| divert(`-1') | |
| # forloop(var, from, to, stmt) - improved version: | |
| # works even if VAR is not a strict macro name | |
| # performs sanity check that FROM is larger than TO | |
| # allows complex numerical expressions in TO and FROM | |
| define(`forloop', `ifelse(eval(`($2) <= ($3)'), `1', | |
| `pushdef(`$1')_$0(`$1', eval(`$2'), | |
| eval(`$3'), `$4')popdef(`$1')')') | |
| define(`_forloop', | |
| `define(`$1', `$2')$4`'ifelse(`$2', `$3', `', | |
| `$0(`$1', incr(`$2'), `$3', `$4')')') | |
| divert`'dnl |