Changeset 77 for trunk/samba/source/iniparser/html/index.html
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- Sep 30, 2007, 3:42:50 AM (18 years ago)
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trunk/samba/source/iniparser/html/index.html
r1 r77 11 11 12 12 13 <!-- Generated by Doxygen 1. 4.4-->14 <h1>iniparser documentation 13 <!-- Generated by Doxygen 1.5.1 --> 14 <h1>iniparser documentation</h1> 15 15 <p> 16 16 <h3 align="center">2.x </h3><hr> … … 23 23 An ini file is an ASCII file describing simple parameters (character strings, integers, floating-point values or booleans) in an explicit format, easy to use and modify for users.<p> 24 24 An ini file is segmented into Sections, declared by the following syntax:<p> 25 <div class="fragment"><pre class="fragment"> [Section Name] 25 <div class="fragment"><pre class="fragment"> 26 [Section Name] 26 27 </pre></div><p> 27 28 i.e. the section name enclosed in square brackets, alone on a line. Sections names are allowed to contain any character but square brackets or linefeeds. Slashes (/) are also reserved for hierarchical sections (see below).<p> 28 29 In any section are zero or more variables, declared with the following syntax:<p> 29 <div class="fragment"><pre class="fragment"> Key = value ; comment 30 <div class="fragment"><pre class="fragment"> 31 Key = value ; comment 30 32 </pre></div><p> 31 33 The key is any string (possibly containing blanks). The value is any character on the right side of the equal sign. Values can be given enclosed with quotes. If no quotes are present, the value is understood as containing all characters between the first and the last non-blank characters. The following declarations are identical:<p> 32 <div class="fragment"><pre class="fragment"> Hello = "this is a long string value" ; comment 34 <div class="fragment"><pre class="fragment"> 35 Hello = "this is a long string value" ; comment 33 36 Hello = this is a long string value ; comment 34 37 </pre></div><p> … … 47 50 <div class="fragment"><pre class="fragment"><span class="preprocessor"> #include "<a class="code" href="iniparser_8h.html">iniparser.h</a>"</span> 48 51 </pre></div><p> 49 And link your program with the iniparser library by adding <code>-liniparser </code>.ato the compile line.<p>52 And link your program with the iniparser library by adding <code>-liniparser.a</code> to the compile line.<p> 50 53 See the file test/initest.c for an example.<p> 51 54 <hr> … … 60 63 Using the parser</a></h2> 61 64 Comments are discarded by the parser. Then sections are identified, and in each section a new entry is created for every keyword found. The keywords are stored with the following syntax:<p> 62 <div class="fragment"><pre class="fragment"> [Section] 65 <div class="fragment"><pre class="fragment"> 66 [Section] 63 67 Keyword = value ; comment 64 68 </pre></div><p> 65 69 is converted to the following key pair:<p> 66 <div class="fragment"><pre class="fragment"> ("section:keyword", "value") 70 <div class="fragment"><pre class="fragment"> 71 ("section:keyword", "value") 67 72 </pre></div><p> 68 73 This means that if you want to retrieve the value that was stored in the section called <code>Pizza</code>, in the keyword <code>Cheese</code>, you would make a request to the dictionary for <code>"pizza:cheese"</code>. All section and keyword names are converted to lowercase before storage in the structure. The value side is conserved as it has been parsed, though.<p> 69 Section names are also stored in the structure. They are stored using as key the section name, and a NULL associated value. They can be queried through <a class="el" href="iniparser_8h.html# a11">iniparser_find_entry()</a>.<p>70 To launch the parser, simply use the function called <a class="el" href="iniparser_8h.html# a12">iniparser_load()</a>, which takes an input file name and returns a newly allocated <em>dictionary</em> structure. This latter object should remain opaque to the user and only accessed through the following accessor functions:<p>74 Section names are also stored in the structure. They are stored using as key the section name, and a NULL associated value. They can be queried through <a class="el" href="iniparser_8h.html#3d67c98bbc0cb5239f024ad54bdc63f1">iniparser_find_entry()</a>.<p> 75 To launch the parser, simply use the function called <a class="el" href="iniparser_8h.html#b0be559bfb769224b3f1b75e26242a67">iniparser_load()</a>, which takes an input file name and returns a newly allocated <em>dictionary</em> structure. This latter object should remain opaque to the user and only accessed through the following accessor functions:<p> 71 76 <ul> 72 <li><a class="el" href="iniparser_8h.html# a4">iniparser_getstr()</a></li><li><a class="el" href="iniparser_8h.html#a6">iniparser_getint()</a></li><li><a class="el" href="iniparser_8h.html#a7">iniparser_getdouble()</a></li><li><a class="el" href="iniparser_8h.html#a8">iniparser_getboolean()</a></li></ul>77 <li><a class="el" href="iniparser_8h.html#587eafb48937fdee8ae414ad7a666db8">iniparser_getstr()</a></li><li><a class="el" href="iniparser_8h.html#694eb1110f4200db8648820a0bb405fa">iniparser_getint()</a></li><li><a class="el" href="iniparser_8h.html#480d35322f1252344cf2246ac21ee559">iniparser_getdouble()</a></li><li><a class="el" href="iniparser_8h.html#eb93c13fcbb75efaa396f53bfd73ff4d">iniparser_getboolean()</a></li></ul> 73 78 <p> 74 Finally, discard this structure using <a class="el" href="iniparser_8h.html# a13">iniparser_freedict()</a>.