/[webpac]/openisis/current/lcs.c
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Contents of /openisis/current/lcs.c

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Revision 237 - (show annotations)
Mon Mar 8 17:43:12 2004 UTC (15 years, 5 months ago) by dpavlin
File MIME type: text/plain
File size: 6566 byte(s)
initial import of openisis 0.9.0 vendor drop

1 /*
2 openisis - an open implementation of the CDS/ISIS database
3 Version 0.8.x (patchlevel see file Version)
4 Copyright (C) 2001-2003 by Erik Grziwotz, erik@openisis.org
5
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 This library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
20 see README for more information
21 EOH */
22
23 /*
24 $Id: lcs.c,v 1.8 2003/04/08 00:20:52 kripke Exp $
25 charset support
26 */
27
28 #include <string.h> /* memset */
29
30 #include "luti.h"
31 #include "lio.h"
32 #include "lcs.h"
33
34
35 /* ************************************************************
36 private types
37 */
38 /* ************************************************************
39 private data
40 */
41 /* ************************************************************
42 private functions
43 */
44 /* ************************************************************
45 package functions
46 */
47 unsigned char lcs_latin1_uc[256] = {
48 0,' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',
49 ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',
50 ' ','!','"','#','$','%','&','\'','(',')','*','+',',','-','.','/',
51 '0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?',
52 '@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
53 'P','Q','R','S','T','U','V','W','X','Y','Z','[','\\',']','^','_',
54 '`','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
55 'P','Q','R','S','T','U','V','W','X','Y','Z','{','|','}','~',' ',
56 ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',
57 ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',
58 ' ',161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
59 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
60 'A','A','A','A','A','A','A','C','E','E','E','E','I','I','I','I',
61 'T','N','O','O','O','O','O',215,'O','U','U','U','U','Y','T','S',
62 'A','A','A','A','A','A','A','C','E','E','E','E','I','I','I','I',
63 'T','N','O','O','O','O','O',247,'O','U','U','U','U','Y','T','Y'
64 };
65
66 unsigned char lcs_latin1_ct[256] = {
67 /* NUL STX SOT ETX EOT ENQ ACK BEL */
68 LCS_F,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,
69 /* BS HT LF VT FF CR SO SI */
70 LCS_C,LCS_C,LCS_F,LCS_C,LCS_R,LCS_F,LCS_C,LCS_C,
71 /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
72 LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,
73 /* CAN EM SUB ESC FS GS RS US */
74 LCS_C,LCS_C,LCS_C,LCS_C,LCS_C,LCS_R,LCS_F,LCS_C,
75 /*blank ! " # $ % & ' */
76 LCS_S,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,
77 /* ( ) * + , - . / */
78 LCS_P,LCS_P,LCS_P,LCS_P,LCS_T,LCS_P,LCS_P,LCS_P,
79 /* 0 1 2 3 4 5 6 7 */
80 LCS_D,LCS_D,LCS_D,LCS_D,LCS_D,LCS_D,LCS_D,LCS_D,
81 /* 8 9 : ; < = > ? */
82 LCS_D,LCS_D,LCS_T,LCS_T,LCS_P,LCS_T,LCS_P,LCS_P,
83 /* @ A B C D E F G */
84 LCS_P,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
85 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A, /* H-O */
86 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A, /* P-W */
87 /* X Y Z [ \ ] ^ _ */
88 LCS_A,LCS_A,LCS_A,LCS_P,LCS_P,LCS_P,LCS_P,LCS_I,
89 /* ` a b c d e f g */
90 LCS_P,LCS_L,LCS_A,LCS_L,LCS_A,LCS_A,LCS_A,LCS_A,
91 LCS_A,LCS_L,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
92 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
93 /* x y z { | } ~ DEL */
94 LCS_L,LCS_A,LCS_A,LCS_P,LCS_P,LCS_P,LCS_P,LCS_C,
95 /* 32 C0 controls */
96 LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,
97 LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,
98 LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,
99 LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,LCS_P,
100 /* 32 mostly symbols */
101 LCS_S,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,
102 LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,
103 LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,
104 LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,LCS_Y,
105 /* 64 Latin alphas including 2 symbols */
106 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
107 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
108 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_Y,
109 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
110 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
111 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,
112 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_Y,
113 LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A,LCS_A
114 };
115
116
117 /* ************************************************************
118 package functions
119 */
120 int lcs_mktab ( LcsTab *dst, char *n, int l, int bits )
121 {
122 int ret = 0;
123 unsigned char *c = dst->c;
124 unsigned short *u = dst->u;
125 int line = 1;
126 int i = 0;
127 memset( dst, 0, sizeof(*dst) );
128 for (;; i++ ) {
129 unsigned short in = 0;
130 for ( ; l && (*n < '0' || '9' < *n); n++, l-- ) /* skip nondigs */
131 if ( '\n' == *n )
132 line++;
133 if ( ! l )
134 break;
135 for ( ; l && '0' <= *n && *n <= '9'; n++, l--)
136 in = 10*in + *n - '0';
137 if ( bits < 0 ) {
138 if ( i > 127 ) {
139 log_msg( LOG_WARN, "too many unicode values in input" );
140 return 0;
141 }
142 if ( in <= 0xffff )
143 u[i] = in;
144 else
145 log_msg( ERR_INVAL, "unicode %d too big %dth value line %d",
146 in, i, line );
147 continue;
148 }
149 if ( in > 0xff )
150 log_msg( ERR_INVAL, "byte %d too big %dth value line %d",
151 in, i, line );
152 else if ( bits )
153 c[in] |= bits;
154 else if ( i > 255 ) {
155 log_msg( LOG_WARN, "too many values in input" );
156 return 0;
157 } else
158 c[i] = (unsigned char)in;
159 }
160 return ret;
161 } /* lcs_mktab */
162
163
164 int lcs_mkrecod ( unsigned char *dst, unsigned short *from,
165 unsigned short *to )
166 {
167 int i = 0, j;
168 for ( i=0; i<128; i++ )
169 dst[i] = (unsigned char)i; /* identity */
170 for ( ; i<256; i++ ) {
171 unsigned short s = from[ i - 128 ];
172 dst[i] = ' ';
173 if ( to )
174 for ( j=128; j--; ) {
175 if ( s == to[j] ) {
176 dst[i] = (unsigned char)128+j;
177 break;
178 }
179 }
180 else if ( 256 > s ) /* map to latin 1 */
181 dst[i] = (unsigned char)s;
182 }
183 return 0;
184 } /* lcs_mkrecod */
185
186
187 /* ************************************************************
188 public functions
189 */

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