/********************************************************************** * * Description: If a text string is created outside of C, the * escape codes are not correctly stored. This * routine will prepare them for C's use. * * Author : M.J. Leslie * Date: 25-Feb-96 * *********************************************************************/ void mos_ConvertEscapeCode(char *String, char *Code); int main(int argc, char *argv[]) { if (argc == 1) { puts("\n\tPlease provide a text string on the command line."); } else { printf("I/P string is: %s\n", argv[1]); mos_ConvertEscapeCode(argv[1], "\\n"); mos_ConvertEscapeCode(argv[1], "\\t"); mos_ConvertEscapeCode(argv[1], "\\v"); mos_ConvertEscapeCode(argv[1], "\\b"); mos_ConvertEscapeCode(argv[1], "\\r"); mos_ConvertEscapeCode(argv[1], "\\f"); printf("O/P string is: %s\n", argv[1]); } } /********************************************************************** * * Purpose: To convert escape codes in text form into * actual codes. * * I/P ------------------------------- * | A | B | C | \ | n | D | E | F | * ------------------------------- * * O/P ---------------------------- * | A | B | C | \n | D | E | F | * ---------------------------- * **********************************************************************/ void mos_ConvertEscapeCode(char *String, char *Code) { char *Ptr1; char *Ptr2; char EscCode = ' '; /* ... Make sure the Code is long enough */ if (strlen(Code) == 2) { /* ... Find the right escape code. */ switch(Code[1]) { case 'n': /* New line */ EscCode = '\n'; break; case 't': /* Horizontal tab */ EscCode = '\t'; break; case 'v': /* Vertical tab */ EscCode = '\v'; break; case 'b': /* Backspace */ EscCode = '\b'; break; case 'r': /* Return */ EscCode = '\r'; break; case 'f': /* Form feed */ EscCode = '\f'; break; default: break; } /* ... If the escape code has been found */ if (EscCode != ' ') { /* ... Copy each character until the text code is found, ... insert the escape code and copy the remaining chars. */ for (Ptr1=Ptr2=String; Ptr2 < (String+strlen(String)+1); Ptr1++, Ptr2++) { if ((*Ptr2 == '\\') && (*(Ptr2+1) == Code[1])) { *Ptr1 = EscCode; Ptr2++; } else { *Ptr1 = *Ptr2; } } } } }
file: /Techref/language/ccpp/Cref/EXAMPLES/convesc.c, 2KB, , updated: 1997/4/21 09:52, local time: 2024/9/1 11:28,
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