[BACK]Return to roff.c CVS log [TXT][DIR] Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/roff.c between version 1.172 and 1.174

version 1.172, 2011/10/24 21:41:45 version 1.174, 2012/06/12 20:21:04
Line 1 
Line 1 
 /*      $Id$ */  /*      $Id$ */
 /*  /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>   * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>   * Copyright (c) 2010, 2011, 2012 Ingo Schwarze <schwarze@openbsd.org>
  *   *
  * Permission to use, copy, modify, and distribute this software for any   * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above   * purpose with or without fee is hereby granted, provided that the above
Line 39  enum rofft {
Line 39  enum rofft {
         ROFF_am,          ROFF_am,
         ROFF_ami,          ROFF_ami,
         ROFF_am1,          ROFF_am1,
           ROFF_cc,
         ROFF_de,          ROFF_de,
         ROFF_dei,          ROFF_dei,
         ROFF_de1,          ROFF_de1,
Line 105  struct roff {
Line 106  struct roff {
         struct mparse   *parse; /* parse point */          struct mparse   *parse; /* parse point */
         struct roffnode *last; /* leaf of stack */          struct roffnode *last; /* leaf of stack */
         enum roffrule    rstack[RSTACK_MAX]; /* stack of !`ie' rules */          enum roffrule    rstack[RSTACK_MAX]; /* stack of !`ie' rules */
           char             control; /* control character */
         int              rstackpos; /* position in rstack */          int              rstackpos; /* position in rstack */
         struct reg       regs[REG__MAX];          struct reg       regs[REG__MAX];
         struct roffkv   *strtab; /* user-defined strings & macros */          struct roffkv   *strtab; /* user-defined strings & macros */
Line 169  static enum rofferr  roff_block(ROFF_ARGS);
Line 171  static enum rofferr  roff_block(ROFF_ARGS);
 static  enum rofferr     roff_block_text(ROFF_ARGS);  static  enum rofferr     roff_block_text(ROFF_ARGS);
 static  enum rofferr     roff_block_sub(ROFF_ARGS);  static  enum rofferr     roff_block_sub(ROFF_ARGS);
 static  enum rofferr     roff_cblock(ROFF_ARGS);  static  enum rofferr     roff_cblock(ROFF_ARGS);
   static  enum rofferr     roff_cc(ROFF_ARGS);
 static  enum rofferr     roff_ccond(ROFF_ARGS);  static  enum rofferr     roff_ccond(ROFF_ARGS);
 static  enum rofferr     roff_cond(ROFF_ARGS);  static  enum rofferr     roff_cond(ROFF_ARGS);
 static  enum rofferr     roff_cond_text(ROFF_ARGS);  static  enum rofferr     roff_cond_text(ROFF_ARGS);
Line 215  static struct roffmac  roffs[ROFF_MAX] = {
Line 218  static struct roffmac  roffs[ROFF_MAX] = {
         { "am", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "am", roff_block, roff_block_text, roff_block_sub, 0, NULL },
         { "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "ami", roff_block, roff_block_text, roff_block_sub, 0, NULL },
         { "am1", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "am1", roff_block, roff_block_text, roff_block_sub, 0, NULL },
           { "cc", roff_cc, NULL, NULL, 0, NULL },
         { "de", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "de", roff_block, roff_block_text, roff_block_sub, 0, NULL },
         { "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "dei", roff_block, roff_block_text, roff_block_sub, 0, NULL },
         { "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL },          { "de1", roff_block, roff_block_text, roff_block_sub, 0, NULL },
Line 392  roff_reset(struct roff *r)
Line 396  roff_reset(struct roff *r)
   
         roff_free1(r);          roff_free1(r);
   
           r->control = 0;
         memset(&r->regs, 0, sizeof(struct reg) * REG__MAX);          memset(&r->regs, 0, sizeof(struct reg) * REG__MAX);
   
         for (i = 0; i < PREDEFS_MAX; i++)          for (i = 0; i < PREDEFS_MAX; i++)
Line 611  roff_parseln(struct roff *r, int ln, char **bufp, 
Line 616  roff_parseln(struct roff *r, int ln, char **bufp, 
         assert(ROFF_CONT == e);          assert(ROFF_CONT == e);
   
         ppos = pos;          ppos = pos;
         ctl = mandoc_getcontrol(*bufp, &pos);          ctl = roff_getcontrol(r, *bufp, &pos);
   
         /*          /*
          * First, if a scope is open and we're not a macro, pass the           * First, if a scope is open and we're not a macro, pass the
Line 778  roffnode_cleanscope(struct roff *r)
Line 783  roffnode_cleanscope(struct roff *r)
 {  {
   
         while (r->last) {          while (r->last) {
                 if (--r->last->endspan < 0)                  if (--r->last->endspan != 0)
                         break;                          break;
                 roffnode_pop(r);                  roffnode_pop(r);
         }          }
Line 1098  roff_line_ignore(ROFF_ARGS)
Line 1103  roff_line_ignore(ROFF_ARGS)
 static enum rofferr  static enum rofferr
 roff_cond(ROFF_ARGS)  roff_cond(ROFF_ARGS)
 {  {
         int              sv;  
         enum roffrule    rule;  
   
           roffnode_push(r, tok, NULL, ln, ppos);
   
