Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame^] | 1 | /* $Id$
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| 2 | */
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| 3 | /*
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| 4 | * PJLIB - PJ Foundation Library
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| 5 | * (C)2003-2005 Benny Prijono <bennylp@bulukucing.org>
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| 6 | *
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| 7 | * Author:
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| 8 | * Benny Prijono <bennylp@bulukucing.org>
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| 9 | *
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| 10 | * This library is free software; you can redistribute it and/or
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| 11 | * modify it under the terms of the GNU Lesser General Public
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| 12 | * License as published by the Free Software Foundation; either
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| 13 | * version 2.1 of the License, or (at your option) any later version.
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| 14 | *
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| 15 | * This library 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 GNU
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| 18 | * Lesser 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 Lesser General Public
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| 21 | * License along with this library; if not, write to the Free Software
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| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 23 | */
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| 24 | #ifndef __PJPP_SCANNER_HPP__
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| 25 | #define __PJPP_SCANNER_HPP__
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| 26 |
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| 27 | #include <pjlib-util/scanner.h>
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| 28 | #include <pj++/string.hpp>
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| 29 |
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| 30 | class Pj_Char_Spec
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| 31 | {
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| 32 | public:
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| 33 | Pj_Char_Spec() { pj_cs_init(cs__); }
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| 34 |
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| 35 | void set(int c) { pj_cs_set(cs__, c); }
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| 36 | void add_range(int begin, int end) { pj_cs_add_range(cs__, begin, end); }
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| 37 | void add_alpha() { pj_cs_add_alpha(cs__); }
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| 38 | void add_num() { pj_cs_add_num(cs__); }
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| 39 | void add_str(const char *str) { pj_cs_add_str(cs__, str); }
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| 40 | void del_range(int begin, int end) { pj_cs_del_range(cs__, begin, end); }
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| 41 | void del_str(const char *str) { pj_cs_del_str(cs__, str); }
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| 42 | void invert() { pj_cs_invert(cs__); }
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| 43 | int match(int c) { return pj_cs_match(cs__, c); }
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| 44 |
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| 45 | pj_char_spec_element_t *cs_()
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| 46 | {
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| 47 | return cs__;
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| 48 | }
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| 49 |
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| 50 | const pj_char_spec_element_t *cs_() const
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| 51 | {
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| 52 | return cs__;
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| 53 | }
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| 54 |
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| 55 | private:
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| 56 | pj_char_spec cs__;
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| 57 | };
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| 58 |
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| 59 | class Pj_Scanner
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| 60 | {
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| 61 | public:
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| 62 | Pj_Scanner() {}
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| 63 |
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| 64 | enum
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| 65 | {
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| 66 | SYNTAX_ERROR = 101
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| 67 | };
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| 68 | static void syntax_error_handler_throw_pj(pj_scanner *);
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| 69 |
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| 70 | typedef pj_scan_state State;
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| 71 |
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| 72 | void init(char *buf, int len, unsigned options=PJ_SCAN_AUTOSKIP_WS,
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| 73 | pj_syn_err_func_ptr callback = &syntax_error_handler_throw_pj)
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| 74 | {
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| 75 | pj_scan_init(&scanner_, buf, len, options, callback);
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| 76 | }
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| 77 |
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| 78 | void fini()
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| 79 | {
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| 80 | pj_scan_fini(&scanner_);
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| 81 | }
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| 82 |
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| 83 | int eof() const
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| 84 | {
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| 85 | return pj_scan_is_eof(&scanner_);
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| 86 | }
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| 87 |
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| 88 | int peek_char() const
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| 89 | {
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| 90 | return *scanner_.curptr;
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| 91 | }
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| 92 |
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| 93 | int peek(const Pj_Char_Spec *cs, Pj_String *out)
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| 94 | {
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| 95 | return pj_scan_peek(&scanner_, cs->cs_(), out);
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| 96 | }
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| 97 |
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| 98 | int peek_n(pj_size_t len, Pj_String *out)
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| 99 | {
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| 100 | return pj_scan_peek_n(&scanner_, len, out);
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| 101 | }
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| 102 |
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| 103 | int peek_until(const Pj_Char_Spec *cs, Pj_String *out)
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| 104 | {
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| 105 | return pj_scan_peek_until(&scanner_, cs->cs_(), out);
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| 106 | }
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| 107 |
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| 108 | void get(const Pj_Char_Spec *cs, Pj_String *out)
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| 109 | {
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| 110 | pj_scan_get(&scanner_, cs->cs_(), out);
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| 111 | }
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| 112 |
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| 113 | void get_n(unsigned N, Pj_String *out)
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| 114 | {
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| 115 | pj_scan_get_n(&scanner_, N, out);
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| 116 | }
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| 117 |
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| 118 | int get_char()
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| 119 | {
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| 120 | return pj_scan_get_char(&scanner_);
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| 121 | }
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| 122 |
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| 123 | void get_quote(int begin_quote, int end_quote, Pj_String *out)
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| 124 | {
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| 125 | pj_scan_get_quote(&scanner_, begin_quote, end_quote, out);
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| 126 | }
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| 127 |
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| 128 | void get_newline()
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| 129 | {
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| 130 | pj_scan_get_newline(&scanner_);
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| 131 | }
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| 132 |
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| 133 | void get_until(const Pj_Char_Spec *cs, Pj_String *out)
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| 134 | {
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| 135 | pj_scan_get_until(&scanner_, cs->cs_(), out);
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| 136 | }
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| 137 |
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| 138 | void get_until_ch(int until_ch, Pj_String *out)
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| 139 | {
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| 140 | pj_scan_get_until_ch(&scanner_, until_ch, out);
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| 141 | }
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| 142 |
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| 143 | void get_until_chr(const char *spec, Pj_String *out)
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| 144 | {
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| 145 | pj_scan_get_until_chr(&scanner_, spec, out);
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| 146 | }
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| 147 |
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| 148 | void advance_n(unsigned N, bool skip_ws=true)
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| 149 | {
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| 150 | pj_scan_advance_n(&scanner_, N, skip_ws);
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| 151 | }
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| 152 |
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| 153 | int strcmp(const char *s, int len)
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| 154 | {
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| 155 | return pj_scan_strcmp(&scanner_, s, len);
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| 156 | }
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| 157 |
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| 158 | int stricmp(const char *s, int len)
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| 159 | {
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| 160 | return pj_scan_stricmp(&scanner_, s, len);
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| 161 | }
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| 162 |
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| 163 | void skip_ws()
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| 164 | {
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| 165 | pj_scan_skip_whitespace(&scanner_);
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| 166 | }
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| 167 |
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| 168 | void save_state(State *state)
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| 169 | {
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| 170 | pj_scan_save_state(&scanner_, state);
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| 171 | }
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| 172 |
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| 173 | void restore_state(State *state)
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| 174 | {
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| 175 | pj_scan_restore_state(&scanner_, state);
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| 176 | }
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| 177 |
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| 178 | int get_pos_line() const
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| 179 | {
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| 180 | return scanner_.line;
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| 181 | }
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| 182 |
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| 183 | int get_pos_col() const
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| 184 | {
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| 185 | return scanner_.col;
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| 186 | }
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| 187 |
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| 188 |
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| 189 | private:
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| 190 | pj_scanner scanner_;
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| 191 | };
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| 192 |
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| 193 | #endif /* __PJPP_SCANNER_HPP__ */
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| 194 |
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