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23 <h1>src/lib/lightmediascanner_utils.c</h1><a href="lightmediascanner__utils_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
24 <a name="l00021"></a>00021 <span class="preprocessor">#include <<a class="code" href="lightmediascanner__utils_8h.html">lightmediascanner_utils.h</a>></span>
25 <a name="l00022"></a>00022 <span class="preprocessor">#include <ctype.h></span>
26 <a name="l00023"></a>00023 <span class="preprocessor">#include <stdlib.h></span>
27 <a name="l00024"></a>00024 <span class="preprocessor">#include <alloca.h></span>
28 <a name="l00025"></a>00025
29 <a name="l00033"></a>00033 <span class="keywordtype">void</span>
30 <a name="l00034"></a><a class="code" href="lightmediascanner__utils_8c.html#086d2449129976541c66a83984bffbe6">00034</a> <a class="code" href="lightmediascanner__utils_8c.html#086d2449129976541c66a83984bffbe6">lms_strstrip</a>(<span class="keywordtype">char</span> *str, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *p_len)
31 <a name="l00035"></a>00035 {
32 <a name="l00036"></a>00036 <span class="keywordtype">int</span> i, len;
33 <a name="l00037"></a>00037 <span class="keywordtype">char</span> *p;
34 <a name="l00038"></a>00038
35 <a name="l00039"></a>00039 len = *p_len;
36 <a name="l00040"></a>00040
37 <a name="l00041"></a>00041 <span class="keywordflow">if</span> (len == 0)
38 <a name="l00042"></a>00042 <span class="keywordflow">return</span>;
39 <a name="l00043"></a>00043
40 <a name="l00044"></a>00044 <span class="keywordflow">if</span> (*str == <span class="charliteral">'\0'</span>) {
41 <a name="l00045"></a>00045 *p_len = 0;
42 <a name="l00046"></a>00046 <span class="keywordflow">return</span>;
43 <a name="l00047"></a>00047 }
44 <a name="l00048"></a>00048
45 <a name="l00049"></a>00049 p = str + len - 1;
46 <a name="l00050"></a>00050 <span class="keywordflow">for</span> (i = len - 1; i >= 0; i--) {
47 <a name="l00051"></a>00051 <span class="keywordflow">if</span> (isspace(*p) || *p == <span class="charliteral">'\0'</span>) {
48 <a name="l00052"></a>00052 *p = <span class="charliteral">'\0'</span>;
49 <a name="l00053"></a>00053 len--;
50 <a name="l00054"></a>00054 p--;
51 <a name="l00055"></a>00055 } <span class="keywordflow">else</span>
52 <a name="l00056"></a>00056 <span class="keywordflow">break</span>;
53 <a name="l00057"></a>00057 }
54 <a name="l00058"></a>00058 <span class="keywordflow">if</span> (len == 0) {
55 <a name="l00059"></a>00059 *p_len = 0;
56 <a name="l00060"></a>00060 <span class="keywordflow">return</span>;
57 <a name="l00061"></a>00061 }
58 <a name="l00062"></a>00062
59 <a name="l00063"></a>00063 p = str;
60 <a name="l00064"></a>00064 <span class="keywordflow">for</span> (i = 0; i < len; i++) {
61 <a name="l00065"></a>00065 <span class="keywordflow">if</span> (isspace(*p))
62 <a name="l00066"></a>00066 p++;
63 <a name="l00067"></a>00067 <span class="keywordflow">else</span>
64 <a name="l00068"></a>00068 <span class="keywordflow">break</span>;
65 <a name="l00069"></a>00069 }
66 <a name="l00070"></a>00070 len -= i;
67 <a name="l00071"></a>00071 <span class="keywordflow">if</span> (len == 0) {
68 <a name="l00072"></a>00072 *str = <span class="charliteral">'\0'</span>;
69 <a name="l00073"></a>00073 *p_len = 0;
70 <a name="l00074"></a>00074 <span class="keywordflow">return</span>;
71 <a name="l00075"></a>00075 }
72 <a name="l00076"></a>00076
73 <a name="l00077"></a>00077 *p_len = len;
74 <a name="l00078"></a>00078
75 <a name="l00079"></a>00079 <span class="keywordflow">if</span> (str < p)
76 <a name="l00080"></a>00080 <span class="keywordflow">for</span> (; len >= 0; len--, str++, p++)
77 <a name="l00081"></a>00081 *str = *p;
78 <a name="l00082"></a>00082 }
79 <a name="l00083"></a>00083
80 <a name="l00093"></a>00093 <span class="keywordtype">void</span>
81 <a name="l00094"></a><a class="code" href="lightmediascanner__utils_8c.html#45d15c8bfeddaef0d5b1d0bd9ecc0c79">00094</a> <a class="code" href="lightmediascanner__utils_8c.html#45d15c8bfeddaef0d5b1d0bd9ecc0c79">lms_strstrip_and_free</a>(<span class="keywordtype">char</span> **p_str, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *p_len)
82 <a name="l00095"></a>00095 {
83 <a name="l00096"></a>00096 <span class="keywordflow">if</span> (!*p_str)
84 <a name="l00097"></a>00097 <span class="keywordflow">return</span>;
85 <a name="l00098"></a>00098
86 <a name="l00099"></a>00099 <a class="code" href="lightmediascanner__utils_8c.html#086d2449129976541c66a83984bffbe6">lms_strstrip</a>(*p_str, p_len);
87 <a name="l00100"></a>00100 <span class="keywordflow">if</span> (*p_len == 0) {
88 <a name="l00101"></a>00101 free(*p_str);
89 <a name="l00102"></a>00102 *p_str = NULL;
90 <a name="l00103"></a>00103 }
91 <a name="l00104"></a>00104 }
92 <a name="l00105"></a>00105
93 <a name="l00113"></a>00113 <span class="keywordtype">void</span>
