static void parseFunction (const unsigned char *line)
{
vString *name = vStringNew ();
/* boolean inFunction = FALSE; */
int scope;
const unsigned char *cp = line + 1;
if ((int) *++cp == 'n' && (int) *++cp == 'c' &&
(int) *++cp == 't' && (int) *++cp == 'i' &&
(int) *++cp == 'o' && (int) *++cp == 'n')
++cp;
if ((int) *cp == '!')
++cp;
if (isspace ((int) *cp))
{
while (*cp && isspace ((int) *cp))
++cp;
if (*cp)
{
cp = skipPrefix (cp, &scope);
if (isupper ((int) *cp) ||
scope == 's' || /* script scope */
scope == '<' || /* script scope */
scope == 'd' || /* dictionary */
scope == 'a') /* autoload */
{
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_' || *cp == '.' || *cp == '#');
vStringTerminate (name);
makeSimpleTag (name, VimKinds, K_FUNCTION);
vStringClear (name);
}
}
}
/* TODO - update struct to indicate inside function */
while ((line = readVimLine ()) != NULL)
{
/*
* Vim7 added the for/endfo[r] construct, so we must first
* check for an "endfo", before a "endf"
*/
if ( (!strncmp ((const char*) line, "endfo", (size_t) 5) == 0) &&
(strncmp ((const char*) line, "endf", (size_t) 4) == 0) )
break;
/* TODO - call parseVimLine */
}
vStringDelete (name);
}
path remove_prefix(const path& pth, const path& prefix) {
path::const_iterator it;
if (!skipPrefix(pth, prefix, it)) {
throw filesystem_error(
"Path does not start with prefix",
pth, prefix,
bsys::errc::make_error_code(bsys::errc::invalid_argument));
}
path p;
for (; it != pth.end(); ++it) {
p /= *it;
}
return p;
}
static void parseFunction (const unsigned char *line)
{
vString *name = vStringNew ();
/* boolean inFunction = FALSE; */
int scope;
const unsigned char *cp = line;
if ((int) *cp == '!')
++cp;
if (isspace ((int) *cp))
{
while (*cp && isspace ((int) *cp))
++cp;
if (*cp)
{
cp = skipPrefix (cp, &scope);
if (isupper ((int) *cp) ||
scope == 's' || /* script scope */
scope == '<' || /* script scope */
scope == 'd' || /* dictionary */
scope == 'a') /* autoload */
{
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_' || *cp == '.' || *cp == '#');
vStringTerminate (name);
makeSimpleTag (name, VimKinds, K_FUNCTION);
vStringClear (name);
}
}
}
/* TODO - update struct to indicate inside function */
while ((line = readVimLine ()) != NULL)
{
if (wordMatchLen (line, "endfunction", 4))
break;
parseVimLine(line, TRUE);
}
vStringDelete (name);
}
static void parseFunction (const unsigned char *line)
{
vString *name = vStringNew ();
/* boolean inFunction = FALSE; */
int scope;
const unsigned char *cp = line;
int index = CORK_NIL;
if (*cp == '!')
++cp;
if (isspace ((int) *cp))
{
while (*cp && isspace ((int) *cp))
++cp;
if (*cp)
{
cp = skipPrefix (cp, &scope);
if (isupper ((int) *cp) ||
scope == 's' || /* script scope */
scope == '<' || /* script scope */
scope == 'd' || /* dictionary */
scope == 'a') /* autoload */
{
char prefix[3] = { [0] = (char)scope, [1] = ':', [2] = '\0' };
if (scope == 's')
vStringCatS (name, prefix);
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_' || *cp == '.' || *cp == '#');
vStringTerminate (name);
index = makeSimpleTag (name, VimKinds, K_FUNCTION);
vStringClear (name);
}
}
}
bool starts_with(const path& pth, const path& prefix) {
path::const_iterator it;
return skipPrefix(pth, prefix, it);
}
static void findVimTags (void)
{
vString *name = vStringNew ();
const unsigned char *line;
boolean inFunction = FALSE;
int scope;
while ((line = fileReadLine ()) != NULL)
{
while (isspace ((int) *line))
++line;
if ((int) *line == '"')
continue; /* skip comment */
if (strncmp ((const char*) line, "fu", (size_t) 2) == 0)
{
const unsigned char *cp = line + 1;
inFunction = TRUE;
if ((int) *++cp == 'n' && (int) *++cp == 'c' &&
(int) *++cp == 't' && (int) *++cp == 'i' &&
(int) *++cp == 'o' && (int) *++cp == 'n')
++cp;
if ((int) *cp == '!')
