Home | History | Annotate | Line # | Download | only in indent
opt_eei.c revision 1.5 
      1 /* $NetBSD: opt_eei.c,v 1.5 2021/11/07 08:03:15 rillig Exp $ */
      2 /* $FreeBSD$ */
      3 
      4 /*
      5  * Tests for the options '-eei' and '-neei'.
      6  *
      7  * The option '-eei' enables extra indentation on continuation lines of the
      8  * expression part of 'if' and 'while' statements. These continuation lines
      9  * are indented one extra level.
     10  *
     11  * The option '-neei' indents these conditions in the same way as all other
     12  * continued statements.
     13  */
     14 
     15 #indent input
     16 bool
     17 less(int a, int b)
     18 {
     19 	if (a <
     20 	    b)
     21 		return true;
     22 	if (a
     23 	    <
     24 	    b)
     25 		return true;
     26 }
     27 #indent end
     28 
     29 #indent run -eei
     30 bool
     31 less(int a, int b)
     32 {
     33 	if (a <
     34 			b)
     35 		return true;
     36 	if (a
     37 			<
     38 			b)
     39 		return true;
     40 }
     41 #indent end
     42 
     43 #indent run-equals-input -neei
     44 
     45 /*
     46  * When the indentation level is the same as the continuation indentation, the
     47  * indentation does not show the structure of the code.
     48  */
     49 #indent run -neei -i4
     50 bool
     51 less(int a, int b)
     52 {
     53     if (a <
     54 	b)
     55 	return true;
     56     if (a
     57 	<
     58 	b)
     59 	return true;
     60 }
     61 #indent end
     62 
     63 /*
     64  * Adding the extra level of indentation is useful when the standard
     65  * indentation is the same as the indentation of statement continuations. In
     66  * such a case, the continued condition would have the same indentation as the
     67  * following statement, which would be confusing.
     68  */
     69 #indent run -eei -i4
     70 bool
     71 less(int a, int b)
     72 {
     73     if (a <
     74 	    b)
     75 	return true;
     76     if (a
     77 	    <
     78 	    b)
     79 	return true;
     80 }
     81 #indent end
     82 
     83 /*
     84  * With an indentation size of 4, the width of the code 'if (' is exactly one
     85  * indentation level. With the option '-nlp', the option '-eei' has no effect.
     86  *
     87  * XXX: This is unexpected since this creates the exact ambiguity that the
     88  * option '-eei' is supposed to prevent.
     89  */
     90 #indent run -eei -i4 -nlp
     91 bool
     92 less(int a, int b)
     93 {
     94     if (a <
     95 	b)
     96 	return true;
     97     if (a
     98 	<
     99 	b)
    100 	return true;
    101 }
    102 #indent end
    103 
    104 
    105 /*
    106  * The option '-eei' applies no matter whether the continued expression starts
    107  * with a word or an operator like '&&'. The latter cannot start a statement,
    108  * so there would be no ambiguity.
    109  */
    110 #indent input
    111 {
    112 	if (a
    113 && b)
    114 	    stmt();
    115 }
    116 #indent end
    117 
    118 /*
    119  * XXX: The extra indentation is unnecessary since there is no possible
    120  * confusion: the standard indentation is 8, the indentation of the continued
    121  * condition could have stayed at 4.
    122  */
    123 #indent run -eei
    124 {
    125 	if (a
    126 			&& b)
    127 		stmt();
    128 }
    129 #indent end
    130 
    131 /*
    132  * The extra indentation is necessary here since otherwise the '&&' and the
    133  * 'stmt()' would start at the same indentation.
    134  */
    135 #indent run -eei -i4
    136 {
    137     if (a
    138 	    && b)
    139 	stmt();
    140 }
    141 #indent end
    142 
    143 /*
    144  * With an indentation size of 4, the width of the code 'if (' is exactly one
    145  * indentation level. With the option '-nlp', the option '-eei' has no effect.
    146  *
    147  * XXX: This is unexpected since this creates the exact ambiguity that the
    148  * option '-eei' is supposed to prevent.
    149  */
    150 #indent run -eei -i4 -nlp
    151 {
    152     if (a
    153 	&& b)
    154 	stmt();
    155 }
    156 #indent end
    157