From 41c83570cd0b176c663b583e5990f9869f214754 Mon Sep 17 00:00:00 2001 From: Ingo Schwarze Date: Thu, 13 Dec 2018 03:40:13 +0000 Subject: 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. --- eqn_parse.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 eqn_parse.h (limited to 'eqn_parse.h') diff --git a/eqn_parse.h b/eqn_parse.h new file mode 100644 index 00000000..873720b2 --- /dev/null +++ b/eqn_parse.h @@ -0,0 +1,49 @@ +/* $Id: eqn_parse.h,v 1.1 2018/12/13 03:40:13 schwarze Exp $ */ +/* + * Copyright (c) 2011 Kristaps Dzonsons + * Copyright (c) 2014, 2017 Ingo Schwarze + * + * 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 *); -- cgit v1.2.3-56-ge451