]> git.cameronkatri.com Git - mandoc.git/blobdiff - man_term.c
Added proper `TP' support.
[mandoc.git] / man_term.c
index 1fed4f0daf2eaba5ba3619c83889407c947c957b..6506d08e9cd4baed768f54336d1519941e24171a 100644 (file)
@@ -1,4 +1,4 @@
-/*     $Id: man_term.c,v 1.18 2009/08/10 10:09:51 kristaps Exp $ */
+/*     $Id: man_term.c,v 1.21 2009/08/13 12:31:50 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -32,7 +32,10 @@ extern       size_t            strlcpy(char *, const char *, size_t);
 extern size_t            strlcat(char *, const char *, size_t);
 #endif
 
+#define        MANT_LITERAL     (1 << 0)
+
 #define        DECL_ARGS         struct termp *p, \
+                         int *fl, \
                          const struct man_node *n, \
                          const struct man_meta *m
 
@@ -44,7 +47,7 @@ struct        termact {
 static int               pre_B(DECL_ARGS);
 static int               pre_BI(DECL_ARGS);
 static int               pre_BR(DECL_ARGS);
-static int               pre_br(DECL_ARGS);
+static int               pre_HP(DECL_ARGS);
 static int               pre_I(DECL_ARGS);
 static int               pre_IB(DECL_ARGS);
 static int               pre_IP(DECL_ARGS);
@@ -55,23 +58,31 @@ static      int               pre_RI(DECL_ARGS);
 static int               pre_SH(DECL_ARGS);
 static int               pre_SS(DECL_ARGS);
 static int               pre_TP(DECL_ARGS);
+static int               pre_br(DECL_ARGS);
+static int               pre_fi(DECL_ARGS);
+static int               pre_nf(DECL_ARGS);
+static int               pre_r(DECL_ARGS);
+static int               pre_sp(DECL_ARGS);
 
 static void              post_B(DECL_ARGS);
 static void              post_I(DECL_ARGS);
+static void              post_HP(DECL_ARGS);
 static void              post_SH(DECL_ARGS);
 static void              post_SS(DECL_ARGS);
+static void              post_TP(DECL_ARGS);
+static void              post_i(DECL_ARGS);
 
 static const struct termact termacts[MAN_MAX] = {
        { pre_br, NULL }, /* br */
        { NULL, NULL }, /* TH */
        { pre_SH, post_SH }, /* SH */
        { pre_SS, post_SS }, /* SS */
-       { pre_TP, NULL }, /* TP */
+       { pre_TP, post_TP }, /* TP */
        { pre_PP, NULL }, /* LP */
        { pre_PP, NULL }, /* PP */
        { pre_PP, NULL }, /* P */
        { pre_IP, NULL }, /* IP */
-       { pre_PP, NULL }, /* HP */ /* FIXME */
+       { pre_HP, post_HP }, /* HP */ 
        { NULL, NULL }, /* SM */
        { pre_B, post_B }, /* SB */
        { pre_BI, NULL }, /* BI */
@@ -83,9 +94,12 @@ static const struct termact termacts[MAN_MAX] = {
        { pre_I, post_I }, /* I */
        { pre_IR, NULL }, /* IR */
        { pre_RI, NULL }, /* RI */
-       { NULL, NULL }, /* na */
-       { pre_I, post_I }, /* i */
-       { NULL, NULL }, /* sp */
+       { NULL, NULL }, /* na */ /* TODO: document that has no effect */
+       { pre_I, post_i }, /* i */
+       { pre_sp, NULL }, /* sp */
+       { pre_nf, NULL }, /* nf */
+       { pre_fi, NULL }, /* fi */
+       { pre_r, NULL }, /* r */
 };
 
 static void              print_head(struct termp *, 
@@ -102,13 +116,16 @@ static    int               arg_width(const struct man_node *);
 int
 man_run(struct termp *p, const struct man *m)
 {
+       int              fl;
 
