299 lines
8.6 KiB
C
299 lines
8.6 KiB
C
//=========================================================================
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// FILENAME : textutils.c
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// DESCRIPTION : Misc. text utilities
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//=========================================================================
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// Copyright (c) 2008- NETGEAR, Inc. All Rights Reserved.
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//=========================================================================
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/* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "misc.h"
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#include "textutils.h"
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#include "../log.h"
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static unsigned int
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_char_htoi(char h)
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{
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if (h<'0')
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return 0;
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if (h<='9')
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return h-'0';
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if (h<'A')
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return 0;
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if (h<='F')
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return h-'A'+10;
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if (h<'a')
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return 0;
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if (h<='f')
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return h-'a'+10;
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return 0;
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}
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void
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urldecode(char *src)
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{
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char c, *s, *d;
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for (d=s=src; *s; s++, d++) {
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c = *s;
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if (c=='%') {
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c = *++s;
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if (c=='%')
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c = '%';
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else {
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c = _char_htoi(c)<<4 | _char_htoi(*++s);
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}
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*d = c;
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}
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else {
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*d = c;
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}
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}
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*d = '\0';
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}
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#if 0
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static int
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is_ignoredword(const char *str)
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{
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int i;
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if (!prefs.ignoredwords)
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return 0;
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for (i=0; prefs.ignoredwords[i].n; i++) {
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if (!(strncasecmp(prefs.ignoredwords[i].word, str, prefs.ignoredwords[i].n))) {
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char next_char = str[prefs.ignoredwords[i].n];
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if (isalnum(next_char))
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continue;
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return prefs.ignoredwords[i].n;
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}
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}
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return 0;
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}
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#endif
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char *
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skipspaces(const char *str)
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{
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while (isspace(*str)) str++;
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return (char*) str;
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}
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/*
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U+0040 (40): @ A B C D E F G H I J K L M N O
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U+0050 (50): P Q R S T U V W X Y Z [ \ ] ^ _
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U+0060 (60): ` a b c d e f g h i j k l m n o
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U+0070 (70): p q r s t u v w x y z { | } ~
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U+00c0 (c3 80): À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï
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U+00d0 (c3 90): Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß
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U+00e0 (c3 a0): à á â ã ä å æ ç è é ê ë ì í î ï
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U+00f0 (c3 b0): ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ
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U+0100 (c4 80): Ā ā Ă ă Ą ą Ć ć Ĉ ĉ Ċ ċ Č č Ď ď
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U+0110 (c4 90): Đ đ Ē ē Ĕ ĕ Ė ė Ę ę Ě ě Ĝ ĝ Ğ ğ
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U+0120 (c4 a0): Ġ ġ Ģ ģ Ĥ ĥ Ħ ħ Ĩ ĩ Ī ī Ĭ ĭ Į į
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U+0130 (c4 b0): İ ı IJ ij Ĵ ĵ Ķ ķ ĸ Ĺ ĺ Ļ ļ Ľ ľ Ŀ
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U+0140 (c5 80): ŀ Ł ł Ń ń Ņ ņ Ň ň ʼn Ŋ ŋ Ō ō Ŏ ŏ
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U+0150 (c5 90): Ő ő Œ œ Ŕ ŕ Ŗ ŗ Ř ř Ś ś Ŝ ŝ Ş ş
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U+0160 (c5 a0): Š š Ţ ţ Ť ť Ŧ ŧ Ũ ũ Ū ū Ŭ ŭ Ů ů
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U+0170 (c5 b0): Ű ű Ų ų Ŵ ŵ Ŷ ŷ Ÿ Ź ź Ż ż Ž ž ſ
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*/
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// conversion table for latin diacritical char to ascii one char or two chars.
