static int findWord(const char *zText,
const char **pzWordStart, const char **pzWordEnd){
int r;
while( ascii_isspace(*zText) ){
zText++;
}
*pzWordStart = zText;
while( ascii_isalnum(*zText) || *zText=='_' ){
zText++;
}
r = zText>*pzWordStart;
*pzWordEnd = zText;
return r;
}
// Convert a file name into a valid identifier.
string FilenameIdentifier(const string& filename) {
string result;
for (unsigned int i = 0; i < filename.size(); i++) {
if (ascii_isalnum(filename[i])) {
result.push_back(filename[i]);
} else {
// Not alphanumeric. To avoid any possibility of name conflicts we
// use the hex code for the character.
result.push_back('_');
char buffer[kFastToBufferSize];
result.append(FastHexToBuffer(static_cast<uint8_t>(filename[i]), buffer));
}
}
return result;
}