mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-22 02:37:15 +00:00
bdcbfde31e
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
324 lines
14 KiB
C
324 lines
14 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-4-Clause
|
|
*
|
|
* Copyright (c) 1985 Sun Microsystems, Inc.
|
|
* Copyright (c) 1980, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#define BACKSLASH '\\'
|
|
#define bufsize 200 /* size of internal buffers */
|
|
#define sc_size 5000 /* size of save_com buffer */
|
|
#define label_offset 2 /* number of levels a label is placed to left
|
|
* of code */
|
|
|
|
|
|
#define false 0
|
|
#define true 1
|
|
|
|
|
|
extern FILE *input; /* the fid for the input file */
|
|
extern FILE *output; /* the output file */
|
|
|
|
#define CHECK_SIZE_CODE(desired_size) \
|
|
if (e_code + (desired_size) >= l_code) { \
|
|
int nsize = l_code-s_code + 400 + desired_size; \
|
|
int code_len = e_code-s_code; \
|
|
codebuf = (char *) realloc(codebuf, nsize); \
|
|
if (codebuf == NULL) \
|
|
err(1, NULL); \
|
|
e_code = codebuf + code_len + 1; \
|
|
l_code = codebuf + nsize - 5; \
|
|
s_code = codebuf + 1; \
|
|
}
|
|
#define CHECK_SIZE_COM(desired_size) \
|
|
if (e_com + (desired_size) >= l_com) { \
|
|
int nsize = l_com-s_com + 400 + desired_size; \
|
|
int com_len = e_com - s_com; \
|
|
int blank_pos; \
|
|
if (last_bl != NULL) \
|
|
blank_pos = last_bl - combuf; \
|
|
else \
|
|
blank_pos = -1; \
|
|
combuf = (char *) realloc(combuf, nsize); \
|
|
if (combuf == NULL) \
|
|
err(1, NULL); \
|
|
e_com = combuf + com_len + 1; \
|
|
if (blank_pos > 0) \
|
|
last_bl = combuf + blank_pos; \
|
|
l_com = combuf + nsize - 5; \
|
|
s_com = combuf + 1; \
|
|
}
|
|
#define CHECK_SIZE_LAB(desired_size) \
|
|
if (e_lab + (desired_size) >= l_lab) { \
|
|
int nsize = l_lab-s_lab + 400 + desired_size; \
|
|
int label_len = e_lab - s_lab; \
|
|
labbuf = (char *) realloc(labbuf, nsize); \
|
|
if (labbuf == NULL) \
|
|
err(1, NULL); \
|
|
e_lab = labbuf + label_len + 1; \
|
|
l_lab = labbuf + nsize - 5; \
|
|
s_lab = labbuf + 1; \
|
|
}
|
|
#define CHECK_SIZE_TOKEN(desired_size) \
|
|
if (e_token + (desired_size) >= l_token) { \
|
|
int nsize = l_token-s_token + 400 + desired_size; \
|
|
int token_len = e_token - s_token; \
|
|
tokenbuf = (char *) realloc(tokenbuf, nsize); \
|
|
if (tokenbuf == NULL) \
|
|
err(1, NULL); \
|
|
e_token = tokenbuf + token_len + 1; \
|
|
l_token = tokenbuf + nsize - 5; \
|
|
s_token = tokenbuf + 1; \
|
|
}
|
|
|
|
extern char *labbuf; /* buffer for label */
|
|
extern char *s_lab; /* start ... */
|
|
extern char *e_lab; /* .. and end of stored label */
|
|
extern char *l_lab; /* limit of label buffer */
|
|
|
|
extern char *codebuf; /* buffer for code section */
|
|
extern char *s_code; /* start ... */
|
|
extern char *e_code; /* .. and end of stored code */
|
|
extern char *l_code; /* limit of code section */
|
|
|
|
extern char *combuf; /* buffer for comments */
|
|
extern char *s_com; /* start ... */
|
|
extern char *e_com; /* ... and end of stored comments */
|
|
extern char *l_com; /* limit of comment buffer */
|
|
|
|
#define token s_token
|
|
extern char *tokenbuf; /* the last token scanned */
|
|
extern char *s_token;
|
|
extern char *e_token;
|
|
extern char *l_token;
|
|
|
|
extern char *in_buffer; /* input buffer */
|
|
extern char *in_buffer_limit; /* the end of the input buffer */
|
|
extern char *buf_ptr; /* ptr to next character to be taken
|
|
* from in_buffer */
|
|
