FreeCalypso > hg > freecalypso-tools
annotate uptools/libcoding/ucs2_decode.c @ 550:bdaa4e7c9c05
doc/Target-utils: dspdump documented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 17 Nov 2019 22:09:49 +0000 |
parents | 978571e23318 |
children | 1c599681fd60 |
rev | line source |
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1 /* |
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2 * This library module implements the conversion of UCS2-encoded data |
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3 * (typically received in SMS) into ASCII, ISO 8859-1 or UTF-8, |
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4 * maintaining parallelism with the corresponding function for decoding |
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5 * GSM7-encoded data. |
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6 */ |
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7 |
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8 #include <sys/types.h> |
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9 |
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10 ucs2_to_ascii_or_ext(inbuf, inlen, outbuf, outlenp, ascii_ext, newline_ok, errp) |
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11 u_char *inbuf, *outbuf; |
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12 unsigned inlen, *outlenp, *errp; |
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13 { |
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14 u_char *inp, *endp, *outp; |
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15 unsigned errcnt = 0; |
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16 unsigned uni; |
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17 |
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18 inp = inbuf; |
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19 endp = inbuf + (inlen & ~1); |
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20 outp = outbuf; |
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21 while (inp < endp) { |
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22 uni = (inp[0] << 8) | inp[1]; |
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23 inp += 2; |
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24 if (uni == '\r') { |
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25 *outp++ = '\\'; |
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26 *outp++ = 'r'; |
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27 errcnt++; |
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28 } else if (uni == '\n') { |
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29 if (newline_ok) |
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30 *outp++ = '\n'; |
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31 else { |
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32 *outp++ = '\\'; |
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33 *outp++ = 'n'; |
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34 errcnt++; |
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35 } |
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36 } else if (!is_decoded_char_ok(uni, ascii_ext)) { |
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37 *outp++ = '?'; |
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38 errcnt++; |
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39 } else if (ascii_ext == 2) |
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40 outp += emit_utf8_char(uni, outp); |
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41 else |
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42 *outp++ = uni; |
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43 } |
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44 *outp = '\0'; |
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45 if (outlenp) |
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46 *outlenp = outp - outbuf; |
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47 if (errp) |
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48 *errp = errcnt; |
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49 } |