Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!ig!arizona!rupley
From: rupley@arizona.edu (John Rupley)
Newsgroups: comp.lang.c
Subject: Re: Scrunch blank lines
Summary: yet another Lex version
Message-ID: <10031@megaron.arizona.edu>
Date: 1 Apr 89 01:57:42 GMT
References: <7150@siemens.UUCP> <9900010@bradley> <4896@cbnews.ATT.COM> <10029@megaron.arizona.edu>
Distribution: na
Organization: U of Arizona CS Dept, Tucson
Lines: 17



In article <620@gonzo.UUCP> daveb@gonzo.UUCP (Dave Brower) writes:
>So, I offer this week's challenge:  Smallest program that will take
>"blank line" style cpp output on stdin and send to stdout a scrunched
>version with appropriate #line directives.

Yet another Lex version:
------------------------------------------------------------------------
	char f[80]; int x;
%%
#.+\n	{sscanf(yytext,"#%d%s",&yylineno,f); x++;}
.+\n	{if(x)printf("# %d %s\n",yylineno-1,f); ECHO; x=0;}
\n	x++;
------------------------------------------------------------------------
John Rupley
rupley!local@megaron.arizona.edu