++cp;
if (isspace ((int) *cp))
{
while (isspace ((int) *cp))
++cp;
cp = skipPrefix (cp, &scope);
if (isupper ((int) *cp) || scope == 's' || scope == '<')
{
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_');
vStringTerminate (name);
makeSimpleTag (name, VimKinds, K_FUNCTION);
vStringClear (name);
}
}
}
if (strncmp ((const char*) line, "aug", (size_t) 3) == 0)
{
/* Found Autocommand Group (augroup) */
const unsigned char *cp = line + 2;
if ((int) *++cp == 'r' && (int) *++cp == 'o' &&
(int) *++cp == 'u' && (int) *++cp == 'p')
++cp;
if (isspace ((int) *cp))
{
while (isspace ((int) *cp))
++cp;
if (strncasecmp ((const char*) cp, "end", (size_t) 3) != 0)
{
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_');
vStringTerminate (name);
makeSimpleTag (name, VimKinds, K_AUGROUP);
vStringClear (name);
}
}
}
if (strncmp ((const char*) line, "endf", (size_t) 4) == 0)
inFunction = FALSE;
if (!inFunction &&
strncmp ((const char*) line, "let", (size_t) 3) == 0)
{
/* we've found a variable declared outside of a function!! */
const unsigned char *cp = line + 3;
/* get the name */
if (isspace ((int) *cp))
{
/* deal with spaces, $, @ and & */
while (!isalnum ((int) *cp))
++cp;
cp = skipPrefix (cp, &scope);
do
{
vStringPut (name, (int) *cp);
++cp;
} while (isalnum ((int) *cp) || *cp == '_');
vStringTerminate (name);
makeSimpleTag (name, VimKinds, K_VARIABLE);
vStringClear (name);
}
}
}
vStringDelete (name);
}
int IndexCursor::skipToNextKey( const BSONObj ¤tKey ) {
int skipPrefixIndex = _boundsIterator->advance( currentKey );
if ( skipPrefixIndex == -2 ) {
// We are done iterating completely.
_ok = false;
return -2;
}
else if ( skipPrefixIndex == -1 ) {
// We should skip nothing.
return -1;
}
// We should skip to a further key, efficiently.
//
// If after(), skip to the first key greater/less than the key comprised
// of the first "skipPrefixIndex" elements of currentKey, and the rest
// set to MaxKey/MinKey for direction > 0 and direction < 0 respectively.
// eg: skipPrefixIndex = 1, currKey {a:1, b:2, c:1}, direction > 0, so we skip
// to the first key greater than {a:1, b:maxkey, c:maxkey}
//
// If after() is false, we use the same key prefix but set the reamining
// elements to the elements described by cmp(), in order.
// eg: skipPrefixIndex = 1, currKey {a:1, b:2, c:1}) and cmp() [b:5, c:11]
// so we use skip to {a:1, b:5, c:11}, also noting direction.
if ( _boundsIterator->after() ) {
skipPrefix( currentKey, skipPrefixIndex );
} else {
BSONObjBuilder b(currentKey.objsize());
BSONObjIterator it = currentKey.begin();
const vector<const BSONElement *> &endKeys = _boundsIterator->cmp();
const int nFields = currentKey.nFields();
for ( int i = 0; i < nFields; i++ ) {
if ( i < skipPrefixIndex ) {
verify( it.more() );
b.append( it.next() );
} else {
b.appendAs( *endKeys[i] , "" );
}
}
findKey( b.done() );
// Skip passed key prefixes that are not supposed to be inclusive
// as described by _boundsIterator->inc() and endKeys
//
// We'll spend at worst nFields^2 time ensuring all key elements
// are properly set if all the inclusive bits are false and we
// keep landing on keys where the ith element of curr == endkeys[i].
//
// This complexity is usually ok, since this skipping is supposed to
// save us from really big linear scans across the key space in
// some pathological cases. It's not clear whether or not small
// cases are hurt too badly by this algorithm.
bool allInclusive = true;
const vector<bool> &inclusive = _boundsIterator->inc();
for ( int i = 0; i < nFields; i++ ) {
if ( !inclusive[i] ) {
allInclusive = false;
break;
}
}
again: while ( !allInclusive && ok() ) {
BSONObj key = _currKey;
it = key.begin();
dassert( nFields == key.nFields() );
for ( int i = 0; i < nFields; i++ ) {
const BSONElement e = it.next();
if ( i >= skipPrefixIndex && !inclusive[i] && e.valuesEqual(*endKeys[i]) ) {
// The ith element equals the ith endKey but it's not supposed to be inclusive.
// Skipping to the next value for the ith element involves skipping a prefix
// with i + 1 elements.
skipPrefix( key, i + 1 );
goto again;
}
}
break;
}
}
return 0;
}