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unsigned short UtoAscii[] = {
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// U+00c0
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0x0041,0x0041,0x0041,0x0041, 0x0041,0x0041,0x4145,0x0043, 0x0045,0x0045,0x0045,0x0045, 0x0049,0x0049,0x0049,0x0049,
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0x0044,0x004e,0x004f,0x004f, 0x004f,0x004f,0x004f,0xc397, 0xc398,0x0055,0x0055,0x0055, 0x0055,0x0059,0x0050,0x5353,
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// U+00e0
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0x0041,0x0041,0x0041,0x0041, 0x0041,0x0041,0x4145,0x0043, 0x0045,0x0045,0x0045,0x0045, 0x0049,0x0049,0x0049,0x0049,
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0x0044,0x004e,0x004f,0x004f, 0x004f,0x004f,0x004f,0xc397, 0xc398,0x0055,0x0055,0x0055, 0x0055,0x0059,0x0050,0x5353,
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// U+0100
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0x0041,0x0041,0x0041,0x0041, 0x0041,0x0041,0x0043,0x0043, 0x0043,0x0043,0x0043,0x0043, 0x0043,0x0043,0x0044,0x0044,
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0x0044,0x0044,0x0045,0x0045, 0x0045,0x0045,0x0045,0x0045, 0x0045,0x0045,0x0045,0x0045, 0x0047,0x0047,0x0047,0x0047,
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// U+0120
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0x0047,0x0047,0x0047,0x0047, 0x0048,0x0048,0x0048,0x0048, 0x0049,0x0049,0x0049,0x0049, 0x0049,0x0049,0x0049,0x0049,
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0x0049,0x0049,0x494a,0x494a, 0x004a,0x004a,0x004b,0x004b, 0x004b,0x004c,0x004c,0x004c, 0x004c,0x004c,0x004c,0x004c,
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// U+0140
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0x004c,0x004c,0x004c,0x004e, 0x004e,0x004e,0x004e,0x004e, 0x004e,0x004e,0x004e,0x004e, 0x004f,0x004f,0x004f,0x004f,
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0x004f,0x004f,0x4f45,0x4f45, 0x0052,0x0052,0x0052,0x0052, 0x0052,0x0052,0x0053,0x0053, 0x0053,0x0053,0x0053,0x0053,
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// U+0160
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0x0053,0x0053,0x0054,0x0054, 0x0054,0x0054,0x0054,0x0054, 0x0055,0x0055,0x0055,0x0055, 0x0055,0x0055,0x0055,0x0055,
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0x0055,0x0055,0x0055,0x0055, 0x0057,0x0057,0x0059,0x0059, 0x0059,0x005a,0x005a,0x005a, 0x005a,0x005a,0x005a,0xc5bf
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};
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// conversion table for toupper() function for latin diacritical char
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unsigned short UtoUpper[] = {
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// U+00c0
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0xc380,0xc381,0xc382,0xc383, 0xc384,0xc385,0xc386,0xc387, 0xc388,0xc389,0xc38a,0xc38b, 0xc38c,0xc38d,0xc38e,0xc38f,
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0xc390,0xc391,0xc392,0xc393, 0xc394,0xc395,0xc396,0xc397, 0xc398,0xc399,0xc39a,0xc39b, 0xc39c,0xc39d,0xc39e,0x5353,
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// U+00e0
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0xc380,0xc381,0xc382,0xc383, 0xc384,0xc385,0xc386,0xc387, 0xc388,0xc389,0xc38a,0xc38b, 0xc38c,0xc38d,0xc38e,0xc38f,
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0xc390,0xc391,0xc392,0xc393, 0xc394,0xc395,0xc396,0xc397, 0xc398,0xc399,0xc39a,0xc39b, 0xc39c,0xc39d,0xc39e,0xc39f,
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// U+0100
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0xc480,0xc480,0xc482,0xc482, 0xc484,0xc484,0xc486,0xc486, 0xc488,0xc488,0xc48a,0xc48a, 0xc48c,0xc48c,0xc48e,0xc48e,
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0xc490,0xc490,0xc492,0xc492, 0xc494,0xc494,0xc496,0xc496, 0xc498,0xc498,0xc49a,0xc49a, 0xc49c,0xc49c,0xc49e,0xc49e,
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// U+0120
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0xc4a0,0xc4a0,0xc4a2,0xc4a2, 0xc4a4,0xc4a4,0xc4a6,0xc4a6, 0xc4a8,0xc4a8,0xc4aa,0xc4aa, 0xc4ac,0xc4ac,0xc4ae,0xc4ae,
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0xc4b0,0xc4b0,0xc4b2,0xc4b2, 0xc4b4,0xc4b4,0xc4b6,0xc4b6, 0xc4b8,0xc4b9,0xc4b9,0xc4bb, 0xc4bb,0xc4bd,0xc4bd,0xc4bf,
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// U+0140
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0xc4bf,0xc581,0xc581,0xc583, 0xc583,0xc585,0xc585,0xc587, 0xc587,0xc589,0xc58a,0xc58a, 0xc58c,0xc58c,0xc58e,0xc58e,
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0xc590,0xc591,0xc592,0xc593, 0xc594,0xc595,0xc596,0xc597, 0xc598,0xc599,0xc59a,0xc59b, 0xc59c,0xc59d,0xc59e,0xc59f,
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// U+0160
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0xc5a0,0xc5a0,0xc5a2,0xc5a2, 0xc5a4,0xc5a4,0xc5a6,0xc5a6, 0xc5a8,0xc5a8,0xc5aa,0xc5aa, 0xc5ac,0xc5ac,0xc5ae,0xc5ae,
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0xc5b0,0xc5b1,0xc5b2,0xc5b3, 0xc5b4,0xc5b5,0xc5b6,0xc5b7, 0xc5b8,0xc5b9,0xc5b9,0xc5bb, 0xc5bc,0xc5bd,0xc5bd,0xc5bf,
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};
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int
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safe_atoi(char *s)
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{
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if (!s)
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return 0;
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if ((s[0]>='0' && s[0]<='9') || s[0]=='-' || s[0]=='+')
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return atoi(s);
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return 0;
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}
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// NOTE: support U+0000 ~ U+FFFF only.
