Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program 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 |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #ifndef __PJPP_SCANNER_HPP__ |
| 21 | #define __PJPP_SCANNER_HPP__ |
| 22 | |
| 23 | #include <pjlib-util/scanner.h> |
| 24 | #include <pj++/string.hpp> |
| 25 | |
| 26 | class Pj_Cis; |
| 27 | class Pj_Cis_Buffer; |
| 28 | class Pj_Scanner; |
| 29 | |
| 30 | class Pj_Cis_Buffer |
| 31 | { |
| 32 | friend class Pj_Cis; |
| 33 | |
| 34 | public: |
| 35 | Pj_Cis_Buffer() |
| 36 | { |
| 37 | pj_cis_buf_init(&buf_); |
| 38 | } |
| 39 | |
| 40 | private: |
| 41 | pj_cis_buf_t buf_; |
| 42 | }; |
| 43 | |
| 44 | |
| 45 | class Pj_Cis |
| 46 | { |
| 47 | friend class Pj_Scanner; |
| 48 | |
| 49 | public: |
| 50 | Pj_Cis(Pj_Cis_Buffer *buf) |
| 51 | { |
| 52 | pj_cis_init(&buf->buf_, &cis_); |
| 53 | } |
| 54 | |
| 55 | Pj_Cis(const Pj_Cis &rhs) |
| 56 | { |
| 57 | pj_cis_dup(&cis_, (pj_cis_t*)&rhs.cis_); |
| 58 | } |
| 59 | |
| 60 | void add_range(int start, int end) |
| 61 | { |
| 62 | pj_cis_add_range(&cis_, start, end); |
| 63 | } |
| 64 | |
| 65 | void add_alpha() |
| 66 | { |
| 67 | pj_cis_add_alpha(&cis_); |
| 68 | } |
| 69 | |
| 70 | void add_num() |
| 71 | { |
| 72 | pj_cis_add_num(&cis_); |
| 73 | } |
| 74 | |
| 75 | void add_str(const char *str) |
| 76 | { |
| 77 | pj_cis_add_str(&cis_, str); |
| 78 | } |
| 79 | |
| 80 | void add_cis(const Pj_Cis &rhs) |
| 81 | { |
| 82 | pj_cis_add_cis(&cis_, &rhs.cis_); |
| 83 | } |
| 84 | |
| 85 | void del_range(int start, int end) |
| 86 | { |
| 87 | pj_cis_del_range(&cis_, start, end); |
| 88 | } |
| 89 | |
| 90 | void del_str(const char *str) |
| 91 | { |
| 92 | pj_cis_del_str(&cis_, str); |
| 93 | } |
| 94 | |
| 95 | void invert() |
| 96 | { |
| 97 | pj_cis_invert(&cis_); |
| 98 | } |
| 99 | |
| 100 | bool match(int c) const |
| 101 | { |
| 102 | return pj_cis_match(&cis_, c) != 0; |
| 103 | } |
| 104 | |
| 105 | private: |
| 106 | pj_cis_t cis_; |
| 107 | }; |
| 108 | |
| 109 | |
| 110 | |
| 111 | class Pj_Scanner |
| 112 | { |
| 113 | public: |
| 114 | Pj_Scanner() {} |
| 115 | |
| 116 | enum |
| 117 | { |
| 118 | SYNTAX_ERROR = 101 |
| 119 | }; |
| 120 | static void syntax_error_handler_throw_pj(pj_scanner *); |
| 121 | |
| 122 | typedef pj_scan_state State; |
| 123 | |
| 124 | void init(char *buf, int len, unsigned options=PJ_SCAN_AUTOSKIP_WS, |
| 125 | pj_syn_err_func_ptr callback = &syntax_error_handler_throw_pj) |
| 126 | { |
| 127 | pj_scan_init(&scanner_, buf, len, options, callback); |
| 128 | } |
| 129 | |
| 130 | void fini() |
| 131 | { |
| 132 | pj_scan_fini(&scanner_); |
| 133 | } |
| 134 | |
| 135 | int eof() const |
| 136 | { |
| 137 | return pj_scan_is_eof(&scanner_); |
| 138 | } |
| 139 | |
