]> git.cameronkatri.com Git - mandoc.git/blobdiff - man_html.c
Moved output definitions into main.h.
[mandoc.git] / man_html.c
index ce40c3fba26ab1b3f4a9d7a090f40b603b95123f..2aee4bf11b2ff896307bd7bf417b6472bdaa85ad 100644 (file)
@@ -1,4 +1,4 @@
-/*     $Id: man_html.c,v 1.4 2009/10/04 09:35:26 kristaps Exp $ */
+/*     $Id: man_html.c,v 1.10 2009/10/13 10:57:25 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
 #include <sys/types.h>
 #include <sys/queue.h>
 
+#include <assert.h>
+#include <ctype.h>
 #include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
+#include "out.h"
 #include "html.h"
 #include "man.h"
+#include "main.h"
 
-#define        INDENT            7
+/* TODO: preserve ident widths. */
+
+#define        INDENT            5
 #define        HALFINDENT        3
 
 #define        MAN_ARGS          const struct man_meta *m, \
@@ -42,11 +48,23 @@ static      void              print_man_head(MAN_ARGS);
 static void              print_man_nodelist(MAN_ARGS);
 static void              print_man_node(MAN_ARGS);
 
+static int               a2width(const struct man_node *,
+                               struct roffsu *);
+
+static int               man_alt_pre(MAN_ARGS);
 static int               man_br_pre(MAN_ARGS);
-static int               man_PP_pre(MAN_ARGS);
+static int               man_ign_pre(MAN_ARGS);
 static void              man_root_post(MAN_ARGS);
 static int               man_root_pre(MAN_ARGS);
+static int               man_B_pre(MAN_ARGS);
+static int               man_HP_pre(MAN_ARGS);
+static int               man_I_pre(MAN_ARGS);
+static int               man_IP_pre(MAN_ARGS);
+static int               man_PP_pre(MAN_ARGS);
+static int               man_RS_pre(MAN_ARGS);
+static int               man_SB_pre(MAN_ARGS);
 static int               man_SH_pre(MAN_ARGS);
+static int               man_SM_pre(MAN_ARGS);
 static int               man_SS_pre(MAN_ARGS);
 
 #ifdef __linux__
@@ -59,23 +77,23 @@ static      const struct htmlman mans[MAN_MAX] = {
        { NULL, NULL }, /* TH */
        { man_SH_pre, NULL }, /* SH */
        { man_SS_pre, NULL }, /* SS */
-       { NULL, NULL }, /* TP */
+       { man_IP_pre, NULL }, /* TP */
        { man_PP_pre, NULL }, /* LP */
        { man_PP_pre, NULL }, /* PP */
        { man_PP_pre, NULL }, /* P */
-       { NULL, NULL }, /* IP */
-       { NULL, NULL }, /* HP */ 
-       { NULL, NULL }, /* SM */
-       { NULL, NULL }, /* SB */
-       { NULL, NULL }, /* BI */
-       { NULL, NULL }, /* IB */
-       { NULL, NULL }, /* BR */
-       { NULL, NULL }, /* RB */
+       { man_IP_pre, NULL }, /* IP */
+       { man_HP_pre, NULL }, /* HP */ 
+       { man_SM_pre, NULL }, /* SM */
+       { man_SB_pre, NULL }, /* SB */
+       { man_alt_pre, NULL }, /* BI */
+       { man_alt_pre, NULL }, /* IB */
+       { man_alt_pre, NULL }, /* BR */
+       { man_alt_pre, NULL }, /* RB */
        { NULL, NULL }, /* R */
-       { NULL, NULL }, /* B */
-       { NULL, NULL }, /* I */
-       { NULL, NULL }, /* IR */
-       { NULL, NULL }, /* RI */
+       { man_B_pre, NULL }, /* B */
+       { man_I_pre, NULL }, /* I */
+       { man_alt_pre, NULL }, /* IR */
+       { man_alt_pre, NULL }, /* RI */
        { NULL, NULL }, /* na */
        { NULL, NULL }, /* i */
        { man_br_pre, NULL }, /* sp */
@@ -83,9 +101,9 @@ static       const struct htmlman mans[MAN_MAX] = {
        { NULL, NULL }, /* fi */
        { NULL, NULL }, /* r */
        { NULL, NULL }, /* RE */
-       { NULL, NULL }, /* RS */
-       { NULL, NULL }, /* DT */
-       { NULL, NULL }, /* UC */
+       { man_RS_pre, NULL }, /* RS */
+       { man_ign_pre, NULL }, /* DT */
+       { man_ign_pre, NULL }, /* UC */
 };
 
