dima/exercism-solutions
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

word count: state enum is removed

Browse source
This commit is contained in:
Dmitry Kokorin 2016-02-22 00:33:18 +03:00
parent fb546d1f29
commit 6f5bbd1460
1 changed files with 16 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

34
cpp/word-count/word_count.cpp
View file

@ -12,47 +12,26 @@ Words words(const string &str, const locale &loc)
{
Words result;
enum {
InsideWord,
OutsideWord
} state(OutsideWord);
string::const_iterator begin, end, i;
i = begin = end = str.begin();
i = end = str.begin();
begin = str.end();
for (; i != str.end(); ++i) {
bool is_alpha_or_digit = isalpha(*i, loc) || isdigit(*i, loc);
bool is_word_char = is_alpha_or_digit || *i == '\'';
switch (state) {
case OutsideWord:
if (is_alpha_or_digit) {
state = InsideWord;
if (begin > end)
begin = i;
end = next(i);
}
break;
case InsideWord:
if (is_alpha_or_digit) {
end = next(i);
}
if (!is_word_char || next(i) == str.end()) {
state = OutsideWord;
if (begin != end) {
if (begin < end) {
string word;
word.reserve(distance(begin, end));
@ -60,10 +39,9 @@ Words words(const string &str, const locale &loc)
[=](char c){return tolower(c, loc);});
result[word]++;
}
}
break;
begin = str.end();
}
}
}