[1076] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * cfgread.cpp --
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| 4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | *********************************************************************/
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| 25 |
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| 26 | #include "cfgread.h"
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[9515] | 27 | #include <cctype> // for isspace()
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[1076] | 28 |
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[8727] | 29 | int write_ini_line (ofstream &fileout, const text_t &key, const text_t &value) {
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[1076] | 30 | if (key.empty() || value.empty()) return -1;
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| 31 | outconvertclass text_t2ascii;
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| 32 | fileout << text_t2ascii << key << "=" << value << "\n";
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| 33 | return 0;
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| 34 | }
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| 35 |
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| 36 | int read_ini_line (ifstream &filein, text_t &key, text_t &value) {
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| 37 | if (filein.eof()) return -1;
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| 38 |
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| 39 | key.clear();
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| 40 | value.clear();
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| 41 | char c;
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| 42 | filein.get(c);
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| 43 |
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| 44 | int foundeq = 0;
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| 45 | while (!filein.eof() && c != '\n') {
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| 46 | if (!foundeq && c == '=') {foundeq = 1; filein.get(c);}
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| 47 |
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| 48 | if (foundeq) value.push_back(c);
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| 49 | else key.push_back(c);
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| 50 | filein.get(c);
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| 51 | }
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[1739] | 52 | if (key.empty()) return 0; // blank line maybe?
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[1076] | 53 | return 0;
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| 54 | }
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| 55 |
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[1421] | 56 | // write out line of values to cfgfile
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| 57 | // does nothing fancy - make sure no values contain carriage returns
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| 58 | int write_cfg_line (ofstream &fileout, const text_tarray &values) {
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| 59 | outconvertclass text_t2ascii;
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[1076] | 60 |
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[1421] | 61 | text_tarray::const_iterator here = values.begin();
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| 62 | text_tarray::const_iterator end = values.end();
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| 63 |
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| 64 | bool first = true;
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| 65 | while (here != end) {
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| 66 | if (first) fileout << text_t2ascii << *here;
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| 67 | else fileout << text_t2ascii << " \"" << *here << "\"";
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| 68 | first = false;
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[8727] | 69 | ++here;
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[1421] | 70 | }
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| 71 | fileout << "\n";
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[1432] | 72 | return 0;
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[1421] | 73 | }
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[3528] | 74 |
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[3010] | 75 | // same, but use a file descriptor this time
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| 76 | int write_cfg_line (int fileout, const text_tarray &values) {
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| 77 | outconvertclass text_t2ascii;
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[1421] | 78 |
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[3010] | 79 | text_tarray::const_iterator here = values.begin();
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| 80 | text_tarray::const_iterator end = values.end();
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| 81 |
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[3528] | 82 | if (here != end) {
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| 83 | char *s=here->getcstr();
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| 84 | write(fileout,s ,here->size());
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[8727] | 85 | delete []s;
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[3528] | 86 |
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| 87 | ++here;
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| 88 | }
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[3010] | 89 | while (here != end) {
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[3528] | 90 | write(fileout, " \"", 2);
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| 91 | char *s=here->getcstr();
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| 92 | write(fileout,s ,here->size());
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[8727] | 93 | delete []s;
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[3528] | 94 | write(fileout, "\"", 1);
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[3010] | 95 |
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[3528] | 96 | ++here;
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[3010] | 97 | }
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| 98 | write(fileout,"\n",1);
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| 99 | return 0;
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| 100 | }
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| 101 |
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| 102 |
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[1076] | 103 | // returns 0 on success, -1 on failure
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| 104 | int read_cfg_line (ifstream &filein, text_tarray &values) {
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[3417] | 105 | // we split up the line into tokens, pushing each token into the
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| 106 | // values array. Quoted phrases are a single token. A "\" at the end
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| 107 | // of a line continues onto the next line.
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[1076] | 108 |
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| 109 | values.erase(values.begin(), values.end());
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| 110 |
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| 111 | if (!filein.good()) return -1;
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| 112 |
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| 113 | text_t curvalue;
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[7731] | 114 | char c1;
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[7705] | 115 | filein.get(c1);
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[1076] | 116 |
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[3417] | 117 | // skip white space
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[9515] | 118 | while (!filein.eof() && isspace((unsigned char) c1)) { filein.get(c1); }
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[3417] | 119 |
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[1076] | 120 | // ignore comments
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[20710] | 121 | while (!filein.eof() && c1 == '#') {
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[7705] | 122 | while (!filein.eof() && c1!='\n' && c1!='\r') { filein.get(c1); }
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[3417] | 123 | // skip white space...
