Commit | Line | Data |
---|---|---|
b811a28a LM |
1 | /* depend: */ |
2 | /* cflags: */ | |
3 | /* linker: debug.o */ | |
4 | ||
5 | #include <assert.h> | |
6 | #include <getopt.h> | |
7 | #include <malloc.h> | |
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
10 | #include <string.h> | |
11 | ||
12 | #include "debug.h" | |
13 | ||
14 | /* macros */ | |
15 | ||
16 | #define CEIL(x, y) (((x) + (y) - 1) / (y)) | |
17 | #define MIN(x, y) (((x) < (y)) ? (x) : (y)) | |
18 | #define MAX(x, y) (((x) > (y)) ? (x) : (y)) | |
19 | ||
20 | //#define BUFFERSIZE 4096 | |
21 | #define BUFFERSIZE 256 | |
22 | ||
23 | /* gobal variables */ | |
24 | ||
25 | char *progname = NULL; | |
26 | ||
27 | /* help function */ | |
28 | ||
29 | void usage (int ret) | |
30 | { | |
31 | FILE *fd = ret ? stderr : stdout; | |
32 | fprintf (fd, "usage: %s [-i file] [-h] [-m k&r|ansi|c99] [-o file] [-v]\n", progname); | |
33 | fprintf (fd, " -i : input file\n"); | |
34 | fprintf (fd, " -h : help message\n"); | |
35 | fprintf (fd, " -m : indent mode\n"); | |
36 | fprintf (fd, " -o : output file\n"); | |
37 | fprintf (fd, " -v : verbose level (%d)\n", verbose); | |
38 | ||
39 | exit (ret); | |
40 | } | |
41 | ||
42 | /* indent function */ | |
43 | ||
44 | int indent (FILE *fin, FILE *fout) { | |
45 | char buffer[BUFFERSIZE + 1] = {0}; | |
46 | ||
47 | char *pt = buffer; | |
48 | while (!feof (fin)) { | |
49 | int nb = fread (pt, 1, BUFFERSIZE - (pt - buffer), fin); | |
50 | VERBOSE (DEBUG, fprintf (stdout, "buffer: %d\n", nb)); | |
51 | pt = buffer; | |
52 | int i = 0; | |
53 | while (pt[i] != '\0') { | |
54 | if (pt[i++] == '\n') { | |
55 | pt[i - 1] = 0; | |
56 | ||
57 | /* process line */ | |
58 | char *line = pt; | |
59 | VERBOSE (DEBUG, fprintf (stdout, "line: %d\n", strlen (line))); | |
60 | VERBOSE (DEBUG, fprintf (stdout, "out: %s\n", line)); | |
61 | int k = 0; | |
62 | int begin = 0; | |
63 | while (line[k] != '\0') { | |
64 | switch (line[k]) { | |
65 | case ' ': | |
66 | case '\t': | |
67 | if (begin) trailing++; | |
68 | break; | |
69 | default: | |
70 | begin = 0; | |
71 | ||
72 | pt += i; | |
73 | i = 0; | |
74 | } | |
75 | } | |
76 | /* copy end buffer */ | |
77 | int j = 0; | |
78 | if (pt - buffer < BUFFERSIZE) { | |
79 | for (i = pt - buffer; i < BUFFERSIZE; i++) { | |
80 | buffer[j++] = *pt++; | |
81 | } | |
82 | } | |
83 | pt = buffer + j; | |
84 | } | |
85 | ||
86 | /* close all */ | |
87 | fclose (fin); | |
88 | fclose (fout); | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | /* main function */ | |
94 | ||
95 | int main (int argc, char *argv[]) | |
96 | { | |
97 | char *input = NULL; | |
98 | char *mode = "ansi"; | |
99 | char *output = NULL; | |
100 | ||
101 | /* get basename */ | |
102 | char *pt = progname = argv[0]; | |
103 | while (*pt) { | |
104 | if ((*pt == '/') || (*pt == '\\')) { | |
105 | progname = pt + 1; | |
106 | } | |
107 | pt++; | |
108 | } | |
109 | ||
110 | int c; | |
111 | while ((c = getopt(argc, argv, "i:hm:o:v:")) != EOF) { | |
112 | switch (c) { | |
113 | case 'i': | |
114 | input = optarg; | |
115 | break; | |
116 | case 'm': | |
117 | mode = optarg; | |
118 | break; | |
119 | case 'o': | |
120 | output = optarg; | |
121 | break; | |
122 | case 'v': | |
123 | verbose = atoi (optarg); | |
124 | break; | |
125 | case 'h': | |
126 | default: | |
127 | usage (c != 'h'); | |
128 | } | |
129 | } | |
130 | if (argc - optind != 0) { | |
131 | fprintf (stderr, "%s: invalid option -- %s\n", progname, argv[optind]); | |
132 | usage (1); | |
133 | } | |
134 | ||
135 | /* check input */ | |
136 | FILE *fin = NULL; | |
137 | if (input) { | |
138 | fin = fopen (input, "rb"); | |
139 | if (!fin) { | |
140 | VERBOSE (ERROR, fprintf (stderr, "error: can't open file '%s'\n", input)); | |
141 | } | |
142 | } else { | |
143 | fin = stdin; | |
144 | } | |
145 | ||
146 | /* check output */ | |
147 | FILE *fout = NULL; | |
148 | if (output) { | |
149 | fout = fopen (input, "wb"); | |
150 | if (!fout) { | |
151 | VERBOSE (ERROR, fprintf (stderr, "error: can't open file '%s'\n", output)); | |
152 | fclose (fin); | |
153 | } | |
154 | } else { | |
155 | fout = stdout; | |
156 | } | |
157 | ||
158 | return indent (fin, fout); | |
159 | } | |
160 | ||
161 | // test: indent.exe -h | |
162 | // test: indent.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
163 | // test: indent.exe -_ 2> /dev/null | awk 'END { if (NR == 0) { exit(0) } else exit (1) }' | |
164 | // test: indent.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
165 | ||
166 | /* vim: set ts=4 sw=4 et: */ |