 
@@ -198,6 +216,19 @@ print_man_node(MAN_ARGS)
 }
 
 
+static int
+a2width(const struct man_node *n, struct roffsu *su)
+{
+
+       if (MAN_TEXT != n->type)
+               return(0);
+       if (a2roffsu(n->string, su))
+               return(1);
+
+       return(0);
+}
+
+
 /* ARGSUSED */
 static int
 man_root_pre(MAN_ARGS)
@@ -213,31 +244,35 @@ man_root_pre(MAN_ARGS)
        (void)snprintf(title, BUFSIZ - 1, 
                        "%s(%d)", m->title, m->msec);
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "header";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = "width: 100%;";
+       PAIR_CLASS_INIT(&tag[0], "header");
+       bufcat_style(h, "width", "100%");
+       PAIR_STYLE_INIT(&tag[1], h);
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 10%;";
+       bufinit(h);
+       bufcat_style(h, "width", "10%");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 80%; white-space: nowrap; text-align: center;";
+       bufinit(h);
+       bufcat_style(h, "width", "80%");
+       bufcat_style(h, "white-space", "nowrap");
+       bufcat_style(h, "text-align", "center");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, b);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 10%; text-align: right;";
+       bufinit(h);
+       bufcat_style(h, "width", "10%");
+       bufcat_style(h, "text-align", "right");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_tagq(h, t);
-
        return(1);
 }
 
@@ -256,21 +291,23 @@ man_root_post(MAN_ARGS)
        if (0 == strftime(b, BUFSIZ - 1, "%B %e, %Y", &tm))
                err(EXIT_FAILURE, "strftime");
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "footer";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = "width: 100%;";
+       PAIR_CLASS_INIT(&tag[0], "footer");
+       bufcat_style(h, "width", "100%");
+       PAIR_STYLE_INIT(&tag[1], h);
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 50%;";
+       bufinit(h);
+       bufcat_style(h, "width", "50%");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, b);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 50%; text-align: right;";
+       bufinit(h);
+       bufcat_style(h, "width", "50%");
+       bufcat_style(h, "text-align", "right");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        if (m->source)
                print_text(h, m->source);
@@ -283,26 +320,22 @@ man_root_post(MAN_ARGS)
 static int
 man_br_pre(MAN_ARGS)
 {
-       int             len;
-       struct htmlpair tag;
+       struct roffsu    su;
+       struct htmlpair  tag;
 
-       switch (n->tok) {
-       case (MAN_sp):
-               len = n->child ? atoi(n->child->string) : 1;
-               break;
-       case (MAN_br):
-               len = 0;
-               break;
-       default:
-               len = 1;
-               break;
-       }
+       SCALE_VS_INIT(&su, 1);
+
+       if (MAN_sp == n->tok) {
+               su.scale = 1;
+               if (n->child)
+                       a2roffsu(n->child->string, &su);
+       } else if (MAN_br == n->tok)
+               su.scale = 0;
 
-       buffmt(h, "height: %dem;", len);
-       tag.key = ATTR_STYLE;
-       tag.val = h->buf;
+       bufcat_su(h, "height", &su);
+       PAIR_STYLE_INIT(&tag, h);
        print_otag(h, TAG_DIV, 1, &tag);
-       return(1);
+       return(0);
 }
 
