group__apr__strings.html

apr函数库使用手册

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    <tr><td></td><td valign=top><em>a</em>&nbsp;</td><td>The first string to compare </td></tr>
    <tr><td></td><td valign=top><em>b</em>&nbsp;</td><td>The second string to compare </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>Either &lt;0, 0, or &gt;0. If the first string is less than the second this returns &lt;0, if they are equivalent it returns 0, and if the first string is greater than second string it retuns &gt;0. </dd></dl>
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<a class="anchor" name="ga0" doxytag="apr_strings.h::apr_strnatcmp" ></a><p>
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          <td class="md" nowrap valign="top"> int apr_strnatcmp           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">char const *&nbsp;</td>
          <td class="mdname" nowrap> <em>a</em>, </td>
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          <td class="md" nowrap>char const *&nbsp;</td>
          <td class="mdname" nowrap> <em>b</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Do a natural order comparison of two strings. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>a</em>&nbsp;</td><td>The first string to compare </td></tr>
    <tr><td></td><td valign=top><em>b</em>&nbsp;</td><td>The second string to compare </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>Either &lt;0, 0, or &gt;0. If the first string is less than the second this returns &lt;0, if they are equivalent it returns 0, and if the first string is greater than second string it retuns &gt;0. </dd></dl>
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<a class="anchor" name="ga17" doxytag="apr_strings.h::apr_strtoff" ></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_strtoff           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">apr_off_t *&nbsp;</td>
          <td class="mdname" nowrap> <em>offset</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>buf</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>char **&nbsp;</td>
          <td class="mdname" nowrap> <em>end</em>, </td>
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          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>base</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Convert a numeric string into an apr_off_t numeric value. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>offset</em>&nbsp;</td><td>The value of the parsed string. </td></tr>
    <tr><td></td><td valign=top><em>buf</em>&nbsp;</td><td>The string to parse. It may contain optional whitespace, followed by an optional '+' (positive, default) or '-' (negative) character, followed by an optional '0x' prefix if base is 0 or 16, followed by numeric digits appropriate for base. </td></tr>
    <tr><td></td><td valign=top><em>end</em>&nbsp;</td><td>A pointer to the end of the valid character in buf. If not NULL, it is set to the first invalid character in buf. </td></tr>
    <tr><td></td><td valign=top><em>base</em>&nbsp;</td><td>A numeric base in the range between 2 and 36 inclusive, or 0. If base is zero, buf will be treated as base ten unless its digits are prefixed with '0x', in which case it will be treated as base 16. </td></tr>
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<a class="anchor" name="ga18" doxytag="apr_strings.h::apr_strtoi64" ></a><p>
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          <td class="md" nowrap valign="top"> apr_int64_t apr_strtoi64           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>buf</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>char **&nbsp;</td>
          <td class="mdname" nowrap> <em>end</em>, </td>
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          <td></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>base</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
parse a numeric string into a 64-bit numeric value <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>buf</em>&nbsp;</td><td>The string to parse. It may contain optional whitespace, followed by an optional '+' (positive, default) or '-' (negative) character, followed by an optional '0x' prefix if base is 0 or 16, followed by numeric digits appropriate for base. </td></tr>
    <tr><td></td><td valign=top><em>end</em>&nbsp;</td><td>A pointer to the end of the valid character in buf. If not NULL, it is set to the first invalid character in buf. </td></tr>
    <tr><td></td><td valign=top><em>base</em>&nbsp;</td><td>A numeric base in the range between 2 and 36 inclusive, or 0. If base is zero, buf will be treated as base ten unless its digits are prefixed with '0x', in which case it will be treated as base 16. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>The numeric value of the string. On overflow, errno is set to ERANGE. </dd></dl>
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<a class="anchor" name="ga13" doxytag="apr_strings.h::apr_strtok" ></a><p>
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          <td class="md" nowrap valign="top"> char* apr_strtok           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">char *&nbsp;</td>
          <td class="mdname" nowrap> <em>str</em>, </td>
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          <td></td>
          <td class="md" nowrap>const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>sep</em>, </td>
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          <td></td>
          <td class="md" nowrap>char **&nbsp;</td>
          <td class="mdname" nowrap> <em>last</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Split a string into separate null-terminated tokens. The tokens are delimited in the string by one or more characters from the sep argument. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>str</em>&nbsp;</td><td>The string to separate; this should be specified on the first call to <a class="el" href="group__apr__strings.html#ga13">apr_strtok()</a> for a given string, and NULL on subsequent calls. </td></tr>
    <tr><td></td><td valign=top><em>sep</em>&nbsp;</td><td>The set of delimiters </td></tr>
    <tr><td></td><td valign=top><em>last</em>&nbsp;</td><td>Internal state saved by <a class="el" href="group__apr__strings.html#ga13">apr_strtok()</a> between calls. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>The next token from the string </dd></dl>
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<a class="anchor" name="ga12" doxytag="apr_strings.h::apr_tokenize_to_argv" ></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_tokenize_to_argv           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const char *&nbsp;</td>
          <td class="mdname" nowrap> <em>arg_str</em>, </td>
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          <td></td>
          <td class="md" nowrap>char ***&nbsp;</td>
          <td class="mdname" nowrap> <em>argv_out</em>, </td>
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          <td class="md" nowrap><a class="el" href="group__apr__pools.html#ga0">apr_pool_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>token_context</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Convert the arguments to a program from one string to an array of strings terminated by a NULL pointer <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>arg_str</em>&nbsp;</td><td>The arguments to convert </td></tr>
    <tr><td></td><td valign=top><em>argv_out</em>&nbsp;</td><td>Output location. This is a pointer to an array of strings. </td></tr>
    <tr><td></td><td valign=top><em>token_context</em>&nbsp;</td><td>Pool to use. </td></tr>
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