--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/helpgen/topic.c	Sat Dec 22 17:52:45 2007 -0500
@@ -0,0 +1,83 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "utils.h"
+#include "topic.h"
+
+#define MAXTITLES 16
+#define MAXREFS   64
+
+struct topic {
+  char *titles[MAXTITLES];
+  int numtitles;
+  char *refs[MAXREFS];
+  int numrefs;
+  char *body;
+};
+
+struct topic *topic_create(void) {
+  struct topic *t = domalloc(sizeof(struct topic));
+  t->numtitles = 0;
+  t->numrefs = 0;
+  t->body = NULL;
+  return t;
+}
+
+void topic_destroy(struct topic *t) {
+  int i;
+  for (i=0; i<t->numtitles; i++) {
+    free(t->titles[i]);
+  }
+  for (i=0; i<t->numrefs; i++) {
+    free(t->refs[i]);
+  }
+  if (t->body) {
+    free(t->body);
+  }
+  free(t);
+}
+
+void topic_addtitle(struct topic *t, const char *s) {
+  if (t->numtitles >= MAXTITLES) {
+    fprintf(stderr, "Too many titles (increase MAXTITLES) at %s\n", s);
+    exit(1);
+  }
+  t->titles[t->numtitles++] = dostrdup(s);
+}
+
+void topic_addref(struct topic *t, const char *s) {
+  if (t->numrefs >= MAXREFS) {
+    fprintf(stderr, "Too many refs (increase MAXREFS) at %s\n", s);
+    exit(1);
+  }
+  t->refs[t->numrefs++] = dostrdup(s);
+}
+
+void topic_setbody(struct topic *t, const char *buf, size_t len) {
+  size_t i, j, reallen = 0;
+
+  for (i=0; i<len; i++) {
+    if (buf[i] != '\r') {
+      reallen++;
+    }
+  }
+  
+  char *text = domalloc(reallen+1);
+  for (i=j=0; i<len; i++) {
+    if (buf[i] != '\r') {
+      text[j++] = buf[i];
+    }
+  }
+  assert(j==reallen);
+  text[reallen] = 0;
+
+  t->body = text;
+}
+
+const char *topic_getbody(struct topic *t) { return t->body; }
+int topic_getnumtitles(struct topic *t) { return t->numtitles; }
+const char *topic_gettitle(struct topic *t, int ix) { return t->titles[ix]; }
+int topic_getnumrefs(struct topic *t) { return t->numrefs; }
+const char *topic_getref(struct topic *t, int ix) { return t->refs[ix]; }