in ext/scintilla/lexers/LexRebol.cxx [69:271]
static void ColouriseRebolDoc(Sci_PositionU startPos, Sci_Position 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];
WordList &keywords7 = *keywordlists[6];
WordList &keywords8 = *keywordlists[7];
Sci_Position currentLine = styler.GetLine(startPos);
// Initialize the braced string {.. { ... } ..} nesting level, if we are inside such a string.
int stringLevel = 0;
if (initStyle == SCE_REBOL_BRACEDSTRING || initStyle == SCE_REBOL_COMMENTBLOCK) {
stringLevel = styler.GetLineState(currentLine - 1);
}
bool blockComment = initStyle == SCE_REBOL_COMMENTBLOCK;
int dotCount = 0;
// Do not leak onto next line
if (initStyle == SCE_REBOL_COMMENTLINE) {
initStyle = SCE_REBOL_DEFAULT;
}
StyleContext sc(startPos, length, initStyle, styler);
if (startPos == 0) {
sc.SetState(SCE_REBOL_PREFACE);
}
for (; sc.More(); sc.Forward()) {
//--- What to do at line end ?
if (sc.atLineEnd) {
// Can be either inside a {} string or simply at eol
if (sc.state != SCE_REBOL_BRACEDSTRING && sc.state != SCE_REBOL_COMMENTBLOCK &&
sc.state != SCE_REBOL_BINARY && sc.state != SCE_REBOL_PREFACE)
sc.SetState(SCE_REBOL_DEFAULT);
// Update the line state, so it can be seen by next line
currentLine = styler.GetLine(sc.currentPos);
switch (sc.state) {
case SCE_REBOL_BRACEDSTRING:
case SCE_REBOL_COMMENTBLOCK:
// Inside a braced string, we set the line state
styler.SetLineState(currentLine, stringLevel);
break;
default:
// Reset the line state
styler.SetLineState(currentLine, 0);
break;
}
// continue with next char
continue;
}
//--- What to do on white-space ?
if (IsASpaceOrTab(sc.ch))
{
// Return to default if any of these states
if (sc.state == SCE_REBOL_OPERATOR || sc.state == SCE_REBOL_CHARACTER ||
sc.state == SCE_REBOL_NUMBER || sc.state == SCE_REBOL_PAIR ||
sc.state == SCE_REBOL_TUPLE || sc.state == SCE_REBOL_FILE ||
sc.state == SCE_REBOL_DATE || sc.state == SCE_REBOL_TIME ||
sc.state == SCE_REBOL_MONEY || sc.state == SCE_REBOL_ISSUE ||
sc.state == SCE_REBOL_URL || sc.state == SCE_REBOL_EMAIL) {
sc.SetState(SCE_REBOL_DEFAULT);
}
}
//--- Specialize state ?
// URL, Email look like identifier
if (sc.state == SCE_REBOL_IDENTIFIER)
{
if (sc.ch == ':' && !IsASpace(sc.chNext)) {
sc.ChangeState(SCE_REBOL_URL);
} else if (sc.ch == '@') {
sc.ChangeState(SCE_REBOL_EMAIL);
} else if (sc.ch == '$') {
sc.ChangeState(SCE_REBOL_MONEY);
}
}
// Words look like identifiers
if (sc.state == SCE_REBOL_IDENTIFIER || (sc.state >= SCE_REBOL_WORD && sc.state <= SCE_REBOL_WORD8)) {
// Keywords ?
