plan9port

[fork] Plan 9 from user space
git clone git://src.adamsgaard.dk/plan9port # fast
git clone https://src.adamsgaard.dk/plan9port.git # slow
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tg.c (2155B)


      1 /* tg.c: process included text blocks */
      2 # include "t.h"
      3 
      4 int
      5 gettext(char *sp, int ilin, int icol, char *fn, char *sz)
      6 {
      7 					/* get a section of text */
      8 	char	line[4096];
      9 	int	oname, startline;
     10 	char	*vs;
     11 
     12 	startline = iline;
     13 	if (texname == 0)
     14 		error("Too many text block diversions");
     15 	if (textflg == 0) {
     16 		Bprint(&tabout, ".nr %d \\n(.lu\n", SL); /* remember old line length */
     17 		textflg = 1;
     18 	}
     19 	Bprint(&tabout, ".eo\n");
     20 	Bprint(&tabout, ".am %s\n", reg(icol, CRIGHT));
     21 	Bprint(&tabout, ".br\n");
     22 	Bprint(&tabout, ".di %c+\n", texname);
     23 	rstofill();
     24 	if (fn && *fn)
     25 		Bprint(&tabout, ".nr %d \\n(.f\n.ft %s\n", S1, fn);
     26 	Bprint(&tabout, ".ft \\n(.f\n"); /* protect font */
     27 	vs = vsize[icol][stynum[ilin]];
     28 	if ((sz && *sz) || (vs && *vs)) {
     29 		Bprint(&tabout, ".nr %d \\n(.v\n", S9);
     30 		if (vs == 0 || *vs == 0)
     31 			vs = "\\n(.s+2";
     32 		if (sz && *sz)
     33 			Bprint(&tabout, ".ps %s\n", sz);
     34 		Bprint(&tabout, ".vs %s\n", vs);
     35 		Bprint(&tabout, ".if \\n(%du>\\n(.vu .sp \\n(%du-\\n(.vu\n", S9, S9);
     36 	}
     37 	if (cll[icol][0])
     38 		Bprint(&tabout, ".ll %sn\n", cll[icol]);
     39 	else
     40 		Bprint(&tabout, ".ll \\n(%du*%du/%du\n", SL, ctspan(ilin, icol), ncol + 1);
     41 	Bprint(&tabout, ".if \\n(.l<\\n(%2s .ll \\n(%2su\n", reg(icol, CRIGHT),
     42 	     reg(icol, CRIGHT));
     43 	if (ctype(ilin, icol) == 'a')
     44 		Bprint(&tabout, ".ll -2n\n");
     45 	Bprint(&tabout, ".in 0\n");
     46 	for (;;) {
     47 		if (gets1(line, sizeof(line)) == nil) {
     48 			iline = startline;
     49 			error("missing closing T}");
     50 		}
     51 		if (line[0] == 'T' && line[1] == '}' && line[2] == tab)
     52 			break;
     53 		if (match("T}", line))
     54 			break;
     55 		Bprint(&tabout, "%s\n", line);
     56 	}
     57 	if (fn && *fn)
     58 		Bprint(&tabout, ".ft \\n(%d\n", S1);
     59 	if (sz && *sz)
     60 		Bprint(&tabout, ".br\n.ps\n.vs\n");
     61 	Bprint(&tabout, ".br\n");
     62 	Bprint(&tabout, ".di\n");
     63 	Bprint(&tabout, ".nr %c| \\n(dn\n", texname);
     64 	Bprint(&tabout, ".nr %c- \\n(dl\n", texname);
     65 	Bprint(&tabout, "..\n");
     66 	Bprint(&tabout, ".ec \\\n");
     67 	/* copy remainder of line */
     68 	if (line[2])
     69 		tcopy (sp, line + 3);
     70 	else
     71 		*sp = 0;
     72 	oname = texname;
     73 	texname = texstr[++texct];
     74 	return(oname);
     75 }
     76 
     77 
     78 void
     79 untext(void)
     80 {
     81 	rstofill();
     82 	Bprint(&tabout, ".nf\n");
     83 	Bprint(&tabout, ".ll \\n(%du\n", SL);
     84 }