1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * Post-process adb scripts to move increment and decrement around.
31 * The reason is that at the start of each +/ line, adb prints out
32 * the current location. If the line then increments or decrements
33 * dot before printing the user may be confused. So we move the
34 * increment or decrement to the preceeding line.
35 */
36
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <ctype.h>
41
42 #define BUFSIZE 1024 /* gross enough to never be exceeded (we hope) */
43
44 char buf1[BUFSIZE], buf2[BUFSIZE];
45
46 static char *scanpastnum(char *);
47 static int goodstart(char *);
48
49 int
main()50 main()
51 {
52 char *cur, *last, *cp1, *cp2, *ep, *t;
53 int len;
54
55 gets(buf1);
56 last = buf1;
57 cur = buf2;
58 while (gets(cur) != NULL) {
59 if (goodstart(cur) && goodstart(last)) {
60 /*
61 * Scan cur for initial increment.
62 * Ignore quoted strings, tabbing, adb newlines.
63 */
64 cp1 = cur + 2;
65 while (*cp1) {
66 if (*cp1 == '"') {
67 /* scan past quoted string */
68 while (*++cp1 && *cp1 != '"')
69 ;
70 cp1++;
71 continue;
72 }
73 if (*cp1 >= '0' && *cp1 <= '9') {
74 cp2 = scanpastnum(cp1);
75 } else {
76 cp2 = cp1;
77 }
78 if (*cp2 == 't' || *cp2 == 'n' ||
79 *cp2 == ' ') {
80 /* ok to skip over this one */
81 cp1 = cp2 + 1;
82 continue;
83 } else {
84 break;
85 }
86 }
87 /*
88 * Cp1 now points at the first non-quoted string and
89 * non adb tab specification.
90 * Now determine if it's an increment or decrement.
91 */
92 cp2 = scanpastnum(cp1);
93 if (*cp2 == '+' || *cp2 == '-') {
94 /*
95 * This is what we were hoping to find.
96 * Move increment or decrement into last.
97 */
98 cp2++;
99 ep = last + strlen(last);
100 len = cp2 - cp1;
101 strncpy(ep, cp1, len);
102 ep[len] = '\0';
103 /*
104 * Remove it from cur.
105 */
106 strcpy(cp1, cp2);
107 }
108 }
109 /*
110 * Prepare for next iteration.
111 */
112 puts(last);
113 t = cur;
114 cur = last;
115 last = t;
116 }
117 puts(last);
118 return (0);
119 }
120
121 /*
122 * Cp points at a digit.
123 * Return pointer to next char that isn't a digit.
124 */
125 static char *
scanpastnum(char * cp1)126 scanpastnum(char *cp1)
127 {
128 char *cp2;
129
130 for (cp2 = cp1; isdigit(*cp2); cp2++)
131 ;
132 return (cp2);
133 }
134
135 /*
136 * Check whether a line has a good starting string.
137 * We need ./ or +/ at the beginning to even think
138 * of doing this motion stuff.
139 */
140 static int
goodstart(char * cp)141 goodstart(char *cp)
142 {
143 if (*cp == '.' || *cp == '+') {
144 if (*++cp == '/')
145 return (1);
146 }
147 return (0);
148 }
149