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-rw-r--r--support/texlab/crates/bibutils_sys/src/utf8.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/support/texlab/crates/bibutils_sys/src/utf8.c b/support/texlab/crates/bibutils_sys/src/utf8.c
deleted file mode 100644
index fcc14365a4..0000000000
--- a/support/texlab/crates/bibutils_sys/src/utf8.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * utf8.c
- *
- * Copyright (c) Chris Putnam 2004-2019
- *
- * Source code released under the GPL version 2
- *
- */
-#include <stdio.h>
-#include <string.h>
-#include "utf8.h"
-
-/* UTF-8 encoding
-
-U-00000000 - U-0000007F: 0xxxxxxx
-U-00000080 - U-000007FF: 110xxxxx 10xxxxxx
-U-00000800 - U-0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx
-U-00010000 - U-001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
-U-00200000 - U-03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
-U-04000000 - U-7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
-
-*/
-
-static void
-utf8_build( unsigned int value, unsigned char out[6], int in_pos, int out_pos )
-{
- unsigned int in_mask, out_mask;
- int byte = 0;
- while ( in_pos < 32 ) {
- in_mask = 1 << ( 31 - in_pos );
- out_mask = 1 << ( 7 - out_pos );
- if ( value & in_mask ) out[byte] |= out_mask;
- in_pos++;
- out_pos++;
- if ( out_pos > 7 ) {
- out_pos=2;
- byte++;
- }
- }
-}
-
-/* int utf8( in, out[6] );
- *
- * in is character code 0x0 -> 0x7FFFFFFF
- * int is number of characters for output
- *
- */
-int
-utf8_encode( unsigned int value, unsigned char out[6] )
-{
- int i;
- for ( i=1; i<6; ++i ) out[i] = 0x80; /* 10xxxxxx */
- if ( value < 0x80 ) {
- out[0] = 0x0; /* 0xxxxxxx */
- utf8_build( value, out, 25, 1 );
- return 1;
- } else if ( value < 0x800 ) {
- out[0] = 0xC0; /* 110xxxxx */
- utf8_build( value, out, 21, 3 );
- return 2;
- } else if ( value < 0x10000 ) {
- out[0] = 0xE0; /* 1110xxxx */
- utf8_build( value, out, 16, 4 );
- return 3;
- } else if ( value < 0x200000 ) {
- out[0] = 0xF0; /* 11110xxx */
- utf8_build( value, out, 11, 5 );
- return 4;
- } else if ( value < 0x4000000 ) {
- out[0] = 0xF8; /* 111110xx */
- utf8_build( value, out, 6, 6 );
- return 5;
- } else if ( value < (unsigned int ) 0x80000000 ) {
- out[0] = 0xFC; /* 1111110x */
- utf8_build( value, out, 1, 7 );
- return 6;
- } else {
- /* error, above 2^31 bits encodable by UTF-8 */
- return 0;
- }
-}
-
-/* Generate UTF8 character as null-terminated string */
-void
-utf8_encode_str( unsigned int value, char outstr[7] )
-{
- unsigned char encoded[6];
- int i, n;
- n = utf8_encode( value, encoded );
- for ( i=0; i<n; ++i )
- outstr[i] = ( char ) encoded[i];
- outstr[n] = '\0';
-}
-
-unsigned int
-utf8_decode( const char *s, unsigned int *pi )
-{
- unsigned int c;
- int i = *pi;
- /* one digit utf-8 */
- if ((s[i] & 128)== 0 ) {
- c = (unsigned int) s[i];
- i += 1;
- } else if ((s[i] & 224)== 192 ) { /* 110xxxxx & 111xxxxx == 110xxxxx */
- c = (( (unsigned int) s[i] & 31 ) << 6) +
- ( (unsigned int) s[i+1] & 63 );
- i += 2;
- } else if ((s[i] & 240)== 224 ) { /* 1110xxxx & 1111xxxx == 1110xxxx */
- c = ( ( (unsigned int) s[i] & 15 ) << 12 ) +
- ( ( (unsigned int) s[i+1] & 63 ) << 6 ) +
- ( (unsigned int) s[i+2] & 63 );
- i += 3;
- } else if ((s[i] & 248)== 240 ) { /* 11110xxx & 11111xxx == 11110xxx */
- c = ( ( (unsigned int) s[i] & 7 ) << 18 ) +
- ( ( (unsigned int) s[i+1] & 63 ) << 12 ) +
- ( ( (unsigned int) s[i+2] & 63 ) << 6 ) +
- ( (unsigned int) s[i+3] & 63 );
- i+= 4;
- } else if ((s[i] & 252)== 248 ) { /* 111110xx & 111111xx == 111110xx */
- c = ( ( (unsigned int) s[i] & 3 ) << 24 ) +
- ( ( (unsigned int) s[i+1] & 63 ) << 18 ) +
- ( ( (unsigned int) s[i+2] & 63 ) << 12 ) +
- ( ( (unsigned int) s[i+3] & 63 ) << 6 ) +
- ( (unsigned int) s[i+4] & 63 );
- i += 5;
- } else if ((s[i] & 254)== 252 ) { /* 1111110x & 1111111x == 1111110x */
- c = ( ( (unsigned int) s[i] & 1 ) << 30 ) +
- ( ( (unsigned int) s[i+1] & 63 ) << 24 ) +
- ( ( (unsigned int) s[i+2] & 63 ) << 18 ) +
- ( ( (unsigned int) s[i+3] & 63 ) << 12 ) +
- ( ( (unsigned int) s[i+4] & 63 ) << 6 ) +
- ( (unsigned int) s[i+5] & 63 );
- i += 6;
- } else {
- c = '?';
- i++;
- }
- *pi = i;
- return c;
-}
-
-void
-utf8_writebom( FILE *outptr )
-{
- int i, nc;
- unsigned char code[6];
- nc = utf8_encode( 0xFEFF, code );
- for ( i=0; i<nc; ++i )
- fprintf(outptr,"%c",code[i]);
-}
-
-int
-utf8_is_bom( const char *p )
-{
- const unsigned char *up = ( unsigned char * ) p;
-
- /* ...if null-terminated string is too short, we're ok */
- if ( up[0]!=0xEF ) return 0;
- if ( up[1]!=0xBB ) return 0;
- if ( up[2]!=0xBF ) return 0;
-
- return 1;
-}
-
-/* utf8_is_emdash()
- *
- *emdash = 0xE2 (-30) 0x80 (-128) 0x94 (-108)
- */
-int
-utf8_is_emdash( const char *p )
-{
- const char emdash[3] = { -30, -128, -108 };
- if ( strncmp( p, emdash, 3 ) ) return 0;
- return 1;
-}
-
-/* utf8_is_endash()
- *
- * endash = 0xE2 (-30) 0x80 (-128) 0x93 (-109)
- */
-int
-utf8_is_endash( const char *p )
-{
- const char endash[3] = { -30, -128, -109 };
- if ( strncmp( p, endash, 3 ) ) return 0;
- return 1;
-}
-