FreeCalypso > hg > freecalypso-tools
changeset 354:ec0d6d58e043
uptools/libcoding: UTF-8 input conversion to 8859-1 implemented
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 05 Feb 2018 19:01:27 +0000 |
| parents | 3bcc56883b17 |
| children | 8fee530f7850 |
| files | uptools/libcoding/Makefile uptools/libcoding/utf8_decode.c |
| diffstat | 2 files changed, 30 insertions(+), 1 deletions(-) [+] |
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--- a/uptools/libcoding/Makefile Mon Feb 05 17:35:49 2018 +0000 +++ b/uptools/libcoding/Makefile Mon Feb 05 19:01:27 2018 +0000 @@ -2,7 +2,7 @@ CFLAGS= -O2 OBJS= alpha_addr.o decode_helpers.o grokdcs.o gsm7_decode.o \ gsm7_decode_tables.o gsm7_unpack.o gsmtime.o hexdecode.o hexdump.o \ - number_decode.o scaddr.o ucs2_decode.o + number_decode.o scaddr.o ucs2_decode.o utf8_decode.o LIB= libcoding.a all: ${LIB}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/uptools/libcoding/utf8_decode.c Mon Feb 05 19:01:27 2018 +0000 @@ -0,0 +1,29 @@ +/* + * This library module implements a function that converts text input + * from UTF-8 to ISO 8859-1, rejecting any input Unicode characters + * that aren't in the 8859-1 range. The conversion in done in place. + */ + +#include <sys/types.h> + +utf8_to_latin1(buf) + u_char *buf; +{ + u_char *ip = buf, *op = buf; + int c, c2; + + while (c = *ip++) { + if (c < 0x80) { + *op++ = c; + continue; + } + if (c != 0xC2 && c != 0xC3) + return(-1); + c2 = *ip++; + if (c2 < 0x80 || c2 > 0xBF) + return(-1); + *op++ = ((c & 3) << 6) | (c2 & 0x3F); + } + *op = '\0'; + return(0); +}