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Annotation of libwww/Library/src/HTString.html, revision 2.10

2.6       timbl       1: <HEADER>
                      2: <TITLE>String handling for libwww</TITLE></HEADER>
                      3: <BODY>
2.9       frystyk     4: 
                      5: <H1>String Management</H1>
                      6: 
                      7: These functions provide functionality for case-independent string
                      8: comparison and allocations with copies etc. <P>
                      9: 
                     10: This module is implemented by <A HREF="HTString.c">HTString.c</A>, and
                     11: it is a part of the <A NAME="z10"
                     12: HREF="http://info.cern.ch/hypertext/WWW/Library/User/Guide/Guide.html">Library
                     13: of Common Code</A>. <P>
                     14: 
2.8       frystyk    15: <PRE>
                     16: #ifndef HTSTRING_H
2.1       timbl      17: #define HTSTRING_H
                     18: 
                     19: #include "HTUtils.h"
                     20: 
                     21: extern CONST char * HTLibraryVersion;  /* String for help screen etc */
2.9       frystyk    22: </PRE>
                     23: 
                     24: <H2>Dynamic String Manipulation</H2>
                     25: 
                     26: These two functions are dynamic versions of <CODE>strcpy</CODE> and
                     27: <CODE>strcat</CODE>. They use <CODE>malloc</CODE> for allocating space
                     28: for the string. If <CODE>StrAllocCopy</CODE> is called with a non-NULL
                     29: dest, then this is freed before the new value is assigned so that only
                     30: the <EM>last</EM> string created has to be freed by the user. If
                     31: <CODE>StrAllocCat</CODE> is called with a NULL pointer as destination
                     32: then it is equivalent to <CODE>StrAllocCopy</CODE>.
2.1       timbl      33: 
2.9       frystyk    34: <PRE>
                     35: #define StrAllocCopy(dest, src) HTSACopy (&amp;(dest), src)
                     36: #define StrAllocCat(dest, src)  HTSACat  (&amp;(dest), src)
                     37: extern char * HTSACopy PARAMS ((char **dest, CONST char *src));
                     38: extern char * HTSACat  PARAMS ((char **dest, CONST char *src));
2.6       timbl      39: </PRE>
2.1       timbl      40: 
2.9       frystyk    41: <H2>Case-insensitive String Comparison</H2>
                     42: 
                     43: The usual routines (comp instead of cmp) had some problem.
2.7       luotonen   44: 
                     45: <PRE>
2.9       frystyk    46: extern int strcasecomp  PARAMS((CONST char *a, CONST char *b));
                     47: extern int strncasecomp PARAMS((CONST char *a, CONST char *b, int n));
2.7       luotonen   48: </PRE>
                     49: 
2.9       frystyk    50: <H2>Case-insensitive strstr</H2>
2.7       luotonen   51: 
2.9       frystyk    52: This works like <CODE>strstr()</CODE> but is not case-sensitive.
2.1       timbl      53: 
2.9       frystyk    54: <PRE>
2.10    ! frystyk    55: extern char * strcasestr PARAMS((char *        s1, char * s2));
2.6       timbl      56: </PRE>
2.9       frystyk    57: 
2.6       timbl      58: <H2>Next word or quoted string</H2>
2.9       frystyk    59: <PRE>
                     60: extern char * HTNextField PARAMS ((char** pstr));
                     61: #endif
                     62: </PRE>
2.1       timbl      63: 
2.6       timbl      64: </BODY>
2.9       frystyk    65: </HTML>
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