textwrap.e

HTML-XML-utils由一套小型C程序（过滤器）组成

 void set_indent(int n);
 void set_linelen(int n);
 void flush();
 void outc(unsigned char c, Boolean preformatted);
 void out(unsigned char *s, Boolean preformatted);
 void outn(unsigned char *s, size_t n, Boolean preformatted);
 void outln(unsigned char *s, Boolean preformatted);
 void outbreak();
 void inc_indent(void);
 void dec_indent(void);