1 # Reads in a text file, and performs the necessary escapes so that it
2 # can be #included as a static string like:
3 #    static const char string_from_textfile[] =
4 #    #include "build/textfile.h"
5 #    ;
6 # This script simply prints the escaped string straight to stdout
7 
8 from __future__ import print_function
9 
10 import sys
11 
12 # Can either be set explicitly, or left blank to auto-detect
13 # Except auto-detect doesn't work because the file has been passed
14 # through Python text processing, which makes all EOL a \n
15 line_end = "\\r\\n"
16 
17 if __name__ == "__main__":
18     filename = sys.argv[1]
19     for line in open(filename, "r").readlines():
20         if not line_end:
21             for ending in ("\r\n", "\r", "\n"):
22                 if line.endswith(ending):
23                     line_end = ending.replace("\r", "\\r").replace("\n", "\\n")
24                     break
25             if not line_end:
26                 raise Exception("Couldn't auto-detect line-ending of %s" % filename)
27         line = line.rstrip("\r\n")
28         line = line.replace("\\", "\\\\")
29         line = line.replace('"', '\\"')
30         print('"%s%s"' % (line, line_end))
31