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examples: make the C++ examples follow our code style too

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At least mostly, not counting // comments.
This commit is contained in:
Daniel Stenberg 2017-01-08 16:38:54 +01:00
parent ed2fcd5428
commit a41e8592d6
2 changed files with 85 additions and 125 deletions
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63
docs/examples/htmltitle.cpp
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -22,14 +22,14 @@
/* <DESC>
* Get a web page, extract the title with libxml.
* </DESC>
*/
// Written by Lars Nilsson
//
// GNU C++ compile command line suggestion (edit paths accordingly):
//
// g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
// -o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
Written by Lars Nilsson
GNU C++ compile command line suggestion (edit paths accordingly):
g++ -Wall -I/opt/curl/include -I/opt/libxml/include/libxml2 htmltitle.cpp \
-o htmltitle -L/opt/curl/lib -L/opt/libxml/lib -lcurl -lxml2
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
@ -72,7 +72,7 @@ static std::string buffer;
static int writer(char *data, size_t size, size_t nmemb,
std::string *writerData)
{
if (writerData == NULL)
if(writerData == NULL)
return 0;
writerData->append(data, size*nmemb);
@ -90,50 +90,38 @@ static bool init(CURL *&conn, char *url)
conn = curl_easy_init();
if (conn == NULL)
{
if(conn == NULL) {
fprintf(stderr, "Failed to create CURL connection\n");
exit(EXIT_FAILURE);
}
code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set error buffer [%d]\n", code);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_URL, url);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set URL [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_FOLLOWLOCATION, 1L);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set redirect option [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEFUNCTION, writer);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set writer [%s]\n", errorBuffer);
return false;
}
code = curl_easy_setopt(conn, CURLOPT_WRITEDATA, &buffer);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to set write data [%s]\n", errorBuffer);
return false;
}
@ -150,8 +138,7 @@ static void StartElement(void *voidContext,
{
Context *context = (Context *)voidContext;
if (COMPARE((char *)name, "TITLE"))
{
if(COMPARE((char *)name, "TITLE")) {
context->title = "";
context->addTitle = true;
}
@ -167,7 +154,7 @@ static void EndElement(void *voidContext,
{
Context *context = (Context *)voidContext;
if (COMPARE((char *)name, "TITLE"))
if(COMPARE((char *)name, "TITLE"))
context->addTitle = false;
}
@ -179,7 +166,7 @@ static void handleCharacters(Context *context,
const xmlChar *chars,
int length)
{
if (context->addTitle)
if(context->addTitle)
context->title.append((char *)chars, length);
}
@ -273,10 +260,8 @@ int main(int argc, char *argv[])
// Ensure one argument is given
if (argc != 2)
{
if(argc != 2) {
fprintf(stderr, "Usage: %s <url>\n", argv[0]);
exit(EXIT_FAILURE);
}
@ -284,10 +269,8 @@ int main(int argc, char *argv[])
// Initialize CURL connection
if (!init(conn, argv[1]))
{
if(!init(conn, argv[1])) {
fprintf(stderr, "Connection initializion failed\n");
exit(EXIT_FAILURE);
}
@ -296,19 +279,15 @@ int main(int argc, char *argv[])
code = curl_easy_perform(conn);
curl_easy_cleanup(conn);
if (code != CURLE_OK)
{
if(code != CURLE_OK) {
fprintf(stderr, "Failed to get '%s' [%s]\n", argv[1], errorBuffer);
exit(EXIT_FAILURE);
}
// Parse the (assumed) HTML code
parseHtml(buffer, title);
// Display the extracted title
printf("Title: %s\n", title.c_str());
return EXIT_SUCCESS;