Update 2024-02-14 07:51 OpenBSD/amd64-x13

.bin/OLD/t2i/text2ical.c

@@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+int main(int argc, const char *argv[])
+{
+    char buf[256];
+    int  bufpos = 0;
+    int  sepno = 0;
+    int  newevent = 1;
+    struct tm timeptr;
+
+    char *pevent, *pdate, *ptime, *comment = &buf[0];
+    char c;
+
+    memset(buf, 0x0, sizeof(buf));
+
+    printf("BEGIN:VCALENDAR\n");
+    printf("VERSION:2.0\n");
+    printf("PRODID:-//uugrn.org//Event Calendar 1.0//EN\n");
+    printf("CALSCALE:GREGORIAN\n");
+    printf("METHOD:PUBLISH\n");
+    printf("ORGANIZER:Unix User Group Rhein-Neckar\n\n");
+
+    while((c = getc(stdin)) != EOF) {
+
+        if(newevent) {
+            printf("BEGIN:VEVENT\n");
+            newevent = 0;
+        }
+
+        /* append the current charater to our buffer */
+        buf[bufpos] = c;
+
+        /* we found a tab or newline */
+        if(c == 0x9 || c == 0x0a) {
+
+            /* count it */
+            sepno++;
+
+            /* ... and terminate here, so we can print buf */
+            buf[bufpos] = 0x0;
+
+            /* skip lines without at least two tabs and one newline */
+            if(sepno < 3 && c == 0x0a) {
+                bufpos = sepno = 0;
+                continue;
+            }
+
+            if (sepno == 1)
+                printf("SUMMARY:%s\n", buf);
+
+            else if (sepno == 2) {
+                strptime(buf, "%d.%m.%Y", &timeptr);
+                printf("DTSTART:%.4d%.2d%.2d", 
+                        timeptr.tm_year + 1900,
+                        timeptr.tm_mon + 1,
+                        timeptr.tm_mday);
+
+            } else if (sepno == 3) {
+                strptime(buf, "%H:%M", &timeptr);
+                printf("%.2d%.2d\n", 
+                        timeptr.tm_hour,
+                        timeptr.tm_min);
+                printf("DTEND:%.2d%.2d\n", 
+                        timeptr.tm_hour + 3,
+                        timeptr.tm_min);
+            }
+
+            else if (sepno == 4)
+                printf("DESCRIPTION:%s\n", buf);
+
+            if (c == 0x0a) {
+                printf("END:VEVENT\n\n");
+                newevent = 1;
+
+                sepno = 0;
+            }
+
+            bufpos = 0;
+        } else 
+            bufpos++;
+    }
+
+    printf("END:VCALENDAR\n");
+
+    return 0;
+}