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[src/trunk]: src/usr.sbin/makemandb Encapsulate all the arguments required by...
details: https://anonhg.NetBSD.org/src/rev/36926d8dd3e5
branches: trunk
changeset: 828051:36926d8dd3e5
user: abhinav <abhinav%NetBSD.org@localhost>
date: Sat Nov 25 14:29:38 2017 +0000
description:
Encapsulate all the arguments required by the query callback function in a struct.
If we want to add or remove arguments from the callback functions, it requires
changing the callback interface all over the place. By letting the callback simply
expect a single struct argument, it would clean things up a bit.
ok christos
diffstat:
usr.sbin/makemandb/apropos-utils.c | 99 +++++++++++++++++++------------------
usr.sbin/makemandb/apropos-utils.h | 16 ++++-
usr.sbin/makemandb/apropos.c | 22 +++----
3 files changed, 75 insertions(+), 62 deletions(-)
diffs (297 lines):
diff -r a302ae3b6356 -r 36926d8dd3e5 usr.sbin/makemandb/apropos-utils.c
--- a/usr.sbin/makemandb/apropos-utils.c Sat Nov 25 13:18:02 2017 +0000
+++ b/usr.sbin/makemandb/apropos-utils.c Sat Nov 25 14:29:38 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: apropos-utils.c,v 1.39 2017/08/01 16:16:32 abhinav Exp $ */
+/* $NetBSD: apropos-utils.c,v 1.40 2017/11/25 14:29:38 abhinav Exp $ */
/*-
* Copyright (c) 2011 Abhinav Upadhyay <er.abhinav.upadhyay%gmail.com@localhost>
* All rights reserved.
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: apropos-utils.c,v 1.39 2017/08/01 16:16:32 abhinav Exp $");
+__RCSID("$NetBSD: apropos-utils.c,v 1.40 2017/11/25 14:29:38 abhinav Exp $");
#include <sys/queue.h>
#include <sys/stat.h>
@@ -56,8 +56,7 @@
typedef struct orig_callback_data {
void *data;
- int (*callback) (void *, const char *, const char *, const char *,
- const char *, size_t);
+ int (*callback) (query_callback_args*);
} orig_callback_data;
typedef struct inverse_document_frequency {
@@ -657,15 +656,12 @@
execute_search_query(sqlite3 *db, char *query, query_args *args)
{
sqlite3_stmt *stmt;
- const char *section;
char *name;
char *slash_ptr;
- const char *name_desc;
- const char *machine;
- const char *snippet = "";
const char *name_temp;
char *m = NULL;
int rc;
+ query_callback_args callback_args;
inverse_document_frequency idf = {0, 0};
if (!args->legacy) {
@@ -693,25 +689,27 @@
unsigned int nresults = 0;
while (sqlite3_step(stmt) == SQLITE_ROW) {
nresults++;
- section = (const char *) sqlite3_column_text(stmt, 0);
+ callback_args.section = (const char *) sqlite3_column_text(stmt, 0);
name_temp = (const char *) sqlite3_column_text(stmt, 1);
- name_desc = (const char *) sqlite3_column_text(stmt, 2);
- machine = (const char *) sqlite3_column_text(stmt, 3);
+ callback_args.name_desc = (const char *) sqlite3_column_text(stmt, 2);
+ callback_args.machine = (const char *) sqlite3_column_text(stmt, 3);
if (!args->legacy)
- snippet = (const char *) sqlite3_column_text(stmt, 4);
+ callback_args.snippet = (const char *) sqlite3_column_text(stmt, 4);
+ else
+ callback_args.snippet = "";
if ((slash_ptr = strrchr(name_temp, '/')) != NULL)
name_temp = slash_ptr + 1;
- if (machine && machine[0]) {
- m = estrdup(machine);
+ if (callback_args.machine && callback_args.machine[0]) {
+ m = estrdup(callback_args.machine);
easprintf(&name, "%s/%s", lower(m), name_temp);
free(m);
} else {
name = estrdup((const char *)
sqlite3_column_text(stmt, 1));
}
-
- (args->callback)(args->callback_data, section, name,
- name_desc, snippet, args->legacy? 0: strlen(snippet));
+ callback_args.name = name;
+ callback_args.other_data = args->callback_data;
+ (args->callback)(&callback_args);
free(name);
}
sqlite3_finalize(stmt);
@@ -818,20 +816,20 @@
* calls the actual user supplied callback function.
