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#include "fold/fold.h"
void fold_text(const char *text,
int linelen,
int line_cb(void *arg, const char *start, int len),
void *arg)
{
const char *start, *end, *sep;
int rc = 0;
start = end = sep = text;
while (!rc) {
if (*end == '\n') {
rc = line_cb(arg, start, end - start);
start = sep = ++end;
} else if (*end == '\0') {
line_cb(arg, start, end - start);
rc = 1;
} else if (end - start >= linelen - 1) {
if (sep != start) {
/* split on a previous word boundary, if
* possible */
rc = line_cb(arg, start, sep - start);
start = end = ++sep;
} else {
/* otherwise, break the word */
end++;
rc = line_cb(arg, start, end - start);
start = sep = end;
}
} else {
end++;
/* record our last separator */
if (*end == ' ')
sep = end;
}
}
}
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