323 lines
14 KiB
C
323 lines
14 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1985 Sun Microsystems, Inc.
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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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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* 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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#define BACKSLASH '\\'
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#define bufsize 200 /* size of internal buffers */
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#define sc_size 5000 /* size of save_com buffer */
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#define label_offset 2 /* number of levels a label is placed to left
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* of code */
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#define false 0
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#define true 1
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FILE *input; /* the fid for the input file */
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FILE *output; /* the output file */
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#define CHECK_SIZE_CODE(desired_size) \
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if (e_code + (desired_size) >= l_code) { \
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int nsize = l_code-s_code + 400 + desired_size; \
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int code_len = e_code-s_code; \
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codebuf = (char *) realloc(codebuf, nsize); \
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if (codebuf == NULL) \
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err(1, NULL); \
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e_code = codebuf + code_len + 1; \
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l_code = codebuf + nsize - 5; \
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s_code = codebuf + 1; \
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}
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#define CHECK_SIZE_COM(desired_size) \
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if (e_com + (desired_size) >= l_com) { \
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int nsize = l_com-s_com + 400 + desired_size; \
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int com_len = e_com - s_com; \
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int blank_pos; \
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if (last_bl != NULL) \
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blank_pos = last_bl - combuf; \
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else \
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blank_pos = -1; \
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combuf = (char *) realloc(combuf, nsize); \
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if (combuf == NULL) \
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err(1, NULL); \
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e_com = combuf + com_len + 1; \
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if (blank_pos > 0) \
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last_bl = combuf + blank_pos; \
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l_com = combuf + nsize - 5; \
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s_com = combuf + 1; \
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}
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#define CHECK_SIZE_LAB(desired_size) \
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if (e_lab + (desired_size) >= l_lab) { \
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int nsize = l_lab-s_lab + 400 + desired_size; \
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int label_len = e_lab - s_lab; \
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labbuf = (char *) realloc(labbuf, nsize); \
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if (labbuf == NULL) \
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err(1, NULL); \
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e_lab = labbuf + label_len + 1; \
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l_lab = labbuf + nsize - 5; \
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s_lab = labbuf + 1; \
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}
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#define CHECK_SIZE_TOKEN(desired_size) \
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if (e_token + (desired_size) >= l_token) { \
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int nsize = l_token-s_token + 400 + desired_size; \
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int token_len = e_token - s_token; \
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tokenbuf = (char *) realloc(tokenbuf, nsize); \
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if (tokenbuf == NULL) \
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err(1, NULL); \
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e_token = tokenbuf + token_len + 1; \
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l_token = tokenbuf + nsize - 5; \
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s_token = tokenbuf + 1; \
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}
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char *labbuf; /* buffer for label */
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char *s_lab; /* start ... */
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char *e_lab; /* .. and end of stored label */
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char *l_lab; /* limit of label buffer */
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char *codebuf; /* buffer for code section */
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char *s_code; /* start ... */
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char *e_code; /* .. and end of stored code */
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char *l_code; /* limit of code section */
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char *combuf; /* buffer for comments */
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char *s_com; /* start ... */
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char *e_com; /* ... and end of stored comments */
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char *l_com; /* limit of comment buffer */
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#define token s_token
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char *tokenbuf; /* the last token scanned */
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char *s_token;
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char *e_token;
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char *l_token;
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char *in_buffer; /* input buffer */
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char *in_buffer_limit; /* the end of the input buffer */
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char *buf_ptr; /* ptr to next character to be taken from
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* in_buffer */
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char *buf_end; /* ptr to first after last char in in_buffer */
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char sc_buf[sc_size]; /* input text is saved here when looking for
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* the brace after an if, while, etc */
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char *save_com; /* start of the comment stored in sc_buf */
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char *sc_end; /* pointer into save_com buffer */
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char *bp_save; /* saved value of buf_ptr when taking input
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* from save_com */
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char *be_save; /* similarly saved value of buf_end */
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int found_err;
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int blanklines_after_declarations;
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int blanklines_before_blockcomments;
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int blanklines_after_procs;
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int blanklines_around_conditional_compilation;
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int swallow_optional_blanklines;
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int n_real_blanklines;
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int prefix_blankline_requested;
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int postfix_blankline_requested;
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int break_comma; /* when true and not in parens, break after a
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* comma */
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int btype_2; /* when true, brace should be on same line as
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* if, while, etc */
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float case_ind; /* indentation level to be used for a "case
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* n:" */
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int code_lines; /* count of lines with code */
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int had_eof; /* set to true when input is exhausted */
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int line_no; /* the current line number. */
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int max_col; /* the maximum allowable line length */
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int verbose; /* when true, non-essential error messages are
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* printed */
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int cuddle_else; /* true if else should cuddle up to '}' */
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int star_comment_cont; /* true iff comment continuation lines should
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* have stars at the beginning of each line. */
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int comment_delimiter_on_blankline;
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int procnames_start_line; /* if true, the names of procedures
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* being defined get placed in column
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* 1 (ie. a newline is placed between
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* the type of the procedure and its
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* name) */
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int proc_calls_space; /* If true, procedure calls look like:
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* foo (bar) rather than foo(bar) */
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int format_block_comments; /* true if comments beginning with
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* `/ * \n' are to be reformatted */
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int format_col1_comments; /* If comments which start in column 1
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* are to be magically reformatted
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* (just like comments that begin in
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* later columns) */
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int inhibit_formatting; /* true if INDENT OFF is in effect */
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int suppress_blanklines;/* set iff following blanklines should be
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* suppressed */
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int continuation_indent;/* set to the indentation between the edge of
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* code and continuation lines */
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int lineup_to_parens; /* if true, continued code within parens will
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* be lined up to the open paren */
