/ *
Write a function ESCAPE (S, T), copy the string T into the string S, and will never in the replication process,
The invisible characters such as tabs are converted to / n, / t, respectively, correspondingly visible escape character sequences. Requirements
Switch statement. Reparse a function with the opposite function, convert the escape character sequence to
Actual characters.
* /
Char * escape (char * s, char * t)
{
Char * TEMP = S;
IF (NULL == T || null == s) Return null;
For (; * t! = '/ 0'; t ) {
Switch (* t) {
Case '/ n':
* (TEMP ) = '//'; * (TEMP ) = 'n';
Break;
Case '/ t':
* (TEMP ) = '//'; * (TEMP ) = 't';
Break;
DEFAULT:
* (TEMP ) = * T;
Break;
}
} // end for
* temp = '/ 0';
Return S;
}
Char * unescape (char * s, char * t)
{
Char * TEMP = S;
IF (NULL == T || null == s) Return null;
For (; * t! = '/ 0'; t ) {
IF ('//' == * t && (* (t 1) == 'T' || * (T 1) == 'n')) {
Switch (* (t 1)) {
Case 'T':
* (TEMP ) = '/ t'; t ;
Break;
Case 'n':
* (TEMP ) = '/ n'; t ;
Break;
DEFAULT:
Break;
} // End Switch
}
ELSE * (TEMP ) = * T;
} // end for
* temp = '/ 0';
Return S;
}
//
