diff options
Diffstat (limited to 'usr.bin/indent/indent.c')
| -rw-r--r-- | usr.bin/indent/indent.c | 1181 |
1 files changed, 0 insertions, 1181 deletions
diff --git a/usr.bin/indent/indent.c b/usr.bin/indent/indent.c deleted file mode 100644 index 132d21f..0000000 --- a/usr.bin/indent/indent.c +++ /dev/null @@ -1,1181 +0,0 @@ -/* - * Copyright (c) 1985 Sun Microsystems, Inc. - * Copyright (c) 1976 Board of Trustees of the University of Illinois. - * Copyright (c) 1980, 1993 - * The Regents of the University of California. 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. - */ - -#ifndef lint -char copyright[] = -"@(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\ -@(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\ -@(#) Copyright (c) 1980, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)indent.c 5.17 (Berkeley) 6/7/93"; -#endif /* not lint */ - -#include <sys/param.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "indent_globs.h" -#include "indent_codes.h" -#include <ctype.h> - -char *in_name = "Standard Input"; /* will always point to name of input - * file */ -char *out_name = "Standard Output"; /* will always point to name - * of output file */ -char bakfile[MAXPATHLEN] = ""; - -main(argc, argv) - int argc; - char **argv; -{ - - extern int found_err; /* flag set in diag() on error */ - int dec_ind; /* current indentation for declarations */ - int di_stack[20]; /* a stack of structure indentation levels */ - int flushed_nl; /* used when buffering up comments to remember - * that a newline was passed over */ - int force_nl; /* when true, code must be broken */ - int hd_type; /* used to store type of stmt for if (...), - * for (...), etc */ - register int i; /* local loop counter */ - int scase; /* set to true when we see a case, so we will - * know what to do with the following colon */ - int sp_sw; /* when true, we are in the expressin of - * if(...), while(...), etc. */ - int squest; /* when this is positive, we have seen a ? - * without the matching : in a <c>?<s>:<s> - * construct */ - register char *t_ptr; /* used for copying tokens */ - int type_code; /* the type of token, returned by lexi */ - - int last_else = 0; /* true iff last keyword was an else */ - - - /*-----------------------------------------------*\ - | INITIALIZATION | - \*-----------------------------------------------*/ - - - ps.p_stack[0] = stmt; /* this is the parser's stack */ - ps.last_nl = true; /* this is true if the last thing scanned was - * a newline */ - ps.last_token = semicolon; - combuf = (char *) malloc(bufsize); - labbuf = (char *) malloc(bufsize); - codebuf = (char *) malloc(bufsize); - tokenbuf = (char *) malloc(bufsize); - l_com = combuf + bufsize - 5; - l_lab = labbuf + bufsize - 5; - l_code = codebuf + bufsize - 5; - l_token = tokenbuf + bufsize - 5; - combuf[0] = codebuf[0] = labbuf[0] = ' '; /* set up code, label, and - * comment buffers */ - combuf[1] = codebuf[1] = labbuf[1] = '\0'; - ps.else_if = 1; /* Default else-if special processing to on */ - s_lab = e_lab = labbuf + 1; - s_code = e_code = codebuf + 1; - s_com = e_com = combuf + 1; - s_token = e_token = tokenbuf + 1; - - in_buffer = (char *) malloc(10); - in_buffer_limit = in_buffer + 8; - buf_ptr = buf_end = in_buffer; - line_no = 1; - had_eof = ps.in_decl = ps.decl_on_line = break_comma = false; - sp_sw = force_nl = false; - ps.in_or_st = false; - ps.bl_line = true; - dec_ind = 0; - di_stack[ps.dec_nest = 0] = 0; - ps.want_blank = ps.in_stmt = ps.ind_stmt = false; - - - scase = ps.pcase = false; - squest = 0; - sc_end = 0; - bp_save = 0; - be_save = 0; - - output = 0; - - - - /*--------------------------------------------------*\ - | COMMAND LINE SCAN | - \*--------------------------------------------------*/ - -#ifdef undef - max_col = 78; /* -l78 */ - lineup_to_parens = 1; /* -lp */ - ps.ljust_decl = 0; /* -ndj */ - ps.com_ind = 33; /* -c33 */ - star_comment_cont = 