args.c

indent为linux下代码自动格式化工具

/* Copyright (c) 1999, 2000 Carlo Wood.  All rights reserved.
 * Copyright (c) 1994 Joseph Arceneaux.  All rights reserved.
 * Copyright (c) 1992 Free Software Foundation, Inc.  All rights reserved.
 *
 * Copyright (c) 1985 Sun Microsystems, Inc.
 * Copyright (c) 1980 The Regents of the University of California.
 * Copyright (c) 1976 Board of Trustees ofthe University of Illinois.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that
 * the above copyright notice and this paragraph are duplicated in all such
 * forms and that any documentation, advertising materials, and other
 * materials related to such distribution and use acknowledge that the
 * software was developed by the University of California, Berkeley, the
 * University of Illinois, Urbana, and Sun Microsystems, Inc.  The name of
 * either University or Sun Microsystems may not be used to endorse or
 * promote products derived from this software without specific prior written
 * permission. THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES
 * OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
 *
 * HISTORY
 * 2002-03-14 DI restructured scan_profile and fixed bug handling comments
 * 2002-06-13 DI fixed handling of missing int parameter.
 * 2002-08-05 Matthias <[e-mail]> and Eric Lloyd <[e-mail]>
 *            Added support for -brf to place function opening brace after function
 *            declaration.
 * 2002-11-10 Cristalle Azundris Sabon <[e-mail]>
 *            Added --preprocessor-indentation (ppi)   if set, will indent nested
 *            preprocessor-statements with n spaces per level.  overrides -lps.
 */

/* Argument scanning and profile reading code.  Default parameters are set
 * here as well. */

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "sys.h"
#include "indent.h"
#include "args.h"
#include "globs.h"

RCSTAG_CC ("$Id: args.c,v 1.42 2002/11/10 21:02:48 david Exp $");

#define KR_SETTINGS_STRING (int *) \
     "-nbad\0-bap\0-nbc\0-bbo\0-hnl\0-br\0-brs\0-c33\0-cd33\0" \
     "-ncdb\0-ce\0-ci4\0-cli0\0-d0\0-di1\0-nfc1\0-i4\0-ip0\0-l75\0-lp\0" \
     "-npcs\0-nprs\0-npsl\0-sai\0-saf\0-saw\0-cs\0-nsc\0-nsob\0-nfca\0-cp33\0-nss\0"

#define GNU_SETTINGS_STRING  (int *) \
     "-nbad\0-bap\0-bbo\0-hnl\0-nbc\0-bl\0-bls\0-ncdb\0-cs\0-nce\0" \
     "-di2\0-ndj\0-nfc1\0-i2\0-ip5\0-lp\0-pcs\0-nprs\0-psl\0-nsc\0-sai\0-saf\0-saw\0-nsob\0" \
     "-bli2\0-cp1\0-nfca\0"

#define ORIG_SETTINGS_STRING (int *) \
     "-nbap\0-nbad\0-bbo\0-hnl\0-bc\0-br\0-brs\0-c33\0-cd33\0-cdb\0" \
     "-ce\0-ci4\0-cli0\0-cp33\0-di16\0-fc1\0-fca\0-i4\0-l75\0-lp\0-npcs\0-nprs\0" \
     "-psl\0-sc\0-sai\0-saf\0-saw\0-nsob\0-nss\0-ts8\0"


/* profile types */
typedef enum profile
{
    PRO_BOOL,                     /* boolean */
    PRO_INT,                      /* integer */
    PRO_IGN,                      /* ignore it */
    PRO_KEY,                      /* -T switch */
    PRO_SETTINGS,                 /* bundled set of settings */
    PRO_PRSTRING,                 /* Print string and exit */
    PRO_FUNCTION                  /* Call the associated function. */
} profile_ty;

/* profile specials for booleans */
typedef enum on_or_off
{
    ONOFF_NA,                     /* Not applicable.  Used in table for
                                   * non-booleans.  */
    OFF,                          /* This option turns on the boolean variable
                                   * in question.  */
    ON                            /* it turns it off */
} on_or_off_ty;