 
@@ -310,90 +343,153 @@ man_br_pre(MAN_ARGS)
 static int
 man_SH_pre(MAN_ARGS)
 {
-       struct htmlpair         tag[2];
+       struct htmlpair  tag[2];
+       struct roffsu    su;
 
        if (MAN_BODY == n->type) {
-               buffmt(h, "margin-left: %dem;", INDENT);
-
-               tag[0].key = ATTR_CLASS;
-               tag[0].val = "sec-body";
-               tag[1].key = ATTR_STYLE;
-               tag[1].val = h->buf;
-
+               SCALE_HS_INIT(&su, INDENT);
+               bufcat_su(h, "margin-left", &su);
+               PAIR_CLASS_INIT(&tag[0], "sec-body");
+               PAIR_STYLE_INIT(&tag[1], h);
                print_otag(h, TAG_DIV, 2, tag);
                return(1);
        } else if (MAN_BLOCK == n->type) {
-               tag[0].key = ATTR_CLASS;
-               tag[0].val = "sec-block";
-
+               PAIR_CLASS_INIT(&tag[0], "sec-block");
                if (n->prev && MAN_SH == n->prev->tok)
                        if (NULL == n->prev->body->child) {
                                print_otag(h, TAG_DIV, 1, tag);
                                return(1);
                        }
 
-               bufcat(h, "margin-top: 1em;");
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
                if (NULL == n->next)
-                       bufcat(h, "margin-bottom: 1em;");
-
-               tag[1].key = ATTR_STYLE;
-               tag[1].val = h->buf;
-
+                       bufcat_su(h, "margin-bottom", &su);
+               PAIR_STYLE_INIT(&tag[1], h);
                print_otag(h, TAG_DIV, 2, tag);
                return(1);
        }
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "sec-head";
-
+       PAIR_CLASS_INIT(&tag[0], "sec-head");
        print_otag(h, TAG_DIV, 1, tag);
        return(1);
 }
 
 
+/* ARGSUSED */
+static int
+man_alt_pre(MAN_ARGS)
+{
+       const struct man_node   *nn;
+       struct tag              *t;
+       int                      i;
+       struct htmlpair          tagi, tagb, *tagp;
+
+       PAIR_CLASS_INIT(&tagi, "italic");
+       PAIR_CLASS_INIT(&tagb, "bold");
+
+       for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
+               switch (n->tok) {
+               case (MAN_BI):
+                       tagp = i % 2 ? &tagi : &tagb;
+                       break;
+               case (MAN_IB):
+                       tagp = i % 2 ? &tagb : &tagi;
+                       break;
+               case (MAN_RI):
+                       tagp = i % 2 ? &tagi : NULL;
+                       break;
+               case (MAN_IR):
+                       tagp = i % 2 ? NULL : &tagi;
+                       break;
+               case (MAN_BR):
+                       tagp = i % 2 ? NULL : &tagb;
+                       break;
+               case (MAN_RB):
+                       tagp = i % 2 ? &tagb : NULL;
+                       break;
+               default:
+                       abort();
+                       /* NOTREACHED */
+               }
+
+               if (i)
+                       h->flags |= HTML_NOSPACE;
+
+               if (tagp) {
+                       t = print_otag(h, TAG_SPAN, 1, tagp);
+                       print_man_node(m, nn, h);
+                       print_tagq(h, t);
+               } else
+                       print_man_node(m, nn, h);
+       }
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+man_SB_pre(MAN_ARGS)
+{
+       struct htmlpair  tag;
+       
+       PAIR_CLASS_INIT(&tag, "small bold");
+       print_otag(h, TAG_SPAN, 1, &tag);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+man_SM_pre(MAN_ARGS)
+{
+       struct htmlpair  tag;
+       
+       PAIR_CLASS_INIT(&tag, "small");
+       print_otag(h, TAG_SPAN, 1, &tag);
+       return(1);
+}
+
+
 /* ARGSUSED */
 static int
 man_SS_pre(MAN_ARGS)
 {
        struct htmlpair  tag[3];
-       int              i;
+       struct roffsu    su;
 
