4 void debug_flush(void) {
5 sysassert(!ferror(debug));
6 sysassert(!fflush(debug));
9 const char *get_vardir(void) { return "."; }
14 mf_readscreenshot= 0020,
17 mode_findwindow= 0001,
18 mode_screenshot= 0011,
24 static char *o_screenshots_fn;
25 static int o_single_page, o_quiet;
27 FILE *screenshots_file;
30 static void badusage(const char *fmt, ...)
31 __attribute__((format(printf,1,2),noreturn));
32 static void badusage(const char *fmt, ...) {
38 static void open_screenshots_file(const char *mode) {
39 screenshots_file= fopen(o_screenshots_fn, mode);
40 if (!screenshots_file)
41 fatal("could not open screenshots file `%s': %s",
42 o_screenshots_fn, strerror(errno));
45 int main(int argc, char **argv) {
49 #define ARGVAL ((*++argv) ? *argv : \
50 badusage("missing value for option %s",arg),(char*)0)
52 while ((arg=*++argv)) {
53 if (!strcmp(arg,"--find-window-only"))
54 o_mode= mode_findwindow;
55 else if (!strcmp(arg,"--screenshot-only"))
56 o_mode= mode_screenshot;
57 else if (!strcmp(arg,"--analyse-only"))
59 else if (!strcmp(arg,"--single-page"))
61 else if (!strcmp(arg,"--quiet"))
63 else if (!strcmp(arg,"--screenshots-file"))
64 o_screenshots_fn= ARGVAL;
66 else if (!strcmp(arg,"-D" #f)) \
67 debug_flags |= dbg_##f;
70 else if (!strcmp(arg,"--window-id")) {
72 unsigned long windowid= strtoul(ARGVAL,&ep,0);
73 if (*ep) badusage("invalid window id");
74 set_yppclient_window(windowid);
76 badusage("unknown option `%s'",arg);
79 if (!o_screenshots_fn) {
80 r= asprintf(&o_screenshots_fn,"%s/#pages#.ppm",get_vardir());
84 if (o_mode & mf_findwindow) {
86 find_yppclient_window();
88 if (o_mode & mf_screenshot) {
89 open_screenshots_file("w");
90 if (o_single_page) take_one_screenshot();
91 else take_screenshots();
93 if (o_mode & mf_readscreenshot) {
94 open_screenshots_file("r");
95 if (o_single_page) read_one_screenshot();
96 else read_screenshots();
98 if (o_mode & mf_analyse) {
108 DEFINE_VWRAPPERF(, progress, )
109 DEFINE_VWRAPPERF(, progress_log, )
110 DEFINE_VWRAPPERF(, progress_spinner, )
111 DEFINE_VWRAPPERF(, warning, )
112 DEFINE_VWRAPPERF(, fatal, NORET)
114 static int last_progress_len;
116 static void vprogress_core(int spinner, const char *fmt, va_list al) {
120 if (!isatty(2)) return;
122 if (last_progress_len)
125 r= vfprintf(stderr,fmt,al);
128 putc(spinner,stderr);
132 if (r < last_progress_len) {
133 fprintf(stderr,"%*s", last_progress_len - r, "");
134 if (!r) putc('\r', stderr);
135 else while (last_progress_len-- > r) putc('\b',stderr);
137 last_progress_len= r;
139 if (ferror(stderr) || fflush(stderr)) _exit(16);
142 void vprogress(const char *fmt, va_list al) { vprogress_core(0,fmt,al); }
143 void vprogress_spinner(const char *fmt, va_list al) {
144 static const char spinchars[]="/-\\";
147 vprogress_core(spinchars[spinner],fmt,al);
149 spinner %= (sizeof(spinchars)-1);
152 void vprogress_log(const char *fmt, va_list al) {
156 vfprintf(stderr,fmt,al);
161 void vwarning(const char *fmt, va_list al) {
163 fputs("Warning: ",stderr);
164 vfprintf(stderr,fmt,al);
169 void vfatal(const char *fmt, va_list al) {
171 fputs("\n\nFatal error: ",stderr);
172 vfprintf(stderr,fmt,al);
174 fputs("\n\n",stderr);
178 void sysassert_fail(const char *file, int line, const char *what) {
182 "\nfatal operational error:\n"
183 " unsuccessful execution of: %s\n"
185 what, file,line, strerror(e));
189 void *mmalloc(size_t sz) {
192 sysassert( r= malloc(sz) );
195 void *mrealloc(void *p, size_t sz) {
198 sysassert( r= realloc(p,sz) );