125 lines
4.5 KiB
C
125 lines
4.5 KiB
C
/****************************************************************************
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** Copyright (c) 2017, Fougue Ltd. <http://www.fougue.pro>
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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**
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** 2. Redistributions in binary form must reproduce the above
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** copyright notice, this list of conditions and the following
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** disclaimer in the documentation and/or other materials provided
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** with the distribution.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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****************************************************************************/
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#pragma once
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#include "../../gmio_core/global.h"
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#include "../../gmio_core/stream.h"
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#include "../../gmio_core/internal/stringstream.h"
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/* gmio_stla_token */
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enum gmio_stla_token
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{
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null_token = 0,
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ENDFACET_token,
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ENDLOOP_token,
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ENDSOLID_token,
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FACET_token,
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LOOP_token,
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NORMAL_token,
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OUTER_token,
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SOLID_token,
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VERTEX_token,
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ID_token,
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FLOAT_token = ID_token,
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empty_token,
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unknown_token
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};
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/* struct gmio_stringstream_stla_cookie */
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struct gmio_stringstream_stla_cookie
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{
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/* Copy of gmio_stla_read() corresponding argument */
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const struct gmio_task_iface* task;
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/* Cache for the input stream size */
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gmio_streamsize_t stream_size;
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/* Offset (in bytes) from beginning of stream : current position */
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gmio_streamoffset_t stream_offset;
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/* Cache for gmio_task_iface::func_is_stop_requested() */
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bool is_stop_requested;
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};
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/* gmio_stla_parse_data */
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struct gmio_stla_parse_data
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{
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/* Current token type */
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enum gmio_stla_token token;
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/* Current token string */
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struct gmio_string token_str;
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/* Any actual error ? */
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bool error;
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/* The stringstream object used to read the input stream */
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struct gmio_stringstream strstream;
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/* The cookie in strstream */
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struct gmio_stringstream_stla_cookie strstream_cookie;
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/* The mesh creator callbacks */
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struct gmio_stl_mesh_creator* creator;
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};
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/* Fixed maximum length of any gmio_string when parsing */
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enum { GMIO_STLA_READ_STRING_MAX_LEN = 1024 };
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/* Used as general STLA parsing error code */
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enum { GMIO_STLA_PARSE_ERROR = 1 };
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/* --------------------------------------------------------------------------
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* Functions
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* -------------------------------------------------------------------------- */
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/* Qualifies input string as a token */
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enum gmio_stla_token gmio_stla_find_token(const char* word, size_t word_len);
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/* Parses the (optional) solid name that appears after token "solid" */
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int gmio_stla_parse_solidname_beg(struct gmio_stla_parse_data* data);
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/* Eats next token string and checks it against an expected token
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*
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* This procedure copies the token string into internal
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* struct gmio_stla_parse_data::strbuff
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*/
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int gmio_stla_eat_next_token(
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struct gmio_stla_parse_data* data, enum gmio_stla_token expected_token);
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/* Eats next token string and checks it against an expected token
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*
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* This procedure does the same thing as parsing_eat_next_token() but is faster
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* as it does not copy the token string(it just "reads" it).
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* It performs "in-place" case insensitive string comparison of the current
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* token string against expected
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*/
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int gmio_stla_eat_next_token_inplace(
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struct gmio_stla_parse_data* data, enum gmio_stla_token expected_token);
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/* Eats contents until some expected "end" token is matched
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*
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* Array \p end_tokens must end with a "null_token" item
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*/
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int gmio_stla_eat_until_token(
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struct gmio_stla_parse_data* data, const enum gmio_stla_token* end_tokens);
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