-       i = 0;
+       SCALE_VS_INIT(&su, 1);
 
        if (MAN_BODY == n->type) {
-               tag[i].key = ATTR_CLASS;
-               tag[i++].val = "ssec-body";
-
+               PAIR_CLASS_INIT(&tag[0], "ssec-body");
                if (n->parent->next && n->child) {
-                       bufcat(h, "margin-bottom: 1em;");
-                       tag[i].key = ATTR_STYLE;
-                       tag[i++].val = h->buf;
+                       bufcat_su(h, "margin-bottom", &su);
+                       PAIR_STYLE_INIT(&tag[1], h);
+                       print_otag(h, TAG_DIV, 2, tag);
+                       return(1);
                }
 
-               print_otag(h, TAG_DIV, i, tag);
+               print_otag(h, TAG_DIV, 1, tag);
                return(1);
        } else if (MAN_BLOCK == n->type) {
-               tag[i].key = ATTR_CLASS;
-               tag[i++].val = "ssec-block";
-
+               PAIR_CLASS_INIT(&tag[0], "ssec-block");
                if (n->prev && MAN_SS == n->prev->tok) 
                        if (n->prev->body->child) {
-                               bufcat(h, "margin-top: 1em;");
-                               tag[i].key = ATTR_STYLE;
-                               tag[i++].val = h->buf;
+                               bufcat_su(h, "margin-top", &su);
+                               PAIR_STYLE_INIT(&tag[1], h);
+                               print_otag(h, TAG_DIV, 2, tag);
+                               return(1);
                        }
 
-               print_otag(h, TAG_DIV, i, tag);
+               print_otag(h, TAG_DIV, 1, tag);
                return(1);
        }
 
-       buffmt(h, "margin-left: -%dem;", INDENT - HALFINDENT);
-
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "ssec-head";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = h->buf;
-
+       SCALE_HS_INIT(&su, INDENT - HALFINDENT);
+       bufcat_su(h, "margin-left", &su);
+       PAIR_CLASS_INIT(&tag[0], "ssec-head");
+       PAIR_STYLE_INIT(&tag[1], h);
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
@@ -403,17 +499,205 @@ man_SS_pre(MAN_ARGS)
 static int
 man_PP_pre(MAN_ARGS)
 {
-       struct htmlpair tag;
+       struct htmlpair  tag;
+       struct roffsu    su;
+       int              i;
 
        if (MAN_BLOCK != n->type)
                return(1);
 