if (!IsAWordChar(sc.ch) || sc.Match('/')) {
char s[100];
sc.GetCurrentLowered(s, sizeof(s));
blockComment = strcmp(s, "comment") == 0;
if (keywords8.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD8);
} else if (keywords7.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD7);
} else if (keywords6.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD6);
} else if (keywords5.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD5);
} else if (keywords4.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD4);
} else if (keywords3.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD3);
} else if (keywords2.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD2);
} else if (keywords.InList(s)) {
sc.ChangeState(SCE_REBOL_WORD);
}
// Keep same style if there are refinements
if (!sc.Match('/')) {
sc.SetState(SCE_REBOL_DEFAULT);
}
}
// special numbers
} else if (sc.state == SCE_REBOL_NUMBER) {
switch (sc.ch) {
case 'x': sc.ChangeState(SCE_REBOL_PAIR);
break;
case ':': sc.ChangeState(SCE_REBOL_TIME);
break;
case '-':
case '/': sc.ChangeState(SCE_REBOL_DATE);
break;
case '.': if (++dotCount >= 2) sc.ChangeState(SCE_REBOL_TUPLE);
break;
}
}
//--- Determine if the current state should terminate
if (sc.state == SCE_REBOL_QUOTEDSTRING || sc.state == SCE_REBOL_CHARACTER) {
if (sc.ch == '^' && sc.chNext == '\"') {
sc.Forward();
} else if (sc.ch == '\"') {
sc.ForwardSetState(SCE_REBOL_DEFAULT);
}
} else if (sc.state == SCE_REBOL_BRACEDSTRING || sc.state == SCE_REBOL_COMMENTBLOCK) {
if (sc.ch == '}') {
if (--stringLevel == 0) {
sc.ForwardSetState(SCE_REBOL_DEFAULT);
}
} else if (sc.ch == '{') {
stringLevel++;
}
} else if (sc.state == SCE_REBOL_BINARY) {
if (sc.ch == '}') {
sc.ForwardSetState(SCE_REBOL_DEFAULT);
}
} else if (sc.state == SCE_REBOL_TAG) {
if (sc.ch == '>') {
sc.ForwardSetState(SCE_REBOL_DEFAULT);
}
} else if (sc.state == SCE_REBOL_PREFACE) {
if (sc.MatchIgnoreCase("rebol"))
{
int i;
for (i=5; IsASpaceOrTab(styler.SafeGetCharAt(sc.currentPos+i, 0)); i++);
if (sc.GetRelative(i) == '[')
sc.SetState(SCE_REBOL_DEFAULT);
}
}
//--- Parens and bracket changes to default style when the current is a number
if (sc.state == SCE_REBOL_NUMBER || sc.state == SCE_REBOL_PAIR || sc.state == SCE_REBOL_TUPLE ||
sc.state == SCE_REBOL_MONEY || sc.state == SCE_REBOL_ISSUE || sc.state == SCE_REBOL_EMAIL ||
sc.state == SCE_REBOL_URL || sc.state == SCE_REBOL_DATE || sc.state == SCE_REBOL_TIME) {
if (sc.ch == '(' || sc.ch == '[' || sc.ch == ')' || sc.ch == ']') {
sc.SetState(SCE_REBOL_DEFAULT);
}
}
//--- Determine if a new state should be entered.
if (sc.state == SCE_REBOL_DEFAULT) {
if (IsAnOperator(sc.ch, sc.chNext, sc.GetRelative(2))) {
sc.SetState(SCE_REBOL_OPERATOR);
} else if (IsBinaryStart(sc.ch, sc.chNext, sc.GetRelative(2), sc.GetRelative(3))) {
sc.SetState(SCE_REBOL_BINARY);
} else if (IsAWordStart(sc.ch, sc.chNext)) {
sc.SetState(SCE_REBOL_IDENTIFIER);
} else if (IsADigit(sc.ch) || sc.ch == '+' || sc.ch == '-' || /*Decimal*/ sc.ch == '.' || sc.ch == ',') {
dotCount = 0;
sc.SetState(SCE_REBOL_NUMBER);
} else if (sc.ch == '\"') {
sc.SetState(SCE_REBOL_QUOTEDSTRING);
} else if (sc.ch == '{') {
sc.SetState(blockComment ? SCE_REBOL_COMMENTBLOCK : SCE_REBOL_BRACEDSTRING);
++stringLevel;
} else if (sc.ch == ';') {
sc.SetState(SCE_REBOL_COMMENTLINE);
} else if (sc.ch == '$') {
sc.SetState(SCE_REBOL_MONEY);
} else if (sc.ch == '%') {
sc.SetState(SCE_REBOL_FILE);
} else if (sc.ch == '<') {
sc.SetState(SCE_REBOL_TAG);
} else if (sc.ch == '#' && sc.chNext == '"') {
sc.SetState(SCE_REBOL_CHARACTER);
sc.Forward();
} else if (sc.ch == '#' && sc.chNext != '"' && sc.chNext != '{' ) {
sc.SetState(SCE_REBOL_ISSUE);
}
}
}
sc.Complete();
}