        print_head(p, man_meta(m));
        p->flags |= TERMP_NOSPACE;
        assert(man_node(m));
        assert(MAN_ROOT == man_node(m)->type);
+
+       fl = 0;
        if (man_node(m)->child)
-               print_body(p, man_node(m)->child, man_meta(m));
+               print_body(p, &fl, man_node(m)->child, man_meta(m));
        print_foot(p, man_meta(m));
 
        return(1);
@@ -170,6 +187,27 @@ pre_I(DECL_ARGS)
 }
 
 
+/* ARGSUSED */
+static int
+pre_r(DECL_ARGS)
+{
+
+       p->flags &= ~TERMP_UNDER;
+       p->flags &= ~TERMP_BOLD;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+post_i(DECL_ARGS)
+{
+
+       if (n->nchild)
+               p->flags &= ~TERMP_UNDER;
+}
+
+
 /* ARGSUSED */
 static void
 post_I(DECL_ARGS)
@@ -179,6 +217,27 @@ post_I(DECL_ARGS)
 }
 
 
+/* ARGSUSED */
+static int
+pre_fi(DECL_ARGS)
+{
+
+       *fl &= ~MANT_LITERAL;
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+pre_nf(DECL_ARGS)
+{
+
+       term_newln(p);
+       *fl |= MANT_LITERAL;
+       return(1);
+}
+
+
 /* ARGSUSED */
 static int
 pre_IR(DECL_ARGS)
@@ -191,7 +250,7 @@ pre_IR(DECL_ARGS)
                        p->flags |= TERMP_UNDER;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                if ( ! (i % 2))
                        p->flags &= ~TERMP_UNDER;
        }
@@ -210,7 +269,7 @@ pre_IB(DECL_ARGS)
                p->flags |= i % 2 ? TERMP_BOLD : TERMP_UNDER;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                p->flags &= i % 2 ? ~TERMP_BOLD : ~TERMP_UNDER;
        }
        return(0);
@@ -229,7 +288,7 @@ pre_RB(DECL_ARGS)
                        p->flags |= TERMP_BOLD;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                if (i % 2)
                        p->flags &= ~TERMP_BOLD;
        }
@@ -249,7 +308,7 @@ pre_RI(DECL_ARGS)
                        p->flags |= TERMP_UNDER;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                if ( ! (i % 2))
                        p->flags &= ~TERMP_UNDER;
        }
@@ -269,7 +328,7 @@ pre_BR(DECL_ARGS)
                        p->flags |= TERMP_BOLD;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                if ( ! (i % 2))
                        p->flags &= ~TERMP_BOLD;
        }
@@ -288,7 +347,7 @@ pre_BI(DECL_ARGS)
                p->flags |= i % 2 ? TERMP_UNDER : TERMP_BOLD;
                if (i > 0)
                        p->flags |= TERMP_NOSPACE;
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
                p->flags &= i % 2 ? ~TERMP_UNDER : ~TERMP_BOLD;
        }
        return(0);
@@ -314,6 +373,27 @@ post_B(DECL_ARGS)
 }
 
 
+/* ARGSUSED */
+static int
+pre_sp(DECL_ARGS)
+{
+       int              i, len;
+
+       if (NULL == n->child) {
+               term_vspace(p);
+               return(0);
+       }
+
+       len = atoi(n->child->string);
+       if (0 == len)
+               term_newln(p);
+       for (i = 0; i < len; i++)
+               term_vspace(p);
+
+       return(0);
+}
+
+
 /* ARGSUSED */
 static int
 pre_br(DECL_ARGS)
@@ -324,16 +404,63 @@ pre_br(DECL_ARGS)
 }
 