/* Explicit flags for each option.  */
static int exp_T    = 0;
static int exp_bacc = 0;
static int exp_badp = 0;
static int exp_bad  = 0;
static int exp_bap  = 0;
static int exp_bbb  = 0;
static int exp_bbo  = 0;
static int exp_bc   = 0;
static int exp_bl   = 0;
static int exp_blf  = 0;
static int exp_bli  = 0;
static int exp_bls  = 0;
static int exp_bs   = 0;
static int exp_c    = 0;
static int exp_cbi  = 0;
static int exp_cdb  = 0;
static int exp_cd   = 0;
static int exp_cdw  = 0;
static int exp_ce   = 0;
static int exp_ci   = 0;
static int exp_cli  = 0;
static int exp_cp   = 0;
static int exp_cpp  = 0;
static int exp_cs   = 0;
static int exp_d    = 0;
static int exp_bfda = 0;
static int exp_bfde = 0;
static int exp_di   = 0;
static int exp_dj   = 0;
static int exp_eei  = 0;
static int exp_fc1  = 0;
static int exp_fca  = 0;
static int exp_gnu  = 0;
static int exp_hnl  = 0;
static int exp_i    = 0;
static int exp_ip   = 0;
static int exp_kr   = 0;
static int exp_l    = 0;
static int exp_lc   = 0;
static int exp_lp   = 0;
static int exp_lps  = 0;
static int exp_nip  = 0; 
static int exp_o    = 0;
static int exp_orig = 0;
static int exp_pcs  = 0;
static int exp_pi   = 0;
static int exp_pmt  = 0;
static int exp_pro  = 0;
static int exp_prs  = 0;
static int exp_psl  = 0;
static int exp_ppi  = 0;  /* force preprocessor indent at width... */
static int exp_sai  = 0;
static int exp_saf  = 0;
static int exp_saw  = 0;
static int exp_sbi  = 0;
static int exp_sc   = 0;
static int exp_sob  = 0;
static int exp_ss   = 0;
static int exp_st   = 0;
static int exp_ts   = 0;
static int exp_ut   = 0;
static int exp_v    = 0;
static int exp_version = 0;

/* The following structure is controlled by command line parameters and
 * their meaning is explained in indent.h.  */

user_options_ty settings = {0};

static void usage (void);

/* N.B.: because of the way the table here is scanned, options whose names
 * are substrings of other options must occur later; that is, with -lp vs -l,
 * -lp must be first.  Also, while (most) booleans occur more than once, the
 * last default value is the one actually assigned. */

typedef struct pro
{
    char       * p_name;        /* option name, e.g. "bl", "cli" */
    profile_ty   p_type;        /* profile type */
    int          p_default;     /* the default value (if PRO_BOOL or PRO_INT) */

    on_or_off_ty p_special;     /* If p_type == PRO_BOOL, ON or OFF to tell how
                                 * this switch affects the variable. Not used
                                 * for other p_type's.  */

    int        * p_obj;         /* if p_type == PRO_SETTINGS, a (char *) pointing
                                 *    to a list of the switches to set, separated by
                                 *    NULLs, terminated by 2 NULLs.
                                 * if p_type ==PRO_BOOL or PRO_INT, the address of
                                 *     the variable that gets set by the option.
                                 * if p_type == PRO_PRSTRING, a (char *) pointing
                                 *     to the string.
                                 * if p_type == PRO_FUNCTION, a pointer to a
                                 *     function to be called. */

  int          * p_explicit;    /* Points to a nonzero value (allocated statically
                                 * for all options) if the option has been specified
                                 * explicitly.  This is necessary because for
                                 * boolean options, the options to set and reset the
                                 * variable must share the explicit flag.  */
} pro_ty;

