56 lines
1.9 KiB
Ruby
56 lines
1.9 KiB
Ruby
class PreprocessinatorExtractor
|
|
def extract_base_file_from_preprocessed_expansion(filepath)
|
|
# preprocessing by way of toolchain preprocessor expands macros, eliminates
|
|
# comments, strips out #ifdef code, etc. however, it also expands in place
|
|
# each #include'd file. so, we must extract only the lines of the file
|
|
# that belong to the file originally preprocessed
|
|
|
|
# iterate through all lines and alternate between extract and ignore modes
|
|
# all lines between a '#'line containing file name of our filepath and the
|
|
# next '#'line should be extracted
|
|
|
|
base_name = File.basename(filepath)
|
|
not_pragma = /^#(?!pragma\b)/ # preprocessor directive that's not a #pragma
|
|
pattern = /^#.*(\s|\/|\\|\")#{Regexp.escape(base_name)}/
|
|
found_file = false # have we found the file we care about?
|
|
|
|
lines = []
|
|
File.readlines(filepath).each do |line|
|
|
line.encode!('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '')
|
|
if found_file and not line =~ not_pragma
|
|
lines << line
|
|
else
|
|
found_file = false
|
|
end
|
|
|
|
found_file = true if line =~ pattern
|
|
end
|
|
|
|
return lines
|
|
end
|
|
|
|
def extract_base_file_from_preprocessed_directives(filepath)
|
|
# preprocessing by way of toolchain preprocessor eliminates directives only
|
|
# like #ifdef's and leave other code
|
|
|
|
# iterate through all lines and only get last chunk of file after a last
|
|
# '#'line containing file name of our filepath
|
|
|
|
base_name = File.basename(filepath)
|
|
pattern = /^#.*(\s|\/|\\|\")#{Regexp.escape(base_name)}/
|
|
found_file = false # have we found the file we care about?
|
|
|
|
lines = []
|
|
File.readlines(filepath).each do |line|
|
|
line.encode!('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '')
|
|
lines << line
|
|
|
|
if line =~ pattern
|
|
lines = []
|
|
end
|
|
end
|
|
|
|
return lines
|
|
end
|
|
end
|