1; /* -sc */ - ps.ind_size = 8; /* -i8 */ - verbose = 0; - ps.decl_indent = 16; /* -di16 */ - ps.indent_parameters = 1; /* -ip */ - ps.decl_com_ind = 0; /* if this is not set to some positive value - * by an arg, we will set this equal to - * ps.com_ind */ - btype_2 = 1; /* -br */ - cuddle_else = 1; /* -ce */ - ps.unindent_displace = 0; /* -d0 */ - ps.case_indent = 0; /* -cli0 */ - format_col1_comments = 1; /* -fc1 */ - procnames_start_line = 1; /* -psl */ - proc_calls_space = 0; /* -npcs */ - comment_delimiter_on_blankline = 1; /* -cdb */ - ps.leave_comma = 1; /* -nbc */ -#endif - - for (i = 1; i < argc; ++i) - if (strcmp(argv[i], "-npro") == 0) - break; - set_defaults(); - if (i >= argc) - set_profile(); - - for (i = 1; i < argc; ++i) { - - /* - * look thru args (if any) for changes to defaults - */ - if (argv[i][0] != '-') {/* no flag on parameter */ - if (input == 0) { /* we must have the input file */ - in_name = argv[i]; /* remember name of input file */ - input = fopen(in_name, "r"); - if (input == 0) /* check for open error */ - err(in_name); - continue; - } - else if (output == 0) { /* we have the output file */ - out_name = argv[i]; /* remember name of output file */ - if (strcmp(in_name, out_name) == 0) { /* attempt to overwrite - * the file */ - fprintf(stderr, "indent: input and output files must be different\n"); - exit(1); - } - output = fopen(out_name, "w"); - if (output == 0) /* check for create error */ - err(out_name); - continue; - } - fprintf(stderr, "indent: unknown parameter: %s\n", argv[i]); - exit(1); - } - else - set_option(argv[i]); - } /* end of for */ - if (input == 0) { - fprintf(stderr, "indent: usage: indent file [ outfile ] [ options ]\n"); - exit(1); - } - if (output == 0) - if (troff) - output = stdout; - else { - out_name = in_name; - bakcopy(); - } - if (ps.com_ind <= 1) - ps.com_ind = 2; /* dont put normal comments before column 2 */ - if (troff) { - if (bodyf.font[0] == 0) - parsefont(&bodyf, "R"); - if (scomf.font[0] == 0) - parsefont(&scomf, "I"); - if (blkcomf.font[0] == 0) - blkcomf = scomf, blkcomf.size += 2; - if (boxcomf.font[0] == 0) - boxcomf = blkcomf; - if (stringf.font[0] == 0) - parsefont(&stringf, "L"); - if (keywordf.font[0] == 0) - parsefont(&keywordf, "B"); - writefdef(&bodyf, 'B'); - writefdef(&scomf, 'C'); - writefdef(&blkcomf, 'L'); - writefdef(&boxcomf, 'X'); - writefdef(&stringf, 'S'); - writefdef(&keywordf, 'K'); - } - if (block_comment_max_col <= 0) - block_comment_max_col = max_col; - if (ps.decl_com_ind <= 0) /* if not specified by user, set this */ - ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind; - if (continuation_indent == 0) - continuation_indent = ps.ind_size; - fill_buffer(); /* get first batch of stuff into input buffer */ - - parse(semicolon); - { - register char *p = buf_ptr; - register col = 1; - - while (1) { - if (*p == ' ') - col++; - else if (*p == '\t') - col = ((col - 1) & ~7) + 9; - else - break; - p++; - } - if (col > ps.ind_size) - ps.ind_level = ps.i_l_follow = col / ps.ind_size; - } - if (troff) { - register char *p = in_name, - *beg = in_name; - - while (*p) - if (*p++ == '/') - beg = p; - fprintf(output, ".Fn \"%s\"\n", beg); - } - /* - * START OF MAIN LOOP - */ - - while (1) { /* this is the main loop. it will go until we - * reach eof */ - int is_procname; - - type_code = lexi(); /* lexi reads one token. The actual - * characters read are stored in "token". lexi - * returns a code indicating the type of token */ - is_procname = ps.procname[0]; - - /* - * The following code moves everything following an if (), while (), - * else, etc. up to the start of the following stmt to a buffer. This - * allows proper handling of both kinds of brace placement. - */ - - flushed_nl = false; - while (ps.search_brace) { /* if we scanned an if(), while(), - * etc., we might need to copy stuff - * into a buffer we must loop, copying - * stuff into save_com, until