match("\\\r\n")) {
+ sc.Forward();
+ sc.Forward();
+ sc.Forward();
+ continue;
}
}
- if (state == SCE_LUA_DEFAULT) {
- if (ch == '-' && chNext == '-') {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_COMMENTLINE;
- } else if (ch == '[' && chNext == '[') {
- state = SCE_LUA_LITERALSTRING;
- literalString = 1;
- } else if (ch == '\"') {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_STRING;
- } else if (ch == '\'') {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_CHARACTER;
- } else if (ch == '$' && firstChar) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_PREPROCESSOR;
- } else if (ch == '#' && firstChar) { // Should be only on the first line of the file! Cannot be tested here
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_COMMENTLINE;
- } else if (isLuaOperator(ch)) {
- styler.ColourTo(i - 1, state);
- styler.ColourTo(i, SCE_LUA_OPERATOR);
- } else if (isdigit(ch) || (ch == '.')) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_NUMBER;
- } else if (iswordstart(ch)) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_WORD;
+ // Determine if the current state should terminate.
+ if (sc.state == SCE_LUA_OPERATOR) {
+ sc.SetState(SCE_LUA_DEFAULT);
+ } else if (sc.state == SCE_LUA_NUMBER) {
+ if (!IsAWordChar(sc.ch)) {
+ sc.SetState(SCE_LUA_DEFAULT);
}
- } else {
- if (state == SCE_LUA_NUMBER) {
- if (!iswordchar(ch)) {
- styler.ColourTo(i - 1, SCE_LUA_NUMBER);
- state = SCE_LUA_DEFAULT;
- }
- } else if (state == SCE_LUA_WORD) {
- if (!iswordchar(ch) || (ch == '.')) {
- char s[100];
- unsigned int start = styler.GetStartSegment();
- unsigned int end = i - 1;
-
- for (unsigned int n = 0; n < end - start + 1 && n < 30; n++) {
- s[n] = styler[start + n];
- s[n + 1] = '\0';
- }
-
- char chAttr = SCE_LUA_IDENTIFIER;
- if (keywords.InList(s)) {
- chAttr = SCE_LUA_WORD;
- } else if (keywords2.InList(s)) {
- chAttr = SCE_LUA_WORD2;
- } else if (keywords3.InList(s)) {
- chAttr = SCE_LUA_WORD3 ;
- } else if (keywords4.InList(s)) {
- chAttr = SCE_LUA_WORD4 ;
- } else if (keywords5.InList(s)) {
- chAttr = SCE_LUA_WORD5 ;
- } else if (keywords6.InList(s)) {
- chAttr = SCE_LUA_WORD6 ;
- }
- styler.ColourTo(end, chAttr);
- state = SCE_LUA_DEFAULT;
- }
- } else if (state == SCE_LUA_LITERALSTRING) {
- if (ch == '[' && chNext == '[') {
- literalString++;
- } else if (ch == ']' && (chPrev == ']') && (--literalString == 0)) {
- styler.ColourTo(i, state);
- state = SCE_LUA_DEFAULT;
- }
- } else if (state == SCE_LUA_PREPROCESSOR) {
- if ((ch == '\r' || ch == '\n') && (chPrev != '\\')) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_DEFAULT;
+ } else if (sc.state == SCE_LUA_IDENTIFIER) {
+ if (!IsAWordChar(sc.ch) || (sc.ch == '.')) {
+ char s[100];
+ sc.GetCurrent(s, sizeof(s));
+ if (keywords.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD);
+ } else if (keywords2.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD2);
+ } else if (keywords3.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD3);
+ } else if (keywords4.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD4);
+ } else if (keywords5.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD5);
+ } else if (keywords6.InList(s)) {
+ sc.ChangeState(SCE_LUA_WORD6);
}
- } else if (state == SCE_LUA_COMMENTLINE) {
- if (ch == '\r' || ch == '\n') {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_DEFAULT;
- }
- } else if (state == SCE_LUA_STRING) {
- if ((ch == '\r' || ch == '\n') && (chPrev != '\\')) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_STRINGEOL;
- } else if (ch == '\\') {
- if (chNext == '\"' || chNext == '\\') {
- i++;
- ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
- }
- } else if (ch == '\"') {
- styler.ColourTo(i, state);
- state = SCE_LUA_DEFAULT;
- i++;
- ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
- }
- } else if (state == SCE_LUA_CHARACTER) {
- if ((ch == '\r' || ch == '\n') && (chPrev != '\\')) {
- styler.ColourTo(i - 1, state);
