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ics2tree.c - ics2txt - convert icalendar .ics file to plain text |
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git clone git://bitreich.org/ics2txt git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/ics2txt (git://bitreich.org) |
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README |
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--- |
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ics2tree.c (1959B) |
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--- |
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1 #include <unistd.h> |
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2 #include <errno.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <string.h> |
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6 #include <strings.h> |
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7 #include "ical.h" |
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8 #include "util.h" |
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9 |
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10 #ifndef __OpenBSD__ |
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11 #define pledge(...) 0 |
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12 #endif |
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13 |
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14 static void |
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15 print_ruler(int level) |
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16 { |
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17 while (level-- > 0) |
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18 fprintf(stdout, ": "); |
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19 } |
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20 |
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21 static int |
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22 fn_field_name(IcalParser *p, char *name) |
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23 { |
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24 print_ruler(ical_get_level(p)); |
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25 printf("name %s\n", name); |
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26 fflush(stdout); |
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27 return 0; |
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28 } |
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29 |
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30 static int |
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31 fn_block_begin(IcalParser *p, char *name) |
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32 { |
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33 print_ruler(ical_get_level(p) - 1); |
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34 printf("begin %s\n", name); |
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35 fflush(stdout); |
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36 return 0; |
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37 } |
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38 |
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39 static int |
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40 fn_param_value(IcalParser *p, char *name, char *value) |
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41 { |
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42 print_ruler(ical_get_level(p) + 1); |
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43 printf("param %s=%s\n", name, value); |
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44 fflush(stdout); |
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45 return 0; |
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46 } |
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47 |
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48 static int |
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49 fn_field_value(IcalParser *p, char *name, char *value) |
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50 { |
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51 size_t len; |
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52 (void)name; |
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53 |
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54 if (ical_get_value(p, value, &len) < 0) |
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55 return -1; |
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56 print_ruler(ical_get_level(p) + 1); |
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57 if (strcasecmp(name, "DTSTART") == 0 || |
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58 strcasecmp(name, "DTSTAMP") == 0 || |
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59 strcasecmp(name, "DTEND") == 0) { |
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60 time_t t; |
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61 if (ical_get_time(p, value, &t) != 0) |
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62 warn("%s: %s", p->errmsg, value); |
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63 printf("epoch %lld\n", t); |
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64 } else { |
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65 printf("value %s\n", value); |
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66 } |
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67 fflush(stdout); |
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68 return 0; |
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69 } |
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70 |
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71 int |
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72 main(int argc, char **argv) |
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73 { |
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74 IcalParser p = {0}; |
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75 arg0 = *argv++; |
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76 |
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77 if (pledge("stdio", "") < 0) |
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78 err(1, "pledge: %s", strerror(errno)); |
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79 |
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80 p.fn_field_name = fn_field_name; |
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81 p.fn_block_begin = fn_block_begin; |
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82 p.fn_param_value = fn_param_value; |
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83 p.fn_field_value = fn_field_value; |
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84 |
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85 if (*argv == NULL) { |
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86 if (ical_parse(&p, stdin) < 0) |
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87 err(1, "parsing stdin:%d: %s", p.linenum, p.errmsg); |
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88 } |
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89 |
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90 for (; *argv != NULL; argv++, argc--) { |
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91 FILE *fp; |
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92 |
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93 debug("converting \"%s\"", *argv); |
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94 if ((fp = fopen(*argv, "r")) == NULL) |
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95 err(1, "opening %s", *argv); |
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96 if (ical_parse(&p, fp) < 0) |
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97 err(1, "parsing %s:%d: %s", *argv, p.linenum, p.errmsg); |
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98 fclose(fp); |
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99 } |
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100 return 0; |
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101 } |
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