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bug#9960: Compiling Emacs trunk with MSVC

From: Fabrice Popineau
Subject: bug#9960: Compiling Emacs trunk with MSVC
Date: Sat, 12 Nov 2011 23:27:18 +0100

Can you show how the values of the following variables change as you
step through this fragment in read1 and inside read_escape it calls?


c 0x00000043 int
read_from_string_index 0x00000004 int
read_from_string_index_byte 0x00000004 int
read_from_string_limit 0x00000008 int

case 'C':

c 0x0000002d int
read_from_string_index 0x00000005 int
read_from_string_index_byte 0x00000005 int
read_from_string_limit 0x00000008 int

      if (c != '-')
error ("Invalid escape character syntax");
    case '^':
      c = READCHAR;

c 0x00000030 int
read_from_string_index 0x00000006 int
read_from_string_index_byte 0x00000006 int
read_from_string_limit 0x00000008 int

return c | ctrl_modifier;

back to read1:

modifiers = c & CHAR_MODIFIER_MASK;
if (CHAR_BYTE8_P (c))
 c = CHAR_TO_BYTE8 (c);
c |= modifiers;

next_char = READCHAR;

c 0x04000030 int
next_char 0x00000030 int
read_from_string_index 0x00000007 int
read_from_string_index_byte 0x00000007 int
read_from_string_limit 0x00000008 int

ok = (next_char <= 040
     || (next_char < 0200
 && strchr ("\"';()[]#?`,.", next_char) != NULL));

                ok = 0 => error

Hope you can decipher this.


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