<p>79 Finally, discard this structure using <a class="el" href="iniparser_8h.html#90549ee518523921886b74454ff872eb">iniparser_freedict()</a>.<p> 75 80 All values parsed from the ini file are stored as strings. The getint, getdouble and getboolean accessors are just converting these strings to the requested type on the fly, but you could basically perform this conversion by yourself after having called the getstr accessor.<p> 76 Notice that the <a class="el" href="iniparser_8h.html# a8">iniparser_getboolean()</a> function will return an integer (0 or 1), trying to make sense of what was found in the file. Strings starting with "y", "Y", "t", "T" or "1" are considered true values (return 1), strings starting with "n", "N", "f", "F", "0" are considered false (return 0). This allows flexible handling of boolean answers.<p>77 If you want to add extra information into the structure that was not present in the ini file, you can use <a class="el" href="iniparser_8h.html# a9">iniparser_setstr()</a> to insert a string.<p>81 Notice that the <a class="el" href="iniparser_8h.html#eb93c13fcbb75efaa396f53bfd73ff4d">iniparser_getboolean()</a> function will return an integer (0 or 1), trying to make sense of what was found in the file. Strings starting with "y", "Y", "t", "T" or "1" are considered true values (return 1), strings starting with "n", "N", "f", "F", "0" are considered false (return 0). This allows flexible handling of boolean answers.<p> 82 If you want to add extra information into the structure that was not present in the ini file, you can use <a class="el" href="iniparser_8h.html#605a88057bac4c3249513fc588421c32">iniparser_setstr()</a> to insert a string.<p> 78 83 <hr> 79 84 <h2><a class="anchor" name="implementation"> … … 85 90 ini files are nice to present informations to the user in a readable format, but lack a very useful feature: the possibility of organizing data in a hierarchical (tree-like) fashion. The following convention can be used to make ini files obtain this second dimension:<p> 86 91 A section depends on another section if it contains its name as a prefix, separated by slashes (/). For example: we have 2 main sections in the ini file. The first one is called <code>Pizza</code> and has two child subsections called <code>Cheese</code> and <code>Ham</code>. The second main section in the ini file is called <code>Wine</code> and has two child subsections called <code>Year</code> and <code>Grape</code>. As a tree, this could appear as:<p> 87 <div class="fragment"><pre class="fragment"> | 92 <div class="fragment"><pre class="fragment"> 93 | 88 94 +-- Pizza 89 95 | +-- Cheese … … 94 100 </pre></div><p> 95 101 In an ini file, that would be converted to:<p> 96 <div class="fragment"><pre class="fragment"> [Pizza] 102 <div class="fragment"><pre class="fragment"> 103 [Pizza] 97 104 98 105 [Pizza/Cheese] … … 117 124 <div class="fragment"><pre class="fragment"> dictionary * d ; 118 125 119 d = <a class="code" href="iniparser_8h.html# a12">iniparser_load</a>(<span class="stringliteral">"example.ini"</span>);126 d = <a class="code" href="iniparser_8h.html#b0be559bfb769224b3f1b75e26242a67">iniparser_load</a>(<span class="stringliteral">"example.ini"</span>); 120 127 121 printf(<span class="stringliteral">"cheese name is %s\n"</span>, <a class="code" href="iniparser_8h.html# a4">iniparser_getstr</a>(d, <span class="stringliteral">"pizza/cheese:name"</span>));122 printf(<span class="stringliteral">"grape name is %s\n"</span>, <a class="code" href="iniparser_8h.html# a4">iniparser_getstr</a>(d, <span class="stringliteral">"wine/grape:name"</span>));128 printf(<span class="stringliteral">"cheese name is %s\n"</span>, <a class="code" href="iniparser_8h.html#587eafb48937fdee8ae414ad7a666db8">iniparser_getstr</a>(d, <span class="stringliteral">"pizza/cheese:name"</span>)); 129 printf(<span class="stringliteral">"grape name is %s\n"</span>, <a class="code" href="iniparser_8h.html#587eafb48937fdee8ae414ad7a666db8">iniparser_getstr</a>(d, <span class="stringliteral">"wine/grape:name"</span>)); 123 130 124 <a class="code" href="iniparser_8h.html# a13">iniparser_freedict</a>(d);131 <a class="code" href="iniparser_8h.html#90549ee518523921886b74454ff872eb">iniparser_freedict</a>(d); 125 132 </pre></div><p> 126 133 The whole ini file above is represented in the dictionary as the following list of pairs:<p> 127 <div class="fragment"><pre class="fragment"> key value 134 <div class="fragment"><pre class="fragment"> 135 key value 128 136 129 137 "pizza" NULL
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