we find - * the start of the stmt which follows - * the if, or whatever */ - switch (type_code) { - case newline: - ++line_no; - flushed_nl = true; - case form_feed: - break; /* form feeds and newlines found here will be - * ignored */ - - case lbrace: /* this is a brace that starts the compound - * stmt */ - if (sc_end == 0) { /* ignore buffering if a comment wasnt - * stored up */ - ps.search_brace = false; - goto check_type; - } - if (btype_2) { - save_com[0] = '{'; /* we either want to put the brace - * right after the if */ - goto sw_buffer; /* go to common code to get out of - * this loop */ - } - case comment: /* we have a comment, so we must copy it into - * the buffer */ - if (!flushed_nl || sc_end != 0) { - if (sc_end == 0) { /* if this is the first comment, we - * must set up the buffer */ - save_com[0] = save_com[1] = ' '; - sc_end = &(save_com[2]); - } - else { - *sc_end++ = '\n'; /* add newline between - * comments */ - *sc_end++ = ' '; - --line_no; - } - *sc_end++ = '/'; /* copy in start of comment */ - *sc_end++ = '*'; - - for (;;) { /* loop until we get to the end of the comment */ - *sc_end = *buf_ptr++; - if (buf_ptr >= buf_end) - fill_buffer(); - - if (*sc_end++ == '*' && *buf_ptr == '/') - break; /* we are at end of comment */ - - if (sc_end >= &(save_com[sc_size])) { /* check for temp buffer - * overflow */ - diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever."); - fflush(output); - exit(1); - } - } - *sc_end++ = '/'; /* add ending slash */ - if (++buf_ptr >= buf_end) /* get past / in buffer */ - fill_buffer(); - break; - } - default: /* it is the start of a normal statment */ - if (flushed_nl) /* if we flushed a newline, make sure it is - * put back */ - force_nl = true; - if (type_code == sp_paren && *token == 'i' - && last_else && ps.else_if - || type_code == sp_nparen && *token == 'e' - && e_code != s_code && e_code[-1] == '}') - force_nl = false; - - if (sc_end == 0) { /* ignore buffering if comment wasnt - * saved up */ - ps.search_brace = false; - goto check_type; - } - if (force_nl) { /* if we should insert a nl here, put it into - * the buffer */ - force_nl = false; - --line_no; /* this will be re-increased when the nl is - * read from the buffer */ - *sc_end++ = '\n'; - *sc_end++ = ' '; - if (verbose && !flushed_nl) /* print error msg if the line - * was not already broken */ - diag(0, "Line broken"); - flushed_nl = false; - } - for (t_ptr = token; *t_ptr; ++t_ptr) - *sc_end++ = *t_ptr; /* copy token into temp buffer */ - ps.procname[0] = 0; - - sw_buffer: - ps.search_brace = false; /* stop looking for start of - * stmt */ - bp_save = buf_ptr; /* save current input buffer */ - be_save = buf_end; - buf_ptr = save_com; /* fix so that subsequent calls to - * lexi will take tokens out of - * save_com */ - *sc_end++ = ' ';/* add trailing blank, just in case */ - buf_end = sc_end; - sc_end = 0; - break; - } /* end of switch */ - if (type_code != 0) /* we must make this check, just in case there - * was an unexpected EOF */ - type_code = lexi(); /* read another token */ - /* if (ps.search_brace) ps.procname[0] = 0; */ - if ((is_procname = ps.procname[0]) && flushed_nl - && !procnames_start_line && ps.in_decl - && type_code == ident) - flushed_nl = 0; - } /* end of while (search_brace) */ - last_else = 0; -check_type: - if (type_code == 0) { /* we got eof */ - if (s_lab != e_lab || s_code != e_code - || s_com != e_com) /* must dump end of line */ - dump_line(); - if (ps.tos > 1) /* check for balanced braces */ - diag(1, "Stuff missing from end of file."); - - if (verbose) { - printf("There were %d output lines and %d comments\n", - ps.out_lines, ps.out_coms); - printf("(Lines with comments)/(Lines with code): %6.3f\n", - (1.0 * ps.com_lines) / code_lines); - } - fflush(output); - exit(found_err); - } - if ( - (type_code != comment) && - (type_code != newline) && - (type_code != preesc) && - (type_code != form_feed)) { - if (force_nl && - (type_code != semicolon) && - (type_code != lbrace || !btype_2)) { - /* we should force a broken line here */ - if (verbose && !flushed_nl) - diag(0, "Line broken"); - flushed_nl = false; - dump_line(); - ps.want_blank = false; /* dont insert blank at line start */ - force_nl = false; - } - ps.in_stmt = true; /* turn on flag which causes an extra level of - * indentation. this is turned off by a ; or - * '}' */ - if (s_com != e_com) { /* the turkey has embedded a comment - * in a line. fix it */ - *e_code++ = ' '; - for (t_ptr = s_com; *t_ptr; ++t_ptr) { - CHECK_SIZE_CODE; - *e_code++ = *t_ptr; - } - *e_code++ = ' '; - *e_code = '\0'; /* null terminate code sect */ - ps.want_blank = false; - e_com = s_com; - } - } - else if (type_code != comment) /* preserve force_nl thru a comment */ - force_nl = false; /* cancel forced newline after newline, form - * feed, etc */ - - - - /*-----------------------------------------------------*\ - | do switch on type of token scanned | - \*-----------------------------------------------------*/ - CHECK_SIZE_CODE; - switch (type_code) { /* now, decide what to do with the token */ - - case form_feed: /* found a form feed in line */ - ps.use_ff = true; /* a form feed is treated much like a newline */ - dump_line(); - ps.want_blank = false; - break; - - case newline: - if (ps.last_token != comma || ps.p_l_follow > 0 - || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com) { - dump_line(); - ps.want_blank = false; - } - ++line_no; /* keep track of input line number */ - break; - - case lparen: /* got a '(' or '[' */ - ++ps.p_l_follow; /* count parens to make Healy happy */ - if (ps.want_blank && *token != '[' && - (ps.last_token != ident || proc_calls_space - || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon)))) - *e_code++ = ' '; - if (ps.in_decl && !ps.block_init) - if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl) { - ps.dumped_decl_indent = 1; - sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token); - e_code += strlen(e_code); - } - else { - while ((e_code - s_code) < dec_ind) { - CHECK_SIZE_CODE; - *e_code++ = ' '; - } - *e_code++ = token[0]; - } - else - *e_code++ = token[0]; - ps.paren_indents[ps.p_l_follow - 1] = e_code - s_code; - if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent - && ps.paren_indents[0] < 2 * ps.ind_size) - ps.paren_indents[0] = 2 * ps.ind_size; - ps.want_blank = false; - if (ps.in_or_st && *token == '(' && ps.tos <= 2) { - /* - * this is a kluge to make sure that declarations will be - * aligned right if proc decl has an explicit type on it, i.e. - * "int a(x) {..." - */ - parse(semicolon); /* I said this was a kluge... */ - ps.in_or_st = false; /* turn off flag for structure decl or - * initialization */ - } - if (ps.sizeof_keyword) - ps.sizeof_mask |= 1 << ps.p_l_follow; - break; - - case rparen: /* got a ')' or ']' */ - rparen_count--; - if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask) { - ps.last_u_d = true; - ps.cast_mask &= (1 << ps.p_l_follow) - 1; - } - ps.sizeof_mask &= (1 << ps.p_l_follow) - 1; - if (--ps.p_l_follow < 0) { - ps.p_l_follow = 0; - diag(0, "Extra %c", *token); - } - if (e_code == s_code) /* if the paren starts the line */ - ps.paren_level = ps.p_l_follow; /* then indent it */ - - *e_code++ = token[0]; - ps.want_blank = true; - - if (sp_sw && (ps.p_l_follow == 0)) { /* check for end of if - * (...), or some such */ - sp_sw = false; - force_nl = true;/* must force newline after if */ - ps.last_u_d = true; /* inform lexi that a following - * operator is unary */ - ps.in_stmt = false; /* dont use stmt continuation - * indentation */ - - parse(hd_type); /* let parser worry about if, or whatever */ - } - ps.search_brace = btype_2; /* this should insure that constructs - * such as main(){...} and int[]{...