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sms: Added comment about the gsm_7bit_alphabet table 

The table structure is not intuitive, so this comment shall aid to
understand this.
This commit is contained in:
Jacob Erlbeck 2013-08-12 17:07:54 +02:00 committed by Holger Hans Peter Freyther
parent 1d7f3b5eb2
commit 1810925dfb
1 changed files with 6 additions and 2 deletions
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8
src/gsm/gsm_utils.c
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@ -80,8 +80,12 @@
* left out as they can't be handled with a char and
* since most phones don't display or write these
* characters this would only needlessly make the code
* more complex
*/
* more complex.
*
* Note that this table contains the latin1->7bit mapping _and_ has
* been merged with the reverse mapping (7bit->latin1) for the
* extended characters at offset 0x7f.
*/
static unsigned char gsm_7bit_alphabet[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0a, 0xff, 0xff, 0x0d, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,