*/
static int
-callback_html(void *data, const char *section, const char *name,
- const char *name_desc, const char *snippet, size_t snippet_length)
+callback_html(query_callback_args *callback_args)
{
- struct orig_callback_data *orig_data = data;
- int (*callback)(void *, const char *, const char *, const char *,
- const char *, size_t) = orig_data->callback;
- size_t length = snippet_length;
- size_t name_description_length = strlen(name_desc);
- char *qsnippet = get_escaped_html_string(snippet, &length);
- char *qname_description = get_escaped_html_string(name_desc,
+ struct orig_callback_data *orig_data = callback_args->other_data;
+ int (*callback)(query_callback_args*) = orig_data->callback;
+ size_t length = callback_args->snippet_length;
+ size_t name_description_length = strlen(callback_args->name_desc);
+ char *qsnippet = get_escaped_html_string(callback_args->snippet, &length);
+ char *qname_description = get_escaped_html_string(callback_args->name_desc,
&name_description_length);
-
- (*callback)(orig_data->data, section, name, qname_description,
- qsnippet, length);
+ callback_args->name_desc = qname_description;
+ callback_args->snippet = qsnippet;
+ callback_args->snippet_length = length;
+ callback_args->other_data = orig_data->data;
+ (*callback)(callback_args);
free(qsnippet);
free(qname_description);
return 0;
@@ -889,12 +887,11 @@
* more or less.
*/
static int
-callback_pager(void *data, const char *section, const char *name,
- const char *name_desc, const char *snippet, size_t snippet_length)
+callback_pager(query_callback_args *callback_args)
{
- struct orig_callback_data *orig_data = data;
+ struct orig_callback_data *orig_data = callback_args->other_data;
char *psnippet;
- const char *temp = snippet;
+ const char *temp = callback_args->snippet;
int count = 0;
int i = 0, did;
size_t sz = 0;
@@ -913,7 +910,7 @@
temp++;
}
- psnippet_length = snippet_length + count;
+ psnippet_length = callback_args->snippet_length + count;
psnippet = emalloc(psnippet_length + 1);
/* Copy the bytes from snippet to psnippet:
@@ -923,6 +920,7 @@
* 3. To overstrike a byte 'A' we need to write 'A\bA'
*/
did = 0;
+ const char *snippet = callback_args->snippet;
while (*snippet) {
sz = strcspn(snippet, "\002");
memcpy(&psnippet[i], snippet, sz);
@@ -945,11 +943,16 @@
}
psnippet[i] = 0;
- char *ul_section = ul_pager(did, section);
- char *ul_name = ul_pager(did, name);
- char *ul_name_desc = ul_pager(did, name_desc);
- (orig_data->callback)(orig_data->data, ul_section, ul_name,
- ul_name_desc, psnippet, psnippet_length);
+ char *ul_section = ul_pager(did, callback_args->section);
+ char *ul_name = ul_pager(did, callback_args->name);
+ char *ul_name_desc = ul_pager(did, callback_args->name_desc);
+ callback_args->section = ul_section;
+ callback_args->name = ul_name;
+ callback_args->name_desc = ul_name_desc;
+ callback_args->snippet = psnippet;
+ callback_args->snippet_length = psnippet_length;
+ callback_args->other_data = orig_data->data;
+ (orig_data->callback)(callback_args);
free(ul_section);
free(ul_name);
free(ul_name_desc);
@@ -982,17 +985,19 @@
* more or less.
*/
static int
-callback_term(void *data, const char *section, const char *name,
- const char *name_desc, const char *snippet, size_t snippet_length)
+callback_term(query_callback_args *callback_args)
{
- struct term_args *ta = data;
+ struct term_args *ta = callback_args->other_data;
struct orig_callback_data *orig_data = ta->orig_data;
- char *ul_section = ul_term(section, ta);
- char *ul_name = ul_term(name, ta);
- char *ul_name_desc = ul_term(name_desc, ta);
- (orig_data->callback)(orig_data->data, ul_section, ul_name,
- ul_name_desc, snippet, snippet_length);
+ char *ul_section = ul_term(callback_args->section, ta);
+ char *ul_name = ul_term(callback_args->name, ta);
+ char *ul_name_desc = ul_term(callback_args->name_desc, ta);
+ callback_args->section = ul_section;
+ callback_args->name = ul_name;
+ callback_args->name_desc = ul_name_desc;
+ callback_args->other_data = orig_data->data;
+ (orig_data->callback)(callback_args);
free(ul_section);
free(ul_name);
free(ul_name_desc);
diff -r a302ae3b6356 -r 36926d8dd3e5 usr.sbin/makemandb/apropos-utils.h
--- a/usr.sbin/makemandb/apropos-utils.h Sat Nov 25 13:18:02 2017 +0000
+++ b/usr.sbin/makemandb/apropos-utils.h Sat Nov 25 14:29:38 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: apropos-utils.h,v 1.13 2017/06/18 16:24:10 abhinav Exp $ */
+/* $NetBSD: apropos-utils.h,v 1.14 2017/11/25 14:29:38 abhinav Exp $ */
/*-
* Copyright (c) 2011 Abhinav Upadhyay <er.abhinav.upadhyay%gmail.com@localhost>
* All rights reserved.
