File: [cvsweb.bsd.lv] / mandoc / eqn_parse.h (download)
Revision 1.1, Thu Dec 13 03:40:13 2018 UTC (5 years, 4 months ago) by schwarze
Branch: MAIN
Cleanup, no functional change:
In libroff.h, nothing was left except the eqn(7) parser interface, which
isn't really part of the roff(7) parser, so rename it to eqn_parse.h.
While here, move struct eqn_def to eqn.c because that's the only
file using it, and let eqn_box_free() and eqn_free() handle NULL.
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/* $Id: eqn_parse.h,v 1.1 2018/12/13 03:40:13 schwarze Exp $ */
/*
* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2014, 2017 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* External interface of the eqn(7) parser.
* For use in the roff(7) and eqn(7) parsers only.
*/
struct mparse;
struct roff_node;
struct eqn_box;
struct eqn_def;
struct eqn_node {
struct mparse *parse; /* Main parser, for error reporting. */
struct roff_node *node; /* Syntax tree of this equation. */
struct eqn_def *defs; /* Array of definitions. */
char *data; /* Source code of this equation. */
char *start; /* First byte of the current token. */
char *end; /* First byte of the next token. */
size_t defsz; /* Number of definitions. */
size_t sz; /* Length of the source code. */
size_t toksz; /* Length of the current token. */
int gsize; /* Default point size. */
int delim; /* In-line delimiters enabled. */
char odelim; /* In-line opening delimiter. */
char cdelim; /* In-line closing delimiter. */
};
struct eqn_node *eqn_alloc(struct mparse *);
void eqn_box_free(struct eqn_box *);
void eqn_free(struct eqn_node *);
void eqn_parse(struct eqn_node *);
void eqn_read(struct eqn_node *, const char *);
void eqn_reset(struct eqn_node *);