Benny Prijono | 5dcb38d | 2005-11-21 01:55:47 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | #ifndef __PJPP_SCANNER_HPP__ |
| 20 | #define __PJPP_SCANNER_HPP__ |
| 21 | |
| 22 | #include <pjlib-util/scanner.h> |
| 23 | #include <pj++/string.hpp> |
| 24 | |
| 25 | class Pj_Char_Spec |
| 26 | { |
| 27 | public: |
| 28 | Pj_Char_Spec() { pj_cs_init(cs__); } |
| 29 | |
| 30 | void set(int c) { pj_cs_set(cs__, c); } |
| 31 | void add_range(int begin, int end) { pj_cs_add_range(cs__, begin, end); } |
| 32 | void add_alpha() { pj_cs_add_alpha(cs__); } |
| 33 | void add_num() { pj_cs_add_num(cs__); } |
| 34 | void add_str(const char *str) { pj_cs_add_str(cs__, str); } |
| 35 | void del_range(int begin, int end) { pj_cs_del_range(cs__, begin, end); } |
| 36 | void del_str(const char *str) { pj_cs_del_str(cs__, str); } |
| 37 | void invert() { pj_cs_invert(cs__); } |
| 38 | int match(int c) { return pj_cs_match(cs__, c); } |
| 39 | |
| 40 | pj_char_spec_element_t *cs_() |
| 41 | { |
| 42 | return cs__; |
| 43 | } |
| 44 | |
| 45 | const pj_char_spec_element_t *cs_() const |
| 46 | { |
| 47 | return cs__; |
| 48 | } |
| 49 | |
| 50 | private: |
| 51 | pj_char_spec cs__; |
| 52 | }; |
| 53 | |
| 54 | class Pj_Scanner |
| 55 | { |
| 56 | public: |
| 57 | Pj_Scanner() {} |
| 58 | |
| 59 | enum |
| 60 | { |
| 61 | SYNTAX_ERROR = 101 |
| 62 | }; |
| 63 | static void syntax_error_handler_throw_pj(pj_scanner *); |
| 64 | |
| 65 | typedef pj_scan_state State; |
| 66 | |
| 67 | void init(char *buf, int len, unsigned options=PJ_SCAN_AUTOSKIP_WS, |
| 68 | pj_syn_err_func_ptr callback = &syntax_error_handler_throw_pj) |
| 69 | { |
| 70 | pj_scan_init(&scanner_, buf, len, options, callback); |
| 71 | } |
| 72 | |
| 73 | void fini() |
| 74 | { |
| 75 | pj_scan_fini(&scanner_); |
| 76 | } |
| 77 | |
| 78 | int eof() const |
| 79 | { |
| 80 | return pj_scan_is_eof(&scanner_); |
| 81 | } |
| 82 | |
| 83 | int peek_char() const |
| 84 | { |
| 85 | return *scanner_.curptr; |
| 86 | } |
| 87 | |
| 88 | int peek(const Pj_Char_Spec *cs, Pj_String *out) |
| 89 | { |
| 90 | return pj_scan_peek(&scanner_, cs->cs_(), out); |
| 91 | } |
| 92 | |
| 93 | int peek_n(pj_size_t len, Pj_String *out) |
| 94 | { |
| 95 | return pj_scan_peek_n(&scanner_, len, out); |
| 96 | } |
| 97 | |
| 98 | int peek_until(const Pj_Char_Spec *cs, Pj_String *out) |
| 99 | { |
| 100 | return pj_scan_peek_until(&scanner_, cs->cs_(), out); |
| 101 | } |
| 102 | |
| 103 | void get(const Pj_Char_Spec *cs, Pj_String *out) |
| 104 | { |
| 105 | pj_scan_get(&scanner_, cs->cs_(), out); |
| 106 | } |
| 107 | |
| 108 | void get_n(unsigned N, Pj_String *out) |
| 109 | { |
| 110 | pj_scan_get_n(&scanner_, N, out); |
| 111 | } |
| 112 | |
| 113 | int get_char() |
| 114 | { |
| 115 | return pj_scan_get_char(&scanner_); |
| 116 | } |
| 117 | |
| 118 | void get_quote(int begin_quote, int end_quote, Pj_String *out) |
| 119 | { |
| 120 | pj_scan_get_quote(&scanner_, begin_quote, end_quote, out); |
| 121 | } |
| 122 | |
| 123 | void get_newline() |
| 124 | { |
| 125 | pj_scan_get_newline(&scanner_); |
| 126 | } |
| 127 | |
| 128 | void get_until(const Pj_Char_Spec *cs, Pj_String *out) |
| 129 | { |
| 130 | pj_scan_get_until(&scanner_, cs->cs_(), out); |
| 131 | } |
| 132 | |
| 133 | void get_until_ch(int until_ch, Pj_String *out) |
| 134 | { |
| 135 | pj_scan_get_until_ch(&scanner_, until_ch, out); |
| 136 | } |
| 137 | |
| 138 | void get_until_chr(const char *spec, Pj_String *out) |
| 139 | { |
| 140 | pj_scan_get_until_chr(&scanner_, spec, out); |
| 141 | } |
| 142 | |
| 143 | void advance_n(unsigned N, bool skip_ws=true) |
| 144 | { |
| 145 | pj_scan_advance_n(&scanner_, N, skip_ws); |
| 146 | } |
| 147 | |
| 148 | int strcmp(const char *s, int len) |
| 149 | { |
| 150 | return pj_scan_strcmp(&scanner_, s, len); |
| 151 | } |
| 152 | |
| 153 | int stricmp(const char *s, int len) |
| 154 | { |
| 155 | return pj_scan_stricmp(&scanner_, s, len); |
| 156 | } |
| 157 | |
| 158 | void skip_ws() |
| 159 | { |
| 160 | pj_scan_skip_whitespace(&scanner_); |
| 161 | } |
| 162 | |
| 163 | void save_state(State *state) |
| 164 | { |
| 165 | pj_scan_save_state(&scanner_, state); |
| 166 | } |
| 167 | |
| 168 | void restore_state(State *state) |
| 169 | { |
| 170 | pj_scan_restore_state(&scanner_, state); |
| 171 | } |
| 172 | |
| 173 | int get_pos_line() const |
| 174 | { |
| 175 | return scanner_.line; |
| 176 | } |
| 177 | |
| 178 | int get_pos_col() const |
| 179 | { |
| 180 | return scanner_.col; |
| 181 | } |
| 182 | |
| 183 | |
| 184 | private: |
| 185 | pj_scanner scanner_; |
| 186 | }; |
| 187 | |
| 188 | #endif /* __PJPP_SCANNER_HPP__ */ |
| 189 | |