/* $NetBSD: vfontedpr.c,v 1.14 2012/03/20 20:34:59 matt Exp $ */ /* * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1980, 1993\ The Regents of the University of California. All rights reserved."); #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)vfontedpr.c 8.1 (Berkeley) 6/6/93"; #endif __RCSID("$NetBSD: vfontedpr.c,v 1.14 2012/03/20 20:34:59 matt Exp $"); #endif /* not lint */ #include #include #include #include #include #include #include #include "pathnames.h" #include "extern.h" #define FALSE 0 #define TRUE !(FALSE) #define NIL 0 #define STANDARD 0 #define ALTERNATE 1 /* * Vfontedpr. * * Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy) * */ #define STRLEN 10 /* length of strings introducing things */ #define PNAMELEN 40 /* length of a function/procedure name */ #define PSMAX 20 /* size of procedure name stacking */ static int iskw __P((char *)); static boolean isproc __P((char *)); static void putKcp __P((char *, char *, boolean)); static void putScp __P((char *)); static void putcp __P((int)); static int tabs __P((char *, char *)); static int width __P((char *, char *)); /* * The state variables */ static boolean filter = FALSE; /* act as a filter (like eqn) */ static boolean inchr; /* in a string constant */ static boolean incomm; /* in a comment of the primary type */ static boolean idx = FALSE; /* form an index */ static boolean instr; /* in a string constant */ static boolean nokeyw = FALSE; /* no keywords being flagged */ static boolean pass = FALSE; /* * when acting as a filter, pass indicates * whether we are currently processing * input. */ static int blklevel; /* current nesting level */ static int comtype; /* type of comment */ static const char *defsfile[2] = { _PATH_VGRINDEFS, 0 }; /* name of language definitions file */ static int margin; static int plstack[PSMAX]; /* the procedure nesting level stack */ static char pname[BUFSIZ+1]; static boolean prccont; /* continue last procedure */ static int psptr; /* the stack index of the current procedure */ static char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */ /* * The language specific globals */ char *l_acmbeg; /* string introducing a comment */ char *l_acmend; /* string ending a comment */ char *l_blkbeg; /* string begining of a block */ char *l_blkend; /* string ending a block */ char *l_chrbeg; /* delimiter for character constant */ char *l_chrend; /* delimiter for character constant */ char *l_combeg; /* string introducing a comment */ char *l_comend; /* string ending a comment */ char l_escape; /* character used to escape characters */ char *l_keywds[BUFSIZ/2]; /* keyword table address */ char *l_prcbeg; /* regular expr for procedure begin */ char *l_strbeg; /* delimiter for string constant */ char *l_strend; /* delimiter for string constant */ boolean l_toplex; /* procedures only defined at top lex level */ const char *language = "c"; /* the language indicator */ int main(int, char **); #define ps(x) printf("%s", x) static char minus[] = "-"; static char minusn[] = "-n"; int main(int argc, char *argv[]) { const char *fname = ""; struct stat stbuf; char buf[BUFSIZ]; char *defs; int needbp = 0; argc--, argv++; do { char *cp; int i; if (argc > 0) { if (!strcmp(argv[0], "-h")) { if (argc == 1) { printf("'ds =H\n"); argc = 0; goto rest; } printf("'ds =H %s\n", argv[1]); argc--, argv++; argc--, argv++; if (argc > 0) continue; goto rest; } /* act as a filter like eqn */ if (!strcmp(argv[0], "-f")) { filter++; argv[0] = argv[argc-1]; argv[argc-1] = minus; continue; } /* take input from the standard place */ if (!strcmp(argv[0], "-")) { argc = 0; goto rest; } /* build an index */ if (!strcmp(argv[0], "-x")) { idx++; argv[0] = minusn; } /* indicate no keywords */ if (!strcmp(argv[0], "-n")) { nokeyw++; argc--, argv++; continue; } /* specify the font size */ if (!strncmp(argv[0], "-s", 2)) { i = 0; cp = argv[0] + 2; while (*cp) i = i * 10 + (*cp++ - '0'); printf("'ps %d\n'vs %d\n", i, i+1); argc--, argv++; continue; } /* specify