This pass only targets commonly used standard types.
s/(\(\s*\(\(un\)\?signed\|int\|char\|short\|long\|float\|double\|s\?size_t\|\(u\?int[[:digit:]]\+_t\)\)\)\s*)\s*(/static_cast<\1>(/g
C casts do not require parentheses. C++ casts require grouping around
the target. Prepare for conversion to C++ casts by adding otherwise
unnecessary parentheses around the target of simple C casts.
This pass does not attempt to process expressions that involve
any subexpression that can nest arbitrarily, such as parentheses or
brackets. It also works only on commonly used standard types.
(int) a->b; // changed
(int) a[b]; // not changed
s/\((\s*\(\(un\)\?signed\|int\|char\|short\|long\|float\|double\|s\?size_t\|\(u\?int[[:digit:]]\+_t\)\)\s*\**\s*)\s*\)\([&+-]\?\)\([[:alnum:]_.]\+\s*->\s*\)*\([[:alnum:]_.]\+\)\(\s*\([];+>)*\/^%,|&<>]\)\|$\|\(\s*-\s*[^>]\)\)/\1(\5\6\7)\8/g
C++ does not require this pattern.
import re, fileinput
to = re.compile(r'^typedef struct ([a-z_A-Z]+)\s*{')
tc = re.compile(r'^}(.*?)\s*([a-z_A-Z]+);$')
osn = None
for line in fileinput.input(inplace=True):
m = to.match(line)
if m:
osn = m.group(1)
print 'struct %s\n{' % osn
continue
if osn:
m = tc.match(line)
if m:
csn = m.group(2)
if osn == csn:
print '}%s;' % m.group(1)
osn = None
continue
else:
osn = None
print line,
