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Diffstat (limited to 'pjlib/include/pj++/scanner.hpp')
| -rw-r--r-- | pjlib/include/pj++/scanner.hpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/pjlib/include/pj++/scanner.hpp b/pjlib/include/pj++/scanner.hpp new file mode 100644 index 0000000..a3de6d8 --- /dev/null +++ b/pjlib/include/pj++/scanner.hpp @@ -0,0 +1,246 @@ +/* $Id: scanner.hpp 2394 2008-12-23 17:27:53Z bennylp $ */ +/* + * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef __PJPP_SCANNER_HPP__ +#define __PJPP_SCANNER_HPP__ + +#include <pjlib-util/scanner.h> +#include <pj++/string.hpp> + +class Pj_Cis; +class Pj_Cis_Buffer; +class Pj_Scanner; + +class Pj_Cis_Buffer +{ + friend class Pj_Cis; + +public: + Pj_Cis_Buffer() + { + pj_cis_buf_init(&buf_); + } + +private: + pj_cis_buf_t buf_; +}; + + +class Pj_Cis +{ + friend class Pj_Scanner; + +public: + Pj_Cis(Pj_Cis_Buffer *buf) + { + pj_cis_init(&buf->buf_, &cis_); + } + + Pj_Cis(const Pj_Cis &rhs) + { + pj_cis_dup(&cis_, (pj_cis_t*)&rhs.cis_); + } + + void add_range(int start, int end) + { + pj_cis_add_range(&cis_, start, end); + } + + void add_alpha() + { + pj_cis_add_alpha(&cis_); + } + + void add_num() + { + pj_cis_add_num(&cis_); + } + + void add_str(const char *str) + { + pj_cis_add_str(&cis_, str); + } + + void add_cis(const Pj_Cis &rhs) + { + pj_cis_add_cis(&cis_, &rhs.cis_); + } + + void del_range(int start, int end) + { + pj_cis_del_range(&cis_, start, end); + } + + void del_str(const char *str) + { + pj_cis_del_str(&cis_, str); + } + + void invert() + { + pj_cis_invert(&cis_); + } + + bool match(int c) const + { + return pj_cis_match(&cis_, c) != 0; + } + +private: + pj_cis_t cis_; +}; + + + +class Pj_Scanner +{ +public: + Pj_Scanner() {} + + enum + { + SYNTAX_ERROR = 101 + }; + static void syntax_error_handler_throw_pj(pj_scanner *); + + typedef pj_scan_state State; + + void init(char *buf, int len, unsigned options=PJ_SCAN_AUTOSKIP_WS, + pj_syn_err_func_ptr callback = &syntax_error_handler_throw_pj) + { + pj_scan_init(&scanner_, buf, len, options, callback); + } + + void fini() + { + pj_scan_fini(&scanner_); + } + + int eof() const + { + return pj_scan_is_eof(&scanner_); + } + + int peek_char() const + { + return *scanner_.curptr; + } + + int peek(const Pj_Cis *cis, Pj_String *out) + { + return pj_scan_peek(&scanner_, &cis->cis_, out); + } + + int peek_n(pj_size_t len, Pj_String *out) + { + return pj_scan_peek_n(&scanner_, len, out); + } + + int peek_until(const Pj_Cis *cis, Pj_String *out) + { + return pj_scan_peek_until(&scanner_, &cis->cis_, out); + } + + void get(const Pj_Cis *cis, Pj_String *out) + { + pj_scan_get(&scanner_, &cis->cis_, out); + } + + void get_n(unsigned N, Pj_String *out) + { + pj_scan_get_n(&scanner_, N, out); + } + + int get_char() + { + return pj_scan_get_char(&scanner_); + } + + void get_quote(int begin_quote, int end_quote, Pj_String *out) + { + pj_scan_get_quote(&scanner_, begin_quote, end_quote, out); + } + + void get_newline() + { + pj_scan_get_newline(&scanner_); + } + + void get_until(const Pj_Cis *cis, Pj_String *out) + { + pj_scan_get_until(&scanner_, &cis->cis_, out); + } + + void get_until_ch(int until_ch, Pj_String *out) + { + pj_scan_get_until_ch(&scanner_, until_ch, out); + } + + void get_until_chr(const char *spec, Pj_String *out) + { + pj_scan_get_until_chr(&scanner_, spec, out); + } + + void advance_n(unsigned N, bool skip_ws=true) + { + pj_scan_advance_n(&scanner_, N, skip_ws); + } + + int strcmp(const char *s, int len) + { + return pj_scan_strcmp(&scanner_, s, len); + } + + int stricmp(const char *s, int len) + { + return pj_scan_stricmp(&scanner_, s, len); + } + + void skip_ws() + { + pj_scan_skip_whitespace(&scanner_); + } + + void save_state(State *state) const + { + pj_scan_save_state(&scanner_, state); + } + + void restore_state(State *state) + { + pj_scan_restore_state(&scanner_, state); + } + + int get_pos_line() const + { + return scanner_.line; + } + + int get_pos_col() const + { + return pj_scan_get_col(&scanner_); + } + + +private: + pj_scanner scanner_; +}; + +#endif /* __PJPP_SCANNER_HPP__ */ + |