/* entab: replace strings of blanks with tabs and blanks */
void entab(char *tab){
int c, pos;
int nb = 0;
int nt = 0;
for(pos = 1; (c = getchar()) != EOF; pos++)
if(c == ' '){
if(tabpos(pos, tab) == NO)
++nb;
else{
nb = 0;
++nt;
}
} else{
for( ; nt > 0; nt--)
putchar('\t');
if(c == '\t')
nb = 0;
else
for( ; nb > 0; nb--)
putchar(' ');
putchar(c);
if(c == '\n')
pos = 0;
else if(c == '\t')
while(tabpos(pos, tab) != YES)
++pos;
}
}
void detab(char *tab)
{
int c,pos=1;
while((c=getchar())!=EOF)
if(c=='\t')
{
do
putchar(' ');
while(tabpos(pos++,tab)!=YES)/*打印空格直到tab结束位*/
}
else if(c=='\n')
void detab(char *tab)
{
while ((c = getchar()) != EOF)
if (c == '\t') {
do
putchar(' ');
while (tabpos(pos++, tab) != YES);
}else if (c == '\n'){
putchar(c);
pos = 1;
}else {
putchar(c);
++pos;
}
}
void detab(char *tab) {
int c, pos = 1;
while ((c = getchar()) != EOF)
if (c == '\t') { /* tab character */
do
putchar(' ');
while(tabpos(pos++, tab) != YES);
} else if (c == '\n') { /* newline character */
putchar(c);
pos = 1;
} else { /* all other characters */
putchar(c);
++pos;
}
}
/* entab: replace strings of blanks with tabs and blanks */
void entab(char *tab)
{
int c, pos;
int nb = 0; /* # of blanks necessary */
int nt = 0; /* # of tabs necessary */
for (pos = 1; (c = getchar()) != EOF; pos++) {
if (c == ' ') {
if (tabpos(pos, tab) == NO) {
++nb; /* increment # of blanks */
} else {
nb = 0; /* reset # of blanks */
++nt; /* one more tab */
}
} else {
for ( ; nt > 0; nt--) {
putchar('\t'); /* output tab(s) */
}
if (c == '\t') { /* forget the blank(s) */
nb = 0;
} else { /* output blank(s) */
for ( ; nb > 0; nb--) {
putchar(' ');
}
}
putchar(c);
if (c == '\n') {
pos = 0;
} else if (c == '\t') {
while (tabpos(pos, tab) != YES) {
++pos;
}
}
}
}
}
/* detab: преобразует символы табуляции из 'from' в пробелы 'to' */
void detab(char to[], char from[])
{
int i, j;
int tabstops[MAXLINE];
settabs(tabstops);
i = j = 0;
while ((to[j] = from[i++])) {
if (to[j] == '\t') {
do {
to[j++] = ' ';
} while (!tabpos(j, tabstops));
}
else
++j;
}
}
/* detab: преобразует символы табуляции в пробелы */
void detab(int tabstops[])
{
int col = 0;
char c;
while ((c = getchar()) != EOF) {
if (c == '\t') {
do
putchar(' ');
while (!tabpos(++col, tabstops));
}
else if (c == '\n') {
putchar(c);
col = 0;
}
else {
putchar(c);
++col;
}
}
}
void detab ( char * detabbed_line, char * source_line ) {
int pos = 0;
while ( * source_line != EOF ) {
if ( * source_line == '\t' ) {
do {
* detabbed_line = ' ';
printf ( "putted detabbed_line = '%c', pos = %d;\n", * detabbed_line, pos );
* detabbed_line ++;
pos ++;
} while ( ( ! tabpos ( pos, tabline ) ) && pos < MAX );
// pos ++;
* source_line ++;
printf ( "step up;\n" );
}
else {
* detabbed_line ++ = * source_line ++ ;
}
}
}