- state = SCE_LUA_STRINGEOL;
- } else if (ch == '\\') {
- if (chNext == '\'' || chNext == '\\') {
- i++;
- ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
- }
- } else if (ch == '\'') {
- styler.ColourTo(i, state);
- state = SCE_LUA_DEFAULT;
- i++;
- ch = chNext;
- chNext = styler.SafeGetCharAt(i + 1);
+ sc.SetState(SCE_LUA_DEFAULT);
+ }
+
+
+ } else if (sc.state == SCE_LUA_COMMENTLINE ) {
+ if (sc.atLineEnd) {
+ sc.SetState(SCE_LUA_DEFAULT);
+ visibleChars = 0;
+ }
+ } else if (sc.state == SCE_LUA_STRING) {
+ if (sc.ch == '\\') {
+ if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
+ sc.Forward();
}
+ } else if (sc.ch == '\"') {
+ sc.ForwardSetState(SCE_LUA_DEFAULT);
+ } else if (sc.atLineEnd) {
+ sc.ChangeState(SCE_LUA_STRINGEOL);
+ sc.ForwardSetState(SCE_LUA_DEFAULT);
+ visibleChars = 0;
}
-
- if (state == SCE_LUA_DEFAULT) {
- if (ch == '-' && chNext == '-') {
- state = SCE_LUA_COMMENTLINE;
- } else if (ch == '[' && chNext == '[') {
- literalString = 1;
- state = SCE_LUA_LITERALSTRING;
- } else if (ch == '\"') {
- state = SCE_LUA_STRING;
- } else if (ch == '\'') {
- state = SCE_LUA_CHARACTER;
- } else if (ch == '$' && firstChar) {
- state = SCE_LUA_PREPROCESSOR;
- } else if (isdigit(ch) || (ch == '.')) {
- state = SCE_LUA_NUMBER;
- } else if (iswordstart(ch)) {
- state = SCE_LUA_WORD;
- } else if (isLuaOperator(ch)) {
- styler.ColourTo(i, SCE_LUA_OPERATOR);
+
+ } else if (sc.state == SCE_LUA_CHARACTER) {
+ if (sc.ch == '\\') {
+ if (sc.chNext == '\"' || sc.chNext == '\'' || sc.chNext == '\\') {
+ sc.Forward();
}
+ } else if (sc.ch == '\'') {
+ sc.ForwardSetState(SCE_LUA_DEFAULT);
+ } else if (sc.atLineEnd) {
+ sc.ChangeState(SCE_LUA_STRINGEOL);
+ sc.ForwardSetState(SCE_LUA_DEFAULT);
+ visibleChars = 0;
+ }
+ } else if (sc.state == SCE_LUA_LITERALSTRING) {
+ if (sc.chPrev == '[' && sc.ch == '[' && literalStringFlag != 1) {
+ literalString++;
+ literalStringFlag = 1;
+ }
+ else if (sc.chPrev == ']' && sc.ch == ']' && literalStringFlag != 2 ) {
+ if((--literalString == 1))
+ sc.ForwardSetState(SCE_LUA_DEFAULT);
+ literalStringFlag = 2;
}
+ else literalStringFlag = 0;
+ }
+ // Determine if a new state should be entered.
+ if (sc.state == SCE_LUA_DEFAULT) {
+ if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
+ sc.SetState(SCE_LUA_NUMBER);
+ } else if (IsAWordStart(sc.ch) || (sc.ch == '@')) {
+ sc.SetState(SCE_LUA_IDENTIFIER);
+ } else if (sc.ch == '\"') {
+ sc.SetState(SCE_LUA_STRING);
+ } else if (sc.ch == '\'') {
+ sc.SetState(SCE_LUA_CHARACTER);
+ } else if (sc.ch == '[' && sc.chNext == '[') {
+ sc.SetState(SCE_LUA_LITERALSTRING);
+ literalString = 1;
+ } else if (sc.ch == '-' && sc.chNext == '-') {
+ sc.SetState(SCE_LUA_COMMENTLINE);
+ } else if (isLuaOperator(static_cast<char>(sc.ch))) {
+ sc.SetState(SCE_LUA_OPERATOR);
+ }
+ }
+
+ if (sc.atLineEnd) {
+ // Reset states to begining of colourise so no surprises
+ // if different sets of lines lexed.
+ chPrevNonWhite = ' ';
+ visibleChars = 0;
+ }
+ if (!IsASpace(sc.ch)) {
+ chPrevNonWhite = sc.ch;
+ visibleChars++;
}
- chPrev = ch;
- firstChar = (ch == '\r' || ch == '\n');
}
- styler.ColourTo(lengthDoc - 1, state);
+ sc.Complete();
}
@@ -252,21 +216,23 @@ static void FoldLuaDoc(unsigned int startPos, int length, int /* initStyle */, W
s[j] = styler[i + j];
s[j + 1] = '\0';
}
-
+
if ((strcmp(s, "if") == 0) || (strcmp(s, "do") == 0)
- || (strcmp(s, "function") == 0))
+ || (strcmp(s, "function") == 0))
levelCurrent++;
if ((strcmp(s, "end") == 0) || (strcmp(s, "elseif") == 0))
levelCurrent--;
-
+
}
- } else if (style == SCE_LUA_OPERATOR) {
- if (ch == '{' || ch == '(')
+ }
+ else if (style == SCE_LUA_OPERATOR)
+ {
+ if(ch == '{' || ch == '(')
levelCurrent++;
- else if (ch == '}' || ch == ')')
+ else if(ch == '}' || ch == ')')
levelCurrent--;
}
-
+
if (atEOL) {
int lev = levelPrev;
if (visibleChars == 0 && foldCompact)
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-30 14:34:18 +0000