94 <a name="l00114"></a><a class="code" href="lightmediascanner__utils_8h.html#5a7e5da69500a12f447a77177dbb6e0d">00114</a> <a class="code" href="lightmediascanner__utils_8c.html#9ed157dee5c16f4c62c5ae6e281580cf">lms_string_size_strip_and_free</a>(<span class="keyword">struct</span> <a class="code" href="structlms__string__size.html">lms_string_size</a> *p)
95 <a name="l00115"></a>00115 {
96 <a name="l00116"></a>00116 <span class="keywordflow">if</span> (!p-><a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>)
97 <a name="l00117"></a>00117 <span class="keywordflow">return</span>;
98 <a name="l00118"></a>00118
99 <a name="l00119"></a>00119 <a class="code" href="lightmediascanner__utils_8c.html#086d2449129976541c66a83984bffbe6">lms_strstrip</a>(p-><a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>, &p-><a class="code" href="structlms__string__size.html#fc37b712d71c2010e655bbd4f0a22e96">len</a>);
100 <a name="l00120"></a>00120 <span class="keywordflow">if</span> (p-><a class="code" href="structlms__string__size.html#fc37b712d71c2010e655bbd4f0a22e96">len</a> == 0) {
101 <a name="l00121"></a>00121 free(p-><a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>);
102 <a name="l00122"></a>00122 p-><a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a> = NULL;
103 <a name="l00123"></a>00123 }
104 <a name="l00124"></a>00124 }
105 <a name="l00125"></a>00125
106 <a name="l00126"></a>00126
107 <a name="l00137"></a>00137 <span class="keywordtype">int</span>
108 <a name="l00138"></a><a class="code" href="lightmediascanner__utils_8c.html#71ee8b57cf7c5eba8ec0593e756d2529">00138</a> <a class="code" href="lightmediascanner__utils_8c.html#71ee8b57cf7c5eba8ec0593e756d2529">lms_which_extension</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> name_len, <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structlms__string__size.html">lms_string_size</a> *exts, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> exts_len) {
109 <a name="l00139"></a>00139 <span class="keywordtype">int</span> i;
110 <a name="l00140"></a>00140 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *exts_pos;
111 <a name="l00141"></a>00141 <span class="keyword">const</span> <span class="keywordtype">char</span> *s;
112 <a name="l00142"></a>00142
113 <a name="l00143"></a>00143 exts_pos = alloca(exts_len * <span class="keyword">sizeof</span>(*exts_pos));
114 <a name="l00144"></a>00144 <span class="keywordflow">for</span> (i = 0; i < exts_len; i++)
115 <a name="l00145"></a>00145 exts_pos[i] = exts[i].len;
116 <a name="l00146"></a>00146
117 <a name="l00147"></a>00147 <span class="keywordflow">for</span> (s = name + name_len - 1; s >= name; s--) {
118 <a name="l00148"></a>00148 <span class="keywordtype">int</span> i, match;
119 <a name="l00149"></a>00149 <span class="keywordtype">char</span> c1, c2;
120 <a name="l00150"></a>00150
121 <a name="l00151"></a>00151 c1 = *s;
122 <a name="l00152"></a>00152 <span class="keywordflow">if</span> (c1 >= <span class="charliteral">'a'</span>)
123 <a name="l00153"></a>00153 c2 = c1;
124 <a name="l00154"></a>00154 <span class="keywordflow">else</span>
125 <a name="l00155"></a>00155 c2 = <span class="charliteral">'a'</span> + c1 - <span class="charliteral">'A'</span>;
126 <a name="l00156"></a>00156
127 <a name="l00157"></a>00157 match = 0;
128 <a name="l00158"></a>00158 <span class="keywordflow">for</span> (i = 0; i < exts_len; i++) {
129 <a name="l00159"></a>00159 <span class="keywordflow">if</span> (exts_pos[i] > 0) {
130 <a name="l00160"></a>00160 <span class="keywordtype">char</span> ce;
131 <a name="l00161"></a>00161
132 <a name="l00162"></a>00162 ce = exts[i].<a class="code" href="structlms__string__size.html#5f4844463b193dadb2286e69200ce8a7">str</a>[exts_pos[i] - 1];
133 <a name="l00163"></a>00163 <span class="keywordflow">if</span> (ce == c1 || ce == c2) {
134 <a name="l00164"></a>00164 <span class="keywordflow">if</span> (exts_pos[i] == 1)
135 <a name="l00165"></a>00165 <span class="keywordflow">return</span> i;
136 <a name="l00166"></a>00166 exts_pos[i]--;
137 <a name="l00167"></a>00167 match = 1;
138 <a name="l00168"></a>00168 } <span class="keywordflow">else</span>
139 <a name="l00169"></a>00169 exts_pos[i] = 0;
140 <a name="l00170"></a>00170 }
141 <a name="l00171"></a>00171 }
142 <a name="l00172"></a>00172 <span class="keywordflow">if</span> (!match)
143 <a name="l00173"></a>00173 <span class="keywordflow">return</span> -1;
144 <a name="l00174"></a>00174 }
145 <a name="l00175"></a>00175
146 <a name="l00176"></a>00176 <span class="keywordflow">return</span> -1;
147 <a name="l00177"></a>00177 }
149 <hr size="1"><address style="text-align: right;"><small>Generated on Wed Apr 22 23:56:01 2009 for Light Media Scanner by
150 <a href="http://www.doxygen.org/index.html">
151 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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