Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/docs/examples/htmltidy.c @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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4 * / __| | | | |_) | |
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5 * | (__| |_| | _ <| |___
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6 * \___|\___/|_| \_\_____|
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7 *
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8 * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 ***************************************************************************/
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22 /* <DESC>
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23 * Download a document and use libtidy to parse the HTML.
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24 * </DESC>
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25 */
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26 /*
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27 * LibTidy => https://www.html-tidy.org/
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28 */
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29
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30 #include <stdio.h>
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31 #include <tidy.h>
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32 #include <tidybuffio.h>
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33 #include <curl/curl.h>
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34
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35 /* curl write callback, to fill tidy's input buffer... */
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36 uint write_cb(char *in, uint size, uint nmemb, TidyBuffer *out)
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37 {
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38 uint r;
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39 r = size * nmemb;
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40 tidyBufAppend(out, in, r);
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41 return r;
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42 }
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43
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44 /* Traverse the document tree */
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45 void dumpNode(TidyDoc doc, TidyNode tnod, int indent)
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46 {
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47 TidyNode child;
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48 for(child = tidyGetChild(tnod); child; child = tidyGetNext(child) ) {
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49 ctmbstr name = tidyNodeGetName(child);
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50 if(name) {
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51 /* if it has a name, then it's an HTML tag ... */
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52 TidyAttr attr;
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53 printf("%*.*s%s ", indent, indent, "<", name);
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54 /* walk the attribute list */
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55 for(attr = tidyAttrFirst(child); attr; attr = tidyAttrNext(attr) ) {
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56 printf(tidyAttrName(attr));
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57 tidyAttrValue(attr)?printf("=\"%s\" ",
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58 tidyAttrValue(attr)):printf(" ");
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59 }
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60 printf(">\n");
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61 }
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62 else {
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63 /* if it doesn't have a name, then it's probably text, cdata, etc... */
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64 TidyBuffer buf;
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65 tidyBufInit(&buf);
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66 tidyNodeGetText(doc, child, &buf);
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67 printf("%*.*s\n", indent, indent, buf.bp?(char *)buf.bp:"");
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68 tidyBufFree(&buf);
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69 }
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70 dumpNode(doc, child, indent + 4); /* recursive */
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71 }
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72 }
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73
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74
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75 int main(int argc, char **argv)
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76 {
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77 if(argc == 2) {
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78 CURL *curl;
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79 char curl_errbuf[CURL_ERROR_SIZE];
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80 TidyDoc tdoc;
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81 TidyBuffer docbuf = {0};
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82 TidyBuffer tidy_errbuf = {0};
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83 int err;
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84
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85 curl = curl_easy_init();
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86 curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
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87 curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);
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88 curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
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89 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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90 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
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91
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92 tdoc = tidyCreate();
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93 tidyOptSetBool(tdoc, TidyForceOutput, yes); /* try harder */
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94 tidyOptSetInt(tdoc, TidyWrapLen, 4096);
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95 tidySetErrorBuffer(tdoc, &tidy_errbuf);
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96 tidyBufInit(&docbuf);
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97
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98 curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);
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99 err = curl_easy_perform(curl);
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100 if(!err) {
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101 err = tidyParseBuffer(tdoc, &docbuf); /* parse the input */
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102 if(err >= 0) {
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103 err = tidyCleanAndRepair(tdoc); /* fix any problems */
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104 if(err >= 0) {
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105 err = tidyRunDiagnostics(tdoc); /* load tidy error buffer */
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106 if(err >= 0) {
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107 dumpNode(tdoc, tidyGetRoot(tdoc), 0); /* walk the tree */
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108 fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */
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109 }
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110 }
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111 }
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112 }
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113 else
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114 fprintf(stderr, "%s\n", curl_errbuf);
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115
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116 /* clean-up */
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117 curl_easy_cleanup(curl);
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118 tidyBufFree(&docbuf);
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119 tidyBufFree(&tidy_errbuf);
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120 tidyRelease(tdoc);
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121 return err;
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122
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123 }
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124 else
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125 printf("usage: %s <url>\n", argv[0]);
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126
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127 return 0;
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128 }