in ext/scintilla/lexers/LexFortran.cxx [60:255]
static void ColouriseFortranDoc(Sci_PositionU startPos, Sci_Position length, int initStyle,
WordList *keywordlists[], Accessor &styler, bool isFixFormat) {
WordList &keywords = *keywordlists[0];
WordList &keywords2 = *keywordlists[1];
WordList &keywords3 = *keywordlists[2];
/***************************************/
Sci_Position posLineStart = 0;
int numNonBlank = 0, prevState = 0;
Sci_Position endPos = startPos + length;
/***************************************/
// backtrack to the nearest keyword
while ((startPos > 1) && (styler.StyleAt(startPos) != SCE_F_WORD)) {
startPos--;
}
startPos = styler.LineStart(styler.GetLine(startPos));
initStyle = styler.StyleAt(startPos - 1);
StyleContext sc(startPos, endPos-startPos, initStyle, styler);
/***************************************/
for (; sc.More(); sc.Forward()) {
// remember the start position of the line
if (sc.atLineStart) {
posLineStart = sc.currentPos;
numNonBlank = 0;
sc.SetState(SCE_F_DEFAULT);
}
if (!IsASpaceOrTab(sc.ch)) numNonBlank ++;
/***********************************************/
// Handle the fix format generically
Sci_Position toLineStart = sc.currentPos - posLineStart;
if (isFixFormat && (toLineStart < 6 || toLineStart >= 72)) {
if ((toLineStart == 0 && (tolower(sc.ch) == 'c' || sc.ch == '*')) || sc.ch == '!') {
if (sc.MatchIgnoreCase("cdec$") || sc.MatchIgnoreCase("*dec$") || sc.MatchIgnoreCase("!dec$") ||
sc.MatchIgnoreCase("cdir$") || sc.MatchIgnoreCase("*dir$") || sc.MatchIgnoreCase("!dir$") ||
sc.MatchIgnoreCase("cms$") || sc.MatchIgnoreCase("*ms$") || sc.MatchIgnoreCase("!ms$") ||
sc.chNext == '$') {
sc.SetState(SCE_F_PREPROCESSOR);
} else {
sc.SetState(SCE_F_COMMENT);
}
while (!sc.atLineEnd && sc.More()) sc.Forward(); // Until line end
} else if (toLineStart >= 72) {
sc.SetState(SCE_F_COMMENT);
while (!sc.atLineEnd && sc.More()) sc.Forward(); // Until line end
} else if (toLineStart < 5) {
if (IsADigit(sc.ch))
sc.SetState(SCE_F_LABEL);
else
sc.SetState(SCE_F_DEFAULT);
} else if (toLineStart == 5) {
//if (!IsASpace(sc.ch) && sc.ch != '0') {
if (sc.ch != '\r' && sc.ch != '\n') {
sc.SetState(SCE_F_CONTINUATION);
if (!IsASpace(sc.ch) && sc.ch != '0')
sc.ForwardSetState(prevState);
} else
sc.SetState(SCE_F_DEFAULT);
}
continue;
}
/***************************************/
// Handle line continuation generically.
if (!isFixFormat && sc.ch == '&' && sc.state != SCE_F_COMMENT) {
char chTemp = ' ';
Sci_Position j = 1;
while (IsABlank(chTemp) && j<132) {
chTemp = static_cast<char>(sc.GetRelative(j));
j++;
}
if (chTemp == '!') {
sc.SetState(SCE_F_CONTINUATION);
if (sc.chNext == '!') sc.ForwardSetState(SCE_F_COMMENT);
} else if (chTemp == '\r' || chTemp == '\n') {
int currentState = sc.state;
sc.SetState(SCE_F_CONTINUATION);
sc.ForwardSetState(SCE_F_DEFAULT);
while (IsASpace(sc.ch) && sc.More()) {
sc.Forward();
if (sc.atLineStart) numNonBlank = 0;
if (!IsASpaceOrTab(sc.ch)) numNonBlank ++;
}
if (sc.ch == '&') {
sc.SetState(SCE_F_CONTINUATION);
sc.Forward();
}
sc.SetState(currentState);
}
}
/***************************************/
// Hanndle preprocessor directives
if (sc.ch == '#' && numNonBlank == 1)
{
sc.SetState(SCE_F_PREPROCESSOR);
while (!sc.atLineEnd && sc.More())
sc.Forward(); // Until line end
}
/***************************************/
// Determine if the current state should terminate.
