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[comments] Add a minimalist approach to skip Doxygen comment markers

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This commit is contained in:
Fangrui Song 2017-12-30 10:56:34 -08:00
parent 829b2fe18c
commit 947a80ecc8
1 changed files with 33 additions and 6 deletions
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39
src/clang_cursor.cc
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@ -198,11 +198,12 @@ optional<std::string> ClangCursor::get_comments() const {
// Get associated comment text.
CXString cx_raw = clang_Cursor_getRawCommentText(cx_cursor);
// The first line starts with a comment marker, but the rest needs
// un-indenting.
std::string unindented;
int pad = -1;
std::string ret;
for (const char* p = clang_getCString(cx_raw); *p;) {
auto skip = start_column - 1;
// The first line starts with a comment marker, but the rest needs
// un-indenting.
unsigned skip = start_column - 1;
for (; skip > 0 && (*p == ' ' || *p == '\t'); p++)
skip--;
const char* q = p;
@ -210,11 +211,37 @@ optional<std::string> ClangCursor::get_comments() const {
q++;
if (*q)
q++;
unindented.insert(unindented.end(), p, q);
// A minimalist approach to skip Doxygen comment markers.
// See https://www.stack.nl/~dimitri/doxygen/manual/docblocks.html
if (pad < 0) {
// First line, detect the length of comment marker and put into |pad|
const char* begin = p;
while (*p == '/' || *p == '*')
p++;
if (*p == '<' || *p == '!')
p++;
if (*p == ' ')
p++;
pad = int(p - begin);
} else {
// Other lines, skip |pad| bytes
int prefix = pad;
while (prefix > 0 &&
(*p == ' ' || *p == '/' || *p == '*' || *p == '<' || *p == '!'))
prefix--, p++;
}
ret.insert(ret.end(), p, q);
p = q;
}
clang_disposeString(cx_raw);
return unindented;
while (ret.size() && isspace(ret.back()))
ret.pop_back();
if (ret.size() >= 2 && ret.compare(ret.size() - 2, 2, "*/") == 0) {
ret.resize(ret.size() - 2);
while (ret.size() && isspace(ret.back()))
ret.pop_back();
}
return ret;
}
std::string ClangCursor::ToString() const {