 
+/* ARGSUSED */
+static int
+pre_HP(DECL_ARGS)
+{
+
+       switch (n->type) {
+       case (MAN_BLOCK):
+               fmt_block_vspace(p, n);
+               break;
+       case (MAN_BODY):
+               p->flags |= TERMP_NOBREAK;
+               p->flags |= TERMP_TWOSPACE;
+               p->offset = INDENT;
+               p->rmargin = INDENT * 2;
+               break;
+       default:
+               return(0);
+       }
+
+       return(1);
+}
+
+
+/* ARGSUSED */
+static void
+post_HP(DECL_ARGS)
+{
+
+       switch (n->type) {
+       case (MAN_BODY):
+               term_flushln(p);
+               p->flags &= ~TERMP_NOBREAK;
+               p->flags &= ~TERMP_TWOSPACE;
+               p->offset = INDENT;
+               p->rmargin = p->maxrmargin;
+               break;
+       default:
+               break;
+       }
+}
+
+
 /* ARGSUSED */
 static int
 pre_PP(DECL_ARGS)
 {
 
-       term_vspace(p);
-       term_vspace(p);
-       p->offset = INDENT;
-       p->flags |= TERMP_NOSPACE;
-       return(0);
+       switch (n->type) {
+       case (MAN_BLOCK):
+               fmt_block_vspace(p, n);
+               break;
+       default:
+               p->offset = INDENT;
+               break;
+       }
+
+       return(1);
 }
 
 
@@ -341,6 +468,8 @@ pre_PP(DECL_ARGS)
 static int
 pre_IP(DECL_ARGS)
 {
+       /* TODO */
+#if 0
        const struct man_node *nn;
        size_t           offs, sv;
        int              ival;
@@ -372,7 +501,7 @@ pre_IP(DECL_ARGS)
                                break;
                        }
                }
-               print_node(p, nn, m);
+               print_node(p, fl, nn, m);
        }
 
        p->rmargin = p->offset + offs;
@@ -385,6 +514,8 @@ pre_IP(DECL_ARGS)
        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
 
        return(0);
+#endif
+       return(1);
 }
 
 
@@ -392,31 +523,49 @@ pre_IP(DECL_ARGS)
 static int
 pre_TP(DECL_ARGS)
 {
-       const struct man_node *nn;
-       size_t           offs;
-
-       term_vspace(p);
 
-       p->offset = INDENT;
+       switch (n->type) {
+       case (MAN_BLOCK):
+               fmt_block_vspace(p, n);
+               break;
+       case (MAN_HEAD):
+               p->rmargin = INDENT * 2;
+               p->offset = INDENT;
+               p->flags |= TERMP_NOBREAK;
+               p->flags |= TERMP_TWOSPACE;
+               break;
+       case (MAN_BODY):
+               p->flags |= TERMP_NOLPAD;
+               p->flags |= TERMP_NOSPACE;
+               p->offset = INDENT * 2;
+               break;
+       default:
+               break;
+       }
 
-       if (NULL == (nn = n->child))
-               return(1);
+       return(1);
+}
 
-       if (nn->line == n->line) {
-               if (MAN_TEXT != nn->type)
-                       errx(1, "expected text line argument");
-               offs = (size_t)atoi(nn->string);
-               nn = nn->next;
-       } else
-               offs = INDENT;
 
-       for ( ; nn; nn = nn->next)
-               print_node(p, nn, m);
+/* ARGSUSED */
+static void
+post_TP(DECL_ARGS)
+{
 
-       term_flushln(p);
-       p->flags |= TERMP_NOSPACE;
-       p->offset += offs;
-       return(0);
+       switch (n->type) {
+       case (MAN_HEAD):
+               term_flushln(p);
+               p->flags &= ~TERMP_NOBREAK;
+               p->flags &= ~TERMP_TWOSPACE;
+               p->rmargin = p->maxrmargin;
+               break;
+       case (MAN_BODY):
+               term_flushln(p);
+               p->flags &= ~TERMP_NOLPAD;
+               break;
+       default:
+               break;
+       }
 }
 