         /*          /*
          * An `.el' has no conditional body: it will consume the value           * An `.el' has no conditional body: it will consume the value
          * of the current rstack entry set in prior `ie' calls or           * of the current rstack entry set in prior `ie' calls or
Line 1109  roff_cond(ROFF_ARGS)
Line 1114  roff_cond(ROFF_ARGS)
          * If we're not an `el', however, then evaluate the conditional.           * If we're not an `el', however, then evaluate the conditional.
          */           */
   
         rule = ROFF_el == tok ?          r->last->rule = ROFF_el == tok ?
                 (r->rstackpos < 0 ?                  (r->rstackpos < 0 ?
                  ROFFRULE_DENY : r->rstack[r->rstackpos--]) :                   ROFFRULE_DENY : r->rstack[r->rstackpos--]) :
                 roff_evalcond(*bufp, &pos);                  roff_evalcond(*bufp, &pos);
   
         sv = pos;  
         while (' ' == (*bufp)[pos])  
                 pos++;  
   
         /*          /*
          * Roff is weird.  If we have just white-space after the  
          * conditional, it's considered the BODY and we exit without  
          * really doing anything.  Warn about this.  It's probably  
          * wrong.  
          */  
   
         if ('\0' == (*bufp)[pos] && sv != pos) {  
                 mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL);  
                 return(ROFF_IGN);  
         }  
   
         roffnode_push(r, tok, NULL, ln, ppos);  
   
         r->last->rule = rule;  
   
         /*  
          * An if-else will put the NEGATION of the current evaluated           * An if-else will put the NEGATION of the current evaluated
          * conditional into the stack of rules.           * conditional into the stack of rules.
          */           */
Line 1156  roff_cond(ROFF_ARGS)
Line 1141  roff_cond(ROFF_ARGS)
                 r->last->rule = ROFFRULE_DENY;                  r->last->rule = ROFFRULE_DENY;
   
         /*          /*
          * Determine scope.  If we're invoked with "\{" trailing the           * Determine scope.
          * conditional, then we're in a multiline scope.  Else our scope           * If there is nothing on the line after the conditional,
          * expires on the next line.           * not even whitespace, use next-line scope.
          */           */
   
         r->last->endspan = 1;          if ('\0' == (*bufp)[pos]) {
                   r->last->endspan = 2;
                   goto out;
           }
   
           while (' ' == (*bufp)[pos])
                   pos++;
   
           /* An opening brace requests multiline scope. */
   
         if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) {          if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) {
                 r->last->endspan = -1;                  r->last->endspan = -1;
                 pos += 2;                  pos += 2;
                   goto out;
         }          }
   
         /*          /*
          * If there are no arguments on the line, the next-line scope is           * Anything else following the conditional causes
          * assumed.           * single-line scope.  Warn if the scope contains
            * nothing but trailing whitespace.
          */           */
   
         if ('\0' == (*bufp)[pos])          if ('\0' == (*bufp)[pos])
                 return(ROFF_IGN);                  mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL);
   
         /* Otherwise re-run the roff parser after recalculating. */          r->last->endspan = 1;
   
   out:
         *offs = pos;          *offs = pos;
         return(ROFF_RERUN);          return(ROFF_RERUN);
 }  }
Line 1372  roff_TS(ROFF_ARGS)
Line 1368  roff_TS(ROFF_ARGS)
   
 /* ARGSUSED */  /* ARGSUSED */
 static enum rofferr  static enum rofferr
   roff_cc(ROFF_ARGS)
   {
           const char      *p;
   
           p = *bufp + pos;
   
           if ('\0' == *p || '.' == (r->control = *p++))
                   r->control = 0;
   
           if ('\0' != *p)
                   mandoc_msg(MANDOCERR_ARGCOUNT, r->parse, ln, ppos, NULL);
   
           return(ROFF_IGN);
   }
   
   /* ARGSUSED */
   static enum rofferr
 roff_tr(ROFF_ARGS)  roff_tr(ROFF_ARGS)
 {  {
         const char      *p, *first, *second;          const char      *p, *first, *second;
Line 1765  roff_strdup(const struct roff *r, const char *p)
Line 1778  roff_strdup(const struct roff *r, const char *p)
   
         res[(int)ssz] = '\0';          res[(int)ssz] = '\0';
         return(res);          return(res);
   }
   
   /*
    * Find out whether a line is a macro line or not.
    * If it is, adjust the current position and return one; if it isn't,
    * return zero and don't change the current position.
    * If the control character has been set with `.cc', then let that grain
    * precedence.
    * This is slighly contrary to groff, where using the non-breaking
    * control character when `cc' has been invoked will cause the
    * non-breaking macro contents to be printed verbatim.
    */
   int
   roff_getcontrol(const struct roff *r, const char *cp, int *ppos)
   {
           int             pos;
   
           pos = *ppos;
   
           if (0 != r->control && cp[pos] == r->control)
                   pos++;
           else if (0 != r->control)
                   return(0);
           else if ('\\' == cp[pos] && '.' == cp[pos + 1])
                   pos += 2;
           else if ('.' == cp[pos] || '\'' == cp[pos])
                   pos++;
           else
                   return(0);
   
           while (' ' == cp[pos] || '\t' == cp[pos])
                   pos++;
   
           *ppos = pos;
           return(1);
 }  }
Legend:
Removed from v.1.172  
changed lines
  Added in v.1.174
CVSweb