-       buffmt(h, "margin-left: %dem;", INDENT);
-       if (n->next && n->next->child) 
-               bufcat(h, "margin-bottom: 1em;");
+       i = 0;
+
+       if (MAN_ROOT == n->parent->tok) {
+               SCALE_HS_INIT(&su, INDENT);
+               bufcat_su(h, "margin-left", &su);
+               i++;
+       }
+       if (n->next && n->next->child) {
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-bottom", &su);
+               i++;
+       }
+
+       PAIR_STYLE_INIT(&tag, h);
+       print_otag(h, TAG_DIV, i ? 1 : 0, &tag);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+man_IP_pre(MAN_ARGS)
+{
+       struct roffsu            su;
+       struct htmlpair          tag;
+       const struct man_node   *nn;
+       int                      width;
+
+       /*
+        * This scattering of 1-BU margins and pads is to make sure that
+        * when text overruns its box, the subsequent text isn't flush
+        * up against it.  However, the rest of the right-hand box must
+        * also be adjusted in consideration of this 1-BU space.
+        */
+
+       if (MAN_BODY == n->type) { 
+               SCALE_HS_INIT(&su, INDENT);
+               bufcat_su(h, "margin-left", &su);
+               PAIR_STYLE_INIT(&tag, h);
+               print_otag(h, TAG_DIV, 1, &tag);
+               return(1);
+       }
+
+       nn = MAN_BLOCK == n->type ? 
+               n->head->child : n->parent->head->child;
+
+       SCALE_HS_INIT(&su, INDENT);
+       width = 0;
+
+       if (MAN_IP == n->tok && NULL != nn)
+               if (NULL != (nn = nn->next)) {
+                       for ( ; nn->next; nn = nn->next)
+                               /* Do nothing. */ ;
+                       width = a2width(nn, &su);
+               }
+
+       if (MAN_TP == n->tok && NULL != nn)
+               width = a2width(nn, &su);
+
+       if (MAN_BLOCK == n->type) {
+               bufcat_su(h, "margin-left", &su);
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
+               bufcat_style(h, "clear", "both");
+               PAIR_STYLE_INIT(&tag, h);
+               print_otag(h, TAG_DIV, 1, &tag);
+               return(1);
+       } 
+
+       bufcat_su(h, "min-width", &su);
+       SCALE_INVERT(&su);
+       bufcat_su(h, "margin-left", &su);
+       SCALE_HS_INIT(&su, 1);
+       bufcat_su(h, "margin-right", &su);
+       bufcat_style(h, "clear", "left");
+
+       if (n->next && n->next->child)
+               bufcat_style(h, "float", "left");
+
+       PAIR_STYLE_INIT(&tag, h);
+       print_otag(h, TAG_DIV, 1, &tag);
+
+       /* With a length string, manually omit the last child. */
+
+       if ( ! width)
+               return(1);
+
+       if (MAN_IP == n->tok)
+               for (nn = n->child; nn->next; nn = nn->next)
+                       print_man_node(m, nn, h);
+       if (MAN_TP == n->tok)
+               for (nn = n->child->next; nn; nn = nn->next)
+                       print_man_node(m, nn, h);
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+man_HP_pre(MAN_ARGS)
+{
+       const struct man_node   *nn;
+       struct htmlpair          tag;
+       struct roffsu            su;
+
+       if (MAN_HEAD == n->type)
+               return(0);
+
+       nn = MAN_BLOCK == n->type ?
+               n->head->child : n->parent->head->child;
+
+       SCALE_HS_INIT(&su, INDENT);
+
+       if (NULL != nn)
+               (void)a2width(nn, &su);
+
+       if (MAN_BLOCK == n->type) {
+               bufcat_su(h, "margin-left", &su);
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
+               bufcat_style(h, "clear", "both");
+               PAIR_STYLE_INIT(&tag, h);
+               print_otag(h, TAG_DIV, 1, &tag);
+               return(1);
+       }
+
+       bufcat_su(h, "margin-left", &su);
+       SCALE_INVERT(&su);
+       bufcat_su(h, "text-indent", &su);
+
+       PAIR_STYLE_INIT(&tag, h);
+       print_otag(h, TAG_DIV, 1, &tag);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+man_B_pre(MAN_ARGS)
+{
+       struct htmlpair  tag;
+
+       PAIR_CLASS_INIT(&tag, "bold");
+       print_otag(h, TAG_SPAN, 1, &tag);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+man_I_pre(MAN_ARGS)
+{
+       struct htmlpair  tag;
+
+       PAIR_CLASS_INIT(&tag, "italic");
+       print_otag(h, TAG_SPAN, 1, &tag);
+       return(1);
+}
+
+
+/* ARGSUSED */
+static int
+man_ign_pre(MAN_ARGS)
+{
+
+       return(0);
+}
+
+
+/* ARGSUSED */
+static int
+man_RS_pre(MAN_ARGS)
+{
+       struct htmlpair  tag;
+       struct roffsu    su;
+
+       if (MAN_HEAD == n->type)
+               return(0);
+       else if (MAN_BODY == n->type)
+               return(1);
+
+       SCALE_HS_INIT(&su, INDENT);
+       bufcat_su(h, "margin-left", &su);
+
+       if (n->head->child) {
+               SCALE_VS_INIT(&su, 1);
+               a2width(n->head->child, &su);
+               bufcat_su(h, "margin-top", &su);
+       }
 
-       tag.key = ATTR_STYLE;
-       tag.val = h->buf;
+       PAIR_STYLE_INIT(&tag, h);
        print_otag(h, TAG_DIV, 1, &tag);
        return(1);
 }