#ifdef BERKELEY_DEFAULTS
/* Settings for original defaults */
const pro_ty pro[] =
{
    {"version", PRO_PRSTRING,                           0, ONOFF_NA, (int *) VERSION,                            &exp_version},
    {"v",       PRO_BOOL,                           false,       ON, &settings.verbose,                          &exp_v},
    {"ut",      PRO_BOOL,                            true,       ON, &settings.use_tabs,                         &exp_ut},
    {"ts",      PRO_INT,                                8, ONOFF_NA, &settings.tabsize,                          &exp_ts},
    {"st",      PRO_BOOL,                           false,       ON, &settings.use_stdout,                       &exp_st},
    {"ss",      PRO_BOOL,                           false,       ON, &settings.space_sp_semicolon,               &exp_ss},
    {"sob",     PRO_BOOL,                           false,       ON, &settings.swallow_optional_blanklines,      &exp_sob},
    {"sc",      PRO_BOOL,                            true,       ON, &settings.star_comment_cont,                &exp_sc},
    {"sbi",     PRO_INT,                                0, ONOFF_NA, &settings.struct_brace_indent,              &exp_sbi},
    {"saw",     PRO_BOOL,                            true,       ON, &settings.space_after_while,                &exp_saw},
    {"sai",     PRO_BOOL,                            true,       ON, &settings.space_after_if,                   &exp_sai},
    {"saf",     PRO_BOOL,                            true,       ON, &settings.space_after_for,                  &exp_saf},
    {"psl",     PRO_BOOL,                            true,       ON, &settings.procnames_start_line,             &exp_psl},
    {"prs",     PRO_BOOL,                           false,       ON, &settings.parentheses_space,                &exp_prs},
#ifdef PRESERVE_MTIME
    {"pmt",     PRO_BOOL,                           false,       ON, &settings.preserve_mtime,                   &exp_pmt},
#endif
    {"pi",      PRO_INT,                               -1, ONOFF_NA, &settings.paren_indent,                     &exp_pi},
    {"pcs",     PRO_BOOL,                           false,       ON, &settings.proc_calls_space,                 &exp_pcs},
    {"o",       PRO_BOOL,                           false,       ON, &settings.expect_output_file,               &exp_o},
    {"nv",      PRO_BOOL,                           false,      OFF, &settings.verbose,                          &exp_v},
    {"nut",     PRO_BOOL,                            true,      OFF, &settings.use_tabs,                         &exp_ut},
    {"nss",     PRO_BOOL,                           false,      OFF, &settings.space_sp_semicolon,               &exp_ss},
    {"nsob",    PRO_BOOL,                           false,      OFF, &settings.swallow_optional_blanklines,      &exp_sob},
    {"nsc",     PRO_BOOL,                            true,      OFF, &settings.star_comment_cont,                &exp_sc},
    {"nsaw",    PRO_BOOL,                            true,      OFF, &settings.space_after_while,                &exp_saw},
    {"nsai",    PRO_BOOL,                            true,      OFF, &settings.space_after_if,                   &exp_sai},
    {"nsaf",    PRO_BOOL,                            true,      OFF, &settings.space_after_for,                  &exp_saf},
    {"npsl",    PRO_BOOL,                            true,      OFF, &settings.procnames_start_line,             &exp_psl},
    {"nprs",    PRO_BOOL,                           false,      OFF, &settings.parentheses_space,                &exp_prs},
    {"npro",    PRO_IGN,                                0, ONOFF_NA, 0,                                          &exp_pro},
#ifdef PRESERVE_MTIME
    {"npmt",    PRO_BOOL,                           false,      OFF, &settings.preserve_mtime,                   &exp_pmt},
#endif
    {"npcs",    PRO_BOOL,                           false,      OFF, &settings.proc_calls_space,                 &exp_pcs},
    {"nlps",    PRO_BOOL,                           false,      OFF, &settings.leave_preproc_space,              &exp_lps},
    {"nlp",     PRO_BOOL,                            true,      OFF, &settings.lineup_to_parens,                 &exp_lp},
    {"nip",     PRO_SETTINGS,                           0, ONOFF_NA, (int *) "-ip0",                             &exp_nip},
    {"nhnl",    PRO_BOOL,                            true,      OFF, &settings.honour_newlines,                  &exp_hnl},
    {"nfca",    PRO_BOOL,                            true,      OFF, &settings.format_comments,                  &exp_fca},
    {"nfc1",    PRO_BOOL,                            true,      OFF, &settings.format_col1_comments,             &exp_fc1},
    {"neei",    PRO_BOOL,                           false,      OFF, &settings.extra_expression_indent,          &exp_eei},
    {"ndj",     PRO_BOOL,                           false,      OFF, &settings.ljust_decl,                       &exp_dj},
    {"ncs",     PRO_BOOL,                            true,      OFF, &settings.cast_space,                       &exp_cs},