} - * have their braces put in the right - * place */ - break; - - case unary_op: /* this could be any unary operation */ - if (ps.want_blank) - *e_code++ = ' '; - - if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname) { - sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token); - ps.dumped_decl_indent = 1; - e_code += strlen(e_code); - } - else { - char *res = token; - - if (ps.in_decl && !ps.block_init) { /* if this is a unary op - * in a declaration, we - * should indent this - * token */ - for (i = 0; token[i]; ++i); /* find length of token */ - while ((e_code - s_code) < (dec_ind - i)) { - CHECK_SIZE_CODE; - *e_code++ = ' '; /* pad it */ - } - } - if (troff && token[0] == '-' && token[1] == '>') - res = "\\(->"; - for (t_ptr = res; *t_ptr; ++t_ptr) { - CHECK_SIZE_CODE; - *e_code++ = *t_ptr; - } - } - ps.want_blank = false; - break; - - case binary_op: /* any binary operation */ - if (ps.want_blank) - *e_code++ = ' '; - { - char *res = token; - - if (troff) - switch (token[0]) { - case '<': - if (token[1] == '=') - res = "\\(<="; - break; - case '>': - if (token[1] == '=') - res = "\\(>="; - break; - case '!': - if (token[1] == '=') - res = "\\(!="; - break; - case '|': - if (token[1] == '|') - res = "\\(br\\(br"; - else if (token[1] == 0) - res = "\\(br"; - break; - } - for (t_ptr = res; *t_ptr; ++t_ptr) { - CHECK_SIZE_CODE; - *e_code++ = *t_ptr; /* move the operator */ - } - } - ps.want_blank = true; - break; - - case postop: /* got a trailing ++ or -- */ - *e_code++ = token[0]; - *e_code++ = token[1]; - ps.want_blank = true; - break; - - case question: /* got a ? */ - squest++; /* this will be used when a later colon - * appears so we can distinguish the - * <c>?<n>:<n> construct */ - if (ps.want_blank) - *e_code++ = ' '; - *e_code++ = '?'; - ps.want_blank = true; - break; - - case casestmt: /* got word 'case' or 'default' */ - scase = true; /* so we can process the later colon properly */ - goto copy_id; - - case colon: /* got a ':' */ - if (squest > 0) { /* it is part of the <c>?<n>: <n> construct */ - --squest; - if (ps.want_blank) - *e_code++ = ' '; - *e_code++ = ':'; - ps.want_blank = true; - break; - } - if (ps.in_decl) { - *e_code++ = ':'; - ps.want_blank = false; - break; - } - ps.in_stmt = false; /* seeing a label does not imply we are in a - * stmt */ - for (t_ptr = s_code; *t_ptr; ++t_ptr) - *e_lab++ = *t_ptr; /* turn everything so far into a label */ - e_code = s_code; - *e_lab++ = ':'; - *e_lab++ = ' '; - *e_lab = '\0'; - - force_nl = ps.pcase = scase; /* ps.pcase will be used by - * dump_line to decide how to - * indent the label. force_nl - * will force a case n: to be - * on a line by itself */ - scase = false; - ps.want_blank = false; - break; - - case semicolon: /* got a ';' */ - ps.in_or_st = false;/* we are not in an initialization or - * structure declaration */ - scase = false; /* these will only need resetting in a error */ - squest = 0; - if (ps.last_token == rparen && rparen_count == 0) - ps.in_parameter_declaration = 0; - ps.cast_mask = 0; - ps.sizeof_mask = 0; - ps.block_init = 0; - ps.block_init_level = 0; - ps.just_saw_decl--; - - if (ps.in_decl && s_code == e_code && !ps.block_init) - while ((e_code - s_code) < (dec_ind - 1)) { - CHECK_SIZE_CODE; - *e_code++ = ' '; - } - - ps.in_decl = (ps.dec_nest > 0); /* if we were in a first level - * structure declaration, we - * arent any more */ - - if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0) { - - /* - * This should be true iff there were unbalanced parens in the - * stmt. It is a bit complicated, because the semicolon might - * be in a for stmt - */ - diag(1, "Unbalanced parens"); - ps.p_l_follow = 0; - if (sp_sw) { /* this is a check for a if, while, etc. with - * unbalanced parens */ - sp_sw = false; - parse(hd_type); /* dont lose the if, or whatever */ - } - } - *e_code++ = ';'; - ps.want_blank = true; - ps.in_stmt = (ps.p_l_follow > 0); /* we are no longer in the - * middle of a stmt */ - - if (!sp_sw) { /* if not if for (;;) */ - parse(semicolon); /* let parser know about end of stmt */ - force_nl = true;/* force newline after a end of stmt */ - } - break; - - case lbrace: /* got a '{' */ - ps.in_stmt = false; /* dont indent the {} */ - if (!ps.block_init) - force_nl = true;/* force other stuff on same line as '{' onto - * new line */ - else if (ps.block_init_level <= 0) - ps.block_init_level = 1; - else - ps.block_init_level++; - - if (s_code != e_code && !ps.block_init) { - if (!btype_2) { - dump_line(); - ps.want_blank = false; - } - else if (ps.in_parameter_declaration && !ps.in_or_st) { - ps.i_l_follow = 0; - dump_line(); - ps.want_blank = false; - } - } - if (ps.in_parameter_declaration) - prefix_blankline_requested = 0; - - if (ps.p_l_follow > 0) { /* check for preceeding unbalanced - * parens */ - diag(1, "Unbalanced parens"); - ps.p_l_follow = 0; - if (sp_sw) { /* check for unclosed if, for, etc. */ - sp_sw = false; - parse(hd_type); - ps.ind_level = ps.i_l_follow; - } - } - if (s_code == e_code) - ps.ind_stmt = false; /* dont put extra indentation on line - * with '{' */ - if (ps.in_decl && ps.in_or_st) { /* this is either a structure - * declaration or an init */ - di_stack[ps.dec_nest++] = dec_ind; - /* ? dec_ind = 0; */ - } - else { - ps.decl_on_line = false; /* we cant be in the middle of - * a declaration, so dont do - * special indentation of - * comments */ - if (blanklines_after_declarations_at_proctop - && ps.in_parameter_declaration) - postfix_blankline_requested = 1; - ps.in_parameter_declaration = 0; - } - dec_ind = 0; - parse(lbrace); /* let parser know about this */ - if (ps.want_blank) /* put a blank before '{' if '{' is not at - * start of line */ - *e_code++ = ' '; - ps.want_blank = false; - *e_code++ = '{'; - ps.just_saw_decl = 0; - break; - - case rbrace: /* got a '}' */ - if (ps.p_stack[ps.tos] == decl && !ps.block_init) /* semicolons can be - * omitted in - * declarations */ - parse(semicolon); - if (ps.p_l_follow) {/* check for unclosed if, for, else. */ - diag(1, "Unbalanced parens"); - ps.p_l_follow = 0; - sp_sw = false; - } - ps.just_saw_decl = 0; - ps.block_init_level--; - if (s_code != e_code && !ps.block_init) { /* '}' must be first on - * line */ - if (verbose) - diag(0, "Line broken"); - dump_line(); - } - *e_code++ = '}'; - ps.want_blank = true; - ps.in_stmt = ps.ind_stmt = false; - if (ps.dec_nest > 0) { /* we are in multi-level structure - * declaration */ - dec_ind = di_stack[--ps.dec_nest]; - if (ps.dec_nest == 0 && !ps.in_parameter_declaration) - ps.just_saw_decl = 2; - ps.in_decl = true; - } - prefix_blankline_requested = 0; - parse(rbrace); /* let parser know about this */ - ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead - && ps.il[ps.tos] >= ps.ind_level; - if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0) - postfix_blankline_requested = 1; - break; - - case swstmt: /* got keyword "switch" */ - sp_sw = true; - hd_type = swstmt; /* keep this for when we have seen the - * expression */ - goto copy_id; /* go move the token into buffer */ - - case sp_paren: /* token is if, while, for */ - sp_sw = true; /* the interesting stuff is done after the - * expression is scanned */ - hd_type = (*token == 'i' ? ifstmt : - (*token == 'w' ? whilestmt : forstmt)); - - /* - * remember the type of header for later use by parser - */ - goto copy_id; /* copy the token into line */ - - case sp_nparen: /* got else, do */ - ps.in_stmt = false; - if (*token == 'e') { - if (e_code != s_code && (!cuddle_else || e_code[-1] != '}')) { - if (verbose) - diag(0, "Line broken"); - dump_line();/* make sure this starts a line */ - ps.want_blank = false; - } - force_nl = true;/* also, following stuff must go onto new line */ - last_else = 1; - parse(elselit); - } - else { - if (e_code != s_code) { /* make sure this starts a line */ - if (verbose) - diag(0, "Line broken"); - dump_line(); - ps.want_blank = false; - } - force_nl = true;/* also, following