Intel XENIX 286 Programmers Guide (86) - Tenox.tc

XENIX Programming
lex (continued)
Example
See Also
yacc
Notes
D
%%
if
[a-z] +
O{D} +
{D} +
"+ +"
"+"
"/* "
[0-9]
printf(" IF statement\n");
pri ntf("tag, value %s\n",yytext);
pri ntf("octal number %s\n" ,yytext);
printf("decimal number %s\n" ,yytext);
pri ntf("unary op\n");
printf("bi nary op\n");
{ loop:
while (input() ! = \(fm\(**\(fm);
switch (input())
}
{
case \(fm/\(fm: break;
case \(fm\(**\(fm : unput(\(fm\(**\(fm);
default: go to loop;
}
Programming Commands
This program translates its input into C source code, which in segmented programming
environments is suitable for compiling as a small model program only. (See cc.)
B-79