if (sc.state == SCE_F_OPERATOR) {
sc.SetState(SCE_F_DEFAULT);
} else if (sc.state == SCE_F_NUMBER) {
if (!(IsAWordChar(sc.ch) || sc.ch=='\'' || sc.ch=='\"' || sc.ch=='.')) {
sc.SetState(SCE_F_DEFAULT);
}
} else if (sc.state == SCE_F_IDENTIFIER) {
if (!IsAWordChar(sc.ch) || (sc.ch == '%')) {
char s[100];
sc.GetCurrentLowered(s, sizeof(s));
if (keywords.InList(s)) {
sc.ChangeState(SCE_F_WORD);
} else if (keywords2.InList(s)) {
sc.ChangeState(SCE_F_WORD2);
} else if (keywords3.InList(s)) {
sc.ChangeState(SCE_F_WORD3);
}
sc.SetState(SCE_F_DEFAULT);
}
} else if (sc.state == SCE_F_COMMENT || sc.state == SCE_F_PREPROCESSOR) {
if (sc.ch == '\r' || sc.ch == '\n') {
sc.SetState(SCE_F_DEFAULT);
}
} else if (sc.state == SCE_F_STRING1) {
prevState = sc.state;
if (sc.ch == '\'') {
if (sc.chNext == '\'') {
sc.Forward();
} else {
sc.ForwardSetState(SCE_F_DEFAULT);
prevState = SCE_F_DEFAULT;
}
} else if (sc.atLineEnd) {
sc.ChangeState(SCE_F_STRINGEOL);
sc.ForwardSetState(SCE_F_DEFAULT);
}
} else if (sc.state == SCE_F_STRING2) {
prevState = sc.state;
if (sc.atLineEnd) {
sc.ChangeState(SCE_F_STRINGEOL);
sc.ForwardSetState(SCE_F_DEFAULT);
} else if (sc.ch == '\"') {
if (sc.chNext == '\"') {
sc.Forward();
} else {
sc.ForwardSetState(SCE_F_DEFAULT);
prevState = SCE_F_DEFAULT;
}
}
} else if (sc.state == SCE_F_OPERATOR2) {
if (sc.ch == '.') {
sc.ForwardSetState(SCE_F_DEFAULT);
}
} else if (sc.state == SCE_F_CONTINUATION) {
sc.SetState(SCE_F_DEFAULT);
} else if (sc.state == SCE_F_LABEL) {
if (!IsADigit(sc.ch)) {
sc.SetState(SCE_F_DEFAULT);
} else {
if (isFixFormat && sc.currentPos-posLineStart > 4)
sc.SetState(SCE_F_DEFAULT);
else if (numNonBlank > 5)
sc.SetState(SCE_F_DEFAULT);
}
}
/***************************************/
// Determine if a new state should be entered.
if (sc.state == SCE_F_DEFAULT) {
if (sc.ch == '!') {
if (sc.MatchIgnoreCase("!dec$") || sc.MatchIgnoreCase("!dir$") ||
sc.MatchIgnoreCase("!ms$") || sc.chNext == '$') {
sc.SetState(SCE_F_PREPROCESSOR);
} else {
sc.SetState(SCE_F_COMMENT);
}
} else if ((!isFixFormat) && IsADigit(sc.ch) && numNonBlank == 1) {
sc.SetState(SCE_F_LABEL);
} else if (IsADigit(sc.ch) || (sc.ch == '.' && IsADigit(sc.chNext))) {
sc.SetState(SCE_F_NUMBER);
} else if ((tolower(sc.ch) == 'b' || tolower(sc.ch) == 'o' ||
tolower(sc.ch) == 'z') && (sc.chNext == '\"' || sc.chNext == '\'')) {
sc.SetState(SCE_F_NUMBER);
sc.Forward();
} else if (sc.ch == '.' && isalpha(sc.chNext)) {
sc.SetState(SCE_F_OPERATOR2);
} else if (IsAWordStart(sc.ch)) {
sc.SetState(SCE_F_IDENTIFIER);
} else if (sc.ch == '\"') {
sc.SetState(SCE_F_STRING2);
} else if (sc.ch == '\'') {
sc.SetState(SCE_F_STRING1);
} else if (isoperator(static_cast<char>(sc.ch))) {
sc.SetState(SCE_F_OPERATOR);
}
}
}
sc.Complete();
}