extern char *buf_end; /* ptr to first after last char in
|
|
* in_buffer */
|
|
|
|
extern char sc_buf[sc_size]; /* input text is saved here when looking
|
|
* for the brace after an if, while, etc */
|
|
extern char *save_com; /* start of the comment stored in
|
|
* sc_buf */
|
|
extern char *sc_end; /* pointer into save_com buffer */
|
|
|
|
extern char *bp_save; /* saved value of buf_ptr when taking
|
|
* input from save_com */
|
|
extern char *be_save; /* similarly saved value of buf_end */
|
|
|
|
|
|
struct options {
|
|
int blanklines_around_conditional_compilation;
|
|
int blanklines_after_declarations_at_proctop; /* this is vaguely
|
|
* similar to blanklines_after_decla except
|
|
* that in only applies to the first set of
|
|
* declarations in a procedure (just after
|
|
* the first '{') and it causes a blank line
|
|
* to be generated even if there are no
|
|
* declarations */
|
|
int blanklines_after_declarations;
|
|
int blanklines_after_procs;
|
|
int blanklines_before_blockcomments;
|
|
int leave_comma; /* if true, never break declarations after
|
|
* commas */
|
|
int btype_2; /* when true, brace should be on same line
|
|
* as if, while, etc */
|
|
int Bill_Shannon; /* true iff a blank should always be
|
|
* inserted after sizeof */
|
|
int comment_delimiter_on_blankline;
|
|
int decl_com_ind; /* the column in which comments after
|
|
* declarations should be put */
|
|
int cuddle_else; /* true if else should cuddle up to '}' */
|
|
int continuation_indent; /* set to the indentation between the
|
|
* edge of code and continuation lines */
|
|
float case_indent; /* The distance to indent case labels from the
|
|
* switch statement */
|
|
int com_ind; /* the column in which comments to the right
|
|
* of code should start */
|
|
int decl_indent; /* column to indent declared identifiers to */
|
|
int ljust_decl; /* true if declarations should be left
|
|
* justified */
|
|
int unindent_displace; /* comments not to the right of code
|
|
* will be placed this many
|
|
* indentation levels to the left of
|
|
* code */
|
|
int extra_expression_indent; /* true if continuation lines from
|
|
* the expression part of "if(e)",
|
|
* "while(e)", "for(e;e;e)" should be
|
|
* indented an extra tab stop so that they
|
|
* don't conflict with the code that follows */
|
|
int else_if; /* True iff else if pairs should be handled
|
|
* specially */
|
|
int function_brace_split; /* split function declaration and
|
|
* brace onto separate lines */
|
|
int format_col1_comments; /* If comments which start in column 1
|
|
* are to be magically reformatted (just
|
|
* like comments that begin in later columns) */
|
|
int format_block_comments; /* true if comments beginning with
|
|
* `/ * \n' are to be reformatted */
|
|
int indent_parameters;
|
|
int ind_size; /* the size of one indentation level */
|
|
int block_comment_max_col;
|
|
int local_decl_indent; /* like decl_indent but for locals */
|
|
int lineup_to_parens_always; /* if true, do not attempt to keep
|
|
* lined-up code within the margin */
|
|
int lineup_to_parens; /* if true, continued code within parens
|
|
* will be lined up to the open paren */
|
|
int pointer_as_binop; /* if true, the pointer dereference operator
|
|
* will be treated as a binary operator */
|
|
int proc_calls_space; /* If true, procedure calls look like:
|
|
* foo (bar) rather than foo(bar) */
|
|
int procnames_start_line; /* if true, the names of procedures
|
|
* being defined get placed in column 1 (ie.