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int lineup_to_parens_always; /* if true, do not attempt to keep
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* lined-up code within the margin */
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int Bill_Shannon; /* true iff a blank should always be inserted
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* after sizeof */
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int blanklines_after_declarations_at_proctop; /* This is vaguely
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* similar to
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* blanklines_after_decla
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* rations except that
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* it only applies to
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* the first set of
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* declarations in a
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* procedure (just after
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* the first '{') and it
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* causes a blank line
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* to be generated even
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* if there are no
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* declarations */
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int block_comment_max_col;
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int extra_expression_indent; /* true if continuation lines from the
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* expression part of "if(e)",
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* "while(e)", "for(e;e;e)" should be
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* indented an extra tab stop so that
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* they don't conflict with the code
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* that follows */
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int function_brace_split; /* split function declaration and
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* brace onto separate lines */
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int use_tabs; /* set true to use tabs for spacing,
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* false uses all spaces */
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int auto_typedefs; /* set true to recognize identifiers
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* ending in "_t" like typedefs */
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int space_after_cast; /* "b = (int) a" vs "b = (int)a" */
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int tabsize; /* the size of a tab */
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struct parser_state {
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int last_token;
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int p_stack[256]; /* this is the parsers stack */
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int il[64]; /* this stack stores indentation levels */
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float cstk[32]; /* used to store case stmt indentation levels */
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int box_com; /* set to true when we are in a "boxed"
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* comment. In that case, the first non-blank
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* char should be lined up with the / in / followed by * */
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int comment_delta; /* used to set up indentation for all lines
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* of a boxed comment after the first one */
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int n_comment_delta;/* remembers how many columns there were
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* before the start of a box comment so that
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* forthcoming lines of the comment are
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* indented properly */
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int cast_mask; /* indicates which close parens potentially
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* close off casts */
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int not_cast_mask; /* indicates which close parens definitely
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* close off something else than casts */
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int block_init; /* true iff inside a block initialization */
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int block_init_level; /* The level of brace nesting in an
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* initialization */
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int last_nl; /* this is true if the last thing scanned was
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* a newline */
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int in_or_st; /* Will be true iff there has been a
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* declarator (e.g. int or char) and no left
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* paren since the last semicolon. When true,
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* a '{' is starting a structure definition or
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* an initialization list */
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int bl_line; /* set to 1 by dump_line if the line is blank */
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int col_1; /* set to true if the last token started in
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* column 1 */
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int com_col; /* this is the column in which the current
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* comment should start */
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int com_ind; /* the column in which comments to the right
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* of code should start */
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int com_lines; /* the number of lines with comments, set by
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* dump_line */
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int dec_nest; /* current nesting level for structure or init */
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int decl_com_ind; /* the column in which comments after
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* declarations should be put */
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int decl_on_line; /* set to true if this line of code has part
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* of a declaration on it */
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int i_l_follow; /* the level to which ind_level should be set
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* after the current line is printed */
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int in_decl; /* set to true when we are in a declaration
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* stmt. The processing of braces is then
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* slightly different */
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int in_stmt; /* set to 1 while in a stmt */
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int ind_level; /* the current indentation level */
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int ind_size; /* the size of one indentation level */
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int ind_stmt; /* set to 1 if next line should have an extra
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* indentation level because we are in the
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* middle of a stmt */
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int last_u_d; /* set to true after scanning a token which
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* forces a following operator to be unary */
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int leave_comma; /* if true, never break declarations after
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* commas */
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int ljust_decl; /* true if declarations should be left
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* justified */
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int out_coms; /* the number of comments processed, set by
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* pr_comment */
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int out_lines; /* the number of lines written, set by
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* dump_line */
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int p_l_follow; /* used to remember how to indent following
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* statement */
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int paren_level; /* parenthesization level. used to indent
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* within statements */
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short paren_indents[20]; /* column positions of each paren */
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int pcase; /* set to 1 if the current line label is a
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* case. It is printed differently from a
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* regular label */
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int search_brace; /* set to true by parse when it is necessary
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* to buffer up all info up to the start of a
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* stmt after an if, while, etc */
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int unindent_displace; /* comments not to the right of code
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* will be placed this many
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* indentation levels to the left of
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* code */
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int use_ff; /* set to one if the current line should be
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* terminated with a form feed */
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int want_blank; /* set to true when the following token should
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* be prefixed by a blank. (Said prefixing is
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* ignored in some cases.) */
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int else_if; /* True iff else if pairs should be handled
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* specially */
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int decl_indent; /* column to indent declared identifiers to */
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int local_decl_indent; /* like decl_indent but for locals */
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int keyword; /* the type of a keyword or 0 */
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int dumped_decl_indent;
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float case_indent; /* The distance to indent case labels from the
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* switch statement */
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int in_parameter_declaration;
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int indent_parameters;
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int tos; /* pointer to top of stack */
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char procname[100]; /* The name of the current procedure */
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int just_saw_decl;
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} ps;
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int ifdef_level;
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struct parser_state state_stack[5];
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struct parser_state match_state[5];
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