tradcpp K&R-style C preprocessor: directive.h annotate

annotate directive.h @ 203:3a25180d3a5c

Abort on line numbering or column numbering overflow. Line numbers are limited to values that fit in "unsigned int". Also reject input lines longer than 2^32-1 characters. It seems reasonable to presume that any input that violates these constraints is someone screwing around and not a serious attempt to compile or preprocess anything useful. Done in response to n2129, but without getting into any of the silliness found there.

author	David A. Holland
date	Tue, 01 Aug 2017 14:51:04 -0400
parents	f14f5352956c
children

rev	line source
30 76c114899f63 copyrights David A. Holland parents: 15 diff changeset	1 /*-
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	2 * Copyright (c) 2010 The NetBSD Foundation, Inc.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	3 * All rights reserved.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	4 *
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	5 * This code is derived from software contributed to The NetBSD Foundation
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	6 * by David A. Holland.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	7 *
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	8 * Redistribution and use in source and binary forms, with or without
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	9 * modification, are permitted provided that the following conditions
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	10 * are met:
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	11 * 1. Redistributions of source code must retain the above copyright
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	12 * notice, this list of conditions and the following disclaimer.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	13 * 2. Redistributions in binary form must reproduce the above copyright
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	14 * notice, this list of conditions and the following disclaimer in the
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	15 * documentation and/or other materials provided with the distribution.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	16 *
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	27 * POSSIBILITY OF SUCH DAMAGE.
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	28 */
76c114899f63 copyrights David A. Holland parents: 15 diff changeset	29
15 f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	30 #include <stddef.h>
f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	31
154 a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	32 #include "place.h"
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	33
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	34 /*
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	35 * Relevant places while we're processing a line:
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	36 * the place in the current line
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	37 * the beginning of the next line
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	38 */
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	39 struct lineplace {
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	40 struct place current;
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	41 struct place nextline;
a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	42 };
15 f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	43
f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	44 void directive_init(void);
f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	45 void directive_cleanup(void);
f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	46
154 a2c2fe8dbea3 Wrap up the current and next line position when invoking directives. David A. Holland parents: 30 diff changeset	47 void directive_gotline(struct lineplace lp, char line, size_t len);
15 f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	48 void directive_goteof(struct place *p);
f6177d3ed5c2 handle directives David A. Holland parents: diff changeset	49

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annotate directive.h @ 203:3a25180d3a5c