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int
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utf16le_to_utf8(char *dst, int n, __u16 utf16le)
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{
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__u16 wc = le16_to_cpu(utf16le);
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if (wc < 0x80) {
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if (n<1) return 0;
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*dst++ = wc & 0xff;
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return 1;
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}
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else if (wc < 0x800) {
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if (n<2) return 0;
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*dst++ = 0xc0 | (wc>>6);
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*dst++ = 0x80 | (wc & 0x3f);
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return 2;
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}
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else {
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if (n<3) return 0;
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*dst++ = 0xe0 | (wc>>12);
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*dst++ = 0x80 | ((wc>>6) & 0x3f);
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*dst++ = 0x80 | (wc & 0x3f);
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return 3;
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}
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}
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void
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fetch_string_txt(char *fname, char *lang, int n, ...)
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{
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va_list args;
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char **keys;
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char ***strs;
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char **defstr;
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int i;
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FILE *fp;
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char buf[4096];
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int state;
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char *p;
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char *langid;
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const char *lang_en = "EN";
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if (!(keys = malloc(sizeof(keys) * n))) {
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DPRINTF(E_FATAL, L_SCANNER, "Out of memory\n");
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}
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if (!(strs = malloc(sizeof(strs) * n))) {
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DPRINTF(E_FATAL, L_SCANNER, "Out of memory\n");
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}
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if (!(defstr = malloc(sizeof(defstr) * n))) {
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DPRINTF(E_FATAL, L_SCANNER, "Out of memory\n");
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}
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va_start(args, n);
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for (i=0; i<n; i++) {
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keys[i] = va_arg(args, char *);
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strs[i] = va_arg(args, char **);
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defstr[i] = va_arg(args, char *);
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}
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va_end(args);
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if (!(fp = fopen(fname, "rb"))) {
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DPRINTF(E_ERROR, L_SCANNER, "Cannot open <%s>\n", fname);
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goto _exit;
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}
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state = -1;
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while (fgets(buf, sizeof(buf), fp)) {
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int len = strlen(buf);
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if (buf[len-1]=='\n') buf[len-1] = '\0';
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if (state<0) {
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if (isalpha(buf[0])) {
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for (i=0; i<n; i++) {
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if (!(strcmp(keys[i], buf))) {
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state = i;
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break;
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}
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}
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}
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}
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else {
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int found = 0;
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if (isalpha(buf[0]) || buf[0]=='\0') {
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state = -1;
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continue;
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}
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p = buf;
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while (isspace(*p)) p++;
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if (*p == '\0') {
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state = -1;
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continue;
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}
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langid = p;
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while (!isspace(*p)) p++;
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*p++ = '\0';
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if (!strcmp(lang, langid))
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found = 1;
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else if (strcmp(lang_en, langid))
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continue;
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while (isspace(*p)) p++;
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if (*strs[state])
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free(*strs[state]);
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*strs[state] = strdup(p);
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if (found)
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state = -1;
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}
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}
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for (i=0; i<n; i++) {
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if (!*strs[i])
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*strs[i] = defstr[i];
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}
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fclose(fp);
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_exit:
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free(keys);
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free(strs);
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free(defstr);
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}
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