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lint: Use early exit/continue

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This commit is contained in:
Kurtis Rader 2016-10-30 16:04:13 -07:00
parent 6c3900ff64
commit 26c1430e82
1 changed files with 26 additions and 25 deletions
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51
src/exec.cpp
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@ -1174,37 +1174,38 @@ static int exec_subshell_internal(const wcstring &cmd, wcstring_list_t *lst,
// If the caller asked us to preserve the exit status, restore the old status. Otherwise set the
// status of the subcommand.
proc_set_last_status(apply_exit_status ? subcommand_status : prev_status);
is_subshell = prev_subshell;
if (lst != NULL && io_buffer.get() != NULL) {
const char *begin = io_buffer->out_buffer_ptr();
const char *end = begin + io_buffer->out_buffer_size();
if (split_output) {
const char *cursor = begin;
while (cursor < end) {
// Look for the next separator.
const char *stop = (const char *)memchr(cursor, '\n', end - cursor);
const bool hit_separator = (stop != NULL);
if (!hit_separator) {
// If it's not found, just use the end.
stop = end;
}
// Stop now points at the first character we do not want to copy.
const wcstring wc = str2wcstring(cursor, stop - cursor);
lst->push_back(wc);
if (lst == NULL || io_buffer.get() == NULL) {
return subcommand_status;
}
// If we hit a separator, skip over it; otherwise we're at the end.
cursor = stop + (hit_separator ? 1 : 0);
const char *begin = io_buffer->out_buffer_ptr();
const char *end = begin + io_buffer->out_buffer_size();
if (split_output) {
const char *cursor = begin;
while (cursor < end) {
// Look for the next separator.
const char *stop = (const char *)memchr(cursor, '\n', end - cursor);
const bool hit_separator = (stop != NULL);
if (!hit_separator) {
// If it's not found, just use the end.
stop = end;
}
} else {
// we're not splitting output, but we still want to trim off a trailing newline.
if (end != begin && end[-1] == '\n') {
--end;
}
const wcstring wc = str2wcstring(begin, end - begin);
// Stop now points at the first character we do not want to copy.
const wcstring wc = str2wcstring(cursor, stop - cursor);
lst->push_back(wc);
// If we hit a separator, skip over it; otherwise we're at the end.
cursor = stop + (hit_separator ? 1 : 0);
}
} else {
// We're not splitting output, but we still want to trim off a trailing newline.
if (end != begin && end[-1] == '\n') {
--end;
}
const wcstring wc = str2wcstring(begin, end - begin);
lst->push_back(wc);
}
return subcommand_status;