bool
clang::analyze_format_string::ParseVectorModifier(FormatStringHandler &H,
FormatSpecifier &FS,
const char *&I,
const char *E,
const LangOptions &LO) {
if (!LO.OpenCL)
return false;
const char *Start = I;
if (*I == 'v') {
++I;
if (I == E) {
H.HandleIncompleteSpecifier(Start, E - Start);
return true;
}
OptionalAmount NumElts = ParseAmount(I, E);
if (NumElts.getHowSpecified() != OptionalAmount::Constant) {
H.HandleIncompleteSpecifier(Start, E - Start);
return true;
}
FS.setVectorNumElts(NumElts);
}
return false;
}
static bool ParsePrecision(FormatStringHandler &H, PrintfSpecifier &FS,
const char *Start, const char *&Beg, const char *E,
unsigned *argIndex) {
if (argIndex) {
FS.setPrecision(ParseNonPositionAmount(Beg, E, *argIndex));
} else {
const OptionalAmount Amt = ParsePositionAmount(H, Start, Beg, E,
analyze_format_string::PrecisionPos);
if (Amt.isInvalid())
return true;
FS.setPrecision(Amt);
}
return false;
}
bool
clang::analyze_format_string::ParseFieldWidth(FormatStringHandler &H,
FormatSpecifier &CS,
const char *Start,
const char *&Beg, const char *E,
unsigned *argIndex) {
// FIXME: Support negative field widths.
if (argIndex) {
CS.setFieldWidth(ParseNonPositionAmount(Beg, E, *argIndex));
}
else {
const OptionalAmount Amt =
ParsePositionAmount(H, Start, Beg, E,
analyze_format_string::FieldWidthPos);
if (Amt.isInvalid())
return true;
CS.setFieldWidth(Amt);
}
return false;
}