|
|
* a newline is placed between the type of
|
|
* the procedure and its name) */
|
|
int space_after_cast; /* "b = (int) a" vs "b = (int)a" */
|
|
int star_comment_cont; /* true iff comment continuation lines
|
|
* should have stars at the beginning of
|
|
* each line. */
|
|
int swallow_optional_blanklines;
|
|
int auto_typedefs; /* set true to recognize identifiers
|
|
* ending in "_t" like typedefs */
|
|
int tabsize; /* the size of a tab */
|
|
int max_col; /* the maximum allowable line length */
|
|
int use_tabs; /* set true to use tabs for spacing, false
|
|
* uses all spaces */
|
|
int verbose; /* when true, non-essential error messages
|
|
* are printed */
|
|
};
|
|
extern struct options opt;
|
|
|
|
extern int found_err;
|
|
extern int n_real_blanklines;
|
|
extern int prefix_blankline_requested;
|
|
extern int postfix_blankline_requested;
|
|
extern int break_comma; /* when true and not in parens, break after a
|
|
* comma */
|
|
extern float case_ind; /* indentation level to be used for a "case
|
|
* n:" */
|
|
extern int code_lines; /* count of lines with code */
|
|
extern int had_eof; /* set to true when input is exhausted */
|
|
extern int line_no; /* the current line number. */
|
|
extern int inhibit_formatting; /* true if INDENT OFF is in effect */
|
|
extern int suppress_blanklines;/* set iff following blanklines should be
|
|
* suppressed */
|
|
|
|
#define STACKSIZE 256
|
|
|
|
struct parser_state {
|
|
int last_token;
|
|
int p_stack[STACKSIZE]; /* this is the parsers stack */
|
|
int il[STACKSIZE]; /* this stack stores indentation levels */
|
|
float cstk[STACKSIZE];/* used to store case stmt indentation levels */
|
|
int box_com; /* set to true when we are in a "boxed"
|
|
* comment. In that case, the first non-blank
|
|
* char should be lined up with the / in / followed by * */
|
|
int comment_delta; /* used to set up indentation for all lines
|
|
* of a boxed comment after the first one */
|
|
int n_comment_delta;/* remembers how many columns there were
|
|
* before the start of a box comment so that
|
|
* forthcoming lines of the comment are
|
|
* indented properly */
|
|
int cast_mask; /* indicates which close parens potentially
|
|
* close off casts */
|
|
int not_cast_mask; /* indicates which close parens definitely
|
|
* close off something else than casts */
|
|
int block_init; /* true iff inside a block initialization */
|
|
int block_init_level; /* The level of brace nesting in an
|
|
* initialization */
|
|
int last_nl; /* this is true if the last thing scanned was
|
|
* a newline */
|
|
int in_or_st; /* Will be true iff there has been a
|
|
* declarator (e.g. int or char) and no left
|
|
* paren since the last semicolon. When true,
|
|
* a '{' is starting a structure definition or
|
|
* an initialization list */
|
|
int bl_line; /* set to 1 by dump_line if the line is blank */
|
|
int col_1; /* set to true if the last token started in
|
|
* column 1 */
|
|
int com_col; /* this is the column in which the current
|
|
* comment should start */
|
|
int com_lines; /* the number of lines with comments, set by
|
|
* dump_line */
|
|
int dec_nest; /* current nesting level for structure or init */
|
|
int decl_on_line; /* set to true if this line of code has part
|
|
* of a declaration on it */
|
|
int i_l_follow; /* the level to which ind_level should be set
|
|
* after the current line is printed */
|
|
int in_decl; /* set to true when we are in a declaration
|
|
* stmt. The processing of braces is then
|
|
* slightly different */
|
|
int in_stmt; /* set to 1 while in a stmt */
|
|
int ind_level; /* the current indentation level */
|
|
int ind_stmt; /* set to 1 if next line should have an extra
|
|
* indentation level because we are in the
|
|
* middle of a stmt */
|
|
int last_u_d; /* set to true after scanning a token which
|
|
* forces a following operator to be unary */
|
|
int out_coms; /* the number of comments processed, set by
|
|
* pr_comment */
|
|
int out_lines; /* the number of lines written, set by
|
|
* dump_line */
|
|
int p_l_follow; /* used to remember how to indent following
|
|
* statement */
|
|
int paren_level; /* parenthesization level. used to indent
|
|
* within statements */
|
|
short paren_indents[20]; /* column positions of each paren */
|
|
int pcase; /* set to 1 if the current line label is a
|
|
* case. It is printed differently from a
|
|
* regular label */
|
|
int search_brace; /* set to true by parse when it is necessary
|
|
* to buffer up all info up to the start of a
|
|
* stmt after an if, while, etc */
|
|
int use_ff; /* set to one if the current line should be
|
|
* terminated with a form feed */
|
|
int want_blank; /* set to true when the following token should
|
|
* be prefixed by a blank. (Said prefixing is
|
|
* ignored in some cases.) */
|
|
int keyword; /* the type of a keyword or 0 */
|
|
int dumped_decl_indent;
|
|
int in_parameter_declaration;
|
|
int tos; /* pointer to top of stack */
|
|
char procname[100]; /* The name of the current procedure */
|
|
int just_saw_decl;
|
|
};
|
|
|
|
extern struct parser_state ps;
|
|
|
|
extern int ifdef_level;
|
|
extern struct parser_state state_stack[5];
|
|
extern struct parser_state match_state[5];
|