the language */ if (!strncmp(argv[0], "-l", 2)) { language = argv[0]+2; argc--, argv++; continue; } /* specify the language description file */ if (!strncmp(argv[0], "-d", 2)) { defsfile[0] = argv[1]; argc--, argv++; argc--, argv++; continue; } /* open the file for input */ if (freopen(argv[0], "r", stdin) == NULL) { perror(argv[0]); exit(1); } if (idx) printf("'ta 4i 4.25i 5.5iR\n'in .5i\n"); fname = argv[0]; argc--, argv++; } rest: /* * get the language definition from the defs file */ i = cgetent(&defs, defsfile, language); if (i == -1) { fprintf (stderr, "no entry for language %s\n", language); exit(0); } else if (i == -2) { fprintf(stderr, "cannot find vgrindefs file %s\n", defsfile[0]); exit(0); } else if (i == -3) { fprintf(stderr, "potential reference loop detected in vgrindefs file %s\n", defsfile[0]); exit(0); } if (cgetustr(defs, "kw", &cp) == -1) nokeyw = TRUE; else { char **cpp; cpp = l_keywds; while (*cp) { while (*cp == ' ' || *cp =='\t') *cp++ = '\0'; if (*cp) *cpp++ = cp; while (*cp != ' ' && *cp != '\t' && *cp) cp++; } *cpp = NIL; } cgetustr(defs, "pb", &cp); l_prcbeg = convexp(cp); cgetustr(defs, "cb", &cp); l_combeg = convexp(cp); cgetustr(defs, "ce", &cp); l_comend = convexp(cp); cgetustr(defs, "ab", &cp); l_acmbeg = convexp(cp); cgetustr(defs, "ae", &cp); l_acmend = convexp(cp); cgetustr(defs, "sb", &cp); l_strbeg = convexp(cp); cgetustr(defs, "se", &cp); l_strend = convexp(cp); cgetustr(defs, "bb", &cp); l_blkbeg = convexp(cp); cgetustr(defs, "be", &cp); l_blkend = convexp(cp); cgetustr(defs, "lb", &cp); l_chrbeg = convexp(cp); cgetustr(defs, "le", &cp); l_chrend = convexp(cp); l_escape = '\\'; l_onecase = (cgetcap(defs, "oc", ':') != NULL); l_toplex = (cgetcap(defs, "tl", ':') != NULL); /* initialize the program */ incomm = FALSE; instr = FALSE; inchr = FALSE; x_escaped = FALSE; blklevel = 0; for (psptr=0; psptr= 0)) { ps("'FC "); ps(pstack[psptr]); ps("\n"); } #ifdef DEBUG printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr); #endif margin = 0; } needbp = 1; } while (argc > 0); exit(0); } #define isidchr(c) (isalnum((unsigned char)(c)) || (c) == '_') static void putScp(char *os) { char *s = os; /* pointer to unmatched string */ char dummy[BUFSIZ]; /* dummy to be used by expmatch */ char *comptr; /* end of a comment delimiter */ char *acmptr; /* end of a comment delimiter */ char *strptr; /* end of a string delimiter */ char *chrptr; /* end of a character const delimiter */ char *blksptr; /* end of a lexical block start */ char *blkeptr; /* end of a lexical block end */ x_start = os; /* remember the start for expmatch */ x_escaped = FALSE; if (nokeyw || incomm || instr) goto skip; if (isproc(s)) { ps("'FN "); ps(pname); ps("\n"); if (psptr < PSMAX) { ++psptr; strlcpy(pstack[psptr], pname, sizeof(pstack[psptr])); plstack[psptr] = blklevel; } } skip: do { /* check for string, comment, blockstart, etc */ if (!incomm && !instr && !inchr) { blkeptr = expmatch(s, l_blkend, dummy); blksptr = expmatch(s, l_blkbeg, dummy); comptr = expmatch(s, l_combeg, dummy); acmptr = expmatch(s, l_acmbeg, dummy); strptr = expmatch(s, l_strbeg, dummy); chrptr = expmatch(s, l_chrbeg, dummy); /* start of a comment? */ if (comptr != NIL) if ((comptr < strptr || strptr == NIL) && (comptr < acmptr || acmptr == NIL) && (comptr < chrptr || chrptr == NIL) && (comptr < blksptr || blksptr == NIL) && (comptr < blkeptr || blkeptr == NIL)) { putKcp(s, comptr-1, FALSE); s = comptr; incomm = TRUE; comtype = STANDARD; if (s != os) ps("\\c"); ps("\\c\n'+C\n"); continue; } /* start of a comment? */ if (acmptr != NIL) if ((acmptr < strptr || strptr == NIL) && (acmptr < chrptr || chrptr == NIL) && (acmptr < blksptr || blksptr == NIL) && (acmptr < blkeptr || blkeptr == NIL)) { putKcp(s, acmptr-1, FALSE); s = acmptr; incomm = TRUE; comtype = ALTERNATE; if (s != os) ps("\\c"); ps("\\c\n'+C\n"); continue; } /* start of a string? */ if (strptr != NIL) if ((strptr < chrptr || chrptr == NIL) && (strptr < blksptr || blksptr == NIL) && (strptr < blkeptr || blkeptr == NIL)) { putKcp(s, strptr-1, FALSE); s = strptr; instr = TRUE; continue; } /* start of a character string? */ if (chrptr != NIL) if ((chrptr < blksptr || blksptr == NIL) && (chrptr < blkeptr || blkeptr == NIL)) { putKcp(s, chrptr-1, FALSE); s = chrptr; inchr = TRUE; continue; } /* end of a lexical block */ if (blkeptr != NIL) { if (blkeptr < blksptr || blksptr == NIL) { putKcp(s, blkeptr - 1, FALSE); s = blkeptr; blklevel--; if (psptr >= 0 && plstack[psptr] >= blklevel) { /* end of current procedure */ if (s != os) ps("\\c"); ps("\\c\n'-F\n"); blklevel = plstack[psptr]; /* see if we should print the last proc name */ if (--psptr >= 0) prccont = TRUE; else psptr = -1; } continue; } } /* start of a lexical block */ if (blksptr != NIL) { putKcp(s, blksptr - 1, FALSE); s = blksptr; blklevel++; continue; } /* check for end of comment */ } else if (incomm) { comptr = expmatch(s, l_comend, dummy); acmptr = expmatch(s, l_acmend, dummy); if (((comtype == STANDARD) && (comptr != NIL)) || ((comtype == ALTERNATE) && (acmptr != NIL))) { if (comtype == STANDARD) { putKcp(s, comptr-1, TRUE); s = comptr; } else { putKcp(s, acmptr-1, TRUE); s = acmptr; } incomm = FALSE; ps("\\c\n'-C\n"); continue; } else { putKcp(s, s + strlen(s) -1, TRUE); s = s + strlen(s); continue; } /* check for end of string */ } else if (instr) { if ((strptr = expmatch(s, l_strend, dummy)) != NIL) { putKcp(s, strptr-1, TRUE); s = strptr; instr = FALSE; continue; } else { putKcp(s, s+strlen(s)-1, TRUE); s = s + strlen(s); continue; } /* check for end of character string */ } else if (inchr) { if ((chrptr = expmatch(s, l_chrend, dummy)) != NIL) { putKcp(s, chrptr-1, TRUE); s = chrptr; inchr = FALSE; continue; } else { putKcp(s, s+strlen(s)-1, TRUE); s = s + strlen(s); continue; } } /* print out the line */ putKcp(s, s + strlen(s) -1, FALSE); s = s + strlen(s); } while (*s); } static void putKcp( char *start, /* start of string to write */ char *end, /* end of string to write */ boolean force) /* true if we should force nokeyw */ { int i; int xfld = 0; while (start <= end) { if (idx) { if (*start == ' ' || *start == '\t') { if (xfld == 0) printf(""); printf("\t"); xfld = 1; while (*start == ' ' || *start == '\t') start++; continue; } } /* take care of nice tab stops */ if (*start == '\t') { while (*start == '\t') start++; i = tabs(x_start, start) - margin / 8; printf("\\h'|%dn'", i * 10 + 1 - margin % 8); continue; } if (!nokeyw && !force) if ((*start == '#' || isidchr(*start)) && (start == x_start || !isidchr(start[-1]))) { i = iskw(start); if (i > 0) { ps("\\*(+K"); do putcp(*start++); while (--i > 0); ps("\\*(-K"); continue; } } putcp(*start++); } } static int tabs(char *s, char *os) { return (width(s, os) / 8); } static int width(char *s, char *os) { int i = 0; while (s < os) { if (*s == '\t') { i = (i + 8) &~ 7; s++; continue; } if (*s < ' ') i += 2; else i++; s++; } return (i); } static void putcp(int c) { switch(c) { case 0: break; case '\f': break; case '{': ps("\\*(+K{\\*(-K"); break; case '}': ps("\\*(+K}\\*(-K"); break; case '\\': ps("\\e"); break; case '_': ps("\\*_"); break; case '-': ps("\\*-"); break; case '`': ps("\\`"); break; case '\'': ps("\\'"); break; case '.': ps("\\&."); break; case '*': ps("\\fI*\\fP"); break; case '/': ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP"); break; default: if (c < 040) putchar('^'), c |= '@'; case '\t': case '\n': putchar(c); } } /* * look for a process beginning on this line */ static boolean isproc(char *s) { pname[0] = '\0'; if (!l_toplex || blklevel == 0) if (expmatch(s, l_prcbeg, pname) != NIL) { return (TRUE); } return (FALSE); } /* iskw - check to see if the next word is a keyword */ static int iskw(char *s) { char **ss = l_keywds; int i = 1; char *cp = s; while (++cp, isidchr((unsigned char)*cp)) i++; while ((cp = *ss++) != NULL) if (!STRNCMP(s,cp,i) && !isidchr((unsigned char)cp[i])) return (i); return (0); }