| 140 | int peek_char() const |
| 141 | { |
| 142 | return *scanner_.curptr; |
| 143 | } |
| 144 | |
| 145 | int peek(const Pj_Cis *cis, Pj_String *out) |
| 146 | { |
| 147 | return pj_scan_peek(&scanner_, &cis->cis_, out); |
| 148 | } |
| 149 | |
| 150 | int peek_n(pj_size_t len, Pj_String *out) |
| 151 | { |
| 152 | return pj_scan_peek_n(&scanner_, len, out); |
| 153 | } |
| 154 | |
| 155 | int peek_until(const Pj_Cis *cis, Pj_String *out) |
| 156 | { |
| 157 | return pj_scan_peek_until(&scanner_, &cis->cis_, out); |
| 158 | } |
| 159 | |
| 160 | void get(const Pj_Cis *cis, Pj_String *out) |
| 161 | { |
| 162 | pj_scan_get(&scanner_, &cis->cis_, out); |
| 163 | } |
| 164 | |
| 165 | void get_n(unsigned N, Pj_String *out) |
| 166 | { |
| 167 | pj_scan_get_n(&scanner_, N, out); |
| 168 | } |
| 169 | |
| 170 | int get_char() |
| 171 | { |
| 172 | return pj_scan_get_char(&scanner_); |
| 173 | } |
| 174 | |
| 175 | void get_quote(int begin_quote, int end_quote, Pj_String *out) |
| 176 | { |
| 177 | pj_scan_get_quote(&scanner_, begin_quote, end_quote, out); |
| 178 | } |
| 179 | |
| 180 | void get_newline() |
| 181 | { |
| 182 | pj_scan_get_newline(&scanner_); |
| 183 | } |
| 184 | |
| 185 | void get_until(const Pj_Cis *cis, Pj_String *out) |
| 186 | { |
| 187 | pj_scan_get_until(&scanner_, &cis->cis_, out); |
| 188 | } |
| 189 | |
| 190 | void get_until_ch(int until_ch, Pj_String *out) |
| 191 | { |
| 192 | pj_scan_get_until_ch(&scanner_, until_ch, out); |
| 193 | } |
| 194 | |
| 195 | void get_until_chr(const char *spec, Pj_String *out) |
| 196 | { |
| 197 | pj_scan_get_until_chr(&scanner_, spec, out); |
| 198 | } |
| 199 | |
| 200 | void advance_n(unsigned N, bool skip_ws=true) |
| 201 | { |
| 202 | pj_scan_advance_n(&scanner_, N, skip_ws); |
| 203 | } |
| 204 | |
| 205 | int strcmp(const char *s, int len) |
| 206 | { |
| 207 | return pj_scan_strcmp(&scanner_, s, len); |
| 208 | } |
| 209 | |
| 210 | int stricmp(const char *s, int len) |
| 211 | { |
| 212 | return pj_scan_stricmp(&scanner_, s, len); |
| 213 | } |
| 214 | |
| 215 | void skip_ws() |
| 216 | { |
| 217 | pj_scan_skip_whitespace(&scanner_); |
| 218 | } |
| 219 | |
| 220 | void save_state(State *state) const |
| 221 | { |
| 222 | pj_scan_save_state(&scanner_, state); |
| 223 | } |
| 224 | |
| 225 | void restore_state(State *state) |
| 226 | { |
| 227 | pj_scan_restore_state(&scanner_, state); |
| 228 | } |
| 229 | |
| 230 | int get_pos_line() const |
| 231 | { |
| 232 | return scanner_.line; |
| 233 | } |
| 234 | |
| 235 | int get_pos_col() const |
| 236 | { |
| 237 | return pj_scan_get_col(&scanner_); |
| 238 | } |
| 239 | |
| 240 | |
| 241 | private: |
| 242 | pj_scanner scanner_; |
| 243 | }; |
| 244 | |
| 245 | #endif /* __PJPP_SCANNER_HPP__ */ |
| 246 | |