@@ -71,6 +71,16 @@
MANSEC_NONE
};
+typedef struct query_callback_args {
+ const char *name;
+ const char *section;
+ const char *machine;
+ const char *name_desc;
+ const char *snippet;
+ size_t snippet_length;
+ void *other_data;
+} query_callback_args;
+
typedef struct query_args {
const char *search_str; // user query
char **sections; // Sections in which to do the search
@@ -78,12 +88,12 @@
int offset; //From which position to start processing the records
int legacy;
const char *machine;
- int (*callback) (void *, const char *, const char *, const char *,
- const char *, size_t); // The callback function
+ int (*callback) (query_callback_args *);
void *callback_data; // data to pass to the callback function
char **errmsg; // buffer for storing the error msg
} query_args;
+
typedef enum query_format {
APROPOS_NONE,
APROPOS_PAGER,
diff -r a302ae3b6356 -r 36926d8dd3e5 usr.sbin/makemandb/apropos.c
--- a/usr.sbin/makemandb/apropos.c Sat Nov 25 13:18:02 2017 +0000
+++ b/usr.sbin/makemandb/apropos.c Sat Nov 25 14:29:38 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: apropos.c,v 1.23 2017/08/02 12:52:18 jmcneill Exp $ */
+/* $NetBSD: apropos.c,v 1.24 2017/11/25 14:29:38 abhinav Exp $ */
/*-
* Copyright (c) 2011 Abhinav Upadhyay <er.abhinav.upadhyay%gmail.com@localhost>
* All rights reserved.
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: apropos.c,v 1.23 2017/08/02 12:52:18 jmcneill Exp $");
+__RCSID("$NetBSD: apropos.c,v 1.24 2017/11/25 14:29:38 abhinav Exp $");
#include <err.h>
#include <stdio.h>
@@ -60,8 +60,7 @@
} callback_data;
static char *remove_stopwords(const char *);
-static int query_callback(void *, const char * , const char *, const char *,
- const char *, size_t);
+static int query_callback(query_callback_args *);
__dead static void usage(void);
#define _PATH_PAGER "/usr/bin/more -s"
@@ -286,22 +285,21 @@
* output stream.
*/
static int
-query_callback(void *data, const char *section, const char *name,
- const char *name_desc, const char *snippet, size_t snippet_length)
+query_callback(query_callback_args *qargs)
{
- callback_data *cbdata = (callback_data *) data;
+ callback_data *cbdata = (callback_data *) qargs->other_data;
FILE *out = cbdata->out;
cbdata->count++;
if (cbdata->aflags->format != APROPOS_HTML) {
fprintf(out, cbdata->aflags->legacy ? "%s(%s) - %s\n" :
- "%s (%s)\t%s\n", name, section, name_desc);
+ "%s (%s)\t%s\n", qargs->name, qargs->section, qargs->name_desc);
if (cbdata->aflags->no_context == 0)
- fprintf(out, "%s\n\n", snippet);
+ fprintf(out, "%s\n\n", qargs->snippet);
} else {
- fprintf(out, "<tr><td>%s(%s)</td><td>%s</td></tr>\n", name,
- section, name_desc);
+ fprintf(out, "<tr><td>%s(%s)</td><td>%s</td></tr>\n", qargs->name,
+ qargs->section, qargs->name_desc);
if (cbdata->aflags->no_context == 0)
- fprintf(out, "<tr><td colspan=2>%s</td></tr>\n", snippet);
+ fprintf(out, "<tr><td colspan=2>%s</td></tr>\n", qargs->snippet);
}
return 0;
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