stuff must go onto new line */ - last_else = 0; - parse(dolit); - } - goto copy_id; /* move the token into line */ - - case decl: /* we have a declaration type (int, register, - * etc.) */ - parse(decl); /* let parser worry about indentation */ - if (ps.last_token == rparen && ps.tos <= 1) { - ps.in_parameter_declaration = 1; - if (s_code != e_code) { - dump_line(); - ps.want_blank = 0; - } - } - if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0) { - ps.ind_level = ps.i_l_follow = 1; - ps.ind_stmt = 0; - } - ps.in_or_st = true; /* this might be a structure or initialization - * declaration */ - ps.in_decl = ps.decl_on_line = true; - if ( /* !ps.in_or_st && */ ps.dec_nest <= 0) - ps.just_saw_decl = 2; - prefix_blankline_requested = 0; - for (i = 0; token[i++];); /* get length of token */ - - /* - * dec_ind = e_code - s_code + (ps.decl_indent>i ? ps.decl_indent - * : i); - */ - dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i; - goto copy_id; - - case ident: /* got an identifier or constant */ - if (ps.in_decl) { /* if we are in a declaration, we must indent - * identifier */ - if (ps.want_blank) - *e_code++ = ' '; - ps.want_blank = false; - if (is_procname == 0 || !procnames_start_line) { - if (!ps.block_init) - if (troff && !ps.dumped_decl_indent) { - sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7); - ps.dumped_decl_indent = 1; - e_code += strlen(e_code); - } - else - while ((e_code - s_code) < dec_ind) { - CHECK_SIZE_CODE; - *e_code++ = ' '; - } - } - else { - if (dec_ind && s_code != e_code) - dump_line(); - dec_ind = 0; - ps.want_blank = false; - } - } - else if (sp_sw && ps.p_l_follow == 0) { - sp_sw = false; - force_nl = true; - ps.last_u_d = true; - ps.in_stmt = false; - parse(hd_type); - } - copy_id: - if (ps.want_blank) - *e_code++ = ' '; - if (troff && ps.its_a_keyword) { - e_code = chfont(&bodyf, &keywordf, e_code); - for (t_ptr = token; *t_ptr; ++t_ptr) { - CHECK_SIZE_CODE; - *e_code++ = keywordf.allcaps && islower(*t_ptr) - ? toupper(*t_ptr) : *t_ptr; - } - e_code = chfont(&keywordf, &bodyf, e_code); - } - else - for (t_ptr = token; *t_ptr; ++t_ptr) { - CHECK_SIZE_CODE; - *e_code++ = *t_ptr; - } - ps.want_blank = true; - break; - - case period: /* treat a period kind of like a binary - * operation */ - *e_code++ = '.'; /* move the period into line */ - ps.want_blank = false; /* dont put a blank after a period */ - break; - - case comma: - ps.want_blank = (s_code != e_code); /* only put blank after comma - * if comma does not start the - * line */ - if (ps.in_decl && is_procname == 0 && !ps.block_init) - while ((e_code - s_code) < (dec_ind - 1)) { - CHECK_SIZE_CODE; - *e_code++ = ' '; - } - - *e_code++ = ','; - if (ps.p_l_follow == 0) { - if (ps.block_init_level <= 0) - ps.block_init = 0; - if (break_comma && (!ps.leave_comma || compute_code_target() + (e_code - s_code) > max_col - 8)) - force_nl = true; - } - break; - - case preesc: /* got the character '#' */ - if ((s_com != e_com) || - (s_lab != e_lab) || - (s_code != e_code)) - dump_line(); - *e_lab++ = '#'; /* move whole line to 'label' buffer */ - { - int in_comment = 0; - int com_start = 0; - char quote = 0; - int com_end = 0; - - while (*buf_ptr == ' ' || *buf_ptr == '\t') { - buf_ptr++; - if (buf_ptr >= buf_end) - fill_buffer(); - } - while (*buf_ptr != '\n' || in_comment) { - CHECK_SIZE_LAB; - *e_lab = *buf_ptr++; - if (buf_ptr >= buf_end) - fill_buffer(); - switch (*e_lab++) { - case BACKSLASH: - if (troff) - *e_lab++ = BACKSLASH; - if (!in_comment) { - *e_lab++ = *buf_ptr++; - if (buf_ptr >= buf_end) - fill_buffer(); - } - break; - case '/': - if (*buf_ptr == '*' && !in_comment && !quote) { - in_comment = 1; - *e_lab++ = *buf_ptr++; - com_start = e_lab - s_lab - 2; - } - break; - case '"': - if (quote == '"') - quote = 0; - break; - case '\'': - if (quote == '\'') - quote = 0; - break; - case '*': - if (*buf_ptr == '/' && in_comment) { - in_comment = 0; - *e_lab++ = *buf_ptr++; - com_end = e_lab - s_lab; - } - break; - } - } - - while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) - e_lab--; - if (e_lab - s_lab == com_end && bp_save == 0) { /* comment on - * preprocessor line */ - if (sc_end == 0) /* if this is the first comment, we - * must set up the buffer */ - sc_end = &(save_com[0]); - else { - *sc_end++ = '\n'; /* add newline between - * comments */ - *sc_end++ = ' '; - --line_no; - } - bcopy(s_lab + com_start, sc_end, com_end - com_start); - sc_end += com_end - com_start; - if (sc_end >= &save_com[sc_size]) - abort(); - e_lab = s_lab + com_start; - while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) - e_lab--; - bp_save = buf_ptr; /* save current input buffer */ - be_save = buf_end; - buf_ptr = save_com; /* fix so that subsequent calls to - * lexi will take tokens out of - * save_com */ - *sc_end++ = ' '; /* add trailing blank, just in case */ - buf_end = sc_end; - sc_end = 0; - } - *e_lab = '\0'; /* null terminate line */ - ps.pcase = false; - } - - if (strncmp(s_lab, "#if", 3) == 0) { - if (blanklines_around_conditional_compilation) { - register c; - prefix_blankline_requested++; - while ((c = getc(input)) == '\n'); - ungetc(c, input); - } - if (ifdef_level < sizeof state_stack / sizeof state_stack[0]) { - match_state[ifdef_level].tos = -1; - state_stack[ifdef_level++] = ps; - } - else - diag(1, "#if stack overflow"); - } - else if (strncmp(s_lab, "#else", 5) == 0) - if (ifdef_level <= 0) - diag(1, "Unmatched #else"); - else { - match_state[ifdef_level - 1] = ps; - ps = state_stack[ifdef_level - 1]; - } - else if (strncmp(s_lab, "#endif", 6) == 0) { - if (ifdef_level <= 0) - diag(1, "Unmatched #endif"); - else { - ifdef_level--; - -#ifdef undef - /* - * This match needs to be more intelligent before the - * message is useful - */ - if (match_state[ifdef_level].tos >= 0 - && bcmp(&ps, &match_state[ifdef_level], sizeof ps)) - diag(0, "Syntactically inconsistant #ifdef alternatives."); -#endif - } - if (blanklines_around_conditional_compilation) { - postfix_blankline_requested++; - n_real_blanklines = 0; - } - } - break; /* subsequent processing of the newline - * character will cause the line to be printed */ - - case comment: /* we have gotten a /* this is a biggie */ - if (flushed_nl) { /* we should force a broken line here */ - flushed_nl = false; - dump_line(); - ps.want_blank = false; /* dont insert blank at line start */ - force_nl = false; - } - pr_comment(); - break; - } /* end of big switch stmt */ - - *e_code = '\0'; /* make sure code section is null terminated */ - if (type_code != comment && type_code != newline && type_code != preesc) - ps.last_token = type_code; - } /* end of main while (1) loop */ -} - -/* - * copy input file to backup file if in_name is /blah/blah/blah/file, then - * backup file will be ".Bfile" then make the backup file the input and - * original input file the output - */ -bakcopy() -{ - int n, - bakchn; - char buff[8 * 1024]; - register char *p; - - /* construct file name .Bfile */ - for (p = in_name; *p; p++); /* skip to end of string */ - while (p > in_name && *p != '/') /* find last '/' */ - p--; - if (*p == '/') - p++; - sprintf(bakfile, "%s.BAK", p); - - /* copy in_name to backup file */ - bakchn = creat(bakfile, 0600); - if (bakchn < 0) - err(bakfile); - while (n = read(fileno(input), buff, sizeof buff)) - if (write(bakchn, buff, n) != n) - err(bakfile); - if (n < 0) - err(in_name); - close(bakchn); - fclose(input); - - /* re-open backup file as the input file */ - input = fopen(bakfile, "r"); - if (input == 0) - err(bakfile); - /* now the original input file will be the output */ - output = fopen(in_name, "w"); - if (output == 0) { - unlink(bakfile); - err(in_name); - } -} - -err(msg) - char *msg; -{ - extern int errno; - char *strerror(); - - (void)fprintf(stderr, "indent: %s: %s\n", msg, strerror(errno)); - exit(1); -} |