 
@@ -425,8 +574,21 @@ static int
 pre_SS(DECL_ARGS)
 {
 
-       term_vspace(p);
-       p->flags |= TERMP_BOLD;
+       switch (n->type) {
+       case (MAN_BLOCK):
+               term_newln(p);
+               if (n->prev)
+                       term_vspace(p);
+               break;
+       case (MAN_HEAD):
+               p->flags |= TERMP_BOLD;
+               p->offset = HALFINDENT;
+               break;
+       default:
+               p->offset = INDENT;
+               break;
+       }
+
        return(1);
 }
 
@@ -436,9 +598,14 @@ static void
 post_SS(DECL_ARGS)
 {
        
-       term_flushln(p);
-       p->flags &= ~TERMP_BOLD;
-       p->flags |= TERMP_NOSPACE;
+       switch (n->type) {
+       case (MAN_HEAD):
+               term_newln(p);
+               p->flags &= ~TERMP_BOLD;
+               break;
+       default:
+               break;
+       }
 }
 
 
@@ -446,10 +613,28 @@ post_SS(DECL_ARGS)
 static int
 pre_SH(DECL_ARGS)
 {
+       /* 
+        * XXX: undocumented: using two `SH' macros in sequence has no
+        * vspace between calls, only a newline.
+        */
+       switch (n->type) {
+       case (MAN_BLOCK):
+               if (n->prev && MAN_SH == n->prev->tok)
+                       if (NULL == n->prev->body->child)
+                               break;
+               term_vspace(p);
+               break;
+       case (MAN_HEAD):
+               p->flags |= TERMP_BOLD;
+               p->offset = 0;
+               break;
+       case (MAN_BODY):
+               p->offset = INDENT;
+               break;
+       default:
+               break;
+       }
 
-       term_vspace(p);
-       p->offset = 0;
-       p->flags |= TERMP_BOLD;
        return(1);
 }
 
@@ -459,10 +644,17 @@ static void
 post_SH(DECL_ARGS)
 {
        
-       term_flushln(p);
-       p->offset = INDENT;
-       p->flags &= ~TERMP_BOLD;
-       p->flags |= TERMP_NOSPACE;
+       switch (n->type) {
+       case (MAN_HEAD):
+               term_newln(p);
+               p->flags &= ~TERMP_BOLD;
+               break;
+       case (MAN_BODY):
+               term_newln(p);
+               break;
+       default:
+               break;
+       }
 }
 
 
@@ -474,10 +666,6 @@ print_node(DECL_ARGS)
        c = 1;
 
        switch (n->type) {
-       case(MAN_ELEM):
-               if (termacts[n->tok].pre)
-                       c = (*termacts[n->tok].pre)(p, n, m);
-               break;
        case(MAN_TEXT):
                if (0 == *n->string) {
                        term_vspace(p);
@@ -494,32 +682,35 @@ print_node(DECL_ARGS)
                if (sz >= 2 && n->string[sz - 1] == 'c' &&
                                n->string[sz - 2] == '\\')
                        p->flags |= TERMP_NOSPACE;
+               /* FIXME: this means that macro lines are munged!  */
+               if (MANT_LITERAL & *fl) {
+                       p->flags |= TERMP_NOSPACE;
+                       term_flushln(p);
+               }
                break;
        default:
+               if (termacts[n->tok].pre)
+                       c = (*termacts[n->tok].pre)(p, fl, n, m);
                break;
        }
 
        if (c && n->child)
-               print_body(p, n->child, m);
+               print_body(p, fl, n->child, m);
 
-       switch (n->type) {
-       case (MAN_ELEM):
+       if (MAN_TEXT != n->type)
                if (termacts[n->tok].post)
-                       (*termacts[n->tok].post)(p, n, m);
-               break;
-       default:
-               break;
-       }
+                       (*termacts[n->tok].post)(p, fl, n, m);
 }
 
 
 static void
 print_body(DECL_ARGS)
 {
-       print_node(p, n, m);
+
+       print_node(p, fl, n, m);
        if ( ! n->next)
                return;
-       print_body(p, n->next, m);
+       print_body(p, fl, n->next, m);
 }