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[9515] | 124 | while (!filein.eof() && isspace((unsigned char) c1)) { filein.get(c1); }
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[3417] | 125 | }
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| 126 |
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| 127 | // deal with all the records on this line (possibly multi-line)
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[7705] | 128 |
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[3417] | 129 | while (!filein.eof()) {
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[7705] | 130 | if (c1=='\n' || c1=='\r') { // shouldn't happen?
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[3417] | 131 | break;
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[1076] | 132 | }
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| 133 |
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[3417] | 134 | // get the next token
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| 135 | curvalue.clear();
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| 136 |
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[7705] | 137 | bool inquote=false;
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[7731] | 138 | char quotemark='"';
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[7733] | 139 | char preceding='\0'; // 1-char state to allow \" and \'
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[7705] | 140 | // see if this is a quoted phrase
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| 141 | if (c1=='\'' || c1=='\"') { // starts with a quote
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| 142 | inquote=true;
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| 143 | quotemark = c1;
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| 144 | preceding = c1; // just to initialise
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| 145 | filein.get(c1);
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| 146 | }
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| 147 |
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| 148 | // get token or a whole phrase
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| 149 | while (!filein.eof()) {
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[9515] | 150 | if (isspace((unsigned char) c1)) {
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[7705] | 151 | if (! inquote) {
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| 152 | // end of token, not inside quote marks
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| 153 | break;
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| 154 | } else {
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| 155 | // inside quote marks.
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| 156 | /* Turn eol into space, in case other parsing bits expect eol to
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| 157 | also mean end of parsing... */
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| 158 | c1=' ';
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| 159 | }
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[3417] | 160 | }
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[7705] | 161 | if (c1 == quotemark && inquote && preceding != '\\') {
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| 162 | // end of quoted phrase found
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| 163 | inquote=false;
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| 164 | filein.get(c1);
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| 165 | continue;
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[3417] | 166 | }
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[7705] | 167 |
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| 168 | // add current char to token/phrase
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| 169 | // see if current byte is part of a multibyte char (utf-8 only!)
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| 170 | unsigned short int c; // text_t uses 16bit unicode
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[7731] | 171 | unsigned char uc1=(unsigned)c1;
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| 172 | if (uc1 < 0x80) {
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| 173 | c=uc1;
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| 174 | } else if (uc1 >= 0xc0 && uc1 <= 0xdf) {
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[7705] | 175 | // 2-byte utf-8
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| 176 | unsigned char c2;
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| 177 | // two byte character
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[7733] | 178 | filein.get((char&)c2); // get takes a signed char
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[7731] | 179 | c = ((uc1 & 0x1f) << 6) + (c2 & 0x3f);
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| 180 | } else if (uc1 >= 0xe0 && uc1 <= 0xef) {
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[7705] | 181 | // 3-byte character
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| 182 | unsigned char c2, c3;
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[7733] | 183 | filein.get((char&)c2);
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| 184 | filein.get((char&)c3);
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[7731] | 185 | c = ((uc1 & 0xf) << 12) + ((c2 & 0x3f) << 6)
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| 186 | + (c3 & 0x3f);
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[7733] | 187 | } else {c=uc1;} // we don't do group2/plane0 (4,5,6-byte utf-8)
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[7705] | 188 |
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| 189 | curvalue.push_back(c); // 16bit unicode
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| 190 | if (inquote)
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| 191 | preceding = c1;
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| 192 |
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| 193 | filein.get(c1);
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[3417] | 194 | }
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| 195 | // we now have a token or a phrase
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| 196 |
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| 197 | // see if we've reached the end of the line
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[7705] | 198 | if (c1 == '\n' || c1 == '\r') {
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[3417] | 199 | if (curvalue != "\\") { // the line DOESN'T continue. End of line.
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| 200 | values.push_back(curvalue);
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[7705] | 201 | break; // end of token/phrase
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[3521] | 202 | } else {
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| 203 | // swallow up the EOL chars
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[7705] | 204 | while (!filein.eof() && (c1=='\r' || c1=='\n')) filein.get(c1);
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| 205 | // the current token "\\" will be cleared below
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[3417] | 206 | }
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| 207 | } else { // no new line seen
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| 208 | values.push_back(curvalue);
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| 209 | }
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[1076] | 210 |
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[3417] | 211 | curvalue.clear();
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[1076] | 212 |
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[3521] | 213 | // remove whitespace (but not newline/CR chars) before next token
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[7705] | 214 | while (!filein.eof() && (c1==' ' || c1=='\t')) filein.get(c1);
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[1076] | 215 |
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[3417] | 216 | } // while(1)
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| 217 |
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[1076] | 218 |
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| 219 | return 0;
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| 220 | }
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