* mdocml: support more than one tag entry for the same search term;
@ 2016-11-08 15:28 schwarze
0 siblings, 0 replies; only message in thread
From: schwarze @ 2016-11-08 15:28 UTC (permalink / raw)
To: source
Log Message:
-----------
support more than one tag entry for the same search term;
general idea discussed with bcook@ during l2k16
Modified Files:
--------------
mdocml:
tag.c
Revision Data
-------------
Index: tag.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/tag.c,v
retrieving revision 1.13
retrieving revision 1.14
diff -Ltag.c -Ltag.c -u -p -r1.13 -r1.14
--- tag.c
+++ tag.c
@@ -1,6 +1,6 @@
/* $Id$ */
/*
- * Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -31,7 +31,9 @@
#include "tag.h"
struct tag_entry {
- size_t line;
+ size_t *lines;
+ size_t maxlines;
+ size_t nlines;
int prio;
char s[];
};
@@ -130,16 +132,42 @@ tag_put(const char *s, int prio, size_t
if (tag_files.tfd <= 0 || strchr(s, ' ') != NULL)
return;
+
slot = ohash_qlookup(&tag_data, s);
entry = ohash_find(&tag_data, slot);
+
if (entry == NULL) {
+
+ /* Build a new entry. */
+
len = strlen(s) + 1;
entry = mandoc_malloc(sizeof(*entry) + len);
memcpy(entry->s, s, len);
+ entry->lines = NULL;
+ entry->maxlines = entry->nlines = 0;
ohash_insert(&tag_data, slot, entry);
- } else if (entry->prio <= prio)
- return;
- entry->line = line;
+
+ } else {
+
+ /* A better entry is already present, ignore the new one. */
+
+ if (entry->prio < prio)
+ return;
+
+ /* The existing entry is worse, clear it. */
+
+ if (entry->prio > prio)
+ entry->nlines = 0;
+ }
+
+ /* Remember the new line. */
+
+ if (entry->maxlines == entry->nlines) {
+ entry->maxlines += 4;
+ entry->lines = mandoc_reallocarray(entry->lines,
+ entry->maxlines, sizeof(*entry->lines));
+ }
+ entry->lines[entry->nlines++] = line;
entry->prio = prio;
}
@@ -152,6 +180,7 @@ tag_write(void)
{
FILE *stream;
struct tag_entry *entry;
+ size_t i;
unsigned int slot;
if (tag_files.tfd <= 0)
@@ -160,8 +189,10 @@ tag_write(void)
entry = ohash_first(&tag_data, &slot);
while (entry != NULL) {
if (stream != NULL)
- fprintf(stream, "%s %s %zu\n",
- entry->s, tag_files.ofn, entry->line);
+ for (i = 0; i < entry->nlines; i++)
+ fprintf(stream, "%s %s %zu\n",
+ entry->s, tag_files.ofn, entry->lines[i]);
+ free(entry->lines);
free(entry);
entry = ohash_next(&tag_data, &slot);
}
--
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