    {"nce",     PRO_BOOL,                            true,      OFF, &settings.cuddle_else,                      &exp_ce},
    {"ncdw",    PRO_BOOL,                           false,      OFF, &settings.cuddle_do_while,                  &exp_cdw},
    {"ncdb",    PRO_BOOL,                            true,      OFF, &settings.comment_delimiter_on_blankline,   &exp_cdb},
    {"nbs",     PRO_BOOL,                           false,      OFF, &settings.blank_after_sizeof,               &exp_bs},
    {"nbfda",   PRO_BOOL,                           false,      OFF, &settings.break_function_decl_args,         &exp_bfda},
    {"nbfde",   PRO_BOOL,                           false,      OFF, &settings.break_function_decl_args_end,     &exp_bfde},
    {"nbc",     PRO_BOOL,                            true,       ON, &settings.leave_comma,                      &exp_bc},
    {"nbbo",    PRO_BOOL,                            true,      OFF, &settings.break_before_boolean_operator,    &exp_bbo},
    {"nbbb",    PRO_BOOL,                           false,      OFF, &settings.blanklines_before_blockcomments,  &exp_bbb},
    {"nbap",    PRO_BOOL,                           false,      OFF, &settings.blanklines_after_procs,           &exp_bap},
    {"nbadp",   PRO_BOOL,                           false,      OFF, &settings.blanklines_after_declarations_at_proctop,  &exp_badp},
    {"nbad",    PRO_BOOL,                           false,      OFF, &settings.blanklines_after_declarations,    &exp_bad},
    {"nbacc",   PRO_BOOL,                           false,      OFF, &settings.blanklines_around_conditional_compilation, &exp_bacc},
    {"lps",     PRO_BOOL,                           false,       ON, &settings.leave_preproc_space,              &exp_lps},
    {"lp",      PRO_BOOL,                            true,       ON, &settings.lineup_to_parens,                 &exp_lp},
    {"lc",      PRO_INT,     DEFAULT_RIGHT_COMMENT_MARGIN, ONOFF_NA, &settings.comment_max_col,                  &exp_lc},
    {"l",       PRO_INT,             DEFAULT_RIGHT_MARGIN, ONOFF_NA, &settings.max_col,                          &exp_l},
    {"kr",      PRO_SETTINGS,                           0, ONOFF_NA, KR_SETTINGS_STRING,                         &exp_kr},
    {"ip",      PRO_INT,                                4, ONOFF_NA, &settings.indent_parameters,                &exp_ip},
    {"i",       PRO_INT,                                4, ONOFF_NA, &settings.ind_size,                         &exp_i},
    {"hnl",     PRO_BOOL,                            true,       ON, &settings.honour_newlines,                  &exp_hnl},
    {"h",       PRO_FUNCTION,                           0, ONOFF_NA, (int *) usage,                              &exp_version},
    {"gnu",     PRO_SETTINGS,                           0, ONOFF_NA, GNU_SETTINGS_STRING,                        &exp_gnu},
    {"fca",     PRO_BOOL,                            true,       ON, &settings.format_comments,                  &exp_fca},
    {"fc1",     PRO_BOOL,                            true,       ON, &settings.format_col1_comments,             &exp_fc1},
    {"eei",     PRO_BOOL,                           false,       ON, &settings.extra_expression_indent,          &exp_eei},
    {"dj",      PRO_BOOL,                           false,       ON, &settings.ljust_decl,                       &exp_dj},
    {"di",      PRO_INT,                               16, ONOFF_NA, &settings.decl_indent,                      &exp_di},
    {"d",       PRO_INT,                                0, ONOFF_NA, &settings.unindent_displace,                &exp_d},
    {"cs",      PRO_BOOL,                            true,       ON, &settings.cast_space,                       &exp_cs},
    {"cp",      PRO_INT,                               33, ONOFF_NA, &settings.else_endif_col,                   &exp_cp},
    {"cli",     PRO_INT,                                0, ONOFF_NA, &settings.case_indent,                      &exp_cli},
    {"ci",      PRO_INT,                                4, ONOFF_NA, &settings.continuation_indent,              &exp_ci},
    {"ce",      PRO_BOOL,                            true,       ON, &settings.cuddle_else,                      &exp_ce},
    {"cdw",     PRO_BOOL,                           false,       ON, &settings.cuddle_do_while,                  &exp_cdw},
    {"cdb",     PRO_BOOL,                            true,       ON, &settings.comment_delimiter_on_blankline,   &exp_cdb},
    {"cd",      PRO_INT,                               33, ONOFF_NA, &settings.decl_com_ind,                     &exp_cd},
    {"cbi",     PRO_INT,                               -1, ONOFF_NA, &settings.case_brace_indent,                &exp_cbi},
    {"c++",     PRO_BOOL,                           false,       ON, &settings.c_plus_plus,                      &exp_cpp},
    {"c",       PRO_INT,                               33, ONOFF_NA, &settings.com_ind,                          &exp_c},
    {"bs",      PRO_BOOL,                           false,       ON, &settings.blank_after_sizeof,               &exp_bs},